WO2023273915A1 - Film d'amélioration de luminosité et appareil d'affichage - Google Patents

Film d'amélioration de luminosité et appareil d'affichage Download PDF

Info

Publication number
WO2023273915A1
WO2023273915A1 PCT/CN2022/099350 CN2022099350W WO2023273915A1 WO 2023273915 A1 WO2023273915 A1 WO 2023273915A1 CN 2022099350 W CN2022099350 W CN 2022099350W WO 2023273915 A1 WO2023273915 A1 WO 2023273915A1
Authority
WO
WIPO (PCT)
Prior art keywords
height
display device
prism
prisms
brightness enhancement
Prior art date
Application number
PCT/CN2022/099350
Other languages
English (en)
Chinese (zh)
Inventor
罗飞
Original Assignee
纳晶科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 纳晶科技股份有限公司 filed Critical 纳晶科技股份有限公司
Publication of WO2023273915A1 publication Critical patent/WO2023273915A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0231—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having microprismatic or micropyramidal shape
    • 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
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • G02F1/133507—Films for enhancing the luminance
    • 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
    • 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
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side

Definitions

  • the present disclosure relates to the field of backlight display, in particular, to a brightness enhancement film and a display device.
  • Liquid crystal display is limited by pixel light leakage. Compared with new display technologies, contrast has become a short board. For this reason, liquid crystal display technology has gradually developed a partitioned backlight method, which controls the LED array of the backlight source in partitions. The backlight with different brightness can be controlled separately in each area, which can improve the above-mentioned pixel light leakage phenomenon to a certain extent and improve the display contrast.
  • the display effect of the backlight partition control technology is positively correlated with the number of partitions. The more partitions, the more difficult the technology and the higher the cost. Limited by this, a more efficient solution is currently needed.
  • the purpose of the present disclosure is to provide a brightness enhancement film and a display device, which can efficiently reduce the pixel light leakage phenomenon of the liquid crystal display.
  • a brightness enhancement film includes a substrate and a microstructure layer on the substrate, and the microstructure layer includes a plurality of The first height prism and a plurality of independently arranged second height prisms, each first height prism and each second height prism are arranged in a regular pattern, the height of each second height prism is h 2 , each first height prism The height is h 1 , and h 1 is greater than h 2 .
  • h 1 is less than 2h 2 , preferably, h 1 is less than 1.5h 2 .
  • the thickness of the substrate is h 0
  • the lateral width of the first height prism is d 1
  • the lateral width of the second height prism is d 2
  • the lateral distance between two adjacent first height prisms is greater than or equal to
  • the substrate includes one or more layers.
  • the material of the microstructure layer is PMMA.
  • the substrate includes quantum dots.
  • the display device includes a plurality of zone-controlled backlight sources, a brightness enhancement film, and a display layer containing a plurality of pixel arrays, and the brightness enhancement film is any one of the above-mentioned Brightness Enhancement Film.
  • the display device is a direct-type display device or an edge-type display device.
  • a display device including a plurality of backlight light sources controlled by zones, and an optical device, which can perform secondary division on the light emitted by the backlight light sources controlled by zones, so that in the display device During operation, a plurality of secondary partitions are formed, and the density of the secondary partitions is higher than the density of the initial partitions of the backlight light source.
  • the prism structure can realize the emission of light nearly perpendicular to or perpendicular to the surface of the brightness enhancement film, and the height of the second height prism is higher than the height of the first height prism, so it can realize the reflection of the diffusion of part of the light Blocking to achieve further partitioning of the backlight, or secondary partitioning. Therefore, the light output is controlled more precisely, the light leakage is reduced, the blurring of the edge area of the displayed image is reduced, and the contrast ratio of the display device adopting the brightness enhancement film is improved.
  • FIG. 1 shows a schematic diagram of a cross-sectional structure and a display effect of a direct-type display device in the prior art.
  • FIG. 2 shows a schematic diagram of a cross-sectional structure and a display effect of another direct-type display device in the prior art.
  • FIG. 3 shows a schematic diagram of a cross-sectional structure and a display effect of a direct-type display device according to an embodiment.
  • Fig. 4 shows a schematic diagram of the cross-sectional size structure of a brightness enhancing film according to an embodiment.
  • FIG. 5 shows a scale diagram of the partition size of the backlight light source in Embodiment 1.
  • FIG. 6 a shows a schematic diagram of the cross-sectional structure of the brightness enhancing film of Example 1.
  • FIG. 6 b shows a schematic cross-sectional structure diagram of a partially cut brightness enhancing film of Embodiment 1.
  • FIG. 6c shows a schematic side view of the three-dimensional structure of the brightness enhancing film of Example 1.
  • FIG. 6 d shows a schematic side view of a partially cut three-dimensional structure of the brightness enhancing film of Embodiment 1.
  • FIG. 6 d shows a schematic side view of a partially cut three-dimensional structure of the brightness enhancing film of Embodiment 1.
  • FIG. 7 shows the simulation results of the display screen of the display device of the first embodiment.
  • FIG. 8 shows the simulation results of the display screen of the display device of Comparative Example 1. Referring to FIG. 8
  • FIG. 9 shows the simulation results of the display screen of the display device of Comparative Example 2. Referring to FIG. 9
  • BL is the backlight source.
  • BL1 is the backlight light source of the first zone
  • BL2 is the backlight light source of the second zone
  • BL3 is the backlight light source of the third zone
  • BL4 is the backlight light source of the fourth zone.
  • the conventional optical plate or optical film is a whole piece of acrylic or other optical plastic materials.
  • the partition control of the backlight light source is not used, the light leakage will be serious, causing the pixels that do not need to be displayed to have light, such as the Z1 area, resulting in blurred image edges.
  • the display layer directly above the BL1 and BL4 backlight light sources can receive The light from the BL2 and BL3 backlight sources irradiates above them (see the direction of the arrow, which refers to the direction of the light), and the Z1 area appears.
  • the display effect is improved compared with that in Figure 1, there will still be light leakage from some pixels, resulting in the image to be displayed Edges are blurred, reducing contrast.
  • the first aspect of the present disclosure provides a brightness enhancement film
  • the brightness enhancement film includes a substrate and a microstructure layer on the substrate
  • the microstructure layer includes a plurality of first height prisms arranged at intervals and a plurality of independently arranged second height prisms, each first height prism and each second height prism are arranged in a regular pattern, the height of each second height prism is h 2 , and the height of each first height prism is h 1 , h 1 is greater than h 2 .
  • Fig. 3 shows a schematic structural diagram of the display device and a schematic diagram of the display effect. Comparing the display effects of Fig. 3 and Fig. 2, it can be seen that the image display area set by Z2 should be white The area except the Z2 area is a non-display area. If Z1 is not pure black, it proves that there is light leakage, but the black of the Z1 light leakage area in Figure 3 is deeper than the black of the Z1 light leakage area in Figure 2, which means that the light is reduced. Bleed-out, which reduces the blurring of the edge areas of the displayed image.
  • the prism structure (the first height prism and the second height prism) can realize that the light is nearly perpendicular to or perpendicular to the surface of the brightness enhancement film, and the height of the second height prism is higher than the height of the first height prism, so it can realize partial light emission. Diffuse reflective blocking to achieve further partitioning of the backlight, or secondary partitioning.
  • the surface of the first height prism is provided with a reflective material, and the reflectivity of the reflective material is not less than 50%, preferably not less than 80%.
  • the setting method may be coating.
  • the reflective blocking effect of the reflective material is stronger than that of the first height prism, and the partitioning effect is more significant.
  • the regular pattern arrangement includes but is not limited to, for example, the first height prisms are arranged in a row by b columns, the second height prisms are arranged in c rows by d columns, the number of each row and each column adjustable.
  • the regular pattern arrangement can also be a combination of other regular repeating patterns.
  • the arrangement shown in FIG. 6 may of course also be a grid-like arrangement.
  • the bottoms of any adjacent prisms are connected to each other, that is, the bottom interval between any two adjacent prisms is equal to zero.
  • each prism has a triangular cross-section.
  • Each prism is a triangular pyramid.
  • the top of the triangular pyramid can have a certain curvature, not sharp.
  • each prism has an approximately semicircular cross-section.
  • the first height prism and the second height prism can be made of different materials.
  • there may also be a third height prism the third height prism is different from the second height prism, and the height of the third height prism is smaller than the first height prism. In some embodiments, more prisms of varying heights may also be included.
  • h 1 is less than 2h 2 , preferably, h 1 is less than 1.5h 2 .
  • Height affects the light blocking effect of the first height prism.
  • 3 ⁇ ⁇ 5 second height prisms are arranged in a space between two adjacent first height prisms.
  • the thickness of the substrate is h 0
  • the lateral width of the first height prism is d 1
  • the lateral width of the second height prism is d 2
  • the lateral distance between two adjacent first height prisms is greater than or equal to
  • the height of the prism refers to the maximum value of the point on the cross-sectional figure perpendicular to the line segment of the substrate plane
  • the lateral width of the prism refers to the maximum width of the contact surface between the prism and the substrate.
  • the base angle is arctan(h 1 /d 1 ).
  • d 1 d 2 .
  • h2 ranges from 25 to 55 microns.
  • the material of the substrate is PET.
  • a substrate includes one or more layers. There is no special requirement for the material of any layer of the base material, but it should be able to have a relatively high light extraction rate to meet the brightness requirement of the display device.
  • the material of the microstructure layer is PMMA (polymethyl methacrylate), and reference can also be made to common brightness enhancing film materials.
  • the materials of the first height prism and the second height prism are different.
  • quantum dots are included in the substrate. Quantum dots are included in one or more layers of the substrate to realize the function of light conversion. In some embodiments, diffusing particles are included in the substrate. Diffusion particles are contained in one or more layers of the substrate to realize light diffusion.
  • the backlight light source is an LED, and the size of the LED is not particularly limited.
  • the second aspect of the present disclosure provides a display device, including a plurality of partition-controlled backlight sources, a brightness enhancement film, and a display layer containing a plurality of pixel arrays. membrane.
  • a display device having the brightness enhancing film has a higher contrast ratio.
  • the display device is a direct-type display device or an edge-type display device. How to realize partition control can refer to the prior art.
  • the third aspect of the present disclosure provides a display device, which includes a plurality of backlight sources controlled by zones, and also includes an optical device, which can perform secondary partitioning on the light emitted by the backlight sources controlled by zones, so that the display device During operation, a plurality of secondary partitions are formed, and the density of the secondary partitions is higher than the density of the initial partitions of the backlight light source. By further partitioning the backlight, smaller partitions are formed, thereby improving contrast.
  • the above-mentioned optical device may be any one of the above-mentioned brightness enhancement films.
  • the above-mentioned optical device is a diffusion plate or a diffusion film or a light guide plate.
  • the selected display area is 80mm ⁇ 50mm.
  • the set display image is a hollow figure as shown in FIG. 7 , and the set display transmittance (or light leakage rate) is 10%.
  • the 80mm ⁇ 50mm backlight light source is divided into 16 rectangular backlight partitions of 19.99mm ⁇ 12.49mm.
  • the backlight partition interval is set to 0.02mm (the setting on the software is the line width of the dividing line) ), and the backlight source is set to a uniform light-emitting field type.
  • a brightness-enhancing film of 80mm ⁇ 50mm is set, the PET substrate, the prism material is PMMA, and the thickness of the substrate is 125 ⁇ m; the height of the second height prism is 25 ⁇ m, and the cross section is the top angle It is a right-angled right triangle with a lateral width of 50 ⁇ m; the height of the first height prism is 62.5 ⁇ m, the cross section is triangular, and the lateral width is 50 ⁇ m; the second height prism and the first height prism are arranged in a horizontal and vertical array, and every two Four second height prisms are arranged between the first height prisms.
  • the pre-set display patterns are geometric figures and English letters.
  • the simulation results are shown in FIG. 7, and the horizontal and vertical coordinate units are dimensions (mm), the same below.
  • Example 1 The difference from Example 1 is that there is no partition of the backlight light source and no special brightness enhancement film, and a conventional brightness enhancement film is used.
  • the preset display patterns are as in Example 1, and the simulation results are shown in FIG. 8 .
  • Example 1 The difference from Example 1 is that there is no special brightness enhancing film.
  • the brightness enhancing film used was the same as in Comparative Example 1.
  • the preset display patterns are as in Example 1, and the simulation results are shown in FIG. 9 .

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

L'invention concerne un film d'amélioration de luminosité (2B) et un appareil d'affichage. Le film d'amélioration de luminosité (2B) comprend un substrat et une couche de microstructure située sur le substrat ; la couche de microstructure comprend une pluralité de premiers prismes de hauteur disposés à des intervalles et une pluralité de seconds prismes de hauteur qui sont disposés de manière indépendante ; chaque premier prisme de hauteur et chaque second prisme de hauteur sont tous deux disposés selon un motif régulier ; et la hauteur de chaque second prisme de hauteur est h2, la hauteur de chaque premier prisme de hauteur est h1, et h1 est supérieure à h2. Selon l'appareil d'affichage utilisant le film d'amélioration de luminosité, l'émission de lumière peut être commandée de manière plus précise, la fuite de lumière est réduite, le flou de la région de bord d'une image affichée est réduit, et le contraste de l'appareil d'affichage est amélioré.
PCT/CN2022/099350 2021-06-30 2022-06-17 Film d'amélioration de luminosité et appareil d'affichage WO2023273915A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110742454.6A CN113466978B (zh) 2021-06-30 2021-06-30 增亮膜及显示装置
CN202110742454.6 2021-06-30

Publications (1)

Publication Number Publication Date
WO2023273915A1 true WO2023273915A1 (fr) 2023-01-05

Family

ID=77876934

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/099350 WO2023273915A1 (fr) 2021-06-30 2022-06-17 Film d'amélioration de luminosité et appareil d'affichage

Country Status (2)

Country Link
CN (1) CN113466978B (fr)
WO (1) WO2023273915A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113466978B (zh) * 2021-06-30 2023-07-07 纳晶科技股份有限公司 增亮膜及显示装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070115569A1 (en) * 2004-07-02 2007-05-24 Efun Technology Co., Ltd. Brightness enhancement film having curved prism units and microstructure layer
CN103048709A (zh) * 2012-12-28 2013-04-17 合肥乐凯科技产业有限公司 一种增亮扩散复合膜
CN204228987U (zh) * 2014-11-13 2015-03-25 东莞市纳利光学材料有限公司 一种聚光增亮膜
CN204731510U (zh) * 2015-05-22 2015-10-28 深圳市聚飞光学材料有限公司 一种增亮膜及背光模组
CN106886067A (zh) * 2015-12-15 2017-06-23 宁波长阳科技股份有限公司 一种复合增亮膜及其制备方法
CN206594325U (zh) * 2017-02-20 2017-10-27 张家港康得新光电材料有限公司 一种高透光防刮增亮膜
CN212410993U (zh) * 2020-06-09 2021-01-26 北京京东方光电科技有限公司 背光模组及显示装置
CN113466978A (zh) * 2021-06-30 2021-10-01 纳晶科技股份有限公司 增亮膜及显示装置

