CN205248273U - A array substrate for LCD - Google Patents
A array substrate for LCD Download PDFInfo
- Publication number
- CN205248273U CN205248273U CN201521095369.1U CN201521095369U CN205248273U CN 205248273 U CN205248273 U CN 205248273U CN 201521095369 U CN201521095369 U CN 201521095369U CN 205248273 U CN205248273 U CN 205248273U
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- contact hole
- array base
- base palte
- drain electrode
- electrode
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Abstract
The utility model provides an array substrate for LCD. Array substrate includes: the substrate base plate, a plurality of thin film transistor switches, the thin film transistor switch includes the source electrode, the grid, the drain electrode sets up on the substrate base plate, the organic insulation membrane covers the thin film transistor switch, includes the first contact hole that exposes the drain electrode, has the extension groove on the contact hole, NULL forms epimembranally at organic insulation, the passive film forms on NULL to it exposes the drain electrode to have the second contact hole to switch on through first contact hole, the pixel electrode, the drain electrode contact that sets up on the passive film and expose with the second contact hole. The utility model discloses a set up the extension groove and does not also change under the prerequisite of dot structure not changing first contact hole pore size, improve the extended area of first contact hole greatly, be favorable to follow -up technology in oriented membrane spread in the contact hole to improve the bad of display device color development inequality.
Description
Technical field
The utility model relates to a kind of array base palte for liquid crystal display and manufacture method thereof.
Background technology
Conventionally, liquid crystal display utilizes the optical anisotropy of liquid crystal and polarization characteristic to realize Presentation Function.Because there is directionality in the orientation of liquid crystal molecule, can control liquid crystal and divide by electric field being applied to liquid crystalThe differently-oriented directivity of son. Therefore, in the time adjusting the differently-oriented directivity of liquid crystal molecule by electric field, liquid crystal moleculeOrientation can change, and then due to the optical anisotropy of liquid crystal, light is quilt on the molecular orientation direction of liquid crystalRefraction, thereby displays image information.
Current, liquid crystal display is due to outstanding resolution ratio and video fulfillment capability and quite concerned. DistortionNematic LCD comprises color membrane substrates, array base palte and is filled in color membrane substrates and array base palteBetween liquid crystal, wherein on color membrane substrates, be formed with public electrode, on array base palte, be formed with pixelElectrode. In such LCD, public electrode drives by the vertical electric field applying with pixel electrodeHydrodynamic crystalline substance, thus outstanding light transmittance, aperture opening ratio etc. is provided.
But Twisted Nematic LCD drives the shortcoming of liquid crystal to be by the electric field vertically applyingViewing angle characteristic is not good. Therefore,, in order to overcome this shortcoming, proposed to have outstanding viewing angle characteristicField pattern liquid crystal display in face. In face, in field pattern liquid crystal display, thin film transistor (TFT) is formed on substrate-basedOn plate and by organic insulating film, insulate, then between public electrode and pixel electrode, form passivating film withJust between public electrode and pixel electrode, apply vertical electric field or horizontal component of electric field, control afterwards liquid crystal static stateThe whole face of alignment films of arranging covers on the underlay substrate that forms pixel electrode, and wherein pixel electrode is by havingThe contact hole that machine dielectric film arranges is electrically connected with thin film transistor (TFT). But, by thin film transistor (TFT) and pixel electricityThe aperture of the contact hole that the utmost point connects is limited, and therefore alignment films possibly cannot spread in contact hole.
Fig. 1 is the profile of existing array base palte. With reference to Fig. 1, organic insulating film 10 is arranged on film crystalline substanceIn the drain electrode 1072 of body pipe. Organic insulating film 10 has the contact hole 101 that exposes drain electrode 1072. PassivationFilm 15 is arranged on organic insulating film 10, and pixel electrode 20 is by contact hole 101 and drain electrode 1072Connect.
Useful relief printing plate transfer printing orientation liquid forms alignment films 30. But, due to the diffusion of orientation liquidWith the limited aperture of contact hole 101, the orientation liquid of relief printing plate transfer printing sometimes cannot spread in contact hole 101,But be deposited in around contact hole 101. In the time that alignment films 30 does not spread in contact hole 101, orientationFilm 30 produces stacking around contact hole 101. This kind of defective workmanship can be in the time that follow-up liquid crystal display be lightedProduce the bad of colour developing inequality.
