CN106873240A - Backlight assembly and liquid crystal display module - Google Patents
Backlight assembly and liquid crystal display module Download PDFInfo
- Publication number
- CN106873240A CN106873240A CN201710067953.3A CN201710067953A CN106873240A CN 106873240 A CN106873240 A CN 106873240A CN 201710067953 A CN201710067953 A CN 201710067953A CN 106873240 A CN106873240 A CN 106873240A
- Authority
- CN
- China
- Prior art keywords
- light guide
- optical module
- guide plate
- lamp bar
- group
- 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.)
- Granted
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Classifications
-
- 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
- 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
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a kind of backlight assembly, including the optical module on backboard, the optical module includes lamp bar, light guide plate and the reflector plate located at light guide plate lower end, the optical module is provided with least two groups, every group of optical module also includes carrying the light guide plate of adjacent one group of optical module and the first base of reflector plate, in relative with the light guide plate side one side in first base of lamp bar, the rake extended obliquely out towards light guide plate direction is provided with first base, the upper surface of the rake is inclined-plane, the reflecting layer for the light line reflection for projecting the lamp bar of adjacent one group of optical module is provided with inclined-plane, optical diaphragm group is coated with optical module, the reflecting surface in reflecting layer is towards optical diaphragm group.Present invention also offers a kind of liquid crystal display panel, including display panel, also including described backlight assembly.Compared with prior art, the zonal control of backlight is realized；Thickness reduction, also solves the dark problem of stitching portion brightness.
Description
Technical field
The present invention relates to a kind of liquid crystal panel module technology, particularly a kind of backlight assembly and liquid crystal display module.
Background technology
The backlight of common liquid crystal display module is mainly divided to side incident type and the class of straight-down negative two, and side injection type backlight module exists
It is advantageous on thickness, be conducive to carrying out product slimming design, but it can be less than near light source away from the side brightness of light source
Side, cause Luminance Distribution uneven；And direct-type backlight is then more conducive to do the zonal control for showing, preferably display is obtained
Picture, but how can also realize that the thickness of traditional side entrance back component is excellent while more preferable display picture is obtained
Gesture, as a problem urgently to be resolved hurrily at present.
The content of the invention
To overcome the deficiencies in the prior art, the present invention provides a kind of backlight assembly and liquid crystal display module, so that side enters
Formula backlight realizes multi partition control, reduces thickness and the uneven problem of Luminance Distribution.
The invention provides a kind of backlight assembly, including the optical module on backboard, the optical module includes lamp
Bar, light guide plate and the reflector plate located at light guide plate lower end, the optical module are provided with least two groups, and every group of optical module is also wrapped
The light guide plate and the first base of reflector plate for carrying adjacent one group of optical module are included, lamp bar is located in first base and light guide plate side
In the relative one side in side, the rake extended obliquely out towards light guide plate direction, the upper end of the rake are provided with first base
Face is inclined-plane, the reflecting layer for the light line reflection for projecting the lamp bar of adjacent one group of optical module is provided with inclined-plane, in light
Learn and be coated with optical diaphragm group in module, the reflecting surface in reflecting layer is towards optical diaphragm group.
Further, the rake is provided with towards the horizontal-extending extension of the upper end face of light guide plate, extension shape
Into nip portion, nip portion is pressed on the light guide plate side relative with lamp bar.
Further, the rake is highly incremented by successively towards light guide plate direction from first base.
Further, the first base is L-shaped, including transverse part and with the vertically disposed vertical portion of transverse part, it is horizontal
To forming the light guide plate and reflector plate of the adjacent one group of optical module of carrying between portion and vertical portion away from the first of lamp bar side
Supporting part, the one side relative with lamp bar forms the second supporting part for fixing lamp bar on vertical portion, and rake is located at vertical
In portion.
Further, the light guide plate of the every group of optical module side lower end relative with lamp bar is provided with second base.
Further, the vertical portion is relative away from the side side of lamp bar with the light guide plate of adjacent one group of optical module
Groove is simultaneously provided with, groove is parallel with lamp bar, and filler is provided with groove.
Further, the optical diaphragm group includes the transparent board being located above optical module and is attached to light-passing board
At least one of which blooming piece on material.
Further, the transparent board is diffuser plate.
Present invention also offers a kind of liquid crystal display panel, including display panel, also including described backlight assembly.
The present invention compared with prior art, by setting at least two groups optical modules of side entering type, realizes backlight
Zonal control, can cross the more preferable display picture of acquisition；Due to using side entrance back structure, making the thickness of backlight assembly reduces,
Reflecting layer is set on every group of optical module, so as to carry out luminance compensation to two groups of stitching portions of optical module, is not only solved
The uneven problem of Luminance Distribution, also solves the dark problem of stitching portion brightness.
Brief description of the drawings
Fig. 1 is the structural representation of backlight assembly of the invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of backlight assembly of the invention including at least two groups optical modules 2 on backboard 1, often
Group optical module 2 includes lamp bar 3, light guide plate 4, the reflector plate 5 located at the lower end of light guide plate 4, the adjacent one group of optical module 2 of carrying
Light guide plate 4 and reflector plate 5 first base 6, in relative with the side of light guide plate 4 one side in the first base 6 of lamp bar 3,
The rake 61 extended obliquely out towards the direction of light guide plate 4 is provided with first base 6, the upper surface of the rake 61 is inclined-plane,
Be provided with the reflecting layer 62 for the light line reflection for projecting the lamp bar 3 of adjacent one group of optical module 2 on inclined-plane, reflecting layer 62 by
Can the material of reflection source be made, be not specifically limited herein；The present invention uses modular optical module 2, carries on the back side entering type
Optical assembly can have the zonal control function of direct type backlight assembly, make to be obtained and adopted using liquid crystal display module of the invention
With the liquid crystal display module identical display picture of direct type backlight assembly, and solve the thickness of direct type backlight assembly and ask
Topic.
Optical diaphragm group 7 is coated with optical module 2, optical diaphragm group 7 includes the printing opacity located at the top of optical module 2
Sheet material 71 and at least one of which blooming piece 72 being attached on transparent board 7, the transparent board 71 are diffuser plate, reflecting layer 62
Reflecting surface towards optical diaphragm group 7, diffuser plate 71 is provided between the lower end of optical diaphragm group 7 and optical module 2, in the present invention
All optical modules 2 share the optical diaphragm group 7 that one piece of identical is covered on optical module 2, and phase is reflected by reflecting layer 62
Light to two groups of stitching portions of optical module 2 that adjacent one group of optical module 2 is projected carry out luminance compensation, solve stitching portion brightness
Dark problem.
Specifically, in order to solve the fixation problem of the light guide plate 4 of optical module 2, it is provided with rake 61 towards light guide plate 4
The horizontal-extending extension of upper end face, extension forms nip portion 63, and it is relative with lamp bar 3 that nip portion 63 is pressed in light guide plate 4
Side on, the nip portion 63 can also be such that light guide plate 4 and lamp bar 3 is stablized and accurate position relationship, so as to obtain good
Good optocoupler relation.
In the present invention, rake 61 is highly incremented by successively towards the direction of light guide plate 4 from first base 6.
Specifically, first base of the invention 6 can be realized using following structure, and first base 6 is L-shaped, including transverse direction
Portion 64 and with the vertically disposed vertical portion 65 of transverse part 64, formed between transverse part 64 and vertical portion 65 and carry adjacent one group of optics
The light guide plate 4 and reflector plate 5 of module 2 away from the side of lamp bar 3 the first supporting part 66, it is relative with lamp bar 3 on vertical portion 65
One side form the second supporting part 67 for fixing lamp bar 3, lamp bar 3 is pasted and fixed on the second supporting part 67, rake 61
On vertical portion 65.
Second base 8 can be also provided with every group of side lower end relative with lamp bar 2 of the light guide plate of optical module 23, so as to solve
The certainly equilibrium problem of light guide plate 4, but in order to realize more preferable modularization problem, the transverse part 64 of first base 6 can be extended
To lamp bar 2, so as to remove the problem for also needing to assemble second base 8 from.
Vertical portion 65 and adjacent one group of optical module 2 light guide plate 4 away from the relative one side in the side side of lamp bar 3
Groove 68 is provided with, groove 68 is parallel with lamp bar 3, filler 69 is provided with groove 68, so as to prevent light guide plate 4 and first base
6 is the problem of hard contact.
