WO2017008342A1 - 液晶显示装置及其背光模组 - Google Patents

液晶显示装置及其背光模组 Download PDF

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Publication number
WO2017008342A1
WO2017008342A1 PCT/CN2015/085585 CN2015085585W WO2017008342A1 WO 2017008342 A1 WO2017008342 A1 WO 2017008342A1 CN 2015085585 W CN2015085585 W CN 2015085585W WO 2017008342 A1 WO2017008342 A1 WO 2017008342A1
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WIPO (PCT)
Prior art keywords
emitting element
light
light emitting
backlight module
holder
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.)
Ceased
Application number
PCT/CN2015/085585
Other languages
English (en)
French (fr)
Inventor
萧宇均
陈仕祥
阙成文
李德华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
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 Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/897,337 priority Critical patent/US10451789B2/en
Publication of WO2017008342A1 publication Critical patent/WO2017008342A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02F1/133305—Flexible substrates, e.g. plastics, organic film
    • 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
    • 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
    • G02B6/0045—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 by shaping at least a portion of the light guide
    • 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
    • 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
    • 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
    • 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
    • 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/009—Positioning aspects of the light source in the package
    • 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
    • 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
    • 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
    • G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light

Definitions

  • the invention relates to a liquid crystal display technology, in particular to a liquid crystal display device and a backlight module thereof.
  • the liquid crystal display device includes a liquid crystal panel.
  • the liquid crystal panel includes a backlight and a liquid crystal screen covering the backlight.
  • the backlight module is used as a light source of the liquid crystal panel.
  • the backlight module generally includes a light guide plate and a strip-shaped light-emitting element disposed on a side of the light guide plate.
  • the liquid crystal screen is covered on the backlight module from the light emitting surface side of the light guide plate.
  • the light emitting element may be a quantum dot tube or a cold cathode tube.
  • other light sources such as light-emitting diodes
  • the light emitted from the quantum tube enters the light guide plate from one side surface of the light guide plate, that is, the light incident surface of the light guide plate, and is emitted from one plate surface of the light guide plate, that is, the light exit surface of the light guide plate, and enters the liquid crystal panel.
  • the LCD screen displays graphics and colors by modulating the light emitted from the light guide.
  • the flat picture received by the retina of the human eye is physically "distorted", and the "twisted” picture needs to be converted into a flat picture in the brain.
  • the picture displayed on the curved LCD screen which is basically the same as the curvature of the eye, can be directly mapped into the brain, and the audience feels more comfortable and more natural.
  • the curved liquid crystal screen is curved, and the light guide plate also needs to be bent into an arcuate plate having the same curvature as the liquid crystal screen.
  • the light-emitting elements also need to be bent into an arc of the same curvature to obtain a better display effect.
  • the strip-shaped light-emitting elements are usually products in which the outer casing is a glass tube.
  • a quantum tube is a structure in which a quantum dot is encapsulated by a straight glass tube; and a cold cathode tube is used to encapsulate a high-efficiency three-primary phosphor in a hard glass tube.
  • the production of strip-shaped light-emitting elements with specific curvature is complicated and costly, and the production of straight-line light-emitting elements is simple in process, high in yield, and low in cost.
  • the technical problem to be solved by the present invention is how to apply a straight strip-shaped light-emitting element to a backlight module of a curved liquid crystal display device and obtain a good display effect.
  • a backlight module which includes:
  • a holder provided with an arcuate strip groove and accommodating the first light emitting element
  • a light guide plate disposed outside the holder and provided with an arcuate end surface facing the first light emitting element
  • the curved end surface is aligned with the curved strip groove.
  • the first illuminating element has a straight strip shape, and both ends of the first illuminating element are respectively aligned with the ends of the arc strip groove.
  • the holder is a tubular member that is parallel to the first illuminating element.
  • the first illuminating element covers the arcuate strip groove.
  • the arcuate strip grooves are fitted by a plurality of straight grooves that are sequentially connected along an arc.
  • the holder further includes a fixture for securing the first illuminating element.
  • the plurality of fixing members are arranged at intervals in the extending direction of the first light emitting element.
  • the fixture is configured as a flat plate that is perpendicular to the first illuminating element and that is passed by the first illuminating element.
  • the first illuminating element is a quantum tube
  • the backlight module further includes a second illuminating element disposed outside the holder for exciting the first illuminating element, the holder further comprising the first a light entrance port between the light emitting element and the second light emitting element.
  • the present invention also proposes a liquid crystal display device comprising the backlight module as described above.
  • the light emitted by the first illuminating element passes through the arcuate strip groove to enter the light guide plate.
  • the arcuate groove of the holder is formed as an arc-shaped light exit port, and the light exit port is aligned with the curved end face of the light guide plate.
  • the curved end surface is the light incident surface of the light guide plate, and the shape of the light exit opening of the holder matches the shape of the light incident surface of the light guide plate, so that the light emitted by the first light emitting element passes through the curved groove and is injected into the shape
  • the light of the light guide plate is more evenly distributed on the curved end faces.
  • the light intensity distribution is more uniform throughout the curved end face, and the light coupling efficiency (the light coupling efficiency refers to the utilization of the light emitted by the first light emitting element) is improved, thereby obtaining a liquid crystal display device using the backlight module. Good display effect.
  • the backlight module due to the shape of the backlight module to the first light-emitting element The requirement is low, and thus the backlight module can select a low-cost first light-emitting element to reduce the production cost.
  • FIG. 1 is a schematic exploded view of a backlight module according to a first embodiment of the present invention
  • FIG. 2 is a schematic cross-sectional view showing the backlight module of FIG. 1;
  • Figure 3 shows a partial enlarged view of A in Figure 2;
  • Fig. 4 shows a perspective view of a holder of a second embodiment of the invention.
  • Fig. 1 shows a backlight module 1 of a first embodiment of the present invention.
  • the backlight module 1 includes a light guide plate 6, a holder 2, a first light-emitting element 3, a light bar 4 (shown in FIG. 2), and a back plate 5.
  • the light guide plate 6 is an arc panel.
  • the light guide plate 6 includes a strip-shaped curved end surface 13.
  • the curved end face 13 is an elongated planar structure that extends along an arc.
  • the light guide plate 6 may be a plate-shaped structure formed by a curved end surface 13 that translates in a direction perpendicular to the curved end surface 13 and is translated by the curved end surface 13.
  • the light guide plate 6 is a bent rectangular plate structure.
  • the distance between the opposite curved sides of the curved end face 13 is uniform.
  • the curved edge can be an elliptical arc or an arc.
  • the light guide plate 6 is usually made of a transparent material having a relatively high refractive index.
  • the transparent material can be an optical grade polymethyl methacrylate.
  • One plate surface of the light guide plate 6, that is, the first plate surface is formed as a light-emitting surface
  • the other plate surface that is, a surface facing the first plate surface
  • Other surfaces of the light guide plate 6, such as the respective side faces, the first plate face, and the like, are very smooth except for the second plate surface.
  • portions of the second plate surface of the light guide plate 6 are convex outwardly to form dense reflective mesh dots.
  • One of the curved end faces 13 of the light guide plate 6 is a light incident surface.
  • the curved end face 13 is preferably a flat surface.
  • the holder 2 has a generally tubular configuration.
  • the holder 2 includes a partition 7.
  • the partition 7 is preferably constructed in a strip structure.
  • the partition 7 is more preferably a rectangular plate.
  • the partition 7 is provided with an arcuate strip groove 8.
  • the shape of the cross section perpendicular to the depth direction of the curved strip groove 8 is similar to the shape of the light incident surface of the light guide plate 6.
  • the curved strip groove 8 extends through the partition 7. Both ends of the curved strip groove 8 extend toward both ends of the partition plate 7, respectively.
  • One plate surface of the partition plate 7 abuts against the light incident surface of the light guide plate 6, and the arcuate strip groove 8 is aligned with the light incident surface.
  • the first light-emitting element 3 is constructed in a straight strip structure.
  • the first light-emitting element 3 abuts against the other plate surface of the separator 7.
  • the first light emitting element 3 may be a cold cathode tube.
  • the first light-emitting element 3 is a quantum tube.
  • Quantum tubes include straight glass tubes and numerous quantum dots.
  • the quantum dots are encapsulated in a straight glass tube.
  • the quantum dots may be semiconductor nanoparticles composed of Group II-VI or Group III-V elements. Quantum dots can emit fluorescence after being stimulated. Quantum dots of the same type and size emit a very narrow peak of the fluorescence wavelength.
  • the high-saturation monochromatic light can be obtained when the fluorescence passes through the color filter of the liquid crystal display device.
  • the frequencies of different kinds of quantum dots cover the visible light spectrum.
  • a liquid crystal display device using a quantum tube as a light source has a wide color gamut.
  • the light bar 4 includes a bottom plate 9 and a second light emitting element 10.
  • the bottom plate 9 is disposed on the side of the first light-emitting element 3 facing away from the partition 7.
  • the second light-emitting element 10 is disposed on a plate surface of the bottom plate 9 facing the first light-emitting element 3.
  • the light emitted by the second light-emitting element 10 is used to excite the quantum tube to emit light.
  • the backplane 9 can be a printed circuit board.
  • the bottom plate 9 is preferably a flexible printed circuit board.
  • the second light emitting element 10 may be a light emitting diode.
