WO2021020854A1 - 광 경로 제어 부재 및 이를 포함하는 표시 장치 - Google Patents
광 경로 제어 부재 및 이를 포함하는 표시 장치 Download PDFInfo
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- WO2021020854A1 WO2021020854A1 PCT/KR2020/009903 KR2020009903W WO2021020854A1 WO 2021020854 A1 WO2021020854 A1 WO 2021020854A1 KR 2020009903 W KR2020009903 W KR 2020009903W WO 2021020854 A1 WO2021020854 A1 WO 2021020854A1
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- light
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/17—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on variable-absorption elements not provided for in groups G02F1/015 - G02F1/169
- G02F1/172—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on variable-absorption elements not provided for in groups G02F1/015 - G02F1/169 based on a suspension of orientable dipolar particles, e.g. suspended particles displays
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0875—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more refracting elements
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1323—Arrangements for providing a switchable viewing angle
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/1676—Electrodes
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/1677—Structural association of cells with optical devices, e.g. reflectors or illuminating devices
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/1679—Gaskets; Spacers; Sealing of cells; Filling or closing of cells
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/875—Arrangements for extracting light from the devices
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K59/8792—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. black layers
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B2207/00—Coding scheme for general features or characteristics of optical elements and systems of subclass G02B, but not including elements and systems which would be classified in G02B6/00 and subgroups
- G02B2207/123—Optical louvre elements, e.g. for directional light blocking
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
- G02F1/1679—Gaskets; Spacers; Sealing of cells; Filling or closing of cells
- G02F1/1681—Gaskets; Spacers; Sealing of cells; Filling or closing of cells having two or more microcells partitioned by walls, e.g. of microcup type
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2202/00—Materials and properties
- G02F2202/28—Adhesive materials or arrangements
Definitions
- Embodiments relate to a light path control member capable of improving improved front luminance and capable of switching, and a display device including the same.
- the shading film blocks the transmission of light from a light source, and is attached to the front of the display panel, which is a display device used for mobile phones, notebook computers, tablet PCs, vehicle navigation, and vehicle touch, and the incident angle of light when the display transmits the screen. It is used for the purpose of expressing clear image quality at the viewing angle required by the user by adjusting the viewing angle of light according to the method.
- the light-shielding film can control the movement path of light to block light in a specific direction and transmit light in a specific direction.
- such a light blocking film may be applied to a display device such as a navigation device or an instrument panel for a vehicle in a moving means such as a vehicle. That is, the shading film can be applied to various fields according to various purposes.
- the light-shielding film can be used in various environments of users. For example, it may be used during the day or at night, and may be applied in various environments, such as when a user requires a specific viewing angle or when an improved visibility is required.
- An embodiment is to provide an optical path control member that drives in different modes according to application of a voltage and has an improved front luminance, and a display device including the same.
- the optical path control member includes: a first substrate to which light is incident from an external area; A first electrode disposed on an upper surface of the first substrate; A second substrate disposed on the first substrate; A second electrode disposed on the lower surface of the second substrate; A light conversion unit disposed between the first electrode and the second electrode, the light conversion unit includes a partition wall portion and a receiving unit alternately disposed, and the receiving unit changes light transmittance according to application of a voltage, and the The refractive index of the partition wall portion is greater than the refractive index of the outer region, and the difference between the refractive index of the partition wall portion and the outer region is 0.3 or more.
- the light path control member may include a light conversion unit whose light transmittance is changed according to the application of a voltage.
- the light conversion unit of the light path control member may be driven as a light blocking unit when a voltage is not applied, and may be driven as a light transmitting unit when a voltage is applied.
- optical path control member according to the embodiment may be variously applied according to the user's use environment.
- the light conversion unit of the light path control member may extend from the light incidence unit to the light output unit and may have a wider width. Further, when a voltage is applied, since the light absorbing particles move in a direction in which the width becomes narrower, it is possible to facilitate the movement of the light absorbing particles and improve the efficiency of the light path control member.
- the light conversion unit apart from the electrode in the direction of the viewing surface or the electrode in the direction opposite to the direction of the viewing surface, the reduction in light transmission due to the light transmitting unit can be reduced, so that the luminance can be improved, thereby controlling the light path.
- the visibility of the member can be improved.
- the optical path control member may control the refractive index of the partition wall portion.
- the refractive index of the receiving unit may be controlled so that the light transmittance in the lateral direction is reduced.
- the scattering angle of the light scattered from the partition wall portion can be controlled.
- the light passes through the barrier portion at a sufficient distance, thereby minimizing the transmittance of light emitted in the lateral direction in the first mode, thereby improving the efficiency of the shading mode. Can be improved.
- FIG. 1 is a view showing a perspective view of an optical path control member according to an embodiment.
- FIGS. 2 and 3 are views respectively showing perspective views of a first substrate and a first electrode, and a second substrate and a second electrode of an optical path control member according to an exemplary embodiment.
- FIGS. 4 to 7 are views illustrating various cross-sectional views of an optical path control member according to an exemplary embodiment.
- FIGS. 8 and 9 are cross-sectional views illustrating an optical path when an optical path control member according to an embodiment is driven in a first mode.
- 10 to 17 are diagrams for explaining a method of manufacturing an optical path control member according to an exemplary embodiment.
- FIG. 18 is a diagram illustrating a cross-sectional view of a display device to which an optical path control member according to an exemplary embodiment is applied.
