WO2021080048A1 - 디스플레이 디바이스 - Google Patents
디스플레이 디바이스 Download PDFInfo
- Publication number
- WO2021080048A1 WO2021080048A1 PCT/KR2019/014137 KR2019014137W WO2021080048A1 WO 2021080048 A1 WO2021080048 A1 WO 2021080048A1 KR 2019014137 W KR2019014137 W KR 2019014137W WO 2021080048 A1 WO2021080048 A1 WO 2021080048A1
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- WO
- WIPO (PCT)
- Prior art keywords
- base
- frame
- bar
- display device
- display panel
- 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
- 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
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
Definitions
- the present invention relates to a display device.
- LCD Liquid Crystal Display
- ELD Electro luminescent Display
- VFD Vauum Fluorescent Display
- OLED Organic Light-Emitting Diode
- a liquid crystal panel of an LCD includes a TFT substrate and a color filter substrate facing each other with a liquid crystal layer and a liquid crystal layer therebetween, and an image can be displayed using light provided from the backlight unit.
- Another object may be to provide a display device with improved light efficiency of a backlight unit.
- Another object may be to provide a display device capable of improving image quality.
- Another object may be to provide a display device capable of improving the space efficiency of a backlight unit.
- Another object may be to provide a display device capable of improving productivity.
- a display panel A frame positioned behind the display panel; A light source positioned between the display panel and the frame and providing light to the display panel; In addition, an optical layer positioned between the display panel and the light source and through which light provided by the light source transmits.
- the supporter located between the frame and the optical layer, and mounted on the frame, including a supporter for supporting the optical layer, the supporter: a base that extends elongated and placed on the frame; A bridge extending from one end of the base to the other end of the base, and spaced apart from the base at an upper side of the base; A tower extending from the bridge toward the optical layer; A shaft extending from a lower surface of the base toward the frame; Further, it provides a display device including a bar extending from the axis in a direction crossing the longitudinal direction of the base.
- the frame includes: a flat plate; And, the flat panel includes an inclined portion extending toward the display panel and having an inclination, the flat portion: a fixed recessed portion recessed from the rear surface of the flat plate toward the front surface of the flat plate portion: And, the fixed recessed portion It is formed, cut-out so that the bar of the supporter passes, and may include a bar slot crossing the longitudinal direction of the base and the longitudinal direction of the bar.
- an angle of intersection formed by the base and the bar may be about 21 degrees.
- an angle of intersection formed between the base and the bar slot may be about 14 degrees.
- an angle of intersection formed between the bar and the bar slot may be about 35 degrees.
- the supporter further includes: a stopper formed on an outer circumferential surface of the shaft and positioned between the base and the bar, and the frame is: formed in the fixed recess, A stopper slot extending long in a direction crossing the bar slot, and shorter than the length of the bar slot, may further include a stopper slot corresponding to the stopper.
- an angle of intersection formed between the stopper slot and the bar slot may be about 35 degrees.
- the supporter is placed in the fixed recess, and when the bar of the supporter is inserted into the bar slot and rotates, the stopper of the supporter may contact the stopper slot.
- the frame includes: a first protrusion hole formed to be spaced apart from one end of the stopper slot in a longitudinal direction of the stopper slot; And, in the longitudinal direction of the stopper slot, comprising a second protruding hole formed to be spaced apart from the other end of the stopper slot, the supporter: located adjacent to one end of the bar, protruding toward the base from the bar A first protrusion inserted into the first protrusion hole; In addition, it may include a second protrusion positioned adjacent to the other end of the bar, protruding from the bar toward the base, and inserted into the second protruding hole.
- the supporter further includes: a bottom forming a step difference from a bottom surface of the base at a bottom surface of the base, wherein the bottom is formed by the fixing recessed portion in the front surface of the plate portion. Can be supported.
- the present invention further comprising a reflective sheet positioned on the frame and reflecting light provided from the light source toward the display panel, wherein the reflective sheet is formed of the frame by the bottom.
- a part is inserted between the front surface and the gap formed in the lower surface of the base, and the base of the supporter may press the upper surface of the reflective sheet.
- a display device having improved light efficiency of a backlight unit may be provided.
- a display device capable of improving image quality may be provided.
- a display device capable of improving space efficiency of a backlight unit may be provided.
- 1 to 6 are diagrams showing examples of a display device related to the present invention.
- FIGS. 7 to 14 are diagrams showing examples of a display device according to an embodiment of the present invention.
- a liquid crystal panel (LCD) is used as an example for a display panel, but the display panel applicable to the present invention is not limited to the liquid crystal panel, and the field emission display panel (Field Emission Display) is described as an example. , FED), or an organic display panel (Organic Light Emitting Diode, OLED).
- FED Field Emission Display
- OLED Organic Light Emitting Diode
- the display device 100 includes a first long side (LS1), a second long side (LS2) opposite to the first long side (LS1), and a first long side (LS1). And a first short side SS1 adjacent to the second long side LS2 and a second short side SS2 opposite to the first short side SS1.
- the first short side area SS1 is referred to as a first side area
- the second short side area SS2 is referred to as a second side area opposite to the first side area
- the first long side area LS1 is referred to as a third side area adjacent to the first side area and the second side area and positioned between the first side area and the second side area
- the second long side area ( LS2) may be referred to as a fourth side area adjacent to the first side area and the second side area, located between the first side area and the second side area, and facing the third side area.
- first and second long sides LS1 and LS2 are illustrated and described as being longer than the first and second short sides SS1 and SS2, but the first and second long sides LS1 and LS2 It may also be possible when the length of LS2) is approximately the same as the lengths of the first and second short sides SS1 and SS2.
- the first direction (DR1) is a direction parallel to the long side (LS1, LS2) of the display device 100
- the second direction (DR2) is a direction of the display device 100. It may be in a direction parallel to the short side (SS1, SS2).
- the third direction DR3 may be a direction perpendicular to the first direction DR1 and/or the second direction DR2.
- the first direction DR1 and the second direction DR2 may be collectively referred to as a horizontal direction.
- the third direction DR3 may be referred to as a vertical direction.
- the side on which the display device 100 displays an image may be referred to as a front surface or front side.
- a side in which an image cannot be observed may be referred to as a rear or back side or a rear surface or a rear side or a back surface or back side.
- the first long side LS1 side may be referred to as a top or upper surface or upper side.
- the second long side LS2 side may be referred to as a bottom or lower side.
- the first short side (SS1) side can be called a right or right side
- the second short side (SS2) side can be called a left or left side. have.
- the first long side LS1, the second long side LS2, the first short side SS1, and the second short side SS2 may be referred to as edges of the display device 100.
- a point where the first long side LS1, the second long side LS2, the first short side SS1, and the second short side SS2 meet each other may be referred to as a corner.
- a point where the first long side LS1 and the first short side SS1 meet is the first corner C1
- the point where the first long side LS1 and the second short side SS2 meet is the second corner C2.
- the second short side (SS2) and the second long side (LS2) meet at the third corner (C3)
- the second long side (LS2) and the first short side (SS1) meet at the fourth corner (C4) Can be.
- the direction from the first short side SS1 to the second short side SS2 or the direction from the second short side SS2 to the first short side SS1 may be referred to as a left and right direction (LR).
- a direction from the first long side LS1 to the second long side LS2 or a direction from the second long side LS2 to the first long side LS1 may be referred to as an up and down direction (UD).
- the display panel 110 is positioned in front of the display device 100 and may display an image.
- the display panel 110 may include a plurality of pixels and may output an image according to color, brightness, and saturation for each pixel.
- the display panel 110 may be divided into an active area displaying an image and an inactive area not displaying an image.
- the display panel 110 may include a front substrate and a rear substrate facing each other with a liquid crystal layer therebetween.
- the front substrate may include a plurality of pixels including red (R), green (G), and blue (B) subpixels.
- the front substrate may generate a color corresponding to red, green, or blue according to a control signal.
- the rear substrate may include switching elements.
- the rear substrate can switch the pixel electrode.
- the pixel electrode may change the molecular arrangement of the liquid crystal layer according to a control signal applied from the outside.
- the liquid crystal layer may include a plurality of liquid crystal molecules. The arrangement of the liquid crystal molecules may be changed according to the voltage difference generated between the pixel electrode and the common electrode.
- the liquid crystal layer may transmit light provided from the backlight unit 120 to the front substrate.
- the front cover 105 may cover at least some of the front and side surfaces of the display panel 110.
- the front cover 105 may have a rectangular frame shape with an empty center.
- the front cover 105 may be divided into a front cover and a side cover. That is, it means that it can be divided into a front cover positioned on the front side of the display panel 110 and a side cover positioned on the side side of the display panel 110.
- the front cover and side cover can be configured separately. Either of the front cover and the side cover may be omitted. For example, for the purpose of elaborate design, it means that there may be a case where the front cover does not exist and only the side cover exists.
- the guide panel 117 may be located behind the display panel 110.
- the guide panel 117 may support a part of the rear surface of the display panel 110.
- the guide panel 117 may contact the outer periphery of the display panel 110.
- the guide panel 117 may be coupled to the frame 130.
- the backlight unit 120 may be located behind the display panel 110.
- the backlight unit 120 may include a plurality of light sources.
- the backlight unit 120 may be a direct type or an edge type.
- a light guide unit or a light guide panel (LGP) may be further included.
- the backlight unit 120 may be located in front of the frame 130.
- a plurality of light sources may be disposed on the front side of the frame 130, and this may be collectively referred to as a direct type back light unit.
- the backlight unit 120 may be driven by a full driving method or a partial driving method such as local dimming or impulsive.
