CN201917745U - Light control diaphragm, liquid crystal panel and wide-angle liquid crystal display device comprising same - Google Patents
Light control diaphragm, liquid crystal panel and wide-angle liquid crystal display device comprising same Download PDFInfo
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- CN201917745U CN201917745U CN 201120001064 CN201120001064U CN201917745U CN 201917745 U CN201917745 U CN 201917745U CN 201120001064 CN201120001064 CN 201120001064 CN 201120001064 U CN201120001064 U CN 201120001064U CN 201917745 U CN201917745 U CN 201917745U
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- light
- liquid crystal
- light control
- projection
- diaphragm
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Abstract
The embodiment of the utility model discloses a light control diaphragm, a liquid crystal panel and a wide-angle liquid crystal display device comprising the same, which relate to the field of a liquid crystal display. The light control diaphragm which can realize the wide angle and also can guarantee high contrast characteristics comprises a substrate and a plurality of projections which are arranged on the substrate, and the light control diaphragm comprises a converging light control diaphragm and a diffused light control diaphragm. The liquid crystal panel comprises a colorful diaphragm base plate and an array base plate as well as liquid crystals which are filled between the colorful diaphragm base plate and the array base plate, and the liquid crystal panel also comprises the light control diaphragm, wherein the converging light control diaphragm is arranged at the outer side of the array base plate and is used for converging the light of a backlight which radiates towards the array base plate; and the diffused light control diaphragm is arranged at the outer side of the colorful diaphragm base plate and is used for diffusing the light which comes out of the colorful diaphragm base plate. The light control diaphragm and the liquid crystal panel are applied to the wide-angle liquid crystal display device.
Description
Technical field
The utility model relates to field of liquid crystal, relates in particular to a kind of light controlling film, liquid crystal panel and liquid crystal display panel with wide visual angle thereof.
Background technology
At present, since half luminous visual angle (HalfLuminance ViewingAngle) characteristic on the liquid crystal optics characteristic be about/about below 70/70, problem on the low side is arranged, therefore, existing wide viewing angle technology generally adopts twisted-nematic (Twisted Nematic, be called for short TN) pattern applying visual angle expanded film, or by adopting plane conversion (In-Plane Switching, be called for short IPS) or fringe field switching technology (Fringe Field Switching, be called for short FFS) etc. liquid crystal mode, can guarantee about the contrast visual angle/about 160/160 level.
As shown in Figure 1, prior art provides a kind of wide viewing angle liquid crystal display device, this wide viewing angle liquid crystal display device comprises: liquid crystal panel 1 and backlight 2, liquid crystal panel 1 comprises: color membrane substrates 11 and array base palte 12, and be filled in liquid crystal 13 between color membrane substrates 11 and the array base palte 12, in order to realize that wide viewing angle shows that this device is provided with one deck visual angle expanded film 16 between color membrane substrates 11 and upper polarizer 14.
But, several wide viewing angle technology that prior art provides, it all is the improvement of on the structure of specific pattern (as TN or IPS or FFS), making, there is not a kind of wide viewing angle technology that can be common to these patterns, and these wide viewing angle technology also ubiquity the problem that half luminous viewing angle characteristic and contrast (Contrast Ratio, abbreviation CR) characteristic can't be taken into account simultaneously.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of light controlling film, liquid crystal panel and wide viewing angle liquid crystal display device thereof, guarantees high contrast features when realizing wide viewing angle.
For solving the problems of the technologies described above, the utility model light controlling film, liquid crystal panel and wide viewing angle liquid crystal display device thereof adopt following technical scheme:
A kind of light controlling film comprises: substrate and be positioned at suprabasil several projectioies, and described light controlling film comprises: converge light control film and diffusion light controlling diaphragm, the described base side that converges light control film is the plane of incidence of light, and its convex side is the exit facet of light; The convex side of described diffusion light controlling diaphragm is the plane of incidence of light, and its base side is the exit facet of light.
Described projection is equal-sized spherical surface hill, and described projection is evenly distributed.
Have between described projection and the projection at interval.
Described projection and described substrate are one-body molded.
Described substrate of converging light control film is provided with the reflection horizon, and described reflection horizon comprises the reflection bar corresponding to position between described projection and the projection.
