CN103712130A - Backlight source, liquid crystal display device and optical membrane - Google Patents
Backlight source, liquid crystal display device and optical membrane Download PDFInfo
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- CN103712130A CN103712130A CN201310740726.4A CN201310740726A CN103712130A CN 103712130 A CN103712130 A CN 103712130A CN 201310740726 A CN201310740726 A CN 201310740726A CN 103712130 A CN103712130 A CN 103712130A
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- liquid crystal
- backlight
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Abstract
The invention relates to the technical field of display and discloses a backlight source, a liquid crystal display device and an optical membrane. The backlight source comprises an optical module, the upper surface of the top-layer optical membrane of the optical module is provided with a plurality of supports for supporting a liquid crystal panel. The supports of the top-layer optical membrane can provide supporting force for supporting the liquid crystal panel, and therefore the distance between the liquid crystal panel and the backlight source is even, light leakage of the liquid crystal display device comprising the backlight source is effectively prevented, the display quality of the liquid crystal display device is improved, and product quality is improved.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of backlight, liquid crystal indicator and blooming piece.
Background technology
Liquid crystal indicator is a kind of flat-panel display device, thereby its operation principle is to utilize liquid crystal material, under electric field action, the modulating action of light is produced to various light and shade and color change formation image.Because liquid crystal material itself is not luminous, liquid crystal indicator all needs special backlight.
As shown in Figure 1, liquid crystal indicator comprises backlight 1, and the liquid crystal panel 2 that is arranged at backlight 1 top, wherein, backlight 1 can comprise: end reflector plate 10, and the LGP 11, the first diffusion sheet 12, the first prismatic lens 13, the second prismatic lens 14 and the second diffusion sheet 15 that are set in turn in from the bottom to top end reflector plate 10 tops, liquid crystal panel 2 comprises: relatively put and by sealed plastic box to the first substrate 20 of box and second substrate 21; Be filled in that first substrate 20 and second substrate 21 form to the liquid crystal in box chamber.
The defect that prior art exists is, during liquid crystal indicator horizontal positioned, the each several part of liquid crystal panel is at the unbalance stress of vertical direction, and the impact that is subject to self gravitation, make the second diffusion sheet of backlight and the spacing of liquid crystal panel inhomogeneous, very easily occur the demonstration unfavorable conditions such as light leak, and then affect the quality of product, especially when liquid crystal indicator is large scale (viewing area Diagonal Dimension is more than 10.4 inches) liquid crystal indicator, above-mentioned defect is particularly evident.
Summary of the invention
The invention provides a kind of backlight, liquid crystal indicator and blooming piece, in order to improve the display quality of liquid crystal indicator, improve the quality of product.
The invention provides a kind of backlight, comprise blooming group, the upper surface of the top layer blooming piece of described blooming group has a plurality of supporters that support liquid crystal panel.
When the backlight that technical solution of the present invention provides is applied to liquid crystal indicator, the support force that a plurality of supporters of the upper surface of top layer blooming piece provide effectively equilibrium liquid crystal panel at the gravity of the stressed of vertical direction and self, make the spacing of this backlight and liquid crystal panel comparatively even, thereby effectively prevent the generation of liquid crystal indicator light leak, improve the display quality of liquid crystal indicator, and then improve the quality of product.
Preferably, described a plurality of supporters have at least two kinds of height dimensions, and/or described a plurality of supporter has at least two regions that distribution density is different.
In technical solution of the present invention, the supporter that top layer blooming piece has a multiple height can improve the compressive property of backlight effectively, improves the support strength to liquid crystal panel; Having at least two different regions of distribution density can provide different support forces, further to improve the uniformity of the spacing of this backlight and liquid crystal panel, thereby further improves the display quality of liquid crystal indicator.
Preferably, described distribution density is the supporter that the upper surface of every square metre of top layer blooming piece has 0.0001 square metre～1 square metre of Area of bearing.
Preferably, that the shape of above support comprises is spherical, hexahedron or cylindricality, and the dimensional accuracy of above support is micron order or grade.
When the dimensional accuracy of supporter is micron order or grade, can makes the supporter of top layer blooming piece there is stronger compressive property, and then improve the support strength of backlight to liquid crystal panel.
Preferably, the material of described top layer blooming piece and supporter is identical.
Preferably, described top layer blooming piece and supporter are structure as a whole.
