CN111768705A - Flexible display panel - Google Patents
Flexible display panel Download PDFInfo
- Publication number
- CN111768705A CN111768705A CN202010581027.XA CN202010581027A CN111768705A CN 111768705 A CN111768705 A CN 111768705A CN 202010581027 A CN202010581027 A CN 202010581027A CN 111768705 A CN111768705 A CN 111768705A
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- China
- Prior art keywords
- display panel
- support layer
- flexible
- flexible display
- flexible substrate
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses a flexible display panel, comprising: the flexible substrate comprises a display area and a bending area positioned on one side of the display area; the flexible substrate positioned in the bending area is bent towards one side far away from the light emitting surface of the flexible display panel, a first supporting layer is further arranged on one side, facing the inner side of the bending area, of the flexible substrate, a protruding structure is arranged on one side, close to the bending area, of the first supporting layer, and the protruding structure of the first supporting layer is in contact with a second supporting layer in the flexible substrate; wherein the raised structures of the first support layer support the inflection zones.
Description
Technical Field
The application relates to the technical field of displays, in particular to a flexible display panel.
Background
With the development of display technology, the narrow bezel and high screen ratio of the display panel has become a great trend.
The flexible OLED display technology is mature continuously, and the types of flexible display products are diversified continuously. Borderless display products have become the mainstream of the market, and the process requirements are higher and higher, wherein the panel bending technology becomes the key for determining the yield. In order to realize the narrow frame and high screen ratio of the display panel, the non-display area of the display panel needs to be bent towards the side opposite to the light-emitting surface. In the prior art, the panel bending process is to bend and attach the flexible OLED display panel region to the back of the display panel, so as to achieve the effect of full-screen display. However, in the prior art, the bending area cannot be kept in a fixed bending state, so that the metal wiring in the bending area is easy to break, and the reliability of the display panel is reduced.
Disclosure of Invention
In order to overcome the defects of the prior art, the embodiment of the application provides a flexible display panel, a special-shaped supporting layer structure is arranged inside a flexible substrate, and a supporting structure is formed at the round angle of the flexible display panel under the condition that the thickness of the whole flexible display panel is not influenced.
An embodiment of the present invention provides a flexible display panel, including:
the flexible substrate comprises a display area and a bending area positioned on one side of the display area;
the flexible substrate positioned in the bending area is bent towards one side far away from the light emitting surface of the flexible display panel, a first supporting layer is further arranged on one side, facing the inner side of the bending area, of the flexible substrate, a protruding structure is arranged on one side, close to the bending area, of the first supporting layer, and the protruding structure of the first supporting layer is in contact with a second supporting layer in the flexible substrate; wherein the raised structures of the first support layer support the inflection zones.
According to the flexible display panel provided by the embodiment of the invention, the first supporting layer is made of a thin plastic material and is adhered to the inner side of the flexible substrate.
According to the flexible display panel provided by the embodiment of the invention, the first supporting layer comprises a first part and a second part.
According to the flexible display panel provided by the embodiment of the invention, the thickness of the first part of the first supporting layer is 30 to 37 micrometers.
According to the flexible display panel provided by the embodiment of the invention, the length of the second part of the first supporting layer is 150 micrometers.
According to the flexible display panel provided by the embodiment of the invention, the second portion of the first support layer is 60 micrometers thicker than the first portion of the first support layer.
According to the flexible display panel provided by the embodiment of the invention, the cross section of the second part of the first support layer, which is perpendicular to the direction of the flexible substrate, is rectangular.
According to the flexible display panel provided by the embodiment of the invention, the shape of the cross section of the second part of the first support layer, which is perpendicular to the direction of the flexible substrate, is an isosceles trapezoid.
According to the flexible display panel provided by the embodiment of the invention, the flexible substrate is connected with the flexible circuit board through the COF.
According to the flexible display panel provided by the embodiment of the invention, the second support layer partially or completely abuts against the second part of the first support layer.
The invention has the beneficial effects that: according to the flexible display panel provided by the invention, the special-shaped supporting layer is arranged on the inner side of the flexible substrate, and the special-shaped supporting layer can provide a supporting effect for a round angle formed by the flexible substrate when the flexible substrate is bent on the basis of not influencing the flexible display panel, so that the risk that metal wires in a bending area are easy to break is reduced, and the yield of product manufacturing procedures 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 a schematic structural diagram of a flexible display panel according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a first supporting layer according to an embodiment of the present invention.