- 19 and 20 are diagrams for describing an embodiment of a display device to which an optical path control member according to the embodiment is applied.
- first, second, A, B, (a), and (b) may be used in describing the constituent elements of the embodiment of the present invention. These terms are only for distinguishing the component from other components, and are not limited to the nature, order, or order of the component by the term.
- top (top) or bottom (bottom) is one as well as when the two components are in direct contact with each other. It also includes a case in which the above other component is formed or disposed between the two components.
- optical path control member for a switchable optical path control member that drives in various modes according to application of a voltage.
- the optical path control member includes a first substrate 110, a second substrate 120, a first electrode 210, a second electrode 220, and a light conversion unit. It may include (300).
- the first substrate 110 may support the first electrode 210.
- the first substrate 110 may be rigid or flexible.
- the first substrate 110 may be transparent.
- the first substrate 110 may include a transparent substrate capable of transmitting light.
- the first substrate 110 may include glass, plastic, or a flexible polymer film.
- flexible polymer films include polyethylene terephthalate (PET), polycarbonate (PC), acrylonitrile-butadiene-styrene copolymer (ABS), and polymethylmethacrylic.
- PET polyethylene terephthalate
- PC polycarbonate
- ABS acrylonitrile-butadiene-styrene copolymer
- PMMA Polymethyl Methacrylate
- PEN Polyethylene Naphthalate
- PES Polyether Sulfone
- COC Cyclic Olefin Copolymer
- Triacetylcellulose (TAC) film polyvinyl alcohol
- Polyvinyl alcohol, PVA polyimide
- PI polyimide
- PS polystyrene
- the first substrate 110 may be a flexible substrate having flexible characteristics.
- the first substrate 110 may be a curved or bent substrate. That is, the optical path control member including the first substrate 110 may also be formed to have a flexible, curved, or bent characteristic. For this reason, the optical path control member according to the embodiment may be changed into various designs.
- the first substrate 110 may have a thickness of about 1 mm or less.
- the first electrode 210 may be disposed on one surface of the first substrate 110.
- the first electrode 210 may be disposed on the upper surface of the first substrate 110. That is, the first electrode 210 may be disposed between the first substrate 110 and the second substrate 120.
- the first electrode 210 may include a transparent conductive material.
- the first electrode 210 is indium tin oxide, indium zinc oxide, copper oxide, tin oxide, zinc oxide , It may include a metal oxide such as titanium oxide (titanium oxide).
- the first electrode 210 may be disposed on the first substrate 110 in a film shape.
- the light transmittance of the first electrode 210 may be about 80% or more.
- the first electrode 210 may have a thickness of about 10 nm to about 50 nm.
- the first electrode 210 may include various metals to implement low resistance.
- the first electrode 210 is chromium (Cr), nickel (Ni), copper (Cu), aluminum (Al), silver (Ag), molybdenum (Mo). It may include at least one metal of gold (Au), titanium (Ti), and alloys thereof.
- the first electrode 210 may include a plurality of conductive patterns.
- the first electrode 210 may include a plurality of mesh lines crossing each other and a plurality of mesh openings formed by the mesh lines.
- the first electrode 210 includes a metal
- visibility may be improved because the first electrode is not visually recognized from the outside.
- the luminance of the light path control member according to the embodiment may be improved.
- the second substrate 120 may be disposed on the first substrate 110.
- the second substrate 120 may be disposed on the first electrode 210 on the first substrate 110.
- the second substrate 120 may include a material capable of transmitting light.
- the second substrate 120 may include a transparent material.
- the second substrate 120 may include the same material as or similar to the first substrate 110 described above.
- the second substrate 120 may include glass, plastic, or a flexible polymer film.
- flexible polymer films include polyethylene terephthalate (PET), polycarbonate (PC), acrylonitrile-butadiene-styrene copolymer (ABS), and polymethylmethacrylic.
- PET polyethylene terephthalate
- PC polycarbonate
- ABS acrylonitrile-butadiene-styrene copolymer
- PMMA Polymethyl Methacrylate
- PEN Polyethylene Naphthalate
- PES Polyether Sulfone
- COC Cyclic Olefin Copolymer
- Triacetylcellulose (TAC) film polyvinyl alcohol
- Polyvinyl alcohol, PVA polyimide
- PI polyimide
- PS polystyrene
- the second substrate 120 may be a flexible substrate having a flexible characteristic.
- the second substrate 120 may be a curved or bent substrate. That is, the optical path control member including the second substrate 120 may also be formed to have a flexible, curved, or bent characteristic. For this reason, the optical path control member according to the embodiment may be changed into various designs.
- the second substrate 120 may have a thickness of about 1 mm or less.
- the second electrode 220 may be disposed on one surface of the second substrate 120.
- the second electrode 220 may be disposed on the lower surface of the second substrate 120. That is, the second electrode 220 may be disposed on a surface of the second substrate 120 facing the first substrate 110. That is, the second electrode 220 may be disposed facing the first electrode 210 on the first substrate 110. That is, the second electrode 220 may be disposed between the first electrode 210 and the second substrate 120.
- the second electrode 220 may include a transparent conductive material.
- the second electrode 220 may be indium tin oxide, indium zinc oxide, copper oxide, tin oxide, and zinc oxide. , It may include a metal oxide such as titanium oxide (titanium oxide).
