CN116778864A - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN116778864A
CN116778864A CN202310837141.8A CN202310837141A CN116778864A CN 116778864 A CN116778864 A CN 116778864A CN 202310837141 A CN202310837141 A CN 202310837141A CN 116778864 A CN116778864 A CN 116778864A
Authority
CN
China
Prior art keywords
driving circuit
metal layer
display panel
display
display area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310837141.8A
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Chinese (zh)
Inventor
吴海艳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Tianma Microelectronics Co Ltd
Original Assignee
Wuhan Tianma Microelectronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Tianma Microelectronics Co Ltd filed Critical Wuhan Tianma Microelectronics Co Ltd
Priority to CN202310837141.8A priority Critical patent/CN116778864A/en
Publication of CN116778864A publication Critical patent/CN116778864A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals

Abstract

The application provides a display panel and a display device, the display panel includes: the display panel further comprises a metal part and a driving circuit, wherein the metal part is positioned in the non-display area, the driving circuit comprises a first driving circuit and a second driving circuit, and the metal part covers the first driving circuit and the second driving circuit. Therefore, the metal part covers the first driving circuit and the second driving circuit, so that the line width of the PVEE signal is increased, the load of the PVEE signal line is reduced, and the risk of burning the PVEE signal line is further reduced.

Description

Display panel and display device
Technical Field
The present application relates to the field of display technology, and more particularly, to a display panel and a display device.
Background
The development of conventional flat panel display devices has been mature, and flexible display panels will become the main stream of the display field due to their light, thin, bendable and impact-resistant properties. Among them, organic light emitting diodes (Organic Light Emitting Diode, OLED) have excellent properties such as bending resistance due to their high response speed, wide viewing angle, high luminance, low power consumption, and self-luminous devices, and have recently become one of the hot spots of research in the flexible display field.
However, in the prior art, in order to achieve the narrow frame of the display panel, the frame of the OLED display panel is compressed, and thus the PVEE (Pixel VEE, where Pixel represents a Pixel and VEE represents a negative voltage) signal line is compressed, so that the too thin PVEE signal line is loaded more, and there is a risk of burning the PVEE signal line.
Disclosure of Invention
In view of this, the present application provides a display panel and a display device, in which the metal portion is extended to cover the first driving circuit and the second driving circuit, so as to increase the line width of the PVEE signal, reduce the load of the PVEE signal, and further reduce the risk of burning the PVEE signal.
In a first aspect, the present application provides a display panel comprising a display region and a non-display region surrounding the display region;
the display panel comprises a metal part and a driving circuit, wherein the metal part is positioned in the non-display area, the driving circuit comprises a first driving circuit and a second driving circuit, and the metal part covers the first driving circuit and the second driving circuit.
In a second aspect, the present application also provides a display device comprising a display panel as described in any one of the first aspects.
Compared with the related art, the display panel and the display device provided by the application have the advantages that at least the following effects are realized:
the application provides a display panel and a display device, wherein the display panel comprises: the display panel further comprises a metal part and a driving circuit, wherein the metal part is positioned in the non-display area, the driving circuit comprises a first driving circuit and a second driving circuit, and the metal part covers the first driving circuit and the second driving circuit. Therefore, the metal part covers the first driving circuit and the second driving circuit, and the line width of the PVEE signal is increased, so that the load of the PVEE signal line is reduced, and the risk of burning the PVEE signal line is further reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a partial structure of a display panel according to an embodiment of the present application;
fig. 2 is a schematic partial structure of another display panel according to an embodiment of the application;
fig. 3 is a schematic structural diagram of a special-shaped edge in a display panel according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
In the following detailed description of the embodiments of the present application, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration only, and in which is shown by way of illustration only, and in which the scope of the application is not limited for ease of illustration. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
In order to facilitate understanding of the technical solution provided by the present application, the following description will first explain the background art related to the present application.
OLEDs have excellent properties such as a fast response speed, a wide viewing angle, high luminance, low power consumption, and a self-light emitting device, and have anti-bending characteristics, and thus have become one of hot spots for research in the field of flexible display in recent years.
In the OLED display panel, a display region, in which a display unit may be disposed, and a non-display region surrounding the display region, in which a driving circuit may be disposed, may be included, and generally, the non-display region is disposed at the periphery of the display region.
In the prior art, in order to realize the narrow frame of the display panel, the left and right frames of the OLED display panel are compressed, so that PVEE signal lines are compressed, the occupied space of PVEE line width is limited, the load of the thinned PVEE signal lines is large, and the risk of burning the PVEE signal lines exists.
Accordingly, in view of the above problems, an embodiment of the present application provides a display panel and a display device, the display panel including: the display panel further comprises a metal part and a driving circuit, wherein the metal part is positioned in the non-display area, the driving circuit comprises a first driving circuit and a second driving circuit, and the metal part covers the first driving circuit and the second driving circuit. Therefore, the metal part of the application covers the first driving circuit and the second driving circuit, increases the line width of PVEE signals, reduces the load of PVEE signal lines, and further reduces the risk of burning the PVEE signal lines.
For a better understanding of the technical solutions and technical effects of the present application, specific embodiments will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic diagram of a partial structure of a display panel according to an embodiment of the application.
The present application provides a display panel, comprising: the display panel further includes a metal part 101 at the non-display area NA and a driving circuit including a first driving circuit 102 and a second driving circuit 103. The first driving circuit 102 and the second driving circuit 103 may be arranged in parallel, and the metal portion 101 covers the first driving circuit 102 and the second driving circuit 103.
The metal part may be made of a metal material with high flexibility, and may be, for example, titanium, aluminum or a combined metal material.
The driving circuit may generate a plurality of scan signals having a gate-on level to supply gray voltages to the plurality of pixels. In addition to providing the gray voltages, the driving circuit may generate a plurality of light emission control signals having a gate-on level.
Specifically, the display panel provided in this embodiment includes a display area AA and a non-display area NA surrounding the display area, where the display area AA has a display function and the non-display area NA is not used for display, and structures such as circuit elements and wirings may be provided. The circuit unit may include a driving circuit for controlling the display unit of the display area AA to display the content to be displayed, and the driving circuit may include a VSR circuit, for example. Generally, the non-display area NA is disposed at the periphery of the display area AA.
In the display area AA, the display unit may include a liquid crystal display unit or an organic light emitting diode, and the display unit may be connected to a thin film transistor for controlling power supply of the display unit, thereby controlling display of the display unit. In the non-display area NA, the driving circuit may include a thin film transistor for connection with the display unit to control power supply of the display unit to control display of the display unit.
It should be noted that, in the embodiment of the present application, the display panel includes a metal portion and a driving circuit, where the metal portion is located in a non-display area, the driving circuit includes a first driving circuit and a second driving circuit, the first driving circuit and the second driving circuit are arranged in parallel, and the metal portion 101 covers the first driving circuit 102 and the second driving circuit 103, so that the line width of the PVEE signal is increased, thereby reducing the load of the PVEE signal line, and further reducing the risk of burning the PVEE signal line.
In one possible implementation manner, referring to fig. 2, fig. 2 is a schematic partial structure diagram of another display panel provided by an embodiment of the present application, where the metal portion includes a first metal layer 201, and an upper edge of the first metal layer 201 covers an upper frame of a second driving circuit 205 in the driving circuit; the lower edge of the first metal layer 201 covers the lower frame of the second driving circuit 205 in the driving circuit; the end of the first metal layer 201 covers the end of the second driving circuit 205 near the display area AA.
It can be appreciated that in the embodiment of the present application, by extending the routing of the first metal layer 201, the upper edge of the first metal layer 201 covers the upper frame of the second driving circuit 205 in the driving circuit, the lower edge of the first metal layer 201 covers the lower frame of the second driving circuit 205 in the driving circuit, and the tail end of the first metal layer 201 covers one end of the second driving circuit 205 near the display area AA in the driving circuit, so that the PVEE signal line width is increased, the load of the PVEE signal line is reduced, and the risk of burning the PVEE signal line is further reduced.
In one possible implementation, the first metal layer 201 may be an M4 metal layer, and the type of the first metal layer is not limited in the embodiment of the present application.
In order to realize the narrow frame, the wiring in the frame needs to be compressed, and at this time, the embodiment of the application can reduce the original PVEE line width, so that the PVEE line width is the reduced original PVEE line width plus the prolonged M4 metal line width, and the load is lower than the load under the original PVEE line width, and the narrow frame can be realized.
In one possible implementation manner, the metal portion includes a first metal layer, a second metal layer and a third metal layer, and the display panel includes a first data line, a second data line and a third data line penetrating through the non-display area NA, where the first metal layer is disposed in a same layer as the first data line, the second metal layer is disposed in a same layer as the second data line, and the third metal layer is disposed in a same layer as the third data line.
It should be noted that, at least the portion of the data line penetrating through the non-display area may be located in different layers of the display panel, so as to reduce the number of data lines located in the same layer in the non-display area, increase the interval between adjacent data lines in the same layer in the non-display area, and under the condition that other parameters are unchanged, increase the interval between adjacent data lines can reduce the coupling capacitance between adjacent data lines, and reduce the probability of data signal jump caused by the data line due to larger coupling capacitance in the process of transmitting data signals, thereby reducing the probability of abnormal display of the display panel caused by the foregoing.
In one possible implementation, referring to fig. 2, the metal portion includes a second metal layer 202, and an upper edge of the second metal layer 202 covers an upper frame of the first driving circuit 204 in the driving circuit; the lower edge of the second metal layer 202 covers the lower frame of the first driving circuit 204 in the driving circuit; the end of the second metal layer 202 covers the end of the first driving circuit 204 away from the display area AA.
Specifically, as shown in fig. 2, an upper edge of the second metal layer 202 covers an upper frame of the first driving circuit 204 in the driving circuits, and a lower edge of the second metal layer 202 covers a lower frame of the first driving circuit 204 in the driving circuits; the end of the second metal layer 202 covers the end of the first driving circuit 204, which is far away from the display area AA, in the driving circuit, so that the space of the non-display area NA is effectively utilized, and the narrow frame of the display panel is facilitated.
In one possible implementation, referring to fig. 2, the metal portion includes a third metal layer 203, and an upper edge of the third metal layer 203 covers an upper frame of the first driving circuit 204 in the driving circuit; the lower edge of the third metal layer 203 covers the lower frame of the first driving circuit 204 in the driving circuit; the end of the third metal layer 203 covers the end of the first driving circuit 204 away from the display area AA.
Specifically, as shown in fig. 2, an upper edge of the third metal layer 203 covers an upper frame of the first driving circuit 204 in the driving circuit; the lower edge of the third metal layer 203 covers the lower frame of the first driving circuit 204 in the driving circuit; the end of the third metal layer 203 covers one end of the first driving circuit 204, which is far away from the display area AA, in the driving circuit, so that the space of the non-display area NA is effectively utilized, thereby being beneficial to realizing the narrow frame of the display panel.
In one possible implementation manner, the non-display area includes a plurality of special-shaped edges, and referring to fig. 3, fig. 3 is a schematic structural diagram of a special-shaped edge in a display panel provided by an embodiment of the present application, and a special-shaped edge 30 is illustrated, where the special-shaped edge 30 may be a curved segment, an arc segment, or an oblique segment, and fig. 3 only illustrates the special-shaped edge 30 as an arc segment, which is not limited by the embodiment of the present application.
It should be noted that the shaped edge in the non-display area may be a corner area of the display panel, where the display panel includes a plurality of corner areas.
It will be appreciated that, as shown in fig. 3, the portion of the first driving circuit near the shaped edge is in an arc section, and the portion of the second driving circuit near the shaped edge is in an arc section.
In the special-shaped edge 30, the driving circuit comprises a second driving circuit 302 and a second driving circuit 303, and the upper edge of the first metal layer 301 covers the upper frame of the second driving circuit 303 in the driving circuit; the lower edge of the first metal layer 301 covers the lower frame of the second driving circuit 303 in the driving circuit; the end of the first metal layer 301 covers an end of the second driving circuit 303 in the driving circuit, which is close to the display area AA.
