CN110596922B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN110596922B CN110596922B CN201910901722.7A CN201910901722A CN110596922B CN 110596922 B CN110596922 B CN 110596922B CN 201910901722 A CN201910901722 A CN 201910901722A CN 110596922 B CN110596922 B CN 110596922B
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- CN
- China
- Prior art keywords
- color film
- film substrate
- liquid crystal
- array substrate
- display panel
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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
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
-
- 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
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
-
- 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
- G02F1/136204—Arrangements to prevent high voltage or static electricity failures
Abstract
The invention discloses a display panel and a display device, wherein the display panel comprises an array substrate; the color film substrate is arranged on the array substrate, the color film substrate and the array substrate comprise a first side surface and a second side surface which are oppositely arranged, the first side surface of the array substrate is aligned with the first side surface of the color film substrate, and the area of the array substrate exposed at the color film substrate is a first area; the first polarizer is arranged on one side of the color film substrate, which is far away from the array substrate; the liquid crystal box test terminal is arranged in the first area; the silver adhesive is arranged on one side of the color film substrate, which is far away from the array substrate, and extends to the first area along the second side face of the color film substrate; and the anisotropic conductive adhesive is arranged between the liquid crystal box test terminal and the silver adhesive. The display panel and the display device have the beneficial effects that the liquid crystal box test terminal is covered with the layer of anisotropic conductive adhesive, so that the liquid crystal box test terminal is prevented from being short-circuited due to overflowing silver adhesive.
Description
Technical Field
The present invention relates to the field of display, and in particular, to a display panel and a display device.
Background
The thin film transistor liquid crystal display has the characteristics of small volume, low power consumption, no radiation and the like, is rapidly developed in recent years, and occupies a leading position in the current flat panel display market. At present, TFT-LCDs are widely used in various products with large, medium and small sizes, and almost cover the major electronic products of the current information society, such as liquid crystal televisions, high definition digital televisions, computers (desktop and notebook), mobile phones, PDAs, GPS, vehicle displays, projection displays, video cameras, digital cameras, electronic watches, calculators, electronic instruments, meters, public displays, and illusion displays.
When the display panel normally operates, an Electrostatic Discharge (ESD) phenomenon may also occur, and the ESD is a main factor causing most electronic components or electronic systems to be damaged by an Electrical Overstress (EOS), and the damage may cause permanent damage to the semiconductor device, thereby causing a failure of the function of the integrated circuit.
In order to improve the static dissipation capability of the small-size liquid crystal display module, two schemes of high resistance film and silver glue dotting are generally adopted; and scribing the conductive polarizer and the silver adhesive.
At present, when the small-sized liquid crystal display module adopts a high-resistance film design scheme, the cost of the high-resistance film design scheme is increased by 1.6 RMB/sheet compared with that of a conductive polarizer design scheme.
When a narrow-frame small-size liquid crystal display module (COF product or COG product) adopts a conductive polarizer and silver colloid scribing process, the silver colloid overflows to a liquid crystal box test terminal after being sealed to cause the product to display large current, and the bad proportion is nearly 40%.
Disclosure of Invention
In order to solve the technical problems, the invention provides a display panel and a display device, which are used for solving the technical problem that the display panel is poor due to the fact that scribing silver paste overflows to cause the short circuit of a test terminal of a liquid crystal box in the prior art.
The technical scheme for solving the technical problems is as follows: the invention provides a display panel, which comprises an array substrate; the color film substrate is arranged on the array substrate, wherein the color film substrate and the array substrate comprise a first side surface and a second side surface which are oppositely arranged, the first side surface of the array substrate is aligned with the first side surface of the color film substrate, and the area of the array substrate exposed at the color film substrate is a first area; the first polarizer is arranged on one side of the color film substrate, which is far away from the array substrate; the liquid crystal box test terminal is arranged in the first area of the array substrate close to the color film substrate; the silver adhesive is arranged on one side of the color film substrate, which is far away from the array substrate, and extends to the first area along the second side face of the color film substrate; and the anisotropic conductive adhesive is arranged between the liquid crystal box test terminal and the silver adhesive.
Furthermore, the display panel further comprises a second polarizer which is arranged on one side of the array substrate far away from the color film substrate.
Furthermore, the first polarizer and the second polarizer are conductive polarizers, and the silver colloid is electrically connected with the first polarizer.
Further, the display panel further comprises a flexible circuit board which comprises a press fit portion, and the press fit portion is arranged in the first area of the array substrate close to the color film substrate; the liquid crystal box test terminals are arranged on two sides of the first area, and the press fit part is arranged between the liquid crystal box test terminals.
Further, an anisotropic conductive film covers the pressing portion.
Further, the distance from the stitching part to the second side surface of the color film substrate is equal to the distance from the liquid crystal box test terminal to the second side surface of the color film substrate.
Furthermore, the anisotropic conductive adhesive extends from the liquid crystal cell test terminal to the flexible circuit board and covers the press-fit portion of the flexible circuit board.
Furthermore, the first region further comprises a silver colloid coating area, the silver colloid coating area is arranged on one side, far away from the flexible circuit board, of the liquid crystal box test terminal, and the silver colloid coating area is filled with silver colloid.
Further, the projection of the silver paste on the first area is overlapped with the projection part of the liquid crystal box test terminal on the first area.
The invention provides a display device comprising the display panel.
The invention has the advantages that: according to the display panel and the display device, the liquid crystal box test terminal is covered with the anisotropic conductive adhesive layer, so that the liquid crystal box test terminal is prevented from being short-circuited due to the overflowing silver adhesive, and meanwhile, the distance from the flexible circuit board to the edge of the color film substrate can be adjusted to be the same as the distance from the liquid crystal box test terminal to the edge of the color film substrate, so that the anisotropic conductive adhesive can cover the flexible circuit board and the liquid crystal box test terminal at one time, and the working procedures are saved.
Drawings
The invention is further explained below with reference to the figures and examples.
Fig. 1 is a side view of a display panel in embodiment 1.
Fig. 2 is a partial schematic view of the display panel in embodiment 1.
Fig. 3 is a schematic view of a display device in embodiment 1.
Fig. 4 is a partial schematic view of the display panel in embodiment 2.
In the drawings
1 a display device; 10. 11 a display panel;
110 a first polarizer; 120 color film substrate;
130 an array substrate; 140 a second polarizer;
131 a first region; 150 liquid crystal cell test terminals;
160 a flexible circuit board; 161 a stitching part;
170 anisotropic conductive adhesive; 180 silver glue;
181 silver glue coating area;
Detailed Description
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
Example 1
As shown in fig. 1, in the present embodiment, the display panel 10 includes a first polarizer 110, a color filter substrate 120, an array substrate 130, and a second polarizer 140.
The first polarizer 110 and the second polarizer 140 are both conductive polarizers, the second polarizer 110 is disposed on one side of the color film substrate 120 away from the array substrate 130, the second polarizer 140 is disposed on one side of the array substrate 130 away from the color film substrate 120, both the first polarizer 110 and the second polarizer 140 have conductivity and have the ability of attracting electrons, and the flexibility of the conductive polarizers enables the conductive polarizers to wrap the color film substrate 120 and the array substrate 130, and based on the conductivity, the conductive polarizers can form an electrostatic shielding space, so that the display panel 10 can avoid the interference of an external electric field, has a certain protection effect, and enables the display panel 10 to have a certain drop impact resistance.
The color film substrate 120 is arranged opposite to the array substrate 130, wherein one side surface of the color film substrate 120 is aligned with one side surface of the array substrate 130, the other side surface of the array substrate 130 protrudes out of the color film substrate 120, and a portion of the array substrate 130 exposed out of the color film substrate 120 is a first region 131.
As shown in fig. 2, a plurality of liquid crystal cell test terminals 150(cell test pads) are disposed at two ends of the first region 131, a flexible circuit board 160 is attached to a middle portion of the first region 131, the flexible circuit board 160 includes a pressing portion 161, wherein the pressing portion 161 is pressed on the first region 131, and the flexible circuit board 160 is connected to the array substrate 130 through the pressing portion 161.
In order to prevent the short circuit of the circuit traces on the bonding portion 161, a layer of anisotropic conductive adhesive 170 covers the bonding portion 161, the anisotropic conductive adhesive 170 has the capabilities of transverse conduction and longitudinal separation, and conductive particles are used to connect the electrodes between the bonding portion 161 and the array substrate 130 to make them conductive, and at the same time, the conductive short circuit between two adjacent electrodes can be avoided.
The silver paste 180 is connected to the first polarizer 110, the side of the color filter substrate 120 and the first region 131 of the array substrate 130, a silver paste coating area 181 is disposed on the first region 131, and the silver paste coating area 181 is disposed on one side of the liquid crystal cell test terminal 150, which is far away from the press-fit portion 161. The silver paste 180 fills the silver paste coating region 181, and since the silver paste 180 is in a fluid state during coating, the silver paste 180 easily overflows the silver paste coating region 181 and spreads to the liquid crystal cell test terminal 150 adjacent to the silver paste coating region 181, thereby causing a short circuit of the liquid crystal cell test terminal 150.
In this embodiment, a layer of anisotropic conductive adhesive 170 is covered on the liquid crystal cell test terminal 150, and when the silver adhesive 180 overflows the silver adhesive coating region 181, the anisotropic conductive adhesive 170 has the capabilities of transverse conduction and longitudinal blocking, so that the short circuit of the liquid crystal cell test terminal 150 can be avoided.
As shown in fig. 3, in this embodiment, the display device 1 of the present invention includes the display panel 10, and the main technical features and the main technical effects are collectively embodied on the display panel 10, and the details of the remaining components of the display device 1 are not repeated.
Example 2
In this embodiment, the display panel 11 of the present invention has a structure substantially similar to the display panel 10 of embodiment 1, and as shown in fig. 4, the difference is that the distance from the stitching portion 161 to the color filter substrate 120 in the display panel 11 of the present invention is equal to the distance from the liquid crystal cell test terminal 150 to the color filter substrate 120, so that the stitching portion 161 and the liquid crystal cell test terminal 150 can be covered with the anisotropic conductive adhesive 180, which reduces the manufacturing steps and saves the cost.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A display panel, comprising
An array substrate;
the color film substrate is arranged on the array substrate, wherein the color film substrate and the array substrate comprise a first side surface and a second side surface which are oppositely arranged, the first side surface of the array substrate is aligned with the first side surface of the color film substrate, and the area of the array substrate exposed at the color film substrate is a first area;
the first polarizer is arranged on one side of the color film substrate, which is far away from the array substrate;
the liquid crystal box test terminal is arranged in the first area of the array substrate close to the color film substrate; the silver adhesive is arranged on one side of the color film substrate, which is far away from the array substrate, and extends to the first area along the second side face of the color film substrate;
the anisotropic conductive adhesive is arranged between the liquid crystal box test terminal and the silver adhesive;
the flexible circuit board comprises a press fit part, and the press fit part is arranged in the first area of the array substrate close to the color film substrate;
the liquid crystal box test terminals are arranged on two sides of the first area, and the press fit part is arranged between the liquid crystal box test terminals;
and the pressing part is covered with an anisotropic conductive film.
2. The display panel according to claim 1, further comprising
And the second polarizer is arranged on one side of the array substrate, which is far away from the color film substrate.
3. The display panel according to claim 2,
the first polaroid and the second polaroid are conductive polaroids, and the silver colloid is electrically connected with the first polaroid.
4. The display panel according to claim 1,
and the distance between the stitching part and the second side surface of the color film substrate is equal to the distance between the liquid crystal box test terminal and the second side surface of the color film substrate.
5. The display panel according to claim 4,
the anisotropic conductive adhesive extends from the liquid crystal box test terminal to the flexible circuit board and covers the press-fit part of the flexible circuit board.
6. The display panel according to claim 1,
the first region further comprises a silver colloid coating region, the silver colloid coating region is arranged on one side, far away from the flexible circuit board, of the liquid crystal box test terminal, and the silver colloid coating region is filled with silver colloid.
7. The display panel according to claim 1,
the projection of the silver paste on the first area is overlapped with the projection part of the liquid crystal box test terminal on the first area.
8. A display device characterized by comprising the display panel according to any one of claims 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910901722.7A CN110596922B (en) | 2019-09-23 | 2019-09-23 | Display panel and display device |
| PCT/CN2019/118514 WO2021056756A1 (en) | 2019-09-23 | 2019-11-14 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910901722.7A CN110596922B (en) | 2019-09-23 | 2019-09-23 | Display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110596922A CN110596922A (en) | 2019-12-20 |
| CN110596922B true CN110596922B (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910901722.7A Active CN110596922B (en) | 2019-09-23 | 2019-09-23 | Display panel and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110596922B (en) |
| WO (1) | WO2021056756A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112015017B (en) * | 2020-09-15 | 2022-09-27 | 武汉华星光电技术有限公司 | Test circuit and display panel test method |
| CN112968041B (en) * | 2021-02-02 | 2023-06-30 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN113075807A (en) * | 2021-03-23 | 2021-07-06 | 武汉华星光电技术有限公司 | Display panel |
| CN115019677B (en) * | 2022-07-01 | 2023-12-22 | 昆山国显光电有限公司 | Display panel and preparation method thereof, and preparation method of display device |
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| JP2010191097A (en) * | 2009-02-17 | 2010-09-02 | Seiko Instruments Inc | Liquid crystal display device and method for manufacturing the same |
| CN202013461U (en) * | 2011-04-29 | 2011-10-19 | 广东欧珀移动通信有限公司 | Structure capable of improving electro-static discharge (ESD) performance of display screen of mobile phone |
| JP6289163B2 (en) * | 2014-02-27 | 2018-03-07 | 三菱電機株式会社 | Liquid crystal display |
| CN107247373B (en) * | 2017-08-01 | 2020-05-22 | 厦门天马微电子有限公司 | Display panel and display device |
| CN207637131U (en) * | 2018-01-11 | 2018-07-20 | 昆山龙腾光电有限公司 | A kind of touch-control display panel and display device |
| CN108732830B (en) * | 2018-05-29 | 2024-01-23 | 上海天马微电子有限公司 | Display panel and display device |
| CN109445213B (en) * | 2018-12-13 | 2021-07-09 | 厦门天马微电子有限公司 | Display panel and display device |
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2019
- 2019-09-23 CN CN201910901722.7A patent/CN110596922B/en active Active
- 2019-11-14 WO PCT/CN2019/118514 patent/WO2021056756A1/en active Application Filing
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| JP2006301135A (en) * | 2005-04-19 | 2006-11-02 | Sharp Corp | Liquid crystal display element and flexible printed wiring board |
| KR20070082717A (en) * | 2006-02-17 | 2007-08-22 | 삼성전자주식회사 | Display apparatus for preventing corrosion |
| CN102005165A (en) * | 2009-08-28 | 2011-04-06 | 上海天马微电子有限公司 | Laminate testing device and method |
| CN109841181A (en) * | 2017-11-24 | 2019-06-04 | 上海和辉光电有限公司 | Array substrate, display panel and display device |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2021056756A1 (en) | 2021-04-01 |
| CN110596922A (en) | 2019-12-20 |
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