- the second electrode 220 may be disposed on the first substrate 110 in a film shape.
- the light transmittance of the second electrode 220 may be about 80% or more.
- the second electrode 220 may have a thickness of about 10 nm to about 50 nm.
- the second electrode 220 may include various metals to implement low resistance.
- the first electrode 210 is chromium (Cr), nickel (Ni), copper (Cu), aluminum (Al), silver (Ag), molybdenum (Mo). It may include at least one metal of gold (Au), titanium (Ti), and alloys thereof.
- the second electrode 220 may include a plurality of conductive patterns.
- the second electrode 220 may include a plurality of mesh lines crossing each other and a plurality of mesh openings formed by the mesh lines.
- the second electrode 220 includes a metal
- visibility may be improved because the second electrode is not visible from the outside.
- the luminance of the light path control member according to the embodiment may be improved.
- the light conversion unit 300 may be disposed between the first substrate 110 and the second substrate 120. In detail, the light conversion unit 300 may be disposed between the first electrode 210 and the second electrode 220.
- the light conversion unit 300 may include a partition wall portion 310 and an accommodating portion 320.
- the partition wall part 320 may be defined as a partition wall region that partitions the light conversion part, and the receiving part 320 may be defined as a region that changes into a light blocking part and a light transmitting part according to application of a voltage.
- the partition wall portion 310 and the receiving portion 320 may be alternately disposed with each other.
- the partition wall portion 310 and the receiving portion 320 may be disposed in different widths.
- the width of the partition wall portion 310 may be greater than the width of the receiving portion 320.
- the partition wall portion 310 and the receiving portion 320 may be disposed in direct or indirect contact with at least one of the first electrode 210 and the second electrode 220.
- the partition wall portion 310 and the receiving portion 320 may be disposed in direct contact with the first electrode 210 and may be disposed in indirect contact with the second electrode 220. That is, an adhesive layer 400 for bonding the first substrate 110 and the second substrate 120 to each other is disposed on the light transmitting part 300, and the partition wall part 310 and the receiving part 320 The second electrode 220 may indirectly contact and be disposed.
- a buffer layer for improving adhesion between the light conversion unit and the first electrode 210 is disposed between the light conversion unit and the first electrode 210, and the receiving unit 310 ) And the first electrode 210 may be disposed to be spaced apart from each other.
- the partition wall portion 310 and the receiving portion 320 may be alternately disposed with each other.
- the partition wall portion 310 and the receiving portion 320 may be alternately disposed with each other. That is, each of the partition wall portions 310 may be disposed between the receiving portions 320 adjacent to each other, and each receiving portion 320 may be disposed between the partition wall portions 310 adjacent to each other.
- the partition 310 may include a transparent material.
- the partition 310 may include a material that can transmit light.
- the partition 310 may include a resin material.
- the partition 310 may include a photocurable resin material.
- the partition 310 may include a UV resin or a transparent photoresist resin.
- the receiving part 310 may include a urethane resin or an acrylic resin.
- the partition wall portion 310 may transmit light incident on one of the first substrate 110 or the second substrate 120 toward another substrate.
- light may be emitted from the direction of the first substrate 110 so that light may be incident on the first substrate 110.
- the partition 310 transmits the light and , The transmitted light may move toward the second substrate 120.
- the partition 310 may have a constant refractive index.
- the partition 310 may be controlled to have a refractive index within a specific range in order to improve the light blocking effect.
- the partition 310 may further include an additive for controlling the refractive index.
- the refractive index of the partition 310 will be described in detail below.
- the receiving part 320 may include a photo-conversion material including an electrolyte 320a and light absorbing particles 320b. Specifically, the receiving part 320 is filled with the electrolyte 320a, and the electrolyte A plurality of light absorbing particles 320b may be dispersed in 320a.
- the electrolyte 320a may be a material that disperses the light absorbing particles 320b.
- the electrolyte 320a may include a transparent material.
- the electrolyte 320a may include a paraffinic solvent.
- the electrolyte 320a may include a material capable of transmitting light.
- the light absorbing particles 320b may be dispersed and disposed in the electrolyte 320a.
- the plurality of light absorbing particles 320b may be disposed to be spaced apart from each other in the electrolyte 320a.
- the light absorbing particles 320b may have a color.
- the light absorbing particles 320b may include black light absorbing particles.
- the light absorbing particles 320b may include carbon black. That is, the light absorbing particles 320b may be carbon black particles.
- the light absorbing particles 320b may be formed in a spherical or circular shape.
- the light absorbing particles 320b may have a diameter of several nanometers (nm).
- the accommodating part 320 may have a light transmittance changed by the light absorbing particles 320b.
- the light transmittance of the receiving part 320 to the light blocking part and the light transmitting part may be changed by the light absorbing particles 320b.
- the optical path member according to the embodiment is changed from a first mode to a second mode or from a second mode to a first mode by a voltage applied to the first electrode 210 and the second electrode 220 Can be.
- the receiving unit 320 in the first mode, may be a light blocking unit, and light of a specific angle may be blocked by the receiving unit 320. That is, the viewing angle of the user as viewed from the outside may be narrowed.
- the receiving unit 320 in the second mode, the receiving unit 320 becomes a light transmitting unit, and the light path control member according to the embodiment is in the partition 310 and the receiving unit 320. All can be transmitted through light. That is, the viewing angle of the user as viewed from the outside may be widened.
