CN107272265A - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
- Publication number
- CN107272265A CN107272265A CN201710493585.9A CN201710493585A CN107272265A CN 107272265 A CN107272265 A CN 107272265A CN 201710493585 A CN201710493585 A CN 201710493585A CN 107272265 A CN107272265 A CN 107272265A
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- Prior art keywords
- liquid crystal
- black matrix
- display device
- farmland
- crystal display
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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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
-
- 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
- G02F1/134372—Electrodes characterised by their geometrical arrangement for fringe field switching [FFS] where the common electrode is not patterned
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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)
- Liquid Crystal (AREA)
- Geometry (AREA)
- Spectroscopy & Molecular Physics (AREA)
Abstract
The invention discloses a kind of liquid crystal display device, the device includes upper substrate, infrabasal plate and the liquid crystal molecule being clipped between upper and lower base plate, upper substrate and infrabasal plate are equipped with the multiple pixel regions being oppositely arranged, each pixel region of infrabasal plate is provided with public electrode and pixel electrode, and each pixel electrode includes multiple linearly slits；Upper substrate includes the first black matrix", second black matrix" vertical with the first black matrix" and the chromatograph between the first black matrix", and each chromatograph through the centre of each chromatograph and is divided into two sub- chromatographs by the second black matrix"；Pixel region by the second black matrix" be divided into above and below two and half farmlands, the alignment direction of liquid crystal molecule respectively in upper half of farmland and lower half of farmland be in symmetrical relation.Shape and orientation mode of the invention by changing electrode, so that the whole region electric field of electrode is more uniform, can improve dark line.
Description
Technical field
The invention belongs to technical field of liquid crystal display, more particularly to a kind of it can improve the liquid crystal display device of dark line.
Background technology
FFS (Fringe Field Switching) technology belongs to LCD wide viewing angle technology, and wide viewing angle technology is mainly
In order that the angle of visibility of panel is wider, it helps other characteristic performances such as image quality, brightness.Traditional FFS pixels are generally double
Domain structure, electrode has certain turning in middle and most two end portions, and orientation angle is along a direction, and orientation mode is friction
Orientation (rubbing) or light orientation.
As shown in figure 1, common FFS display devices include upper substrate and infrabasal plate, infrabasal plate is provided with public electrode and picture
Plain electrode, pixel electrode is dartlike weapon type, in the electrodes between have certain turning, positivity liquid crystal molecule (Liquid Crystal,
LC) it is located between upper substrate and infrabasal plate, liquid crystal alignment direction is parallel with the length direction of pixel electrode.As shown in Fig. 2
Common FFS display devices include upper substrate and infrabasal plate, and infrabasal plate is provided with public electrode and pixel electrode, and pixel electrode is winged
Boomerang type, in the electrodes between have certain turning, negative liquid crystal molecule (LC) is located between upper substrate and infrabasal plate, liquid crystal molecule distributing
It is vertical with the length direction of pixel electrode to direction.
The distribution mode of traditional FFS electrodes cause pixel along center section to electrode bearing of trend electric-field intensity strong, electrode
It is outside weaker to marginal portion electric field, therefore easily there is dark line.
The content of the invention
Goal of the invention：For problem above, present invention proposition is a kind of can to improve the liquid crystal display device of dark line, by changing
The shape and orientation mode of variable electrode make the electric field of pixel whole region more uniform, so as to improve dark line.
Technical scheme：To realize the purpose of the present invention, the technical solution adopted in the present invention is：A kind of liquid crystal display dress
Put, including upper substrate, infrabasal plate and the liquid crystal molecule that is arranged between upper and lower base plate, upper substrate and infrabasal plate are equipped with relative set
The multiple pixel regions put, each pixel region of infrabasal plate is provided with public electrode and pixel electrode, and is arranged on common electrical
Insulating barrier between pole and pixel electrode, each pixel electrode includes multiple slits, and each slit is linearly.Upper substrate includes
First black matrix", second black matrix" vertical with the first black matrix" and the chromatograph between the first black matrix",
Each chromatograph through the centre of each chromatograph and is divided into two sub- chromatographs by the second black matrix"；Second black matrix" correspondence is each
The centre of pixel region.Pixel region is divided into two farmlands, upper half of farmland and lower half of farmland, liquid crystal molecule point by the second black matrix"
Alignment direction not in upper half of farmland and lower half of farmland is in symmetrical relation.
When liquid crystal molecule is positivity liquid crystal molecule, the orientation angle of liquid crystal molecule respectively between upper half of farmland and lower half of farmland
Spend for 5-10 °, its angle is the angle between the bearing of trend of major axis and the slit bearing of trend of pixel electrode of liquid crystal molecule.
When liquid crystal molecule is negative liquid crystal molecule, the orientation angle of liquid crystal molecule respectively between upper half of farmland and lower half of farmland
Spend for 5-10 °, its angle is the angle between the bearing of trend of major axis and the bearing of trend of the second black matrix" of liquid crystal molecule.
Further, pixel electrode includes n slit, first side of the pixel region provided with close 1st slit and
Close to the second side of n-th of slit, the 1st the distance between slit and first side are equal to n-th of slit and second side
The distance between.The distance between adjacent slots are more than the 1st the distance between slit and first side.
Beneficial effect：Shape and orientation mode of the invention by changing electrode, so that the whole region electric field of electrode
It is more uniform, dark line can be improved.
Brief description of the drawings
Fig. 1 is that the pixel cell liquid crystal molecule of traditional FFS display devices is the structural representation of timing；
Fig. 2 is that the pixel cell liquid crystal molecule of traditional FFS display devices is structural representation when bearing；
Fig. 3 is that the pixel cell liquid crystal molecule of the FFS display devices of one embodiment of the present of invention shows for the structure of timing
It is intended to；
Fig. 4 be the pixel cell liquid crystal molecule of the FFS display devices of one embodiment of the present of invention for it is negative when structure show
It is intended to.
Embodiment
Technical scheme is further described with reference to the accompanying drawings and examples.
The liquid crystal display device of the present invention that dark line can be improved includes upper substrate and infrabasal plate, and is arranged on
Liquid crystal molecule (Liquid Crystal, LC) 3 between substrate and infrabasal plate, upper substrate and infrabasal plate are equipped with what is be oppositely arranged
Multiple pixel regions, each pixel region of infrabasal plate is provided with public electrode 1 and pixel electrode 2, and public electrode is plane-shape electrode.
Insulating barrier is set between public electrode and pixel electrode, insulating barrier be inorganic insulation layer, organic insulator or inorganic insulation layer and
The mix insulation layer of organic insulator.Each pixel electrode includes multiple slits, and each slit is linearly.
Upper substrate includes the first black matrix", second black matrix" vertical with the first black matrix" and black positioned at first
Each chromatograph through the centre of each chromatograph and is divided into two sub- chromatographs by the chromatograph between colour moment battle array, the second black matrix"；The
The centre of each pixel region of two black matrix"s correspondence.Pixel region is divided into two farmlands by the second black matrix", i.e., upper half of farmland
With lower half of farmland, the alignment direction of liquid crystal molecule respectively in upper half of farmland and lower half of farmland is in symmetrical relation, to be formed
Double domain structures, improve the uniformity of fringing field and middle cardioelectric field, so as to improve dark line.
Liquid crystal display device has multiple pixel cells, is one of liquid crystal display device of the present invention as shown in Figure 3
One of pixel cell of embodiment, including public electrode and pixel electrode, pixel electrode are strip, public electrode and pixel
Electrode is located on infrabasal plate.It is positivity liquid crystal molecule between upper and lower base plate.Increase black matrix" (Black on upper substrate
Matrix, BM) 4, the transmission for preventing light covers the orientation zone of intersection with light leakage, to improve contrast.Upper substrate is CF
(Color Filter) substrate, infrabasal plate is TFT (Thin Film Transistor) substrate.
The distance of the distance between strip pixel electrode and pixel electrode and pixel edge is adjusted, makes electric-field intensity one
Cause.Pixel electrode includes n slit, first side and close n-th slit of the pixel region provided with close 1st slit
Second side, the 1st the distance between slit and first side are equal to the distance between n-th of slit and second side, adjacent
The distance between slit is more than the 1st the distance between slit and first side.Orientation is carried out to upper half of farmland and causes orientation angle
Spend for θ 1, PI orientations carried out to lower half of farmland and cause orientation angle to be θ 2, orientation angle for the major axis of liquid crystal molecule extension side
Angle between the slit bearing of trend of pixel electrode；θ 1 and θ 2 are equal, and θ 1 and θ 2 scope are 5-10 °.
(one drop fill, ODF) technique under liquid crystal drop is carried out, ODF sticks polaroid, polaroid after finishing into box
Made by dichroic dye and other components for raw material.Then light orientation is carried out to polaroid, made partially with ultraviolet light (UV) irradiation
Dye molecule in mating plate is orientated according to the direction of Liquid Crystal Molecules Alignment, to produce polarizing function.
Liquid crystal display device has multiple pixel cells, is one of liquid crystal display device of the present invention as shown in Figure 4
One of pixel cell of embodiment, including public electrode and pixel electrode, pixel electrode are strip, public electrode and pixel
Electrode is located on infrabasal plate.It is negative liquid crystal molecule between upper and lower base plate.Increase black matrix" (Black on upper substrate
Matrix, BM) 4, the transmission for preventing light covers the orientation zone of intersection with light leakage, to improve contrast.Upper substrate is CF
(Color Filter) substrate, infrabasal plate is TFT (Thin Film Transistor) substrate.
The distance of the distance between strip pixel electrode and pixel electrode and pixel edge is adjusted, makes electric-field intensity one
Cause.Pixel electrode includes n slit, first side and close n-th slit of the pixel region provided with close 1st slit
Second side, the 1st the distance between slit and first side are equal to the distance between n-th of slit and second side, adjacent
The distance between slit is more than the 1st the distance between slit and first side.Orientation is carried out to upper half of farmland and causes orientation angle
Spend for θ 3, PI orientations carried out to lower half of farmland and cause orientation angle to be θ 4, orientation angle for the major axis of liquid crystal molecule extension side
To angle of the bearing of trend of the second black matrix" between；θ 3 and θ 4 are equal, and θ 3 and θ 4 scope are 5-10 °.
(one drop fill, ODF) technique under liquid crystal drop is carried out, ODF sticks polaroid, polaroid after finishing into box
Made by dichroic dye and other components for raw material.Then light orientation is carried out to polaroid, made partially with ultraviolet light (UV) irradiation
Dye molecule in mating plate is orientated according to the direction of Liquid Crystal Molecules Alignment, to produce polarizing function.
Claims (10)
1. a kind of liquid crystal display device, including upper substrate, infrabasal plate and the liquid crystal molecule that is arranged between upper and lower base plate, it is described on
Substrate and infrabasal plate are equipped with the multiple pixel regions being oppositely arranged, and each pixel region of the infrabasal plate is provided with public electrode
And pixel electrode, and the insulating barrier being arranged between public electrode and pixel electrode, it is characterised in that：Each pixel electrode bag
Multiple slits are included, each slit is linearly.
2. liquid crystal display device according to claim 1, it is characterised in that：Upper substrate includes the first black matrix", with the
The second vertical black matrix" of one black matrix" and the chromatograph between the first black matrix", second black matrix" are worn
Cross the centre of each chromatograph and each chromatograph is divided into two sub- chromatographs；The each pixel region of the second black matrix" correspondence
It is middle.
3. liquid crystal display device according to claim 2, it is characterised in that：The pixel region is by the second black square
Battle array is divided into two farmlands, upper half of farmland and lower half of farmland, the orientation of the liquid crystal molecule respectively in upper half of farmland and lower half of farmland
Direction is in symmetrical relation.
4. liquid crystal display device according to claim 3, it is characterised in that：The liquid crystal molecule is positivity liquid crystal molecule,
The orientation angle of liquid crystal molecule respectively between upper half of farmland and lower half of farmland is 5-10 °, and its angle is the major axis of liquid crystal molecule
Bearing of trend and pixel electrode slit bearing of trend between angle.
5. liquid crystal display device according to claim 3, it is characterised in that：The liquid crystal molecule is negative liquid crystal molecule,
The orientation angle of liquid crystal molecule respectively between upper half of farmland and lower half of farmland is 5-10 °, and its angle is the major axis of liquid crystal molecule
Bearing of trend and the second black matrix" bearing of trend between angle.
6. the liquid crystal display device according to Claims 2 or 3, it is characterised in that：The pixel electrode includes n slit,
Pixel region is provided with close to the first side of the 1st slit and the second side close to n-th of slit, the 1st slit and the
The distance between one side is equal to the distance between n-th of slit and second side.
7. liquid crystal display device according to claim 6, it is characterised in that：The distance between adjacent slots are more than the 1st
The distance between slit and first side.
8. liquid crystal display device according to claim 1, it is characterised in that：Public electrode is plane-shape electrode.
9. liquid crystal display device according to claim 1, it is characterised in that：The insulating barrier is inorganic insulation layer, organic
The mix insulation layer of insulating barrier or inorganic insulation layer and organic insulator.
10. liquid crystal display device according to claim 1, it is characterised in that：Upper substrate is CF substrates, and infrabasal plate is TFT
Substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710493585.9A CN107272265A (en) | 2017-06-26 | 2017-06-26 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710493585.9A CN107272265A (en) | 2017-06-26 | 2017-06-26 | Liquid crystal display device |
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| Publication Number | Publication Date |
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| CN107272265A true CN107272265A (en) | 2017-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710493585.9A Pending CN107272265A (en) | 2017-06-26 | 2017-06-26 | Liquid crystal display device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020057411A1 (en) * | 2000-11-14 | 2002-05-16 | Ik-Soo Kim | In-plane switching mode liquid crystal display device and manufacturing method thereof |
| CN101416105A (en) * | 2006-04-04 | 2009-04-22 | 夏普株式会社 | Liquid crystal display device |
| CN103809340A (en) * | 2012-11-13 | 2014-05-21 | 乐金显示有限公司 | Array Substrate For Fringe Field Switching Mode Liquid Crystal Display Device And Method Of Fabricating The Same |
| CN104483779A (en) * | 2014-11-20 | 2015-04-01 | 深圳市华星光电技术有限公司 | UV2A pixel structure |
| CN105487299A (en) * | 2016-01-26 | 2016-04-13 | 京东方科技集团股份有限公司 | Display baseplate as well as manufacture method and display device thereof |
-
2017
- 2017-06-26 CN CN201710493585.9A patent/CN107272265A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020057411A1 (en) * | 2000-11-14 | 2002-05-16 | Ik-Soo Kim | In-plane switching mode liquid crystal display device and manufacturing method thereof |
| CN101416105A (en) * | 2006-04-04 | 2009-04-22 | 夏普株式会社 | Liquid crystal display device |
| CN103809340A (en) * | 2012-11-13 | 2014-05-21 | 乐金显示有限公司 | Array Substrate For Fringe Field Switching Mode Liquid Crystal Display Device And Method Of Fabricating The Same |
| CN104483779A (en) * | 2014-11-20 | 2015-04-01 | 深圳市华星光电技术有限公司 | UV2A pixel structure |
| CN105487299A (en) * | 2016-01-26 | 2016-04-13 | 京东方科技集团股份有限公司 | Display baseplate as well as manufacture method and display device thereof |
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Effective date of registration: 20200901 Address after: No.7 Tianyou Road, Qixia District, Nanjing City, Jiangsu Province Applicant after: NANJING CEC PANDA LCD TECHNOLOGY Co.,Ltd. Address before: 210038, No. 9, Heng Yi Road, Nanjing economic and Technological Development Zone, Nanjing, Jiangsu Applicant before: NANJING CEC PANDA FPD TECHNOLOGY Co.,Ltd. Applicant before: NANJING CEC PANDA LCD TECHNOLOGY Co.,Ltd. Applicant before: Nanjing East China Electronic Information Technology Co.,Ltd. |
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Application publication date: 20171020 |