The substrate of described diffusion light controlling diaphragm is provided with black matrix layer, and described black matrix layer comprises the black matrix bar corresponding to position between described projection and the projection.
A kind of liquid crystal panel, comprise: color membrane substrates and array base palte, and be filled in liquid crystal between described color membrane substrates and the array base palte, also comprise aforesaid light controlling film, the described light control film that converges is arranged on the described array base palte outside, is used to converge the light of the described array base palte of backlight directive; Described diffusion light controlling diaphragm is arranged on the described color membrane substrates outside, is used to spread the light that penetrates described color membrane substrates.
Also comprise: be arranged on the last polaroid and the following polaroid that is arranged on the described array base palte outside in the described color membrane substrates outside, the described light control film that converges is arranged on the described polaroid down outside; Described diffusion light controlling diaphragm is arranged on the described polaroid outside of going up.
A kind of wide viewing angle liquid crystal display device comprises: aforesaid liquid crystal panel and backlight, described backlight comprises: light source, light guide plate, be positioned at the diffusion sheet on the described light guide plate and be positioned at prismatic lens on the described diffusion sheet.
In the utility model, by at color membrane substrates arranged outside diffusion light controlling diaphragm, and converge light control film in the array base palte arranged outside, form the structure of wide viewing angle according to geometric optical theory, converge light control film the light that backlight penetrates is carried out optically focused, and the diffusion light controlling diaphragm will be assembled light good and that pass liquid crystal and spread, thereby realization wide viewing angle, guaranteed the CR characteristic, guaranteed good open-air visual field characteristic, further, owing to converge the effect that light control film can play diffusion sheet, therefore, can be so that backlight reduces a slice diffusion sheet.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is 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.
Fig. 1 is the structural representation of prior art wide viewing angle liquid crystal display device;
Fig. 2 is the structural representation of the utility model embodiment wide viewing angle liquid crystal display device;
Fig. 3 converges the structural representation of light control film for the utility model embodiment;
Fig. 4 is the structural representation of the utility model embodiment diffusion light controlling diaphragm.
Description of reference numerals:
The 1-liquid crystal panel; The 2-backlight; The 11-color membrane substrates;
The 12-array base palte; The 13-liquid crystal; The 14-upper polarizer;
Polaroid under the 15-; 16-visual angle expanded film; 17-diffusion light controlling diaphragm;
18-converges light control film; The 21-light guide plate; The 22-diffusion sheet;
The 23-prismatic lens; 171-deceives the matrix bar; The 181-reflection bar.
Embodiment
The utility model provides a kind of light controlling film, liquid crystal panel and wide viewing angle liquid crystal display device thereof, guarantees high contrast features when realizing wide viewing angle.
Below in conjunction with accompanying drawing the utility model embodiment light controlling film, liquid crystal panel and wide viewing angle liquid crystal display device thereof are described in detail.
As shown in Figure 2, the utility model embodiment provides a kind of wide viewing angle liquid crystal display device, comprise liquid crystal panel 1 and backlight 2, wherein, backlight 2 comprises: light source (not shown), light guide plate 21, be positioned at the diffusion sheet 22 on the described light guide plate 21 and be positioned at prismatic lens 23 on the described diffusion sheet 22.Liquid crystal panel 1 comprises: color membrane substrates 11 and array base palte 12, and be filled in liquid crystal 13 between color membrane substrates 11 and the array base palte 12, also comprise: light controlling film.
Light controlling film comprises: substrate and be positioned at suprabasil several projectioies, according to the difference of its function, light controlling film can comprise two kinds: converge light control film 18 and diffusion light controlling diaphragm 17.
Particularly, the base side that converges light control film 18 is the plane of incidence of light, and its convex side is the exit facet of light, in an embodiment of the present utility model, this converges light control film 18 and is arranged on described array base palte 12 outsides, is used to converge the light of the described array base palte 12 of backlight 2 directives; As can be seen from Figure 2, from the light of backlight 2 directive array base paltes 12, through after converging light control film 18, owing to converge the effect of the projection of light control film 18, after light was converged, the directive array base palte 12 equably.Wide viewing angle liquid crystal display device more shown in Figure 1, the light that backlight penetrates can be mapped to array base palte 12 places equably owing to converge light control film 18, and the effect of diffusion sheet also is that the light that backlight penetrates is mapped to array base palte 12 places equably, therefore, as shown in Figure 2, this converges the function that light control film 18 can be realized a slice diffusion sheet, be that 2 needs of backlight are provided with a slice diffusion sheet 22, promptly only keep the diffusion sheet 22 between light guide plate 21 and the prismatic lens 23, therefore, increased and converged after the light control film 18, not only the light that backlight 2 penetrates can have been converged equably to array base palte 12, also further reduced the diffusion sheet 22 of backlight 2.