- the conversion from the first mode to the second mode that is, the conversion of the receiving part 320 from the light blocking part to the light transmitting part, will be implemented by the movement of the light absorbing particles 320b of the receiving part 320. I can.
- the receiving portion 320 may be electrically connected to the first electrode 210 and the second electrode 220.
- the receiving unit 320 may be driven as a light blocking unit.
- the light absorbing particles 320b may be moved.
- the light absorbing particles 320b may be moved in the direction of one end or the other end of the receiving part 320 by the voltage transmitted through the first electrode 210 and the second electrode 220. I can. That is, the light absorbing particles 320b may move toward the first electrode or the second electrode.
- the light absorbing particles including the carbon black may be charged.
- the carbon black light absorbing particles themselves are charged with a negative charge, or a functional group similar to a surfactant is chemically introduced on the surface of the carbon black light absorbing particles to form micelles, thereby creating a charging effect.
- the absorbing particles can be charged.
- the charged carbon black that is, the light absorbing particles, may be moved in the direction of the (+) electrode of the first electrode 210 and the second electrode 220 using the electrolyte 320a as a medium.
- the receiving part 320 may be driven as a light blocking part.
- the light absorbing particles 320b are in the electrolyte 320a. It may be moved in the direction of the second electrode 220, that is, the light absorbing particles 320b may be moved in one direction, and the receiving part 320 may be driven as a light transmitting part.
- the optical path control member according to the embodiment may be driven in two modes according to the user's surrounding environment. That is, when the user desires light transmission only from a specific viewing angle, the receiving unit is driven as a light blocking unit, or in an environment where the user requires a wide viewing angle and high luminance, the receiving unit is driven as a light transmitting unit by applying a voltage. I can.
- the optical path control member according to the embodiment can be implemented in two modes according to the user's request, the optical path member can be applied regardless of the user's environment.
- the receiving part 320 may be formed in various shapes.
- the receiving part 320 extends from one end of the receiving part 310 to the other end, and the width of the receiving part 320 may be changed.
- the receiving part 320 may be formed in a trapezoidal shape.
- the accommodating portion 320 may extend from the first electrode 210 to the second electrode 220 and may be formed to have a wider width of the accommodating portion 320.
- the width of the accommodating part 320 may be narrowed while extending from the viewing surface of the user in the opposite direction.
- the light absorbing particles of the receiving part 320 may move in a direction in which the width of the receiving part is narrowed.
- the width of the accommodating part 320 may be widened while extending from the light incidence part to which light is incident to the light output part direction from which light is emitted.
- the light absorbing particles of the receiving part 320 may move in the direction of the first electrode 210.
- the light absorbing particles move in a direction opposite to the viewing surface, not the viewing surface, it is possible to prevent blocking of light emitted in the viewing surface direction, thereby improving the luminance of the optical path member.
- the light absorbing particles move from a wide area to a narrow area, the light absorbing particles can be easily moved.
- the light absorbing particles move to a narrow area of the accommodating portion, the amount of light transmitted in the direction of the user's viewing surface may be increased, thereby improving front brightness.
- the accommodating portion 320 may extend from the first electrode 210 to the second electrode 220 and may be formed to have a narrow width of the accommodating portion 320.
- the width of the accommodating part 320 may increase while extending from the viewing surface of the user in the opposite direction.
- the light absorbing particles of the receiving part 320 may move in a direction in which the width of the receiving part is widened.
- the width of the accommodating part 320 may be narrowed while extending from the light incidence part to which light is incident to the light-emitting part direction.
- the light absorbing particles of the receiving part 320 may move in the direction of the first electrode 210.
- the contact area between the first electrode and the surface of the receiving portion through which the light absorbing particles move is increased, so that the moving speed of the light absorbing particles, that is, the driving speed, may be increased.
- the receiving part 320 may be disposed to be spaced apart from the first electrode 210 or the second electrode 220. That is, the accommodating part 320 may be disposed in contact with only one of the first electrode 210 and the second electrode 220.
- the accommodating part 320 may be spaced apart from the first electrode 210 and may contact the second electrode 220. That is, the receiving part 320 may indirectly contact the second electrode 220 through the adhesive layer 400.
- the same or similar material as the partition 310 may be disposed in a region where the receiving part 320 and the first electrode 210 are spaced apart from each other.
- the brightness of the light path control member may be improved, thereby improving visibility.
- the refractive index of the partition 310 may be controlled.
- the refractive index of the partition 310 may be controlled to narrow the viewing angle in the left and right directions.
- FIG. 8 is a diagram illustrating a path of light when the light path control member according to the embodiment is in a first mode, that is, when the receiving portion serves as a light blocking portion.
- light incident on the light path control member from an external area may be incident at a first angle ⁇ 1.
- Light incident at the first angle ⁇ 1 may be defined as an incident angle.
- light incident on the light path control member and incident on the partition 310 may be incident at a second angle ⁇ 2.
- the second angle ⁇ 2 may be defined as a scattering angle.
- the light emitted in the direction of the second substrate may vary according to the size of a scattering angle of light incident in the direction of the partition 310.
- the scattering angle of light incident into the partition 310 decreases, the light incident into the partition 310 does not pass through the receiving part 320 at all or passes through the receiving part 320 at all. Since the passing distance is reduced, the side light shielding effect of the light path control member can be reduced.
- the scattering angle of the light incident to the partition 310 is related to the refractive index of the partition 310, and accordingly, the optical path control member according to the embodiment determines the scattering angle of the light incident on the partition 310 To control, the refractive index of the partition 310 may be controlled within a specific range.
- the scattering angle of the partition wall portion may be changed due to a difference between the external refractive index and the refractive index of the partition wall 310 for light incident from the outside to the partition wall portion 310 of the optical path control member.
- the transmittance of light transmitted upward of the partition wall portion 310 increases, and as the scattering angle increases, the transmittance of light transmitted upward of the receiving part 310 decreases. I can.
- the shading mode when the light transmittance exceeds about 1%, the viewing angle of the user is increased, so that the shading effect may be reduced.
- the light path control member according to the embodiment may control the scattering angle within the partition 310 so that the light transmittance is less than about 1% in the first mode. That is, the light path control member according to the embodiment may control the refractive index of the partition 310 so that the light transmittance is less than about 1% in the first mode.
- the refractive index of the external region A in which light is incident in the direction of the optical path control member is defined as a first refractive index
- the refractive index of the partition 310 of the optical path control member is defined as a second refractive index
- the second refractive index may be greater than the first refractive index
- a difference between the second refractive index and the first refractive index may be 0.3 or more.
- a difference between the second refractive index and the first refractive index may be 0.4 or more.
- a difference between the second refractive index and the first refractive index may be 0.45 or more.
- a difference between the second refractive index and the first refractive index may be 0.3 to 0.9.
- the difference between the second refractive index and the first refractive index may be 0.4 to 0.8.
- the difference between the second refractive index and the first refractive index may be 0.45 to 0.5.
- the refractive index of the partition 310 may be 1.3 or more.
- the refractive index of the partition wall portion may be 1.4 or more.
- the refractive index of the partition wall portion may be 1.45 or higher.
- the refractive index of the partition wall portion may be 1.5 or more.
- the difference between the second refractive index and the first refractive index is less than about 0.3, the distance of light passing through the receiving portion is reduced, and thus, the light transmittance is increased, so that the light blocking effect may be reduced.
- the difference between the second refractive index and the first refractive index exceeds about 0.9, the distance of light passing through the receiving unit is reduced, or the light does not pass through the receiving unit, and thus the light transmittance is increased and thus the light blocking effect Can be reduced.
- the optical path control member according to the embodiment may satisfy the following equation by controlling the refractive index of the receiving portion.
- Width of receiving part * 0.9 ⁇ Distance of light passing through receiving part ⁇ Width of receiving part * 1.7
- the second refractive index of the partition wall portion was greater than the second refractive index of the air region, and while changing the second refractive index of the partition wall portion from 1.3 to 1.9, the scattering angle and incident light inside the partition wall portion Including the distance (D) passing through the receiving portion serving as a light-shielding portion, optical density and light transmittance were measured.
- the maximum width of the partition wall portion and the receiving portion was set to 30 ⁇ m, and the maximum height of the partition wall portion and the receiving portion was set to 100 ⁇ m.
- the second refractive index of the partition wall portion was greater than the first refractive index of the air region, and the scattering angle inside the partition wall portion was the same as in Example 1, except that the second refractive index of the partition wall portion was changed from 2.0 to 2.6. , The distance (D) through which incident light passes through the receiving portion including the black light absorbing particles, optical density and light transmittance were measured.
- Air area Bulkhead area Optical properties First refractive index Incidence angle ( ⁇ 1) Second refractive index Scattering angle ( ⁇ 2) D( ⁇ m) Optical density Light transmittance (%) One 45° 1.3 26.48° 39.88 3.97 0.011 One 45° 1.4 27.98° 44.30 4.38 0.009 One 45° 1.45 28.15° 49.03 4.24 0.002 One 45° 1.5 28.13° 49.75 4.48 0.003 One 45° 1.6 26.23° 43.60 3.92 0.012 One 45° 1.7 24.58° 37.84 3.41 0.039 One 45° 1.8 23.13° 32.37 2.91 0.122 One 45° 1.9 21.85° 27.13 2.44 0.362 One 45° 2.0 20.70° 22.05 1.98 1.036 One 45° 2.1 19.68° 17.11 1.54 2.887 One 45° 2.2 18.75° 12.27 1.10 7.873 One 45° 2.3 17.90° 7.51 0.68 21.096 One 45° 2.4 17.14° 2.82
- the light path control member according to the embodiment has a longer distance through which light incident into the partition wall portion passes through the partition wall portion compared to the optical path control member according to the comparative example.
- the refractive index of the partition wall portion is 1.3 to 1.9, that is, the difference in refractive index between the outer region and the partition wall portion is 0.3 to 0.9, the path through which the light incident to the partition wall portion passes through the receiving portion increases, thereby reducing the light transmittance.
- the light path control member according to the comparative example has a shorter distance through the partition wall portion than the light path control member according to the embodiment.
- the refractive index of the partition wall portion is less than 1.3, that is, the difference in refractive index between the outer region and the partition wall portion is less than 0.3, the path through which the light incident to the partition wall portion passes through the receiving portion decreases, thereby increasing the light transmittance transmitted toward the user. Can be seen.