  • the bottom plate 9 is a strip-shaped plate-like structure, and the extending direction of the bottom plate 9 is parallel to the extending direction of the first light-emitting element 3, and the plurality of second light-emitting elements 10 spaced apart from each other are evenly distributed along the extending direction of the bottom plate 9. .
  • the plurality of second light-emitting elements 10 excite the quantum tubes, the brightness of the quantum tubes is uniform throughout.
  • the light bar 4 is disposed adjacent to the first light-emitting element 3, and the bottom plate 9 is provided with the plate surface of the light bar 4 facing the first light-emitting element 3.
  • the bottom plate 9 is more preferably a rectangular plate.
  • the holder 2 includes a light entrance 15 disposed between the second light emitting element 10 and the first light emitting element 3.
  • the first light-emitting element 3 is a quantum tube
  • the second light-emitting element 10 emits light to the first light-emitting element 3, and the light passes through the light-inlet opening 15 to inspire the first light-emitting element 3 to emit light.
  • the light emitted from the first light-emitting element 3 can only pass through the curved strip groove 8 to enter the light guide plate 6.
  • the arcuate strip groove 8 on the partition plate 7 is formed as an arc-shaped light exit opening which is aligned with the curved end surface 13 of the light guide plate 6.
  • the alignment deviation caused by the fitting of the straight-shaped first light-emitting element 3 and the light-incident surface of the light guide plate 6 is reduced, and the light incident on the light guide plate 6 through the curved end surface 13 is distributed on the curved end surface 13. Uniform, the illuminance of the curved end face 13 is more uniform, which improves the optical coupling efficiency.
  • the liquid crystal display device using the backlight module 1 can obtain a good display effect.
  • the second light-emitting element 10 is a light-emitting diode that emits blue light
  • the first light-emitting element 3 includes two kinds of quantum dots that can be excited by blue light to emit green light and red light, respectively.
  • part of the blue light emitted by the light emitting diode is absorbed by the two quantum dots in the first light emitting element 3, and the two quantum dots then emit green and red light, and the red, green and blue light colors are mixed in the quantum tube.
  • White light is incident on the light guide plate 6.
  • both ends of the first light-emitting element 3 are respectively aligned with the both ends of the arcuate strip groove 8 of the spacer 7.
  • the light passing through the curved strip groove 8 is uniformly distributed in the cross section perpendicular to the depth direction of the curved strip groove 8, and the light entering the curved end surface 13 is more uniformly distributed in the light guide plate 6, and the display of the liquid crystal display device is displayed. better result.
  • the first light-emitting element 3 abuts against the partition 7 and covers the curved strip groove 8 of the partition 7.
  • the light passing through the curved strip groove 8 is uniformly distributed in the cross section perpendicular to the depth direction of the curved strip groove 8, and the light entering the curved end surface 13 is more uniformly distributed in the light guide plate 6, and the display of the liquid crystal display device is displayed. better result.
  • the gap between the three is leaked into the light guide plate 6 to cause the screen display color distortion on the liquid crystal display.
  • the holder 2 further comprises a fixing member 12 for fixing the first light-emitting element 3.
  • the fixing member 12 is disposed on a side of the partition plate 7 close to the first light emitting element 3.
  • the fixing member 12 is connected to the partition plate 7.
  • a plurality of fixing members 12 are disposed on the partition plate 7 in order along the extending direction of the partition plate 7. This is equivalent to an increase in the number of fulcrums supporting the first light-emitting element 3, and the force of the first light-emitting element 3 is more reasonable.
  • the fixing member 12 is configured as a flat plate perpendicular to the extending direction of the partition plate 7 and provided with a through hole, which is perpendicular to the plate surface of the partition plate 7, and the through holes of the plurality of fixing members 12 are aligned.
  • the first light-emitting element 3 is inserted into the plurality of through holes to be fixed by the fixing member 12.
  • the fixing member 12 since the fixing member 12 is perpendicular to the partition plate 7, the fixing member 12 also functions as a reinforcing rib to reinforce the structural strength of the holder 2.
  • the partition 7 is elongated, and the holder 2 further includes two side panels 11. Both of the side panels 11 have a long strip-like structure.
  • the two side plates 11 are parallel to each other.
  • Two side panels 11 project from both sides of the partition 7 and are perpendicular to the partition 7.
  • the direction in which the two side plates 11 extend is the same as the direction in which the partition plate 7 extends.
  • the two side plates 11 and the partition plate 7 form a groove-shaped member that accommodates the first light-emitting element 3 and has a groove shape in cross section.
  • the side plates 11 of the holder 2 block the light from exiting from both sides to prevent the holder 2 from leaking light from both sides.
  • the first light-emitting element 3 is housed in the holder 2, and all three sides of the first light-emitting element 3 are blocked, so that it is less susceptible to bumping.
