CN101206358A - Liquid crystal display apparatus - Google Patents
Liquid crystal display apparatus Download PDFInfo
- Publication number
- CN101206358A CN101206358A CNA2006101579002A CN200610157900A CN101206358A CN 101206358 A CN101206358 A CN 101206358A CN A2006101579002 A CNA2006101579002 A CN A2006101579002A CN 200610157900 A CN200610157900 A CN 200610157900A CN 101206358 A CN101206358 A CN 101206358A
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- Prior art keywords
- liquid crystal
- substrate
- crystal indicator
- electrode layer
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 86
- 239000010410 layer Substances 0.000 claims abstract description 96
- 239000012044 organic layer Substances 0.000 claims abstract description 25
- 238000002161 passivation Methods 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims description 61
- 238000009413 insulation Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 4
- 239000011368 organic material Substances 0.000 claims description 3
- 229910010272 inorganic material Inorganic materials 0.000 claims description 2
- 239000011147 inorganic material Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- -1 silicon nitrides Chemical class 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000035515 penetration Effects 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 5
- 239000010409 thin film Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000005855 radiation Effects 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
- 238000002834 transmittance Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a LCD device, comprising a first basal plate, a second basal plate opposite to the first basal plate, and a liquid crystal layer positioned between the first basal plate and the second basal plate. The first basal plate comprises a plurality of data lines, a passivation layer covering the surface of the data lines, an organic layer arranged on the surface of the passivation layer, a plurality of lugs alternately arranged on the surface of the organic layer, and a penetration electrode layer. The lugs are arranged oppositely to the data lines, and the surfaces of the lugs are covered with a reflection electrode layer. The reflection electrode layer and the data lines overlap each other. The present invention effectively decreases crosstalk phenomena and improves display effect.
Description
Technical field
The invention relates to a kind of liquid crystal indicator, particularly about a kind of Transflective liquid crystal indicator.
Background technology
Radiation is low because of having for liquid crystal indicator, little power consumption and characteristics such as compact, be applied widely, and along with the ripe and innovation of correlation technique, its kind is various day by day.
According to the difference of light source that liquid crystal indicator utilizes, liquid crystal indicator mainly can be divided into penetrating type liquid crystal indicator, reflection-type liquid-crystal display device and Transflective liquid crystal indicator.The penetrating type liquid crystal indicator must be provided with a backlight at the display panels back side and show to realize image, yet the power consumption of backlight accounts for whole penetrating type liquid crystal indicator power consumption half, so the power consumption of penetrating type liquid crystal indicator is bigger.Reflection-type liquid-crystal display device can solve the big problem of penetrating type liquid crystal indicator power consumption, but is difficult to realize that image shows under the faint environment of light.The Transflective liquid crystal indicator can overcome the above problems.
Seeing also Fig. 1, is a kind of cross-sectional view of prior art Transflective liquid crystal indicator.This liquid crystal indicator 100 comprise one first substrate 101 and one second substrate 102 that is oppositely arranged and be clamped in this first substrate 101 and this second substrate 102 between liquid crystal layer 103.
This first substrate 101 comprises one first substrate 110 and a common electrode layer 170, and this common electrode layer 170 is arranged on the surface of this first substrate 110 near this liquid crystal layer 103.This second substrate 102 comprises one second substrate 120, an insulation course 140, many data lines 180, a passivation layer 150, a plurality of projection 104, a through electrode layer 160 and reflection electrode layers 105.
This insulation course 140 and this data line 180 are successively set on this second substrate 120 towards the surface of this first substrate 110, and this data line 180 is used for transmitting the gray scale voltage of these liquid crystal indicator 100 display frames.This passivation layer 150 covers this data line 180 and this insulation course 140 not by the surface of these data line 180 overlay areas.
This projection 104 is arranged on this passivation layer 150 surfaces, and the aperture opening ratio (Aperture Ratio) in order to guarantee this liquid crystal indicator 100, and this projection 104 is oppositely arranged with this data line 180.This reflection electrode layer 105 covers this projection 104 surfaces, and overlaps (Overlap) mutually in vertical direction with this data line 180, and this reflection electrode layer 105 is provided with opening (not indicating) towards the surface of this first substrate 110; This through electrode layer 160 is arranged alternately on this passivation layer 150 surfaces with this projection 104.
When this liquid crystal indicator 100 was in reflective mode of operation, extraneous light was injected this liquid crystal layer 103 by this first substrate 110, wherein part light after 105 reflections of this reflection electrode layer towards these first substrate, 110 outgoing.When this liquid crystal indicator 100 is in the penetration mode of operation, backlightly injects this liquid crystal layer 103, and directly pass these liquid crystal layer 103 backs and penetrate by this first substrate 110 by this second substrate 120.This liquid crystal indicator 100 is realized the function of semi-penetration semi-reflective thus, both cuts down the consumption of energy, and is implemented in again to carry out the image demonstration under the faint environment of extraneous light.
In this liquid crystal indicator 100, directly pass this projection 104 and produce light leakage phenomena for fear of the light by these second substrate, 120 incidents, reflection electrode layer 105 and this data line 180 on these projection 104 surfaces overlap mutually.But this reflection electrode layer 105 is easy to generate stray capacitance with the part that this data line 180 overlaps mutually.When gray scale voltage changes, owing to discharging and recharging of this stray capacitance, the gray scale voltage that this data line 180 is transmitted will be had a strong impact on, and cause this liquid crystal indicator 100 to produce serious cross-talk (Crosstalk) phenomenon thus, influence display effect.
Summary of the invention
For solving the serious problem of prior art liquid crystal indicator cross-talk phenomenon, be necessary to provide a kind of liquid crystal indicator that reduces the cross-talk phenomenon.
A kind of liquid crystal indicator, it comprise one first substrate, one and second substrate and that is oppositely arranged of this first substrate be clamped in liquid crystal layer between this first substrate and this second substrate, this first substrate comprises many data lines, an organic layer that is arranged on this passivation layer surface that covers the passivation layer of this data line,, a plurality of projections that are arranged alternately on this organic layer surface and a through electrode layer, this projection and this data line are oppositely arranged, its surface coverage one reflection electrode layer, this reflection electrode layer and this data line overlap mutually.
Compared to prior art, liquid crystal indicator of the present invention, it has increased by an organic layer between projection and data line, this organic layer makes the reflection electrode layer on this projection surface and the stray capacitance between this data line reduce greatly, reduce thus since this stray capacitance when discharging and recharging to the influence of the gray scale voltage of this liquid crystal indicator picture element display frame, and then reduce the cross-talk phenomenon of this liquid crystal indicator, improve the display effect of this liquid crystal indicator.
Description of drawings
Fig. 1 is a kind of cross-sectional view of prior art liquid crystal indicator.
Fig. 2 is the cross-sectional view of the liquid crystal indicator that disclosed of a kind of better embodiment of the present invention.
Embodiment
Seeing also Fig. 2, is the cross-sectional view of the liquid crystal indicator that disclosed of a kind of better embodiment of the present invention.This liquid crystal indicator 200 comprise one first substrate 201 and one second substrate 202 that is oppositely arranged and be clamped in this first substrate 201 and this second substrate 202 between liquid crystal layer 203.
This first substrate 201 comprises one first substrate 210 and a common electrode layer 270, and this common electrode layer 270 is arranged on the surface of this first substrate 210 near these liquid crystal layers 203, and this common electrode layer 270 be indium tin oxide (Indium Tin Oxide, ITO).
This second substrate 202 comprises one second substrate 220, an insulation course 240, many data lines 280, a passivation layer 250, an organic layer 230, a plurality of projection 204, a through electrode layer 260 and reflection electrode layers 205.
This insulation course 240 and this data line 280 are successively set on the surface of this second substrate 220 towards this first substrate 210.This insulation course 240 is a monox, and this data line 280 can be the metal of high conductivity such as aluminium, copper, chromium, tungsten, and it is used to transmit the gray scale voltage of these liquid crystal indicator 200 display frames.
This passivation layer 250 covers this data line 280 and this insulation course 240 not by the surface of these data line 280 overlay areas, and it can be inorganic material such as monox or silicon nitride.This organic layer 230 is arranged on this passivation layer 250 surfaces, and this organic layer 230 is for having the organic material of insulativity, high light transmittance and low-k, its thickness is between 1.5 microns～2.5 microns, and a kind of preferred scheme is: the thickness of this organic layer 230 is roughly 2 microns.
This projection 204 is arranged on this organic layer 230 surfaces, and be oppositely arranged with this data line 280, make this projection 204 can not take the effective light transmission area of this liquid crystal indicator 200 thus, guarantee the aperture opening ratio of this liquid crystal indicator 200, this projection 204 is organic insulations, its thickness is between 1.5 microns～2.5 microns, and a kind of preferred scheme is: the thickness of this projection 204 is roughly 1.95 microns.
This reflection electrode layer 205 is metal or alloy of high reflection, it covers this projection 204 surfaces, and overlap mutually in vertical direction with this data line 280, and in order to guarantee can not to be short-circuited between the adjacent image point electrode in this liquid crystal indicator 200, this reflection electrode layer 205 is provided with opening (not indicating) towards the surface of this first substrate 210.
This through electrode layer 260 is indium tin oxides, and itself and this projection 204 is arranged alternately on this organic layer 230 surfaces.This reflection electrode layer 205 and the pixel capacitors of this through electrode layer 260 as this liquid crystal indicator 200 form electric field with this common electrode layer 270, and the liquid crystal molecule of controlling this liquid crystal layer 203 is rotated.
Distance between this reflection electrode layer 205 and this common electrode layer 270 equals half of distance between this common electrode layer 270 and this through electrode layer 260.When this liquid crystal indicator 200 was in reflective mode of operation, extraneous light was injected this liquid crystal layer 203 by first substrate 210, and wherein part light forms reflected light and by these first substrate, 210 outgoing after 205 reflections of this reflection electrode layer; When this liquid crystal indicator 200 is in the penetration mode of operation, backlightly injects this liquid crystal layer 203, and after directly passing this liquid crystal layer 203, form transmitted light by these first substrate, 210 outgoing by this second substrate 220.Because the thickness between this reflection electrode layer 205 and this common electrode layer 270 equals half of distance between through electrode layer 260 and this common electrode layer 270, therefore, light path was consistent when this reflected light was propagated in this liquid crystal layer 203 with this transmitted light, can delay not take place and cause both to produce phase differential at this liquid crystal layer 203, influence display effect because of light.
This liquid crystal indicator 200 just can be implemented in extraneous light and utilize stronger the time by these first substrate, 210 incidents and at the extraneous light of these reflection electrode layer 205 reflections light source as this liquid crystal indicator 200; And when extraneous light is faint, utilize these liquid crystal indicator 200 inside to provide, and by the backlight of these second substrate, 220 incidents (figure does not show) as light source, realize semi-penetration semi-reflective thus, both reduced the energy consumption of this liquid crystal indicator 200, realized again that this liquid crystal indicator 200 carried out image and shows under the faint environment of extraneous light.
In this liquid crystal indicator 200, this projection 204 is oppositely arranged with this data line 280, and directly pass this projection 204 and produce light leakage phenomena for fear of light by these second substrate, 220 incidents, reflection electrode layer 205 and this data line 280 on these projection 204 surfaces overlap mutually, cause this reflection electrode layer 205 and the part that this data line 280 overlaps mutually to produce stray capacitance C thus.By the computing formula C=ε s/d of capacity plate antenna, just can obtain the size of this stray capacitance C; Wherein, ε is a specific inductive capacity, and s is a platen area, d be distance between plates from.Particularly, in this reflection electrode layer 205 and this data line 280 stray capacitance C that overlapping produces mutually, ε is this reflection electrode layer 205 and these data line 280 overlappings dielectric specific inductive capacity partly, s is the area of this reflection electrode layer 205 and these data line 280 both opposite faces, and d is the distance between this reflection electrode layer 205 and this data line 280.
In this liquid crystal indicator 200, it is provided with this organic layer 230 on these passivation layer 250 surfaces, thus comprised this passivation layer 250 between this reflection electrode layer 205 and this data line 280, this organic layer 230 and this projection 204.Owing to overlap the mutually stray capacitance C that produces of this reflection electrode layer 205 and this data line 280 can be equivalent to this passivation layer 250 and this projection 204 as dielectric capacity plate antenna C
1With with this organic layer 230 as dielectric capacity plate antenna C
2Both resulting total capacitances of connecting mutually, its capacitance is less than this capacitor C
1With this capacitor C
2Among both any one.Therefore, compare as dielectric stray capacitance with this projection 104 with this passivation layer 150 in prior art liquid crystal indicator 100, the stray capacitance C of liquid crystal indicator 200 of the present invention diminishes.Thickness by this organic layer 230 of effective control reduces capacitor C
2Size, just can make owing to overlap the mutually stray capacitance C that produces of this reflection electrode layer 205 and this data line 280 is reduced to this liquid crystal indicator 200 and can produce tangible cross-talk phenomenon.And, because the specific inductive capacity of this organic layer 230 is less, this capacitor C
2Corresponding less, make this stray capacitance C further reduce.Therefore, compared to prior art, liquid crystal indicator 200 of the present invention, it is by having increased this organic layer 230 on these passivation layer 250 surfaces, reduced this stray capacitance C greatly, by discharging and recharging of this stray capacitance C and to the influence of gray scale voltage, thereby reduce the cross-talk phenomenon of this liquid crystal indicator 200 when the gray scale voltage that has obviously reduced display frame thus changes, improve the display effect of this liquid crystal indicator 200.
Being formed on the technology of this organic layer 230 is simple, it only needs to form this organic layer 230 and a projection layer successively on its surface at the back rubbing method (Coating) that utilizes that forms this passivation layer 250, utilize the optics diffraction theory to be etched with these a plurality of projections 204 of formation by a slit light shield (Slit Mask) again, do not need to increase light shield quantity in its processing procedure, so its manufacturing cost can not roll up.
In addition, liquid crystal indicator 200 of the present invention is not limited to above embodiment and describes.For example, the material that this organic layer 230 is adopted also can be identical with this projection 204, this liquid crystal indicator 200 also can further comprise a plurality of thin film transistor (TFT) (Thin Film Transistor that are arranged on this second substrate 202, TFT), the drain electrode of this thin film transistor (TFT) is connected with this through electrode layer 260 with this reflection electrode layer 205, and this projection 204 is oppositely arranged with these a plurality of thin film transistor (TFT)s, and this projection 204 can also be the material of other high resistivity and low-k.
Claims (10)
1. liquid crystal indicator, it comprises one first substrate, one and second substrate and that is oppositely arranged of this first substrate be clamped in liquid crystal layer between this first substrate and this second substrate, this first substrate comprises many data lines, one covers the passivation layer on this data line surface, a plurality of projections that are arranged alternately on this organic layer surface and a through electrode layer, this projection and this data line are oppositely arranged, its surface coverage one reflection electrode layer, this reflection electrode layer and this data line overlap mutually, it is characterized in that: also be provided with an organic layer between this passivation layer and this projection.
2. liquid crystal indicator as claimed in claim 1 is characterized in that: this organic layer is an organic material transparent and insulation.
3. liquid crystal indicator as claimed in claim 2 is characterized in that: this organic layer utilizes rubbing method to make.
4. liquid crystal indicator as claimed in claim 1 is characterized in that: this projection is the organic material of insulation.
5. liquid crystal indicator as claimed in claim 1 is characterized in that: this second substrate comprises a common electrode layer, and this common electrode layer is arranged on the surface of this second substrate near this liquid crystal layer.
6. liquid crystal indicator as claimed in claim 5 is characterized in that: the distance between this reflection electrode layer and this common electrode layer is half of the distance between this common electrode layer and this through electrode layer.
7. liquid crystal indicator as claimed in claim 1 is characterized in that: this passivation layer is to be made by inorganic material such as monox or silicon nitrides.
8. liquid crystal indicator as claimed in claim 1 is characterized in that: this second substrate also comprises a substrate, and it is arranged on this second substrate away from this first substrate, one side.
9. liquid crystal indicator as claimed in claim 1 is characterized in that: this first substrate also comprises another substrate, and it is arranged on this first substrate away from this second substrate, one side.
10. liquid crystal indicator as claimed in claim 9 is characterized in that: this first substrate also comprises an insulation course, and it is arranged between this data line and this substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101579002A CN100543564C (en) | 2006-12-22 | 2006-12-22 | Liquid crystal indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101579002A CN100543564C (en) | 2006-12-22 | 2006-12-22 | Liquid crystal indicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101206358A true CN101206358A (en) | 2008-06-25 |
| CN100543564C CN100543564C (en) | 2009-09-23 |
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ID=39566677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101579002A Expired - Fee Related CN100543564C (en) | 2006-12-22 | 2006-12-22 | Liquid crystal indicator |
Country Status (1)
| Country | Link |
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| CN (1) | CN100543564C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824865A (en) * | 2014-02-14 | 2014-05-28 | 京东方科技集团股份有限公司 | Array substrate, preparation method thereof and display device |
| CN104483786A (en) * | 2014-12-30 | 2015-04-01 | 深圳市华星光电技术有限公司 | Liquid crystal display (LCD) panel and LCD device |
| WO2016015383A1 (en) * | 2014-07-28 | 2016-02-04 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method, and display apparatus |
| KR20160029487A (en) * | 2014-09-05 | 2016-03-15 | 엘지디스플레이 주식회사 | Thin film transistor substrate and method of fabricating the same |
| CN106773416A (en) * | 2016-11-28 | 2017-05-31 | 友达光电股份有限公司 | Pixel structure and display device with same |
-
2006
- 2006-12-22 CN CNB2006101579002A patent/CN100543564C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824865A (en) * | 2014-02-14 | 2014-05-28 | 京东方科技集团股份有限公司 | Array substrate, preparation method thereof and display device |
| CN103824865B (en) * | 2014-02-14 | 2017-01-25 | 京东方科技集团股份有限公司 | Array substrate, preparation method thereof and display device |
| WO2016015383A1 (en) * | 2014-07-28 | 2016-02-04 | 京东方科技集团股份有限公司 | Array substrate, manufacturing method, and display apparatus |
| US10180610B2 (en) | 2014-07-28 | 2019-01-15 | Boe Technology Group Co., Ltd. | Thin film transistor array substrate and manufacturing method thereof, and display device |
| KR20160029487A (en) * | 2014-09-05 | 2016-03-15 | 엘지디스플레이 주식회사 | Thin film transistor substrate and method of fabricating the same |
| CN105405851A (en) * | 2014-09-05 | 2016-03-16 | 乐金显示有限公司 | Thin Film Transistor Substrate And Method Of Fabricating The Same |
| CN105405851B (en) * | 2014-09-05 | 2019-02-05 | 乐金显示有限公司 | Thin film transistor substrate and manufacturing method thereof |
| KR102241442B1 (en) | 2014-09-05 | 2021-04-16 | 엘지디스플레이 주식회사 | Thin film transistor substrate and method of fabricating the same |
| CN104483786A (en) * | 2014-12-30 | 2015-04-01 | 深圳市华星光电技术有限公司 | Liquid crystal display (LCD) panel and LCD device |
| CN104483786B (en) * | 2014-12-30 | 2017-04-19 | 深圳市华星光电技术有限公司 | Liquid crystal display (LCD) panel and LCD device |
| CN106773416A (en) * | 2016-11-28 | 2017-05-31 | 友达光电股份有限公司 | Pixel structure and display device with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100543564C (en) | 2009-09-23 |
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