- the refractive index of the partition wall portion exceeds 1.9, that is, the difference in refractive index between the outer region and the partition wall portion exceeds 0.9, the path through which the light incident to the partition wall portion passes through the receiving portion is reduced, or the light does not pass through the partition wall portion. As the result, it can be seen that the transmittance of light transmitted toward the user is increased.
- the light path control member may include a light conversion unit whose light transmittance is changed according to the application of a voltage.
- the light conversion unit of the light path control member may be driven as a light blocking unit when a voltage is not applied, and may be driven as a light transmitting unit when a voltage is applied.
- optical path control member according to the embodiment may be variously applied according to the user's use environment.
- the light transmitting part of the light path control member may extend from the light incidence part to the light output part and may have a wider width. Further, when a voltage is applied, since the light absorbing particles move in a direction in which the width becomes narrower, it is possible to facilitate the movement of the light absorbing particles and improve the efficiency of the light path control member.
- the reduction in light transmission due to the light-transmitting portion can be reduced, so that the luminance can be improved, thereby controlling the light path.
- the visibility of the member can be improved.
- the optical path control member may control the refractive index of the partition wall portion.
- the refractive index of the accommodating portion may be controlled so that the light transmittance in the lateral direction is reduced.
- the scattering angle of the light scattered from the partition wall portion can be controlled.
- the light passes through the barrier portion at a sufficient distance, thereby minimizing the transmittance of light emitted in the lateral direction in the first mode, thereby improving the efficiency of the shading mode. Can be improved.
- an electrode material forming the first substrate 110 and the first electrode is prepared. Subsequently, the electrode material may be formed on one surface of the first substrate 110 by a coating or deposition process. In detail, the electrode material may be formed on the entire surface of the first substrate 110. Accordingly, a first electrode 210 formed as a surface electrode may be formed on the first substrate 110.
- a resin layer may be formed by applying a resin material on the first electrode 210.
- a resin layer may be formed by applying a urethane resin or an acrylic resin on the first electrode 210.
- a pattern part may be formed on the resin layer using a mold.
- a mold by imprinting the mold, holes or grooves are formed in the resin layer, and a partition wall portion may be formed by the remaining resin layer. That is, the partition wall portion 310 and the accommodation portion 320 described above may be formed on the resin layer.
- an electrode material forming the second substrate 120 and the second electrode is prepared.
- the electrode material may be formed on one surface of the second substrate 120 by a coating or deposition process.
- the electrode material may be formed on the entire surface of the second substrate 120.
- a second electrode 220 formed as a surface electrode may be formed on the second substrate 120.
- an adhesive layer 400 may be formed by applying an adhesive material on the second electrode 220.
- the adhesive layer 400 may be formed on a partial region of the second electrode 220.
- the first substrate 110 and the second substrate 120 prepared above may be adhered.
- the first substrate 110 and the second substrate 120 may be bonded to each other through the adhesive layer 400 on the second substrate 120.
- first substrate 110 and the second substrate 120 may be adhered in different directions.
- first substrate 110 and the second substrate 120 may be bonded to each other so that the long side direction of the first substrate 110 and the short side direction of the second substrate 120 overlap each other.
- a dam part 600 may be formed on the first substrate 110.
- the dam part 600 may be disposed above and below the receiving part 320 disposed on the first substrate 110. That is, the dam part 600 may be disposed so that the receiving part 320 is disposed between the blocking films 600.
- a light conversion material may be injected between the receiving portion 320, that is, the partition wall portions 310.
- a photoconversion material in which light absorbing particles such as carbon black are dispersed may be injected into an electrolyte solvent including a paraffinic solvent or the like between the receiving portions 320, that is, between the partition walls. Accordingly, the partition wall portion 310 described above may be formed between the accommodating portions 320.
- a sealing part 500 in the lateral direction of the receiving part 320 by forming a sealing part 500 in the lateral direction of the receiving part 320, the light conversion material inside the receiving part may be sealed from the outside. Subsequently, by cutting the first substrate 110, a final optical path control member may be formed.
- FIGS. 18 to 20 A display device and a display device to which a light path control member according to an exemplary embodiment is applied will be described with reference to FIGS. 18 to 20.
- the optical path control member 1000 may be disposed on the display panel 2000.
- the display panel 2000 and the light path control member 1000 may be adhered to each other and disposed.
- the display panel 2000 and the light path control member 1000 may be adhered to each other through an adhesive member 1500.
- the adhesive member 1500 may be transparent.
- the adhesive member 1500 may include an adhesive or an adhesive layer including an optically transparent adhesive material.
- the adhesive member 1500 may include a release film.
- the light path control member and the display panel may be adhered.
- the display panel 2000 may include a first substrate 2100 and a second substrate 2200.
- the display panel 2000 is a liquid crystal display panel
- the display panel 2000 includes a first substrate 2100 including a thin film transistor (TFT) and a pixel electrode, and a second substrate including color filter layers.
- 2200 may be formed in a structure bonded with a liquid crystal layer therebetween.
- TFT thin film transistor
- a thin film transistor, a color filter, and a black electrolyte 320a are formed on the first substrate 2100, and the second substrate 2200 is the first substrate 2100 with a liquid crystal layer interposed therebetween.
- the black electrolyte may be omitted, and the common electrode may be formed to serve as the black electrolyte.
- the display device may further include a backlight unit that provides light from a rear surface of the display panel 2000.
- the display panel 2000 when the display panel 2000 is an organic light emitting display panel, the display panel 2000 may include a self-luminous device that does not require a separate light source.
- a thin film transistor may be formed on the first substrate 2100, and an organic light emitting device may be formed in contact with the thin film transistor.
- the organic light-emitting device may include an anode, a cathode, and an organic light-emitting layer formed between the anode and the cathode.
- a second substrate 2200 serving as an encapsulation substrate for encapsulation on the organic light emitting device may be further included.
- a polarizing plate may be further disposed between the light path control member 1000 and the display panel 2000.
- the polarizing plate may be a linear polarizing plate or an anti-reflection polarizing plate.
- the polarizing plate may be a linear polarizing plate.
- the polarizing plate may be a polarizing plate for preventing reflection of external light.
- an additional functional layer 1300 such as an anti-reflection layer or anti-glare may be further disposed on the light path control member 1000.
- the functional layer 1300 may be adhered to one surface of the base substrate 100 of the light path control member.
- the functional layer 1300 may be adhered to each other through the base substrate 100 and the adhesive layer of the light path control member.
- a release film for protecting the functional layer may be further disposed on the functional layer 1300.
- a touch panel may be further disposed between the display panel and the light path control member.
- the light path control member is disposed on the display panel, but embodiments are not limited thereto, and the light control member is a position at which light can be adjusted, that is, a lower portion of the display panel or the display panel It may be disposed in various positions, such as between the upper and lower substrates of the.
- the optical path control member according to the embodiment may be applied to a vehicle.
- the optical path control member according to the embodiment may be applied to a display device displaying a display.
- the receiving part when power is not applied to the light path control member as shown in FIG. 19, the receiving part functions as a light blocking unit, so that the display device is driven in a light blocking mode, and power is applied to the light path control member as shown in FIG. If so, the receiving portion functions as a light transmitting portion, so that the display device can be driven in the open mode.
- the user can easily drive the display device in the privacy mode or the normal mode according to the application of power.
- the display device to which the light path control member according to the embodiment is applied may also be applied to the interior of a vehicle.
- the display device including the light path control member may display vehicle information and an image confirming the movement path of the vehicle.
- the display device may be disposed between a driver's seat and a passenger seat of a vehicle.
- optical path control member may be applied to an instrument panel that displays a vehicle speed, an engine, and a warning signal.
- the light path control member according to the embodiment may be applied to the windshield (FG) or left and right window glass of a vehicle.
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Abstract
Description
| 공기영역 | 격벽부 영역 | 광 특성 | ||||
| 제1굴절률 | 입사각(θ1) | 제2굴절률 | 산란각(θ2) | D(㎛) | 광학밀도 | 광투과율(%) |
| 1 | 45° | 1.3 | 26.48° | 39.88 | 3.97 | 0.011 |
| 1 | 45° | 1.4 | 27.98° | 44.30 | 4.38 | 0.009 |
| 1 | 45° | 1.45 | 28.15° | 49.03 | 4.24 | 0.002 |
| 1 | 45° | 1.5 | 28.13° | 49.75 | 4.48 | 0.003 |
| 1 | 45° | 1.6 | 26.23° | 43.60 | 3.92 | 0.012 |
| 1 | 45° | 1.7 | 24.58° | 37.84 | 3.41 | 0.039 |
| 1 | 45° | 1.8 | 23.13° | 32.37 | 2.91 | 0.122 |
| 1 | 45° | 1.9 | 21.85° | 27.13 | 2.44 | 0.362 |
| 1 | 45° | 2.0 | 20.70° | 22.05 | 1.98 | 1.036 |
| 1 | 45° | 2.1 | 19.68° | 17.11 | 1.54 | 2.887 |
| 1 | 45° | 2.2 | 18.75° | 12.27 | 1.10 | 7.873 |
| 1 | 45° | 2.3 | 17.90° | 7.51 | 0.68 | 21.096 |
| 1 | 45° | 2.4 | 17.14° | 2.82 | 0.25 | 55.726 |
| 1 | 45° | 2.5 | 16.43° | - | - | - |
| 1 | 45° | 2.6 | 15.78° | - | - | - |
Claims (10)
- 외부 영역에서 광이 입사되는 제 1 기판;상기 제 1 기판의 상부면 상에 배치되는 제 1 전극;상기 제 1 기판의 상부에 배치되는 제 2 기판;상기 제 2 기판의 하부면에 배치되는 제 2 전극;상기 제 1 전극과 상기 제 2 전극 사이에 배치되는 광 변환부를 포함하고,상기 광 변환부는 교대로 배치되는 격벽부 및 수용부를 포함하고,상기 수용부는 전압의 인가에 따라 광 투과율이 변화되고,상기 격벽부의 굴절율은 상기 외부 영역의 굴절율보다 크고,상기 격벽부의 굴절율과 상기 외부 영역의 굴절율 차이는 0.3 이상인 광 경로 제어 부재.
- 제 1항에 있어서,상기 격벽부의 굴절율과 상기 외부 영역의 굴절율 차이는 0.3 내지 0.9인 광 경로 제어 부재.
- 제 1항에 있어서,상기 수용부는,상기 전압이 인가되는 경우 광 차단부로 구동하고,상기 전압이 인가되지 않는 경우 광 투과부로 구동하는 광 경로 제어 부재.