Assembly relation of the invention is further described below, in order to make it easy to understand, assuming optical mode of the invention
Block 2 is provided with two groups, respectively the first optical module, the second optical module；During assembling, first by the first base of the first optical module
6th, the first base 6 of the optical module of second base 8 and second is placed on backboard 1, and the lamp bar 3 of the first optical module is fixed
In the reflector plate 5 and light guide plate 4 that on the second supporting part 67, are then sequentially placed into the first optical module, by light guide plate 4 near lamp
The side side of bar 3 is inserted in the nip portion 63 of the first optical module, makes light guide plate 4 near the side side of lamp bar 3 and lamp bar 3
Light pearl it is relative, be limited the reflector plate 5 of the first optical module and light guide plate 4 by the nip portion 63 of the first optical module
Fixed, now the light guide plate 4 and sheet emitting 5 of the first optical module are placed in the second optical module away from the side of lamp bar 3
On first supporting part 66 of first base 6, continue to assemble in this way, so as to complete the installation of all optical modules.
When the first optical module the output optical fiber of lamp bar 3 by reflector plate 5 and light guide plate 4 refraction and reflection, one
Some light is conducted on the reflecting layer 62 into the second optical module, and light is reflected in the reflecting layer 62, so as to illuminate phase
Adjacent two groups of stitching portions of optical module.
As shown in figure 1, the invention also discloses a kind of liquid crystal display module, including display panel 9 and above-mentioned backlight
Component.
The present invention can be according to actual conditions to thickness, the network point distribution of light guide plate 4, the stitching portion spacing distance of light guide plate 4
And optical diaphragm group is adjusted apart from the height of light guide plate 4, by optimization design, its brightness uniformity effect is up to 88%
More than, meet television set design.
Although the present invention has shown and described with reference to specific embodiment, it should be appreciated by those skilled in the art that：
In the case where the spirit and scope of the present invention limited by claim and its equivalent are not departed from, can carry out herein form and
Various change in details.
Claims (9)
1. a kind of backlight assembly, including the optical module (2) on backboard (1), the optical module (2) including lamp bar (3),
Light guide plate (4) and the reflector plate (5) located at light guide plate (4) lower end, it is characterised in that：The optical module (2) is provided with least
Two groups, every group of optical module (2) also includes carrying the first of the light guide plate (4) of adjacent one group of optical module (2) and reflector plate (5)
Base (6), in relative with light guide plate (4) side one side in first base (6) of lamp bar (3), sets in first base (6)
There is the rake (61) extended obliquely out towards light guide plate (4) direction, the upper surface of the rake (61) is inclined-plane, is set on inclined-plane
There is the reflecting layer (62) for the light line reflection for projecting the lamp bar (3) of adjacent one group of optical module (2), in optical module (2)
On be coated with optical diaphragm group (7), the reflecting surface of reflecting layer (62) is towards optical diaphragm group (7).
2. backlight assembly according to claim 1, it is characterised in that：The rake (61) is provided with towards light guide plate (4)
The horizontal-extending extension of upper end face, extension forms nip portion (63), and nip portion (63) is pressed in light guide plate (4) and lamp bar
(3) on relative side.
3. backlight assembly according to claim 1, it is characterised in that：The rake (61) is from first base (6) court
Light guide plate (4) direction is highly incremented by successively.
4. the backlight assembly according to Claims 2 or 3, it is characterised in that：The first base (6) is L-shaped, including horizontal stroke
To portion (64) and with transverse part (64) vertically disposed vertical portion (65), between transverse part (64) and vertical portion (65) formed carry
The light guide plate (4) and reflector plate (5) of adjacent one group of optical module (2) away from lamp bar (3) side the first supporting part (66),
The one side relative with lamp bar (3) forms the second supporting part (67) for fixing lamp bar (3), rake (61) on vertical portion (65)
On vertical portion (65).
5. backlight assembly according to claim 4, it is characterised in that：The light guide plate (3) and lamp bar of every group of optical module (2)
(2) relative side lower end is provided with second base (8).
6. backlight assembly according to claim 5, it is characterised in that：The vertical portion (65) and adjacent one group of optical module
(2) light guide plate (4) is provided with groove (68), groove (68) and lamp bar (3) away from the relative one side in the side side of lamp bar (3)
It is parallel, it is provided with filler (69) in groove (68).
7. backlight assembly according to claim 1, it is characterised in that：The optical diaphragm group (7) is including located at optical mode
Transparent board (71) above block (2) and at least one of which blooming piece (72) being attached on transparent board (71).
8. backlight assembly according to claim 7, it is characterised in that：The transparent board (71) is diffuser plate.
