CN103969885A - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
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- CN103969885A CN103969885A CN201310030842.7A CN201310030842A CN103969885A CN 103969885 A CN103969885 A CN 103969885A CN 201310030842 A CN201310030842 A CN 201310030842A CN 103969885 A CN103969885 A CN 103969885A
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- liquid crystal
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- brightness correction
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Abstract
The invention relates to a liquid crystal display device which comprises a backlight module, a liquid crystal layer and a liquid crystal control unit, wherein the backlight module comprises a light guide board, the light guide board comprises a light emergence surface and a bottom surface opposite to the light emergent surface, dots are formed on the bottom surface, the light guide board also comprises a light mixing area and a non-light mixing area connected with the light mixing area, and the first part of densities of the bottom surfaces of the dots in the light mixing area are larger than the second part of densities of the bottom surfaces of the dots in the non-light mixing area; the liquid crystal layer comprises a brightness correction area corresponding to the light mixing area and a non-correction area corresponding to the non-light mixing area; the liquid crystal control unit applies the brightness correction voltage to the brightness correction area, so that the emergent light brightness of the brightness correction area is consistent with that of the non-correction area.
Description
Technical field
The present invention relates to a kind of liquid crystal indicator
Background technology
The side direction light-entering type backlight module of liquid crystal indicator generally comprises a light guide plate and is distributed in multiple light emitting diodes of this light guide plate one side.Light guide plate comprises the mixed light district of a contiguous light emitting diode, and the light that multiple light emitting diodes send mixes to be incorporated in while leaving mixed light district and reaches and be uniformly distributed in mixed light district.Therefore,, outside mixed light district, that penetrates from light guide plate is only equally distributed.But in mixed light district, the light penetrating from light guide plate can not reach and be uniformly distributed, thereby causes bright dark space piece, the image taste that the liquid crystal indicator of seeing is shown is poor.
Summary of the invention
In view of this, be necessary to provide a kind of liquid crystal indicator that obtains better image taste.
A kind of liquid crystal indicator, comprises backlight module, liquid crystal layer and liquid crystal control module.This backlight module comprises light guide plate, this light guide plate comprise exiting surface and with the opposing bottom surface of this exiting surface, on this bottom surface, be formed with site, this light guide plate comprises mixed light district and the non-mixed light district being connected with this mixed light district, and this site is greater than the Part II density of this site in this bottom surface to should immiscible smooth district in the Part I density of this bottom surface to should mixed light district.This liquid crystal layer comprises should the brightness correction district in mixed light district and the non-correction district in corresponding non-mixed light district, this liquid crystal control module apply brightness correction voltage to this brightness correction district to make the emitting brightness in this brightness correction district consistent with the emitting brightness in this non-correction district.
With respect to prior art, the present invention, by applying brightness correction voltage to liquid crystal layer to make the emitting brightness of liquid crystal layer even, has improved the image taste showing.
Further, the present invention is by the design of site in light guide plate, make light guide plate be greater than non-mixed light district in the brightness in mixed light district, thereby in the time revising, need to be only consistent with the brightness in the non-correction district corresponding to non-mixed light district by the brightness correction in the brightness correction district corresponding to mixed light district, to non-correction, brightness correction is not done in district, thereby has reduced the optical energy loss that brightness correction is brought.
Brief description of the drawings
Fig. 1 is the structural representation of the liquid crystal indicator of an embodiment of the present invention.
Fig. 2 is the upward view of the backlight module of the liquid crystal indicator shown in Fig. 1.
Main element symbol description
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, the liquid crystal indicator 100 that embodiment of the present invention provides, it comprises a backlight module 10, a liquid crystal layer 20 and a liquid crystal control module 30.
This backlight module 10 comprises multiple light sources 11 and a light guide plate 12, and in the present embodiment, this light source 11 is light emitting diode (LED).
This light guide plate 12 comprises that an exiting surface 120, a bottom surface opposing with exiting surface 120 122, are connected incidence surface 124 and a side 125 relative with incidence surface 124 of exiting surface 120 and bottom surface 122.The plurality of light emitting diode 11 each intervals and all contiguous this incidence surface 124 arrange.This light guide plate 12 comprises the mixed light district 126 of a contiguous the plurality of light emitting diode 11 and a relative mixed light district 126 non-mixed light district 127 away from light emitting diode 11.The light that light emitting diode 11 sends enters light guide plate 12 and propagates towards the direction of side 125 from incidence surface 124.
Refer to Fig. 2, on the bottom surface 122 of this light guide plate 12, be formed with site 128.Thereby the effect of site 128 is the propagation angle that change light makes light penetrate light guide plate 12 from exiting surface 120.Wherein, this bottom surface 122 is divided into corresponding to the Part I 1221 in this mixed light district 126 and corresponding to the Part II 1222 in Gai Fei mixed light district 127.The density of the site 128 of this Part I 1221 is greater than the density of the site 128 of this Part II 1222, thereby make can penetrate from exiting surface 120 at the more light in mixed light district 126, make exiting surface 120 will be a bit larger tham the brightness in non-mixed light district 127 in the brightness in mixed light district 126.At light, from exiting surface 120 penetrates, in non-mixed light district 127, the brightness of light is consistent.And in mixed light district 126, cause occurring light and shade block thereby the brightness of light is inconsistent.
Except said modules, this backlight module 10 also can comprise the (not shown) such as reflector plate, diffusion sheet, prismatic lens, brightness enhancement film, wherein, reflector plate is close to the bottom surface 122 of this light guide plate 12, diffusion sheet, prismatic lens, brightness enhancement film successively superposition on the exiting surface 120 of this light guide plate 12.Because said modules is well-known to those skilled in the art, be not repeated at this.
Light passes liquid crystal layer 20 from the exiting surface 120 of light guide plate 12 penetrates, and penetrates these liquid crystal indicators 100 from liquid crystal layer 20.This liquid crystal layer 20 comprises multiple liquid crystal molecules, and in the time being applied in different voltage, liquid crystal molecule is the different angle of deflection, thereby changes the percent of pass of light through liquid crystal layer 20, and light also changes through the brightness after liquid crystal layer 20 thereupon.This liquid crystal layer 20 comprises the brightness correction district 210 in mixed light district 126 and the non-correction district 211 in a corresponding immiscible smooth district 127 of a corresponding light guide plate 12.
This liquid crystal layer 20 can be divided into the basic composition unit being distinguished from each other with coordinate position, and wherein, the basic composition unit of part forms this brightness correction district 210, and the basic composition unit of part forms this non-correction district 211.This liquid crystal control module 30 comprises a brightness correction table 301, and this brightness correction table 301 stores the coordinate position of liquid crystal layer 20 and the corresponding relation of brightness correction voltage.This liquid crystal control module 30 applies different brightness correction voltage to corresponding coordinate position according to this brightness correction table 301, thereby makes the brightness of zones of different of liquid crystal layer 20 consistent, preferably shows taste to obtain.
In the present embodiment, only need to apply brightness correction voltage to brightness correction district 210, make the brightness in brightness correction district 210 reach consistent and consistent with the brightness in the non-correction district 211 of liquid crystal layer 20.
Data in this brightness correction table 301 can obtain in the following manner: the intensity map that records the liquid crystal layer 20 of unmodified by a brightness measurement instrument 40, by this intensity map digitizing and feed back to liquid crystal control module 30, liquid crystal control module 30 using liquid crystal layer 20 in the mean flow rate in non-correction district 211 as Benchmark brightness, by the brightness of each coordinate position in brightness correction district 210 respectively with Benchmark brightness comparison, and according to the corresponding relation of the brightness of liquid crystal layer 20 and voltage, obtain the brightness correction of each coordinate position in brightness correction district 210 to the required brightness correction voltage of Benchmark brightness, and be stored in brightness correction table 301.
Compared to prior art, the present invention, by applying brightness correction voltage to liquid crystal layer to make the brightness of liquid crystal layer consistent, has improved the taste of the image showing.
Further, the present invention is by the design of site in light guide plate, make light guide plate be greater than non-mixed light district in the brightness in mixed light district, thereby in the time revising, need to be only consistent with the brightness in the non-correction district corresponding to non-mixed light district by the brightness correction in the brightness correction district corresponding to mixed light district, to non-correction, brightness correction is not done in district, thereby has reduced the optical energy loss that brightness correction is brought.
In a word; those skilled in the art will be appreciated that; above embodiment is only for the present invention is described; and be not used as limitation of the invention; as long as within connotation scope of the present invention, within the appropriate change that above embodiment is done and variation all drop on the scope of protection of present invention.
Claims (6)
1. a liquid crystal indicator, comprise backlight module, liquid crystal layer and liquid crystal control module, this backlight module comprises light guide plate, this light guide plate comprise exiting surface and with the opposing bottom surface of this exiting surface, on this bottom surface, be formed with site, this light guide plate comprises mixed light district and the non-mixed light district being connected with this mixed light district, it is characterized in that: this site is greater than the Part II density of this site in this bottom surface to should immiscible smooth district in the Part I density of this bottom surface to should mixed light district, this liquid crystal layer comprises should the brightness correction district in mixed light district and the non-correction district in corresponding non-mixed light district, this liquid crystal control module apply brightness correction voltage to this brightness correction district to make the emitting brightness in this brightness correction district consistent with the emitting brightness in this non-correction district.
2. liquid crystal indicator as claimed in claim 1, is characterized in that: this backlight module also comprises multiple light sources, and this light guide plate also comprises incidence surface, and this incidence surface connects this exiting surface and this bottom surface, and contiguous this incidence surface of the plurality of light source arranges.
3. liquid crystal indicator as claimed in claim 2, is characterized in that: the contiguous the plurality of light source in this mixed light district, relative this mixed light district of Gai Fei mixed light district is away from the plurality of light source.
4. liquid crystal indicator as claimed in claim 2, is characterized in that: the plurality of light source is light emitting diode.
5. liquid crystal indicator as claimed in claim 1, it is characterized in that: this backlight module also comprises reflector plate, diffusion sheet, prismatic lens and brightness enhancement film, this reflector plate is arranged on this bottom surface, this diffusion sheet, this prismatic lens and this brightness enhancement film successively superposition on this exiting surface.
6. liquid crystal indicator as claimed in claim 1, it is characterized in that: this liquid crystal layer comprises the basic composition unit being distinguished from each other with coordinate position, this liquid crystal control module comprises brightness correction table, this brightness correction table stores the corresponding relation of this brightness correction voltage and this coordinate position, and this liquid crystal control module adds this brightness correction voltage to corresponding basic composition unit according to this brightness correction top application.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310030842.7A CN103969885A (en) | 2013-01-28 | 2013-01-28 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310030842.7A CN103969885A (en) | 2013-01-28 | 2013-01-28 | Liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103969885A true CN103969885A (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310030842.7A Pending CN103969885A (en) | 2013-01-28 | 2013-01-28 | Liquid crystal display device |
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| CN (1) | CN103969885A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111427213A (en) * | 2020-03-17 | 2020-07-17 | 青岛海信移动通信技术股份有限公司 | Mobile terminal |
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| CN1567046A (en) * | 2003-06-13 | 2005-01-19 | 鸿富锦精密工业（深圳）有限公司 | Backlight module and LCD apparatus |
| CN101025515A (en) * | 2006-02-23 | 2007-08-29 | 中华映管股份有限公司 | Side-edge backlight module for liquid crystal display device |
| CN101268720A (en) * | 2005-08-12 | 2008-09-17 | 夏普株式会社 | Motor driving device control and regulating device and method |
| CN101943357A (en) * | 2010-07-14 | 2011-01-12 | 深圳市华星光电技术有限公司 | Backlight module capable of dynamically adjusting brightness and method thereof |
| US20120069057A1 (en) * | 2009-03-30 | 2012-03-22 | Nec Display Solutions, Ltd. | Liquid crystal display device and driving method for liquid crystal panel |
| CN102809776A (en) * | 2011-06-03 | 2012-12-05 | 昆山市诚泰电气股份有限公司 | Light guide plate and double-side luminescent plane light source with same |
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2013
- 2013-01-28 CN CN201310030842.7A patent/CN103969885A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1567046A (en) * | 2003-06-13 | 2005-01-19 | 鸿富锦精密工业（深圳）有限公司 | Backlight module and LCD apparatus |
| CN101268720A (en) * | 2005-08-12 | 2008-09-17 | 夏普株式会社 | Motor driving device control and regulating device and method |
| CN101025515A (en) * | 2006-02-23 | 2007-08-29 | 中华映管股份有限公司 | Side-edge backlight module for liquid crystal display device |
| US20120069057A1 (en) * | 2009-03-30 | 2012-03-22 | Nec Display Solutions, Ltd. | Liquid crystal display device and driving method for liquid crystal panel |
| CN101943357A (en) * | 2010-07-14 | 2011-01-12 | 深圳市华星光电技术有限公司 | Backlight module capable of dynamically adjusting brightness and method thereof |
| CN102809776A (en) * | 2011-06-03 | 2012-12-05 | 昆山市诚泰电气股份有限公司 | Light guide plate and double-side luminescent plane light source with same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111427213A (en) * | 2020-03-17 | 2020-07-17 | 青岛海信移动通信技术股份有限公司 | Mobile terminal |
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Application publication date: 20140806 |