WO2023249226A1 - 디스플레이 장치 - Google Patents
디스플레이 장치 Download PDFInfo
- Publication number
- WO2023249226A1 WO2023249226A1 PCT/KR2023/005262 KR2023005262W WO2023249226A1 WO 2023249226 A1 WO2023249226 A1 WO 2023249226A1 KR 2023005262 W KR2023005262 W KR 2023005262W WO 2023249226 A1 WO2023249226 A1 WO 2023249226A1
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- WO
- WIPO (PCT)
- Prior art keywords
- display device
- light
- lens
- light emitting
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
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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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
Definitions
- the disclosed invention relates to a display device including a backlight unit.
- a display device is an output device that converts acquired or stored electrical information into visual information and displays it to the user.
- the backlight unit may include a bar type substrate and a plurality of point light sources provided on the substrate.
- One aspect of the disclosed invention seeks to provide a display device including a bar-type substrate and a backlight unit having uniform luminance.
- One aspect of the disclosed invention seeks to provide a display device including a backlight unit that improves luminance non-uniformity caused by differences in the spacing between two adjacent substrates and the spacing between two adjacent light sources on the substrate.
- a display device may include a liquid crystal panel and a backlight unit configured to provide light to the liquid crystal panel.
- the backlight unit includes a substrate extending in a first direction, a light emitting diode mounted on the substrate, a refractive cover covering the light emitting diode to refract light emitted from the light emitting diode, and a refractive cover to cover the refractive cover.
- the lens coupled to the substrate may include a lens whose bottom length in a second direction perpendicular to the first direction is longer than the bottom length in the first direction.
- a display device may include a liquid crystal panel and a backlight unit configured to provide light to the liquid crystal panel.
- the backlight unit includes a plurality of substrates each extending along a first direction, a plurality of substrates spaced apart from each other at a first interval along a second direction perpendicular to the first direction, and each of the plurality of substrates.
- a plurality of light emitting diodes mounted, the plurality of light emitting diodes being spaced apart from each other along the first direction at a second interval smaller than the first interval, and the plurality of light emitting diodes configured to refract light emitted from each of the plurality of light emitting diodes.
- a display device including a bar-type substrate and a backlight unit having uniform luminance can be provided.
- a display device including a backlight unit that improves luminance non-uniformity caused by differences in the spacing between two adjacent substrates and the spacing between two adjacent light sources on the substrates can be provided.
- Figure 2 shows an example of the structure of a display device according to an embodiment.
- Figure 4 shows an example of an optical sheet and a diffusion plate in a display device according to an embodiment.
- Figure 6 is an enlarged view of A in Figure 5.
- FIG. 8 shows an example of a cross section of a light emitting diode along line B-B' in FIG. 7.
- Figure 13 shows an example of the structure of a display device according to an embodiment.
- first”, “second”, etc. used in this specification may be used to describe various components, but the components are not limited by the terms, and the terms It is used only for the purpose of distinguishing one component from another.
- a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention.
- the term “and/or” includes any combination of a plurality of related stated items or any of a plurality of related stated items.
- An accommodating groove defining an accommodating space may be formed in the lens.
- the refractive cover may be spaced apart from the lens within the accommodation space.
- the length of the receiving groove in the first direction may be longer than the length of the receiving groove in the second direction.
- the substrate may include a plurality of substrates arranged to be spaced apart at a second interval along the second direction.
- the refractive cover may include a plurality of refractive covers covering each of the plurality of light emitting diodes.
- the lens may include a plurality of lenses covering each of the plurality of refractive covers.
- the second interval may be at least 50% larger than the first interval.
- the lens may include a plurality of lenses provided to cover the plurality of light emitting diodes, and a connection part connecting two or more of the plurality of lenses.
- the display device may further include a reflective sheet provided between the liquid crystal panel and the backlight unit and covering the plurality of substrates.
- a plurality of holes may be formed in the reflective sheet to allow the plurality of lenses to pass through, respectively.
- the display device may further include a plurality of reflective sheets provided between the liquid crystal panel and the backlight unit and respectively provided to correspond to the plurality of substrates.
- the plurality of lenses may pass through a plurality of holes formed in the plurality of reflective sheets.
- the refractive cover may be formed by dispensing and curing a transparent material in a liquid state.
- the light emitting diode may be mounted on the substrate using a chip on board (COB) method.
- COB chip on board
- the light emitting diode may emit blue light.
- a display device may include a liquid crystal panel and a backlight unit configured to provide light to the liquid crystal panel.
- the backlight unit includes a plurality of substrates each extending along a first direction, a plurality of substrates spaced apart from each other at a first interval along a second direction perpendicular to the first direction, and each of the plurality of substrates.
- a plurality of light emitting diodes mounted, the plurality of light emitting diodes being spaced apart from each other along the first direction at a second interval smaller than the first interval, and the plurality of light emitting diodes configured to refract light emitted from each of the plurality of light emitting diodes.
- Each of the plurality of lenses may include an accommodating groove forming an accommodating space for accommodating each of the plurality of refractive covers.
- the length of the bottom of the receiving groove in the first direction may be longer than the length in the second direction.
- the plurality of lenses may be anisotropic lenses configured to emit more light incident on the plurality of lenses in the second direction than in the first direction.
- the display device 10 may receive content including video signals and audio signals from various content sources, and output video and audio corresponding to the video signals and audio signals.
- the display device 10 may receive content data through a broadcast reception antenna or a wired cable, receive content data from a content playback device, or receive content data from a content provision server of a content provider.
- the main body 11 forms the exterior of the display device 10, and parts for the display device 10 to display an image I or perform various functions may be provided inside the main body 11.
- the main body 11 shown in FIG. 1 has a flat plate shape, but the shape of the main body 11 is not limited to that shown in FIG. 1.
- the main body 11 may have a curved plate shape.
- the screen 12 may include a non-emissive panel (eg, a liquid crystal panel) that can selectively pass or block light emitted by a back light unit (BLU).
- a non-emissive panel eg, a liquid crystal panel
- BLU back light unit
- Each of the plurality of pixels P may emit light of various brightnesses and colors. In order to emit light of various colors, each of the plurality of pixels P may include subpixels PR, PG, and PB.
- red light of the red subpixel (PR), the green light of the green subpixel (PG), and the blue light of the blue subpixel (PB) By combining the red light of the red subpixel (PR), the green light of the green subpixel (PG), and the blue light of the blue subpixel (PB), light of various brightnesses and colors is emitted from each of the plurality of pixels (P). can do.
- the display device 10 includes a backlight unit (BLU) 100, a liquid crystal panel 20 that selectively blocks or passes light emitted from the backlight unit 100, and a liquid crystal panel 20. It may include a chassis assembly supporting the backlight unit 100.
- the display device 10 includes an optical member 60 provided between the liquid crystal panel 20 and the backlight unit 100, and a reflective sheet 90 provided between the optical member 60 and the backlight unit 100. can do.
- a plurality of holes 91 corresponding to a plurality of light sources 120 may be formed in the reflective sheet 90 .
- the reflective sheet 90 may be provided in a plate shape corresponding to the size of the liquid crystal panel 20.
- the plurality of holes 91 may have a diameter larger than the outer diameter of the light source 120 to allow the light source 120 to pass through.
- the reflective sheet 90 may be provided in front of the substrate 110 so that each of the plurality of light sources 120 mounted on the substrate 110 passes through each of the plurality of holes 91.
- the reflective sheet 90 may reflect light emitted, reflected, or refracted toward the reflective sheet 90 toward the liquid crystal panel 20 .
- the first polarizing film 21 and the second polarizing film 29 are provided outside the first and second transparent substrates 22 and 28.