  • the first light-emitting element 3 is a quantum tube
  • the light strip 4 is disposed on a side of the holder 2 facing away from the partition 7.
  • the bottom plate 9 of the light bar 4 covers the holder 2 from the side of the holder 2 facing away from the bottom plate 9.
  • the bottom plate 9 abuts against the side faces of the two side plates 11 facing away from the partition plate 7.
  • the bottom plate 9 is parallel to the partition 7.
  • the bottom plate 9, the two side walls and the partition 7 form a tubular structure accommodating the first light-emitting element 3.
  • the second light-emitting element 10 on the light bar 4 faces the first A light-emitting element 3.
  • the holder 2 and the bottom plate 9 can block the light emitted by the first light-emitting element 3 and the light emitted by the second light-emitting element 10, and the light can only be emitted from the curved strip groove 8, thereby preventing the backlight module 1 from leaking light.
  • the first light-emitting element 3 is housed in the tubular structure formed by the light bar 4 and the holder 2, and the quantum tube is not easily damaged by bumping.
  • the surface of the holder 2 facing the first light-emitting element 3 is white.
  • the light emitted by the first light-emitting element 3 has a high reflectance on the white surface of the holder 2, and some of the light rays from the first light-emitting element 3 toward the holder 2 toward the surface of the first light-emitting element 3 It will be reflected toward the curved strip groove 8 and then from the curved strip groove 8. Thereby, the utilization of light and the brightness of the light-emitting surface of the light guide plate 6 are improved.
  • the surface of the holder 2 facing the first light-emitting element 3 is provided as a mirror surface.
  • the mirror surface is used to reflect the light emitted by the first light-emitting element 3 toward the curved strip groove 8. Further, the utilization of light and the brightness of the light-emitting surface of the light guide plate 6 are improved.
  • the holder 2 is divided into two sections that are butted against each other. This has the advantage that the holder 2 can be assembled to the first illuminating element 3 in sequence when it is assembled with the first illuminating element 3 in order to facilitate assembly of the holder 2 with the first illuminating element 3.
  • the backing plate 5 has a substantially curved plate structure.
