CN111627331B - Display screen and display device - Google Patents
Display screen and display device Download PDFInfo
- Publication number
- CN111627331B CN111627331B CN202010419416.2A CN202010419416A CN111627331B CN 111627331 B CN111627331 B CN 111627331B CN 202010419416 A CN202010419416 A CN 202010419416A CN 111627331 B CN111627331 B CN 111627331B
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- metal
- display screen
- display
- side face
- metal wire
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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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0277—Bendability or stretchability details
- H05K1/028—Bending or folding regions of flexible printed circuits
Abstract
The invention provides a display screen and a display device, wherein the display screen comprises a display panel and a flexible substrate, the display panel comprises a plurality of adjacently arranged gaskets, the flexible substrate comprises a display part and a bent part, a plurality of bulges are arranged on the first surface of the bent part, at least one metal wire is arranged on the surface of each bulge, and each metal wire is electrically connected with the corresponding gasket; on one hand, when the bent part is bent, the metal wiring is attached to the surface of the protrusion to form a three-dimensional structure, so that the bending angle of the metal wiring is changed, the tensile stress on the metal wiring is reduced, and the connection stability of the display panel and the PCB is ensured; on the other hand, the length of the metal wire can be increased, so that when the metal wire is bent, the increased length can effectively compensate the increased length required by the metal wire due to stretching.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display screen and a display device.
Background
The existing display screen is continuously developed towards the direction of high screen ratio and high resolution, and the narrow frame (pad) design of the display screen has become a trend, for which, pad bending technology is commonly adopted in the industry to realize the narrow frame design.
As shown in fig. 1, a display screen in the prior art includes a display panel 1 and a flexible substrate 2, a plurality of metal wires (metal lines) 4 are disposed on the flexible substrate 100 for electrically connecting the display panel 1 and a Printed Circuit Board (PCB) Board 5, because a certain bending degree exists in a bending portion 22 of the flexible substrate 2, and because a surface of the bending portion 22 in the prior art is a flattened structure, when the metal wires 4 on the surface of the flexible substrate are correspondingly bent, the metal wires 4 are stretched and attached to the surface of the bending portion 22 and also have a two-dimensional linear structure, and when the metal wires 4 are subjected to an excessive bending stress, the metal wires 4 are easily broken, thereby affecting the connection stability between the display panel 1 and the PCB Board 4.
In summary, it is desirable to provide a new display panel and a new display device to solve the above technical problems.
Disclosure of Invention
The display screen and the display device provided by the invention solve the technical problem that the conventional display screen and display device are easy to break due to excessive bending stress because the surface of the bending part of the flexible substrate is of a flat structure, and the metal wiring on the surface of the flexible substrate is also of a two-dimensional linear structure when correspondingly bent.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
an embodiment of the present invention provides a display screen, including:
a display panel including a plurality of adjacently disposed spacers; and
the flexible substrate comprises a display part and a bending part, the display panel is located on the display part, a plurality of protrusions are arranged on the first surface of the bending part, at least one metal wire is distributed on the surface of each protrusion, and each metal wire is electrically connected with the corresponding gasket.
According to the display screen provided by the embodiment of the invention, the protrusion is in a triangular prism structure, and the triangular prism structure comprises a first side surface attached to the first surface of the bending part, and a second side surface and a third side surface which are respectively intersected with the first side surface of the triangular prism structure.
According to the display screen provided by the embodiment of the invention, the metal routing is arranged on the convex surface, and the metal routing is distributed on the second side surface and the third side surface in a winding manner.
According to the display screen provided by the embodiment of the invention, the two metal wires are arranged on the convex surface and are respectively positioned on the second side surface and the third side surface of the triangular prism structure.
According to the display screen provided by the embodiment of the invention, the bulge is of a semi-cylindrical structure, and the semi-cylindrical structure comprises a bottom surface attached to the first surface of the bulge and an arc surface intersected with the bottom surface.
According to the display screen provided by the embodiment of the invention, the metal routing lines are distributed on the cambered surface.
According to the display screen provided by the embodiment of the invention, the gasket comprises a first gasket and a second gasket which are adjacently arranged, the metal routing comprises a first metal routing and a second metal routing which are adjacently arranged, the first metal routing is electrically connected with the first gasket, the second metal routing is electrically connected with the second gasket, and the first metal routing and the second metal routing have different shapes.
According to the display screen provided by the embodiment of the invention, the shape of the first metal wire comprises one of a curve, a bent line and a wavy line, or a combination of two or more shapes.
According to the display screen provided by the embodiment of the invention, the shape of the second metal wire comprises one of a curve, a bent line and a wavy line, or a combination of two or more shapes.
The embodiment of the invention provides a display device which comprises the display screen.
The invention has the beneficial effects that: according to the display screen and the display device, the plurality of bulges are arranged on the bending part of the flexible substrate and positioned on the first surface of the flexible substrate, at least one metal wire is arranged on each bulge, and each metal wire is electrically connected with the corresponding gasket; on one hand, when the bent part is bent, the metal wiring is attached to the surface of the protrusion to form a three-dimensional structure, so that the bending angle of the metal wiring can be changed, the tensile stress on the metal wiring is reduced, and the connection stability of the display panel and the PCB is ensured; on the other hand, the length of the metal wire can be increased, so that when the metal wire is bent, the increased length can effectively compensate the increased length required by the metal wire due to stretching.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a prior art display screen;
fig. 2 is a schematic plan view of a first display screen according to an embodiment of the present invention;
fig. 3 is a schematic plan view of a second display screen according to an embodiment of the present invention;
fig. 4 is a schematic plan view of a third display screen according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of the bending portion in FIGS. 2 and 3;
fig. 6 is a schematic structural view of the bent portion in fig. 4.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], are only referring to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.
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.
Aiming at the display screen and the display device in the prior art, because the surface of the bending part of the flexible substrate is of a flattened structure, when the metal wire on the surface of the flexible substrate is correspondingly bent, the metal wire is also of a two-dimensional linear structure, and the wire is easily broken due to overlarge bending stress, and the defect can be overcome in the embodiment.
Fig. 2 is a schematic plan structure diagram of a first display screen provided in an embodiment of the present invention, and fig. 3 is a schematic plan structure diagram of a second display screen provided in an embodiment of the present invention, where the display screen provided in an embodiment of the present invention includes a display panel 1 and a flexible substrate 2; the display panel 1 comprises a plurality of adjacently arranged gaskets 11, the flexible substrate 2 comprises a display part 21 and a bending part 22, the area where the display part 21 is located can realize picture display, and the area where the bending part 22 is located is a frame area and is not used for picture display.
The display panel 1 is located on the display portion 21, the first surface 221 of the bending portion 22 is provided with a plurality of protrusions 3, at least one metal trace 4 is arranged on the surface of each protrusion 3, and each metal trace 4 is electrically connected to a corresponding pad 11 to transmit a signal from an integrated circuit chip to the display panel 1, wherein the shape of the protrusion 3 in fig. 2 and 3 is the same.
It can be understood that, in the embodiment of the present invention, the plurality of protrusions 3 are disposed on the first surface 221 of the bending portion 22, and on one hand, the protrusions 3 are of a three-dimensional structure, so that the metal trace 4 is in a three-dimensional structure when being attached to the first surface 221 of the protrusions 3, thereby changing a bending angle of the metal trace 4, reducing a tensile stress applied to the metal trace 4, and further ensuring stability of connection between the display panel 1 and the PCB; on the other hand, the protrusion 3 is of a three-dimensional structure, and the length of the metal wire 4 can be increased, so that when the metal wire 4 is bent, the increased length can effectively compensate for the increased length required by stretching.
As shown in fig. 5, which is a schematic structural view of the bent portion in fig. 2 and 3, in one embodiment, the protrusion 3 has a triangular prism structure including a first side surface 31 attached to the first surface 221 of the bent portion 22, and a second side surface 32 and a third side surface 33 respectively intersecting with the first side surface 31; preferably, the protrusions 3 may have a regular triangular prism structure, and the second side surface 32 and the third side surface 33 are symmetrical with respect to an intersection line of the two.
Referring to fig. 2 and 3 again, when the protrusion 3 is of the triangular prism structure, one metal trace 4 may be disposed on the surface of the protrusion 3, or two metal traces 4 may be disposed on the surface of the protrusion 3; when one metal wire 4 is arranged on the protrusion 3, the metal wire 4 is distributed on the second side surface 32 and the third side surface 33 in a winding manner; when the two metal traces 4 are disposed on the surface of the protrusion 3, the two metal traces 4 are respectively disposed on the second side surface 32 and the third side surface 33, so that the number of the metal traces 4 can be increased, the space can be effectively utilized, and accordingly, the number of the pads 11 disposed on the display panel 1 is also increased.
Of course, the number of the metal traces 4 disposed on the surface of each protrusion 3 is not limited to the embodiment of the present invention, and may be multiple, and particularly, the number should be set according to actual situations.
As shown in fig. 4, which is a schematic plan structure view of a third display screen provided in an embodiment of the present invention, and fig. 6 is a schematic structural view of the bending portion 22 in fig. 4, in another embodiment, the protrusion 3 is a semi-cylindrical structure, and the semi-cylindrical structure includes a bottom surface 34 attached to the first surface 221 of the bending portion 22 and an arc surface 35 intersecting with the bottom surface 34, where the metal trace 4 is distributed on the arc surface 35.
