CN108064405A - Display panel - Google Patents

Abstract

A kind of display panel (10), the lead areas (14) including display area (12) and connection display area (12).Lead areas (14) is formed with to connect the lead (142) of display area (12) and external circuit (20).Lead areas (14) is bent to form bending region (144) around bending axis.Lead (142) intersects with bending axis and straight line is across bending region (144).In display panel (10), lead areas (14) can be bent to the back side of display area (12) around bending axis, so as to reduce the frame of display panel (10), improve the accounting of display area (12) compared with display panel (10), and, since lead (142) straight line is across bending region (144), lead (142) lateral stress suffered when being bent around bending axis can thus be reduced, lead (142) is reduced and occur undesirable probability under bending state.

Description

display panel

technical field

The present invention relates to the field of display technology, 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 area, 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 layout of the lead wires is unreasonable, and the lead wires may be extended and arranged along the bending axis, resulting in lateral force on the leads, which easily leads to defective leads.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention needs to provide a display panel.

A display panel according to an embodiment of the present invention is characterized by comprising:

the display area; and

The lead area connecting the display area, the lead area is formed with a lead for connecting the display area and an external circuit, the lead area is bent around the bending axis to form a bending area, the lead and the bending The axes intersect and the line traverses the bend region.

In the display panel of the embodiment of the present invention, the lead area can be bent to the back of the display area around the bending axis, thereby reducing the frame of the display panel and increasing the ratio of the display area to the display panel. Crossing the bending area can reduce the lateral stress on the lead wire when it is bent around the bending axis, and reduce the probability of failure of the lead wire in the bent state.

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

In some embodiments, the display panel includes a flexible OLED.

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

The display area is rectangular and includes vertically connected first connecting sides and second connecting sides;

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

In some embodiments, the leads include at least one bundle of leads, and the leads of the same bundle have the same length.

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

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

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

a polyline segment connected to said oblique line segment and straight across said bend region; and

For the second straight line segment connected to the broken line segment and arranged in parallel, the width of the plurality of first straight line segments is greater than the width of the plurality of second straight line segments.

In some embodiments, the fold line segment crosses the bending region straightly multiple times.

In some embodiments, the number of times that the plurality of fold line segments cross the bending area is equal.

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

In some embodiments, the leads are perpendicular to the bending axis.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and understandable from the description of the embodiments in conjunction with the following drawings, wherein:

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

FIG. 2 is a schematic structural diagram of a lead wire according to an embodiment of the present invention.

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

FIG. 4 is a schematic structural diagram of a display panel according to yet 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 line segment 1422, oblique line segment 1424, broken line segment 1426, second straight line segment 1428, bending area 144;

An external circuit 20 , a circuit board 22 , a driver chip 24 , and a GOA unit 26 .

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, are only for explaining the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention.

In describing the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front ", "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 only for the convenience of describing the embodiment of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific configuration and operation, and therefore should not be construed as limiting the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the description of the embodiments of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or It is a detachable connection, or an integral connection; it can be mechanically connected, it can be electrically connected, or it can communicate with each other; it can be directly connected or indirectly connected through an intermediary, and it can be internal communication between two components or two components interaction relationship. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present invention according to specific situations.

In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, and may also include the first and second features. The second features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level 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 the embodiments of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, embodiments of the present invention may repeat reference numerals and/or reference letters in different instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. . In addition, embodiments of the present invention provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

Referring to FIG. 1 and FIG. 2 , a display panel 10 according to an embodiment of the present invention includes a display area 12 and a lead area 14 connected to the display area 12 . The lead area 14 is formed with a lead 142 for connecting the display area 12 and the external circuit 20 . The lead area 14 is bent around the bending axis to form a bending area 144 . The lead 142 crosses the bending axis and straightly crosses the bending area 144 .

In the display panel 10 in the embodiment of the present invention, the lead area 14 can be bent around the bending axis to the back of the display area 12, thereby reducing the frame of the display panel 10 and increasing the ratio of the display area 12 to the display panel 10, Moreover, since the lead wire 142 crosses the bending region 144 in a straight line, the lateral stress on the lead wire 142 when it is bent around the bending axis can be reduced, and the probability of failure of the lead wire 142 in the bent state can be reduced.

