WO2016070544A1 - 背光模组以及显示装置 - Google Patents
背光模组以及显示装置 Download PDFInfo
- Publication number
- WO2016070544A1 WO2016070544A1 PCT/CN2015/074663 CN2015074663W WO2016070544A1 WO 2016070544 A1 WO2016070544 A1 WO 2016070544A1 CN 2015074663 W CN2015074663 W CN 2015074663W WO 2016070544 A1 WO2016070544 A1 WO 2016070544A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- backlight module
- disposed
- substrate
- guide plate
- light source
- Prior art date
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
- G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/003—Lens or lenticular sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Definitions
- Embodiments of the present disclosure relate to a backlight module and a display device.
- the liquid crystal display mostly uses a backlight module to provide a light source to the display panel, and the light guide plate in the backlight module uniformly guides the light emitted by the light source to the display panel.
- the existing light guide plate has a plate shape, and the light loss thereof is about 30%, and light leakage is easily generated on the side of the light guide plate, and additional black tape is required to shield the light leakage region, resulting in a low light output rate and affecting display quality.
- the light guide plate of the plate structure does not have a corresponding position to accommodate the light source device, and forms a limitation on the narrow bezel design of the product.
- At least one embodiment of the present disclosure provides a backlight module, including:
- PCB substrate disposed on two sides of the light guide plate, wherein the PCB substrate is provided with a plurality of sets of light source devices, each set of light source devices including at least one light source device;
- the light guide plate is provided with a plurality of grooves on one side of the PCB substrate for accommodating the light source device;
- the inner wall of the groove is provided with a plurality of protrusions.
- the protrusion is made of the same material as the light guide plate and formed directly on the inner wall of the groove.
- the protrusion is formed as a lens film disposed on an inner wall of the groove.
- the protrusion has a polygonal or curved cross section.
- the polygon is a triangle or a quadrangle.
- the arc is semicircular.
- the protrusions are continuously disposed or spaced apart.
- the number of the grooves is equal to the number of light source device groups.
- the light source device is spaced apart from the inner wall of the groove by a predetermined distance.
- At least one embodiment of the present disclosure also provides a display device including the above backlight module.
- the display device further includes an upper substrate and a lower substrate, the upper substrate and the lower substrate are disposed on the cartridge; an upper polarizer disposed on an upper surface of the upper substrate; a color film layer, And disposed on the lower surface of the upper substrate; the wire grid polarizing film and the array layer are disposed on the inner surface of the lower substrate; the alignment layer is disposed on the inner surface of the upper and lower substrates; and the liquid crystal layer is disposed on the upper substrate and the Between the substrates; a sealant; sealing the periphery of the liquid crystal layer; and nanoparticles disposed on an outer surface of the lower substrate, and a surface of the nanoparticle is provided with a reflective plate; wherein the light guide plate is set to be lower Substrate.
- FIG. 1 is a schematic structural view of a backlight module according to an embodiment of the present disclosure
- FIG. 2 is a schematic view showing a triangular protrusion structure in a backlight module according to an embodiment of the present disclosure
- FIG. 3 is a schematic view showing a trapezoidal protrusion structure in a backlight module according to an embodiment of the present disclosure
- FIG. 4 is a schematic view showing reflection of light rays passing through a protrusion according to an embodiment of the present disclosure
- FIG. 5 is a schematic view showing a convex structure of a triangular lens film in a backlight module according to Embodiment 2 of the present disclosure
- FIG. 6 is a schematic structural view of a display device according to an embodiment of the present disclosure.
- An embodiment of the present disclosure provides a backlight module, as shown in FIGS. 1 to 4, the backlight module, include:
- the PCB substrate 2 is located on the side of the light guide plate 1, the PCB substrate 2 is provided with a plurality of light source device groups 3;
- the light guide plate 1 is provided with a plurality of grooves 11 facing the PCB substrate 2 for accommodating the light source device group 3; the inner wall of the groove 11 is provided with a plurality of protrusions 111.
- Each of the light source device groups 3 includes at least one light source device, which is illustrated in the drawing with each light source device group including a light source device.
- the projection 111 is made of the same material as the light guide plate 1 and is formed directly on the inner wall of the recess 11. That is, while the groove 11 is formed on the light guide plate 1, the pattern of the projection 111 is formed at the same time.
- one side of the light guide plate is arranged in a groove structure, which can accommodate the light source device, thereby maximally saving the occupied area of the light source device and realizing the narrow frame design of the product.
- a plurality of protrusions 111 are disposed on the inner wall of the recess 11 in the embodiment, and the light emitted by the light source device is reflected by the protrusions, and the light emitted from the side of the light source device can be utilized to improve the utilization of light. Further, the required brightness is realized by using less light source devices, which can effectively reduce the heat dissipation burden on the light source device while saving energy, thereby reducing the internal temperature of the optical module and improving the service life of the product.
