CN104375323A - Light guide plate, backlight module and displayer - Google Patents
Light guide plate, backlight module and displayer Download PDFInfo
- Publication number
- CN104375323A CN104375323A CN201410654551.XA CN201410654551A CN104375323A CN 104375323 A CN104375323 A CN 104375323A CN 201410654551 A CN201410654551 A CN 201410654551A CN 104375323 A CN104375323 A CN 104375323A
- Authority
- CN
- China
- Prior art keywords
- light guide
- guide plate
- backlight module
- barricade
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- G02B6/0081—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
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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
- G02B6/0081—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
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Planar Illumination Modules (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a light guide plate used for a backlight module. The light guide plate comprises a plate body and two oppositely arranged retaining walls. The plate body comprises two first sides arranged oppositely and two second sides connected between the two first sides, wherein the two first sides are non-incident-light sides of the light guide plate. The two retaining walls are arranged on the two first sides respectively in a protrusive mode and comprise supporting steps and abutting-against steps in the reverse direction of the supporting steps. The supporting steps are arranged on the sides, facing the plate body, of the retaining walls, the sides, backing to the plate body, of the retaining walls extend to form the abutting-against steps, and the supporting steps are used for supporting and positioning a liquid crystal panel installed on the backlight module. The abutting-against steps are used for positioning the light guide plate and a back plate of the backlight module, and the second sides are used for making contact with a light source as light-incidence sides of the light guide plate. The invention further discloses the backlight module and a displayer.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly a kind of light guide plate, backlight module and display.
Background technology
At present, liquid crystal indicator has been widely used in various electronic product as the display unit of electronic equipment, and along with the development that electronic product is lightening, the frame of electronic equipment is designed to be more and more narrow.Backlight module is then a vitals in liquid crystal indicator, and the frame of backlight module also certainly will be more and more narrow.
Backlight module of the prior art includes glue frame, and light guide plate is surrounded by glue frame, and lamp source flexible PCB is fixed on described light guide plate and glue frame by shading rubber belt, and blooming piece is also fixed on glue frame by shading double sticky tape.Visible glue frame, as the supporting body of carrying light guide plate, lamp source flexible PCB and blooming piece, is the important component part of backlight module.But the meat due to glue frame is thick more and more thinner, difficult forming, and easily damages in assembling process.
Therefore, how to design a kind of backlight module, there is narrow frame, and be easy to the advantage of assembling, for industry continues the problem of research.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of light guide plate, backlight module and display, makes backlight module and display have narrow frame, and has the advantage being easy to assemble.
To achieve these goals, embodiment of the present invention provides following technical scheme:
On the one hand, the invention provides a kind of light guide plate, for in backlight module, described light guide plate comprises plate body and two barricades be oppositely arranged, two Second Edges that described plate body comprises two the first limits be oppositely arranged and is connected between described two the first limits, described two the first limits are the non-incident plain edge of light guide plate; Described two barricades are convexly equipped in described two the first positions, limit respectively, described barricade comprise support level and with described support level towards the opposite support step, described support level is located at the side of barricade towards plate body, described support step by described barricade dorsad described plate body side extend, described support level is for supporting and locating the liquid crystal panel being loaded on backlight module, the described step that supports is for locating the backboard of described light guide plate and described backlight module, and described Second Edge enters plain edge for contacting light source as described light guide plate.
Wherein, each described barricade is strip block.
Wherein, the outer surface reflectance coating of described barricade.
Wherein, the surface that described plate body comprises described first limit and Second Edge is provided with equal photo structure, and the light that described light guide plate is derived is even, and another surface relative with described surface is coated with reflectance coating.
Wherein, each described barricade includes at least two in collinear spaced block, forms breach between two adjacent described blocks.
The present invention also provides a kind of backlight module, comprise backboard and blooming piece, described backlight module comprises light guide plate, described light guide plate comprises the plate body barricade relative with two, two Second Edges that described plate body comprises two the first limits be oppositely arranged and is connected between described two the first limits, described two the first limits are the non-incident plain edge of light guide plate; Described two barricades are convexly equipped in described two the first positions, limit respectively, described barricade comprise support level and with described support level towards the opposite support step, described support level is located at the surface of barricade towards light guide plate, the described step that supports is extended by described barricade face away from light guide side, described light guide plate is located on described backboard, and it is described between barricade and described blooming piece and the stacked setting of described plate body that described blooming piece is positioned described light guide plate; The described step that supports is fastened in described back plate edges to be positioned on described backboard by described light guide plate; Described support level and described blooming piece are positioned at same plane, and described support level is for locating described optical sheet and being loaded on the liquid crystal panel of backlight module, and described Second Edge enters plain edge for contacting light source as described light guide plate.