9. a kind of liquid crystal display panel, including display panel (9), it is characterised in that：Also include such as claim 1-8 any one
Described backlight assembly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710067953.3A CN106873240B (en) | 2017-02-07 | 2017-02-07 | Backlight assembly and liquid crystal display module |
| PCT/CN2017/073676 WO2018145325A1 (en) | 2017-02-07 | 2017-02-15 | Backlight assembly and liquid crystal display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710067953.3A CN106873240B (en) | 2017-02-07 | 2017-02-07 | Backlight assembly and liquid crystal display module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106873240A true CN106873240A (en) | 2017-06-20 |
| CN106873240B CN106873240B (en) | 2020-05-19 |
Family
ID=59165821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710067953.3A Active CN106873240B (en) | 2017-02-07 | 2017-02-07 | Backlight assembly and liquid crystal display module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106873240B (en) |
| WO (1) | WO2018145325A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145034A (en) * | 2017-06-23 | 2017-09-08 | 武汉华星光电技术有限公司 | A kind of intermediate tone mask plate |
| CN113990211A (en) * | 2021-11-15 | 2022-01-28 | Tcl华星光电技术有限公司 | Display screen and display device |
| TWI818696B (en) * | 2022-08-24 | 2023-10-11 | 大陸商業成科技（成都）有限公司 | Edge-type backlight module |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070091641A1 (en) * | 2005-10-20 | 2007-04-26 | Industrial Technology Research Institute | Backlight structure |
| US20110025724A1 (en) * | 2009-07-30 | 2011-02-03 | Lg Electronics Inc. | Backlight unit and display apparatus including the same |
| CN102081187A (en) * | 2010-11-30 | 2011-06-01 | 深圳市华星光电技术有限公司 | Spliced type light guide plate structure and backlight module |
| CN102132083A (en) * | 2008-09-30 | 2011-07-20 | 夏普株式会社 | Illuminating device and liquid crystal display device |
| CN102147079A (en) * | 2010-01-20 | 2011-08-10 | 三星电子株式会社 | Backlight assembly having a plurality of light guide plates |
| CN202216081U (en) * | 2011-07-29 | 2012-05-09 | 北京京东方光电科技有限公司 | Back light source capable of adjusting light locally and liquid crystal display module |
| CN104834049A (en) * | 2015-05-15 | 2015-08-12 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4262368B2 (en) * | 1999-09-22 | 2009-05-13 | 株式会社日立製作所 | LIGHTING DEVICE AND DISPLAY DEVICE USING THE SAME |
-
2017
- 2017-02-07 CN CN201710067953.3A patent/CN106873240B/en active Active
- 2017-02-15 WO PCT/CN2017/073676 patent/WO2018145325A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070091641A1 (en) * | 2005-10-20 | 2007-04-26 | Industrial Technology Research Institute | Backlight structure |
| CN102132083A (en) * | 2008-09-30 | 2011-07-20 | 夏普株式会社 | Illuminating device and liquid crystal display device |
| US20110025724A1 (en) * | 2009-07-30 | 2011-02-03 | Lg Electronics Inc. | Backlight unit and display apparatus including the same |
| CN102147079A (en) * | 2010-01-20 | 2011-08-10 | 三星电子株式会社 | Backlight assembly having a plurality of light guide plates |
| CN102081187A (en) * | 2010-11-30 | 2011-06-01 | 深圳市华星光电技术有限公司 | Spliced type light guide plate structure and backlight module |
| CN202216081U (en) * | 2011-07-29 | 2012-05-09 | 北京京东方光电科技有限公司 | Back light source capable of adjusting light locally and liquid crystal display module |
| CN104834049A (en) * | 2015-05-15 | 2015-08-12 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145034A (en) * | 2017-06-23 | 2017-09-08 | 武汉华星光电技术有限公司 | A kind of intermediate tone mask plate |
| CN107145034B (en) * | 2017-06-23 | 2020-11-27 | 武汉华星光电技术有限公司 | Half-tone mask plate |
| CN113990211A (en) * | 2021-11-15 | 2022-01-28 | Tcl华星光电技术有限公司 | Display screen and display device |
| TWI818696B (en) * | 2022-08-24 | 2023-10-11 | 大陸商業成科技（成都）有限公司 | Edge-type backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018145325A1 (en) | 2018-08-16 |
| CN106873240B (en) | 2020-05-19 |
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Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee after: TCL Huaxing Photoelectric Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
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