In the embodiment of the present invention, the pad 11 includes a first pad 111 and a second pad 112 disposed adjacent to each other, the metal trace 4 includes a first metal trace 41 and a second metal trace 42 disposed adjacent to each other, the first metal trace 41 is electrically connected to the first pad 111, and the second metal trace 42 is electrically connected to the second pad 112, where the first metal trace 41 and the second metal trace 42 have different shapes.
Specifically, the shape of the first metal trace 41 includes one of a curve, a bent line, and a wavy line, or a combination of two or more shapes.
Specifically, the shape of the second metal trace 42 includes one of a curve, a bent line and a wavy line, or a combination of two or more shapes.
In fig. 2 and 3, the shapes of the first metal trace 41 and the second metal trace 42 are both zigzag, but there is a difference in specific shape parameters, for example, the zigzag angle of the first metal trace 41 is greater than the zigzag angle of the second metal trace 42; in fig. 4, the first metal trace 41 and the second metal trace 42 are both curved, but the curvature of the first metal trace 41 is smaller than that of the second metal trace 42. It should be noted that, the specific shape of the first metal trace 41 and the second metal trace 42 can be determined according to specific needs, and is not limited.
The embodiment of the invention also provides a display device which comprises the display screen, wherein the display device can be a display device with a display function, such as a mobile phone, a computer, a vehicle-mounted display device and the like.
The beneficial effects are that: according to the display screen and the display device provided by the embodiment of the invention, the bent part of the flexible substrate is provided with the plurality of bulges, at least one metal wire is distributed on each bulge on the first surface of the flexible substrate, and each metal wire is electrically connected with the corresponding gasket; on one hand, when the bent part is bent, the metal wiring is attached to the surface of the protrusion to form a three-dimensional structure, so that the bending angle of the metal wiring is changed, the tensile stress on the metal wiring is reduced, and the connection stability of the display panel and the PCB is further ensured; on the other hand, the length of the metal wire can be increased, so that when the metal wire is bent, the increased length can effectively compensate the increased length required by the metal wire due to stretching.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (5)
1. A display screen, comprising:
a display panel including a plurality of adjacently disposed spacers; and
the flexible substrate comprises a display part and a bending part, the display panel is positioned on the display part, a plurality of bulges are arranged on the first surface of the bending part, at least one metal wire is arranged on the surface of each bulge, and each metal wire is electrically connected with the corresponding gasket;
the protrusion is of a triangular prism structure, the triangular prism structure comprises a first side face, a second side face and a third side face, the first side face is attached to the first surface of the bending portion, the second side face and the third side face are intersected with the first side face, and each metal wiring is distributed on the second side face and the third side face of the triangular prism structure in a winding mode.
2. The display screen of claim 1, wherein the pads comprise first and second pads disposed adjacent to each other, wherein the metal traces comprise first and second metal traces disposed adjacent to each other, wherein the first metal trace is electrically connected to the first pad, wherein the second metal trace is electrically connected to the second pad, and wherein the first and second metal traces have different shapes.
3. The display screen of claim 2, wherein the shape of the first metal trace comprises one of a curve, a bend line, and a wavy line, or a combination of two or more numbers of shapes.
4. The display screen of claim 2, wherein the shape of the second metal trace comprises one of a curve, a bend line, and a wavy line, or a combination of two or more of the shapes.
5. A display device comprising the display screen according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010419416.2A CN111627331B (en) | 2020-05-18 | 2020-05-18 | Display screen and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010419416.2A CN111627331B (en) | 2020-05-18 | 2020-05-18 | Display screen and display device |
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| Publication Number | Publication Date |
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| CN111627331A CN111627331A (en) | 2020-09-04 |
| CN111627331B true CN111627331B (en) | 2022-04-08 |
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| CN202010419416.2A Active CN111627331B (en) | 2020-05-18 | 2020-05-18 | Display screen and display device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112702835B (en) * | 2020-12-25 | 2022-02-25 | 浙江荷清柔性电子技术有限公司 | Flexible circuit board packaging method and flexible circuit board |
| CN114333583A (en) * | 2021-12-27 | 2022-04-12 | 昆山国显光电有限公司 | Display module and display device |
| CN115019649A (en) * | 2022-06-07 | 2022-09-06 | 武汉华星光电半导体显示技术有限公司 | Display panel and electronic terminal |
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| CN105144270A (en) * | 2013-02-01 | 2015-12-09 | 乐金显示有限公司 | Flexible display substrate, flexible organic light emitting display device and method of manufacturing the same |
| CN105845702A (en) * | 2015-02-04 | 2016-08-10 | 三星显示有限公司 | Flexible display substrate, manufacturing method thereof, and flexible display device having the same |
| CN108231800A (en) * | 2018-02-02 | 2018-06-29 | 京东方科技集团股份有限公司 | A kind of flexible display panels and preparation method thereof, display device |
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| CN111627331A (en) | 2020-09-04 |
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