WO2018120138A1

WO2018120138A1 - Display panel

Info

Publication number: WO2018120138A1
Application number: PCT/CN2016/113771
Authority: WO
Inventors: 袁泽; 赵继刚
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2018-07-05
Also published as: KR20190032596A; CN108064405A; JP2019533200A

Abstract

A display panel (10) comprises a display region (12) and a lead wire region (14) for the connecting the display region (12). A lead wire (142) used for connecting the display region (12) and an external circuit (20) is formed in the lead wire region (14). The lead wire region (14) is bent around a bent shaft to form a bent region (144). The lead wire (142) crosses with the bent shaft and straightly stretches over the bent region (144). In the display panel (10), the lead wire region (14) can be bent around the bent shaft to the back surface of the display region (12), so as to reduce the size of the border of the display panel (10) and increase the proportion of the display region (12) relative to the display panel (10). In addition, because the lead wire (142) straightly stretches over the bent region (144), lateral stress on the lead wire (142) generated when the lead wire (142) is bent around the bent shaft can be reduced, thereby reducing the failure probability of the lead wire (142) in a bent state.

Description

Display panel

Technical field

The present invention relates to the field of display technologies, and in particular, to a display panel.

Background technique

In the related art, a display panel includes a display area and a lead area connecting the display areas, and the lead area is formed with leads connecting the display area and an external control circuit. In order to increase the proportion of the display area relative to the display panel, the lead area is generally bent. However, the current lead arrangement is unreasonable, and the lead wire may be arranged to extend along the bending axis, causing the lead to be laterally stressed, which may easily lead to poor lead.

Summary of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention is required to provide a display panel.

A display panel according to an embodiment of the present invention includes:

Display area; and

Connecting a lead region of the display region, the lead region being formed with a lead for connecting the display region and an external circuit, the lead region being bent around a bending axis to form a bent region, the lead and the bend The axes intersect and line straight across the bend area.

In the display panel of the embodiment of the invention, the lead region can be bent around the bending axis to the display area The back side, thereby reducing the frame of the display panel, increasing the proportion of the display area relative to the display panel, and, since the lead line linearly straddles the bend area, the side of the lead that is bent when bending around the bend axis can be reduced To the stress, reduce the probability of the lead appearing bad in the bent state.

In some embodiments, the display panel comprises a flexible display panel.

In certain embodiments, the display panel comprises a flexible OLED.

In some embodiments, the display panel and the lead area are flat when the display panel is rectangular;

The display area is rectangular and includes a first connecting edge and a second connecting edge that are vertically connected;

The lead region is connected to the first connecting side and the second connecting side.

In certain embodiments, the leads comprise at least one bundle of leads, the same length of the leads being the same.

In some embodiments, the leads of the same bundle include:

a first straight line segment connected to the display area and arranged in parallel;

a diagonal line segment connected to the first straight line segment and arranged in a triangular shape;

a line segment connected to the oblique line segment and linearly across the bend region; and

a second straight line segment connected to the fold line segment and arranged in parallel, the width of the plurality of the first straight line segments being greater than the width of the plurality of the second straight line segments.

In some embodiments, the fold line segments straddle the bend region a plurality of times.

In some embodiments, the number of times the plurality of fold line segments span the bend region is equal.

In some embodiments, the angle between the lead and the bending axis ranges from 60° to 120°.

In some embodiments, the lead is perpendicular to the bend axis.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the appended claims

1 is a schematic structural view of a display panel according to an embodiment of the present invention.

2 is a schematic view showing the structure of a lead wire according to an embodiment of the present invention.

3 is a schematic structural view of a display panel according to another embodiment of the present invention.

4 is a schematic structural view of a display panel according to still another embodiment of the present invention.

Description of main components and symbols:

Display panel 10, display area 12, first connecting side 122, second connecting side 124, lead area 14, lead 142, first straight section 1422, diagonal section 1424, broken line section 1426, second straight section 1428, bending area 144;

External circuit 20, circuit board 22, drive chip 24, GOA unit 26.

detailed description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, The same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are intended to be illustrative of the embodiments of the invention and are not to be construed as limiting.

In the description of the embodiments of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "previous" "," "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the embodiments and the simplified description of the present invention, and does not indicate or imply that the device or component referred to has a specific orientation, The orientation configuration and operation are therefore not to be construed as limiting the embodiments of the invention. Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include one or more of the described features either explicitly or implicitly. In the description of the embodiments of the present invention, the meaning of "a plurality" is two or more unless specifically defined otherwise.

In the description of the embodiments of the present invention, it should be noted that the terms "installation", "connection", and "connection" should be understood broadly, and may be fixed connection, for example, or Removable connection, or integral connection; can be mechanical connection, electrical connection or communication with each other; can be direct connection or indirect connection through intermediate medium, can be internal connection of two components or two components Interaction relationship. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood on a case-by-case basis.