- the backlight unit 120 may include an optical sheet 125 and an optical layer 123.
- the optical sheet 125 may disperse light from a light source.
- the optical sheet 125 may be composed of a plurality of layers.
- the optical sheet 125 may include at least one prism sheet and/or at least one diffusion sheet.
- the optical sheet 125 may include at least one coupling portion 125d.
- the coupling portion 125d may be coupled to the front cover 105, the frame 130 and/or the back cover 150. That is, it means that the coupling portion 125d may be directly coupled to the front cover 105, the frame 130 and/or the back cover 150.
- the coupling portion 125d may be coupled to a structure coupled to the front cover 105, the frame 130 and/or the back cover 150. That is, it means that the coupling portion 125d may be indirectly coupled to the front cover 105, the frame 130 and/or the back cover 150.
- the optical layer 123 may include a light source or the like. The specific content of the optical layer 123 will be described in a corresponding part.
- the frame 130 may support components of the display device 100.
- the backlight unit 120 or the like may be coupled to the frame 130.
- the frame 130 may be made of a metal material such as an aluminum alloy.
- the back cover 150 may be located behind the display device 100.
- the back cover 150 may protect the internal structure from the outside. At least a portion of the back cover 150 may be coupled to the frame 130 and/or the front cover 105.
- the back cover 150 may be an injection product made of a resin material.
- the backlight unit 120 includes an optical layer 123 including a substrate 122, at least one optical assembly 124, a reflective sheet 126 and a diffusion plate 129, and an optical layer ( It may include an optical sheet 125 positioned in front of the 123).
- the configuration of the backlight unit 120 is not limited thereto, and any one or more of them may be omitted.
- the substrate 122 may be configured in the form of a plurality of straps extending in a first direction and spaced apart by a predetermined distance in a second direction orthogonal to the first direction.
- At least one optical assembly 124 may be mounted on the substrate 122.
- An electrode pattern for connecting the adapter and the optical assembly 124 may be formed on the substrate 122.
- the electrode pattern may be a carbon nano tube (CNT) electrode pattern.
- the substrate 122 may be made of at least one of polyethylene terephthalate (PET), glass, polycarbonate (PC), and silicon.
- the substrate 122 may be a printed circuit board (PCB).
- the optical assembly 124 may be disposed on the substrate 122 with a predetermined distance in the first direction.
- the diameter of the optical assembly 124 may be larger than the width of the substrate 122. That is, the diameter of the optical assembly 124 may be larger than the length of the substrate 122 in the second direction.
- the light assembly 124 may be a light emitting diode (LED) chip or a light emitting diode package including at least one light emitting diode chip.
- LED light emitting diode
- the light assembly 124 may be composed of a colored LED or a white LED that emits at least one color among colors such as red, blue, and green.
- the colored LED may include at least one of a red LED, a blue LED, and a green LED.
- a light source included in the light assembly 124 may be a chip on board (COB) type.
- the COB type may be a form in which an LED chip as a light source is directly coupled to the substrate 122. This can simplify the manufacturing process. In addition, it is possible to lower the resistance, thereby reducing the energy lost as heat. That is, it means that the power efficiency of the optical assembly 124 can be increased.
- the COB type can provide brighter lighting.
- the COB type can provide a thinner thickness and lighter weight than the conventional one.
- the reflective sheet 126 may be positioned on the front surface of the substrate 122.
- the reflective sheet 126 may have a through hole 235, and the optical assembly may be inserted into the through hole 235.
- the reflective sheet 126 may reflect light provided from the optical assembly 124 forward. In addition, the reflective sheet 126 may reflect light reflected from the diffuser plate 129 toward the diffuser plate 129 again.
- the reflective sheet 126 may include at least one of a reflective material, a metal and a metal oxide.
- the reflective sheet 126 may include a metal and/or a metal oxide having a high reflectivity such as at least one of aluminum (Al), silver (Ag), gold (Au), and titanium dioxide (TiO2). I can.
- the reflective sheet 126 may be formed by depositing and/or coating a metal or metal oxide on the substrate 122. Ink including a metallic material may be printed on the reflective sheet 126. A vapor deposition layer using a vacuum deposition method such as a thermal evaporation method, an evaporation method, or a sputtering method may be formed on the reflective sheet 126. A coating layer and/or a printing layer using a printing method, a gravure coating method, or a silk screen method may be formed on the reflective sheet 126.
- An air gap may be positioned between the reflective sheet 126 and the diffusion plate 129.
- the air gap may allow light emitted from the optical assembly 124 to spread widely.
- a supporter 200 may be positioned between the reflective sheet 126 and the diffusion plate 129.
- the air gap may be referred to as an optical gap.
- Resin may be deposited on the optical assembly 124 and/or the reflective sheet 126.
- the resin may diffuse light emitted from the optical assembly 124.