  • the light guide plate 6 is mounted on the curved back plate 5, and the second plate surface of the light guide plate 6 is adjacent to the back plate 5.
  • the back plate 5 is for supporting the light guide plate 6.
  • the holder 2 and the light bar 4 are both mounted at the bottom end of the back plate 5 and are fixed opposite to the back plate 5.
  • the present invention also provides a backlight module of the second embodiment.
  • the backlight module of the second embodiment differs from the backlight module 1 of the first embodiment only in the structure of the spacers of the two. For the sake of brevity, only the spacer 7a of the second embodiment will be described below.
  • the backlight module of the second embodiment of the present invention includes a holder 2a.
  • the holder 2a includes a partition 7a.
  • a plurality of straight grooves 14 are provided in the partition 7a.
  • the plurality of straight grooves 14 are sequentially butted along the arc so that the plurality of straight grooves 14 fit the curved groove 8a.
  • the plurality of straight grooves 14 may be parallel to each other. Such a straight groove 14 is easily processed.

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Abstract

一种液晶显示装置及其背光模组。背光模组（1）包括：第一发光元件（3），夹持器（2）和导光板（6）。夹持器（2）设置有弧形条槽（8）且容纳第一发光元件（3）。导光板（6）设置在夹持器（2）外且设置有朝向第一发光元件（3）的弧形端面（13）。弧形端面（13）与弧形条槽（8）对应对齐。液晶显示装置包括背光模组（1）。设置有背光模组（1）的曲面液晶显示装置可以获得良好的显示效果。

Description

液晶显示装置及其背光模组
相关申请的交叉引用
本申请要求享有于2015年7月14日提交的名称为“液晶显示装置及其背光模组”的中国专利申请CN 201510414116.4的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本发明涉及一种液晶显示技术，特别涉及液晶显示装置及其背光模组。
背景技术
液晶显示装置包括液晶面板。液晶面板包括背光源以及覆盖在背光源上的液晶屏。背光模组用作液晶面板的光源。背光模组通常包括导光板以及设置在导光板侧面的条形的发光元件。液晶屏从导光板的出光面一侧覆盖在背光模组上。发光元件可以是量子管(quantum dots tube)或冷阴极管。对于量子管，可以采用其他的光源(例如发光二极管)照射量子管以激发量子管内的量子点发光。量子管发出的光线从导光板的一个侧面、即导光板的入光面射入导光板，从导光板的一个板面、即导光板的出光面射出而进入到液晶屏内。液晶屏通过对导光板射出的光线进行调制来显示图形和色彩。
由于眼球的特殊构造，人眼视网膜接收到的平面画面在物理上是“扭曲”的，在大脑中需要将“扭曲”的画面再转换成平面画面。而与眼球弧度基本一致的弧面液晶屏上所显示的画面能直接映射到大脑中，观众的感受更舒适、更自然。
曲面液晶屏是弧面的，导光板也需要弯折成与液晶屏曲率相同的弧形板。这样，在侧入式的背光模组中，发光元件也需要被弯折成相同曲率的弧形才能获得较好的显示效果。但是，条形的发光元件通常为外壳为玻璃管的产品。例如：量子管是采用直玻璃管封装量子点的结构；冷阴极管采用硬质玻璃管封装高光效三基色荧光粉。生产特定曲率的条形发光元件工艺复杂、成本高昂，而生产直条形的发光元件工艺简单、合格率高、成本较低。
发明内容
本发明所要解决的技术问题为如何将直条形的发光元件应用于弧面液晶显示装置的背光模组且能获得良好的显示效果。
针对上述技术问题，本发明提出了一种背光模组，其包括：
第一发光元件；
设置有弧形条槽且容纳第一发光元件的夹持器；
设置在夹持器外且设置有朝向第一发光元件的弧形端面的导光板；
其中，弧形端面与弧形条槽对应对齐。
在一个具体的实施例中，第一发光元件为直条形，第一发光元件的两端分别与弧形条槽的两端对齐。
在一个具体的实施例中，夹持器为与第一发光元件的平行的管形件。
在一个具体的实施例中，第一发光元件覆盖弧形条槽。
在一个具体的实施例中，弧形条槽由沿弧线依次连接的多个直条槽拟合而成。
在一个具体的实施例中，夹持器还包括用于固定第一发光元件的固定件。
在一个具体的实施例中，固定件为多个，多个固定件沿第一发光元件的延伸方向依次间隔排列。
在一个具体的实施例中，固定件构造成垂直于第一发光元件且被所述第一发光元件穿过的平板。
在一个具体的实施例中，第一发光元件为量子管，背光模组还包括设置在夹持器外且用于激发第一发光元件的第二发光元件，夹持器还包括设置在第一发光元件与第二发光元件之间的入光口。
本发明还提出了一种液晶显示装置，其包括如上所述的背光模组。
第一发光元件发出的光线从弧形条槽穿过从而进入到导光板。夹持器的弧形条槽形成为弧线形的出光口，这个出光口与导光板的弧形端面对齐。弧形端面为导光板的入光面，夹持器的出光口的形状与导光板的入光面的形状相匹配，这样，第一发光元件发出的光线穿过弧形条槽而射入到导光板的光线在弧形端面上分布更均匀。弧形端面各处的光照强度分布更均匀，光耦合效率(光耦合效率是指第一发光元件发出的光线的利用率)提升，由此，采用这种背光模组的液晶显示装置可以获得较好的显示效果。同时，由于这种背光模组对第一发光元件的形状 要求低，由此这种背光模组可以选用低成本的第一发光元件来降低生产成本。
附图说明
在下文中将基于实施例并参考附图来对本发明进行更详细的描述。其中：
图1显示了本发明的第一种实施方式的背光模组的拆解示意图；
图2显示了图1中的背光模组的全剖示意图；
图3显示了图2中的A处的局部放大图；
图4显示了本发明的第二种实施方式的夹持器的立体示意图。
在附图中，相同的部件使用相同的附图标记。附图并未按照实际的比例绘制。
具体实施方式
下面将结合附图对本发明作进一步说明。
图1显示了本发明的第一种实施方式的背光模组1。背光模组1包括导光板6、夹持器2、第一发光元件3、灯条4(如图2所示)以及背板5。
如图2所示，导光板6为弧面板。导光板6包括一个条状的弧形端面13。弧形端面13为长条状的平面结构，其沿弧线延伸。导光板6可以是由弧形端面13向垂直于该弧形端面13方向平移，由该弧形端面13平移的轨迹形成的板形结构。这样，导光板6为弯折的矩形板状结构。优选地，该弧形端面13相对的两条弧形边之间的距离均匀。该弧形边可以是椭圆弧，也可以是圆弧。导光板6通常由折射率较高的透明材料制成。该透明材料可以是光学级的聚甲基丙烯酸甲酯。导光板6的一个板面、即第一板面形成为出光面，另一板面、即与第一板面相对的面为第二板面。除第二板面外，导光板6的其它表面，例如各个侧面、第一板面等均非常光滑。优选地，导光板6的第二板面上的一些部分向外凸出，从而形成密集的反光网点。导光板6的其中一个弧形端面13为入光面。弧形端面13优选为平面。
如图3所示，夹持器2呈大致的管状结构。夹持器2包括隔板7。隔板7优选为构造成长条结构。隔板7更优选地为矩形板。隔板7设置有弧形条槽8。弧形条槽8垂直于其深度方向的截面的形状与导光板6的入光面的形状相近。弧形条槽8贯穿隔板7。弧形条槽8的两端分别向隔板7的两端延伸。隔板7的一个板面抵接于导光板6的入光面，并使得弧形条槽8与该入光面对齐。
第一发光元件3构造为直条结构。第一发光元件3抵接于隔板7的另一个板面。第一发光元件3可以是冷阴极管。在本实施例中，第一发光元件3为量子管。量子管包括直玻璃管以及众多的量子点。量子点被封装在直玻璃管内。量子点可以是由II-VI族或III-V族元素组成的半导体纳米颗粒。量子点在受激后可以发射荧光。种类及尺寸相同的量子点发出的荧光波长的波峰非常窄。该荧光穿过液晶显示装置的彩色滤光片时可以获得高饱和度的单色光。同时，不同种类的量子点的频率覆盖可见光光谱。由此，采用量子管作为光源的液晶显示装置的色域广。
灯条4包括底板9以及第二发光元件10。底板9设置在第一发光元件3背离隔板7的一侧。第二发光元件10设置在底板9朝向第一发光元件3的一个板面上。第二发光元件10发出的光线用于激发量子管发光。底板9可以是印刷电路板。底板9优选为柔性印刷电路板。第二发光元件10可以是发光二极管。优选地，底板9为条形的板状结构，底板9的延伸方向与第一发光元件3的延伸方向平行，多个彼此相互间隔开来的第二发光元件10沿底板9的延伸方向均匀分布。这样，多个第二发光元件10激发量子管时，量子管各处亮度均匀。灯条4靠近第一发光元件3设置，底板9设置有灯条4的板面朝向第一发光元件3。底板9更优选为矩形板。
夹持器2包括设置在第二发光元件10与第一发光元件3之间入光口15。当第一发光元件3为量子管时，第二发光元件10向第一发光元件3发出光线，这些光线穿过入光口15进而激发第一发光元件3发光。第一发光元件3发出的光线只能从弧形条槽8穿过从而进入到导光板6。隔板7上的弧形条槽8形成为弧线形的出光口，这个出光口与导光板6的弧形端面13对齐。这样就降低了直条形的第一发光元件3与导光板6的入光面配合所引起的对位偏差，穿过弧形端面13射入到导光板6的光线在弧形端面13上分布均匀，弧形端面13各处的光照度更均匀，提升了光耦合效率。采用这种背光模组1的液晶显示装置可以获得很好的显示效果。
优选地，第二发光元件10为可以发出蓝光的发光二极管，第一发光元件3包括可被蓝光激发而分别发出绿光和红光的两种量子点。这样，该发光二极管发出的部分蓝光被第一发光元件3内的两种量子点所吸收，两种量子点继而发出绿色和红色的光线，红、绿、蓝三种色光在量子管内混合成的白光，再射入到导光板6内。
优选地，第一发光元件3的两端分别与隔板7的弧形条槽8的两端对齐。这样，通过弧形条槽8的光线在弧形条槽8垂直于其深度方向的截面上分布均匀，进而进入到弧形端面13的光线在导光板6内分布更均匀，液晶显示装置的显示效果更好。
优选地，第一发光元件3抵接于隔板7并覆盖隔板7的弧形条槽8。这样，通过弧形条槽8的光线在弧形条槽8垂直于其深度方向的截面上分布均匀，进而进入到弧形端面13的光线在导光板6内分布更均匀，液晶显示装置的显示效果更好。同时，可以确保从弧形条槽8射入到导光板6内的光线均是从第一发光元件3射出的，以避免第二发光元件10发出的色光直接从隔板7和第一发光元件3之间的缝隙中漏入导光板6内而导致液晶显示上的屏显示画面颜色畸变。
优选地，夹持器2还包括用于固定第一发光元件3的固定件12。固定件12设置在隔板7靠近所述第一发光元件3的一侧。固定件12连接于隔板7。优选地，在隔板7上设置多个固定件12沿隔板7的延伸方向依次间隔排列。这样相当于支撑第一发光元件3的支点增多，第一发光元件3受力更合理。更优选地，固定件12构造成垂直于隔板7的板面的、垂直于隔板7的延伸方向的且设置有通孔的平板，多个固定件12的通孔对应对齐。第一发光元件3插入到多个通孔中而被固定件12固定住。这样，第一发光元件3与弧形条槽8的位置相对固定。另外，由于固定件12垂直于隔板7，固定件12还起到加强筋板的作用，加强了夹持器2的结构强度。
更优选地，隔板7为长条形，夹持器2还包括两块的侧板11。两块侧板11均呈长条板状结构。两块侧板11相互平行。两块侧板11分别从隔板7的两侧伸出，且垂直于隔板7。两块侧板11的延伸方向与隔板7的延伸方向相同。两块侧板11和隔板7形成容纳第一发光元件3的且横截面为凹槽状的槽形件。这样，夹持器2的侧板11挡住光线从这两侧射出，以避免夹持器2从两侧漏光。同时，第一发光元件3被容纳在夹持器2内，第一发光元件3的三面均被遮挡住，这样就不容易遭受到磕碰。
更优选地，第一发光元件3为量子管，灯条4设置在夹持器2背离隔板7的一侧。灯条4的底板9从夹持器2背离底板9的一侧盖合夹持器2。底板9抵接于两个侧板11背离隔板7的侧面。底板9平行于隔板7。底板9、两块侧壁和隔板7形成容纳第一发光元件3的管状结构。灯条4上的第二发光元件10朝向第 一发光元件3。这样，夹持器2和底板9可以将第一发光元件3发出的光和第二发光元件10发出的光阻挡住，光线只能从弧形条槽8射出，从而避免背光模组1漏光。同时，第一发光元件3容纳在灯条4与夹持器2形成的管状结构中，量子管不容易被磕碰损坏。
更优选地，夹持器2朝向第一发光元件3的表面为白色。第一发光元件3发出的光线在夹持器2的白色表面上具有较高的反射率，这些从第一发光元件3射向夹持器2朝向第一发光元件3的表面的光线中的一部分会反射向弧形条槽8，进而从弧形条槽8射出。由此提高光线的利用率以及导光板6的出光面的亮度。
更优选地，在夹持器2朝向第一发光元件3的表面设置成镜面。该镜面用于将第一发光元件3发出的光线反射向弧形条槽8。进而提高光线的利用率以及导光板6的出光面的亮度。
优选地，夹持器2分成相互对接的两段。其优点在于夹持器2在与第一发光元件3装配时可以将其两段依次装配到第一发光元件3上，以便于夹持器2与第一发光元件3组装。
背板5呈大致的弧形板结构。导光板6安装在弧形背板5上，导光板6的第二板面靠近背板5。背板5用于支撑导光板6。夹持器2和灯条4均安装在背板5的底端，并与背板5相对固定。
如图4所示，本发明还提供了第二种实施方式的背光模组。第二种实施方式的背光模组与第一种实施方式的背光模组1的区别仅在于两者的隔板的结构不同，为简洁起见，下面仅描述第二种实施方式的隔板7a。
本发明的第二种实施方式的背光模组包括夹持器2a。夹持器2a包括隔板7a。隔板7a上设置有多条直条槽14。多条直条槽14沿弧线依次对接，这样多条直槽14就拟合出了弧形的条槽8a。多条直条槽14之间可以是相互平行的。这样的直条槽14容易被加工出来。
虽然已经参考优选实施例对本发明进行了描述，但在不脱离本发明的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本发明并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (20)

  1. 一种背光模组，包括：
    第一发光元件；
    设置有弧形条槽且容纳所述第一发光元件的夹持器；
    设置在所述夹持器外且设置有朝向所述第一发光元件的弧形端面的导光板；
    其中，所述弧形端面与所述弧形条槽对应对齐。
  2. 根据权利要求1所述的背光模组，其中，所述第一发光元件为直条形，所述第一发光元件的两端分别与所述弧形条槽的两端对齐。
  3. 根据权利要求2所述的背光模组，其中，所述夹持器为与所述第一发光元件的平行的管形件。
  4. 根据权利要求3所述的背光模组，其中，所述第一发光元件覆盖所述弧形条槽。
  5. 根据权利要求1所述的背光模组，其中，所述弧形条槽由沿弧线依次连接的多个直条槽拟合而成。
  6. 根据权利要求2所述的背光模组，其中，所述夹持器还包括用于固定所述第一发光元件的固定件。
  7. 根据权利要求6所述的背光模组，其中，所述固定件为多个，多个固定件沿所述第一发光元件的延伸方向依次间隔排列。
  8. 根据权利要求7所述的背光模组，其中，所述固定件构造成垂直于所述第一发光元件且被所述第一发光元件穿过的平板。
  9. 根据权利要求8所述的背光模组，其中，所述第一发光元件为量子管，所述背光模组还包括设置在所述夹持器外且用于激发第一发光元件的第二发光元件，所述夹持器还包括设置在所述第一发光元件与所述第二发光元件之间的入光口。
  10. 根据权利要求3所述的背光模组，其中，所述夹持器还包括用于固定所述第一发光元件的固定件。
  11. 根据权利要求10所述的背光模组，其中，所述固定件为多个，多个固定件沿所述第一发光元件的延伸方向依次间隔排列。
  12. 根据权利要求11所述的背光模组，其中，所述固定件构造成垂直于所 述第一发光元件且被所述第一发光元件穿过的平板。
  13. 根据权利要求12所述的背光模组，其中，所述第一发光元件为量子管，所述背光模组还包括设置在所述夹持器外且用于激发第一发光元件的第二发光元件，所述夹持器还包括设置在所述第一发光元件与所述第二发光元件之间的入光口。
  14. 根据权利要求4所述的背光模组，其中，所述夹持器还包括用于固定所述第一发光元件的固定件。
  15. 根据权利要求14所述的背光模组，其中，所述固定件为多个，多个固定件沿所述第一发光元件的延伸方向依次间隔排列。
  16. 根据权利要求15所述的背光模组，其中，所述固定件构造成垂直于所述第一发光元件且被所述第一发光元件穿过的平板。
  17. 根据权利要求16所述的背光模组，其中，所述第一发光元件为量子管，所述背光模组还包括设置在所述夹持器外且用于激发第一发光元件的第二发光元件，所述夹持器还包括设置在所述第一发光元件与所述第二发光元件之间的入光口。
  18. 根据权利要求5所述的背光模组，其中，所述夹持器还包括用于固定所述第一发光元件的固定件。
  19. 根据权利要求18所述的背光模组，其中，所述固定件为多个，多个固定件沿所述第一发光元件的延伸方向依次间隔排列。
  20. 一种液晶显示装置，其中，包括背光模组，
    所述背光模组包括：
    第一发光元件；
    设置有弧形条槽且容纳所述第一发光元件的夹持器；
    设置在所述夹持器外且设置有朝向所述第一发光元件的弧形端面的导光板；
    其中，所述弧形端面与所述弧形条槽对应对齐。
PCT/CN2015/085585 2015-07-14 2015-07-30 液晶显示装置及其背光模组 Ceased WO2017008342A1 (zh)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105158975B (zh) 2015-10-12 2018-09-25 深圳市华星光电技术有限公司 背光模组组件
CN105807487A (zh) * 2016-04-06 2016-07-27 深圳市华星光电技术有限公司 背光模组及显示装置
CN105759505B (zh) * 2016-05-13 2019-03-26 青岛海信电器股份有限公司 一种背光模组及液晶显示设备
CN109493741B (zh) * 2019-01-16 2024-05-14 重庆惠科金扬科技有限公司 一种固定装置以及显示器
CN111028701B (zh) * 2019-11-29 2022-04-01 熊周成 一种led显示屏

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009087714A (ja) * 2007-09-28 2009-04-23 Fujifilm Corp 面状照明装置
CN101493209A (zh) * 2009-02-26 2009-07-29 友达光电股份有限公司 用于薄型显示器的导光装置及其薄型显示器
CN201462582U (zh) * 2009-08-04 2010-05-12 北京京东方光电科技有限公司 Ccfl侧光式背光源模组
CN104315418A (zh) * 2014-10-30 2015-01-28 京东方科技集团股份有限公司 一种光源组件、背光模组和曲面显示装置
CN104345496A (zh) * 2013-08-06 2015-02-11 乐金显示有限公司 弯曲型显示装置
CN104914621A (zh) * 2015-06-04 2015-09-16 深圳市华星光电技术有限公司 用于曲面液晶显示器的背光模组和曲面液晶显示器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200834485A (en) * 2007-02-01 2008-08-16 Chroma Ate Inc Arc advertisement plate with thin-type backlight module
JP4872696B2 (ja) * 2007-02-13 2012-02-08 オムロン株式会社 曲面型面状光源装置と曲面型液晶表示装置の製造方法
KR101251738B1 (ko) * 2011-03-22 2013-04-05 엘지이노텍 주식회사 표시장치
JP2014165116A (ja) * 2013-02-27 2014-09-08 Sony Corp 照明装置および表示装置
CN103824518B (zh) * 2014-03-14 2016-06-01 冠捷显示科技（厦门）有限公司 一种曲面显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009087714A (ja) * 2007-09-28 2009-04-23 Fujifilm Corp 面状照明装置
CN101493209A (zh) * 2009-02-26 2009-07-29 友达光电股份有限公司 用于薄型显示器的导光装置及其薄型显示器
CN201462582U (zh) * 2009-08-04 2010-05-12 北京京东方光电科技有限公司 Ccfl侧光式背光源模组
CN104345496A (zh) * 2013-08-06 2015-02-11 乐金显示有限公司 弯曲型显示装置
CN104315418A (zh) * 2014-10-30 2015-01-28 京东方科技集团股份有限公司 一种光源组件、背光模组和曲面显示装置
CN104914621A (zh) * 2015-06-04 2015-09-16 深圳市华星光电技术有限公司 用于曲面液晶显示器的背光模组和曲面液晶显示器

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