CN111402732A

CN111402732A - Display panel

Info

Publication number: CN111402732A
Application number: CN202010220976.5A
Authority: CN
Inventors: 朱志涛; 黄威
Original assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Current assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-07-10

Abstract

The invention discloses a display panel, comprising a flexible substrate; the back plate is arranged on one side surface of the flexible substrate; the reinforcing ribs are arranged on the side face of the flexible substrate; and the driving chip is arranged on one side of the flexible substrate, which is far away from the reinforcing rib. The display panel has the technical effects that the reinforcing ribs are introduced into the bending area, so that the bending resistance and the pressure resistance of the display panel are improved, the damage of a driving chip caused by bubbles generated by the display panel is avoided, and the yield of the display panel is improved.

Description

Display panel

Technical Field

The application relates to the field of display, in particular to a display panel.

Background

When the display industry pursues narrow-border experience, the design tends to be a Pad bending process structure. In the COP bending process, the back plate for supporting cannot be completely pressed during the lamination due to the driving chip, and as a result, bubbles are generated during the lamination of the back plate and the panel part. When the padending process is performed, the pressure head is pressed downwards, so that the bubbles move to the convex part of the driving chip to damage the driving chip.

Disclosure of Invention

The invention provides a display panel, which is used for solving the technical problem that a flexible substrate and a back plate of a binding region cannot be completely attached in the prior art.

The technical scheme for solving the problems is as follows: the invention provides a display panel, comprising a flexible substrate; the back plate is arranged on one side surface of the flexible substrate; the reinforcing ribs are arranged on the side face of the flexible substrate; and the driving chip is arranged on one side of the flexible substrate, which is far away from the reinforcing rib.

Furthermore, the display panel also comprises a display area, and the back plate is arranged in the display area; the reinforcing rib and the driving chip are arranged in the binding region; and one end of the bending area is connected to the display area side, and the other end of the bending area is connected to the binding area side.

Furthermore, the display panel further comprises a polarizer which is arranged in the display area and arranged on one side of the flexible substrate far away from the back plate.

Furthermore, the display panel further comprises a cover plate which is arranged in the display area and is arranged on one side of the polaroid, which is far away from the flexible substrate.

Further, the material of the reinforcing rib comprises hard plastic.

Furthermore, the thickness of the reinforcing rib is 300-600 mu m.

Further, the thickness of the back plate is the same as that of the reinforcing ribs.

Furthermore, the bending area comprises a bending central line, and one side of the bending area, which is close to the binding area, is bent towards the direction of the back plate of the display area.

Furthermore, the driving chip is arranged in the middle of the binding area.

Furthermore, after the bending area is bent, a gap is formed between the reinforcing rib and the back plate.

Advantageous effects

The display panel has the technical effects that the reinforcing ribs are introduced into the bending area, so that the bending resistance and the pressure resistance of the display panel are improved, the damage of a driving chip caused by bubbles generated by the display panel is avoided, and the yield of the display panel is improved.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is an expanded schematic view of a display panel in an embodiment.

Fig. 2 is an expanded top view of the display panel in the embodiment.

Fig. 3 is a schematic structural view of the reinforcing rib in the embodiment.

Fig. 4 is a schematic view of a display panel in an embodiment.

Reference numbers in the figures:

10 a flexible substrate; 20 a back plate;

30 reinforcing ribs; 40 a driving chip;

50 polarizers; 60 a cover plate;

11 a display area; 12, a binding region;

13 a bending region; 31, installing the equipment.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Examples

As shown in fig. 1, fig. 1 is a schematic view of the display panel in the embodiment. In this embodiment, the display panel of the present invention includes a flexible substrate 10, a back plate 20, a stiffener 30, a driving chip 40, a polarizer 50, and a cover plate 60.

The flexible substrate 10 includes a light emitting surface for displaying a picture, and the flexible substrate 10 uses a flexible material as a substrate. The material of the flexible substrate comprises: in this embodiment, the flexible substrate 10 is made of a polyimide material, and the polyimide material has the advantages of wide temperature range, chemical resistance, high strength, and the like, so that the flexible substrate 10 has good flexibility.

The polarizer 50 is arranged on one side of the light-emitting surface of the flexible substrate 10, and the polarizer 50 is formed by an upper TAC (triacetyl cellulose) protective layer, a PVA (polyvinyl alcohol) layer and a lower TAC protective layer; the upper TAC protection layer and the lower TAC protection layer are used for protecting the PVA layer and preventing the PVA layer from shrinking; the PVA layer forms polarizing photons after being dyed and extended, and changes natural light into polarized light, thereby playing the role of linear polarization.

The cover plate 60 is disposed on one side of the polarizer 50 away from the flexible substrate 10, and the cover plate 60 is made of a hard glass substrate and is used for protecting the polarizer 50 and the flexible substrate 10 and preventing external water vapor and impurities from invading the display panel.

As shown in fig. 2, fig. 2 is an expanded top view of the display panel in the embodiment. The display panel further includes a display region 11, a bonding region 12, and a bending region 13, and the driving chip 40 is disposed in the bonding region 12 of the flexible substrate 10 through a bonding process.

The back plate 20 is disposed on a side of the flexible substrate 10 away from the light exit surface, the back plate 20 is disposed in the display area 11, and the back plate 20 is used for supporting, protecting, shading and reflecting the flexible substrate 10. Optionally, a foam layer may be further disposed on the back surface of the back plate 20, and the foam layer is used to further protect the flexible substrate 10.

As shown in fig. 3, fig. 3 is a view showing a reinforcing bar mounting step in the embodiment. The reinforcing ribs 30 are arranged on one side of the flexible substrate 10 far away from the light emergent surface, after the bending area 13 is bent, the reinforcing ribs 30 are arranged opposite to the back plate 20, the reinforcing ribs 30 are used for supporting and protecting the flexible substrate 10, and meanwhile, the problems of deformation, fracture and the like caused by bending force in the bending process of the flexible substrate 10 are avoided, in the embodiment, the reinforcing ribs 30 are made of hard resin materials, the thickness of the reinforcing ribs is 300-600 mu m, when the reinforcing ribs 30 are attached, the side surface of the back plate 10 of the display panel is supported through the reinforcing rib 30 mounting equipment 31, pressure can be applied to two sides of the driving chip 40, so that the reinforcing ribs 30 can be completely attached to the flexible substrate 10, and due to the characteristic that the reinforcing ribs 30 are hard, air bubbles cannot be left between the reinforcing ribs 30 and the flexible substrate 10, and the driving chip 40 is prevented from being damaged due to, the driving chip 40 is effectively protected, the service life of the driving chip 40 is prolonged, and the service life of the display panel is prolonged.

As shown in fig. 4, in this embodiment, the bonding region 12 is bent toward a direction away from the light emitting surface of the flexible substrate 10, that is, the reinforcing ribs 30 are bent toward the back plate 20, so that the driving chip 40 is located on the back surface of the flexible substrate 10.

In the embodiment, the display panel has the technical effects that the reinforcing ribs are introduced into the bending area of the display panel, so that the bending resistance and the pressure resistance of the display panel are improved, meanwhile, the display panel is prevented from generating bubbles to cause damage to the driving chip, and the yield of the display panel is improved.

The above description of the embodiments is only for assisting understanding of the technical solutions and the core ideas thereof; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims

1. A display panel, comprising

A flexible substrate;

the back plate is arranged on one side surface of the flexible substrate;

the reinforcing ribs are arranged on the side face of the flexible substrate; and

and the driving chip is arranged on one side of the flexible substrate, which is far away from the reinforcing rib.

2. The display panel according to claim 1, further comprising

The back plate is arranged in the display area;

the reinforcing rib and the driving chip are arranged in the binding region; and

and one end of the bending area is connected to the display area side, and the other end of the bending area is connected to the binding area side.

3. The display panel according to claim 2, further comprising

And the polaroid is arranged in the display area and is arranged on one side of the flexible substrate, which is far away from the back plate.

4. The display panel according to claim 3, further comprising

The cover plate is arranged in the display area and is arranged on one side, far away from the flexible substrate, of the polarizer.

5. The display panel according to claim 1,

the material of the reinforcing rib comprises hard plastic.

6. The display panel according to claim 1,

the thickness of the reinforcing rib is 300-600 mu m.

7. The display panel according to claim 1,

the thickness of the back plate is the same as that of the reinforcing ribs.

8. The display panel according to claim 1,

the bending area comprises a bending central line, and one side of the bending area, which is close to the binding area, bends towards the direction of the back plate of the display area.

9. The display panel according to claim 8,

the drive chip is arranged in the middle of the binding area.

10. The display panel according to claim 1,

after the bending area is bent, a gap is reserved between the reinforcing rib and the back plate.