CN103018973B - Unit pixel of liquid crystal display - Google Patents
Unit pixel of liquid crystal display Download PDFInfo
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- CN103018973B CN103018973B CN201110322660.8A CN201110322660A CN103018973B CN 103018973 B CN103018973 B CN 103018973B CN 201110322660 A CN201110322660 A CN 201110322660A CN 103018973 B CN103018973 B CN 103018973B
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- liquid crystal
- electrode
- picture element
- crystal display
- unit picture
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 62
- 238000009413 insulation Methods 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 4
- 150000004767 nitrides Chemical group 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 16
- 238000013041 optical simulation Methods 0.000 description 12
- 238000000605 extraction Methods 0.000 description 11
- 230000005684 electric field Effects 0.000 description 6
- 238000002834 transmittance Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
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- Liquid Crystal (AREA)
Abstract
The invention discloses a unit pixel of a liquid crystal display, which at least comprises a lower electrode, an insulating layer and an upper electrode. The upper electrode comprises a plurality of unit electrodes, an opening is formed between every two adjacent unit electrodes, and the outer edge of the opening, which is most adjacent to the outer side, of the upper electrode and the outer edge of the lower electrode are longitudinally aligned with each other. Or the outer edge of the opening of the upper electrode closest to the outer side and the outer edge of the lower electrode have a distance with each other, and the distance is equal to or less than one half of the width of the opening. The unit electrode which is closest to the outer side of the unit pixel and the lower electrode are not longitudinally overlapped, so that the crosstalk phenomenon is avoided. That is, the unit pixel not only improves the light emitting efficiency, but also avoids the crosstalk phenomenon.
Description
Technical field
The present invention relates to a kind of unit picture element of liquid crystal display, specifically refer to that a kind of light extraction efficiency that improves it also avoid the unit picture element of liquid crystal display that crosstalk phenomenon produces.
Background technology
First, refer to shown in Fig. 1, it is the schematic diagram of the unit picture element illustrating existing boundary electric field switching mode LCD.The existing unit picture element 1 that boundary electric field switches (Fringe Field Switching, FFS) liquid crystal display at least comprises infrabasal plate 11, bottom electrode 12, insulation course 13, top electrode 14, liquid crystal configurations layer 15 and upper substrate 16.Bottom electrode 12 is located on infrabasal plate 11.Insulation course 13 is located on bottom electrode 12.Top electrode 14 is located on insulation course 13, makes insulation course 13 between bottom electrode 12 and top electrode 14.Liquid crystal configurations layer 15 is located on top electrode 14.Upper substrate 16 is located on liquid crystal configurations layer 15.Aforementioned top electrode 14 is made up of several unitized electrode 141.And between adjacent unitized electrode 141, there is opening 142 (S1it).And the outer ledge 1411 of the unitized electrode 141 of the most adjacent lateral side of the outer ledge 121 of the bottom electrode 12 of unit picture element and top electrode 14 longitudinally aligns for longitudinally aliging or being close to each other.
Shown in Fig. 2, it is the optical simulation result schematic diagram of the unit picture element illustrating existing boundary electric field switching mode LCD.Carry out optical simulation according to aforesaid unit pixel structure, can learn that this unit pixel structure has high light transmittance, improve the light extraction efficiency of unit picture element further.But, though this unit pixel structure can promote the light extraction efficiency of unit picture element, because of longitudinal overlap (overlap) between the unitized electrode of its most adjacent lateral side and bottom electrode 12, and then create crosstalk (cross-talk) phenomenon.The aforementioned technical task for remaining unsolved.
Summary of the invention
Because every problem of prior art, the present invention proposes a kind of unit picture element of liquid crystal display, using as implementation and the foundation of improving above-mentioned shortcoming.
One object of the present invention is, the unit picture element of the liquid crystal display providing the outer ledge of the opening of the most adjacent lateral side of a kind of outer ledge of bottom electrode and top electrode longitudinally to align each other.
Another object of the present invention is to, provide the outer ledge of the opening of a kind of outer ledge of bottom electrode and the most adjacent lateral side of top electrode to have distance each other, this distance is equal to or less than the unit picture element of the liquid crystal display of 1/2nd of described A/F.
Another object of the present invention is, provides a kind of and not only improves the unit picture element that light extraction efficiency it also avoid the liquid crystal display that crosstalk phenomenon produces.