Wherein, each described barricade includes at least two in collinear spaced block, forms breach between two adjacent described blocks, and the corresponding described breach in described blooming piece edge is provided with retaining sheet, and described slide calliper rule sheet is fastened in described breach.
Wherein, described backlight module also comprises double faced adhesive tape, described sticking double faced adhesive tape in described barricade away from the surface of plate body and described slide calliper rule sheet.
Wherein, described barricade is bar shaped block, and described backboard comprises base plate and is located at the side plate of base plate, described in support step and be held in the end of described side plate away from described base plate.
The present invention also provides a kind of display, described display comprises described backlight module and liquid crystal panel, described liquid crystal panel is located on described backlight module, and by described support level supporting and location liquid crystal panel, and fixed by double faced adhesive tape between the support level of described liquid crystal panel and described barricade.
The present invention is by being designed to have the plate body of integrated formed structure and the structure of two barricades by described light guide plate, locating LCD panel and light guide plate and backboard is come by barrier wall structure integrated in light guide plate, make backlight module and display without the need to frame, can assembling flow path be simplified, reduce costs.And make to use the display of described light guide plate to have the beneficial effect of narrow frame.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained as these accompanying drawings.
Fig. 1 is the light conducting plate structure schematic diagram in better embodiment of the present invention.
Fig. 2 is the light conducting plate structure schematic diagram in another embodiment of the present invention.
Fig. 3 is the schematic cross-section of the backlight module shown in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly and completely described.
Refer to Fig. 1, preferred embodiment of the present invention provides a kind of light guide plate 100, and for the backlight module of display and the location of liquid crystal panel, described light guide plate 100 comprises plate body 20 and two barricades be oppositely arranged 40.Two Second Edges 22 that described plate body 20 comprises two the first limits 21 be oppositely arranged and is connected between described two the first limits 21.Described two the first limits 21 are the non-incident plain edge of light guide plate 100; Described two barricades 40 are convexly equipped in described two the first positions, limit 21 respectively and are positioned at same plane, described barricade 40 comprise support level 41 and with described support level 41 towards the opposite support step 43.Described support level 41 is located at the side of barricade 40 towards plate body 20, described support step 43 by described barricade 40 dorsad plate body 20 side extend, described support level 41 is for supporting and locating the liquid crystal panel being loaded on backlight module, the described step 43 that supports is for being positioned by described light guide plate 100 for the backboard of described backlight module, and described Second Edge 22 enters plain edge for contacting light source as described light guide plate 100.
In present embodiment, the plate body 20 of described light guide plate 100 is rectangle schistose texture and one-body molded, and plate body 20 and barricade 40 form receiving space, for accommodating blooming piece 70 (as shown in Figure 2).Blooming piece 70 can be polytype stacked setting, such as diffusion sheet, prismatic lens, polaroid etc.
The surface that described plate body 20 comprises described first limit 21 and Second Edge 22 is provided with equal photo structure, and the light that described light guide plate 100 is derived is even, and another surface relative with described surface is coated with reflectance coating.The outer surface reflectance coating of described barricade 40.Reflectance coating can improve the utilization factor of light.Reflectance coating also usable reflectance sheet 30 replaces.
In the present embodiment, described barricade 40 is strip block and described barricade is provided with surface 401 away from the edge of described plate body 20.Described support level 41 is located at the side of barricade 40 towards plate body 20, and the step surface of described support level 41 is cut lower than described surperficial 401 towards identical with described surperficial 401.Described support step 43 be located at the side contrary with described support level 41 and step surface towards plate body direction.
Refer to Fig. 2, in another embodiment of the present invention, all become at least two blocks 52 in collinear spaced interspersed setting and breach 54 unlike, each described barricade 50 by even partition with above-described embodiment, breach 54 is between adjacent two described blocks 52.Described breach 54 is for locating the blooming piece of described backlight module.Each block 52 is provided with support level 55 and supports step 56.
In present embodiment, the bottom surface of described breach 54 is provided with shading double faced adhesive tape (not shown), and described shading double faced adhesive tape is adhered between the support level 41 of described blooming piece and described light guide plate 100.Described double faced adhesive tape is shading double faced adhesive tape, and described double faced adhesive tape not only can reinforce the location of blooming piece, makes blooming piece not depart from light guide plate 100, and shading double faced adhesive tape also can prevent at breach 54 place light leak.
Refer to Fig. 3, the present invention also provides a kind of backlight module, comprise the light guide plate 100 of backboard 60, blooming piece 70, light source (not shown) and described first embodiment, described light guide plate 100 is located on described backboard 60, described blooming piece 70 is positioned the described between barricade 40 of described light guide plate 100, and described blooming piece 70 and the stacked setting of described plate body 20, described in support step 43 and be fastened in described backboard 60 edge described light guide plate 100 to be located with on described backboard 60; Described support level 41 and described blooming piece 70 are positioned at same plane, and described support level 41 is for locating described blooming piece 70 and being loaded on the liquid crystal panel 80 of backlight module, and described Second Edge 44 enters plain edge for contacting light source as described light guide plate 100.Described light source is located on described backboard 60, and adjacent with the described Second Edge 22 of described plate body 20.
Described backboard 60 comprises base plate 61 and side plate 62, described in support step 43 and be held in the end of described side plate 62 away from described base plate 61.Described backlight module also comprises double faced adhesive tape 80, and described double faced adhesive tape 80 is pasted on described barricade 40 away from the surface of plate body 20 and described blooming piece 70.
The present invention also provides a kind of display, comprise described backlight module and liquid crystal panel 90, described liquid crystal panel 90 is located on described backlight module, and by described support level 41 supporting and location liquid crystal panel 90, and fixed by double faced adhesive tape 80 between the support level 41 of described liquid crystal panel 90 and described barricade 40.
The present invention is by being designed to have the plate body 20 of integrated formed structure and the structure of two barricades 40 by described light guide plate 100, locating LCD panel and light guide plate 100 and backboard 60 is come by barricade 40 structure integrated in light guide plate 100, make backlight module and display without the need to frame, can assembling flow path be simplified, reduce costs.And make to use the display of described light guide plate to have the beneficial effect of narrow frame.
When using the present invention to have the light guide plate 100 of barricade 50 of the second embodiment, the corresponding described breach 54 in described blooming piece 70 edge of described backlight module is provided with retaining sheet (not shown), and described slide calliper rule sheet is fastened in described breach 54.During assembling, by the retaining sheet alignment notch 54 of blooming piece 70, then blooming piece 70 is placed directly in light guide plate 100, the retaining sheet of blooming piece 70 is fallen in breach 54, achieve the location of blooming piece 70 in the horizontal plane.By two-sided gluing note on the block 52 of described retaining sheet and described breach 54 both sides.
And then by installing liquid crystal panel above blooming piece 70, described support level 55 supporting and location liquid crystal panel 90, blooming piece 70 is folded between liquid crystal panel 90 and light guide plate 100 and is fixed by double faced adhesive tape 80, make in an assembling process, blooming piece 70, can quick position between liquid crystal panel 90 and light guide plate 100.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a light guide plate, for in backlight module, it is characterized in that, described light guide plate comprises plate body and two barricades be oppositely arranged, two Second Edges that described plate body comprises two the first limits be oppositely arranged and is connected between described two the first limits, described two the first limits are the non-incident plain edge of light guide plate; Described two barricades are convexly equipped in described two the first positions, limit respectively, described barricade comprise support level and with described support level towards the opposite support step, described support level is located at the side of barricade towards plate body, described support step by described barricade dorsad described plate body side extend, described support level is for supporting and locating the liquid crystal panel being loaded on backlight module, the described step that supports is for locating the backboard of described light guide plate and described backlight module, and described Second Edge enters plain edge for contacting light source as described light guide plate.
2. light guide plate as claimed in claim 1, it is characterized in that, described light guide plate is formed in one and each described barricade is strip block.
3. light guide plate as claimed in claim 2, is characterized in that, the outer surface reflectance coating of described barricade.
4. light guide plate as claimed in claim 1, it is characterized in that, the surface that described plate body comprises described first limit and Second Edge is provided with equal photo structure, and the light that described light guide plate is derived is even, and another surface relative with described surface is coated with reflectance coating.
5. light guide plate as claimed in claim 1, it is characterized in that, described light guide plate is formed in one, and each described barricade includes at least two in collinear spaced block, forms breach between two adjacent described blocks.
6. a backlight module, comprise backboard and blooming piece, it is characterized in that, described backlight module comprises light guide plate, described light guide plate comprises the plate body barricade relative with two, two Second Edges that described plate body comprises two the first limits be oppositely arranged and is connected between described two the first limits, described two the first limits are the non-incident plain edge of light guide plate; Described two barricades are convexly equipped in described two the first positions, limit respectively, described barricade comprise support level and with described support level towards the opposite support step, described support level is located at the surface of barricade towards light guide plate, the described step that supports is extended by described barricade face away from light guide side, described light guide plate is located on described backboard, and it is described between barricade and described blooming piece and the stacked setting of described plate body that described blooming piece is positioned described light guide plate; The described step that supports is fastened in described back plate edges to be positioned on described backboard by described light guide plate; Described support level and described blooming piece are positioned at same plane, and described support level is for locating described optical sheet and being loaded on the liquid crystal panel of backlight module, and described Second Edge enters plain edge for contacting light source as described light guide plate.
7. backlight module as claimed in claim 6, it is characterized in that, each described barricade includes at least two in collinear spaced block, breach is formed between two adjacent described blocks, the corresponding described breach in described blooming piece edge is provided with retaining sheet, and described slide calliper rule sheet is fastened in described breach.
8. backlight module as claimed in claim 6, it is characterized in that, described backlight module also comprises double faced adhesive tape, described sticking double faced adhesive tape in described barricade away from the surface of plate body and described blooming piece.
9. backlight module as claimed in claim 6, it is characterized in that, described barricade is bar shaped block, and described backboard comprises base plate and is located at the side plate of base plate, described in support step and be held in the end of described side plate away from described base plate.
10. a display, it is characterized in that, described display comprises backlight module as described in any one of claim 6-9 and liquid crystal panel, described liquid crystal panel is located on described backlight module, and by described support level supporting and location liquid crystal panel, and fixed by double faced adhesive tape between the support level of described liquid crystal panel and described barricade.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410654551.XA CN104375323B (en) | 2014-11-17 | 2014-11-17 | Light guide plate, backlight module and display |
| PCT/CN2014/092590 WO2016078118A1 (en) | 2014-11-17 | 2014-11-29 | Light guide plate, backlight module and display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410654551.XA CN104375323B (en) | 2014-11-17 | 2014-11-17 | Light guide plate, backlight module and display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104375323A true CN104375323A (en) | 2015-02-25 |
| CN104375323B CN104375323B (en) | 2017-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410654551.XA Active CN104375323B (en) | 2014-11-17 | 2014-11-17 | Light guide plate, backlight module and display |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104375323B (en) |
| WO (1) | WO2016078118A1 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819440A (en) * | 2015-05-07 | 2015-08-05 | 武汉华星光电技术有限公司 | Light guide plate, manufacturing method for light guide plate and backlight module |
| CN105090892A (en) * | 2015-07-22 | 2015-11-25 | 武汉华星光电技术有限公司 | Light guide element and backlight module |
| CN105301821A (en) * | 2015-11-11 | 2016-02-03 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| CN105719569A (en) * | 2016-04-11 | 2016-06-29 | 青岛海信电器股份有限公司 | Display device |
| WO2016127588A1 (en) * | 2015-02-15 | 2016-08-18 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN107167940A (en) * | 2017-07-14 | 2017-09-15 | 宁波维真显示科技股份有限公司 | Liquid crystal display module and its applying method |
| CN107543068A (en) * | 2016-06-28 | 2018-01-05 | 瑞仪光电(苏州)有限公司 | Backlight module |
| US10459155B2 (en) | 2016-06-28 | 2019-10-29 | Radiant Opto-Electronics (Suzhou) Co., Ltd. | Backlight module and display device having the same |
| CN110568665A (en) * | 2018-12-05 | 2019-12-13 | 友达光电股份有限公司 | Display device |
| WO2021042279A1 (en) * | 2019-09-04 | 2021-03-11 | 京东方科技集团股份有限公司 | Light guide plate, display module, and display device |
| CN115145071A (en) * | 2021-03-30 | 2022-10-04 | 京东方科技集团股份有限公司 | Display module and display device |
| WO2022247131A1 (en) * | 2021-05-24 | 2022-12-01 | 京东方科技集团股份有限公司 | Backlight module, display panel and display apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10132989B2 (en) | 2015-02-15 | 2018-11-20 | Boe Technology Group Co., Ltd. | Backlight module and display device |
| WO2016127588A1 (en) * | 2015-02-15 | 2016-08-18 | 京东方科技集团股份有限公司 | Backlight module and display device |
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| CN107167940A (en) * | 2017-07-14 | 2017-09-15 | 宁波维真显示科技股份有限公司 | Liquid crystal display module and its applying method |
| CN110568665A (en) * | 2018-12-05 | 2019-12-13 | 友达光电股份有限公司 | Display device |
| WO2021042279A1 (en) * | 2019-09-04 | 2021-03-11 | 京东方科技集团股份有限公司 | Light guide plate, display module, and display device |
| US11789301B2 (en) | 2019-09-04 | 2023-10-17 | Beijing Boe Display Technology Co., Ltd. | Light guide plate including mounting portion, display module and display device |
| CN115145071A (en) * | 2021-03-30 | 2022-10-04 | 京东方科技集团股份有限公司 | Display module and display device |
| CN115145071B (en) * | 2021-03-30 | 2023-11-07 | 京东方科技集团股份有限公司 | Display module and display device |
| WO2022247131A1 (en) * | 2021-05-24 | 2022-12-01 | 京东方科技集团股份有限公司 | Backlight module, display panel and display apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016078118A1 (en) | 2016-05-26 |
| CN104375323B (en) | 2017-09-22 |
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