It can be understood that the display area 12 may include a plurality of display pixels, and these display pixels are driven or controlled by an external circuit 20 connected to the display area 12 . The leads 142 are used to transmit signals between the display area 12 and the external circuit 20 . The display panel 10 may include an external circuit 20 .

Please refer to FIG. 1 again. In one example, the external circuit 20 includes a circuit board 22 and a driver chip 24 disposed on the circuit board 22 . The wires 142 are connected to the display area 12 and the circuit board 22 .

Please refer to FIG. 3 , in another example, the external circuit 20 includes a driver chip 24 . The wires 142 are connected to the display area 12 and the driving chip 24 .

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

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

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

When the display panel 10 is a flexible display panel, the display panel 10 can also include a bendable substrate, so that the lead 142 can be bent by bending the substrate of the lead region 14 to realize the control of the frame size of the display panel 10 , to maximize the ratio of the display area 12 to the display panel 10 .

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

Specifically, flexible OLEDs have the advantages of low power consumption and bendability.

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

In this way, the external circuit 20 can drive or control the display area 12 to display through the wire 142 .

In some embodiments, the lead wires 142 include at least one bundle of lead wires 142 , and the lead wires 142 of the same bundle have the same length.

Specifically, taking FIG. 3 as an example, the display panel 10 in FIG. Connect edge 124. And the lengths of multiple lead wires 142 in each bundle of lead wires 142 are equal. Corresponding to the six lead wires 142 , the external circuit 20 includes three horizontal circuit boards 22 and driver chips 24 arranged on the circuit boards 22 , and three vertical driver chips 24 .

Since the lead wires 142 are used to transmit signals between the display area 12 and the external circuit 20 , in order to ensure the synchronization of signal transmission, preferably, the thread of each lead wire 142 in the same bundle of lead wires 142 is consistent, that is, the length is the same.

Please refer to FIG. 2 again, in some embodiments, the lead wires 142 of the same bundle include a first straight line segment 1422 , an oblique 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 oblique line segment 1424 is connected with the first straight line segment 1422 and arranged together in a triangular shape. The fold line segment 1426 is connected to the oblique line segment 1424 and straightly crosses the bending region 144 . One end of the second straight line segment 1428 is connected to the broken 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 line segments 1422 is greater than the width d2 of the plurality of second straight line segments 1428 .

In this way, the lead wires 142 can be gradually gathered and shrunk so as to be connected with the external circuit 20, thereby reducing the occupied space. Moreover, the bending line segment 1426 crosses the bending area 144 in a straight line, which can avoid corners in the bending area 144 and reduce the probability of failure of the lead 142 in the bending area 144 after being bent.

It can be understood that since there are no corners and laterally arranged leads 142 in the bending area 144 according to the embodiment of the present invention, the entire bending area 144 can be provided with a transverse bending axis.

In some embodiments, the fold line segment 1426 traverses the bend region 144 in a straight line multiple times.

In this way, the lead wire 142 is folded multiple times, which is beneficial to accommodate the lead wire 142 and reduce the longitudinal width of the lead wire region 14 . The number of times that the fold line segment 1426 crosses the bend region 144 can be designed according to the length of the lead wire 142 .

In some embodiments, the plurality of fold line segments 1426 traverse the bend region 144 an equal number of times.

For example, taking FIG. 2 as an example, all the lead wires 142 cross the bending area 144 three times, that is, they are bent twice to form a three-segment line segment. In this way, the lateral width of each folded line segment 1426 is consistent or the distance between two adjacent folded line segments 1426 is equal, which facilitates the arrangement of the leads 142 when manufacturing the display panel 10 .

The arrangement of the lead wires 142 in the embodiment of the present invention can take into account the consistent length of each lead wire 142 without increasing the complexity of the design and the difficulty of process integration, thereby ensuring a consistent load.

It should be pointed out that the structure of the lead wire 142 shown in FIG. 2 is only one design manner of the lead wire 142 , and in other implementation manners, the lead wire 142 may adopt other bending and arrangement forms as required.