According to above-mentioned purpose of the present invention, the invention provides a kind of unit picture element of liquid crystal display, at least comprise infrabasal plate, bottom electrode, insulation course, top electrode, liquid crystal configurations layer and upper substrate.Bottom electrode is located on infrabasal plate, and insulation course is located on bottom electrode, and top electrode is located on insulation course, makes insulation course between bottom electrode and top electrode, and liquid crystal configurations layer is located on top electrode.Bottom electrode has outer ledge, and top electrode comprises several unitized electrode, has opening between adjacent unitized electrode, and the outer ledge of opening of the most adjacent lateral side of top electrode longitudinally aligns each other with the outer ledge of bottom electrode.Also or the outer ledge of opening of the most adjacent lateral side of top electrode and the outer ledge of bottom electrode there is distance each other, this distance is equal to or less than 1/2nd of the width of opening.
According to the structural design of unit picture element of the present invention, unit picture element of the present invention has high light transmittance, improves light extraction efficiency further.And owing to there is no longitudinal overlap between the unitized electrode of the most adjacent lateral side of unit picture element of the present invention and bottom electrode, thus avoid the generation of crosstalk phenomenon.That is the unit picture element of liquid crystal display of the present invention not only improves the generation that light extraction efficiency it also avoid crosstalk phenomenon.
For making those skilled in the art have a better understanding and awareness technical characteristic of the present invention and effect of reaching, careful assistant is with preferred embodiment and coordinate detailed description as rear.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the unit picture element of existing boundary electric field switching mode LCD;
Fig. 2 is the optical simulation result schematic diagram of the unit picture element of existing boundary electric field switching mode LCD;
Fig. 3 is the first preferred embodiment schematic diagram of the unit picture element of liquid crystal display of the present invention;
Fig. 4 is the optical simulation result schematic diagram of the first preferred embodiment of the unit picture element of liquid crystal display of the present invention;
Fig. 5 is the second preferred embodiment schematic diagram of the unit picture element of liquid crystal display of the present invention;
Fig. 6 is the optical simulation result schematic diagram of the second preferred embodiment of the unit picture element of liquid crystal display of the present invention;
Fig. 7 is the 3rd preferred embodiment schematic diagram of the unit picture element of liquid crystal display of the present invention; And
Fig. 8 is the optical simulation result schematic diagram of the 3rd preferred embodiment of the unit picture element of liquid crystal display of the present invention.
Description of reference numerals:
The existing unit picture element of 1-; 11-infrabasal plate; 12-bottom electrode; 121-outer ledge; 13-insulation course; 14-top electrode; 141-unitized electrode; 1411-outer ledge; 142-opening; 15-liquid crystal configurations layer; 16-upper substrate; 2-unit picture element; 21-infrabasal plate; 22-bottom electrode; The outer ledge of 221-bottom electrode; 23-insulation course; 24-top electrode; 241-unitized electrode; 242-opening; The outer ledge of the opening of the most adjacent lateral side of 2421-; 25-liquid crystal configurations layer; 26-upper substrate; W-width; A-distance; And B-distance.
Embodiment
Hereinafter with reference to relevant drawings, the unit picture element of liquid crystal display of the present invention is described, for ease of understanding, the same components in following embodiment illustrates with identical symbology.
First, refer to shown in Fig. 3, it is the first preferred embodiment schematic diagram of the unit picture element illustrating liquid crystal display of the present invention.The unit picture element 2 of liquid crystal display of the present invention from bottom to top at least comprises infrabasal plate 21, bottom electrode 22, insulation course 23, top electrode 24, liquid crystal configurations layer 25 and upper substrate 26.Bottom electrode 22 is located on infrabasal plate 21.Insulation course 23 is located on bottom electrode 22.The material of insulation course 23 is the material such as nitride or oxide, and aforementioned nitride is such as silicon nitride, and oxide is such as silicon dioxide.Top electrode 24 is located on insulation course 23, makes insulation course 23 between bottom electrode 22 and top electrode 24.Liquid crystal configurations layer 25 is located on top electrode 24.Upper substrate 26 is located on liquid crystal configurations layer 25.Aforementioned top electrode 24 comprises several unitized electrode 241.And between adjacent unitized electrode 241, there is opening (Slit) 242.The width W of each opening 242 is equal or unequal, and in the present embodiment, only lifting the width W of each opening 242 equal is example, but is only citing not by being limit.And the outer ledge 2421 of the opening 242 of the most adjacent lateral side of the outer ledge 221 of the bottom electrode 22 of unit picture element 2 and top electrode 24 longitudinally aligns each other.
Shown in Fig. 4, it is the optical simulation result schematic diagram of unit picture element first preferred embodiment illustrating liquid crystal display of the present invention.Structure according to the first preferred embodiment of the present invention carries out optical simulation, can learn that the structure of the first preferred embodiment of the present invention has high light transmittance, and then improve the light extraction efficiency of unit picture element 2.
Shown in Fig. 5, it is the second preferred embodiment schematic diagram of the unit picture element illustrating liquid crystal display of the present invention.The unit picture element 2 of liquid crystal display of the present invention from bottom to top at least comprises infrabasal plate 21, bottom electrode 22, insulation course 23, top electrode 24, liquid crystal configurations layer 25 and upper substrate 26.And from aforementioned first preferred embodiment different be in, the outer ledge 2421 of the opening 242 of the most adjacent lateral side of the outer ledge 221 of the bottom electrode 22 of unit picture element 2 and top electrode 24 has distance A each other, and this distance A is about less than 1/2nd of the width W of described opening 242.In the present embodiment, distance A is such as about 1/4th of the width W of described opening 242.
Shown in Fig. 6, it is the optical simulation result schematic diagram of unit picture element second preferred embodiment illustrating liquid crystal display of the present invention.Structure according to the second preferred embodiment of the present invention carries out optical simulation, can learn that the structure of the second preferred embodiment of the present invention also has high light transmittance, and then improve the light extraction efficiency of unit picture element 2.
Shown in Fig. 7, it is the 3rd preferred embodiment schematic diagram of the unit picture element illustrating liquid crystal display of the present invention.The unit picture element 2 of liquid crystal display of the present invention from bottom to top at least comprises infrabasal plate 21, bottom electrode 22, insulation course 23, top electrode 24, liquid crystal configurations layer 25 and upper substrate 26.And from aforementioned first preferred embodiment or the second preferred embodiment different be in, the outer ledge 2421 of the opening 242 of the most adjacent lateral side of the outer ledge 221 of the bottom electrode 22 of unit picture element 2 and top electrode 24 has distance B each other, and this distance B is about 1/2nd of the width W of described opening 242.
Shown in Fig. 8, it is the optical simulation result schematic diagram of unit picture element the 3rd preferred embodiment illustrating liquid crystal display of the present invention.Structure according to the 3rd preferred embodiment of the present invention carries out optical simulation, can learn that the structure of the 3rd preferred embodiment of the present invention also has high light transmittance, and then improve the light extraction efficiency of unit picture element 2.
Specifically the unit picture element 2 of liquid crystal display of the present invention is particularly useful for the liquid crystal display of boundary electric field suitching type, this can understand easily for the related personnel knowing the technology of the present invention field, therefore does not repeat them here.
What need illustrate is again, also polaroid is provided with above the upper substrate 26 of the unit picture element 2 of liquid crystal display of the present invention, and the below of infrabasal plate 21 is also provided with another polaroid and backlight module, but this can understand easily for the related personnel knowing the technology of the present invention field, therefore also repeat no more at this.
In sum, the unit picture element of liquid crystal display of the present invention at least has following advantage:
The outer ledge of the bottom electrode of the unit picture element of liquid crystal display of the present invention longitudinally aligns each other with the outer ledge of the opening of the most adjacent lateral side of top electrode; Also or the outer ledge of the opening of the outer ledge of the bottom electrode of unit picture element and the most adjacent lateral side of top electrode there is distance each other, this distance is approximately equal to or less than 1/2nd of the width of described opening.According to unit picture element of the present invention, can learn that unit picture element of the present invention has high light transmittance, improve light extraction efficiency further.And owing to there is no longitudinal overlap between the unitized electrode of the most adjacent lateral side of unit picture element of the present invention and bottom electrode, thus avoid the generation of crosstalk phenomenon.The unit picture element of liquid crystal display of the present invention not only improves the generation that light extraction efficiency it also avoid crosstalk phenomenon.
The foregoing is only illustrative to illustrate, but not be restricted explanation.Anyly do not depart from spirit of the present invention and category, and to its equivalent modifications of carrying out or change, all should be contained in right of the present invention.
Claims (10)
1. a unit picture element for liquid crystal display, is characterized in that, at least comprises:
One bottom electrode, described bottom electrode is located on an infrabasal plate, and described bottom electrode has an outer ledge;
One insulation course, described insulation course is located on described bottom electrode;
One top electrode, described top electrode is located on described insulation course, make described insulation course between described bottom electrode and described top electrode, described top electrode comprises several unitized electrode, have an opening between adjacent each described unitized electrode, the outer ledge of described opening of the most adjacent lateral side of described top electrode longitudinally aligns each other with the outer ledge of described bottom electrode; And
One liquid crystal configurations layer, described liquid crystal configurations layer is located on described top electrode.
2. the unit picture element of liquid crystal display as claimed in claim 1, it is characterized in that, also comprise a upper substrate and described infrabasal plate, described bottom electrode is located on described infrabasal plate, and described upper substrate is located on described liquid crystal configurations layer.
3. the unit picture element of liquid crystal display as claimed in claim 1, it is characterized in that, a width of each described opening is equal.
4. the unit picture element of liquid crystal display as claimed in claim 1, it is characterized in that, a width of each described opening is unequal.
5. the unit picture element of liquid crystal display as claimed in claim 1, it is characterized in that, the material of described insulation course is nitride or oxide.
6. a unit picture element for liquid crystal display, is characterized in that, at least comprises:
One bottom electrode, described bottom electrode is located on an infrabasal plate, and described bottom electrode has an outer ledge;
One insulation course, described insulation course is located on described bottom electrode;
One top electrode, described top electrode is located on described insulation course, make described insulation course between described bottom electrode and described top electrode, described top electrode comprises several unitized electrode, between adjacent described unitized electrode, there is an opening, the outer ledge of described opening and the outer ledge of described bottom electrode of the most adjacent lateral side of described top electrode have a distance each other, described distance refer to the outer ledge of opening and the outer ledge of described bottom electrode bottom electrode the distance of projection planar, described distance is equal to or less than 1/2nd of a width of described opening, and within the outer ledge of described bottom electrode is positioned at the outer ledge of described opening, and
One liquid crystal configurations layer, described liquid crystal configurations layer is located on described top electrode.
7. the unit picture element of liquid crystal display as claimed in claim 6, it is characterized in that, also comprise a upper substrate and described infrabasal plate, described bottom electrode is located on described infrabasal plate, and described upper substrate is located on described liquid crystal configurations layer.
8. the unit picture element of liquid crystal display as claimed in claim 6, it is characterized in that, the described width of each described opening is equal.
9. the unit picture element of liquid crystal display as claimed in claim 6, it is characterized in that, the described width of each described opening is unequal.
10. the unit picture element of liquid crystal display as claimed in claim 6, it is characterized in that, the material of described insulation course is nitride or oxide.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100134201A TWI456323B (en) | 2011-09-22 | 2011-09-22 | Unit pixel of liquid-crystal display |
| TW100134201 | 2011-09-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103018973A CN103018973A (en) | 2013-04-03 |
| CN103018973B true CN103018973B (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110322660.8A Active CN103018973B (en) | 2011-09-22 | 2011-10-21 | Unit pixel of liquid crystal display |
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| CN (1) | CN103018973B (en) |
| TW (1) | TWI456323B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181733A (en) * | 2013-05-20 | 2014-12-03 | 群创光电股份有限公司 | Display device and transistor array substrate thereof |
| TWI567463B (en) * | 2015-10-14 | 2017-01-21 | 群創光電股份有限公司 | Display panels and electronic devices |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833200A (en) * | 2009-03-13 | 2010-09-15 | 北京京东方光电科技有限公司 | Horizontal electric field type liquid crystal display device and manufacturing method thereof |
| CN102033376A (en) * | 2009-10-06 | 2011-04-27 | 乐金显示有限公司 | Fringe field switching mode liquid crystal display device and method of fabricating the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3469662B2 (en) * | 1994-12-09 | 2003-11-25 | 三洋電機株式会社 | Liquid crystal display |
| KR101291860B1 (en) * | 2005-12-28 | 2013-07-31 | 엘지디스플레이 주식회사 | 2-dimension image and 3-dimension image display device and manufacturing for display device thereof |
| KR101294232B1 (en) * | 2007-06-08 | 2013-08-07 | 엘지디스플레이 주식회사 | Fringe field switching mode liquid crystal display device and the method for fabricating the same |
| TW201019018A (en) * | 2008-11-04 | 2010-05-16 | Chunghwa Picture Tubes Ltd | Stereoscopic display device |
| TWI392918B (en) * | 2009-03-27 | 2013-04-11 | Tpo Displays Corp | System for displaying images and electronic device |
-
2011
- 2011-09-22 TW TW100134201A patent/TWI456323B/en active
- 2011-10-21 CN CN201110322660.8A patent/CN103018973B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833200A (en) * | 2009-03-13 | 2010-09-15 | 北京京东方光电科技有限公司 | Horizontal electric field type liquid crystal display device and manufacturing method thereof |
| CN102033376A (en) * | 2009-10-06 | 2011-04-27 | 乐金显示有限公司 | Fringe field switching mode liquid crystal display device and method of fabricating the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103018973A (en) | 2013-04-03 |
| TWI456323B (en) | 2014-10-11 |
| TW201314334A (en) | 2013-04-01 |
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