When the material of top layer blooming piece and supporter is identical, top layer blooming piece can one-shot forming, thereby effectively simplifies the technical process that forms supporter, reduces the production cost of product.
Preferably, described top layer blooming piece is diffusion sheet.
Preferably, the material of above support comprises polymethyl methacrylate or thermoplastic elastomer (TPE).
Polymethyl methacrylate (Polymethyl Methacrylate, PMMA) there is good transparency and higher coefficient of elasticity, thermoplastic elastomer (TPE) (Thermoplastic Elastomer, TPE) there is the high resiliency of rubber and higher transparency, adopt the supporter of PMMA or TPE material when liquid crystal panel support force is provided, effectively ensure the transmitance of light, therefore can effectively improve display quality, improve the quality of product.
A liquid crystal indicator, comprises the backlight described in aforementioned techniques scheme, and the liquid crystal panel that is arranged at described backlight top layer blooming piece one side.Because above-mentioned backlight has above-mentioned technique effect, the liquid crystal indicator with this backlight also has corresponding technique effect.
A blooming piece, the upper surface of described blooming piece has a plurality of supporters that support liquid crystal panel.This blooming piece is applied to, in backlight that aforementioned techniques scheme provides, also to have aforementioned corresponding technique effect.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of available liquid crystal display unit;
Fig. 2 is the cross-sectional view of backlight one embodiment of the present invention;
Fig. 3 is the cross-sectional view of liquid crystal indicator one embodiment of the present invention;
Fig. 4 is blooming piece one embodiment cross-sectional view of the present invention;
Fig. 5 is the cross-sectional view of blooming piece the second embodiment of the present invention;
Fig. 6 is the cross-sectional view of blooming piece of the present invention the 3rd embodiment;
Fig. 7 is the cross-sectional view of blooming piece of the present invention the 4th embodiment.
Reference numeral:
Reflector plate at the bottom of 1-backlight 2-liquid crystal panel 10-
11-LGP 12-first diffusion sheet 13-the first prismatic lens
14-second prismatic lens 15-the second diffusion sheet 20-first substrate
21-second substrate 3-top layer blooming piece 32-supporter
The specific embodiment
In order to improve the display quality of liquid crystal indicator, the embodiment of the present invention provides a kind of backlight, liquid crystal indicator and blooming piece.Compared with prior art, the upper surface of the top layer blooming piece of this backlight has a plurality of supporters that support liquid crystal panel, when this backlight is applied to liquid crystal indicator, the support force that a plurality of supporters provide makes the spacing of this backlight and liquid crystal panel comparatively even, thereby can effectively prevent the generation of liquid crystal indicator light leak, improve the display quality of liquid crystal indicator, and then improve the quality of product.
Below with specific embodiment and be described with reference to the accompanying drawings the present invention.
As shown in Figure 2 to 4, the backlight that the embodiment of the present invention provides, comprises blooming group, and the upper surface of the top layer blooming piece 3 of blooming group has a plurality of supporters 32 that support liquid crystal panel.
The height dimension of a plurality of supporters 32 is not limit, and can have at least two kinds of height dimensions, and for example a plurality of supporters 32 can have two kinds of height, or three kinds of height, specifically according to the size dimension of liquid crystal indicator, determines.The supporter that multiple height dimension is set can improve the compressive property of top layer blooming piece effectively, and then the compressive property of raising backlight, further improve the display quality of liquid crystal indicator, example as shown in Figure 5, when a plurality of supporters 32 have two kinds of height dimensions, the supporter that height dimension is higher is equivalent to main supporter, and the supporter that height dimension is lower is equivalent to secondary supporter, the setting alternate with secondary supporter of main supporter.
The support force of 32 pairs of liquid crystal panels of a plurality of supporters is relevant with the distribution density of a plurality of supporters 32, and when distribution density is larger, support force is larger; When distribution density hour, support force is less.In order effectively to improve the display quality of liquid crystal indicator, as a preferred embodiment of backlight provided by the invention, a plurality of supporters have at least two regions that distribution density is different.
In various embodiments of the present invention, the distribution density of supporter is the Area of bearing of the supporter that has of the upper surface of every square metre of top layer blooming piece.The distribution density of supporter is preferably 0.0001 square metre～1 square metre, and the concrete distribution density of a plurality of supporters 32 determines according to the size of liquid crystal indicator, thereby further improves the display quality of liquid crystal indicator, improves the quality of product.
Example as shown in Figure 7, when liquid crystal indicator is large-sized liquid crystal indicator, in order to make the spacing of liquid crystal panel and backlight even, a plurality of supporters have two regions that distribution density is different, the distribution density of supporter of fringe region of top layer blooming piece that is positioned at backlight is less, the distribution density of supporter of zone line that is positioned at top layer blooming piece is larger, thereby effectively improves the display quality of liquid crystal indicator, improves the quality of product; When liquid crystal indicator is that while showing the liquid crystal indicator of a plurality of display frames, the distribution density of the supporter relative with the cut-off rule region of a plurality of display frames is less simultaneously.And a plurality of supporters can further improve the uniformity consistency of backlight bright dipping by the region that distribution density is different is set, thereby further improve the display quality of liquid crystal indicator.
The shape of supporter 32 is not limit, and can provide support the support force of liquid crystal panel, and for example concrete shape can comprise spherical (as shown in Figure 6), hexahedron or cylindricality.In order to make the supporter of top layer blooming piece have stronger compressive property, backlight has stronger compressive property, and the dimensional accuracy of supporter 32 is micron order or grade.
Shown in Fig. 3, the backlight that the embodiment of the present invention provides, the upper surface of the top layer blooming piece 3 of this backlight 1 has a plurality of supporters 32 that support liquid crystal panel, this backlight 1 is applied to liquid crystal indicator, when liquid crystal indicator horizontal positioned, the support force that a plurality of supporters 32 of the top layer blooming piece 3 of backlight provide, equilibrium liquid crystal panel 2 is at the stressed of vertical direction and the gravity of self effectively, make the spacing of this backlight and liquid crystal panel comparatively even, effectively prevent the generation of liquid crystal indicator light leak; And, in the assembling and transportation of liquid crystal indicator, a plurality of supporters 32 of top layer blooming piece 3 can also prevent the friction between the first substrate 20 of top layer blooming piece 3 and liquid crystal panel and the damage that produces blooming piece effectively, to sum up, the backlight that the embodiment of the present invention provides can improve the display quality of liquid crystal indicator effectively, and then improves the quality of product.
Top layer blooming piece and supporter in various embodiments of the present invention can adopt identical material, also can adopt different materials.In order to simplify the technical process that forms supporter, in an embodiment provided by the invention, preferred top layer blooming piece and supporter adopt identical material, and now, top layer blooming piece and supporter can one-shot formings; When top layer blooming piece and supporter adopt different materials, can adopt the technique of spray gun the material that forms supporter to be sprayed and is formed at the upper surface of top layer blooming piece.
The material of supporter is not limit, in order further to improve the display quality of liquid crystal indicator, in the embodiment of the present invention, preferably adopt polymetylmethacrylate (PolymethylMethacrylate, be called for short PMMA) or thermoplastic elastomer (TPE) TPE(Thermoplastic Elastomer, be called for short TPE).PMMA has good transparency and higher coefficient of elasticity, TPE has the high resiliency of rubber and higher transparency, adopt the supporter of PMMA or TPE material when liquid crystal panel support force is provided, effectively ensure the transmitance of light, especially the penetrability of the white light of PMMA reaches 92%, therefore can effectively improve display quality, improve the quality of product.
As shown in Figure 2, when backlight comprises end reflector plate 10, and while being set in turn in from the bottom to top the LGP 11, the first diffusion sheet 12, the first prismatic lens 13, the second prismatic lens 14 of end reflector plate 10 tops and the second diffusion sheet 15, the top layer blooming piece 3 that various embodiments of the present invention provide is the second diffusion sheet.When liquid crystal indicator horizontal positioned, a plurality of supporters can provide support the support force of liquid crystal panel each several part, thereby make the spacing of backlight and liquid crystal panel comparatively even, have effectively improved the display quality of liquid crystal indicator.
Backlight based on providing in above-described embodiment, as shown in Figure 3, the present invention also provides a kind of liquid crystal indicator, this liquid crystal indicator comprises the backlight that above-described embodiment provides, and the liquid crystal panel that is arranged at top layer blooming piece one side (being described backlight top) of described backlight.Because this liquid crystal indicator has adopted the backlight in above-described embodiment, so the beneficial effect of this liquid crystal indicator please refer to above-described embodiment.