- the number of the protrusions may be determined according to actual needs, and the structure may be polygonal or curved, and of course, other geometric shapes may also be used.
- the polygons in the embodiments of the present disclosure may be triangular and quadrangular, and the quadrilateral may be rectangular, trapezoidal or other irregular quadrilateral; the arc may be semi-circular, semi-elliptical, or other irregular curved.
- the protrusions 111 can be disposed continuously or spaced apart on the inner wall of the groove. Both of the two arrangements can cause more reflection when the light passes through the protrusion, thereby increasing the light output rate.
- the light source device group in this embodiment includes at least one LED lamp.
- LED lamp in addition to the LED lamp, other types of light-emitting elements can be used for the light source device group.
- the number of the grooves is set to be equal to the number of the light source device groups.
- the light source device group is disposed at a predetermined distance from the inner wall of the groove.
- FIG. 5 shows a structure in accordance with a second embodiment of the present disclosure.
- the backlight module provided in the second embodiment is different from the first embodiment in that the protrusion 111 is made of a lens film which is adhered to the inner wall of the recess 11. That is, the groove 11 may be formed on the light guide plate 1, and the lens film is convexly disposed on the inner wall of the groove in the form of a lens film sticking.
- the lens film may also be polygonal or curved, and the polygon may be a triangle and a quadrangle, and the quadrilateral may be a rectangle, a trapezoid or other irregular quadrilateral;
- the arc may be semi-circular, semi-elliptical, or other irregular curved.
- the lens film can adopt different shapes to produce protrusions of different shapes to further reflect more light and improve the effective use of light.
- At least one embodiment of the present disclosure also provides a display device including the backlight module described above.
- the display device further includes an upper substrate 20 and a lower substrate 30.
- the upper substrate 20 and the lower substrate 30 are disposed on the cartridge; the upper polarizer 21 is disposed on the upper surface of the upper substrate 20; and the color film layer 22 is disposed.
- a lower surface of the upper substrate 20 a wire grid polarizing film 23 and an array layer 26 disposed on an inner surface of the lower substrate; an alignment layer 24 disposed on an inner surface of the upper and lower substrates; and a liquid crystal layer 25 interposed therebetween
- a sealant 29 sealing the periphery of the liquid crystal layer 25
- nanoparticles 27 disposed on the outer surface of the lower substrate, and the surface of the nanoparticles is provided with a reflector 28
- the light guide plate is disposed as a lower substrate.
- the light guide plate functions as a lower substrate and a light guide plate, and a wire grid polarizing film is used in place of the existing attached polarizer to achieve polarization of the light, thereby solving the problem that the existing display device is excessively thick.
- the problem is to achieve an ultra-thin design of the display device.
- the display device can be any one of an electronic product such as a liquid crystal display, a liquid crystal display, a tablet computer, a notebook, and an e-book.
- An embodiment of the present disclosure provides a backlight module and a display device.
- the light source device is provided by providing a plurality of grooves on one side of the light guide plate, and a plurality of protrusions are disposed on the inner wall of the groove.
- the light emitted from the side of the device enables the utilization of light to be increased, and the required brightness is realized with fewer light source devices, which can effectively reduce the heat dissipation burden on the light source device group while saving energy, thereby reducing the internal temperature of the module and improving the product.
- the groove for accommodating the light source device group is arranged to further reduce the occupied area of the light source device group, and the narrow bezel design of the product can be realized.