- the diffusion plate 129 may diffuse light emitted from the optical assembly 124 upward.
- the optical sheet 125 may be positioned in front of the diffusion plate 129.
- the rear surface of the optical sheet 125 may face the diffusion plate 129, and the front surface of the optical sheet 125 may face the rear surface of the display panel 110.
- the optical sheet 125 may include at least one or more sheets. Specifically, the optical sheet 125 may include one or more prism sheets and/or one or more diffusion sheets. A plurality of sheets included in the optical sheet 125 may be adhered and/or adhered to each other.
- the optical sheet 125 may be composed of a plurality of sheets having different functions.
- the optical sheet 125 may include first to third optical sheets 125a to 125c.
- the first optical sheet 125a may function as a diffusion sheet
- the second and third optical sheets 125b and 125c may function as a prism sheet.
- the number and/or position of the diffusion sheet and the prism sheet may be changed.
- the diffusion sheet can prevent the light emitted from the diffusion plate from being partially concentrated, thereby making the distribution of light more uniform.
- the prism sheet may collect light emitted from the diffusion sheet so that the light is vertically incident on the display panel 110.
- the coupling portion 125d may be formed on at least one of a side or an edge of the optical sheet 125.
- the coupling portion 125d may be formed on at least one of the first to third optical sheets 125a to 125c.
- the coupling portion 125d may be formed on the long side or edge of the optical sheet 125.
- the coupling portion 125d formed on the first long side and the coupling portion 125d formed on the second long side may be asymmetric. For example, this means that the positions and/or the number of the coupling portions 125d of the first long side and the coupling portions 125d of the second long side may be different from each other.
- a substrate 122 including a plurality of straps extending in a first direction and spaced apart by a predetermined distance in a second direction orthogonal to the first direction may be provided on the frame 130.
- One side of the plurality of substrates 122 may be connected to the wiring electrode 232.
- the wiring electrode 232 may extend in the second direction.
- the wiring electrode 232 may be connected to one side of the substrate 122 at regular intervals in the second direction.
- a wiring hole 234 may be formed at one end of the wiring electrode 232.
- the wiring hole 234 may be a fine hole penetrating the frame 130.
- the wiring electrode 232 may extend to the rear surface of the frame 130 through the wiring hole 234. Through the wiring hole 234, the wiring electrode 232 may be electrically connected to an adapter (not shown) located at the rear of the frame 130.
- the optical assembly 124 may be mounted on the substrate 122 with a predetermined distance in the first direction.
- the diameter of the optical assembly 124 may be larger than the width of the substrate 122 in the second direction.
- the frame 130 may include a flat plate portion 132 and an inclined portion 133.
- the flat plate 132 may have a plate shape.
- the inclined portion 133 may have a constant inclination from the flat portion 132 and may extend forward from the flat portion 132.
- the frame 130 may have a tub shape as a whole.
- the reflective sheet 126 may correspond to the shape of the frame 130 and may have a tub shape as a whole.
- a space may be formed between the inclined portion 133 and the reflective sheet 126.
- the substrate 122 may be mounted or disposed on the flat plate portion 132.
- a plurality of substrates 122 may be sequentially disposed.
- the plurality of substrates 122 may be spaced apart from each other.
- the first substrate 122A may extend long in the left-right direction LR of the frame 130 and may be disposed in the left-right direction LR of the frame 130 in the length direction.
- the second substrate 122B may be elongated in the left-right direction LR of the frame 130, and may be mounted on the frame 130 by being spaced apart from the first substrate 122A.
- the third substrate 122C may be elongated in the left and right direction LR of the frame 130, and may be mounted on the frame 130 by being spaced apart from the second substrate 122B.
- the spacing between the substrates 122 may vary depending on the number of pixels of the display panel 110 (refer to FIG. 2 ). For example, the distance between the substrates 122 for providing light to the display panel 110 implementing 4K image quality, rather than the distance between the substrates 122 for providing light to the display panel 110 implementing 8K image quality.
- the gap may be small.
- the number of pixels of the display panel 110 increases or the image quality that can be realized by the display panel 110 increases, the light transmittance of the display panel 110 may be low.
- a large number of substrates 122 may be disposed in order to increase the luminance of light provided by the backlight unit 120 (see FIG. 3 ).
- the reflective sheet 126 may include through holes 235.
- the plurality of through holes 235 may correspond to the number of the plurality of optical assemblies 124.
- the reflective sheet 126 may be placed on the frame 130 and/or the substrate 122. In this case, the lenses 124b of the plurality of optical assemblies 124 may be inserted into the plurality of through holes 235 to protrude onto the reflective sheet 126.
- the reflective sheet 126 may be coupled or fixed on the frame 130 by the fixing member 202.
- the supporter 200 may be mounted on the reflective sheet 126.
- the coupling ribs 130H and 130V may be formed on the upper end of the inclined portion 133 of the frame 130, and the reflective sheet 126 has coupling holes VH and HH so that the ribs 130H and 130V are It can be inserted into the coupling hole (VH, HH). Accordingly, the reflective sheet 126 may be fixed on the frame 130.
- the guide panel 117 is positioned on the outer periphery of the reflective sheet 126 and may be coupled to the frame 130.
- the guide panel 117 may support the display panel 110 (refer to FIG. 2 ).
- the guide panel 117 may be located on the four sides of the reflective sheet 126.
- the wiring electrode 232 extending from the front of the frame 130 through the wiring hole 234 may be electrically connected to the power supply 315.
- the power supply 315 may be a printed circuit board that supplies power to the display device 100.
- the power supply 315 may change AC power to DC power.
- the power supply 315 may supply current to the optical assembly 124 through the wiring electrode 232.
- the power supply 315 may be electrically connected through the main board 321 and the wiring electrode 232.
- the main board 321 may be spaced apart from the power supply 315 by a predetermined interval.
- the main board 321 may be a printed circuit board that provides an interface for operating the display device 100. In addition, the main board 321 may check and manage operating states of components of the display device 100.
- the main board 321 and the power supply 315 may be electrically connected to the Ticon board 319 through the wiring electrode 232.
- the tickon board 319 may be a printed circuit board that transmits power or signals input from the main board 321 or the power supply 315 to the display panel 110.
- the ticon board 319 may be electrically connected to the display panel 110 in front of the frame 130 through an FFC cable (Flat Flex Cable) 251.
- Each of the printed circuit boards is shown to be connected to each other, but the present invention is not limited thereto, and only at least some of the printed circuit boards may be connected to each other.
- the supporter 200 may include a base 211, a bridge 213, a tower 215, a bottom 216, and a fixed bar 217.
- the base 211 may be an elongated plate.
- the bridge 213 is spaced apart from the base 211 and extends from one end of the base 211 to the other end, and may connect one end and the other end of the base 211.
- the bridge 213 may include a first shoulder 2131, a second shoulder 2132, and a loop 2133.
- the first shoulder 2131 may extend upward of the base 211 while drawing an arch at one end of the base 211.
- the second shoulder 2132 may extend upward of the base 211 while drawing an arch at the other end of the base 211.
- the roof 2133 may connect the first shoulder 2131 and the second shoulder 2132.
- the distance between the first shoulder 2131 and the base 211 and/or the distance between the second shoulder 2132 and the base 211 may be greater than the distance between the roof 2133 and the base 211. That is, the top surface of the first shoulder 2131 and/or the top surface of the second shoulder 2132 may protrude forward than the top surface of the roof 2133.
- the first shoulder 2131, the second shoulder 2132 and/or the loop 2133 may have elasticity.
- the tower 215 may be elongated from the upper surface of the roof 2133.
- the tower 215 may have a diameter gradually decreasing along the extension direction.
- the tower 215 may have a cylindrical shape.
- the tower 215 may have an elastic force that bends easily and may have rigidity that does not bend.
- the bottom 216 may form a step on the lower surface of the base 211.
- the step formed by the bottom surface of the bottom 216 and the base 211 may correspond to the thickness of the reflective sheet 126.
- the fixed bar 217 may include a shaft 2173, a stopper 2174, and bars 2171 and 2172.
- the bars 2171 and 2172 may extend across the lower surface of the bottom 216 and may be spaced apart from the bottom 216.
- the shaft 2173 may protrude from the lower surface of the bottom 216 toward the bars 2171 and 2172 to extend.
- the stopper 2174 may be formed while protruding from the outer peripheral surface of the shaft 2173.
- the stopper 2174 may be formed on both sides of the outer peripheral surface of the shaft 2173 or may be formed on one side.
- the stopper 2174 may fill a part of the space formed by the bottom 216 and the bars 2171 and 2172.
- the base 211 may have a long axis CL1 of the base 211 in the longitudinal direction.
- the bars 2171 and 2172 may have long axes CL2 of the bars 2171 and 2172 in the longitudinal direction.
- the long axis CL2 of the bar may be tilted or formed at a certain angle with respect to the long axis CL1 of the base.
- the major axis CL2 of the bar may form 21 degrees with respect to the major axis CL1 of the base.
- the fixing slot 134S may be formed on the flat plate portion 132 of the frame 130.
- the frame 130 may include a fixed recess 134.
- the fixed depression 134 may be formed to protrude forward of the frame 130 while the frame 130 is pressed.
- the fixed depression 134 may have a rectangular shape as a whole.
- the fixing slot 134S may be formed while the fixing recessed portion 134 is punched.
- the fixed slot 134S may include bar slots 1341 and 1342, a shaft hole 1343, and a stopper slot 1344.
- the fixed depression 134 may have a long axis FL of the frame 130 in the longitudinal direction.
- the bar slots 1341 and 1342 may have a shape corresponding to the shape of the bars 2171 and 2172, and may be tilted with respect to the frame long axis FL or may form a certain angle.
- the angle of the major axis CL3 of the bar slots 1341 and 1342 with respect to the frame major axis FL may be 14 degrees.
- the stopper slot 1344 may be tilted with respect to the frame long axis FL or may form a predetermined angle.
- the stopper slot 1344 may intersect with the bar slots 1341 and 1342.
- the angle of the long axis CL4 of the stopper slot 1344 with respect to the frame long axis FL may be 21 degrees.
- the protruding holes 1345 and 1346 may be formed on the long axis CL4 of the stopper slot 1344.
- the first protruding hole 1345 may be positioned to be spaced apart from one end of the stopper slot 1344, and the second protruding hole 1346 may be positioned to be spaced apart from the other end of the stopper slot 1344.
- the protruding holes 1345 and 1346 may be symmetric with respect to the stopper slot 1344.
- the supporter 200 may be mounted or coupled to the frame 130.
- the supporter 200 may be coupled to the rear surface of the fixed recess 134.
- the supporter 200 may be inserted into the frame 130 at the position of the fixed depression 134 and rotated to be coupled to the frame 130 (FIGS. 10 and 11 ).
- the base 211 of the supporter 200 may have an overall rectangular shape.
- the base 211 may have a long side and a short side.
- a long side of the base 211 may be defined as a length direction, and a short side of the base 211 may be defined as a width direction.
- the width D2 of the base 211 or the width D2 of the fixed depression 134 may be smaller than the distance D1 between the substrates 122.
- the length direction of the base 211 may be parallel to the length direction of the substrate 122.
- the substrate 122 and the optical assembly 124 may be disposed in a higher density, and the amount of light provided to the display panel 110 may be increased.
- the shaft 2173 and the fixing bar 217 are inserted into the fixing slot 134S, and the supporter 200 is rotated to move the fixing bar 217 on the fixing slot 134S.
- the long axis CL2 of the fixing bar 217 may cross the long axis CL3 of the fixing slot 134S.
- the reflective sheet 126 may be positioned in a space between the base 211 formed while the bottom 216 is supported by the outer surface of the fixed recess 134 and the outer surface of the fixed recess 134.
- the base 211 may press the reflective sheet 126, and the supporter 200 may fix the reflective sheet 126 to the frame 130.
- an angle formed by the long axis CL2 of the fixing bar 217 with respect to the long axis CL3 of the fixing slot 134S may be about 35 degrees. Accordingly, it is possible to improve the convenience of work when the supporter 200 is mounted and/or replaced. If the angle formed by the long axis CL2 of the fixed bar 217 with respect to the long axis CL3 of the fixed slot 134S is less than 35 degrees, the workability for mounting the supporter 200 to the frame 130 is deteriorated. , Operation errors may occur.
- the stopper slot 1344 may not only accommodate the stopper 2174 of the supporter 200, but also limit the range of rotational movement of the supporter 200 by coming into contact with the stopper 2174.
- the protrusions 2171P and 2172P formed in the fixing bar 217 may be inserted into the protrusion holes 1345 and 1346.
- the first protrusion 2171P formed in the first bar 2171 may be inserted into the first protrusion hole 1345
- the second protrusion 2172P formed in the second bar 2172 is a second protrusion hole 1346 Can be inserted into Accordingly, the supporter 200 may be firmly coupled to the frame 130.
- the temperature applied to the diffusion plate 129 may increase, and the diffusion plate 129 may be deformed.
- the deformation of the diffusion plate 129 may be sagging.
- the supporter 200 may support the diffusion plate 129.
- the lower surface of the diffusion plate 129 may contact the tower 215 of the supporter 200. Accordingly, the optical gap G can be maintained, and deterioration of image quality of the display device can be prevented.
- a configuration A described in a specific embodiment and/or a drawing may be combined with a configuration B described in another embodiment and/or a drawing. That is, even if the combination between the components is not directly described, the combination is possible except for the case where the combination is described as impossible.
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
Claims (11)
- 디스플레이 패널;상기 디스플레이 패널의 후방에 위치하는 프레임;상기 디스플레이 패널과 상기 프레임 사이에 위치하고, 상기 디스플레이 패널에 빛을 제공하는 광원; 그리고,상기 디스플레이 패널과 상기 광원 사이에 위치하고, 상기 광원에서 제공하는 빛이 투과하는 광학층; 그리고,상기 프레임과 상기 광학층 사이에 위치하고, 상기 프레임에 장착되며, 상기 광학층을 지지하는 서포터를 포함하고,상기 서포터는:길게 연장되고, 상기 프레임 상에 놓여 지는 베이스;상기 베이스의 일단에서 상기 베이스의 타단으로 연장되고, 상기 베이스의 상측에서 상기 베이스와 이격되는 브릿지;상기 브릿지 상에서 상기 광학층을 향해 연장되는 타워;상기 베이스의 하면에서 상기 프레임을 향해 연장되는 축; 그리고,상기 축으로부터 상기 베이스의 길이방향과 교차하는 방향으로 길게 연장되는 바를 포함하는 디스플레이 디바이스.
- 제 1항에 있어서,상기 프레임은:평판부; 그리고,상기 평판부에서 경사를 지니며 상기 디스플레이 패널을 향해 연장되는 경사부를 포함하고,상기 평판부는:상기 평판부의 후면에서 상기 평판부의 전면을 향해 함몰되는 고정함몰부: 그리고,상기 고정함몰부에 형성되고, 상기 서포터의 바가 통과하도록 컷-아웃(cut-out)되며, 상기 베이스의 길이방향 및 상기 바의 길이방향과 교차하는 바 슬롯을 포함하는 디스플레이 디바이스.
- 제1 항에 있어서,상기 베이스와 상기 바가 형성하는 교차각도는 약 21도인 디스플레이 디바이스.
- 제2 항에 있어서,상기 베이스와 상기 바 슬롯이 형성하는 교차각도는 약 14도인 디스플레이 디바이스.
- 제2항에 있어서,상기 바와 상기 바 슬롯이 형성하는 교차각도는 약 35도 인 디스플레이 디바이스.
- 제 2항에 있어서,상기 서포터는:상기 축의 외주면에 형성되고, 상기 베이스와 상기 바 사이에 위치하는 스토퍼를 더 포함하고,상기 프레임은:상기 고정함몰부에 형성되고, 상기 바 슬롯과 교차하는 방향으로 길게 연장되되, 상기 바 슬롯의 길이 보다 짧고, 상기 스토퍼에 대응되는 스토퍼 슬롯을 더 포함하는 디스플레이 디바이스.
- 제 6항에 있어서,상기 스토퍼 슬롯과 상기 바 슬롯이 형성하는 교차각도는 약 35도인 디스플레이 디바이스.
- 제 7항에 있어서,상기 서포터는 상기 고정함몰부에 놓여 지고,상기 서포터의 바가 상기 바 슬롯에 삽입되어 회전하면 상기 서포터의 스토퍼는 상기 스토퍼 슬롯에 접촉하는 디스플레이 디바이스.
- 제 6항에 있어서,상기 프레임은:상기 스토퍼 슬롯의 길이방향에서, 상기 스토퍼 슬롯의 일단으로부터 이격되어 형성되는 제1 돌기홀; 그리고,상기 스토퍼 슬롯의 길이방향에서, 상기 스토퍼 슬롯의 타단으로부터 이격되어 형성되는 제2 돌기홀을 포함하고,상기 서포터는:상기 바의 일단에 인접하여 위치하고, 상기 바로부터 상기 베이스를 향해 돌출되어 상기 제1 돌기홀에 삽입되는 제1 돌기; 그리고,상기 바의 타단에 인접하여 위치하고, 상기 바로부터 상기 베이스를 향해 돌출되어 상기 제2 돌기홀에 삽입되는 제2 돌기를 포함하는 디스플레이 디바이스.
- 제 2항에 있어서,상기 서포터는:상기 베이스의 하면에서 상기 베이스의 하면과 단차를 형성하는 바텀을 더 포함하고,상기 바텀은 상기 평판부의 전면에서 상기 고정함몰부에 의해 지지되는 디스플레이 디바이스.
