WO2016078120A1 - Plaque de guidage de lumière, module de rétroéclairage et afficheur - Google Patents

Plaque de guidage de lumière, module de rétroéclairage et afficheur Download PDF

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Publication number
WO2016078120A1
WO2016078120A1 PCT/CN2014/092592 CN2014092592W WO2016078120A1 WO 2016078120 A1 WO2016078120 A1 WO 2016078120A1 CN 2014092592 W CN2014092592 W CN 2014092592W WO 2016078120 A1 WO2016078120 A1 WO 2016078120A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
guide plate
light guide
plate
opening
Prior art date
Application number
PCT/CN2014/092592
Other languages
English (en)
Chinese (zh)
Inventor
周革革
Original Assignee
深圳市华星光电技术有限公司
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 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Publication of WO2016078120A1 publication Critical patent/WO2016078120A1/fr

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Classifications

    • 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
    • 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
    • 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
    • G02F1/133604—Direct backlight with lamps
    • 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • 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

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to a light guide plate, a backlight module, and a display.
  • a liquid crystal display device has been widely used as a display component of an electronic device in various electronic products.
  • the frame of the electronic device is designed to be narrower and narrower.
  • the backlight module is an important component in the liquid crystal display device, and the frame of the backlight module is also required to be narrower and narrower.
  • the backlight module of the prior art includes a back plate, a plastic frame, and a light guide plate surrounded by a plastic frame.
  • the light source of the light bar is disposed between the plastic frame and the light incident side of the light guide plate, and the optical film is fixed by the double-sided tape.
  • On the plastic frame it is difficult to ensure the close contact between the light source of the light bar and the light incident side of the light guide plate, which always leaves a gap, resulting in a decrease in the light input efficiency of the light source of the light bar and the light guide plate.
  • the technical problem to be solved by the present invention is to provide a light guide plate, a backlight module and a display, so that the light source of the light bar of the backlight module is in close contact with the light incident side of the light guide plate.
  • the present invention provides a light guide plate, the light guide plate includes a plate body and a plurality of receiving grooves, the plate body includes a light incident side and a non-light incident side, and the plurality of receiving grooves are linearly arranged on the light incident side.
  • An edge, and penetrating the plate body; each of the receiving grooves is provided with an opening, the opening allows the receiving groove to communicate with the outside, and elastic arms are formed on both sides of the opening, each of the elastic arms facing A push block is protruded in the receiving groove.
  • one surface of the plate body is provided with a light homogenizing structure, so that the light emitted by the light guide plate is The other surface opposite the surface is coated with a reflective coating.
  • the accommodating groove includes two opposite groove side walls, and the opening is opened on a side wall of the groove away from the plate body, and the pushing block faces the other groove side wall opposite to the opening.
  • the present invention provides a backlight module including a back plate, a light bar light source, an optical film, and a light guide plate.
  • the light guide plate includes a plate body and a plurality of receiving grooves, and the plate body includes a light incident side and a non-light incident side.
  • the plurality of receiving grooves are linearly arranged on the light-incident side edge and penetrate the plate body; each of the receiving grooves is provided with an opening, the opening allows the receiving groove to communicate with the outside and is located
  • An elastic arm is formed on each side of the opening, and each of the elastic arms is convexly disposed toward the receiving groove; the light guide plate, the light bar light source and the optical film are disposed on the back plate, and the lamp is disposed on the back plate a light source is inserted into the accommodating groove, and the push block on the elastic arm abuts the light source of the light bar, so that the light source of the light bar is in close contact with the light guide direction of the light guide plate in the accommodating groove a light plate, the optical film being laminated with the light guide plate.
  • the present invention provides a backlight module including a back plate, a light bar light source, an optical film, and a light guide plate.
  • the light guide plate includes a plate body and a plurality of receiving grooves, and the plate body includes a light incident side and a non-light incident side.
  • the plurality of receiving grooves are linearly arranged on the light-incident side edge and penetrate the plate body; each of the receiving grooves is provided with an opening, the opening allows the receiving groove to communicate with the outside and is located
  • An elastic arm is formed on each side of the opening, and each of the elastic arms is convexly disposed toward the receiving groove; the light guide plate, the light bar light source and the optical film are disposed on the back plate, and the lamp is disposed on the back plate a light source is inserted into the accommodating groove, and the push block on the elastic arm abuts the light source of the light bar, so that the light source of the light bar is in close contact with the light guide direction of the light guide plate in the accommodating groove a light plate, the optical film is laminated with the light guide plate; wherein one surface of the plate body is provided with a light homogenizing structure, such that the light guided by the light guide plate is uniform, and the other surface opposite to the surface It is coated with a reflective coating.
  • the present invention provides a backlight module including a back plate, a light bar light source, an optical film, and a light guide plate.
  • the light guide plate includes a plate body and a plurality of receiving grooves, and the plate body includes a light incident side and a non-light incident side.
  • the plurality of receiving grooves are linearly arranged on the light-incident side edge and penetrate the plate body; each of the receiving grooves is provided with an opening, the opening allows the receiving groove to communicate with the outside and is located
  • An elastic arm is formed on each side of the opening, and each of the elastic arms is convexly disposed toward the receiving groove; the light guide plate, the light bar light source and the optical film are disposed on the back plate, and the lamp is disposed on the back plate a light source is inserted into the accommodating groove, and the push block on the elastic arm abuts the light source of the light bar, so that the light source of the light bar is in close contact with the light guide direction of the light guide plate in the accommodating groove a light plate, the optical film is laminated with the light guide plate, wherein the housing
  • the slot includes two opposite slot sidewalls, the opening is formed in a slot sidewall away from the board, and the push block faces the other slot sidewall opposite the opening.
  • the light bar light source includes a light emitting surface having a backlight area opposite to the backlight surface, and the protrusion abuts the backlight surface, and the light emitting surface is in close contact with the light guide plate.
  • the back plate includes a bottom plate and a side plate, and the optical film is fixed to the side walls of the light guide plate and the back plate by double-sided tape.
  • a reflective sheet is disposed between the bottom plate and the light guide plate.
  • the present invention provides a display, a backlight module and a liquid crystal panel.
  • the backlight module includes a back plate, a light bar light source, an optical film, and a light guide plate.
  • the light guide plate includes a plate body and a plurality of receiving slots, and the plate The body includes a light incident side and a non-light incident side, and the plurality of receiving grooves are linearly arranged on the light incident side edge and penetrate the plate body; each of the receiving grooves is provided with an opening, and the opening is provided
  • the accommodating groove is connected to the outside, and the elastic arms are formed on both sides of the opening, and each of the elastic arms protrudes toward the accommodating groove; the light guide plate, the light bar light source and the optical film are disposed On the backplane, the light bar light source is inserted into the receiving groove, and the push block on the elastic arm abuts the light bar light source, so that the light bar light source is in the receiving groove to the
  • the light guide plate is in close contact with the light guide plate,
  • the light bar light source of the backlight module of the present invention is installed in the receiving groove of the light guide plate, and pushes the light bar light source through the push block provided in the receiving groove, so that the light emitting surface of the light bar light source is tight on the light entering side.
  • the light guide plate is contacted, thereby greatly ensuring the tightness of the light bar light source and the light guide plate, and improving the light entering efficiency.
  • FIG. 1 is a schematic structural view of a light guide plate in a preferred embodiment of the present invention.
  • Fig. 2 is an enlarged schematic view showing a portion II of the light guide plate shown in Fig. 1.
  • FIG 3 is a schematic cross-sectional view of a backlight module of the present invention.
  • a preferred embodiment of the present invention provides a light guide plate 10 including a plate body 11 and a plurality of receiving slots 13 including a light incident side 111 and a non-light incident side. (Figure is not marked).
  • the plurality of receiving grooves 13 are linearly arranged on the edge of the light incident side 111 and penetrate the plate body 10.
  • Each of the accommodating grooves 13 is provided with an opening 14 that communicates the accommodating groove 13 with the outside, and forms elastic arms 15 on both sides of the opening 14, each of the elastic arms 15 facing the A push block 16 is convexly disposed in the accommodating groove 13.
  • the light guide plate 10 is a rectangular plate body, and the receiving groove 13 includes two opposite groove side walls 131, and the opening 14 is opened on the groove side wall 131 away from the plate body 11.
  • the push block 16 faces the other slot side wall 131 opposite the opening 14.
  • one surface of the plate body 11 is provided with a light homogenizing structure, so that the light guided by the light guide plate 10 is uniform, and the other surface opposite to the surface is coated with a reflective coating (not shown). ).
  • a preferred embodiment of the present invention further provides a backlight module including a light guide plate 10 , a back plate 20 , a light bar light source 30 , and an optical film 40 .
  • the light guide plate 10, the light bar light source 30 and the optical film 40 are disposed on the back plate 20, the light bar light source 30 is inserted into the receiving groove 13, and the push block 16 on the elastic arm 15 is resisted.
  • the light bar light source 30 is arranged such that the light bar light source 30 is in the light receiving direction of the light guide plate 10 in the light receiving direction of the light guide plate 10, and the optical film 40 is laminated with the light guide plate 10. Settings.
  • the back plate 20 includes a bottom plate 21 and a side plate 22 disposed around the bottom plate 21.
  • the bottom plate 21 and the side plate 22 enclose a receiving space for receiving the light guide plate 10 , the light bar light source 30 , and the optical film 40 .
  • the light guide plate 10 is stacked on the bottom plate 21 .
  • a reflective sheet 90 is disposed between the bottom plate 21 and the light guide plate 10.
  • the light guide plate 10 is fixed to the side plate 22 by a double-sided tape 60.
  • the light bar light source 30 includes a light emitting surface 32 opposite to the backlight surface 31 of the backlight surface 31.
  • the protrusion 16 abuts the backlight surface 31, and the light emitting surface 32 is in close contact with the light guide plate 10.
  • the accommodating groove 13 is disposed on the light incident side 111 of the light guide plate 10 , and the light emitting surface 32 is in close contact with the light guide plate 10 on the light incident side.
  • the optical film 40 can be of various types of stacked arrangements such as a diffusion sheet, a prism sheet, a polarizer, and the like.
  • the optical film 40 is fixed by the side wall 22 of the double-sided tape 50.
  • the double-sided tape 50 is attached to the peripheral edge of the optical film 40 and the end surface of the side wall 22 to fix the optical film 40.
  • the light bar light source 30 of the backlight module of the present invention is installed in the accommodating groove 13 of the light guide plate 10, and pushes the light bar light source 30 through the push block 16 disposed in the accommodating groove 13, so that the light bar light source 30 is
  • the light-emitting surface 32 closely contacts the light guide plate 10 on the light-incident side, thereby greatly ensuring the tightness of the light-strip light source 30 and the light guide plate 10, and improving the light-in efficiency.
  • the present invention also provides a display, the display includes the backlight module and the liquid crystal panel, the liquid crystal panel is disposed on the backlight module, and the liquid crystal panel passes between the optical film 40 and the optical film 40
  • the double-sided tape 50 is fixed.

Landscapes

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

Abstract

La présente invention concerne une plaque de guidage de lumière (10) qui comprend un corps de plaque (11) et de multiples rainures de logement (13). Le corps de plaque (11) comprend un côté à incidence de la lumière (111) et un un côté sans incidence de la lumière. Les rainures de logement (13) sont disposés de manière linéaire sur le bord du côté à incidence de la lumière (111) et pénètrent dans le corps de plaque (11). Chaque rainure de logement (13) est pourvue d'une ouverture (14) qui met en communication la rainure de logement (13) avec l'extérieur, des bras élastiques (15) sont formés sur les deux côtés de chaque ouverture (14), et un bloc de poussée est disposé en saillie en correspondance d'une position de chaque bras élastique (15) faisant face à la rainure de logement correspondante (13). Cette invention concerne également un module de rétroéclairage et un afficheur. La plaque de guidage de lumière assure l'étanchéité entre une source lumineuse à bande et la plaque de guidage de lumière et améliore l'efficacité d'incidence de la lumière.
PCT/CN2014/092592 2014-11-17 2014-11-29 Plaque de guidage de lumière, module de rétroéclairage et afficheur WO2016078120A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410655764.4 2014-11-17
CN201410655764.4A CN104375232A (zh) 2014-11-17 2014-11-17 导光板、背光模组及显示器

Publications (1)

Publication Number Publication Date
WO2016078120A1 true WO2016078120A1 (fr) 2016-05-26

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PCT/CN2014/092592 WO2016078120A1 (fr) 2014-11-17 2014-11-29 Plaque de guidage de lumière, module de rétroéclairage et afficheur

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CN (1) CN104375232A (fr)
WO (1) WO2016078120A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112133204A (zh) * 2020-10-26 2020-12-25 深圳Tcl新技术有限公司 背光模组和显示设备
US10908352B1 (en) * 2019-08-15 2021-02-02 K-Tronics (Suzhou) Technology Co., Ltd. Back plate including receiving slots back plate assembly, backlight module and display device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105652360A (zh) * 2016-01-04 2016-06-08 合肥京东方显示光源有限公司 导光结构、背光源及显示装置
CN110211488B (zh) * 2019-05-09 2021-08-13 安徽赛迈特光电股份有限公司 量子点背光源及具有它的车载显示屏

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CN101029993A (zh) * 2006-01-25 2007-09-05 三星电子株式会社 背光组件以及具有该背光组件的液晶显示装置
CN200955715Y (zh) * 2006-09-29 2007-10-03 台湾奈普光电科技股份有限公司 光源固定装置
US7997784B2 (en) * 2009-05-12 2011-08-16 Global Lighting Technologies (Taiwan) Inc. Light guide apparatus of backlight module
CN202815259U (zh) * 2012-10-15 2013-03-20 京东方科技集团股份有限公司 一种导光板、背光模组及显示器件
US20130163282A1 (en) * 2011-12-22 2013-06-27 Minebea Co., Ltd. Spread illuminating apparatus
CN203442612U (zh) * 2013-09-12 2014-02-19 深圳Tcl新技术有限公司 背光模组和液晶显示装置

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CN101487943B (zh) * 2008-01-17 2013-04-24 奇美电子股份有限公司 背光模块及应用其的液晶显示器
CN102175002A (zh) * 2011-03-16 2011-09-07 深圳市华星光电技术有限公司 背光模块及显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101029993A (zh) * 2006-01-25 2007-09-05 三星电子株式会社 背光组件以及具有该背光组件的液晶显示装置
CN200955715Y (zh) * 2006-09-29 2007-10-03 台湾奈普光电科技股份有限公司 光源固定装置
US7997784B2 (en) * 2009-05-12 2011-08-16 Global Lighting Technologies (Taiwan) Inc. Light guide apparatus of backlight module
US20130163282A1 (en) * 2011-12-22 2013-06-27 Minebea Co., Ltd. Spread illuminating apparatus
CN202815259U (zh) * 2012-10-15 2013-03-20 京东方科技集团股份有限公司 一种导光板、背光模组及显示器件
CN203442612U (zh) * 2013-09-12 2014-02-19 深圳Tcl新技术有限公司 背光模组和液晶显示装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10908352B1 (en) * 2019-08-15 2021-02-02 K-Tronics (Suzhou) Technology Co., Ltd. Back plate including receiving slots back plate assembly, backlight module and display device
CN112133204A (zh) * 2020-10-26 2020-12-25 深圳Tcl新技术有限公司 背光模组和显示设备

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