WO2020052095A1

WO2020052095A1 - Display panel and display device

Info

Publication number: WO2020052095A1
Application number: PCT/CN2018/118038
Authority: WO
Inventors: 黄北洲
Original assignee: 惠科股份有限公司
Priority date: 2018-09-14
Filing date: 2018-11-29
Publication date: 2020-03-19
Also published as: CN208848018U

Abstract

A display panel (100) and a display device. The display panel (100) comprises: a first substrate (110); a second substrate (120); a liquid crystal layer (140) located between the first substrate (110) and the second substrate (120), and the liquid crystal layer (140) comprising a liquid crystal (141); a frame adhesive (150) located on edges of the first substrate (110) and the second substrate (120), and used for bonding the first substrate (110) and the second substrate (120); a retaining wall (130) located between the liquid crystal layer (140) and the frame adhesive (150) to form a surrounding circle for blocking the liquid crystal (141) from entering the frame adhesive (150); the length of each side of the retaining wall (130) is greater than a straight line distance between two end points of each side.

Description

Display panel and display device

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on September 14, 2018, with application number CN201821514195.1, with the invention name "a display panel and a display device", the entire contents of which are incorporated herein by reference. in.

Technical field

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

Background technique

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

With the development and progress of science and technology, liquid crystal displays have many advantages such as thin body, power saving, no radiation, etc., and have been widely used. Most of the liquid crystal displays on the market are backlit liquid crystal displays, which include a liquid crystal display panel and a backlight module. The liquid crystal display panel includes a color filter substrate (CF Substrate, also called a color filter substrate), a thin film transistor array substrate (Thin Film Transistor Substrate, TFT Substrate), and transparent electrodes on the opposite sides of the substrate. A layer of liquid crystal molecules (LC) is sandwiched between the two substrates.

When the light beam passes through this layer of liquid crystal, the liquid crystal itself will stand in a row or twist in an irregular shape, thus blocking or allowing the light beam to pass through smoothly. Most liquid crystals are organic complexes composed of long rod-shaped molecules. In the natural state, the long axes of these rod-shaped molecules are approximately parallel. When the liquid crystal is poured into a well-processed slotted plane, the liquid crystal molecules are aligned along the grooves, so if those grooves are parallel, the molecules are also parallel. Liquid crystal is an intermediate substance between a crystalline state and a liquid state. It has certain characteristics of both liquid and crystal, showing some unique properties. After the sealant seals the two substrates, the liquid crystal will enter the sealant so that the risk of liquid crystal puncture becomes high.

Technical solutions

The object of the present application is to provide a display panel and a display device, so as to solve the problem that liquid crystal enters into the sealant and the risk of liquid crystal puncture becomes high.

This application provides a display panel, including:

First substrate

Second substrate

A liquid crystal layer between the first substrate and the second substrate, the liquid crystal layer including liquid crystal;

A frame adhesive, which is located at an edge of the first substrate and the second substrate, and adheres the first substrate and the second substrate;

The retaining wall is located between the liquid crystal layer and the frame rubber to form a surrounding circle to block the liquid crystal from entering the frame rubber;

The length of each side of the retaining wall is greater than the straight line distance between the ends of each side.

Optionally, the shape of the retaining wall is jagged.

Optionally, rounding is performed at the sharp corners on the inner side of the encircling circle formed by the retaining wall.

Optionally, rounding is performed at sharp corners on the outer sides of the encircling circle formed by the retaining wall.

Optionally, all sharp corners of the retaining wall are rounded.

Optionally, the retaining wall includes a rectangular corner, and adjacent two sides of the retaining wall are connected by the rectangular corner.

Optionally, the retaining wall includes a circular arc corner, and adjacent two sides of the retaining wall are connected by the circular arc corner.

Optionally, the display panel includes a membrane column, and the manufacturing process of the retaining wall is simultaneously completed during the manufacturing process of the membrane column.