In the embodiments of the present invention, the "on" or "below" of the second feature may include direct contact of the first and second features, and may also include the first sum, unless otherwise specifically defined and defined. The second feature is not in direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of embodiments of the present invention. In order to simplify the disclosure of embodiments of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the invention. In addition, the embodiments of the present invention may repeat reference numerals and/or reference letters in different examples, which are for the purpose of simplicity and clarity, and do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. . Moreover, embodiments of the present invention provide examples of various specific processes and materials, but one of ordinary skill in the art will recognize the use of other processes and/or the use of other materials.

Referring to FIGS. 1 and 2 , the display panel 10 of the embodiment of the present invention includes a display area 12 and a lead area 14 connecting the display areas 12 . The lead region 14 is formed with leads 142 for connecting the display region 12 with the external circuit 20. The lead region 14 is bent around the bend axis to form a bend region 144. Lead 142 intersects the bend axis and traverses the bend region 144 in a straight line.

In the display panel 10 of the embodiment of the present invention, the lead region 14 can be bent around the bending axis to the display The back side of the area 12 is shown, thereby reducing the frame of the display panel 10, increasing the proportion of the display area 12 relative to the display panel 10, and since the lead 142 is linearly traversing the bent area 144, the lead 142 can be reduced in the wrap The lateral stress experienced when the bending axis is bent reduces the probability that the lead 142 will be defective in the bent state.

It will be appreciated that display area 12 may include a plurality of display pixels that are driven or controlled by external circuitry 20 coupled to display area 12. Leads 142 are used to transfer signals between display area 12 and external circuitry 20. The display panel 10 can include an external circuit 20.

Referring again to FIG. 1, in one example, the external circuit 20 includes a circuit board 22 and a driver chip 24 disposed on the circuit board 22. Lead 142 connects display area 12 to circuit board 22.

Referring to FIG. 3, in another example, the external circuit 20 includes a driver chip 24. The lead 142 connects the display area 12 with the driving chip 24.

Specifically, the driving chip 24 may be a gate driving chip and an SD (drain/source) driving chip.

Referring to FIG. 4 , in some embodiments, the display panel 10 includes a GOA (Gate Driver on Array) unit 26 disposed on both sides of the display area 12 . The external circuit 20 is connected to the GOA unit 26.

In some embodiments, display panel 10 includes a flexible display panel.

When the display panel 10 is a flexible display panel, the display panel 10 may further include a flexible substrate, such that the lead 142 may be bent by bending the substrate of the lead region 14 to achieve the display panel 10 The control of the border size maximizes the proportion of the display area 12 relative to the display panel 10.

In some embodiments, the display panel 10 includes a flexible OLED (Organic Light-Emitting Diode).

In particular, flexible OLEDs have the advantage of low power consumption and flexibility.

In some embodiments, display panel 10 is rectangular when display area 12 and lead area 14 are flat. The display area 12 is rectangular and includes a first connecting side 122 and a second connecting side 124 that are vertically connected. The lead region 14 is connected to the first connecting side 122 and the second connecting side 124.

As such, the external circuit 20 can be driven or controlled by the lead 142 to display the display area 12.

In some embodiments, the lead 142 includes at least one bundle of leads 142, the same bundle of leads 142 having the same length.

Specifically, taking FIG. 3 as an example, the display panel 10 of FIG. 3 includes 6 bundles of leads 142, wherein the 3 bundles of leads 142 are connected to the first connection side 122 of the display area 12, and the other 3 sets of leads 142 are connected to the second of the display area 12. Connecting edge 124. The lengths of the plurality of leads 142 in each bundle of leads 142 are equal. Corresponding to the 6-beam lead 142, the external circuit 20 includes three lateral circuit boards 22 and a driving chip 24 disposed on the circuit board 22, and three longitudinal driving chips 24.

Since the leads 142 are used to transfer signals between the display area 12 and the external circuit 20, in order to ensure synchronization of signal transmission, preferably, the threads of each of the leads 142 of the same bundle of leads 142 are identical, that is, the length is the same.

Referring again to FIG. 2, in some embodiments, the same bundle of leads 142 includes a first straight segment 1422, a diagonal line segment 1424, a broken line segment 1426, and a second straight line segment 1428. The first straight line segment 1422 is connected to the display area 12 and arranged in parallel. The diagonal segment 1424 is coupled to the first straight segment 1422 and is arranged in a triangular shape. The fold line segment 1426 is coupled to the diagonal line segment 1424 and extends straight across the bend region 144. One end of the second straight line segment 1428 is connected to the fold line segment 1426 and arranged in parallel. The other end of the second straight line segment 1428 is connected to the external circuit 20. The width d1 of the plurality of first straight segments 1422 is greater than the width d2 of the plurality of second straight segments 1428.

As such, the leads 142 can be gradually gathered and contracted to be connected to the external circuit 20, reducing the space occupied. Moreover, the fold line segment 1426 linearly straddles the bend region 144 to avoid corners in the bend region 144 and to reduce the probability of defects of the lead 142 of the bend region 144 after bending.

It can be understood that since the corners 144 of the embodiment of the present invention do not have corners and lead wires 142 arranged in the lateral direction, the entire bending region 144 can be provided with a lateral bending axis.

In some embodiments, the fold line segment 1426 straddles the bend region 144 a plurality of times.