- 제 3항에 있어서,상기 격벽부로 입사되는 광은 상기 수용부를 통과하고,상기 수용부를 통과하는 광은 하기 수식을 만족하는 광 경로 제어 부재.[수식]수용부의 폭 * 0.9 < 수용부를 통과하는 광의 거리 < 수용부의 폭 * 1.7
- 제 3항에 있어서,상기 전압이 인가되지 않는 경우, 상기 격벽부로 입사되어 상기 제 2 전극 방향으로 출사되는 광 투과율은 1% 미만인 광 경로 제어 부재.
- 제 1항에 있어서,상기 수용부는,전해질; 및상기 전해질 내에 분산되는 복수의 광 흡수 입자들을 포함하는 광 경로 제어 부재.
- 제 6항에 있어서,상기 수용부에 전압이 인가되면, 상기 광 흡수 입자들은 상기 수용부 내에서 상기 제 1 전극 또는 상기 제 2 전극 방향으로 이동하는 광 경로 제어 부재.
- 제 1항에 있어서,상기 수용부의 일 끝단 및 타 끝단 중 적어도 하나의 끝단은 상기 제 1 전극 및 상기 제 2 전극과 이격하여 배치되는 광 경로 제어 부재.
- 제 1항에 있어서,상기 광 변환부와 상기 제 2 전극 사이에 배치되는 접착층을 더 포함하는 광 경로 제어 부재.
- 표시 패널; 및상기 표시 패널 상에 배치되는 광 경로 제어 부재를 포함하고,상기 광 경로 제어 부재는,외부 영역에서 광이 입사되는 제 1 기판;상기 제 1 기판의 상부면 상에 배치되는 제 1 전극;상기 제 1 기판의 상부에 배치되는 제 2 기판;상기 제 2 기판의 하부면에 배치되는 제 2 전극;상기 제 1 전극과 상기 제 2 전극 사이에 배치되는 광 변환부를 포함하고,상기 광 변환부는 교대로 배치되는 격벽부 및 수용부를 포함하고,상기 수용부는 전압의 인가에 따라 광 투과율이 변화되고,상기 격벽부의 굴절율은 상기 외부 영역의 굴절율보다 크고,상기 격벽부의 굴절율과 상기 외부 영역의 굴절율 차이는 0.3 이상인 디스플레이 장치.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202080055244.3A CN114207514B (zh) | 2019-07-30 | 2020-07-28 | 光路控制构件及包括其的显示装置 |
| EP20848661.3A EP4006620A4 (en) | 2019-07-30 | 2020-07-28 | LIGHTWAY CONTROL ELEMENT AND INDICATOR WITH THEM |
| US17/631,806 US20220276542A1 (en) | 2019-07-30 | 2020-07-28 | Light route control member and display device comprising same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2019-0092470 | 2019-07-30 | ||
| KR1020190092470A KR102774371B1 (ko) | 2019-07-30 | 2019-07-30 | 광 경로 제어 부재 및 이를 포함하는 표시 장치 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021020854A1 true WO2021020854A1 (ko) | 2021-02-04 |
Family
ID=74228742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2020/009903 Ceased WO2021020854A1 (ko) | 2019-07-30 | 2020-07-28 | 광 경로 제어 부재 및 이를 포함하는 표시 장치 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20220276542A1 (ko) |
| EP (1) | EP4006620A4 (ko) |
| KR (1) | KR102774371B1 (ko) |
| CN (1) | CN114207514B (ko) |
| WO (1) | WO2021020854A1 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114236897A (zh) * | 2021-12-14 | 2022-03-25 | 武汉华星光电技术有限公司 | 显示装置 |
| US12147139B2 (en) | 2021-12-14 | 2024-11-19 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display device having wide viewing angle in sharing mode |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112133734B (zh) * | 2020-09-29 | 2022-08-30 | 湖北长江新型显示产业创新中心有限公司 | 显示面板及显示装置 |
| CN117835736B (zh) * | 2023-12-19 | 2024-11-01 | 惠科股份有限公司 | 显示面板及显示装置 |
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| US20030016905A1 (en) * | 2001-03-21 | 2003-01-23 | Hitoshi Kondoh | Optical path element, optical switching element, spatial light modulator and image display apparatus |
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- 2020-07-28 US US17/631,806 patent/US20220276542A1/en not_active Abandoned
- 2020-07-28 CN CN202080055244.3A patent/CN114207514B/zh active Active
- 2020-07-28 WO PCT/KR2020/009903 patent/WO2021020854A1/ko not_active Ceased
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| CN114236897A (zh) * | 2021-12-14 | 2022-03-25 | 武汉华星光电技术有限公司 | 显示装置 |
| CN114236897B (zh) * | 2021-12-14 | 2022-10-04 | 武汉华星光电技术有限公司 | 显示装置 |
| US12147139B2 (en) | 2021-12-14 | 2024-11-19 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Display device having wide viewing angle in sharing mode |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4006620A1 (en) | 2022-06-01 |
| EP4006620A4 (en) | 2023-07-26 |
| CN114207514B (zh) | 2025-08-29 |
| US20220276542A1 (en) | 2022-09-01 |
| CN114207514A (zh) | 2022-03-18 |
| KR20210014414A (ko) | 2021-02-09 |
| KR102774371B1 (ko) | 2025-03-04 |
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