Utility model content
The utility model provides a kind of array base palte for liquid crystal display, and described array base palte is by establishingPut the probability that there is the contact hole of extended slot and greatly improve alignment films and flow to contact hole, can solve relevant gettingDo not sprawl the problem into contact hole to film.
Described array base palte comprises:
Underlay substrate;
Multiple thin film transistor switch, described multiple thin film transistor switch are formed on described underlay substrate,Each thin film transistor switch comprises grid, source electrode and drain electrode;
Organic insulating film, described organic insulating film is arranged on described thin multiple film transistor switches, described inOrganic insulating film comprises the first contact hole that exposes described drain electrode, and wherein said the first contact hole has nauropemeterFace;
Public electrode, described public electrode is arranged on described organic insulating film;
Passivating film, described passivating film is arranged on described public electrode, and described passivating film comprises the second contactHole, described the second contact holes exposing is by the drain electrode of described the first contact holes exposing; And
Pixel electrode, described pixel electrode is arranged on described passivating film, and described pixel electrode and instituteState drain electrode contact;
Wherein said organic insulating film have be formed on described the first contact hole inclined surface away from through holeThe extended slot at center.
Accordingly, the utility model also provides a kind of liquid crystal display, described liquid crystal display comprise asThe array base palte of the above.
Compared with prior art, the array base palte that the utility model provides, by using half-tone mask plateIn organic insulation rete, directly form the contact hole with extended slot, do not increase additional technique, effectively changeBe apt to the contact hole situation of sprawling of alignment films around on organic insulating film, and then improve the colour developing of liquid crystal displayUneven problem.
Brief description of the drawings
Fig. 1 is the profile of existing array base palte;
The array base palte plane that Fig. 2 provides for embodiment of the present utility model;
Fig. 3 is the orthographic projection shape of contact hole of the present utility model on underlay substrate;
The profile that Fig. 4 gets along LL ' line in Fig. 2 for array base palte;
Fig. 5 is the preferred array base palte plane of the utility model;
The profile that Fig. 6 is the display floater got along CC ' line in Fig. 5;
Fig. 7 is that alignment films flows to through hole schematic diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments to the array base palte the utility model proposes and liquid crystal displayBe described in further detail. According to following description, advantage of the present utility model and feature will be clearer.It should be noted that, accompanying drawing all adopts the form of simplifying very much and all uses non-ratio accurately, only in order to sideJust, the object of aid illustration the utility model embodiment lucidly.
Fig. 2 is the array base palte plane that embodiment of the present utility model provides, and Fig. 4 has been orientationThe part sectioned view of getting along LL ' line in Fig. 2 after film printing process.
With reference to Fig. 2, Fig. 4 is provided with many along one on the underlay substrate 1 that comprises multiple sub-pixel PGate line 103 and many data wires 107 that intersect with gate line 103 that individual direction is extended. In Fig. 2Shown sub-pixel P by gate line 103 and data wire 107 intersect limit, wherein gate line 103 withThe overlapping part of data wire 107 is used as grid 1031.
With reference to Fig. 4, comprise and be arranged on lining according to the array base palte for liquid crystal display of the present utility modelLight shield layer 21 on substrate 1, is arranged on the buffer protection layer 22 on light shield layer 21, buffer protection layerThe polysilicon layer 3 arranging on 22, and the gate insulator 4 of isolated grid 1031 and polysilicon layer 3,Wherein grid 1031 is arranged on gate insulator 4, also comprises that the interlayer being arranged on grid 1031 is exhaustedEdge layer 8, wherein source electrode 1071 passes through respectively interlayer insulating film 8 and gate insulator 4 with drain electrode 1072On contact hole be connected with polysilicon layer 3. Although source electrode 1071 in the utility model accompanying drawing, grid 1031Like this with drain electrode 1072 layouts, but the utility model is not limited to this.
Organic insulating film 10 is arranged in source electrode 1071 and drain electrode 1072, for to organic insulating film 10The element of below is protected and insulate. Organic insulating film 10 has relatively large thick in array base palteDegree, and on organic insulating film 10, form the first contact hole 101 that exposes drain electrode 1072, because theOne contact hole 101 is darker, thus for the ease of alignment films 30 sprawling it on the first contact hole 101Be set to have the little inclined surface of the large under shed of upper shed. Wherein the first contact hole 101 is at underlay substrateOrthographic projection figure on 1 is any one in circle, ellipse, polygon, or three kinds of shapesAny combination, the present embodiment take the first contact hole 101 as example explanation as circle. Pixel electrode 20 and drain electrode1072 contact with each other by the first contact hole 101.
Public electrode 19 is arranged on organic insulating film 10, by the 3rd contact hole 191 and organic insulationDrain electrode 1072 insulation that film 10 exposes arrange, for generation of common electric voltage.
Passivating film 15 is arranged on public electrode 19. Passivating film 15 makes public electrode 19 and pixel electrode20 insulation, and passivating film 15 has the second contact hole 151 that exposes drain electrode 1072. New in this practicalityIn the embodiment of type, the second contact hole 151 that passivating film 15 forms is arranged on the first contact hole 101In, the drain electrode 1072 that the second contact hole 151 exposes for exposing the first contact hole 101. Wherein be formed onThe second contact hole 151 in passivating film 15 also can with the first contact hole being formed in organic insulating film 10101 partly overlapping settings.
Pixel electrode 20 is arranged on passivating film 15, and contacts with second by the first contact hole 101Hole 151 contacts with drain electrode 1072. Pixel electrode 20 is set to strip electrode, and pixel electrode 20Be set to insulate corresponding with public electrode 19 by passivating film 15. Therefore, in the time driving, can be at pictureBetween element electrode 20 and public electrode 19, form vertical electric field and horizontal component of electric field.
The array base palte that the utility model provides also comprises extended slot, and extended slot 1011 is arranged on the first contactOn the inclined surface in hole 101, and extend to the direction away from the first contact hole 101 centers. For the ease ofAlignment films sprawling on the first contact hole 101, extended slot 1011 is set to from away from the first contact holeOne end of 101 has multistage to increase progressively groove depth or even variation groove depth to the one end near the first contact hole 101,But the groove depth D2 of extended slot 1011 maximums is less than the depth D 1 of the first contact hole 101. In this practicalityIn novel embodiment, extended slot 1011 can be same by intermediate tone mask version with the first contact hole 101In time, forms.
The orthographic projection figure of extended slot 1011 on underlay substrate can be the figure of rectilinear(-al) as shown in Figure 3Any one in the figure of figure, straight line and the curve composition of shape, curve composition, or three kinds of figuresAny combination, the present embodiment is with being projected as triangle and having evenly on contact hole 101 underlay substratesThe extended slot 1011 that changes groove depth is example explanation.
With reference to Fig. 3, extended slot 1011 can be in the situation that not increasing by the first contact hole 101 pore sizeIncrease the extended area of the first contact hole 101. The upper shed of the first contact hole 101 is limited to picture element densityCan not design too large, under shed to fully expose drain electrode 1072 can not design too little, therefore this case by arrangeExtended slot 1011 does not change under the prerequisite of dot structure not changing the first contact hole 101 pore sizes yet,Greatly improve the extended area of the first contact hole 101, therefore, form in operation after a while at array base palteThe alignment films 30 of stage transfer printing more easily spreads in the first contact hole 101.
In embodiment of the present utility model, the quantity of extended slot 1011 can arrange 1 or multiple,Extend to different directions multiple are preferably set.
Display panels is by array base palte, with the color membrane substrates of array base palte subtend setting be clipped in whereinLiquid crystal form. Fig. 5 is the preferred array base palte plane of the utility model, and Fig. 6 is along CC ' in Fig. 5The profile of the display panels that line is got, in Fig. 6, color membrane substrates 80 comprises underlay substrate 2, color blockingLayer 5 and be arranged on the supporter 7 on color blocking layer 5, the structure of array base palte 60 repeats no more. As Fig. 5,Shown in Fig. 6, dotted portion S1 in Fig. 5, corresponding to adjacent two the first contact holes 101 in Fig. 6 itBetween part, be set to the district S1 that stands of supporter 7, for not affecting the above support 7 district S1 that standsFlatness, therefore preferably extended slot 1011 is arranged in the direction of extending along data wire 107, as figureShown in 5.
As shown in Figure 7, as long as alignment films 30 enters in extended slot 1011 regions, because gravity is doneWill be towed in the first contact hole 101 and the second contact hole 151 by alignment films 30.
As mentioned above, according to the array base for liquid crystal display of the utility model illustrative embodimentsPlate, by form extended slot on the inclined surface of organic insulating film, prevents alignment films in the time of transfer printing alignment filmsDo not spread into pixel electrode and drain in the contact hole contacting.
Array base palte of the present utility model can be used for liquid crystal indicator, and can be used for production super-resolutionThe display unit of rate.
The utility model display unit can be: liquid crystal panel, LCD TV, liquid crystal display, numberAny product or parts with Presentation Function such as photo frame, mobile phone, panel computer.
Above detailed description of the invention is only for the utility model is described, but not to restriction of the present utility model.Although the utility model is had been described in detail with reference to embodiment, those of ordinary skill in the artShould be appreciated that the technical solution of the utility model is carried out to various combinations, revises or be equal to replacement, allDo not depart from principle of the present utility model and spirit, it all should be encompassed in the protection of the utility model claimWithin scope.
Claims (8)
1. for an array base palte for liquid crystal display, it is characterized in that, comprising:
Underlay substrate;
Multiple thin film transistor switch, described multiple thin film transistor switch are formed on described underlay substrate, and each thin film transistor switch comprises grid, source electrode and drain electrode;
Organic insulating film, described organic insulating film is arranged in described multiple thin film transistor switch, and described organic insulating film comprises the first contact hole that exposes described drain electrode, and wherein said the first contact hole has inclined surface;
Public electrode, described public electrode is arranged on described organic insulating film;
Passivating film, described passivating film is arranged on described public electrode, and described passivating film comprises the second contact hole, and described the second contact holes exposing is by the drain electrode of described the first contact holes exposing; And
Pixel electrode, described pixel electrode is arranged on described passivating film, and described pixel electrode contacts with described drain electrode;
Described organic insulating film has the extended slot away from through hole center being formed on described the first contact hole inclined surface.
2. array base palte as claimed in claim 1, is characterized in that, the described extended slot being formed on described organic insulating film has a groove depth at least.
3. array base palte as claimed in claim 1, is characterized in that, the maximum groove depth of described extended slot is less than the degree of depth of described the first contact hole.
4. array base palte as claimed in claim 1, is characterized in that, the orthographic projection figure of described the first contact hole on described underlay substrate is any one in circle, ellipse, polygon, or any combination of three kinds of shapes.
5. array base palte as claimed in claim 1, is characterized in that, the described extended slot quantity being formed on described the first contact hole is more than or equal to 1.
6. array base palte as claimed in claim 1, it is characterized in that, the orthographic projection figure of described extended slot on described underlay substrate can be the one in the figure of figure, straight line and curve composition of figure, the curve composition of rectilinear(-al), or any combination of three kinds of figures.
7. array base palte as claimed in claim 1, is characterized in that, described array base palte also comprises alignment films, and described alignment films is formed on described pixel electrode.
8. a liquid crystal display, is characterized in that, comprises the array base palte described in claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521095369.1U CN205248273U (en) | 2015-12-24 | 2015-12-24 | A array substrate for LCD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521095369.1U CN205248273U (en) | 2015-12-24 | 2015-12-24 | A array substrate for LCD |
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| Publication Number | Publication Date |
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| CN205248273U true CN205248273U (en) | 2016-05-18 |
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| CN201521095369.1U Active CN205248273U (en) | 2015-12-24 | 2015-12-24 | A array substrate for LCD |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106154669A (en) * | 2016-09-14 | 2016-11-23 | 厦门天马微电子有限公司 | Array base palte and preparation method thereof, liquid crystal indicator |
| CN106444187A (en) * | 2016-08-22 | 2017-02-22 | 京东方科技集团股份有限公司 | Array substrate and display device |
| CN106950769A (en) * | 2017-03-20 | 2017-07-14 | 深圳市华星光电技术有限公司 | Array base palte, display device |
| CN107479232A (en) * | 2017-08-16 | 2017-12-15 | 南京中电熊猫液晶显示科技有限公司 | A kind of array base palte and its manufacture method |
| JP2019174805A (en) * | 2018-03-29 | 2019-10-10 | シャープ株式会社 | Liquid crystal display device and method of producing liquid crystal display device |
| CN110376778A (en) * | 2018-04-13 | 2019-10-25 | 夏普株式会社 | The manufacturing method of display device and display device |
| WO2021082049A1 (en) * | 2019-10-30 | 2021-05-06 | 深圳市华星光电半导体显示技术有限公司 | Panel and manufacturing method therefor |
| CN113156714A (en) * | 2021-04-28 | 2021-07-23 | Tcl华星光电技术有限公司 | Array substrate and liquid crystal display panel |
| US20220310670A1 (en) * | 2020-09-29 | 2022-09-29 | Hefei Xinsheng Optoelecatronics Technology Co., Ltd | Array substrate and method of manufacturing the same, and display panel |
| US11973087B2 (en) * | 2020-09-29 | 2024-04-30 | Hefei Xinsheng Optoelectronics Technology Co., Ltd. | Array substrate and method of manufacturing the same, and display panel |
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2015
- 2015-12-24 CN CN201521095369.1U patent/CN205248273U/en active Active
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| US10495933B2 (en) * | 2016-08-22 | 2019-12-03 | Boe Technology Group Co., Ltd. | Array substrate and display device |
| CN106444187A (en) * | 2016-08-22 | 2017-02-22 | 京东方科技集团股份有限公司 | Array substrate and display device |
| WO2018036299A1 (en) * | 2016-08-22 | 2018-03-01 | 京东方科技集团股份有限公司 | Array substrate and display device |
| US20190086748A1 (en) * | 2016-08-22 | 2019-03-21 | Boe Technology Group Co., Ltd. | Array substrate and display device |
| CN106154669A (en) * | 2016-09-14 | 2016-11-23 | 厦门天马微电子有限公司 | Array base palte and preparation method thereof, liquid crystal indicator |
| CN106950769A (en) * | 2017-03-20 | 2017-07-14 | 深圳市华星光电技术有限公司 | Array base palte, display device |
| WO2018170957A1 (en) * | 2017-03-20 | 2018-09-27 | 深圳市华星光电技术有限公司 | Array substrate and display apparatus |
| CN106950769B (en) * | 2017-03-20 | 2020-05-05 | 深圳市华星光电技术有限公司 | Array substrate and display device |
| CN107479232A (en) * | 2017-08-16 | 2017-12-15 | 南京中电熊猫液晶显示科技有限公司 | A kind of array base palte and its manufacture method |
| CN110320718A (en) * | 2018-03-29 | 2019-10-11 | 夏普株式会社 | The manufacturing method of liquid crystal display device and liquid crystal display device |
| JP2019174805A (en) * | 2018-03-29 | 2019-10-10 | シャープ株式会社 | Liquid crystal display device and method of producing liquid crystal display device |
| US10642117B2 (en) | 2018-03-29 | 2020-05-05 | Sharp Kabushiki Kaisha | Liquid crystal display device and method of producing liquid crystal display device |
| CN110376778A (en) * | 2018-04-13 | 2019-10-25 | 夏普株式会社 | The manufacturing method of display device and display device |
| WO2021082049A1 (en) * | 2019-10-30 | 2021-05-06 | 深圳市华星光电半导体显示技术有限公司 | Panel and manufacturing method therefor |
| US20220310670A1 (en) * | 2020-09-29 | 2022-09-29 | Hefei Xinsheng Optoelecatronics Technology Co., Ltd | Array substrate and method of manufacturing the same, and display panel |
| US11973087B2 (en) * | 2020-09-29 | 2024-04-30 | Hefei Xinsheng Optoelectronics Technology Co., Ltd. | Array substrate and method of manufacturing the same, and display panel |
| CN113156714A (en) * | 2021-04-28 | 2021-07-23 | Tcl华星光电技术有限公司 | Array substrate and liquid crystal display panel |
| CN113156714B (en) * | 2021-04-28 | 2023-12-08 | Tcl华星光电技术有限公司 | Array substrate and liquid crystal display panel |
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