CN107544183B - A kind of liquid crystal display device - Google Patents
A kind of liquid crystal display device Download PDFInfo
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- CN107544183B CN107544183B CN201710850463.0A CN201710850463A CN107544183B CN 107544183 B CN107544183 B CN 107544183B CN 201710850463 A CN201710850463 A CN 201710850463A CN 107544183 B CN107544183 B CN 107544183B
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Abstract
The present invention provides a kind of liquid crystal display device, including the array substrate being oppositely arranged and color membrane substrates and it is clipped in the liquid crystal of array substrate and color membrane substrates, wherein array substrate is equipped with first electrode and second electrode and the insulating layer between first electrode and second electrode, second electrode is disposed in proximity to liquid crystal side and second electrode has narrow slit structure, the insulating layer is equipped at least one groove, and the second electrode includes at least one second part being located in groove and the first part on insulating layer.The present invention makes second electrode first part and second part be formed with difference in height, reduces fringing field effect when display with this, improve the transmitance of liquid crystal display device by being equipped with groove on the insulating layer of array substrate.
Description
Technical field
The invention belongs to display field more particularly to a kind of liquid crystal display devices.
Background technology
Liquid crystal display device is a kind of current most popular panel display apparatus, wherein FFS (Fringe Field
Switching, fringe field switching technology) liquid crystal display device with its viewing visual angle it is wide and the features such as aperture opening ratio is high by vast
User's likes.
Fig. 1 is the structural schematic diagram of existing FFS liquid crystal display devices, and FFS liquid crystal display devices generally include to be oppositely arranged
Array substrate 200 and color membrane substrates 300, and the layer of liquid crystal molecule that is arranged between array substrate 200 and color membrane substrates 300
30.Wherein, array substrate 200 is generally provided with the first electrode 40 of whole face tiling in glass substrate 10 and has slit
(slit) second electrode 50 of structure has insulating layer 60 between first electrode 40 and second electrode 50.Color membrane substrates 300 are in glass
Glass substrate 20 is equipped with color blocking layer 90, black matrix" 80 and flatness layer 100.Generally for preventing display brightness caused by electrostatic
Uneven (mura) can also the back side of color membrane substrates 300 plate layer of transparent conductive material ITO (Indium Tin Oxide,
Indium tin oxide) 70 to play the role of shielding external electrical field, prevent electrostatic mura.Usual FFS liquid crystal display panels, when
When application voltage carries out driving to white state, with the increase of voltage, the electric field at second electrode edge causes liquid crystal herein to cross torsion
It is bent so that occurring dark line herein causes whole transmitance to reduce.Fig. 2 a- Fig. 2 c are the transmitance mould of different voltages lower panel each point
Quasi- figure, abscissa are the position put on panel, and ordinate is the transmitance of panel.From the point of view of simulation drawing in 3.5V voltages, the
The liquid crystal of two electrode edges first reaches transmitance highest state, after voltage to be driven continues to rise to 4.0V and 4.5V, with
Crossing for the liquid crystal of two electrode edges distorts, and transmitance herein is caused to decline.
Invention content
It is an object of the invention to pass through the second electrode with narrow slit structure in the array substrate by liquid crystal display device
By intermediate tone mask it is fabricated to segment difference structure, fringing field effect when display is reduced with this, improves liquid crystal display device
Transmitance.
The present invention provides a kind of liquid crystal display device, including the array substrate and color membrane substrates that are oppositely arranged and is clipped in
The liquid crystal of array substrate and color membrane substrates, wherein array substrate are equipped with first electrode and second electrode and positioned at the first electricity
Insulating layer between pole and second electrode, second electrode is disposed in proximity to liquid crystal side and second electrode has narrow slit structure, institute
It states insulating layer and is equipped at least one groove, the second electrode includes at least one second part being located in groove and is located at exhausted
First part in edge layer.
Wherein, height of the height of plane where first part higher than plane where second part.
Wherein, the second electrode is in convex shape, there are two the second part and the groove are all provided with, each second
Divide and be located in a groove, the first part is located between two second parts.
Wherein, the second electrode is step-like.
Wherein, the first electrode is public electrode, and second electrode is pixel electrode.
Wherein, the first electrode is pixel electrode, and second electrode is public electrode.
Wherein, the second electrode is formed by intermediate tone mask legal system.
Wherein, the insulating layer is organic insulator.
Wherein, the first electrode and second electrode are indium tin oxide ITO.