Backlight based on providing in above-described embodiment, the present invention also provides a kind of blooming piece, and the upper surface of blooming piece has a plurality of supporters that support liquid crystal panel.This blooming piece is applied to, in backlight that previous embodiment provides, also to have aforementioned corresponding technique effect.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a backlight, comprises blooming group, it is characterized in that, the upper surface of the top layer blooming piece of described blooming group has a plurality of supporters that support liquid crystal panel.
2. backlight as claimed in claim 1, is characterized in that, described a plurality of supporters have at least two kinds of height dimensions, and/or described a plurality of supporters have at least two regions that distribution density is different.
3. backlight as claimed in claim 1, is characterized in that, described distribution density is the supporter that the upper surface of every square metre of top layer blooming piece has 0.0001 square metre～1 square metre of Area of bearing.
4. backlight as claimed in claim 1, is characterized in that, that the shape of above support comprises is spherical, hexahedron or cylindricality, and the dimensional accuracy of above support is micron order or grade.
5. backlight as claimed in claim 1, is characterized in that, the material of described top layer blooming piece and supporter is identical.
6. backlight as claimed in claim 5, is characterized in that, described top layer blooming piece and supporter are structure as a whole.
7. backlight as claimed in claim 1, is characterized in that, described top layer blooming piece is diffusion sheet.
8. the backlight as described in as arbitrary in claim 1～7, is characterized in that, the material of above support comprises polymethyl methacrylate or thermoplastic elastomer (TPE).
9. a liquid crystal indicator, is characterized in that, comprising: the backlight as described in as arbitrary in claim 1～8, and the liquid crystal panel that is arranged at described backlight top layer blooming piece one side.
10. a blooming piece, is characterized in that, the upper surface of described blooming piece has a plurality of supporters that support liquid crystal panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310740726.4A CN103712130A (en) | 2013-12-26 | 2013-12-26 | Backlight source, liquid crystal display device and optical membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310740726.4A CN103712130A (en) | 2013-12-26 | 2013-12-26 | Backlight source, liquid crystal display device and optical membrane |
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| CN103712130A true CN103712130A (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310740726.4A Pending CN103712130A (en) | 2013-12-26 | 2013-12-26 | Backlight source, liquid crystal display device and optical membrane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589265A (en) * | 2016-03-17 | 2016-05-18 | 深圳市华星光电技术有限公司 | Liquid crystal displayer |
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| CN201174014Y (en) * | 2008-04-10 | 2008-12-31 | 北京京东方光电科技有限公司 | Back light module unit |
| KR20110042478A (en) * | 2009-10-19 | 2011-04-27 | 엘지전자 주식회사 | Backlight module and liquid crystal display with the same |
| CN102902089A (en) * | 2012-10-30 | 2013-01-30 | 京东方科技集团股份有限公司 | Display device |
| CN203084385U (en) * | 2013-02-21 | 2013-07-24 | 合肥京东方光电科技有限公司 | Liquid crystal panel and display device |
| TW201348815A (en) * | 2012-05-23 | 2013-12-01 | Top Victory Invest Ltd | Backlight module |
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2013
- 2013-12-26 CN CN201310740726.4A patent/CN103712130A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201174014Y (en) * | 2008-04-10 | 2008-12-31 | 北京京东方光电科技有限公司 | Back light module unit |
| KR20110042478A (en) * | 2009-10-19 | 2011-04-27 | 엘지전자 주식회사 | Backlight module and liquid crystal display with the same |
| TW201348815A (en) * | 2012-05-23 | 2013-12-01 | Top Victory Invest Ltd | Backlight module |
| CN102902089A (en) * | 2012-10-30 | 2013-01-30 | 京东方科技集团股份有限公司 | Display device |
| CN203084385U (en) * | 2013-02-21 | 2013-07-24 | 合肥京东方光电科技有限公司 | Liquid crystal panel and display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589265A (en) * | 2016-03-17 | 2016-05-18 | 深圳市华星光电技术有限公司 | Liquid crystal displayer |
| WO2017156809A1 (en) * | 2016-03-17 | 2017-09-21 | 深圳市华星光电技术有限公司 | Liquid crystal display |
| US10191332B2 (en) | 2016-03-17 | 2019-01-29 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display |
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Application publication date: 20140409 |