The convex side of diffusion light controlling diaphragm 17 is the plane of incidence of light, and its base side is the exit facet of light, and in an embodiment of the present utility model, diffusion light controlling diaphragm 17 is arranged on color membrane substrates 11 outsides, is used to spread the light that penetrates described color membrane substrates 11.As can be seen from Figure 2, behind the light process diffusion light controlling diaphragm 17 of color membrane substrates 11 outgoing, light is penetrated from all angles, thereby realized wide viewing angle.
Further, because color membrane substrates 11 arranged outside have last polaroid 14, and array base palte 12 arranged outside have following polaroid 15, and therefore, this converges light control film 18 and is arranged on down polaroid 15 outsides; And diffusion light controlling diaphragm 17 is arranged on polaroid 14 outsides.
In the present embodiment, by at color membrane substrates arranged outside diffusion light controlling diaphragm, and converge light control film in the array base palte arranged outside, form the structure of wide viewing angle according to geometric optical theory, converge light control film the light that backlight penetrates is carried out optically focused, and the diffusion light controlling diaphragm will be assembled light good and that pass liquid crystal and spread, thereby realization wide viewing angle, guaranteed the CR characteristic, guaranteed good open-air visual field characteristic, further, owing to converge the effect that light control film can play diffusion sheet, therefore, can be so that backlight reduces a slice diffusion sheet.
Further, as shown in Figure 3 and Figure 4, the projection on the light controlling film can be different shape, in the present embodiment, be preferably equal-sized spherical surface hill, described projection is evenly distributed, spherical surface hill is with the angular range maximum of light diffusion, and effect of wide angle is remarkable.Need to prove that the height of spherical surface hill and centre distance can make it to reach optimization according to concrete needs setting, this enforcement is not limited.
Further, the interference for fear of intersection protruding and projection causes light path can have between described projection and the projection at interval.
Further, in preparation process, projection can be one-body molded with substrate.
Further, as shown in Figure 3, in order to improve the optically focused degree, described substrate of converging light control film 18 is provided with the reflection horizon, and described reflection horizon comprises the reflection bar 181 corresponding to position between described projection and the projection.Reflection bar 181 is with the light reflected back backlight of position between directive projection and the projection.The material of this reflection bar 181 can be metal.
Further, as shown in Figure 4, in order to improve the CR characteristic, the substrate of described diffusion light controlling diaphragm 17 is provided with black matrix layer, and described black matrix layer comprises the black matrix bar 171 corresponding to position between described projection and the projection.Black matrix bar 171 absorbs the light of position between directive projection and the projection, has avoided the interference of this part light, thereby can improve contrast.
In the present embodiment, by at color membrane substrates arranged outside diffusion light controlling diaphragm, and converge light control film in the array base palte arranged outside, form the structure of wide viewing angle according to geometric optical theory, converge light control film the light that backlight penetrates is carried out optically focused, and the diffusion light controlling diaphragm will be assembled light good and that pass liquid crystal and spread, thereby realization wide viewing angle, guaranteed the CR characteristic, guaranteed good open-air visual field characteristic, further, owing to converge the effect that light control film can play diffusion sheet, therefore, can be so that backlight reduces a slice diffusion sheet.And further, in the substrate of converging light control film, be provided with the reflection horizon, further improved and converged light control film optically focused degree; In the substrate of described diffusion light controlling diaphragm, be provided with black matrix layer, from the further contrast that improved.
The above; it only is embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (9)
1. light controlling film, it is characterized in that, comprising: substrate and be positioned at suprabasil several projectioies, described light controlling film comprises: converge light control film and diffusion light controlling diaphragm, the described base side that converges light control film is the plane of incidence of light, and its convex side is the exit facet of light; The convex side of described diffusion light controlling diaphragm is the plane of incidence of light, and its base side is the exit facet of light.
