CN109633996B - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
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- CN109633996B CN109633996B CN201811448680.8A CN201811448680A CN109633996B CN 109633996 B CN109633996 B CN 109633996B CN 201811448680 A CN201811448680 A CN 201811448680A CN 109633996 B CN109633996 B CN 109633996B
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- common electrode
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- liquid crystal
- insulating layer
- 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
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
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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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136227—Through-hole connection of the pixel electrode to the active element through an insulation layer
Abstract
The invention provides a liquid crystal display device, which comprises a color film substrate, an array substrate and a liquid crystal layer, wherein the color film substrate comprises a plurality of color resistance layers, a black matrix, a flat layer covering the color resistance layers, a first common electrode covering the flat layer, a first insulating layer covering the first common electrode, and a pixel electrode positioned on the first insulating layer; the array substrate comprises a source drain electrode, a second insulating layer covering the source drain electrode and a second common electrode covering the second insulating layer; and conductive resin is also arranged between the color film substrate and the array substrate and conducts the pixel electrode and the drain electrode. According to the invention, the first common electrode and the pixel electrode are arranged on the color film substrate, the conductive resin is added between the color film substrate and the array substrate, and the pixel electrode is conducted with the drain electrode.
Description
Technical Field
The invention relates to the technical field of display device manufacturing, in particular to a liquid crystal display device.
Background
The liquid crystal display device is a flat panel display device which is most widely used at present, the liquid crystal display device has a plurality of display modes, the liquid crystal display device is widely used at present and is an FFS mode, fig. 1 is a structural schematic diagram of a liquid crystal display device with a common FFS mode, the liquid crystal display panel comprises a color film substrate 1, an array substrate 2 and a liquid crystal layer 3 clamped between the color film substrate 1 and the array substrate 2 which are oppositely arranged, a red resistor 4, a green resistor 5, a blue resistor 6, a black matrix BM 7, a flat layer OC 8 and an alignment layer PI 9 are arranged on a glass substrate 16 of the color film substrate 1, a layer of antistatic ITO 10 and silver paste dots are plated on the back surface of the color film substrate 1, and the back surface of the color film substrate is connected with an external circuit of the panel through the silver paste dots; the array substrate 2 is provided with a source electrode 11, a drain electrode, a first insulating layer 12, a common electrode 13, a second insulating layer 14, a pixel electrode 15 and an alignment layer 9 on a glass substrate 16; an upper polarizer is attached to the color film substrate 1, and a lower polarizer is attached to the array substrate 2; the liquid crystal is horizontally twisted by the fringe field formed between the pixel electrode 15 and the common electrode 13, so that the vibration direction of the polarized light formed by the lower polarizer is deflected by the liquid crystal layer and is emitted through the red, green and blue resistors and the upper polarizer.
In the above structure, normally, if the screen displays red, light will not be transmitted from the adjacent G or B pixel position when the display device is viewed with a large viewing angle, but due to a tolerance in the manufacturing process, the Color filter substrate and the array substrate will be misaligned, and when the display device is viewed with a large viewing angle, light will be transmitted from the G or B pixel opening area, and at this time, the optical quality of the display device will be observed as a Color mixed with G or B, that is, a Color Shift phenomenon (Color Shift) will occur.
Disclosure of Invention
The invention aims to provide a liquid crystal display device, which aims to solve the problem of large visual angle color cast caused by alignment offset of the conventional liquid crystal display device.
The invention provides a liquid crystal display device, which comprises a color film substrate, an array substrate and a liquid crystal layer, wherein the color film substrate and the array substrate are arranged in parallel relatively, the liquid crystal layer is positioned between the color film substrate and the array substrate, the color film substrate comprises a plurality of color resistance layers, a black matrix positioned between the two color resistance layers, a flat layer covered on the color resistance layers, a first common electrode covered on the flat layer, a first insulating layer covered on the first common electrode, and a pixel electrode positioned on the first insulating layer; the array substrate comprises a source drain electrode, a second insulating layer covering the source drain electrode and a second common electrode covering the second insulating layer; and conductive resin is also arranged between the color film substrate and the array substrate and conducts the pixel electrode and the drain electrode.
Further, the second common electrode comprises a strip-shaped second common electrode and a rectangular second common electrode, the strip-shaped second common electrode covers the second insulating layer above the source electrode, and the rectangular second common electrode covers the second insulating layer above the drain electrode.
Furthermore, the rectangular second common electrode and the second insulating layer located above the drain electrode are both provided with openings, one end of the conductive resin sequentially penetrates through the openings of the rectangular second common electrode and the second insulating layer to be connected with the drain electrode, the other end of the conductive resin is connected with the pixel electrode, and the pixel electrode is conducted with the drain electrode through the conductive resin.
Further, the black matrix is conducted with the first common electrode and is connected in parallel.
Further, frame sealing glue is arranged on the edges of the color film substrate and the array substrate, a conductive gold ball is arranged in the frame sealing glue, and the conductive gold ball conducts the first common electrode with the second common electrode.
Furthermore, the pixel electrodes are strip-shaped.
Further, the color resistance layers comprise red resistance layers, green resistance layers and blue resistance layers which are alternately distributed.
Further, alignment films are arranged on the color film substrate and the array substrate close to the liquid crystal layer side.
According to the invention, the first common electrode and the pixel electrode are arranged on the color film substrate, the conductive resin is added between the color film substrate and the array substrate, and the pixel electrode is conducted with the drain electrode, so that the large-viewing-angle color deviation formed by the contraposition deviation of the color film substrate and the array substrate can be avoided, the first common electrode can replace the traditional back side of the color film substrate to be plated with the antistatic ITO, the antistatic effect is achieved, and the process of plating the antistatic ITO on the back side of the color film substrate is omitted.
Drawings
FIG. 1 is a schematic view of a typical FFS mode LCD device;
FIG. 2 is a first cross-sectional view of a liquid crystal display device according to the present invention;
FIG. 3 is a second cross-sectional view of a liquid crystal display device according to the present invention;
FIG. 4 is a schematic diagram of a source-drain structure of the liquid crystal display device of the present invention;
FIG. 5 is a schematic diagram of a second common electrode structure of an LCD device according to the present invention.
Detailed Description
The present invention is further illustrated by the following detailed description in conjunction with the accompanying drawings, it is to be understood that such embodiments are merely illustrative of and not restrictive on the broad invention, and that various equivalent modifications of the invention may occur to those skilled in the art upon reading the appended claims.
The invention provides a liquid crystal display device, as shown in fig. 2 and fig. 3, comprising a color film substrate 20, an array substrate 30 and a liquid crystal layer 3 positioned between the color film substrate 20 and the array substrate 30, which are arranged in parallel, wherein the color film substrate 20 comprises a glass substrate 16 on which a plurality of red resistance layers 4, green resistance layers 5 and blue resistance layers 6 are formed at intervals, a black matrix 7 is arranged between every two adjacent color resistance layers, the black matrix 7 has the function of shading, a flat layer 17 covers the black matrix 7, a first common electrode 18 covers the flat layer 17, the black matrix 7 is conducted with the first common electrode 18 and is formed in parallel, thereby reducing the total resistance of the black matrix 7 and the first common electrode 18, the first common electrode 18 may function as an anti-static electricity, therefore, the process of plating the antistatic ITO and the silver paste dots on the back surface of the color film substrate 20 can be cancelled; the first common electrode 18 is covered with a first insulating layer 19, a pixel electrode 21 is formed on the first insulating layer 19, the pixel electrode 21 is a strip electrode, and the pixel electrode 21 is covered with an alignment film 9.
The array substrate 30 comprises a grid 60 formed on a glass substrate 16, a grid insulating layer 70 covered on the grid 60, a source electrode 11 and a drain electrode 31 formed on the grid insulating layer 70, a second insulating layer 32 covered on the source electrode 11 and the drain electrode 31, and a second common electrode 33 covered on the second insulating layer 32, wherein an alignment film 9 is covered on the second common electrode 33; fig. 4 is a schematic view of a source-drain structure of the liquid crystal display device of the present invention, where the source 11 is a bent strip, the drain 32 is a rectangle, fig. 5 is a schematic view of a second common electrode structure of the liquid crystal display device of the present invention, the shape of the second common electrode 33 is similar to the shape of the source 11 and the drain 31, the second common electrode 33 includes a strip second common electrode 331 and a rectangular second common electrode 332, the strip second common electrode 331 covers the second insulating layer 32 above the source 11, the rectangular second common electrode 332 covers the second insulating layer 32 above the drain 31, the strip second common electrode 331 is wider than the source 11 by about 2um, the rectangular second common electrode 332 is wider than the drain 31 by about 2um, the second common electrode 33 is used for shielding the source 11 and the drain 31, and preventing an electric field from being formed between the source 11 and the drain 31 and the pixel electrode 21; the rectangular second common electrode 332 has an opening 333, and the second insulating layer 32 above the drain electrode 31 has an opening; a conductive resin 40 is further arranged between the color film substrate 20 and the array substrate 30, one end of the conductive resin 40 sequentially penetrates through the opening 333 of the rectangular second common electrode 332 and the opening on the second insulating layer 31 to be connected with the drain electrode 31, and the other end of the conductive resin 40 is connected with the pixel electrode 21, so that the pixel electrode 21 is conducted with the drain electrode 31 through the conductive resin 40; the edges of the color film substrate 20 and the array substrate 40 are provided with a frame sealing adhesive 50, a conductive gold ball 51 is arranged in the frame sealing adhesive 50, and the conductive gold ball 51 conducts the first common electrode 18 and the second common electrode 33.
According to the invention, the first common electrode and the pixel electrode are arranged on the color film substrate, the liquid crystal layer is driven through the first common electrode and the pixel electrode which are arranged on the color film substrate, the pixel electrode on the array substrate side is eliminated, the conductive resin is added between the color film substrate and the array substrate, and the pixel electrode is conducted with the drain electrode; the array substrate shields a source drain electrode and a grid electrode electric field through the second common electrode, the design can avoid large visual angle color cast formed by contraposition offset of the color film substrate and the array substrate, the first common electrode can replace the traditional color film substrate back surface to be plated with antistatic ITO, an antistatic effect is achieved, and the manufacturing process of plating the antistatic ITO on the back surface of the color film substrate is omitted.
Claims (5)
1. The utility model provides a liquid crystal display device, includes the various membrane base plate, the array substrate that set up relatively and lies in the liquid crystal layer between various membrane base plate and the array substrate, its characterized in that: the color film substrate comprises a plurality of color resistance layers, a black matrix positioned between the two color resistance layers, a flat layer covering the color resistance layers and the black matrix, a first common electrode covering the flat layer, a first insulating layer covering the first common electrode, and a pixel electrode positioned on the first insulating layer, wherein the black matrix and the first common electrode are conducted and connected in parallel, and the first common electrode is also used for playing an antistatic role; the array substrate comprises a source electrode, a drain electrode, a second insulating layer covering the source electrode and the drain electrode, and a second common electrode covering the second insulating layer; conductive resin is also arranged between the color film substrate and the array substrate and conducts the pixel electrode with the drain electrode;
the second common electrode comprises a strip-shaped second common electrode and a rectangular second common electrode, the strip-shaped second common electrode covers the second insulating layer above the source electrode, the rectangular second common electrode covers the second insulating layer above the drain electrode, the strip-shaped second common electrode is not in contact with the rectangular second common electrode, and the second common electrode is used for shielding the source electrode and the drain electrode;
the rectangular second common electrode and the second insulating layer located above the drain electrode are provided with openings, one end of the conductive resin sequentially penetrates through the openings of the rectangular second common electrode and the second insulating layer to be connected with the drain electrode, the other end of the conductive resin is connected with the pixel electrode, and the pixel electrode is conducted with the drain electrode through the conductive resin.
2. The liquid crystal display device according to claim 1, wherein: the edge of the color film substrate and the edge of the array substrate are provided with frame sealing glue, a conductive gold ball is arranged in the frame sealing glue, and the conductive gold ball conducts the first common electrode with the second common electrode.
3. The liquid crystal display device according to claim 1, wherein: the pixel electrodes are strip-shaped.
4. The liquid crystal display device according to claim 1, wherein: the color resistance layer comprises a red resistance layer, a green resistance layer and a blue resistance layer which are alternately distributed.
5. The liquid crystal display device according to claim 4, wherein: and alignment films are arranged on the color film substrate and the array substrate close to the liquid crystal layer side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811448680.8A CN109633996B (en) | 2018-11-28 | 2018-11-28 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811448680.8A CN109633996B (en) | 2018-11-28 | 2018-11-28 | Liquid crystal display device |
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| Publication Number | Publication Date |
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| CN109633996A CN109633996A (en) | 2019-04-16 |
| CN109633996B true CN109633996B (en) | 2022-05-10 |
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| CN201811448680.8A Active CN109633996B (en) | 2018-11-28 | 2018-11-28 | Liquid crystal display device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112684628A (en) * | 2021-01-15 | 2021-04-20 | Tcl华星光电技术有限公司 | Liquid crystal display panel and color film substrate manufacturing method |
| CN114280826A (en) * | 2021-12-30 | 2022-04-05 | Oppo广东移动通信有限公司 | Liquid crystal display panel, display screen, electronic equipment and control method |
Citations (7)
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| CN1448770A (en) * | 2002-03-28 | 2003-10-15 | Nec液晶技术株式会社 | Liquid crystal display (LCD) |
| JP2004295016A (en) * | 2003-03-28 | 2004-10-21 | Fujitsu Display Technologies Corp | Liquid crystal panel and method for manufacturing same |
| CN101149541A (en) * | 2006-09-22 | 2008-03-26 | 北京京东方光电科技有限公司 | Liquid crystal display device with color film on thin-film transistor and its manufacture method |
| CN101546076A (en) * | 2008-03-26 | 2009-09-30 | 北京京东方光电科技有限公司 | TFT-LCD array substrate and color film substrate and manufacturing method thereof |
| CN201853030U (en) * | 2010-09-17 | 2011-06-01 | 华映视讯（吴江）有限公司 | Transflective liquid crystal display panel |
| CN103676265A (en) * | 2012-09-07 | 2014-03-26 | Nlt科技股份有限公司 | Lateral electric field type liquid crystal display device |
| CN107065340A (en) * | 2015-11-19 | 2017-08-18 | 三菱电机株式会社 | Liquid crystal display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM401136U (en) * | 2010-09-09 | 2011-04-01 | Chunghwa Picture Tubes Ltd | Transflective liquid crystal display panel |
-
2018
- 2018-11-28 CN CN201811448680.8A patent/CN109633996B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1448770A (en) * | 2002-03-28 | 2003-10-15 | Nec液晶技术株式会社 | Liquid crystal display (LCD) |
| JP2004295016A (en) * | 2003-03-28 | 2004-10-21 | Fujitsu Display Technologies Corp | Liquid crystal panel and method for manufacturing same |
| CN101149541A (en) * | 2006-09-22 | 2008-03-26 | 北京京东方光电科技有限公司 | Liquid crystal display device with color film on thin-film transistor and its manufacture method |
| CN101546076A (en) * | 2008-03-26 | 2009-09-30 | 北京京东方光电科技有限公司 | TFT-LCD array substrate and color film substrate and manufacturing method thereof |
| CN201853030U (en) * | 2010-09-17 | 2011-06-01 | 华映视讯（吴江）有限公司 | Transflective liquid crystal display panel |
| CN103676265A (en) * | 2012-09-07 | 2014-03-26 | Nlt科技股份有限公司 | Lateral electric field type liquid crystal display device |
| CN107065340A (en) * | 2015-11-19 | 2017-08-18 | 三菱电机株式会社 | Liquid crystal display device |
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| CN109633996A (en) | 2019-04-16 |
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Effective date of registration: 20200826 Address after: No.7 Tianyou Road, Qixia District, Nanjing City, Jiangsu Province Applicant after: NANJING CEC PANDA FPD TECHNOLOGY Co.,Ltd. Address before: Nanjing Crystal Valley Road in Qixia District of Nanjing City Tianyou 210033 Jiangsu province No. 7 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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Address after: No.7 Tianyou Road, Qixia District, Nanjing City, Jiangsu Province Applicant after: Nanjing BOE Display Technology Co.,Ltd. Address before: No.7 Tianyou Road, Qixia District, Nanjing City, Jiangsu Province Applicant before: NANJING CEC PANDA FPD TECHNOLOGY Co.,Ltd. |
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