CN203365862U - Backlight module and liquid crystal display device - Google Patents
Backlight module and liquid crystal display device Download PDFInfo
- Publication number
- CN203365862U CN203365862U CN2013204526483U CN201320452648U CN203365862U CN 203365862 U CN203365862 U CN 203365862U CN 2013204526483 U CN2013204526483 U CN 2013204526483U CN 201320452648 U CN201320452648 U CN 201320452648U CN 203365862 U CN203365862 U CN 203365862U
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- CN
- China
- Prior art keywords
- backlight module
- liquid crystal
- diffusion sheet
- light source
- sheet
- 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.)
- Expired - Fee Related
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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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- 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)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The utility model discloses a backlight module and a liquid crystal display device. The backlight module comprises a light source, a reflective sheet and a diffusion sheet, wherein the diffusion sheet is arranged above the light emitting direction of the light source, and the reflective sheet is arranged under the light emitting direction of the light source. A base material of the diffusion sheet is non-woven fabrics, and the diffusion sheet internally comprises a fibrous diffusion organization part. The liquid crystal display device comprises the backlight module and a liquid crystal display panel, wherein the liquid crystal display panel is arranged above the diffusion sheet, and at least one brightening sheet is arranged between the liquid crystal display panel and the diffusion sheet. According to the mode, the backlight module and the liquid crystal display device have the characteristics of good light guide uniformity, simplicity in manufacturing, thin size and low price and are suitably applied to relative fields of liquid crystal display televisions, flat panels, mobile phone screens and the like.
Description
Technical field
The utility model relates to liquid crystal display systems structural design field, particularly relates to a kind of backlight module and liquid crystal indicator.
Background technology
Be accompanied by the development of liquid crystal display industry, liquid crystal display, liquid crystal display module are used widely in the products such as TV and mobile phone.But, because liquid crystal itself is not luminous, in order to allow the user see the splendid colorful picture that LCDs presents, LCDs generally all must be used in conjunction with a light source.Due to the characteristic of liquid crystal, this light source generally is placed in the back of LCDs, is referred to as backlight in industry.The Main Function of backlight of LCD is to provide uniform, stable a, planar light source that have certain brightness, the core light source of its internal light source is generally light emitting diode, and inhomogeneous pointolite LED sent through light guide plate and diffusion sheet is converted into uniform area source.
In the patent documentation disclosed at present, the diffusion sheet in backlight is by other transparent polyester film of optical grade (PET) coated glass microballon mostly, or make after other pet sheet face of optical grade carries out some specific coatings processing.But no matter be PET coated glass microballon, or the pet sheet face carries out coating, all take PET as basis, complex process, cost are higher, and the integral thickness of liquid crystal display can not get further control.
The utility model content
The technical matters that the utility model mainly solves is to provide a kind of backlight module and liquid crystal indicator, adopts the nonwoven fabrics diffusion sheet to substitute traditional PET diffusion sheet or diffuser plate, and integral thickness reduces, leaded light is even, technique is simple, cost performance is high.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of backlight module is provided, comprise: light source, reflector plate and diffusion sheet, described diffusion sheet is arranged on the light direction top of described light source, described reflector plate is arranged on the light direction below of described light source, the base material of described diffusion sheet is nonwoven fabrics, and its inside comprises fibrous diffusion tissue.
In preferred embodiment of the utility model, described backlight module also comprises the blast sheet, and described diffusion sheet is arranged between described blast sheet and described light source.
In preferred embodiment of the utility model, described light source comprises a plurality of pointolites, and the light emission direction of described a plurality of pointolites is towards described diffusion sheet.
In preferred embodiment of the utility model, described light source comprises light guide plate and light emitting source, and described light guide plate comprises the incidence surface that is positioned at its sidepiece, the adjacent described incidence surface setting of described light emitting source.
In preferred embodiment of the utility model, described light emitting source is light-emittingdiode or cold cathode fluorescent lamp.
In preferred embodiment of the utility model, described light guide plate comprises the bottom surface that is positioned at its bottom, and described reflector plate is arranged on the below of described bottom surface.
In preferred embodiment of the utility model, described base material is polypropylene fiber and polyster fibre.