- the first polarizing film 21 and the second polarizing film 29 can each pass certain polarized light and block (reflect or absorb) other polarized light.
- the first polarizing film 21 may pass polarized light in the first direction and block (reflect or absorb) other polarized light.
- the second polarizing film 29 may pass polarized light in the second direction and block (reflect or absorb) other polarized light.
- the first direction and the second direction may be perpendicular to each other. Therefore, the polarized light that has passed through the first polarizing film 21 cannot directly pass through the second polarizing film 29.
- the color filter 27 may be provided inside the second transparent substrate 28.
- the color filter 27 may include, for example, a red filter 27R that passes red light, a green filter 27G that passes green light, and a blue filter 27B that passes blue light. Additionally, the red filter 27R, green filter 27G, and blue filter 27B may be arranged in parallel with each other.
- the area occupied by the color filter 27 corresponds to the pixel P described above.
- the area occupied by the red filter 27R corresponds to the red subpixel PR
- the area occupied by the green filter 27G corresponds to the green subpixel PG
- the area occupied by the blue filter 27B corresponds to the green subpixel PG.
- the pixel electrode 23 may be provided inside the first transparent substrate 22, and the common electrode 26 may be provided inside the second transparent substrate 28.
- the pixel electrode 23 and the common electrode 26 are made of a metal material that conducts electricity, and can generate an electric field to change the arrangement of the liquid crystal molecules 115a constituting the liquid crystal layer 25, which will be described below. there is.
- the display device 10 may include an optical member 60 provided between the liquid crystal panel 20 and the backlight unit 100.
- the optical member 60 includes a diffusion plate 70 provided to uniformly diffuse the light emitted from the backlight unit 100, and an optical element provided in front of the diffusion plate 70 to improve the luminance of the emitted light. It may include a sheet 80.
- the diffusion plate 70 may be provided in front of the backlight unit 100.
- the diffusion plate 70 can evenly disperse the light emitted from the light source 120 of the backlight unit 100.
- the optical sheet 80 may include various sheets to improve luminance and uniformity of luminance.
- the optical sheet 80 may include a light conversion sheet 81, a diffusion sheet 82, a prism sheet 83, a reflective polarizing sheet 84, etc.
- the optical sheet 80 is not limited to the sheet or film shown in FIG. 4 and may include more various sheets or films, such as a protective sheet.
- FIG. 5 is a diagram illustrating a backlight unit in a display device according to an embodiment.
- Figure 6 is an enlarged view of A in Figure 5.
- the X direction shown in FIGS. 5 and 6 may point to a first direction
- the Y direction may point to a second direction.
- the backlight unit 100 may include a substrate 110 extending along a first direction (X) and a plurality of light sources 120 spaced apart from each other along the first direction on the substrate 110.
- the backlight unit 100 may include a plurality of substrates 110 spaced apart from each other along a second direction (Y) perpendicular to the first direction.
- the substrate 110 extending along one direction is referred to as a bar type substrate.
- the two light sources 121 and 122 adjacent in the first direction (X) are separated by a first gap ( It can be spaced apart by d1).
- the plurality of light sources 120 includes a first light source 121 and a second light source 122 mounted on the first substrate 111, a third light source 123 and a second light source 122 mounted on the second substrate 112. It may include 4 light sources (124).
- the first light source 121 and the third light source 123 corresponding in the second direction (Y) may be spaced apart by a second distance (d2).
- the second light source 122 and the fourth light source 124 may be spaced apart by a second distance d2.
- the plurality of light sources 120 may be arranged to have a first pitch corresponding to a first interval d1 along the first direction (X), and a second interval (d1) along the second direction (Y). It can be arranged to have a second pitch corresponding to d2).
- the first light source 121 and the second light source 122 mounted in the first substrate 111 may be spaced apart by a first distance d1 in the first direction (X).
- the third light source 123 and the fourth light source 124 mounted in the second substrate 112 may be spaced apart by a first distance d1 in the first direction (X).
- a backlight unit including a plurality of bar type substrates and a plurality of light sources mounted on the plurality of bar type substrates is mounted on one substrate corresponding to the size of the liquid crystal panel and this substrate. It may have a relatively small number of light sources compared to a backlight unit including a plurality of light sources.
- the gap between the substrates may be increased.
- the gap between the substrates in the second direction (Y) may be provided to be larger than the gap in the first direction (X) between light sources mounted in each substrate.
- the gap between the substrates is larger than the gap between light sources within the substrate, the luminance uniformity of the backlight unit may deteriorate. Since the gap between two adjacent substrates is larger than the gap between two adjacent light sources within the substrate, there is a lack of luminance between the two substrates, and dark mura may occur between the two substrates.
- FIG. 7 is a diagram illustrating a substrate, a light emitting diode, a refractive cover, and a lens in a display device according to an embodiment.
- FIG. 8 shows an example of a cross section of a light emitting diode along line B-B' in FIG. 7.
- Figure 9 is a cross-sectional view taken along line BB' in Figure 7.
- Figure 10 is a diagram showing the length of the bottom of the lens and the length of the bottom of the receiving groove in the display device according to one embodiment.
- FIG. 11 shows the light source shown in FIG. 7 with the lens separated from the light emitting diode and the refractive cover.
- the backlight unit 100 may include a bar-type substrate 110 and a light source 120 provided on the substrate 110.
- the light source 120 may include a light emitting diode 130 mounted on the substrate 110, a refractive cover 140 that covers the light emitting diode 130, and a lens 150 that covers the refractive cover 140. there is.
- the light emitting diode 130 may be directly mounted on the substrate 110. Specifically, the light emitting diode 130 can be directly mounted on the substrate 110 using a COB (Chip On Board) method without a separate package. The light emitting diode 130 may be configured to emit blue light.
- COB Chip On Board
- the light emitting diode 130 may include a transparent substrate 135, an n-type semiconductor layer 133, and a p-type semiconductor layer 132. Additionally, a multi quantum well (MQW) layer 134 is formed between the n-type semiconductor layer 133 and the p-type semiconductor layer 132.
- MQW multi quantum well
- the transparent substrate 135 may be the base of a pn junction capable of emitting light.
- the transparent substrate 135 may include, for example, sapphire (Al 2 O 3 ), which has a crystal structure similar to that of the semiconductor layers 133 and 132.
- a pn junction By bonding the n-type semiconductor layer 133 and the p-type semiconductor layer 132, a pn junction can be implemented.
- a depletion region may be formed between the n-type semiconductor layer 133 and the p-type semiconductor layer 132. In the depletion layer, electrons of the n-type semiconductor layer 133 and holes of the p-type semiconductor layer 132 may recombine. Light can be emitted by recombination of electrons and holes.
- the n-type semiconductor layer 133 may include, for example, n-type gallium nitride (n-type GaN). Additionally, the p-type semiconductor layer 132 may also include, for example, p-type gallium nitride (p-type GaN).
- the energy band gap of gallium nitride (GaN) is approximately 3.4 eV (electronvolt), which can emit light with a wavelength shorter than 400 nm. Accordingly, deep blue or ultraviolet rays may be emitted from the junction of the n-type semiconductor layer 133 and the p-type semiconductor layer 132.
- the n-type semiconductor layer 133 and the p-type semiconductor layer 132 are not limited to gallium nitride, and various semiconductor materials may be used depending on the light required.
- the first electrode 131a of the light emitting diode 130 is in electrical contact with the p-type semiconductor layer 132, and the second electrode 131b is in electrical contact with the n-type semiconductor layer 133.
- the first electrode 131a and the second electrode 131b may function not only as electrodes but also as reflectors that reflect light.