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7384173B2 (en) * 2004-12-30 2008-06-10 3M Innovative Properties Company Brightness enhancement article
JP2008281658A (ja) * 2007-05-08 2008-11-20 Nec Saitama Ltd 輝度上昇フィルムを具備する積層構造及び輝度上昇フィルム
JP2009037984A (ja) * 2007-08-03 2009-02-19 Mitsubishi Rayon Co Ltd レンズシート、面光源装置及び液晶表示装置
JP2010049012A (ja) * 2008-08-21 2010-03-04 Toppan Printing Co Ltd 光学シート、バックライト及びディスプレイ装置
CN102402947B (zh) * 2010-09-17 2014-03-12 Tcl集团股份有限公司 一种侧背光分区控制系统的动态分区方法
CN202929236U (zh) * 2012-11-29 2013-05-08 京东方科技集团股份有限公司 一种导光板、背光模组及显示装置
CN203337950U (zh) * 2013-07-24 2013-12-11 北京京东方光电科技有限公司 一种光学结构和液晶显示装置
CN203811834U (zh) * 2014-04-11 2014-09-03 苏州艾达仕电子科技有限公司 抗刮伤增亮膜
CN104019404A (zh) * 2014-05-23 2014-09-03 深圳市华星光电技术有限公司 背光模组、显示装置及其驱动方法
TWM496138U (zh) * 2014-11-04 2015-02-21 Optivision Technology Inc 聚光片
CN204178043U (zh) * 2014-11-17 2015-02-25 光耀科技股份有限公司 聚光片
TWM514706U (zh) * 2015-08-27 2015-12-21 Benq Materials Corp 調光裝置
CN205720744U (zh) * 2016-06-15 2016-11-23 深圳创维－Rgb电子有限公司 一种棱镜结构、棱镜膜以及背光模组
CN106952621B (zh) * 2017-05-25 2019-10-01 京东方科技集团股份有限公司 一种显示装置及其驱动方法
CN109752781A (zh) * 2017-11-03 2019-05-14 友辉光电股份有限公司 在背光模块中使用的光学组件
CN107884990B (zh) * 2017-11-30 2022-02-22 武汉天马微电子有限公司 一种背光模组及显示装置
CN208351033U (zh) * 2018-07-18 2019-01-08 信利半导体有限公司 一种复合增光膜及背光模组
CN109343274B (zh) * 2018-11-26 2022-02-11 厦门天马微电子有限公司 一种背光模组的增光结构、背光模组及显示装置
CN111261665A (zh) * 2018-12-03 2020-06-09 昆山工研院新型平板显示技术中心有限公司 量子点发光器件及其制备方法、显示装置
CN110161758B (zh) * 2019-06-24 2022-04-05 京东方科技集团股份有限公司 光转换结构、背光模组及虚拟现实显示装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070115569A1 (en) * 2004-07-02 2007-05-24 Efun Technology Co., Ltd. Brightness enhancement film having curved prism units and microstructure layer
CN103048709A (zh) * 2012-12-28 2013-04-17 合肥乐凯科技产业有限公司 一种增亮扩散复合膜
CN204228987U (zh) * 2014-11-13 2015-03-25 东莞市纳利光学材料有限公司 一种聚光增亮膜
CN204731510U (zh) * 2015-05-22 2015-10-28 深圳市聚飞光学材料有限公司 一种增亮膜及背光模组
CN106886067A (zh) * 2015-12-15 2017-06-23 宁波长阳科技股份有限公司 一种复合增亮膜及其制备方法
CN206594325U (zh) * 2017-02-20 2017-10-27 张家港康得新光电材料有限公司 一种高透光防刮增亮膜
CN212410993U (zh) * 2020-06-09 2021-01-26 北京京东方光电科技有限公司 背光模组及显示装置
CN113466978A (zh) * 2021-06-30 2021-10-01 纳晶科技股份有限公司 增亮膜及显示装置

Also Published As

Publication number Publication date
CN113466978A (zh) 2021-10-01
CN113466978B (zh) 2023-07-07

Similar Documents

Publication Publication Date Title
US9223074B2 (en) Light guide plate and area light source device
CN101661188B (zh) 液晶显示器
US9081225B2 (en) Liquid crystal display device
TWI728252B (zh) 光學膜及具有光學膜的顯示裝置
CN107993577A (zh) 视频墙显示装置
US20080084709A1 (en) Light Guide Plate and Back-Light Module Having Light Guide Plate
WO2016206261A1 (fr) Film d'élargissement d'angle de visualisation et dispositif d'affichage à cristaux liquides à transistor en couches minces à grand angle de visualisation le comprenant
KR20070000955A (ko) 면광원 장치
US9684109B2 (en) Light guide plate, lighting device, display device, and television device
US20220113591A1 (en) Diffusion plate and backlight module
WO2018126701A1 (fr) Module de rétroéclairage et appareil d'affichage
JP2010108795A (ja) 照明装置および表示装置
TWI388883B (zh) 具有傾斜脊部之稜形片以及使用該稜形片之液晶顯示裝置
WO2016197519A1 (fr) Film d'extension d'angle de visualisation et dispositif d'affichage à cristaux liquides à transistors à couche mince à angle de visualisation large comprenant celui-ci
TW201339670A (zh) 照明裝置及顯示裝置
JP2017049326A (ja) 表示装置
WO2023273915A1 (fr) Film d'amélioration de luminosité et appareil d'affichage
KR100817768B1 (ko) 광학시트 및 이를 구비한 액정표시장치
US9188729B2 (en) Prism sheet, backlight unit including the same, and method of manufacturing the same
US20210149105A1 (en) Back light unit, fabricating method thereof and display device
US20160313471A1 (en) Light refraction structure and its manufacture method, color filter substrate and its manufacture method, and display device
CN101373235A (zh) 背光模块及其光学膜
KR102098213B1 (ko) 광학시트
JP5012221B2 (ja) バックライトユニット、およびディスプレイ装置
WO2015029639A1 (fr) Plaque de guidage de lumière, dispositif de source de lumière planaire, et dispositif d'affichage d'image à transmission

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22831733

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE