CN107807477A - A kind of backlight module with wedge-shaped light-strip - Google Patents
A kind of backlight module with wedge-shaped light-strip Download PDFInfo
- Publication number
- CN107807477A CN107807477A CN201711215187.7A CN201711215187A CN107807477A CN 107807477 A CN107807477 A CN 107807477A CN 201711215187 A CN201711215187 A CN 201711215187A CN 107807477 A CN107807477 A CN 107807477A
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- Prior art keywords
- wedge
- strip
- shaped light
- light
- shaped
- 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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Links
- 229910052709 silver Inorganic materials 0.000 claims abstract description 9
- 239000004332 silver Substances 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims abstract description 6
- 239000007937 lozenge Substances 0.000 claims abstract description 5
- 241000826860 Trapezium Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 4
- -1 acryl Chemical group 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000005142 aphototropism Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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
- G02F1/133615—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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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 present invention discloses a kind of backlight module with wedge-shaped light-strip, including support, light source, reflecting paper, wedge-shaped light-strip, anti-silver layer, diffuser plate；Cavity；The light source side is affixed on the inside of rack side wall；Wedge-shaped light-strip is affixed on light source opposite side, and wedge-shaped light-strip lower surface contacts with frame bottom, and the upper surface of wedge-shaped light-strip is provided with anti-silver layer；Reflecting paper is placed on the inside of frame bottom, is contacted with wedge-shaped light-strip bottom margin；The lower surface of wedge-shaped light-strip and lozenges are arranged respectively to the site of matrix arrangement；Diffuser plate is placed on wedge-shaped light-strip；Reflecting paper, wedge-shaped light-strip, diffuser plate form the cavity of wedge shape.The invention provides a kind of backlight module with wedge-shaped light-strip, the effect of lightweight light guide plate.
Description
Technical field
The present invention relates to a kind of backlight module with wedge-shaped light-strip, especially a kind of lightweight light guide plate has wedge
The backlight module of shape light-strip.
Background technology
Light guide plate (light guide plate) is acrylic/PC plate material using optical grade, then high anti-with having
Rate and the not hitech materials of extinction are penetrated, light guiding points are stamped with UV screen printing technologies in the acryl plates bottom surface of optical grade.
The stop from the light that lamp issues on optical grade acryl plates surface is drawn using optical grade acryl plates, when light is mapped to
During each light guiding points, reflected light can spread toward all angles, then destroy conditioned reflex and projected by light guide plate front.By various
Density, light guiding points not of uniform size, can make light guide plate uniformly light-emitting.
In recent years, in display industry, backlight module (BLU：Back Light Unit) it is divided into straight-down negative and side enters
Formula.Down straight aphototropism mode set makes the light source positioned at screen dead astern be projected to liquid crystal panel；Side entrance back module is located at screen
Edge, the light source of screen side is guided liquid crystal panel into, and projected to display pannel.Side entrance back module proportion
It is increasing.More ultra-thin in side entering type product appearance, accounting is also increasing.Edge-type light guide plate lower surface is usually provided with
The reflection of light is realized in the site of shaping, makes light is more uniform be irradiated on blooming piece.Edge-type light guide plate is fabricated to
This is higher, how to reduce the cost of side entrance back module, it is popularized on a large scale, is current important problem.
The content of the invention
It is an object of the invention to provide a kind of backlight module with wedge-shaped light-strip of lightweight light guide plate.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of backlight module with wedge-shaped light-strip, including support, light source, reflecting paper, wedge-shaped light-strip, anti-silver layer,
Diffuser plate；Cavity；
The light source side is affixed on the inside of rack side wall；Wedge-shaped light-strip is affixed on light source opposite side, wedge-shaped light-strip following table
Face contacts with frame bottom, and the upper surface of wedge-shaped light-strip is provided with anti-silver layer；Reflecting paper is placed on the inside of frame bottom, with wedge
Shape light-strip bottom margin contacts；The lower surface of wedge-shaped light-strip and lozenges are arranged respectively to the site of matrix arrangement；Diffusion
Plate is placed on wedge-shaped light-strip；Reflecting paper, wedge-shaped light-strip, diffuser plate form the cavity of wedge shape；
The right angle long side of the wedge-shaped light-strip is placed on support；
The wedge-shaped light-strip side can be changed to triangle sides or circular arc side, triangle light-strip or circle
Arc light-strip；Triangle sides or circular arc side edge surface are arranged to matrix lattice point structure face, triangle side optics
Face or circular arc side optical surface；
The air gap can be spaced between the right-angle surface and light source of the wedge-shaped light-strip；
The site is highly 50~200um, and neighbour node is not overlapping；
The site can be circular shaped lattice point, annular site, bar shaped salient point；
The reflecting paper upper surface is reflective surface；Reflective surface is arranged to small oblique triangle mat surface structure, oblique triangle
Shape direction is consistent and not overlapping.
The invention provides a kind of backlight module with wedge-shaped light-strip, the effect of lightweight light guide plate.The present invention adopts
Traditional light guide plate is substituted with wedge-shaped light-strip and the cavity of formation, effectively reduces the dosage of light guide plate, saves production backlight
The cost in source；When reducing backlight work, light source heating, make light guide plate thermal expansion deformation；Wedge-shaped light-strip backlight assembler
Skill is simple, and production cost is low.
Brief description of the drawings
For the ease of it will be appreciated by those skilled in the art that the present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is that a kind of backlight module cross section structure of backlight module with wedge-shaped light-strip of the present invention and light conduction show
It is intended to；
Fig. 2 is a kind of back light module unit structure schematic diagram with wedge-shaped light-strip of the present invention；
Fig. 3 is a kind of reflective sheeting structural representation of the backlight module with wedge-shaped light-strip of the present invention；
Fig. 4 is a kind of triangle light-guiding strip structure schematic diagram of the backlight module with wedge-shaped light-strip of the present invention；
Fig. 5 is a kind of circular arc light-guiding strip structure schematic diagram of the backlight module with wedge-shaped light-strip of the present invention.
Embodiment
The purpose of the present invention can be achieved through the following technical solutions：
A kind of backlight module with wedge-shaped light-strip, led referring to Fig. 1-5, including support 1, light source 2, reflecting paper 3, wedge shape
Striation 4, anti-silver layer 5, diffuser plate 6；Cavity 7；
The side of light source 2 is affixed on the inside sidewalls of support 1；Wedge-shaped light-strip 4 is affixed on the opposite side of light source 2, wedge-shaped light-strip 4
Lower surface contacts with the bottom of support 1, and the upper surface of wedge-shaped light-strip 4 is provided with anti-silver layer 5；Reflecting paper 3 is placed on the bottom of support 1
Inner side, contacted with the wedge-shaped bottom margin of light-strip 4；The lower surface of wedge-shaped light-strip 4 and lozenges are arranged respectively to matrix arrangement
Site；Diffuser plate 6 is placed on wedge-shaped light-strip 4；Reflecting paper 3, wedge-shaped light-strip 4, diffuser plate 6 form the cavity 7 of wedge shape；
The right angle long side of the wedge-shaped light-strip 4 is placed on support 1；
The side of wedge-shaped light-strip 4 can be changed to triangle sides or circular arc side, triangle light-strip 7 or
Circular arc light-strip 8；Triangle sides or circular arc side edge surface are arranged to matrix lattice point structure face, triangle side light
Face 72 or circular arc side optical surface 82；
The air gap can be spaced between the right-angle surface and light source 3 of the wedge-shaped light-strip 4；
The site is highly 50~200um, and neighbour node is not overlapping；
The site can be circular shaped lattice point, annular site, bar shaped salient point；
The upper surface of reflecting paper 3 is reflective surface 31；Reflective surface 31 is arranged to small oblique triangle mat surface structure, tiltedly
Triangle direction is consistent and not overlapping.
The operation principle of the present invention：
The bottom right angle side of wedge-shaped light-strip 4 is bottom optical surface 41, and lozenges is side optical surface 42；Bottom optical surface
41 crownings are the first lug boss 411, and horizontal plane is first level portion 412；The crowning of side optical surface 42 is the second lug boss
421, horizontal plane is the second horizontal part 422；
As shown in figure 1, the light that light source 2 is sent is refracted into wedge-shaped reflecting strips 4, it is reflected back through the anti-lower surface of silver layer 5
In wedge-shaped light-strip 4；After light is irradiated to the first lug boss 411 and the first level portion 412 of bottom optical surface 41, wedge is reflected back
In shape light-strip 4；After light is irradiated to the second lug boss 421 and the second inner fovea part 422 of side optical surface 42, cavity is refracted into
In 7；
The lower surface of diffuser plate 6 is shone directly into the light in cavity 7 or by the oblique triangle on reflective surface 31
Reflective surface makes the return trip empty in chamber 7, by secondary mixed light, then is irradiated to the lower surface of diffuser plate 6；Light passes through the following table of diffuser plate 6
Face enters inside, and after being diffused mixed light, uniform light is emitted from the upper surface of diffuser plate 6.
The invention provides a kind of backlight module with wedge-shaped light-strip, the effect of lightweight light guide plate.The present invention adopts
Traditional light guide plate is substituted with wedge-shaped light-strip and the cavity of formation, effectively reduces the dosage of light guide plate, saves production backlight
The cost in source；When reducing backlight work, light source heating, make light guide plate thermal expansion deformation；Wedge-shaped light-strip backlight assembler
Skill is simple, and production cost is low.
Above content is only to structure example of the present invention and explanation, affiliated those skilled in the art couple
Described specific embodiment is made various modifications or supplement or substituted using similar mode, without departing from invention
Structure surmounts scope defined in the claims, all should belong to protection scope of the present invention.
Claims (5)
1. a kind of backlight module with wedge-shaped light-strip, including support (1), light source (2), reflecting paper (3), wedge-shaped light-strip
(4), anti-silver layer (5), diffuser plate (6), cavity (7), it is characterised in that：
Light source (2) side is affixed on support (1) inside sidewalls；Wedge-shaped light-strip (4) is affixed on light source (2) opposite side, and wedge shape is led
Striation (4) lower surface contacts with support (1) bottom, and the upper surface of wedge-shaped light-strip (4) is provided with anti-silver layer (5)；Reflecting paper (3)
Support (1) bottom inside is placed on, is contacted with wedge-shaped light-strip (4) bottom margin；The lower surface of wedge-shaped light-strip (4) and wedge shape
Face is arranged respectively to the site of matrix arrangement；Diffuser plate (6) is placed on wedge-shaped light-strip (4)；Reflecting paper (3), wedge shape are guide-lighting
Bar (4), diffuser plate (6) form the cavity (7) of wedge shape.
2. a kind of backlight module with wedge-shaped light-strip according to claim 1, it is characterised in that the wedge shape is guide-lighting
Bar (4) section is right-angled trapezium shape, and wedge-shaped light-strip (4) lozenges can be changed to triangle sides or circular arc side, structure
Into triangle light-strip (7) or circular arc light-strip (8).
A kind of 3. backlight module with wedge-shaped light-strip according to claim 1, it is characterised in that the reflecting paper
(3) upper surface is reflective surface (31)；Reflective surface (31) is arranged to small oblique triangle mat surface structure, oblique triangle direction one
Cause and not overlapping.
4. a kind of backlight module with wedge-shaped light-strip according to claim 1, it is characterised in that the site is set
For semicircle, circular shaped lattice point, annular site or bar shaped salient point.