2. light controlling film according to claim 1 is characterized in that, described projection is equal-sized spherical surface hill, and described projection is evenly distributed.
3. light controlling film according to claim 2 is characterized in that, has between described projection and the projection at interval.
4. according to the described light controlling film of the arbitrary claim of claim 1-3, it is characterized in that described projection and described substrate are one-body molded.
5. light controlling film according to claim 4 is characterized in that, described substrate of converging light control film is provided with the reflection horizon, and described reflection horizon comprises the reflection bar corresponding to position between described projection and the projection.
6. light controlling film according to claim 4 is characterized in that the substrate of described diffusion light controlling diaphragm is provided with black matrix layer, and described black matrix layer comprises the black matrix bar corresponding to position between described projection and the projection.
7. liquid crystal panel, comprise: color membrane substrates and array base palte, and be filled in liquid crystal between described color membrane substrates and the array base palte, it is characterized in that, also comprise as the described light controlling film of the arbitrary claim of claim 1-6, the described light control film that converges is arranged on the described array base palte outside, is used to converge the light of the described array base palte of backlight directive; Described diffusion light controlling diaphragm is arranged on the described color membrane substrates outside, is used to spread the light that penetrates described color membrane substrates.
8. liquid crystal panel according to claim 7 is characterized in that, also comprises: be arranged on the last polaroid and the following polaroid that is arranged on the described array base palte outside in the described color membrane substrates outside, the described light control film that converges is arranged on the described polaroid down outside; Described diffusion light controlling diaphragm is arranged on the described polaroid outside of going up.
9. wide viewing angle liquid crystal display device, it is characterized in that, comprise: liquid crystal panel as claimed in claim 8 and backlight, described backlight comprises: light source, light guide plate, be positioned at the diffusion sheet on the described light guide plate and be positioned at prismatic lens on the described diffusion sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120001064 CN201917745U (en) | 2011-01-04 | 2011-01-04 | Light control diaphragm, liquid crystal panel and wide-angle liquid crystal display device comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120001064 CN201917745U (en) | 2011-01-04 | 2011-01-04 | Light control diaphragm, liquid crystal panel and wide-angle liquid crystal display device comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201917745U true CN201917745U (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120001064 Expired - Lifetime CN201917745U (en) | 2011-01-04 | 2011-01-04 | Light control diaphragm, liquid crystal panel and wide-angle liquid crystal display device comprising same |
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| CN (1) | CN201917745U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879949A (en) * | 2012-10-23 | 2013-01-16 | 深圳市华星光电技术有限公司 | Liquid crystal display module |
| CN104238182A (en) * | 2014-09-30 | 2014-12-24 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| CN104238183A (en) * | 2014-09-30 | 2014-12-24 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| WO2020224045A1 (en) * | 2019-05-08 | 2020-11-12 | 深圳市华星光电技术有限公司 | Display panel and display device |
| CN112631001A (en) * | 2020-12-21 | 2021-04-09 | 武汉华星光电技术有限公司 | Display module and display device |
-
2011
- 2011-01-04 CN CN 201120001064 patent/CN201917745U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879949A (en) * | 2012-10-23 | 2013-01-16 | 深圳市华星光电技术有限公司 | Liquid crystal display module |
| WO2014063391A1 (en) * | 2012-10-23 | 2014-05-01 | 深圳市华星光电技术有限公司 | Liquid crystal display module |
| CN104238182A (en) * | 2014-09-30 | 2014-12-24 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| CN104238183A (en) * | 2014-09-30 | 2014-12-24 | 深圳市华星光电技术有限公司 | Liquid crystal display device |
| CN104238182B (en) * | 2014-09-30 | 2017-04-05 | 深圳市华星光电技术有限公司 | Liquid crystal indicator |
| WO2020224045A1 (en) * | 2019-05-08 | 2020-11-12 | 深圳市华星光电技术有限公司 | Display panel and display device |
| CN112631001A (en) * | 2020-12-21 | 2021-04-09 | 武汉华星光电技术有限公司 | Display module and display device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |