CN103018973A - Unit pixel of liquid crystal display - Google Patents
Unit pixel of liquid crystal display Download PDFInfo
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- CN103018973A CN103018973A CN2011103226608A CN201110322660A CN103018973A CN 103018973 A CN103018973 A CN 103018973A CN 2011103226608 A CN2011103226608 A CN 2011103226608A CN 201110322660 A CN201110322660 A CN 201110322660A CN 103018973 A CN103018973 A CN 103018973A
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- liquid crystal
- picture element
- crystal display
- electrode
- 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 group 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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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 a kind of unit picture element that light extraction efficiency has also been avoided the liquid crystal display that crosstalk phenomenon produces that promoted.
Background technology
At first, see also shown in Figure 1ly, it is the synoptic diagram that illustrates the unit picture element of 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 comprises infrabasal plate 11, bottom electrode 12, insulation course 13, top electrode 14, liquid crystal configurations layer 15 and upper substrate 16 at least.Bottom electrode 12 is located on the infrabasal plate 11.Insulation course 13 is located on the bottom electrode 12.Top electrode 14 is located on the insulation course 13, so that insulation course 13 is between bottom electrode 12 and top electrode 14.Liquid crystal configurations layer 15 is located on the top electrode 14.Upper substrate 16 is located on the liquid crystal configurations layer 15.Aforementioned top electrode 14 is made of several unit electrodes 141.And has opening 142 (S1it) between the adjacent unit electrode 141.And the outer ledge 1411 of the unit electrode 141 of the adjacent lateral side of the outer ledge 121 of the bottom electrode 12 of unit picture element and top electrode 14 vertically aligns for vertically aliging or being close to each other.
Please consult shown in Figure 2ly, it is the optical simulation result schematic diagram that illustrates the unit picture element of existing boundary electric field switching mode LCD again.Carry out optical simulation according to aforesaid unit picture element structure, can learn that this unit picture element structure has high light transmittance, has further promoted the light extraction efficiency of unit picture element.Yet, though this unit picture element structure can promote the light extraction efficiency of unit picture element, because of longitudinal overlap (overlap), and then produced (cross-talk) phenomenon of crosstalking between the unit electrode of its adjacent lateral side and the bottom electrode 12.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, with implementation and the foundation as the above-mentioned shortcoming of improvement.
One purpose of the present invention is, the unit picture element of the liquid crystal display that the outer ledge that a kind of bottom electrode is provided and the outer ledge of the opening of the adjacent lateral side of top electrode vertically align each other.
Another object of the present invention is to, provide the outer ledge of the opening of the adjacent lateral side of a kind of outer ledge of bottom electrode and top electrode to have each other distance, this distance is equal to or less than the unit picture element of 1/2nd liquid crystal display of described A/F.
A further object of the present invention is, a kind of unit picture element that light extraction efficiency has also been avoided the liquid crystal display that crosstalk phenomenon produces that not only promoted is provided.
According to above-mentioned purpose of the present invention, the invention provides a kind of unit picture element of liquid crystal display, comprise at least infrabasal plate, bottom electrode, insulation course, top electrode, liquid crystal configurations layer and upper substrate.Bottom electrode is located on the infrabasal plate, and insulation course is located on the bottom electrode, and top electrode is located on the insulation course, so that insulation course is between bottom electrode and top electrode, the liquid crystal configurations layer is located on the top electrode.Bottom electrode has outer ledge, and top electrode comprises several unit electrodes, has opening between the adjacent unit electrode, and the outer ledge of the opening of the adjacent lateral side of top electrode vertically aligns each other with the outer ledge of bottom electrode.Also or the outer ledge of the opening of the adjacent lateral side of top electrode and the outer ledge of bottom electrode have each other distance, this distance be equal to or less than opening width 1/2nd.
According to the structural design of unit picture element of the present invention, unit picture element of the present invention has high light transmittance, has further promoted light extraction efficiency.And owing to there is no longitudinal overlap between the unit electrode of the adjacent lateral side of unit picture element of the present invention and the bottom electrode, thereby avoided the generation of crosstalk phenomenon.That is the unit picture element of liquid crystal display of the present invention has not only promoted the generation that light extraction efficiency has also been avoided crosstalk phenomenon.
Further understand and understanding for those skilled in the art are had technical characterictic of the present invention and the effect that reaches, careful assistant with preferred embodiment and cooperate detailed explanation as after.