For solving the problems of the technologies described above, another technical scheme that the utility model adopts is: a kind of liquid crystal indicator is provided, comprise: backlight module and display panels, described backlight module comprises light source, reflector plate and diffusion sheet, described diffusion sheet is arranged on the light direction top of described light source, described reflector plate is arranged on the light direction below of described light source, and the base material of described diffusion sheet is nonwoven fabrics, and its inside comprises fibrous diffusion tissue.
In preferred embodiment of the utility model, described display panels is arranged on the top of described diffusion sheet.
In preferred embodiment of the utility model, be provided with at least one blast sheet between described display panels and described diffusion sheet.
The beneficial effects of the utility model are: a kind of backlight module and liquid crystal indicator that the utility model is pointed out, the nonwoven fabrics of employing particular characteristic is made diffusion sheet and is replaced diffusion sheet or the diffuser plate that traditional PET is matrix, there is the leaded light good uniformity, make simple, frivolous, the low-cost characteristics of size, be applicable to the application of the association areas such as LCD TV, flat board, mobile phone screen.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation that the utility model is applied in the LCD TV display device;
Fig. 2 is the structural representation that the utility model is applied in the mobile phone screen display device;
In accompanying drawing, the mark of each parts is as follows: 1, backlight module, 2, display panels, 3, the blast sheet, 11, light source, 12, reflector plate, 13, diffusion sheet, 14, the blast sheet, 111, pointolite, 112, light guide plate, 113, light emitting source.
Embodiment
Below will the technical scheme in the utility model embodiment be clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making all other embodiment that obtain under the creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 to Fig. 2, the utility model embodiment comprises:
A kind of backlight module 1, comprise: light source 11, reflector plate 12 and diffusion sheet 13, described diffusion sheet 13 is arranged on the light direction top of described light source 11, described reflector plate 12 is arranged on the light direction below of described light source 11, the base material of described diffusion sheet 13 is nonwoven fabrics, and its inside comprises fibrous diffusion tissue.
Further, described backlight module also comprises blast sheet 14, and described diffusion sheet 13 is arranged between described blast sheet 14 and described light source 11.
In the LCD TV display device, described light source 11 comprises a plurality of pointolites 111, and the light emission direction of described a plurality of pointolites 111 is towards described diffusion sheet 13.
In the mobile phone screen display device, described light source 11 comprises light guide plate 112 and light emitting source 113, and described light guide plate 112 comprises the incidence surface that is positioned at its sidepiece, the adjacent described incidence surface setting of described light emitting source 113.
In the mobile phone screen display device, described light emitting source 113 is light-emittingdiode or cold cathode fluorescent lamp.
Further, in the mobile phone screen display device, described light guide plate 112 comprises the bottom surface that is positioned at its bottom, and described reflector plate 12 is arranged on the below of described bottom surface.
In the utility model backlight module 1, the base material of described diffusion sheet 13 is the nonwoven fabrics that polypropylene fiber and polyster fibre are made.
A kind of liquid crystal indicator comprises: backlight module 1 and display panels 2.
In LCD TV or mobile phone screen display device, described display panels 2 is arranged on the top of described diffusion sheet 13.
In order to increase the display brightness of display panels 2, be provided with at least one blast sheet 3 between display panels 2 and diffusion sheet 13.
The principle of work of nonwoven fabrics diffusion sheet is mainly to realize by the inner mutual interspersed fiber of nonwoven fabrics.When light when the nonwoven fabrics internal fiber, can different fibers show and fiber and fiber between reflect, refraction and these optical phenomenas of scattering, light and so forth circulates, and has realized the effect of the uniform light of nonwoven fabrics diffusion sheet integral body.With existing common diffusion sheet product, compare, the nonwoven fabrics diffusion sheet have structure more simple, operate advantage more convenient, that one-piece construction is more frivolous., because nonwoven fabrics is environment-friendly materials of new generation, compare with existing diffusion sheet product (being mainly raw-material comparison) simultaneously, there is the water of refusing, ventilative, pliable and tough, not combustion-supporting, nontoxic nonirritant, be easy to the characteristics such as decomposition.Nontoxic, tasteless during the nonwoven fabrics burning, thereby free from environmental pollution, the integral body that is conducive to liquid crystal display, liquid crystal display module more meets the requirement of environmental protection.
In sum, a kind of backlight module and liquid crystal indicator that the utility model is pointed out, backlight module and the liquid crystal indicator with traditional diffusion sheet, made are compared, have the advantages that light guide effect is good, cost performance is high, and be applied in LCD TV and the fields such as mobile phone, flat screens have body more frivolous, manufacture the more advantage of environmental protection of more simple, product, the promotion and application of applicable association area.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in scope of patent protection of the present utility model.
Claims (10)
1. a backlight module, it is characterized in that, comprise light source, reflector plate and diffusion sheet, described diffusion sheet is arranged on the light direction top of described light source, described reflector plate is arranged on the light direction below of described light source, the base material of described diffusion sheet is nonwoven fabrics, and its inside comprises fibrous diffusion tissue.
2. backlight module according to claim 1, is characterized in that, described backlight module also comprises the blast sheet, and described diffusion sheet is arranged between described blast sheet and described light source.
3. backlight module according to claim 1, is characterized in that, described light source comprises a plurality of pointolites, and the light emission direction of described a plurality of pointolites is towards described diffusion sheet.
4. backlight module according to claim 1, is characterized in that, described light source comprises light guide plate and light emitting source, and described light guide plate comprises the incidence surface that is positioned at its sidepiece, the adjacent described incidence surface setting of described light emitting source.
5. backlight module according to claim 4, is characterized in that, described light emitting source is light-emittingdiode or cold cathode fluorescent lamp.
6. backlight module according to claim 4, is characterized in that, described light guide plate comprises the bottom surface that is positioned at its bottom, and described reflector plate is arranged on the below of described bottom surface.
7. backlight module according to claim 1, is characterized in that, described base material is polypropylene fiber and polyster fibre.
8. a liquid crystal indicator, is characterized in that, comprises the arbitrary described backlight module of claim 1-7.
9. liquid crystal indicator according to claim 8, is characterized in that, described liquid crystal indicator comprises display panels, and described display panels is arranged on the top of described diffusion sheet.
10. liquid crystal indicator according to claim 9, is characterized in that, is provided with at least one blast sheet between described display panels and described diffusion sheet.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204526483U CN203365862U (en) | 2013-07-29 | 2013-07-29 | Backlight module and liquid crystal display device |
| TW103208428U TWM491852U (en) | 2013-07-29 | 2014-05-14 | Backlight module and liquid-crystal display device using the same |
| KR1020140059089A KR20140079344A (en) | 2013-07-29 | 2014-05-16 | Back-light module and liquid crystal display device |
| PCT/CN2014/000877 WO2015014103A2 (en) | 2013-07-29 | 2014-09-28 | Backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204526483U CN203365862U (en) | 2013-07-29 | 2013-07-29 | Backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203365862U true CN203365862U (en) | 2013-12-25 |
Family
ID=49813606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204526483U Expired - Fee Related CN203365862U (en) | 2013-07-29 | 2013-07-29 | Backlight module and liquid crystal display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203365862U (en) |
| WO (1) | WO2015014103A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015014103A3 (en) * | 2013-07-29 | 2015-04-16 | 苏州艾尔迪电子有限公司 | Backlight module and liquid crystal display device |
| CN111051050A (en) * | 2017-09-01 | 2020-04-21 | 贝内克-凯利科股份公司 | Light-permeable multilayer composite film |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60128354T2 (en) * | 2000-06-15 | 2008-01-10 | Teijin Ltd. | BIAXIALLY ORIENTED POLYESTER FILM FOR LIGHT SLIP AND LIGHT SLIP |
| CN101258428A (en) * | 2005-09-06 | 2008-09-03 | 东丽株式会社 | Light diffusion film and surface light source using the same |
| JP6207117B2 (en) * | 2011-07-19 | 2017-10-04 | スリーエム イノベイティブ プロパティズ カンパニー | Surface light source device |
| CN203365862U (en) * | 2013-07-29 | 2013-12-25 | 苏州艾尔迪电子有限公司 | Backlight module and liquid crystal display device |
-
2013
- 2013-07-29 CN CN2013204526483U patent/CN203365862U/en not_active Expired - Fee Related
-
2014
- 2014-09-28 WO PCT/CN2014/000877 patent/WO2015014103A2/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015014103A3 (en) * | 2013-07-29 | 2015-04-16 | 苏州艾尔迪电子有限公司 | Backlight module and liquid crystal display device |
| CN111051050A (en) * | 2017-09-01 | 2020-04-21 | 贝内克-凯利科股份公司 | Light-permeable multilayer composite film |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015014103A2 (en) | 2015-02-05 |
| WO2015014103A3 (en) | 2015-04-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20190729 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |