CN114387884A - Flexible display screen and display device - Google Patents
Flexible display screen and display device Download PDFInfo
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- CN114387884A CN114387884A CN202210019501.9A CN202210019501A CN114387884A CN 114387884 A CN114387884 A CN 114387884A CN 202210019501 A CN202210019501 A CN 202210019501A CN 114387884 A CN114387884 A CN 114387884A
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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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- 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
- G09F9/33—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 being semiconductor devices, e.g. diodes
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Abstract
The application provides a flexible display screen and display device, flexible display screen includes: a display panel; the conducting wire is arranged on the display panel; the wire comprises a first wire end, a second wire end and at least two branch wire sections, the branch wire sections are connected with the first wire end and the second wire end, and the branch wire sections extend in a wavy manner; the number of the conducting wires is multiple, and the conducting wires are arranged on the display panel side by side; a shared wiring area is arranged between every two adjacent wires, and the branch section wave crest of any wire and the branch section wave trough of the adjacent wire are both positioned in the shared wiring area. The flexible display screen provided by the embodiment of the application can prolong the service life of the lead. In addition, a common wiring area is formed between two adjacent wires, and the peak of the branch section of one wire and the valley of the branch section of the adjacent wire are both arranged in the common wiring area, so that the total occupied area of a plurality of wires on the display panel can be reduced, and the space utilization rate of the display panel is improved.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a flexible display screen and a display device.
Background
Organic light-emitting diodes (OLEDs) are considered to be one of the most promising display technologies due to their characteristics of high brightness, wide viewing angle, low power consumption, and wide operating temperature. As a fully cured display device, one of the greatest advantages of the OLED device is to enable flexible display, making foldable electronic newspapers, rollable wall televisions, wearable displays, and the like, to embody the charm of organic semiconductors.
In practical application, a plurality of circuits are contained in the thin film transistor backboard of the OLED device, and different circuits are connected through a lead. However, for the OLED devices such as foldable electronic newspapers, foldable wall televisions and wearable displays, the wires also need to be bent at the portions that need to be folded. Although the wire itself has a certain ductility, the folding time or the folding times are too long, which may cause the wire to crack, and once the wire is broken, the normal use of the whole OLED device may be affected.
Disclosure of Invention
The embodiment of the application provides a flexible display screen and a display device, and aims to solve the problem that a wire of an existing flexible display screen is easy to break.
In a first aspect, an embodiment of the present application provides a flexible display screen, where the flexible display screen includes:
a display panel;
the conducting wire is arranged on the display panel; the wire comprises a first wire end, a second wire end and at least two branch wire sections, wherein the branch wire sections are connected with the first wire end and the second wire end and extend in a wavy manner; the number of the conducting wires is multiple, and the conducting wires are arranged on the display panel side by side; a common wiring area is arranged between every two adjacent wires, and the branch section wave crest of any one wire and the branch section wave trough of the adjacent wire are both positioned in the common wiring area.
Optionally, a plurality of branch segment peaks of any one of the conductive wires and a plurality of branch segment troughs of an adjacent one of the conductive wires are located in the common routing region.
Optionally, the distance between the crest and the trough of the branch section in the same common routing region is greater than or equal to 1 μm.
Optionally, the width of the branch line segment is greater than or equal to 2.5 μm.
Optionally, the wire is made of metal or metal oxide.
Optionally, the width of each branch line segment is the same.
Optionally, the sum of the widths of the plurality of branch line segments of any one of the conductive lines is equal to the width of the first line end or the second line end of the conductive line.
Optionally, the width of the common trace area between two adjacent wires is smaller than the distance between the wire ends of the two wires.
Optionally, the branch line segments extend in a sine curve or a cosine curve, and a plurality of branch line segments extend in parallel in the same shape.
In a second aspect, embodiments of the present application further provide a display device, which includes the flexible display screen as described above.
According to the flexible display screen provided by the embodiment of the application, each conducting wire on the display panel is provided with a plurality of branch line segments, and the branch line segments extend in a wavy manner; thus, the ductility of each branch line segment can be improved, the bending resistance of the whole lead can be improved, and the service life of the lead can be prolonged. The branch line section is set to be wavy, stress borne by the branch line section during bending can be reduced, and therefore structural stability of the branch line section is improved. In addition, a common wiring area is formed between two adjacent wires, and the peak of the branch section of one wire and the valley of the branch section of the adjacent wire are both arranged in the common wiring area, so that the total occupied area of a plurality of wires on the display panel can be reduced, and the space utilization rate of the display panel is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.
For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.
Fig. 1 is a schematic plan view of a wire in a flexible display screen according to an embodiment of the present disclosure.
Fig. 2 is a schematic plan view of a wire in a flexible display screen according to another embodiment of the present application.
Fig. 3 is a schematic distribution diagram of wires in a flexible display screen according to an embodiment of the present application.
Fig. 4 is a schematic distribution diagram of wires in a flexible display screen according to another embodiment of the present application.
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.
The embodiment of the application provides a flexible display screen and a display device, which are used for solving the problem that the existing flexible display screen wire 100 is easy to break. Which will be described below with reference to the accompanying drawings.
The flexible display screen provided by the embodiment of the application can be applied to the preparation of a display device, for example, please refer to fig. 1, fig. 2, fig. 3 and fig. 4. Fig. 1 is a schematic plan view of a wire 100 in a flexible display screen according to an embodiment of the present disclosure. Fig. 2 is a schematic plan view of a wire 100 in a flexible display screen according to another embodiment of the present application. Fig. 3 is a schematic distribution diagram of the wires 100 in the flexible display screen according to an embodiment of the present disclosure. Fig. 4 is a schematic distribution diagram of the wires 100 in the flexible display screen according to another embodiment of the present application.
The flexible display screen comprises a display panel and a wire 100, wherein the wire 100 is arranged on the display panel. The display panel comprises a thin film transistor array substrate and a color film substrate, wherein the thin film transistor array substrate comprises a plurality of circuits, and the different circuits are connected through a lead 100. The thin film transistor array substrate and the color film substrate are both flexible substrates so as to realize flexible folding of the flexible display screen. When the flexible display screen is bent, the wire 100 is also bent.
The lead 100 comprises a first terminal 10, a second terminal 20 and at least two branch line segments 30, wherein the branch line segments 30 connect the first terminal 10 and the second terminal 20, and the branch line segments 30 extend in a wave shape; the number of the conducting wires 100 is multiple, and the conducting wires 100 are arranged on the display panel side by side; a common trace area 40 is provided between two adjacent wires 100, and the peak of the branch segment 30 of any one of the wires 100 and the valley of the branch segment 30 of an adjacent one of the wires 100 are located in the common trace area 40.
The first line terminal 10 and the second line terminal 20 are used to connect to functional circuits on the display panel, respectively. The number of branch segments 30 per conductor 100 may be two, or may be three or more. The branch segments 30 in each conductor 100 are arranged in parallel. The branch line segment 30 extends in a wavy manner, and may be in the shape of a cosine curve or a sine curve. The plurality of branch line segments 30 in each conductive line 100 extend in parallel in the same shape to shorten the distance between adjacent branch line segments 30 as much as possible, thereby reducing the occupied space of the branch line segments 30 on the display panel. The branch line segments 30 extending in a wavy manner form at least one peak and one valley, which protrude from both sides of the first line end 10 and the second line end 20, respectively.
The plurality of wires 100 extend in parallel along the length direction or the width direction of the display panel, and a common trace area 40 is formed between two adjacent wires 100. For example, the plurality of conductive lines 100 includes a first conductive line 100 and a second conductive line 100 that are adjacent to each other, a common trace region 40 is formed between the first conductive line 100 and the second conductive line 100, and both a peak of a branch segment 30 of the second conductive line 100 and a valley of a branch segment 30 of the second conductive line 100 are located in the common trace region 40; it is also possible that the valleys of the branch segments 30 of the first conductive wire 100 and the peaks of the branch segments 30 of the second conductive wire 100 are located in the common trace region 40, and the details are not limited thereto. It is only necessary that the troughs of the branch segments 30 of one and the crests of the branch segments 30 of the other of the two adjacent wires 100 are located in the common trace region 40 between the two wires 100.
It is understood that the peaks of the branch segments 30 and the valleys of the branch segments 30 in the same routing area should have a certain distance therebetween to prevent the adjacent two wires 100 from contacting each other and causing short circuit. Specifically, the distance between the peak of the branch line segment 30 and the trough of the branch line segment 30 in the same common trace region 40 is greater than or equal to 1 μm, so as to minimize the distance between two sets of branch line segments 30 while preventing the two wires 100 from short-circuiting, thereby reducing the occupied space of the wires 100 on the display panel.
Illustratively, the peaks of the branch segments 30 of any one of the conductive wires 100 and the valleys of the branch segments 30 of an adjacent one of the conductive wires 100 are located in the common trace area 40. Taking the first conductive wire 100 and the second conductive wire 100 as an example, a plurality of wave troughs are formed on the plurality of branch wire segments 30 of the first conductive wire 100, and all of the wave troughs are located in the common trace area 40; the plurality of branch line segments 30 of the second conductive line 100 form a plurality of peaks, and the plurality of peaks are located in the common trace area 40. Thus, the distance between two adjacent wires 100 can be further shortened, so as to further improve the space utilization rate on the display panel.
Illustratively, the width of the common trace area 40 between two adjacent wires 100 is smaller than the pitch between the wire ends of two adjacent wires 100. Taking the first conductive line 100 and the second conductive line 100 as an example, the distance between the line end of the first trace and the line end of the second trace is greater than the width of the common trace region 40; in this way, the wave crest or the wave trough of the branch line segment 30 of one of the conductive lines 100 in the common trace area 40 can be prevented from contacting the line end of the other conductive line 100, so as to effectively prevent the first conductive line 100 from contacting and shorting with the second conductive line 100.
Illustratively, the branch line segments 30 have a width greater than or equal to 2.5 μm to ensure sufficient structural strength while increasing ductility. The lead 100 is made of metal or metal oxide, so that the lead 100 can be manufactured by etching, and the manufacturing process is simplified.
Illustratively, the branch segments 30 have the same width to provide more uniform ductility and bending resistance of the branch segments 30. The sum of the widths of the branch line segments 30 of any one of the conducting lines 100 is equal to the width of the first line end 10 or the second line end 20 of the conducting line 100; that is, the middle portion of one wire 100 can be evenly divided into a plurality of branch wire segments 30, and the left and right ends of the wire 100 are the first wire end 10 and the second wire end 20, respectively.
In the flexible display screen provided by the embodiment of the application, each conducting wire 100 on the display panel is provided with a plurality of branch line segments 30, and the plurality of branch line segments 30 extend in a wavy manner; thus, the ductility of each branch line segment 30 can be improved to improve the bending resistance of the whole lead 100, so that the service life of the lead 100 can be prolonged; and the influence on the wire resistance is reduced, so that the display brightness of the flexible display screen is ensured. The branch line segment 30 is set in a wavy shape, which can reduce the stress applied to the branch line segment 30 when bending, thereby improving the structural stability of the branch line segment 30. In addition, a common trace region 40 is formed between two adjacent wires 100, and the peak of the branch segment 30 of one wire 100 and the valley of the branch segment 30 of an adjacent wire 100 are both disposed in the common trace region 40, so that the total occupied area of a plurality of wires 100 on the display panel can be reduced, and the space utilization rate of the display panel can be improved.
Further, another aspect of the embodiments of the present application further provides a display device, including the flexible display screen. The display device can be specifically used for products or components with any display function, such as a display, a television, a mobile phone, a tablet computer, a navigator, a digital photo frame, a wearable display product (such as a smart watch) and the like. For example, when the flexible display screen is a liquid crystal panel, the display device may further include a backlight module for providing backlight, and the specific structure may refer to related technologies, which is not described herein again in this embodiment of the present application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. The flexible display screen provided by the embodiment of the present application is described in detail above, and the principle and the implementation of the present application are explained in the present application by applying a specific example, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A flexible display screen, comprising:
a display panel;
the conducting wire is arranged on the display panel; the wire comprises a first wire end, a second wire end and at least two branch wire sections, wherein the branch wire sections are connected with the first wire end and the second wire end and extend in a wavy manner; the number of the conducting wires is multiple, and the conducting wires are arranged on the display panel side by side; a common wiring area is arranged between every two adjacent wires, and the branch section wave crest of any one wire and the branch section wave trough of the adjacent wire are both positioned in the common wiring area.
2. The flexible display screen of claim 1, wherein a plurality of branch segment peaks of any one of the wires and a plurality of branch segment valleys of an adjacent one of the wires are located within the common routing area.
3. The flexible display screen of claim 2, wherein the distance between a peak and a trough of a branch segment in the same common routing area is greater than or equal to 1 μm.
4. A flexible display screen according to any one of claims 1 to 3 wherein the width of the branch line segment is greater than or equal to 2.5 μm.
5. The flexible display screen of any one of claims 1 to 3, wherein the wires are made of metal or metal oxide.
6. The flexible display of claim 1, wherein the branch line segments have the same width.
7. The flexible display screen of claim 1, wherein the sum of the widths of the plurality of branch segments of any one of the conductive lines is equal to the width of the first end or the second end of the conductive line.
8. The flexible display screen of claim 1, wherein the width of the common trace area between two adjacent wires is smaller than the distance between the wire ends of the two wires.
9. The flexible display of claim 1, wherein the branch line segments extend in a sinusoidal or cosine curve, and a plurality of the branch line segments extend in parallel in the same shape.
10. A display device characterized by comprising a flexible display screen according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210019501.9A CN114387884A (en) | 2022-01-10 | 2022-01-10 | Flexible display screen and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210019501.9A CN114387884A (en) | 2022-01-10 | 2022-01-10 | Flexible display screen and display device |
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| Publication Number | Publication Date |
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| CN114387884A true CN114387884A (en) | 2022-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210019501.9A Pending CN114387884A (en) | 2022-01-10 | 2022-01-10 | Flexible display screen and display device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209447443U (en) * | 2019-02-21 | 2019-09-27 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display device |
| CN110379937A (en) * | 2019-07-25 | 2019-10-25 | 云谷（固安）科技有限公司 | Flexible display panels and preparation method thereof, flexible display apparatus |
| CN210167358U (en) * | 2019-07-19 | 2020-03-20 | 昆山国显光电有限公司 | Flexible display device |
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- 2022-01-10 CN CN202210019501.9A patent/CN114387884A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209447443U (en) * | 2019-02-21 | 2019-09-27 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display device |
| CN210167358U (en) * | 2019-07-19 | 2020-03-20 | 昆山国显光电有限公司 | Flexible display device |
| CN110379937A (en) * | 2019-07-25 | 2019-10-25 | 云谷（固安）科技有限公司 | Flexible display panels and preparation method thereof, flexible display apparatus |
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