As such, the leads 142 are folded multiple times to facilitate receiving the leads 142 and reducing the longitudinal extent of the lead regions 14. The number of times the fold line segment 1426 specifically traverses the bend region 144 can be designed to match the length of the lead 142.

In some embodiments, the plurality of fold line segments 1426 are equal across the bend region 144.

For example, in the example of FIG. 2, all of the leads 142 span the bend region 144 three times, that is, wrap twice to form a three-segment line segment. Thus, the lateral width of each of the fold line segments 1426 is uniform or the distance between the adjacent two fold line segments 1426 is equal, facilitating the arrangement of the leads 142 when the display panel 10 is manufactured.

The arrangement of the lead wires 142 of the embodiment of the present invention can balance the length of each lead wire 142 without increasing the complexity of the design and the integration difficulty of the process, thereby ensuring uniform load.

It should be noted that the structure of the lead 142 as shown in FIG. 2 is only one design of the lead 142. In other embodiments, the lead 142 may also be in other bent and arranged forms as needed.

In some embodiments, the angle between the lead 142 and the bend axis ranges from 60° to 120°.

When the lead 142 is bent along the bending axis, the lead 142 is subjected to a stress perpendicular to the bending axis and from both sides in the bending axial direction. When the angle between the lead 142 and the bending axis ranges from 60° to 120°, the lateral stress of the lead 142 is less when bent, and the main component of the stress is parallel to the direction of the wire, thus The effect of the wire is small.

In some embodiments, the lead 142 is perpendicular to the bend axis.

As above, when the lead wire 142 is bent along the bending axis, the lead wire 142 is subjected to a stress perpendicular to the bending axis and from both sides in the bending axial direction. In the embodiment of the present invention, the lead 142 is perpendicular to the bending axis, that is, the direction of the stress is parallel to the lead 142. Thus, the lead 142 is subjected to a lateral stress of zero. In this way, the probability of the lead 142 being defective in the bent state can be greatly reduced.

The display area 12 of the embodiment of the present invention is not limited to being rectangular. When the display area 12 is non-rectangular, for example, the display area 12 is circular or parallelogram, etc., the arrangement of the leads 142 can also adopt the same design method, and then connected. To the output of display area 12.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples", etc. Way or example The specific features, structures, materials, or characteristics described are included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

Any process or method description in the flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a particular logical function or process. And the scope of the preferred embodiments of the invention includes additional implementations, in which the functions may be performed in a substantially simultaneous manner or in an opposite order depending on the functions involved, in the order shown or discussed. It will be understood by those skilled in the art to which the embodiments of the present invention pertain.

The logic and/or steps represented in the flowchart or otherwise described herein, for example, may be considered as an ordered list of executable instructions for implementing logical functions, and may be embodied in any computer readable medium, Used in conjunction with, or in conjunction with, an instruction execution system, apparatus, or device (eg, a computer-based system, a system including a processing module, or other system that can fetch instructions and execute instructions from an instruction execution system, apparatus, or device) Or use with equipment. For the purposes of this specification, a "computer-readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or device, or in conjunction with the instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections (IPM overcurrent protection circuits) with one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM). In addition, the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, other suitable The method is processed to obtain the program electronically and then stored in computer memory.

It should be understood that portions of the embodiments of the invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

One of ordinary skill in the art can understand that all or part of the steps carried by the method of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. The integrated module is implemented as a software functional module and as a standalone product It can also be stored on a computer readable storage medium when it is sold or used.

The above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. Implementations are subject to change, modification, substitution, and variation.

Claims

A display panel, comprising:

Display area; and

Connecting a lead region of the display region, the lead region being formed with a lead for connecting the display region and an external circuit, the lead region being bent around a bending axis to form a bent region, the lead and the bend The axes intersect and line straight across the bend area.
The display panel of claim 1, wherein the display panel comprises a flexible display panel.
The display panel of claim 1 wherein the display panel comprises a flexible OLED.
The display panel according to claim 1, wherein the display panel is rectangular when the display area and the lead area are flat;

The display area is rectangular and includes a first connecting edge and a second connecting edge that are vertically connected;

The lead region is connected to the first connecting side and the second connecting side.
The display panel of claim 1 wherein said lead comprises at least one beam lead The length of the leads of the same bundle is the same.
A display panel according to claim 5, wherein said leads of the same bundle comprise:

a first straight line segment connected to the display area and arranged in parallel;

a diagonal line segment connected to the first straight line segment and arranged in a triangular shape;

a line segment connected to the oblique line segment and linearly across the bend region; and

a second straight line segment connected to the fold line segment and arranged in parallel, the width of the plurality of the first straight line segments being greater than the width of the plurality of the second straight line segments.
The display panel according to claim 6, wherein the fold line segment straddles the bent region a plurality of times.
The display panel according to claim 6, wherein a plurality of said fold line segments are equal to each other across said bent region.
The display panel according to claim 1, wherein an angle between said lead wire and said bending axis ranges from 60° to 120°.
The display panel according to claim 1, wherein said lead wire is perpendicular to said bending axis.