- 제 10 항에 있어서,상기 프레임 상에 위치하고, 상기 광원에서 제공되는 빛을 상기 디스플레이 패널 방향으로 반사하는 반사시트를 더 포함하고,상기 반사시트는 상기 바텀에 의해 상기 프레임의 전면과 상기 베이스의 하면에 형성된 틈 사이에 일부가 삽입되고,상기 서포터의 베이스는 상기 반사시트의 상면을 누르는 디스플레이 디바이스.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020227005853A KR102638185B1 (ko) | 2019-10-25 | 2019-10-25 | 디스플레이 디바이스 |
| PCT/KR2019/014137 WO2021080048A1 (ko) | 2019-10-25 | 2019-10-25 | 디스플레이 디바이스 |
| EP19949736.3A EP4050407B1 (en) | 2019-10-25 | 2019-10-25 | Display device |
| US17/078,029 US11169414B2 (en) | 2019-10-25 | 2020-10-22 | Display device for enhancing backlight |
| US17/495,762 US11506936B2 (en) | 2019-10-25 | 2021-10-06 | Display device for enhancing backlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2019/014137 WO2021080048A1 (ko) | 2019-10-25 | 2019-10-25 | 디스플레이 디바이스 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021080048A1 true WO2021080048A1 (ko) | 2021-04-29 |
Family
ID=75585202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2019/014137 Ceased WO2021080048A1 (ko) | 2019-10-25 | 2019-10-25 | 디스플레이 디바이스 |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US11169414B2 (ko) |
| EP (1) | EP4050407B1 (ko) |
| KR (1) | KR102638185B1 (ko) |
| WO (1) | WO2021080048A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023101055A1 (ko) * | 2021-12-02 | 2023-06-08 | 엘지전자 주식회사 | 디스플레이 디바이스 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021080048A1 (ko) | 2019-10-25 | 2021-04-29 | 엘지전자 주식회사 | 디스플레이 디바이스 |
| KR20250127324A (ko) * | 2023-01-13 | 2025-08-26 | 엘지전자 주식회사 | 디스플레이 디바이스 |
| WO2024162491A1 (ko) * | 2023-01-31 | 2024-08-08 | 엘지전자 주식회사 | 디스플레이 디바이스 |
| KR20260028765A (ko) * | 2023-07-31 | 2026-03-04 | 엘지전자 주식회사 | 디스플레이 디바이스 |
| WO2025150582A1 (ko) * | 2024-01-10 | 2025-07-17 | 엘지전자 주식회사 | 백라이트 유닛 및 디스플레이 디바이스 |
| KR20250120619A (ko) * | 2024-02-02 | 2025-08-11 | 삼성전자주식회사 | 디스플레이 장치 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060244891A1 (en) * | 2005-04-27 | 2006-11-02 | Masaki Tsubokura | Display device |
| KR20080053699A (ko) * | 2006-12-11 | 2008-06-16 | 엘지디스플레이 주식회사 | 액정표시장치의 백라이트 어셈블리 |
| KR20090065700A (ko) * | 2007-12-18 | 2009-06-23 | 엘지이노텍 주식회사 | 발광 모듈 접속 장치 및 이를 구비한 라이트 유닛 |
| KR101306003B1 (ko) * | 2006-01-03 | 2013-09-12 | 삼성디스플레이 주식회사 | 광원지지부재와 이를 포함하는 표시장치 |
| KR20160128799A (ko) * | 2015-04-29 | 2016-11-08 | 엘지전자 주식회사 | 디스플레이 장치 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060087646A (ko) * | 2005-01-31 | 2006-08-03 | 삼성전자주식회사 | 서포트 부재, 이를 갖는 백라이트 어셈블리 및 이를 갖는표시장치 |
| JPWO2017038082A1 (ja) * | 2015-09-01 | 2018-07-05 | パナソニックIpマネジメント株式会社 | 映像表示装置 |
| KR20170091334A (ko) * | 2016-02-01 | 2017-08-09 | 엘지전자 주식회사 | 백라이트 유닛 및 이를 포함하는 디스플레이 장치 |
| WO2021080048A1 (ko) | 2019-10-25 | 2021-04-29 | 엘지전자 주식회사 | 디스플레이 디바이스 |
-
2019
- 2019-10-25 WO PCT/KR2019/014137 patent/WO2021080048A1/ko not_active Ceased
- 2019-10-25 KR KR1020227005853A patent/KR102638185B1/ko active Active
- 2019-10-25 EP EP19949736.3A patent/EP4050407B1/en active Active
-
2020
- 2020-10-22 US US17/078,029 patent/US11169414B2/en active Active
-
2021
- 2021-10-06 US US17/495,762 patent/US11506936B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060244891A1 (en) * | 2005-04-27 | 2006-11-02 | Masaki Tsubokura | Display device |
| KR101306003B1 (ko) * | 2006-01-03 | 2013-09-12 | 삼성디스플레이 주식회사 | 광원지지부재와 이를 포함하는 표시장치 |
| KR20080053699A (ko) * | 2006-12-11 | 2008-06-16 | 엘지디스플레이 주식회사 | 액정표시장치의 백라이트 어셈블리 |
| KR20090065700A (ko) * | 2007-12-18 | 2009-06-23 | 엘지이노텍 주식회사 | 발광 모듈 접속 장치 및 이를 구비한 라이트 유닛 |
| KR20160128799A (ko) * | 2015-04-29 | 2016-11-08 | 엘지전자 주식회사 | 디스플레이 장치 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4050407A4 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023101055A1 (ko) * | 2021-12-02 | 2023-06-08 | 엘지전자 주식회사 | 디스플레이 디바이스 |
| US12455475B2 (en) | 2021-12-02 | 2025-10-28 | Lg Electronics Inc. | Display device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4050407B1 (en) | 2025-07-09 |
| KR20220038726A (ko) | 2022-03-29 |
| US11506936B2 (en) | 2022-11-22 |
| EP4050407A1 (en) | 2022-08-31 |
| KR102638185B1 (ko) | 2024-02-16 |
| US20220026767A1 (en) | 2022-01-27 |
| US20210124218A1 (en) | 2021-04-29 |
| EP4050407A4 (en) | 2023-04-26 |
| US11169414B2 (en) | 2021-11-09 |
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