WO2020113644A1

WO2020113644A1 - Display panel and display device

Info

Publication number: WO2020113644A1
Application number: PCT/CN2018/120778
Authority: WO
Inventors: 黄世帅
Original assignee: 惠科股份有限公司
Priority date: 2018-12-05
Filing date: 2018-12-13
Publication date: 2020-06-11
Also published as: CN209343083U

Abstract

A display panel (110) and a display device (100). The display panel (110) comprises a substrate (111), a frame sealant (112), an outer peripheral component (113) and a drying component (114). The substrate (111) comprises a display region (117) and a non-display region (118). The display region (117) is used to display images. The non-display region (118) is arranged around the display region (117). The frame sealant (112) is provided around the substrate (111) at the non-display region (118) to form a sealed region. The outer peripheral component (113) is exposed outside the sealed region. The drying component (114) is positioned at an outer side of the outer peripheral component (113), and is used to absorb moisture. The display panel (110) and the display device (100) ensure dryness of air around the outer peripheral component (113), thereby enhancing corrosion resistance of the outer peripheral component (113).

Description

Display panel and display device

This application requires the filing of the Chinese Patent Office on December 05, 2018, with the application number CN201822029825.2, the priority of the Chinese patent application with the name "a display panel and display device", the entire content of which is incorporated by reference in this document Applying.

Technical field

The present application relates to the field of display technology, in particular to a display panel and a display device.

Background technique

The statements here only provide background information related to the present application and do not necessarily constitute prior art.

With the development and progress of science and technology, flat panel displays have become the mainstream products of the display due to the hotspots such as thin body, power saving and low radiation, which have been widely used. Flat panel displays include thin film transistor liquid crystal displays (Thin Film Transistor-Liquid Crystal (TFT-LCD) and organic light-emitting diode (Organic Light-Emitting Diode, OLED) displays, etc. Among them, the thin film transistor liquid crystal display controls the rotation direction of the liquid crystal molecules to refract the light of the backlight module to generate a picture, which has many advantages such as a thin body, power saving, no radiation and so on. The organic light emitting diode display is made of organic electroluminescent diodes, and has many advantages such as self-luminescence, short response time, high definition and contrast, flexible display and large-area full-color display.

The display panel is exposed to high temperature and high humidity for a long time, and the metal traces at its outline are easily corroded by water vapor.

Technical solution

The purpose of the present application is to provide a display panel and a display device, so as to prevent the metal traces at the outline frame from being corroded by water vapor.

In order to achieve the above object, the present application discloses a display panel including a substrate, a sealant, peripheral components, and a drying component; the substrate includes a display area and a non-display area, the display area is configured to display a screen, the non-display The display area is disposed around the display area; the sealant is circumferentially disposed on the non-display area to form a sealed area; the peripheral components are disposed on the substrate and are exposed outside the sealed area; and are located The drying member outside the peripheral member is configured to absorb moisture.

Optionally, the peripheral component includes a metal wire, and the material of the drying component includes metal.

Optionally, the display panel includes a scan line, the scan line is located in the display area and drives an active switch of the display panel, and the material of the drying component is the same as the material of the scan line.

Optionally, the display panel includes a protective layer, the protective layer completely covers the peripheral components, and the drying component is located outside the protective layer.

Optionally, the peripheral component includes a metal wire, and the distance between the drying component and the protective layer is greater than zero.

Optionally, the material of the protective layer is the same as the sealant.

Optionally, the material of the protective layer is Teflon.

Optionally, the material of the protective layer is the same as the passivation layer.

Optionally, the drying component is in contact with the protective layer.

Optionally, the peripheral component includes a metal wire, and the drying component is arranged in parallel with the metal wire.

Optionally, the height of the drying component is flush with the height of the peripheral component.

Optionally, the height of the drying component is greater than the height of the metal wire.

Optionally, the surface of the drying component is rough.

Optionally, the display panel includes a protective layer, and the protective layer covers both the peripheral component and the drying component.

Optionally, the distance between the peripheral component and the drying component is greater than 0, and the protective layer fills the gap between the peripheral component and the drying component.

Optionally, the substrate includes a first substrate and a second substrate, the first substrate and the second substrate are disposed in parallel and opposite to each other, and the sealant is disposed around the first substrate and the second substrate Form a sealed area.

Optionally, the first substrate is an array substrate, the peripheral components are metal wires, and the metal wires are located on the first substrate.