Description of drawings
Fig. 1 is the synoptic 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 synoptic 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 synoptic 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 synoptic 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:
1-has unit picture element now; The 11-infrabasal plate; The 12-bottom electrode; The 121-outer ledge; The 13-insulation course; The 14-top electrode; 141-unit's electrode; The 1411-outer ledge; The 142-opening; 15-liquid crystal configurations layer; The 16-upper substrate; The 2-unit picture element; The 21-infrabasal plate; The 22-bottom electrode; The outer ledge of 221-bottom electrode; The 23-insulation course; The 24-top electrode; 241-unit's electrode; The 242-opening; The outer ledge of the opening of the adjacent lateral side of 2421-; 25-liquid crystal configurations layer; The 26-upper substrate; The W-width; The 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 among the following embodiment illustrates with identical symbology.
At first, see also shown in Figure 3ly, it is the first preferred embodiment synoptic diagram that illustrates the unit picture element of liquid crystal display of the present invention.The unit picture element 2 of liquid crystal display of the present invention from bottom to top comprises infrabasal plate 21, bottom electrode 22, insulation course 23, top electrode 24, liquid crystal configurations layer 25 and upper substrate 26 at least.Bottom electrode 22 is located on the infrabasal plate 21.Insulation course 23 is located on the bottom electrode 22.The material of insulation course 23 is the materials such as nitride or oxide, and aforementioned nitride for example is silicon nitride, and oxide for example is silicon dioxide.Top electrode 24 is located on the insulation course 23, so that insulation course 23 is between bottom electrode 22 and top electrode 24.Liquid crystal configurations layer 25 is located on the top electrode 24.Upper substrate 26 is located on the liquid crystal configurations layer 25.Aforementioned top electrode 24 comprises several unit electrodes 241.And has opening (Slit) 242 between the adjacent unit electrode 241.The width W of each opening 242 is for equal or unequal, and in the present embodiment, the width W of only lifting each opening 242 equates to be example, but only is for example not by being limit.And the outer ledge 221 of the bottom electrode 22 of unit picture element 2 vertically aligns each other with the outer ledge 2421 of the opening 242 of top electrode 24 adjacent lateral side.
Please consult shown in Figure 4ly, it is the optical simulation result schematic diagram that illustrates unit picture element first preferred embodiment of liquid crystal display of the present invention again.Structure according to the first preferred embodiment of the present invention is carried out optical simulation, can learn that the structure of the first preferred embodiment of the present invention has high light transmittance, and then promote the light extraction efficiency of unit picture element 2.
Please consult shown in Figure 5ly, it is the second preferred embodiment synoptic diagram that illustrates the unit picture element of liquid crystal display of the present invention again.The unit picture element 2 of liquid crystal display of the present invention from bottom to top comprises infrabasal plate 21, bottom electrode 22, insulation course 23, top electrode 24, liquid crystal configurations layer 25 and upper substrate 26 at least.And from aforementioned the first preferred embodiment different be in, the outer ledge 2421 of the opening 242 of the 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 approximately less than 1/2nd of the width W of described opening 242.In the present embodiment, distance A for example be about described opening 242 width W 1/4th.
Please consult shown in Figure 6ly, it is the optical simulation result schematic diagram that illustrates unit picture element second preferred embodiment of liquid crystal display of the present invention again.Structure according to the second preferred embodiment of the present invention is carried out optical simulation, can learn that the structure of the second preferred embodiment of the present invention also has high light transmittance, and then promote the light extraction efficiency of unit picture element 2.
Please consult shown in Figure 7ly, it is the 3rd preferred embodiment synoptic diagram that illustrates the unit picture element of liquid crystal display of the present invention again.The unit picture element 2 of liquid crystal display of the present invention from bottom to top comprises infrabasal plate 21, bottom electrode 22, insulation course 23, top electrode 24, liquid crystal configurations layer 25 and upper substrate 26 at least.And from aforementioned the first preferred embodiment or the second preferred embodiment different be in, the outer ledge 2421 of the opening 242 of the adjacent lateral side of the outer ledge 221 of the bottom electrode 22 of unit picture element 2 and top electrode 24 has each other apart from B, this be about apart from B described opening 242 width W 1/2nd.
Please consult shown in Figure 8ly, it is the optical simulation result schematic diagram that illustrates unit picture element the 3rd preferred embodiment of liquid crystal display of the present invention again.Structure according to the 3rd preferred embodiment of the present invention is carried out optical simulation, can learn that the structure of the 3rd preferred embodiment of the present invention also has high light transmittance, and then promote the light extraction efficiency of unit picture element 2.
What need to specify is, 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, and this is that the related personnel who knows the technology of the present invention field can understand easily, so do not repeat them here.
What need special instruction is again, upper substrate 26 tops of the unit picture element 2 of liquid crystal display of the present invention also are provided with polaroid, and the below of infrabasal plate 21 also is provided with another polaroid and backlight module, yet to be the related personnel who knows the technology of the present invention field can understand easily for this, so also repeat no more at this.
In sum, the unit picture element of liquid crystal display of the present invention has following advantage at least:
The outer ledge of the bottom electrode of the unit picture element of liquid crystal display of the present invention vertically aligns each other with the outer ledge of the opening of the adjacent lateral side of top electrode; Also or the outer ledge of the opening of the adjacent lateral side of the outer ledge of the bottom electrode of unit picture element and top electrode have each other distance, this distance be approximately equal to or less than described opening width 1/2nd.According to unit picture element of the present invention, can learn that unit picture element of the present invention has high light transmittance, has further promoted light extraction efficiency.And since the unit electrode of the adjacent lateral side of unit picture element of the present invention and bottom electrode between there is no longitudinal overlap, thereby avoided the generation of crosstalk phenomenon.The unit picture element of liquid crystal display of the present invention has not only promoted the generation that light extraction efficiency has also been avoided crosstalk phenomenon.
The above only is the illustrative explanation, but not is restricted explanation.Anyly do not break away from spirit of the present invention and category, and to its equivalent modifications of carrying out or change, all should be contained in the claim scope of the present invention.
Claims (10)
1. the unit picture element of a liquid crystal display is characterized in that, comprises at least:
One bottom electrode, described bottom electrode are located on the infrabasal plate, and described bottom electrode has an outer ledge;
One insulation course, described insulation course are located on the described bottom electrode;
One top electrode, described top electrode is located on the described insulation course, so that described insulation course is between described bottom electrode and described top electrode, described top electrode comprises several unit electrodes, have an opening between the described unit of adjacent each electrode, the outer ledge of the described opening of the adjacent lateral side of described top electrode vertically 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 the described top electrode.
2. the unit picture element of liquid crystal display as claimed in claim 1 is characterized in that, also comprises a upper substrate and described infrabasal plate, and described bottom electrode is located on the described infrabasal plate, and described upper substrate is located on the described liquid crystal configurations layer.
3. the unit picture element of liquid crystal display as claimed in claim 1 is characterized in that, a width of each described opening equates.
4. the unit picture element of liquid crystal display as claimed in claim 1 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 is characterized in that, the material of described insulation course is nitride or oxide.
6. the unit picture element of a liquid crystal display is characterized in that, comprises at least:
One bottom electrode, described bottom electrode are located on the infrabasal plate, and described bottom electrode has an outer ledge;
One insulation course, described insulation course are located on the described bottom electrode;
One top electrode, described top electrode is located on the described insulation course, so that described insulation course is between described bottom electrode and described top electrode, described top electrode comprises several unit electrodes, has an opening between the adjacent described unit electrode, the outer ledge of the described opening of the adjacent lateral side of described top electrode and the outer ledge of described bottom electrode have a distance each other, described distance be equal to or less than described opening a width 1/2nd; And
One liquid crystal configurations layer, described liquid crystal configurations layer is located on the described top electrode.
7. the unit picture element of liquid crystal display as claimed in claim 6 is characterized in that, also comprises a upper substrate and described infrabasal plate, and described bottom electrode is located on the described infrabasal plate, and described upper substrate is located on the described liquid crystal configurations layer.
8. the unit picture element of liquid crystal display as claimed in claim 6 is characterized in that, the described width of each described opening equates.
9. the unit picture element of liquid crystal display as claimed in claim 6 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 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 |
|---|---|---|---|
| TW100134201 | 2011-09-22 | ||
| TW100134201A TWI456323B (en) | 2011-09-22 | 2011-09-22 | Unit pixel of liquid-crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103018973A true CN103018973A (en) | 2013-04-03 |
| CN103018973B 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 |
Country Status (2)
| Country | Link |
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| CN (1) | CN103018973B (en) |
| TW (1) | TWI456323B (en) |
Cited By (1)
| 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 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI567463B (en) * | 2015-10-14 | 2017-01-21 | 群創光電股份有限公司 | Display panels and electronic devices |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08160460A (en) * | 1994-12-09 | 1996-06-21 | Sanyo Electric Co Ltd | Liquid crystal display device |
| US20100110316A1 (en) * | 2008-11-04 | 2010-05-06 | Chiu-Jung Huang | Stereoscopic display device |
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08160460A (en) * | 1994-12-09 | 1996-06-21 | Sanyo Electric Co Ltd | Liquid crystal display device |
| 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 |
| US20100110316A1 (en) * | 2008-11-04 | 2010-05-06 | Chiu-Jung Huang | Stereoscopic display device |
| 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 |
Cited By (1)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201314334A (en) | 2013-04-01 |
| TWI456323B (en) | 2014-10-11 |
| CN103018973B (en) | 2015-08-05 |
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