CN102033339B - Direct type ultrathin liquid crystal display device - Google Patents
Direct type ultrathin liquid crystal display device Download PDFInfo
- Publication number
- CN102033339B CN102033339B CN2009102209538A CN200910220953A CN102033339B CN 102033339 B CN102033339 B CN 102033339B CN 2009102209538 A CN2009102209538 A CN 2009102209538A CN 200910220953 A CN200910220953 A CN 200910220953A CN 102033339 B CN102033339 B CN 102033339B
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- CN
- China
- Prior art keywords
- display device
- liquid crystal
- crystal display
- light source
- pcb board
- 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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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
-
- 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
- G02F1/133612—Electrical details
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention is suitable for the display field of a TV, an integrated computer, a display, and the like and provides a direct type ultrathin liquid crystal display device. The direct type ultrathin liquid crystal display device comprises a front cover and a back cover which are matched to form a cavity body; and the cavity body is internally provided with a display screen, a diffusion film, light sources, a reflective film and a PCB (Printed Circuit Board), wherein the PCB is provided with a plurality of electronic elements, and the PCB and circuit elements thereon are arranged between the light sources. Compared with the traditional direct type liquid crystal display device, the PCB and the circuit elements thereon are arranged in a space between the light sources, the concept is skillful, the thickness of the display device is remarkably reduced, and the ultra-thinness of the direct type liquid crystal display device is realized.
Description
Technical field
The present invention is applied to the demonstration such as TV, computer all-in-one machine, display field, relates in particular to a kind of direct type ultrathin liquid crystal display device.
Background technology
Existing liquid crystal indicator generally is divided into two kinds of side-light type and straight-down negatives.For small-medium size, the side-light type display device has the advantages such as light, thin, that power consumption is low; But, increasingly surging to the needs of large scale display device along with the development of scientific and technological level, and that large scale side-light type display device is held number of light sources is limited, light utilization efficiency is lower, can't reach the brightness requirement of large scale liquid crystal display device.And large-sized straight-down negative display device can be held more light source, and light utilization efficiency is high, therefore obtain people's favor, but existing large-size direct following formula display device is thicker, can't satisfy people to the requirement of display device ultrathin.
Figure 1 shows that existing directly-down liquid crystal display device, it is by display screen 91, diffusion barrier 92, light source 93, reflectance coating 94, pcb board 95 and some electronic components 951 of being located on this pcb board 95 form, described display screen 91, diffusion barrier 92, light source 93 and reflectance coating 94 are located in cavity between cover 96 and dividing plate 97, described pcb board 95 and on electronic component 951 be located on a support 99 in cavity between dividing plate 97 and bonnet 98, light source 93 is located at the surface of reflectance coating 94, form the vertical light inlet of straight-down negative, light is through becoming soft even after diffusion barrier 92, then project on display screen 91, thereby realize image display function.This directly-down liquid crystal display device, due to pcb board 95 and on electronic component 951 be located in the cavity that dividing plate 97 and bonnet 98 form, take up room large, increased the thickness of display device, be difficult to realize the ultrathin of liquid crystal indicator.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, a kind of direct type ultrathin liquid crystal display device that can significantly reduce integral thickness is provided.
The present invention realizes like this, a kind of directly-down liquid crystal display device, comprise cover and bonnet, described cover and bonnet coordinate formation one cavity, be provided with display screen, diffusion barrier, light source, reflectance coating and pcb board in described cavity, described pcb board is provided with some circuit components, described pcb board and on circuit component be located between described each light source.Described reflectance coating is planar structure, and described light source is located in the cavity that forms between described reflectance coating and diffusion barrier and is positioned on described reflectance coating, described pcb board and on circuit component disperse be located between described each light source and be positioned on described reflectance coating.
More specifically, scribble light reflecting material on the circuit component on described pcb board.
More specifically, be provided with heat conductive isolation sheet between described pcb board and described bonnet.
Particularly, described light source is CCFL light source or LED light source.
Particularly, described cover and bonnet are made respectively or are one-body molded.
Compare with existing directly-down liquid crystal display device, the present invention with pcb board and on circuit component be located in space between light source and light source, be skillfully constructed, significantly reduced the thickness of display device, realized the ultrathin of directly-down liquid crystal display device.
Description of drawings
Fig. 1 is the schematic diagram of the directly-down liquid crystal display device that provides of prior art;
Fig. 2 A is the schematic diagram of the directly-down liquid crystal display device of the employing serrate reflectance coating that provides of the embodiment of the present invention one and CCFL light source;
Fig. 2 B is the schematic diagram of the directly-down liquid crystal display device of the positive and negative trapezoidal reflectance coating that joins of employing that provides of the embodiment of the present invention one and CCFL light source;
Fig. 3 is the schematic diagram of the directly-down liquid crystal display device of the employing serrate reflectance coating that provides of the embodiment of the present invention one and LED light source;
Fig. 4 is the schematic diagram of the directly-down liquid crystal display device of the employing plane reflection film that provides of the embodiment of the present invention two and CCFL light source.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
A kind of direct type ultrathin liquid crystal display device provided by the invention, comprise cover and bonnet, described cover and bonnet coordinate formation one cavity, be provided with display screen, diffusion barrier, light source, reflectance coating and pcb board in described cavity, described pcb board is provided with some circuit components, described pcb board and on circuit component be located between described each light source.Compare with existing directly-down liquid crystal display device, the present invention with pcb board and on circuit component be located in space between light source and light source, be skillfully constructed, significantly reduced the thickness of display device, realized the ultrathin of directly-down liquid crystal display device.
Below in conjunction with specific embodiment, the present invention is elaborated.
Embodiment one:
as Fig. 2 A, Fig. 2 B and shown in Figure 3, a kind of direct type ultrathin liquid crystal display device that the embodiment of the present invention one provides, comprise cover 11 and bonnet 12, described cover 11 and bonnet 12 coordinate formation one cavity, be provided with display screen 13 in described cavity, diffusion barrier 14, light source 15, reflectance coating 16 and pcb board 17, described pcb board 17 is provided with some circuit components 171, described reflectance coating 16 is nonplanar convex-concave structure, described light source 15 is located in the cavity 18 that forms between described reflectance coating 16 and diffusion barrier 14 and is positioned at the recess of described reflectance coating 16, described pcb board 17 and on circuit component 171 be located between described reflectance coating 16 and bonnet 12 in the cavity 19 that forms and be fixedly arranged on described bonnet 12.Compare with existing directly-down liquid crystal display device, the embodiment of the present invention one is designed to nonplanar convex-concave structure with reflectance coating 16, utilize between reflectance coating 16 and bonnet 12 cavity 19 that forms place pcb board 17 and on circuit component 171, be skillfully constructed, significantly reduce the thickness of display device, realized the ultrathin of directly-down liquid crystal display device.
Particularly, reflectance coating 16 of the present invention is serrate (as shown in Fig. 2 A), can certainly be waveform, the positive and negative trapezium structure that joins (as shown in Fig. 2 B) or other nonplanar convex-concave structure each other, and the light that needs assurance light source 15 to send can cover each place of diffusion barrier 14, light is through becoming soft even after this diffusion barrier 14, and then project equably on display screen 13, make display screen 13 produce the image of high-quality.
Particularly; described pcb board 17 and on circuit component 171 disperse to be located at the cavity 19 interior (as shown in Fig. 2 A and Fig. 2 B) that forms between described reflectance coating 16 and bonnet 12; certainly; described pcb board 17 and on circuit component 171 also can whole be located in the cavity 19 of formation between described reflectance coating 16 and bonnet 12, all belong to protection scope of the present invention.
Preferably, described light source 15 can adopt CCFL light source (as shown in Fig. 2 A and Fig. 2 B), also can adopt LED light source (as shown in Figure 3), all can realize the imaging of liquid crystal indicator.
Further, be provided with a heat conductive isolation sheet 110 between described pcb board 17 and described bonnet 12, the heat that this heat conductive isolation sheet 110 can produce the circuit component 171 on pcb board 17 in time distributes; Can also make insulation between pcb board 17 and bonnet 12, produce unexpected to prevent pcb board 17 with extraneous conduction.Simultaneously, owing between light source 15 and diffusion sheet 14, very large space being arranged, heat can be delivered in the mode of natural convection the display device outside.Certainly, also can not establish heat conductive isolation sheet 110 between described pcb board 17 and described bonnet 12, all belong to protection scope of the present invention.
In addition, described cover 11 and bonnet 12 both can be made respectively, then were assembled together by screw; Perhaps, described cover 11 and bonnet 12 also can be one-body molded, form the housing of an integral body.
Embodiment two:
as shown in Figure 4, a kind of direct type ultrathin liquid crystal display device that the embodiment of the present invention two provides, comprise cover 21 and bonnet 22, described cover 21 and bonnet 22 coordinate formation one cavity, be provided with display screen 23 in described cavity, diffusion barrier 24, light source 25, reflectance coating 26 and pcb board 27, described pcb board 27 is provided with some circuit components 271, described reflectance coating 26 is planar structure, described light source 25 is located in the cavity 28 that forms between described reflectance coating 26 and diffusion barrier 24 and is positioned on described reflectance coating 26, described pcb board 27 and on circuit component 271 disperse be located between described each light source 25 and be positioned on described reflectance coating 26.Compare with existing directly-down liquid crystal display device, the embodiment of the present invention two with pcb board 27 and on circuit component 271 scattering devices on reflectance coating 26 and between each light source 25, be skillfully constructed, significantly reduce the thickness of display device, realized the ultrathin of directly-down liquid crystal display device.
Particularly, utilization factor for the light that improves light source 25, scribble light reflecting material on circuit component 271 on described pcb board 27, the light of light source 25 shines on circuit component 271, circuit component 271 can with light reflection to diffusion barrier 24, significantly improve the utilization factor of the light of light source 25.
Further, be provided with heat conductive isolation sheet 29 between described pcb board 27 and described bonnet 22, the heat that this heat conductive isolation sheet 29 can produce the circuit component 271 on pcb board 27 in time distributes; Can also make insulation between pcb board 27 and reflectance coating 26, produce unexpected to prevent pcb board 27 with extraneous conduction.Simultaneously, owing between light source 25 and diffusion sheet 24, very large space being arranged, heat can be delivered in the mode of natural convection the display device outside.Certainly, also can not establish heat conductive isolation sheet 29 between described pcb board 27 and described reflectance coating 26, all belong to protection scope of the present invention.
Equally, described light source 25 also can adopt CCFL light source (as shown in Figure 4) or LED light source (not shown), all can realize the imaging of liquid crystal indicator.
In addition, described cover 21 and bonnet 22 both can be made respectively, then were assembled together by screw; Perhaps, described cover 21 and bonnet 22 also can be one-body molded, form the housing of an integral body.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. directly-down liquid crystal display device, comprise cover and bonnet, described cover and bonnet coordinate formation one cavity, be provided with display screen in described cavity, diffusion barrier, light source, reflectance coating and pcb board, described pcb board is provided with some circuit components, described pcb board and on circuit component be located between described each light source, it is characterized in that: described reflectance coating is planar structure, described light source is located in the cavity that forms between described reflectance coating and diffusion barrier and is positioned on described reflectance coating, described pcb board and on circuit component disperse to be located between described each light source and to be positioned on described reflectance coating.
2. directly-down liquid crystal display device as claimed in claim 1, is characterized in that: scribble light reflecting material on the circuit component on described pcb board.
3. directly-down liquid crystal display device as claimed in claim 2, is characterized in that: be provided with heat conductive isolation sheet between described pcb board and described bonnet.
4. directly-down liquid crystal display device as claimed in claim 1, it is characterized in that: described light source is CCFL light source or LED light source.
5. directly-down liquid crystal display device as claimed in claim 1, it is characterized in that: described cover and bonnet are made respectively or are one-body molded.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102209538A CN102033339B (en) | 2009-09-30 | 2009-11-09 | Direct type ultrathin liquid crystal display device |
| PCT/CN2009/076162 WO2011038562A1 (en) | 2009-09-30 | 2009-12-29 | Direct-type ultra-thin liquid crystal display device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910190683.0 | 2009-09-30 | ||
| CN200910190683 | 2009-09-30 | ||
| CN2009102209538A CN102033339B (en) | 2009-09-30 | 2009-11-09 | Direct type ultrathin liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102033339A CN102033339A (en) | 2011-04-27 |
| CN102033339B true CN102033339B (en) | 2013-06-12 |
Family
ID=43825503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102209538A Expired - Fee Related CN102033339B (en) | 2009-09-30 | 2009-11-09 | Direct type ultrathin liquid crystal display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102033339B (en) |
| WO (1) | WO2011038562A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103218955B (en) * | 2012-02-28 | 2015-10-28 | 天地融科技股份有限公司 | A kind of electronic equipment |
| CN103672617B (en) * | 2013-12-12 | 2016-07-06 | 广州创维平面显示科技有限公司 | Display device and ultrathin backlight module thereof |
| CN105303969B (en) * | 2015-11-19 | 2017-11-24 | 合一智能科技（深圳）有限公司 | Display module and its manufacture method |
| CN106647021A (en) * | 2016-11-16 | 2017-05-10 | 广东长虹电子有限公司 | Direct type backlight module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316668A (en) * | 2000-03-24 | 2001-10-10 | 株式会社日立制作所 | Liquid crystal display device |
| JP2005267852A (en) * | 2004-03-16 | 2005-09-29 | Sharp Corp | Backlight reflecting plate |
| CN2809676Y (en) * | 2005-05-31 | 2006-08-23 | 优佰利股份有限公司 | Light source module and liquid crystal panel assembly |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6130736A (en) * | 1997-06-13 | 2000-10-10 | Alps Electric Co., Ltd. | Liquid crystal display with corrugated reflective surface |
| JP3803554B2 (en) * | 2001-02-16 | 2006-08-02 | 株式会社日立製作所 | Liquid crystal display |
| CN100468151C (en) * | 2004-03-11 | 2009-03-11 | 鸿富锦精密工业（深圳）有限公司 | Straight-down type back-light module group |
| CN1773346A (en) * | 2004-11-12 | 2006-05-17 | 鸿富锦精密工业（深圳）有限公司 | Straight down type back light module |
| CN100365485C (en) * | 2005-08-31 | 2008-01-30 | 友达光电股份有限公司 | Direct type backlight module |
| KR20070084737A (en) * | 2006-02-21 | 2007-08-27 | 삼성전자주식회사 | Inverter and display device having the same |
| CN101358713B (en) * | 2007-08-01 | 2014-04-02 | 群创光电股份有限公司 | Directly-down back light module unit and LCD using the directly-down back light module unit |
| CN201107517Y (en) * | 2007-11-26 | 2008-08-27 | 上海广电光电子有限公司 | Straight lower type back light module unit |
| CN101533183B (en) * | 2008-03-14 | 2011-02-02 | 北京京东方光电科技有限公司 | Backlight module and liquid crystal display device |
-
2009
- 2009-11-09 CN CN2009102209538A patent/CN102033339B/en not_active Expired - Fee Related
- 2009-12-29 WO PCT/CN2009/076162 patent/WO2011038562A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316668A (en) * | 2000-03-24 | 2001-10-10 | 株式会社日立制作所 | Liquid crystal display device |
| JP2005267852A (en) * | 2004-03-16 | 2005-09-29 | Sharp Corp | Backlight reflecting plate |
| CN2809676Y (en) * | 2005-05-31 | 2006-08-23 | 优佰利股份有限公司 | Light source module and liquid crystal panel assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011038562A1 (en) | 2011-04-07 |
| CN102033339A (en) | 2011-04-27 |
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Effective date of registration: 20160802 Address after: 523000 Changshan village, Qingxi Town, Guangdong, Dongguan Patentee after: Dongguan Diguang Electronics Co., Ltd. Address before: Futian District Shenzhen City, Guangdong Province, CaiTian road 518026 No. 3069 Galaxy A 23 storey Century Towers Patentee before: Diguang Electronic Co., Ltd., Shenzhen |
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