Optionally, the display panel includes a protective layer, the peripheral component includes a metal wire, the protective layer completely covers the metal wire, the drying component is located outside the protective layer, and the material of the drying component includes metal.

Optionally, the metal wire includes a common wire.

The present application also discloses a display panel, including a substrate, frame glue, peripheral components, drying components and a protective layer; the substrate includes a display area and a non-display area, the display area is configured as a display screen, the non-display The area is arranged around the display area; the sealant is circumferentially arranged on the substrate non-display area to form a sealed area; the peripheral component is exposed outside the sealed area; the drying component is located outside the peripheral component , Configured to absorb moisture; and completely cover the protective layer on the peripheral component; wherein, the peripheral component includes a metal wire, the material of the drying component includes metal, and the drying component is located outside the protective layer, The distance between the drying member and the protective layer is greater than zero.

The present application also discloses a display device including any of the above-mentioned display panels.

Compared with the solution without dry parts, in order to prevent the peripheral parts from being corroded by water vapor, the drying parts are arranged outside the peripheral parts. The moisture is absorbed by the drying parts before entering the peripheral parts, ensuring the air around the peripheral parts Dryness, thereby improving the corrosion resistance of peripheral components.

BRIEF DESCRIPTION

The included drawings are used to provide an understanding of the embodiments of the present application, which form a part of the specification, are used to illustrate the implementation of the present application, and explain the principle of the present application together with the textual description. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without paying creative labor, other drawings can also be obtained based on these drawings. In the drawings:

FIG. 1 is a schematic diagram of a display panel according to an embodiment of the present application;

2 is a schematic cross-sectional view of an outline frame area of a display panel according to an embodiment of the present application;

3 is a schematic cross-sectional view of a non-contour frame area of a display panel according to an embodiment of the present application;

4 is a schematic cross-sectional view of a protective layer and a drying member according to an embodiment of the present application;

5 is a schematic cross-sectional view of a protective layer and a drying member according to another embodiment of the present application;

6 is a schematic cross-sectional view of another embodiment of the present application where the protective layer is a sealant;

7 is a schematic cross-sectional view of a scan line according to another embodiment of the present application;

8 is a schematic diagram of a display device according to another embodiment of the present application.

Implementation of this application

The specific structural and functional details disclosed herein are merely representative and are for the purpose of describing exemplary embodiments of the present application. However, this application can be implemented in many alternative forms, and should not be interpreted as being limited to the embodiments set forth herein.

In the description of this application, it should be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, rather than indicating or implying the referred device Or the element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms “first” and “second” are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, the meaning of "plurality" is two or more. In addition, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusions.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it may be a fixed connection or may be Disassembly connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the connection between two components. For those of ordinary skill in the art, the specific meaning of the above terms in this application can be understood in specific situations.

The terminology used herein is for describing specific embodiments only and is not intended to limit exemplary embodiments. Unless the context clearly indicates otherwise, the singular forms "a" and "an item" as used herein are also intended to include the plural. It should also be understood that the terms "including" and/or "comprising" as used herein specify the presence of stated features, integers, steps, operations, units, and/or components without excluding the presence or addition of one or more Other features, integers, steps, operations, units, components, and/or combinations thereof.

The LCD (Liquid Crystal) includes a color filter substrate and a substrate, and a liquid crystal layer sandwiched between the two substrates. After completing the respective processes, the two substrates are injected with liquid crystal between the two substrates by ODF (Liquid Crystal Dropping) technology, and then assembled by sealant. In order to prevent the metal layer outside the side frame glue of the substrate from being affected by external static electricity or water vapor, a layer of tuffy glue is generally applied to the OLB (outline border) contour area to isolate the metal layer from the outside air In order to play a protective role.

However, there is no protection of tuffy glue in the non-OLB area of the display panel. If the display panel is placed in a high-temperature and high-humidity environment, the metal traces in the non-OLB area are prone to corrosion by moisture for a long time. After the corrosion occurs, the signal transmitted by the wiring will be affected, and the display panel will display abnormality. Even water vapor will pass through the sealant in the direction of metal corrosion and enter the interior of the display panel, generating liquid crystal bubbles.

In the figure, similar structures are indicated by the same reference numerals.

As shown in FIGS. 1 to 7, an embodiment of the present application discloses a display panel 110 including a substrate 111, a sealant 112, peripheral components 113, and a drying component 114; the substrate 111 includes a display area 117 and a non-display area 118. The area 117 is configured to display a picture, and the non-display area 118 is disposed around the display area 117; the sealant 112 is circumferentially disposed on the non-display area 117 to form a sealed area; the peripheral component 113 is disposed on the substrate 111 and is exposed outside the sealed area ; And the drying member 114 located outside the peripheral member 113 is configured to absorb moisture.

Relative to the solution shown in FIG. 3, the metal wire 116 is exposed outside and is susceptible to corrosion by air moisture. In order to prevent the peripheral component 113 from being corroded by moisture, the drying component 114 is provided outside the peripheral component 113, and moisture enters The peripheral component 113 is absorbed by the drying component 114 before, ensuring the dryness of the air around the peripheral component 113, thereby improving the corrosion resistance of the peripheral component 113.

In one embodiment, the peripheral component 113 includes a metal wire 116, and the material of the drying component 114 includes a metal.

In this solution, since the peripheral part 113 is made of metal, the drying part 114 is also made of metal, and the drying part 114 is outside the peripheral part 113. If there is water vapor, the water vapor will also corrode the outer metal first, which can slow down the inner part. Corrosion of the metal wire 116.

In one embodiment, as shown in FIGS. 5 and 7, the display panel 110 includes a scan line 119 which is located in the display area and drives the active switch of the display panel. The material of the drying part 114 is the same as the material of the scan line 119 .

In this solution, since the scanning line 119 is used when manufacturing the display panel 110, it is much more convenient to obtain and manufacture the drying part 114, and the material of the scanning line 119 and the peripheral parts 113 are both metals, and the water vapor is also corroded first. The outer metal can slow the corrosion of the metal wire 116.

In one embodiment, as shown in FIG. 5, the display panel 110 includes a protective layer 115 that completely covers the peripheral member 113 and the drying member 114 is located outside the protective layer 115.

In this solution, the protective layer 115 isolates the air to isolate the peripheral parts 113 from the moisture in the air, and the drying part 114 is located outside the protective layer 115, which can reduce the moisture concentration around the protective layer 115 and improve the protective effect of the protective layer 115, thereby Improve the corrosion resistance of the peripheral component 113.

In one embodiment, as shown in FIG. 5, the peripheral component 113 includes a metal wire 116, and the distance between the drying component 114 and the protective layer 115 is greater than zero.

In this solution, a gap is left between the drying member 114 and the protective layer 115 in order to increase the contact area between the drying member 114 and the air, fully absorb moisture around the protective layer 115, and improve the corrosion resistance of the peripheral member 113.

In an embodiment, as shown in FIG. 6, the material of the protective layer 115 is the same as the sealant 112.

In this solution, the frame glue 112 originally adheres to the upper and lower substrates 111 and supports the edge of the substrate 111. When adding frame glue 112 between the substrates, the frame glue 112 can be used to cover the peripheral parts 113, which is labor-saving and convenient. 112 has good adhesion, covers the peripheral part 113 stably, and is not easy to fall off, and the frame glue 112 is also waterproof, which becomes the second protective measure of the peripheral part 113.

In an embodiment, the material of the protective layer 115 is taffeta.

In this solution, in the manufacturing process of the display panel 110, the chip on film area is coated with taffeta to protect the circuit board and the metal wire 116 from leaking elsewhere. Teflon has good adhesion And anti-corrosion ability, as long as the tower non-rubber coating equipment is modified, the periphery of the metal wire 116 is also coated with tower non-rubber coating to protect the originally leaked metal wire 116 to protect the metal wire 116 from the outside world. The air is isolated, thereby improving the corrosion resistance of the metal wire 116.

In an embodiment, the material of the protective layer 115 is the same as the passivation layer.

In this solution, the passivation layer is used on the thin film transistor of the display panel 110, which has good adhesion and insulation effect, and it is also very convenient to obtain materials when manufacturing the display panel 110.

In one embodiment, the drying member 114 is in contact with the protective layer 115.

In this solution, the contact area of the drying member 114 and the protective layer 115 with air is reduced, and the duration of the drying effect of the drying member 114 is increased.

In an embodiment, the peripheral component 113 includes a metal wire 116, and the drying component 114 is arranged in parallel with the metal wire.

In this solution, the drying member 114 and the metal wire 116 are arranged side by side to protect the metal wire 116 in all directions.

In one embodiment, the height of the drying part 114 is flush with the height of the peripheral part 113.

In an embodiment, the height of the drying member 114 is greater than the height of the metal wire.

In this solution, the shielding area of the drying member 114 is increased to improve the protection effect.

In one embodiment, the surface of the drying member 114 is rough.

In this solution, the rough surface improves the surface of the desiccant member 114 and has a larger contact area with air, thereby improving the drying effect of the drying member 114.

In one embodiment, as shown in FIG. 4, the display panel 110 includes a protective layer 115 that covers both the peripheral part 113 and the drying part 114.

In this solution, the protective layer 115 wraps both the peripheral part 113 and the drying part 114. Due to the limited degree of drying of the drying part 114, if the water vapor is too large, the role of the drying part 114 will be reduced, and the protective layer 115 is used as the first protective layer The drying component 114 serves as a second protective layer. A large amount of water vapor will be blocked by the protective layer 115. A small amount of water vapor may enter the protective layer 115. The drying component 114 absorbs this small amount of water vapor, thereby improving the corrosion resistance of the peripheral component 113 ability.

In one embodiment, as shown in FIG. 4, the distance between the peripheral part 113 and the drying part 114 is greater than 0, and the protective layer 115 fills the gap between the peripheral part 113 and the drying part 114.

In this solution, the drying component 114 may be corroded by a small amount of water vapor entering the protective layer 115, and the drying ability of the drying component 114 may be weakened or disappeared over a long period of time. If the peripheral component 113 and the drying component 114 are in close contact at this time If the drying part 114 fails, the peripheral part 113 will be affected quickly, so there is a gap between the peripheral part 113 and the drying part 114 and filled with the protective layer 115, so that the drying part 114 fails and is corroded In this case, it can also be ensured that the peripheral component 113 will not be implicated soon, improving the corrosion resistance.

As shown in FIG. 5, as another embodiment of the present application, a display panel 110 is disclosed, which includes a substrate 111, a scanning line 119, a sealant 112, a peripheral component 113, a drying component 114, and a protective layer 115; the substrate 111 includes The display area 117 and the non-display area 118, the display area 117 is configured to display a picture, the non-display area 118 is disposed around the display area 117; the frame 112 is disposed around the non-display area 117 to form a sealed area; the peripheral part 113 is exposed Outside the sealed area; the drying member 114 is located outside the peripheral member 113 and is configured to absorb moisture; and the protective layer 115 completely covering the peripheral member 113; wherein, the peripheral member 113 includes a metal wire 116, and the material of the drying member 114 includes a metal, drying The material of the component 114 is the same as the material of the scanning line 119. The protective layer 115 is fixed to the peripheral component 113 on one side and to the sealant 112 on the other side. The drying component 114 is located outside the protective layer 115. The protective layer 115 does not cover the drying component 114. There is a certain gap between the component 114 and the protective layer 115.

In this solution, in order to prevent the peripheral component 113 from being corroded by moisture, the drying component 114 is provided outside the peripheral component 113. The moisture is absorbed by the drying component 114 before entering the peripheral component 113, ensuring the drying of the air around the peripheral component 113 Degree, which improves the corrosion resistance of the peripheral component 113. Since the peripheral component 113 is made of metal, the drying component 114 is also made of metal, and the drying component 114 is outside the peripheral component 113. If there is water vapor, the water vapor will also corrode first. The outer metal can reduce the corrosion of the inner metal line 116. The scan line 119 is located in the display area and drives the active switch of the display panel. Since the scan line 119 is used when manufacturing the display panel 110, it is much more convenient to obtain and manufacture the drying part 114, and the material and peripheral parts of the scan line 119 The material of 113 is all metal, and water vapor also corrodes the outer metal first, which can slow down the corrosion of the metal wire 116.

The protective layer 115 isolates the air and isolates the peripheral parts 113 from moisture in the air. The drying part 114 is located outside the protective layer 115, which can reduce the moisture concentration around the protective layer 115 and improve the protective effect of the protective layer 115, thereby improving the peripheral parts 113 Anti-corrosion ability. The gap between the drying member 114 and the protective layer 115 is to increase the contact area between the drying member 114 and the air, sufficiently absorb the moisture around the protective layer 115, and improve the corrosion resistance of the peripheral member 113.

As shown in FIG. 6, as another embodiment of the present application, a display panel 110 is disclosed, which includes a substrate 111, a scanning line 119, a sealant 112, a peripheral component 113, a drying component 114 and a protective layer 115. The substrate 111 includes a display area 117 and a non-display area 118. The display area 117 is configured to display a picture, and the non-display area 118 is disposed around the display area 117; the sealant 112 is disposed around the non-display area 117 to form a sealed area; peripheral components 113 is exposed outside the sealed area; the drying part 114 is located outside the peripheral part 113 and is configured to absorb moisture; and the protective layer 115 completely covering the peripheral part 113 is made of the same material as the sealant 112.

In this solution, the frame glue 112 originally adheres to the upper and lower substrates 111 and supports the edges of the substrate 111. The frame glue 112 has good adhesion, covers the peripheral parts 113 stably, is not easy to fall off, and the frame glue 112 is also waterproof , Become the second protective measure of peripheral parts 113.

As shown in FIG. 8, as another embodiment of the present application, a display device 100 is disclosed, including any display panel 110 of the above embodiment.

The technical solution of the present application can be widely applied to various display panels, such as Twisted Nematic (TN) display panel, In-Plane Switching (IPS) display panel, and Vertical Alignment (VA) Display panels, multi-quadrant vertical alignment (Multi-Domain Vertical Alignment, MVA) display panels, of course, can also be other types of display panels, such as organic light-emitting diode (Organic Light-Emitting Diode, OLED) display panels, can be applied The above program.

The above content is a further detailed description of this application in conjunction with specific optional embodiments, and it cannot be assumed that the specific implementation of this application is limited to these descriptions. For a person of ordinary skill in the technical field to which this application belongs, without deviating from the concept of this application, several simple deductions or replacements can be made, which should be regarded as falling within the protection scope of this application.

Claims

A display panel, including:

The substrate includes a display area and a non-display area, the display area is configured to display a picture, and the non-display area is disposed around the display area;

Frame glue is placed around the non-display area to form a sealed area;

Peripheral components, provided on the substrate, exposed outside the sealed area; and

The drying member, located outside the peripheral member, is configured to absorb moisture.
The display panel according to claim 1, wherein the peripheral component includes a metal wire, and the material of the drying component includes a metal.
The display panel according to claim 2, wherein the display panel includes a scan line, the scan line is located in the display area, and is configured to drive an active switch of the display panel, and the material of the drying component is The materials of the scan lines are the same.
A display panel according to claim 1, wherein the display panel includes a protective layer, the protective layer completely covers the peripheral member, and the drying member is located outside the protective layer.
A display panel according to claim 4, wherein the distance between the drying member and the protective layer is greater than zero.
The display panel according to claim 4, wherein the material of the protective layer is the same as the sealant.
The display panel according to claim 4, wherein the material of the protective layer is taffeta.
A display panel according to claim 4, wherein the material of the protective layer is the same as the passivation layer.
A display panel according to claim 4, wherein the drying member is in contact with the protective layer.
A display panel according to claim 1, wherein the peripheral member includes a metal wire, and the drying member is arranged in parallel with the metal wire.
A display panel according to claim 1, wherein the height of the drying member is flush with the height of the peripheral member.
A display panel according to claim 1, wherein the height of the drying member is greater than the height of the metal wire.
A display panel according to claim 1, wherein the surface of the drying member is rough.
A display panel according to claim 1, wherein the display panel includes a protective layer, and the protective layer covers both the peripheral member and the drying member.
A display panel according to claim 14, wherein the distance between the peripheral member and the drying member is greater than 0, and the protective layer fills the gap between the peripheral member and the drying member.
The display panel according to claim 1, wherein the substrate comprises a first substrate and a second substrate, the first substrate and the second substrate are arranged in parallel and opposite to each other, and the sealant is arranged around the A sealing area is formed on the first substrate and the second substrate.
A display panel according to claim 16, wherein the first substrate is an array substrate, the peripheral component is a metal wire, and the metal wire is located on the first substrate.
The display panel according to claim 1, wherein the display panel includes a protective layer, the peripheral component includes a metal wire, the protective layer completely covers the metal wire, and the drying member is located on the protective layer Outside, the material of the drying component includes metal.
A display panel, including:

Substrate

The sealant surrounds the non-display area of the substrate to form a sealed area;

Peripheral components are provided on the substrate and are exposed outside the sealed area;

A drying component, located outside the peripheral component, configured to absorb moisture; and

The protective layer completely covers the peripheral components;

Wherein, the peripheral component includes a metal wire, the material of the drying component includes metal, the drying component is located outside the protective layer, and the distance between the drying component and the protective layer is greater than zero.
A display device includes a display panel, the display panel includes:

The substrate includes a display area and a non-display area, the display area is configured to display a picture, and the non-display area is disposed around the display area;

Frame glue is placed around the non-display area to form a sealed area;

Peripheral components, provided on the substrate, exposed outside the sealed area; and

The drying member, located outside the peripheral member, is configured to absorb moisture.