Optionally, the material of the retaining wall and the membrane column is the same.

Optionally, the first substrate is an array substrate.

Optionally, the second substrate is a color filter substrate.

The present application also discloses a display panel including: a first substrate; a second substrate; a liquid crystal layer between the first substrate and the second substrate; the liquid crystal layer includes liquid crystal; The edges of the first substrate and the second substrate are bonded to the first substrate and the second substrate; a retaining wall is located between the liquid crystal layer and the frame adhesive to form an enclosing circle to prevent liquid crystal from entering the frame adhesive; The length of each side of the retaining wall is greater than the straight line distance between the ends of each side;

The shape of the retaining wall is jagged;

The retaining wall includes a rectangular corner, and adjacent two sides of the retaining wall are connected by the rectangular corner;

The display panel includes a membrane column, and the manufacturing process of the retaining wall is simultaneously completed during the manufacturing process of the membrane column.

The present application also discloses a display device, including:

First substrate

Second substrate

A frame adhesive, which is located at an edge of the first substrate and the second substrate, and adheres the first substrate and the second substrate; and

The path length of each side of the retaining wall is greater than the straight line distance between the two ends of the corresponding side.

Optionally, the shape of the retaining wall is jagged.

Optionally, the corners of the retaining wall are rounded.

Optionally, two adjacent sides of the retaining wall are connected by the arc corners.

Optionally, the manufacturing process of the retaining wall is simultaneously completed during the manufacturing process of the membrane column.

Compared with the general display panel, the application of adding a retaining wall can limit the movable range of the liquid crystal. The length of each side of the retaining wall is greater than the straight line distance between the two ends of each side, which increases the length of the retaining wall, thereby increasing the upper limit of the retaining wall. The surface area increases the support force of the retaining wall on the edge portion of the display panel when preventing liquid crystal puncture.

BRIEF DESCRIPTION OF THE DRAWINGS

The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the description, illustrate the embodiments of the present application, and explain the principles of the present application together with the text description. Obviously, the drawings in the following description are just some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative labor. In the drawings:

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

2 is a schematic diagram of a display panel structure according to another embodiment of the present application;

3 is a schematic diagram of a display panel structure according to another embodiment of the present application;

FIG. 4 is a schematic diagram of a cross-sectional structure of a display panel according to an embodiment of the present application.

detailed description

The specific structural and functional details disclosed herein are merely representative and are intended to describe exemplary embodiments of the present application. However, this application may be embodied in many alternative forms and should not be construed as limited to the embodiments set forth herein.

In the description of this application, it should be understood that the terms "center", "horizontal", "up", "down", "left", "right", "vertical", "horizontal", "top", The directions or positional relationships indicated by "bottom", "inside", "outside", etc. are based on the positional or positional relationships shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying the device referred to Or the element must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first" and "second" only describe the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, "multiple" means two or more. In addition, the term "including" and any variations thereof are intended to cover non-exclusive inclusion.

In the description of this application, it should be noted that the terms "installation", "connected", and "connected" should be understood in a broad sense unless explicitly stated and limited otherwise. For example, they may be fixed connections or removable. Connected or integrated; it can be mechanical or electrical; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood on a case-by-case basis.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments. Unless the context clearly indicates otherwise, as used herein, the singular forms "a" and "an" are 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 precluding the presence or addition of one or more Other features, integers, steps, operations, units, components, and / or combinations thereof.

The narrow bezel display panel requires that the width of the non-display area 180 is reduced, and after the area width is reduced, the risk that the liquid crystal 140 puncture will occur when the liquid crystal 140 of the display area 170 enters the frame seal 150.

The application is further described below with reference to the accompanying drawings and preferred embodiments.

As shown in FIG. 1 to FIG. 3, an embodiment of the present application discloses a display panel 100 including: a first substrate 110; a second substrate 120; and a liquid crystal layer 140 between the first substrate 110 and the second substrate 120. The liquid crystal layer 140 includes a liquid crystal 141; a sealant 150 located on the edges of the first substrate 110 and the second substrate 120, and bonding the first substrate 110 and the second substrate 120; a retaining wall 130 between the liquid crystal layer 140 and the sealant 150 , Forming an enclosing circle, blocking the liquid crystal 141 from entering the frame glue; the length of each side of the retaining wall 130 is greater than the straight line distance between the ends of each side; the retaining wall 130 can be set in one or more turns, and the width and height of the retaining wall 130 Adjustable; the blocking wall 130 is as close as possible to the frame adhesive 150 and away from the display area 170. The blocking wall 130 can be made only on the narrow side of the frame, and an opening is left on the wide side of the frame to increase the area of the liquid crystal 140. The first substrate 110 is an array substrate, and the second substrate 120 is a color filter substrate.

In this solution, adding a blocking wall 130 between the non-display area 180 and the frame adhesive 150 can limit the movable range of the liquid crystal 141. The length of each side of the blocking wall 130 is greater than the straight line distance between the ends of each side, and the blocking wall is increased. The length of 130 increases the upper surface area of the retaining wall 130 and increases the supporting force of the retaining wall 130 on the edge portion of the display panel 100 when puncturing of the liquid crystal 141 is prevented.

In one embodiment, the retaining wall 130 is jagged.

In this solution, compared with the linear retaining wall 130, the sawtooth-shaped retaining wall 130 can cause the liquid crystal 141 to flow back after entering the corner, thereby further preventing the liquid crystal 141 from puncturing.

In one embodiment, the corners of the inner side of the encircling circle formed by the retaining wall 130 are rounded.

In this solution, the inner corners of the surrounding circle formed by the retaining wall 130 are rounded, so that the sharp corners become circular arc corners 131, increasing the force area, and reducing the sharp corners of the liquid crystal 141 on the retaining wall 130. The pressure prevents the liquid crystal 141 from piercing the retaining wall 130.

In one embodiment, rounding is performed at sharp corners on the outer sides of the surrounding circle formed by the retaining wall 130.

In this solution, when the narrow frame is made, the retaining wall 130 and the frame adhesive 150 will be very close to each other. The outer corners of the surrounding circle formed by the retaining wall 130 will be rounded to prevent the sharp corners from damaging the frame adhesive 150 and causing glue. Unstable things happen.

In one embodiment, all sharp corners of the retaining wall 130 are rounded.

In this solution, in the production process, it is difficult to completely retain the sharp corners, and defects may occur. All the sharp corners of the retaining wall 130 are rounded.

In one embodiment, the retaining wall 130 includes a rectangular corner 132, and adjacent two sides of the retaining wall 130 are connected by a rectangular corner 132.

In this solution, concentrated pressure is easily generated at the included corners, which makes the liquid crystal 141 easily pierce the retaining wall 130. Now, rectangular corners 132 are used instead of the included corners to increase the force-bearing surface of the corners and increase the strength of the corners. The puncture phenomenon of the liquid crystal 141 at the connection between two adjacent sides is prevented.

In one embodiment, the retaining wall 130 includes an arc-shaped corner 131, and two adjacent sides of the retaining wall 130 are connected by an arc-shaped corner 131.

In this solution, concentrated pressure is easily generated at the included angles, which makes the liquid crystal 141 easily pierce the retaining wall 130. Now, the arc angle 131 is used instead of the included angle to disperse the pressure generated by the liquid crystal 141 to prevent the liquid crystal 141 from A puncture occurs at the edge joint.

In one embodiment, the display panel 100 includes a membrane column 160, and the manufacturing process of the barrier wall 130 is completed at the same time as the manufacturing process of the membrane column 160, and the barrier wall 130 and the membrane column 160 use the same material.

In this solution, the barrier wall 130 is manufactured at the same time as the membrane column 160 is manufactured, without newly adding a manufacturing process, and saving the manufacturing process.

As another embodiment of the present application, as shown in FIG. 1 to FIG. 3, a display panel 100 is disclosed, which includes: a first substrate 110; a second substrate 120; and a liquid crystal layer 140 located on the first substrate 110 and the second substrate. Between the substrates 120, the liquid crystal layer 140 includes liquid crystals 141; the frame adhesive 150 is located on the edges of the first substrate 110 and the second substrate 120, and the first substrate 110 and the second substrate 120 are bonded; the retaining wall 130 is located on the liquid crystal layer 140 and An enclosing circle is formed between the frame rubbers 150 to prevent the liquid crystal 141 from entering the frame rubbers; the length of each side of the retaining wall 130 is greater than the straight line distance between the ends of each side; the shape of the retaining wall 130 is jagged; the retaining wall 130 includes a rectangle Corner 132, two adjacent sides of the retaining wall 130 are connected by a rectangular corner 132; the manufacturing process of the retaining wall 130 is completed at the same time as the manufacturing process of the membrane column 160.

Compared to the general display panel 100, the application of increasing the retaining wall 130 can limit the movable range of the liquid crystal 141. The length of each side of the retaining wall 130 is greater than the straight line distance between the ends of each side, thereby increasing the length of the retaining wall 130, The upper surface area of the barrier wall 130 is increased, and the support force of the barrier wall 130 on the edge portion of the display panel 100 is increased when the puncture of the liquid crystal 141 is prevented. Compared with the linear blocking wall 130, the zigzag blocking wall 130 can cause the liquid crystal 141 to flow back after entering the corner, thereby further preventing the liquid crystal 141 from puncturing. The barrier wall 130 is manufactured at the same time as the membrane pillar 160 is manufactured.

As another embodiment of the present application, as shown in FIG. 1 to FIG. 3, a display device is disclosed. The display device includes: a first substrate 110; a second substrate 120; and a liquid crystal layer 140 between the first substrate 110 and the first substrate 110. Between the two substrates 120, the liquid crystal layer 140 includes liquid crystal 141; a frame adhesive 150 is located on the edge of the first substrate 110 and the second substrate 120, and the first substrate 110 and the second substrate 120 are bonded; Form an enclosing circle with the frame glue 150 to prevent the liquid crystal 141 from entering the frame glue; the length of each side of the retaining wall 130 is greater than the straight line distance between the two ends of each side; the retaining wall 130 can be provided with one or more circles to block The width and height of the wall 130 are adjustable; the retaining wall 130 is as close as possible to the frame adhesive 150 and away from the display area 170. The retaining wall 130 can be made only on the narrow side of the frame, and the opening is left on the wider side of the frame to increase the liquid crystal. 140 areas. The first substrate 110 is an array substrate, and the second substrate 120 is a color filter substrate.

In this solution, adding a blocking wall 130 between the non-display area 180 and the frame 150 can limit the movable range of the liquid crystal 141. The length of each side of the blocking wall 130 is greater than the straight line distance between the two ends of each side, increasing the blocking The length of the wall 130 increases the upper surface area of the retaining wall 130 and increases the supporting force of the retaining wall 130 on the edge portion of the display panel 100 when puncturing of the liquid crystal 141 is prevented. In one embodiment, the retaining wall 130 has a zigzag shape.

In one embodiment, all sharp corners of the retaining wall 130 are rounded.

In this solution, the barrier wall 130 is manufactured at the same time as the membrane column 160 is manufactured, and no new process is required, which saves the manufacturing process.

The panel of the present application may be a TN panel (Twisted Nematic, that is, a twisted nematic panel), an IPS panel (In-Plane Switching, plane conversion), or a VA panel (Multi-domain Vertica Alignment). Of course, It can also be other types of panels, as long as it is applicable.

The above content is a further detailed description of the present application in combination with specific preferred embodiments, and it cannot be considered that the specific implementation of this application is limited to these descriptions. For those 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 all be regarded as falling within the protection scope of this application.

Claims

A display panel includes:

First substrate

Second substrate

A liquid crystal layer between the first substrate and the second substrate, the liquid crystal layer including liquid crystal;

A frame adhesive, which is located at an edge of the first substrate and the second substrate, and adheres the first substrate and the second substrate; and

The retaining wall is located between the liquid crystal layer and the frame rubber to form a surrounding circle to block the liquid crystal from entering the frame rubber;

The path length of each side of the retaining wall is greater than the straight line distance between the two ends of the corresponding side.
The display panel according to claim 1, wherein the shape of the retaining wall is zigzag.
The display panel according to claim 2, wherein a rounding process is performed at a sharp corner on an inner side of a surrounding circle formed by the retaining wall.
The display panel according to claim 2, wherein rounded corners are formed at sharp corners on the outer sides of the surrounding circle formed by the retaining wall.
The display panel according to claim 2, wherein the corners of the retaining wall are rounded.
The display panel according to claim 1, wherein the retaining wall comprises a rectangular corner, and two adjacent sides of the retaining wall are connected by the rectangular corner.
The display panel according to claim 1, wherein the retaining wall comprises a circular arc corner, and two adjacent sides of the retaining wall are connected by the circular arc corner.
The display panel according to claim 1, wherein the display panel comprises a membrane column, and a process of manufacturing the retaining wall is simultaneously completed during the process of performing the membrane column.
The display panel according to claim 1, wherein the first substrate is an array substrate.
The display panel according to claim 1, wherein the second substrate is a color filter substrate.
The display panel according to claim 8, wherein the materials of the retaining wall and the film column are the same.
A display panel includes:

First substrate

Second substrate

A liquid crystal layer between the first substrate and the second substrate, the liquid crystal layer including liquid crystal;

A frame adhesive, which is located at an edge of the first substrate and the second substrate, and adheres the first substrate and the second substrate;

The retaining wall is located between the liquid crystal layer and the frame rubber to form a surrounding circle to block the liquid crystal from entering the frame rubber;

The length of each side of the retaining wall is greater than the straight line distance between the two ends of each side;

The shape of the retaining wall is jagged;

The retaining wall includes a rectangular corner, and adjacent two sides of the retaining wall are connected by the rectangular corner; and

The display panel includes a membrane column, and the manufacturing process of the retaining wall is simultaneously completed during the manufacturing process of the membrane column.
A display device includes:

First substrate

Second substrate

A liquid crystal layer between the first substrate and the second substrate, the liquid crystal layer including liquid crystal;

A frame adhesive, which is located at an edge of the first substrate and the second substrate, and adheres the first substrate and the second substrate; and

The retaining wall is located between the liquid crystal layer and the frame rubber to form a surrounding circle to block the liquid crystal from entering the frame rubber;

The path length of each side of the retaining wall is greater than the straight line distance between the two ends of the corresponding side.
The display device according to claim 10, wherein a shape of the retaining wall is zigzag.
The display device according to claim 11, wherein a rounding process is performed at a sharp corner on an inner side of a surrounding circle formed by the retaining wall.
The display device according to claim 11, wherein a rounding process is performed at sharp corners on the outer sides of the surrounding circle formed by the retaining wall.
The display device according to claim 11, wherein the corners of the retaining wall are rounded.
The display device according to claim 10, wherein the retaining wall comprises a rectangular corner, and adjacent two sides of the retaining wall are connected by the rectangular corner.
The display device according to claim 10, wherein the retaining wall comprises a circular arc corner, and two adjacent sides of the retaining wall are connected by the circular arc corner.
The display device according to claim 10, wherein the display device comprises a membrane column, and the manufacturing process of the retaining wall is simultaneously completed during the manufacturing process of the membrane column.