The present invention makes second electrode first part and second part shape by being equipped with groove on the insulating layer of array substrate
At there is difference in height, fringing field effect when display is reduced with this, improves the transmitance of liquid crystal display device.
Description of the drawings
Fig. 1 is the structural schematic diagram of existing FFS liquid crystal display devices；
Fig. 2 a- Fig. 2 c are the transmitance simulation drawing of different voltages lower panel each point；
Fig. 3 is liquid crystal display device embodiment array basal plate pixel unit schematic diagram of the present invention；
Fig. 4 is one structural schematic diagram of liquid crystal display device embodiment of the present invention；
Fig. 5 is the embodiment of the present invention one and traditional liquid crystal display device transmitance simulation drawing；
Fig. 6 is two array substrate pixel unit schematic diagram of liquid crystal display device embodiment of the present invention；
Fig. 7 is two structural schematic diagram of liquid crystal display device embodiment of the present invention.
Specific implementation mode
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate
It the present invention rather than limits the scope of the invention, after having read the present invention, those skilled in the art are to of the invention each
The modification of kind equivalent form falls within the application range as defined in the appended claims.
The present invention proposes a kind of FFS liquid crystal display devices, including the array substrate 200 and color membrane substrates 300 being oppositely arranged,
And it is clipped in the liquid crystal molecule 30 between array substrate 200 and color membrane substrates 300.Fig. 3 is implemented for liquid crystal display device of the present invention
Example array basal plate pixel unit schematic diagram, Fig. 4 are the sectional view along AA ' in Fig. 3.Wherein, color membrane substrates 300 are in glass lined
Bottom 20 is equipped with black matrix" 80, color blocking layer 90 and flatness layer 100, to prevent display brightness caused by electrostatic uneven (mura)
Layer of transparent conductive material ITO70 can also be plated at the back side of color membrane substrates 300.
Array substrate 200 includes the crisscross scan line and data line being located in glass substrate 10, by scan line and
Data line interlock the pixel region limited, positioned at the TFT switch of scan line and data line infall, the electricity of first electrode 40, second
Pole 51 and the insulating layer 60 between first electrode 40 and second electrode 51.
Wherein, first electrode 40 be whole face be laid in the glass substrate 10 of array substrate (according to the demand of actual design,
First electrode 40 also can be only arranged in pixel region), first electrode 40 can be located on data line according to design requirement, also may be used
To be located in scan line.
Second electrode 51 is close to 30 side of liquid crystal layer, and there is second electrode 51 narrow slit structure, second electrode 51 to be located at picture
In plain region.In the present embodiment, the fringe field of driving liquid crystal molecule 30 is generated between first electrode 40 and second electrode 51.
Groove there are two being set on insulating layer 60, second electrode 51 is including two second parts 512 and positioned at two second
The first part 511 between 512, each second part 512 is divided to be located in a groove, first part 511 is located at insulating layer 60
On.
Second electrode 51 is in convex shape, and the height of 511 place plane of first part is higher than 512 place plane of second part
Highly, i.e. the first part 511 of second electrode 51 is higher than the second part 512 positioned at 511 both sides of first part, forms a kind of section
Poor structure.First electrode 40 is public electrode, and second electrode 51 is pixel electrode, can also be that first electrode 40 is electric for pixel
Pole, second electrode 51 are public electrode.First electrode 40 and second electrode 51 are indium tin oxide ITO.
Convex shape second electrode 51 is made by intermediate tone mask method (halftone) and is formed.Fig. 5 is the embodiment of the present invention
One with traditional liquid crystal display device transmitance simulation drawing, when voltage be 4.5V when, 51 edge liquid crystal display device of second electrode
Transmitance be 0.140738, use the transmitance of the liquid crystal display device of one structure of embodiment for 0.142997, it is seen then that pass through
Second electrode with narrow slit structure in array substrate is fabricated to the different segment difference structure of height, edge when display can be reduced
Field-effect improves the transmitance of liquid crystal display device.
Fig. 6 is two array substrate pixel unit schematic diagram of liquid crystal display device embodiment of the present invention, and Fig. 7 is liquid crystal of the present invention
Two structural schematic diagram of display device embodiment, embodiment two and embodiment one difference lies in：The side of second electrode 52 it is exhausted
Edge layer 60 is equipped with groove, and second electrode 52 includes the first part 521 being located on insulating layer and second in groove
Divide 522,52 stepped of second electrode, the i.e. first part 521 of second electrode 52 are higher than second positioned at first part side
Part 522.Step-like second electrode can also be made by intermediate tone mask method (halftone) and be formed.
The present invention makes second electrode first part and second part shape by being equipped with groove on the insulating layer of array substrate
At there is difference in height, fringing field effect when display is reduced with this, improves the transmitance of liquid crystal display device.
Claims (8)
1. a kind of liquid crystal display device, including the array substrate and color membrane substrates that are oppositely arranged and be clipped in array substrate with it is color
The liquid crystal of ilm substrate, wherein array substrate are equipped with first electrode and second electrode and are located at first electrode and second electrode
Between insulating layer, second electrode, which is disposed in proximity to liquid crystal side and second electrode, has narrow slit structure, it is characterised in that：It is described
Insulating layer be equipped at least one groove, the second electrode include be located at groove at least one second part and positioned at insulation
First part on layer；At least one second part and first part are structure as a whole, the height of plane where first part
Height of the degree higher than plane where second part.
2. liquid crystal display device according to claim 1, it is characterised in that：The second electrode is in convex shape, and described the
There are two two parts and the groove are all provided with, each second part is located in groove, and the first part is located at two the
Between two parts.
3. liquid crystal display device according to claim 1, it is characterised in that：The second electrode is step-like.
4. according to any liquid crystal display devices of claim 2-3, it is characterised in that：The first electrode is common electrical
Pole, second electrode are pixel electrode.
5. according to any liquid crystal display devices of claim 2-3, it is characterised in that：The first electrode is pixel electricity
Pole, second electrode are public electrode.
6. according to any liquid crystal display devices of claim 2-3, it is characterised in that：The second electrode passes through halftoning
Mask method makes to be formed.
7. liquid crystal display device according to claim 1, it is characterised in that：The insulating layer is organic insulator.
8. liquid crystal display device according to claim 1, it is characterised in that：The first electrode and second electrode are indium
Tin oxide ITO.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710850463.0A CN107544183B (en) | 2017-09-20 | 2017-09-20 | A kind of liquid crystal display device |
| PCT/CN2018/073365 WO2019056678A1 (en) | 2017-09-20 | 2018-01-19 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710850463.0A CN107544183B (en) | 2017-09-20 | 2017-09-20 | A kind of liquid crystal display device |
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| CN107544183A CN107544183A (en) | 2018-01-05 |
| CN107544183B true CN107544183B (en) | 2018-10-30 |
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| WO2019056678A1 (en) * | 2017-09-20 | 2019-03-28 | 南京中电熊猫液晶显示科技有限公司 | Liquid crystal display device |
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| KR100620847B1 (en) * | 2001-06-05 | 2006-09-13 | 엘지.필립스 엘시디 주식회사 | Array Substrate of Liquid Crystal Display and Fabricating Method Thereof |
| CN101995709B (en) * | 2009-08-27 | 2012-10-03 | 北京京东方光电科技有限公司 | Fringing field switching (FFS) type thin film transistor liquid crystal display (TFT-LCD) array substrate and manufacturing method thereof |
| US8377331B2 (en) * | 2009-09-29 | 2013-02-19 | University Of Central Florida Research Foundation, Inc. | Liquid crystals composition and liquid crystal display with patterned electrodes |
| CN103984161B (en) * | 2013-12-30 | 2017-08-25 | 厦门天马微电子有限公司 | Array base palte and its manufacture method, liquid crystal display panel and liquid crystal display device |
| CN104122701A (en) * | 2014-07-28 | 2014-10-29 | 深圳市华星光电技术有限公司 | Liquid crystal display panel, manufacturing method thereof and array substrate |
| CN105824158A (en) * | 2016-05-30 | 2016-08-03 | 京东方科技集团股份有限公司 | Array substrate, display device and array substrate manufacturing method |
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Effective date of registration: 20200923 Address after: No.7 Tianyou Road, Qixia District, Nanjing City, Jiangsu Province Patentee after: NANJING CEC PANDA LCD TECHNOLOGY Co.,Ltd. Address before: Nanjing Crystal Valley Road in Qixia District of Nanjing City Tianyou 210033 Jiangsu province No. 7 Patentee before: NANJING CEC PANDA LCD TECHNOLOGY Co.,Ltd. Patentee before: NANJING CEC PANDA FPD TECHNOLOGY Co.,Ltd. Patentee before: Nanjing East China Electronic Information Technology Co.,Ltd. |