- Electrons and holes can recombine in the depletion layer formed between the p-type semiconductor layer 132 and the n-type semiconductor layer 133. At this time, while the electrons and holes are recombining, the energy of the electrons and holes (eg, kinetic energy and potential energy) may be converted into light energy. In other words, when electrons and holes recombine, light can be emitted.
- the energy gap (energy band gap) of the quantum well layer 134 is smaller than the energy gap of the p-type semiconductor layer 132 and/or the n-type semiconductor layer 133. As a result, holes and electrons can each be trapped in the quantum well layer 134.
- quantum well layer 134 From the quantum well layer 134, light having a wavelength corresponding to the energy gap of the quantum well layer 134 may be emitted.
- quantum well layer 134 may emit blue light between 420 nm and 480 nm.
- the quantum well layer 134 may correspond to a light emitting layer that emits blue light.
- a first reflective layer 136 is provided on the outside of the transparent substrate 135 (the upper part of the transparent substrate as shown in FIG. 8). That is, the first reflective layer 136 may be disposed on top of the light emitting layer 134.
- a second reflection layer 137 is provided below the p-type semiconductor layer 132 (the lower part of the p-type semiconductor layer as shown in FIG. 8). In this way, the transparent substrate 135, the n-type semiconductor layer 133, the quantum well layer 134, and the p-type semiconductor layer 132 will be disposed between the first reflection layer 136 and the second reflection layer 137. You can.
- the first reflection layer 136 and the second reflection layer 137 may reflect light having a wavelength within a specific wavelength range and may pass light having a wavelength outside the specific wavelength range.
- the first reflection layer 136 and the second reflection layer 137 may reflect blue light having a wavelength between 420 nm and 480 nm emitted from the quantum well layer 134.
- the backlight unit 100 may include a refractive cover 140 that covers the light emitting diode 130 to refract light emitted from the light emitting diode 130.
- the refractive cover 140 may be formed by dispensing a transparent material in a liquid state onto the light emitting diode 130 and then hardening it.
- the transparent material may include silicon.
- the refractive cover 140 may be formed by dispensing and curing the liquid transparent material at one point or multiple points on the light emitting diode 130.
- the refractive cover 140 may refract light emitted from the light emitting diode 130.
- the refractive cover 140 may be provided to surround the light emitting diode 130. In other words, the refractive cover 140 can be referred to as a silicone dome.
- the backlight unit 100 may include a lens 150 provided to cover the refractive cover 140 .
- the lens 150 may include an accommodating groove 152 that is recessed upward from its bottom 153, and an accommodating space 151 formed inside the accommodating groove 152.
- the lens 150 can accommodate the refractive cover 140 inside the receiving space 151 formed by the receiving groove 152.
- the receiving space 151 may be provided larger than the volume of the refractive cover 140. Accordingly, within the accommodation space 151, the refractive cover 140 may be spaced apart from the lens 150.
- dark mura can be eliminated or reduced by including a light source 120 configured to emit a sufficient amount of light toward a space between the substrates. That is, the luminance uniformity of the backlight unit 100 can be improved.
- the package lens 250 is advantageous in terms of productivity because it can be formed to cover a plurality of refractive covers 140 in a single process.
- the package lens 250 may be coupled to the substrate 110 by coupling the connection portion 260 to the substrate 110.
- the package lens 250 may be coupled to the substrate 110 by attaching the connection portion 260 to the substrate 110 with an adhesive.
- Each of the plurality of lenses 251, 252, 253, and 254 included in the package lens 251 may have a structure similar to the lens 150 described above. That is, the bottom surface of each of the plurality of lenses 251, 252, 253, and 254 may be provided with a length in the second direction (Y) that is longer than the length in the first direction (X). Additionally, the bottom of each receiving groove of the plurality of lenses 251, 252, 253, and 254 may be provided with a length in the first direction (X) longer than a length in the second direction (Y).
- Figure 13 shows an example of the structure of a display device according to an embodiment.
- the display device 10 may include a plurality of substrates 110 and a plurality of reflective sheets 90a, each corresponding to a plurality of substrates 110.
- Each of the plurality of reflective sheets 90a may extend along the direction in which the substrate 110 extends.
- the reflective sheet 90a may extend along a first direction (X, see FIG. 5).
- the reflective sheet 90a may be provided in a shape corresponding to the substrate 110 to cover the substrate 110.
- the reflective sheet 90a may have a plurality of holes 91a.
- Each of the plurality of holes 91a may have a diameter larger than the outer diameter of the light source 120 so that the light source 120 can pass through.
- each of the plurality of holes 91a may have a diameter larger than the outer diameter of the lens 150 so that the lens 150 can pass through each of the plurality of holes 91a.
- the reflective sheet 90a may be provided in front of the substrate 110 so that each of the plurality of light sources 120 mounted on the substrate 110 passes through each of the plurality of holes 91a.
- the reflective sheet 90a may reflect light emitted, reflected, or refracted toward the liquid crystal panel 20.
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Abstract
Description
Claims (14)
- 액정 패널; 및상기 액정 패널에 광을 방출하도록 구성되는 백라이트 유닛; 을 포함하고,상기 백라이트 유닛은,제1방향을 따라 연장되는 기판과,상기 기판에 마련되는 발광 다이오드와,상기 발광 다이오드로부터 방출되는 광을 굴절시키도록 상기 발광 다이오드 상에 마련되는 굴절 커버 및상기 기판 및 상기 굴절 커버 상에 마련되는 렌즈로서, 상기 제1방향으로의 제1길이가 상기 제1방향에 수직한 제2방향으로의 제2길이보다 짧은 밑면을 포함하는 렌즈를 포함하는 디스플레이 장치.
- 제1항에 있어서,상기 렌즈에는, 수용 공간을 정의하는 수용홈이 형성되고,상기 굴절 커버는 상기 수용 공간 내에 마련되는 디스플레이 장치.
- 제2항에 있어서,상기 굴절 커버는, 상기 수용 공간 내에서 상기 렌즈와 이격되는 디스플레이 장치.
- 제2항에 있어서,상기 수용홈의 상기 제1방향으로의 길이는, 상기 수용홈의 상기 제2방향으로의 길이보다 길게 마련되는 디스플레이 장치.
- 제1항에 있어서,상기 렌즈는, 광을 상기 제2방향으로 상기 제1방향보다 많이 방출하도록 구성되는 비등방성 렌즈인 디스플레이 장치.
- 제1항에 있어서,상기 발광 다이오드는 상기 제1방향을 따라 제1간격으로 이격되게 배치되는 복수의 발광 다이오드를 포함하고,상기 기판은 상기 제2방향을 따라 제2간격으로 이격되게 배치되는 복수의 기판을 포함하는 디스플레이 장치.
- 제6항에 있어서,상기 굴절 커버는 상기 복수의 발광 다이오드 각각을 커버하는 복수의 굴절 커버를 포함하고,상기 렌즈는 상기 복수의 굴절 커버 각각을 커버하는 복수의 렌즈를 포함하는 디스플레이 장치.
- 제6항에 있어서,상기 제2간격은 상기 제1간격보다 적어도 50%이상 크게 마련되는 디스플레이 장치.
- 제6항에 있어서,상기 렌즈는, 상기 복수의 발광 다이오드를 커버하도록 마련되는 복수의 렌즈와, 두 개 이상의 상기 복수의 렌즈를 연결하는 연결부를 포함하는 디스플레이 장치.
- 제7항에 있어서,상기 액정 패널과 상기 백라이트 유닛 사이에 마련되고, 상기 복수의 기판을 커버하는 반사 시트; 를 더 포함하고,상기 반사 시트에는, 상기 복수의 렌즈가 각각 통과하도록 복수의 홀이 형성되는 디스플레이 장치.
- 제7항에 있어서,상기 액정 패널과 상기 백라이트 유닛 사이에 마련되고, 상기 복수의 기판과 각각 대응되게 마련되는 복수의 반사 시트; 를 더 포함하고,상기 복수의 렌즈는 상기 복수의 반사 시트에 형성된 복수의 홀을 통과하는 디스플레이 장치.
- 제1항에 있어서,상기 굴절 커버는, 액체 상태의 투명 물질이 디스펜싱 및 경화됨으로써 형성되는 디스플레이 장치.
- 제1항에 있어서,상기 발광 다이오드는 상기 기판에 칩온보드(Chip On Board, COB) 방식으로 실장되는 디스플레이 장치.
- 제1항에 있어서,상기 발광 다이오드는 청색 계열의 광을 방출하는 디스플레이 장치.
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| CN202380024730.2A CN118786386A (zh) | 2022-06-24 | 2023-04-19 | 显示装置 |
| EP23827346.0A EP4465123A4 (en) | 2022-06-24 | 2023-04-19 | DISPLAY DEVICE |
| US18/195,534 US12230746B2 (en) | 2022-06-24 | 2023-05-10 | Display apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20220077848 | 2022-06-24 | ||
| KR10-2022-0077848 | 2022-06-24 | ||
| KR1020220106277A KR20240001001A (ko) | 2022-06-24 | 2022-08-24 | 디스플레이 장치 |
| KR10-2022-0106277 | 2022-08-24 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| US18/195,534 Continuation US12230746B2 (en) | 2022-06-24 | 2023-05-10 | Display apparatus |
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| WO2023249226A1 true WO2023249226A1 (ko) | 2023-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/KR2023/005262 Ceased WO2023249226A1 (ko) | 2022-06-24 | 2023-04-19 | 디스플레이 장치 |
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| WO (1) | WO2023249226A1 (ko) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101464654B1 (ko) * | 2014-07-30 | 2014-11-24 | 나만호 | 액정표시장치 |
| KR20180036272A (ko) * | 2016-09-30 | 2018-04-09 | 엘지이노텍 주식회사 | 광학 렌즈, 광원 모듈 및 이를 구비한 라이트 유닛 |
| KR20190109221A (ko) * | 2018-03-15 | 2019-09-25 | 서울반도체 주식회사 | 디스플레이 장치, 백라이트 유닛, 발광모듈 및 렌즈 |
| KR20200034471A (ko) * | 2018-09-21 | 2020-03-31 | 삼성전자주식회사 | 백라이트 장치용 엘이디 렌즈 어레이 및 이를 구비한 디스플레이 장치 |
| KR20220056069A (ko) * | 2020-10-27 | 2022-05-04 | 삼성전자주식회사 | 디스플레이 장치 및 그 광원 장치 |
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2023
- 2023-04-19 WO PCT/KR2023/005262 patent/WO2023249226A1/ko not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101464654B1 (ko) * | 2014-07-30 | 2014-11-24 | 나만호 | 액정표시장치 |
| KR20180036272A (ko) * | 2016-09-30 | 2018-04-09 | 엘지이노텍 주식회사 | 광학 렌즈, 광원 모듈 및 이를 구비한 라이트 유닛 |
| KR20190109221A (ko) * | 2018-03-15 | 2019-09-25 | 서울반도체 주식회사 | 디스플레이 장치, 백라이트 유닛, 발광모듈 및 렌즈 |
| KR20200034471A (ko) * | 2018-09-21 | 2020-03-31 | 삼성전자주식회사 | 백라이트 장치용 엘이디 렌즈 어레이 및 이를 구비한 디스플레이 장치 |
| KR20220056069A (ko) * | 2020-10-27 | 2022-05-04 | 삼성전자주식회사 | 디스플레이 장치 및 그 광원 장치 |
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