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Planar Illumination Modules (AREA)
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Abstract
Description
Claims (11)
- 一种背光模组,包括:导光板;以及PCB基板,位于导光板一侧,所述PCB基板上设有多个光源器件组;其中,所述导光板朝向PCB基板的一侧分别设有多个凹槽,用于容纳光源器件组;所述凹槽的内壁上设有多个凸起。
- 如权利要求1所述的背光模组,其中,所述凸起由与导光板相同的材料制作,直接形成在凹槽的内壁上。
- 如权利要求1或2所述的背光模组,其中,所述凸起形成为透镜薄膜。
- 如权利要求1至3中任何一项所述的背光模组,其中,所述凸起的截面为多边形或弧形。
- 如权利要求4所述的背光模组,其中,所述多边形为三角形或四边形。
- 如权利要求4所述的背光模组,其中,所述弧形为半圆形。
- 如权利要求1至6中任何一项所述的背光模组,其中,所述凸起连续设置或间隔设置。
- 如权利要求1至7中任何一项所述的背光模组,其中,所述凹槽的数量与光源器件组的数量相等。
- 如权利要求1至8中任何一项所述的背光模组,其中,所述光源器件组设置得与凹槽内壁之间有预定距离。
- 一种显示装置,其包括权利要求1-9任一项所述的背光模组。
- 如权利要求10所述的显示装置,其中,该显示装置还包括:上基板和下基板,所述上基板和下基板对盒设置;上偏光片,设置于所述上基板的上表面;彩膜层,设置于上基板的下表面;线栅偏光膜和阵列层,设置于所述下基板的内表面;取向层,设置于所述上下基板内表面;液晶层,夹设于所述上基板和所述下基板之间;封框胶,密封所述液晶层周边;以及纳米颗粒,设置于所述下基板的外表面,且纳米颗粒表面设有反射板;其中,导光板用作下基板。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US14/785,762 US9874673B2 (en) | 2014-11-03 | 2015-03-20 | Backlight module and display device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201410608754.5 | 2014-11-03 | ||
CN201410608754.5A CN104317101A (zh) | 2014-11-03 | 2014-11-03 | 一种背光模组以及显示装置 |
Publications (1)
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WO2016070544A1 true WO2016070544A1 (zh) | 2016-05-12 |
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PCT/CN2015/074663 WO2016070544A1 (zh) | 2014-11-03 | 2015-03-20 | 背光模组以及显示装置 |
Country Status (3)
Country | Link |
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US (1) | US9874673B2 (zh) |
CN (1) | CN104317101A (zh) |
WO (1) | WO2016070544A1 (zh) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104317101A (zh) | 2014-11-03 | 2015-01-28 | 京东方科技集团股份有限公司 | 一种背光模组以及显示装置 |
CN104730910A (zh) * | 2015-02-15 | 2015-06-24 | 深圳市华星光电技术有限公司 | 智能手表和弧形液晶屏 |
KR20180006935A (ko) * | 2015-05-13 | 2018-01-19 | 코닝 인코포레이티드 | 감소된 핫스팟을 가진 광 가이드와 그 제조 방법 |
CN105759340A (zh) * | 2016-03-04 | 2016-07-13 | 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 |
CN107436508A (zh) * | 2016-05-25 | 2017-12-05 | 鸿富锦精密工业(深圳)有限公司 | 背光模组及液晶显示装置 |
US10001672B2 (en) * | 2016-10-28 | 2018-06-19 | Citizen Electronics Co., Ltd. | Side edge planar lighting unit |
CN107884869A (zh) * | 2017-11-28 | 2018-04-06 | 合肥泰沃达智能装备有限公司 | 一种防漏光导光板的背光模组 |
CN109471297A (zh) * | 2018-08-21 | 2019-03-15 | 深圳明智超精密科技有限公司 | 一种超薄背光源透镜 |
CN109709638B (zh) * | 2019-01-30 | 2021-01-26 | 京东方科技集团股份有限公司 | 导光板、背光模组、屏幕和电子设备 |
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CN104317101A (zh) * | 2014-11-03 | 2015-01-28 | 京东方科技集团股份有限公司 | 一种背光模组以及显示装置 |
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KR100989338B1 (ko) * | 2003-07-01 | 2010-10-25 | 삼성전자주식회사 | 백라이트 어셈블리 및 이를 갖는 액정표시장치 |
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KR20110134439A (ko) * | 2009-04-03 | 2011-12-14 | 샤프 가부시키가이샤 | 조명 장치, 표시 장치 및 텔레비전 수신 장치 |
JP5493664B2 (ja) * | 2009-10-02 | 2014-05-14 | ウシオ電機株式会社 | 光照射装置 |
KR20120023345A (ko) | 2010-09-03 | 2012-03-13 | 엘지이노텍 주식회사 | 백라이트 유닛 및 그의 제조 방법 |
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2014
- 2014-11-03 CN CN201410608754.5A patent/CN104317101A/zh active Pending
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2015
- 2015-03-20 US US14/785,762 patent/US9874673B2/en active Active
- 2015-03-20 WO PCT/CN2015/074663 patent/WO2016070544A1/zh active Application Filing
Patent Citations (5)
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JP2005010436A (ja) * | 2003-06-18 | 2005-01-13 | Kawaguchiko Seimitsu Co Ltd | バックライト装置 |
JP2007220369A (ja) * | 2006-02-14 | 2007-08-30 | Seiko Instruments Inc | 照明装置及びこれを備える表示装置 |
CN201078649Y (zh) * | 2007-10-10 | 2008-06-25 | 希姆通信息技术(上海)有限公司 | 背光源组件 |
CN102279436A (zh) * | 2011-09-06 | 2011-12-14 | 青岛海信电器股份有限公司 | 导光板、背光模组及显示装置 |
CN104317101A (zh) * | 2014-11-03 | 2015-01-28 | 京东方科技集团股份有限公司 | 一种背光模组以及显示装置 |
Also Published As
Publication number | Publication date |
---|---|
CN104317101A (zh) | 2015-01-28 |
US9874673B2 (en) | 2018-01-23 |
US20160306094A1 (en) | 2016-10-20 |
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