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.
As shown in fig. 1, an embodiment of the present invention provides a schematic structural diagram of a flexible display panel; fig. 2 is a schematic structural diagram of a first support layer according to an embodiment of the present invention. Referring to fig. 1 and 2, the flexible display panel includes:
the display device comprises a flexible substrate 1, wherein the flexible substrate 1 comprises a display area 10 and a bending area 20 positioned on one side of the display area 10; the flexible substrate 1 further comprises a glass substrate 100, a polyimide film layer 101, a copper metal layer 102, a first supporting layer 103 and a second supporting layer 104; be located bending zone 20 flexible substrate 1 is towards keeping away from one side bending of the play plain noodles of flexible substrate 1, first supporting layer 103 sets up flexible substrate 1 towards the inboard one side of bending zone 20, first supporting layer 103 is the thin plastics material of one deck, first supporting layer 103 is pasted flexible substrate 1 keeps away from the play plain noodles inboard. A part of the convex structures are arranged on one side of the first support layer 103 close to the bending region 20, and the convex structures of the first support layer 103 are in contact with the second support layer 104 inside the flexible substrate 1; wherein the convex structure of the first support layer 103 has a function of supporting the R corner of the bending region.
The flexible display panel generally includes a display area 10 and a non-display area, referring to fig. 1 and 2, wherein the left side of the dotted line is the display area 10 and the right side of the dotted line is the non-display area. In order to realize a narrow frame and a high screen ratio display of the display panel, the non-display area of the flexible display panel is usually bent toward a side away from the light emitting surface of the display panel. The flexible substrate 1 is connected to a flexible circuit board 106 via a COF 105. Optionally, a copper metal layer 102 is disposed on one side of the flexible substrate 1 in the bending region 20, the side being close to the light emitting surface of the flexible display panel. The bending region 20 is located in a non-display region, and is a region where the flexible substrate 1 and the copper metal layer 102 are bent and deformed. The flexible substrate 1 and the copper metal layer 102 on the side of the flexible substrate 1 close to the light-emitting surface of the flexible display panel in the bending region 20 are bent towards the side far away from the light-emitting surface of the flexible display panel. The first support layer 103 on the side of the flexible substrate 1 facing the inside of the bending zone comprises a first portion 1031 and a second portion 1032. As shown in fig. 2, the thickness of the first portion 1031 of the first support layer 103 is 30 to 37 micrometers, and the length of the second portion 1032 of the first support layer 103 is 150 micrometers. The second portion 1032 of the first support layer 103 is 60 microns thicker than the first portion 1031 of the first support layer 103. As shown in fig. 1, in the flexible display panel, the second portion 1032 of the first support layer 103 partially abuts against the second support layer 104. Optionally, the second portion 1032 of the first support layer 103 and the second support layer 104 may all abut against each other. The second support layer 104 also serves as a secondary support. When the thickness of the second portion 1032 of the first support layer 103 reaches more than 90 μm, the second portion 1032 of the first support layer 103 is sufficient to support the rounded corners of the bending region 20 after the flexible display panel is bent. When the flexible substrate 1 and the copper metal layer 102 disposed thereon are bent, the first support layer 103 is disposed in the display region 10 of the flexible substrate 1, and the second portion 1032 of the first support layer 103 is located at a boundary between the display region 10 and the bending region 20.
As shown in fig. 2, a cross-section of the second portion 1032 of the first support layer 103 perpendicular to the flexible substrate direction has a rectangular shape. Optionally, a cross section of the second portion 1032 of the first support layer 103 perpendicular to the flexible substrate direction has an isosceles trapezoid shape. The second portion 1032 of the first support layer 103 has a cross section perpendicular to the flexible substrate direction in the shape of a cylinder. That is, the second portion 1032 of the first support layer 103 may be provided in various shapes, and the second portion 1032 of the first support layer 103 and the second support layer 104 have a good supporting relationship. Moreover, on the basis of not changing the overall thickness of the flexible display panel, the first support layer 103 provided in this embodiment provides a supporting force for the rounded corner of the bending region by changing the thickness of the second portion 1032 of the first support layer 103, so as to avoid the risk of the copper metal layer breaking at the bending region.
According to the flexible display panel provided by the invention, the special-shaped supporting layer is arranged on the inner side of the flexible substrate, and the special-shaped supporting layer can provide a supporting effect for a round angle formed by the flexible substrate when the flexible substrate is bent on the basis of not influencing the flexible display panel, so that the risk that metal wires in a bending area are easy to break is reduced, and the yield of product manufacturing procedures is improved.
The foregoing describes in detail a flexible display panel provided in an embodiment of the present application, and a specific example is applied in the description to explain the principle and the implementation of the present application, and the description of the foregoing embodiment is only used to help understanding the technical solution and the core idea of the present application; 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 (10)
1. A flexible display panel, comprising:
the flexible substrate comprises a display area and a bending area positioned on one side of the display area;
the flexible substrate positioned in the bending area is bent towards one side far away from the light emitting surface of the flexible display panel, a first supporting layer is further arranged on one side, facing the inner side of the bending area, of the flexible substrate, a protruding structure is arranged on one side, close to the bending area, of the first supporting layer, and the protruding structure of the first supporting layer is in contact with a second supporting layer in the flexible substrate; wherein the raised structures of the first support layer support the inflection zones.
2. The flexible display panel of claim 1, wherein the first support layer is a thin plastic material, and the first support layer is adhered to the inner side of the flexible substrate.
3. The flexible display panel of claim 1, wherein the first support layer comprises a first portion and a second portion.
4. The flexible display panel of claim 3, wherein the first portion of the first support layer has a thickness of 30 to 37 microns.
5. The flexible display panel of claim 3, wherein the second portion of the first support layer is 150 microns in length.
6. The flexible display panel of claim 5, wherein the second portion of the first support layer is 60 microns thicker than the first portion of the first support layer.
7. The flexible display panel of claim 3, wherein a cross-section of the second portion of the first support layer perpendicular to the flexible substrate direction has a rectangular shape.
8. The flexible display panel of claim 3, wherein a cross-section of the second portion of the first support layer perpendicular to the flexible substrate direction has an isosceles trapezoid shape.
9. The flexible display panel according to claim 1, wherein the flexible substrate is connected to a flexible circuit board via a COF.
10. The flexible display panel of claim 1, wherein the second portion of the first support layer abuts or abuts entirely against the second support layer portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010581027.XA CN111768705A (en) | 2020-06-23 | 2020-06-23 | Flexible display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010581027.XA CN111768705A (en) | 2020-06-23 | 2020-06-23 | Flexible display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111768705A true CN111768705A (en) | 2020-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010581027.XA Pending CN111768705A (en) | 2020-06-23 | 2020-06-23 | Flexible display panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115083287A (en) * | 2022-07-08 | 2022-09-20 | 武汉华星光电半导体显示技术有限公司 | Display module and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160035759A1 (en) * | 2014-07-31 | 2016-02-04 | Lg Display Co., Ltd. | Flexible display device with wire having reinforced portion and manufacturing method for the same |
| CN109559639A (en) * | 2018-11-29 | 2019-04-02 | 昆山国显光电有限公司 | A kind of display panel and display device |
| KR20190060913A (en) * | 2017-11-24 | 2019-06-04 | 삼성디스플레이 주식회사 | Display apparatus and method of manufacturing the same |
| CN109994606A (en) * | 2019-03-27 | 2019-07-09 | 武汉华星光电半导体显示技术有限公司 | Flexible display panels |
-
2020
- 2020-06-23 CN CN202010581027.XA patent/CN111768705A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160035759A1 (en) * | 2014-07-31 | 2016-02-04 | Lg Display Co., Ltd. | Flexible display device with wire having reinforced portion and manufacturing method for the same |
| KR20190060913A (en) * | 2017-11-24 | 2019-06-04 | 삼성디스플레이 주식회사 | Display apparatus and method of manufacturing the same |
| CN109559639A (en) * | 2018-11-29 | 2019-04-02 | 昆山国显光电有限公司 | A kind of display panel and display device |
| CN109994606A (en) * | 2019-03-27 | 2019-07-09 | 武汉华星光电半导体显示技术有限公司 | Flexible display panels |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115083287A (en) * | 2022-07-08 | 2022-09-20 | 武汉华星光电半导体显示技术有限公司 | Display module and display device |
| CN115083287B (en) * | 2022-07-08 | 2023-08-22 | 武汉华星光电半导体显示技术有限公司 | Display module and display device |
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Application publication date: 20201013 |