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

When the lead wire 142 is bent along the bending axis, the lead wire 142 is subjected to stress perpendicular to the bending axis and from the bending axis to both sides. And when the angle range between the lead wire 142 and the bending axis is 60°-120°, the lateral stress suffered by the lead wire 142 during bending is relatively small, and the main component of the stress is the direction parallel to the lead wire. Wires have less influence.

In some embodiments, the leads 142 are perpendicular to the bend axis.

Same 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 of the bending axis. However, in the embodiment of the present invention, the lead wire 142 is perpendicular to the bending axis, that is to say, the stress direction is parallel to the lead wire 142 . Therefore, the lateral stress experienced by the leads 142 is zero. In this way, the probability of failure of the lead wire 142 in the bent state can be greatly reduced.

The display area 12 of the embodiment of the present invention is not limited to being a rectangle. When the display area 12 is non-rectangular, for example, the display area 12 is a circle or a parallelogram, etc., the arrangement of the lead wires 142 can also adopt the same design method, and then connect to the output of display area 12.

In the description of this specification, reference to the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific examples" or "some examples" etc. Specific features, structures, materials, or features described in an embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent modules, segments or portions of code comprising one or more executable instructions for implementing specific logical functions or steps of the process , and the scope of preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present invention pertain.

The logic and/or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium, For use with instruction execution systems, devices, or devices (such as computer-based systems, systems including processing modules, or other systems that can fetch instructions from instruction execution systems, devices, or devices and execute instructions), or in conjunction with these instruction execution systems, devices or equipment used. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate or transmit a program for use in or in conjunction with an instruction execution system, device, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: electrical connection with one or more wires (IPM overcurrent protection circuit), portable computer disk case (magnetic device), random access memory ( RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable compact disc read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, since the program can be read, for example, by optically scanning the paper or other medium, followed by editing, interpretation or other suitable processing if necessary. The program is processed electronically and stored in computer memory.

It should be understood that each part of the embodiments of the present invention may be implemented by hardware, software, firmware or a combination thereof. In the embodiments described above, various steps or methods may be implemented by software or firmware stored in 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 known in the art: Discrete logic circuits, ASICs with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. During execution, 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, each unit may exist separately physically, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the integrated modules are realized in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.

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

Although the embodiment of the present invention has been shown and described above, it can be understood that the above embodiment is exemplary and should not be construed as a limitation of the present invention, and those skilled in the art can make the above-mentioned Implementing implements changes, modifications, substitutions and variations.

Claims (10)

1. A display panel, characterized in that, comprising: the display area; and The lead area connecting the display area, the lead area is formed with a lead for connecting the display area and an external circuit, the lead area is bent around the bending axis to form a bending area, the lead and the bending The axes intersect and the line traverses the bend area. 2. The display panel according to claim 1, wherein the display panel comprises a flexible display panel. 3. The display panel of claim 1, wherein the display panel comprises a flexible OLED. 4. The display panel according to claim 1, wherein the display panel is rectangular when the display area and the lead area are flattened; The display area is rectangular and includes vertically connected first connecting sides and second connecting sides; The lead region is connected to the first connection side and the second connection side. 5. The display panel according to claim 1, wherein the lead wires comprise at least one bundle of lead wires, and the lead wires of the same bundle have the same length. 6. The display panel according to claim 5, wherein the lead wires of the same bundle comprise: a first straight line segment connected to the display area and arranged in parallel; oblique line segments connected to the first straight line segment and arranged in a triangular shape; a polyline segment connected to said oblique line segment and straight across said bend region; and For the second straight line segment connected to the broken line segment and arranged in parallel, the width of the plurality of first straight line segments is greater than the width of the plurality of second straight line segments. 7 . The display panel according to claim 6 , wherein the folded line segment crosses the bent region straightly for multiple times. 8 . 8 . The display panel according to claim 6 , wherein the number of times that the multiple fold line segments cross the bending area is equal. 9. The display panel according to claim 1, wherein an included angle between the lead wire and the bending axis ranges from 60° to 120°. 10. The display panel according to claim 1, wherein the lead wires are perpendicular to the bending axis.