CN107664880B - A kind of liquid crystal display device - Google Patents
A kind of liquid crystal display device Download PDFInfo
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- CN107664880B CN107664880B CN201710850682.9A CN201710850682A CN107664880B CN 107664880 B CN107664880 B CN 107664880B CN 201710850682 A CN201710850682 A CN 201710850682A CN 107664880 B CN107664880 B CN 107664880B
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- electrode
- liquid crystal
- crystal display
- display device
- array substrate
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134318—Electrodes characterised by their geometrical arrangement having a patterned common electrode
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Liquid Crystal (AREA)
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 layers 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 layer side and there is second electrode narrow slit structure, second electrode also to have segment difference structure.The present invention reduces fringing field effect when display by being fabricated to segment difference structure by intermediate tone mask with the second electrode of narrow slit structure in the array substrate by liquid crystal display device, with this, improves the transmitance of liquid crystal display device.
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 black matrix" 80, color blocking layer 90 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 layer of array substrate and color membrane substrates, wherein array substrate are equipped with first electrode and second electrode and positioned at first
Insulating layer between electrode and second electrode, second electrode is disposed in proximity to liquid crystal layer side and second electrode has slit knot
Structure, it is characterised in that：Second electrode also has segment difference structure.
Wherein, the segment difference structure is in convex shape, i.e. the central area of second electrode is higher than the both sides of the edge of second electrode
Region.
Wherein, the segment difference structure is step-like, i.e., the thickness of second electrode is from one end of second electrode to second electrode
The other end be in incremental trend.
Wherein, the segment difference structure is that level-one is step-like or two-stage step shape structure.
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 segment difference structure is formed by intermediate tone mask legal system.
Wherein, there is insulating layer between first electrode and second electrode.
Wherein, the first electrode and second electrode are indium tin oxide ITO.
The present invention passes through halftoning by the second electrode with narrow slit structure in the array substrate by liquid crystal display device
Mask fabrication reduces fringing field effect when display at segment difference structure, 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 one pixel unit schematic diagram of LCD device array substrates 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 structural schematic diagram of liquid crystal display device embodiment of the present invention；
Fig. 7 is three 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 layer of liquid crystal molecule 30 between array substrate 200 and color membrane substrates 300.Fig. 3 is liquid crystal display device battle array of the present invention
One pixel unit schematic diagram of row substrate, Fig. 4 are the sectional view along AA ' in Fig. 3.Wherein, color membrane substrates 300 are in glass substrate 20
On successively be 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.
It is in convex shape that second electrode 51, which also has segment difference structure, segment difference structure, i.e., the central area of second electrode is higher than the
The both sides of the edge region of two electrodes.First electrode 40 is public electrode, and second electrode 51 is pixel electrode, can also be the first electricity
Pole 40 is pixel electrode, and second electrode 51 is public electrode.First electrode 40 and second electrode 51 are indium tin oxide
ITO。
Convex shape segment difference structure 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, second electrode edge liquid crystal display device it is saturating
It is 0.140738 to cross rate, uses the transmitance of the liquid crystal display device of one structure of embodiment for 0.142492, it is seen then that by by battle array
The second electrode with narrow slit structure is fabricated to segment difference structure in row substrate, can reduce fringing field effect when display, improve
The transmitance of liquid crystal display device.
Fig. 6 is two structural schematic diagram of liquid crystal display device embodiment of the present invention, and Fig. 7 is implemented for liquid crystal display device of the present invention
Three structural schematic diagram of example, embodiment two, embodiment three and embodiment one difference lies in：It can also be by second in array substrate
The segment difference structure fabrication stepped of electrode 52,53, i.e., the thickness of second electrode is from one end of second electrode to second electrode
The other end is in incremental trend, and the segment difference structure is the step-like either two-stage step shape structure of level-one or multi-stage stairs shape knot
Structure.Step-like segment difference structure can also be made by intermediate tone mask method (halftone) and be formed.
The present invention passes through halftoning by the second electrode with narrow slit structure in the array substrate by liquid crystal display device
Mask fabrication reduces fringing field effect when display at segment difference structure, with this, improves the transmitance of liquid crystal display device.
Claims (7)
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 layer of ilm substrate, wherein array substrate are equipped with first electrode and second electrode and positioned at first electrodes and the second electricity
Insulating layer between pole, second electrode is disposed in proximity to liquid crystal layer side and second electrode has narrow slit structure, it is characterised in that：
It is step-like that second electrode, which also has segment difference structure, the segment difference structure, i.e. the thickness of second electrode is from one end of second electrode
The other end to second electrode is in incremental trend；There is layer of transparent conductive material at the back side of the color membrane substrates.
2. liquid crystal display device according to claim 1, it is characterised in that：The segment difference structure be level-one it is step-like or
Two-stage step shape structure.
3. liquid crystal display device according to claim 2, it is characterised in that：The first electrode be public electrode, second
Electrode is pixel electrode.
4. liquid crystal display device according to claim 2, it is characterised in that：The first electrode be pixel electrode, second
Electrode is public electrode.
5. liquid crystal display device according to claim 2, it is characterised in that：The segment difference structure passes through intermediate tone mask method
It makes and is formed.
6. liquid crystal display device according to claim 1, it is characterised in that：Have between first electrode and second electrode exhausted
Edge layer.
7. 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 |
|---|---|---|---|
| CN201710850682.9A CN107664880B (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 |
|---|---|---|---|
| CN201710850682.9A CN107664880B (en) | 2017-09-20 | 2017-09-20 | A kind of liquid crystal display device |
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| Publication Number | Publication Date |
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| CN107664880A CN107664880A (en) | 2018-02-06 |
| CN107664880B true CN107664880B (en) | 2018-09-14 |
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| CN201710850682.9A Active CN107664880B (en) | 2017-09-20 | 2017-09-20 | A kind of liquid crystal display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407422B (en) * | 2018-11-14 | 2020-10-16 | 惠科股份有限公司 | Display panel, manufacturing method and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995707A (en) * | 2010-08-30 | 2011-03-30 | 昆山龙腾光电有限公司 | Fringe field switching (FFS) liquid crystal display (LCD) panel, manufacturing method thereof and LCD |
| CN102031121A (en) * | 2009-09-29 | 2011-04-27 | 奇美电子股份有限公司 | Liquid crystals composition and liquid crystal display |
| CN103984161A (en) * | 2013-12-30 | 2014-08-13 | 厦门天马微电子有限公司 | Array substrate, manufacturing method thereof, liquid crystal display panel and liquid crystal display device |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102045504B1 (en) * | 2013-03-27 | 2019-11-18 | 삼성디스플레이 주식회사 | Liquid crystal dislplay and method of manufacturing the same |
-
2017
- 2017-09-20 CN CN201710850682.9A patent/CN107664880B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031121A (en) * | 2009-09-29 | 2011-04-27 | 奇美电子股份有限公司 | Liquid crystals composition and liquid crystal display |
| CN101995707A (en) * | 2010-08-30 | 2011-03-30 | 昆山龙腾光电有限公司 | Fringe field switching (FFS) liquid crystal display (LCD) panel, manufacturing method thereof and LCD |
| CN103984161A (en) * | 2013-12-30 | 2014-08-13 | 厦门天马微电子有限公司 | Array substrate, manufacturing method thereof, liquid crystal display panel and liquid crystal display device |
| 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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| CN107664880A (en) | 2018-02-06 |
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Effective date of registration: 20200826 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 Co-patentee before: NANJING CEC PANDA FPD TECHNOLOGY Co.,Ltd. Patentee before: NANJING CEC PANDA LCD TECHNOLOGY Co.,Ltd. Co-patentee before: Nanjing East China Electronic Information Technology Co.,Ltd. |