A kind of 5. backlight module with wedge-shaped light-strip according to claim 1, it is characterised in that the site height
For 50~200um, and neighbour node is not overlapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215187.7A CN107807477B (en) | 2017-11-28 | 2017-11-28 | Backlight module with wedge-shaped light guide strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215187.7A CN107807477B (en) | 2017-11-28 | 2017-11-28 | Backlight module with wedge-shaped light guide strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107807477A true CN107807477A (en) | 2018-03-16 |
| CN107807477B CN107807477B (en) | 2024-03-22 |
Family
ID=61590170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711215187.7A Active CN107807477B (en) | 2017-11-28 | 2017-11-28 | Backlight module with wedge-shaped light guide strip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107807477B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11125818A (en) * | 1997-10-23 | 1999-05-11 | Hitachi Ltd | Liquid crystal display |
| JP2003229010A (en) * | 1993-03-03 | 2003-08-15 | Fujitsu Display Technologies Corp | Lighting equipment |
| CN1506733A (en) * | 2002-12-06 | 2004-06-23 | ������������ʽ���� | Back lighting apparatus and liquid crystal display equipment |
| JP2007294295A (en) * | 2006-04-26 | 2007-11-08 | Nippon Zeon Co Ltd | Direct backlight unit |
| TW201341903A (en) * | 2012-04-13 | 2013-10-16 | Innocom Tech Shenzhen Co Ltd | Backlight module, and light guide, and display thereof |
| CN106019709A (en) * | 2016-07-25 | 2016-10-12 | 广州创维平面显示科技有限公司 | Liquid crystal module and liquid crystal display screen |
| CN206339809U (en) * | 2016-11-04 | 2017-07-18 | 京东方科技集团股份有限公司 | A kind of backlight module and liquid crystal display device |
| JP2017188311A (en) * | 2016-04-06 | 2017-10-12 | 日立マクセル株式会社 | Light source device and electronic apparatus using the same |
| CN207473249U (en) * | 2017-11-28 | 2018-06-08 | 合肥泰沃达智能装备有限公司 | A kind of backlight module with wedge-shaped light-strip |
-
2017
- 2017-11-28 CN CN201711215187.7A patent/CN107807477B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003229010A (en) * | 1993-03-03 | 2003-08-15 | Fujitsu Display Technologies Corp | Lighting equipment |
| JPH11125818A (en) * | 1997-10-23 | 1999-05-11 | Hitachi Ltd | Liquid crystal display |
| CN1506733A (en) * | 2002-12-06 | 2004-06-23 | ������������ʽ���� | Back lighting apparatus and liquid crystal display equipment |
| JP2007294295A (en) * | 2006-04-26 | 2007-11-08 | Nippon Zeon Co Ltd | Direct backlight unit |
| TW201341903A (en) * | 2012-04-13 | 2013-10-16 | Innocom Tech Shenzhen Co Ltd | Backlight module, and light guide, and display thereof |
| JP2017188311A (en) * | 2016-04-06 | 2017-10-12 | 日立マクセル株式会社 | Light source device and electronic apparatus using the same |
| CN106019709A (en) * | 2016-07-25 | 2016-10-12 | 广州创维平面显示科技有限公司 | Liquid crystal module and liquid crystal display screen |
| CN206339809U (en) * | 2016-11-04 | 2017-07-18 | 京东方科技集团股份有限公司 | A kind of backlight module and liquid crystal display device |
| CN207473249U (en) * | 2017-11-28 | 2018-06-08 | 合肥泰沃达智能装备有限公司 | A kind of backlight module with wedge-shaped light-strip |
Non-Patent Citations (1)
| Title |
|---|
| 张军;郭丹;陈哲;蔡昌;: "手机侧背光照明导光板设计模拟", 应用光学, no. 04, 15 July 2011 (2011-07-15) * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107807477B (en) | 2024-03-22 |
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