In the embodiment of the present application, in the special-shaped edge 30, by extending the routing of the first metal layer 301, the upper edge of the first metal layer 301 covers the upper frame of the second driving circuit 301 in the driving circuit; the lower edge of the first metal layer 301 covers the lower frame of the second driving circuit 303 in the driving circuit; the end of the first metal layer 301 covers the end of the second driving circuit 303 close to the display area AA in the driving circuit, which increases the line width of the PVEE signal, further reduces the load of the PVEE signal, and further reduces the risk of burning the PVEE signal.
In one possible implementation, the first driving circuit is configured to provide a driving signal to the scanning signal line, and the second driving circuit is configured to provide a driving signal to the light emitting signal line.
Specifically, in one possible implementation, the first driving circuit may be a light emission control driving circuit, and the second driving circuit may be a scan control driving circuit.
Specifically, the light emission control driving circuit is electrically connected to the scanning signal line for supplying a driving signal to the light emission signal line. The scan control driving circuit is electrically connected with the scan signal line for supplying a driving signal to the scan signal line.
Based on the same inventive concept, referring to fig. 4, fig. 4 is a schematic structural diagram of a display device 400 according to an embodiment of the present application, where the display device 400 includes a display panel having a display area AA and a non-display area NA surrounding the display area AA, and the display panel may be specifically a display panel according to any one of the foregoing fig. 1 to 3.
The display device 400 provided by the present application may be: any product or component with display function such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
According to the above embodiments, the beneficial effects of the application are as follows:
the application provides a display panel and a display device, wherein the display panel comprises: the display panel also comprises a metal part and a driving circuit, wherein the metal part and the driving circuit are positioned in the non-display area, the driving circuit comprises a first driving circuit and a second driving circuit, the first driving circuit and the second driving circuit are arranged in parallel, and the metal part covers the first driving circuit and the second driving circuit. Therefore, the metal part covers the first driving circuit and the second driving circuit, and the line width of the PVEE signal is increased, so that the load of the PVEE signal line is reduced, and the risk of burning the PVEE signal line is further reduced.
For the foregoing embodiments, for simplicity of explanation, the same is shown as a series of acts, but it should be understood by those skilled in the art that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently in accordance with the application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.

Claims (10)

1. A display panel, the display panel comprising: a display area and a non-display area surrounding the display area, the display panel further comprising:
and the metal part is positioned in the non-display area and comprises a first driving circuit and a second driving circuit, and the metal part covers the first driving circuit and the second driving circuit.
2. The display panel of claim 1, wherein the metal portion comprises a first metal layer;
the upper edge of the first metal layer covers the upper frame of the second driving circuit;
the lower edge of the first metal layer covers the lower frame of the second driving circuit;
the tail end of the first metal layer covers one end of the second driving circuit, which is close to the display area.
3. The display panel of claim 1, wherein the metal portion comprises a second metal layer;
the upper edge of the second metal layer covers the upper frame of the first driving circuit;
the lower edge of the second metal layer covers the lower frame of the first driving circuit;
the end of the second metal layer covers one end of the first driving circuit, which is far away from the display area.
4. The display panel according to claim 1, wherein the metal portion includes a third metal layer;
the upper edge of the third metal layer covers the upper frame of the first driving circuit;
the lower edge of the third metal layer covers the lower frame of the first driving circuit;
the tail end of the third metal layer covers one end of the first driving circuit, which is close to the display area.
5. The display panel of claim 2, wherein the non-display area includes a plurality of shaped edges, in each shaped edge, an upper edge of the first metal layer covers an upper bezel of the second driving circuit, a lower edge of the first metal layer covers a lower bezel of the second driving circuit, and a terminal end of the first metal layer covers an end of the second driving circuit near the display area.
6. The display panel of claim 1, wherein the metal portion comprises a first metal layer, a second metal layer, and a third metal layer, the display panel comprising a first data line, a second data line, and a third data line extending through the non-display region, wherein the first metal layer is co-layer with the first data line, the second metal layer is co-layer with the second data line, and the third metal layer is co-layer with the third data line.
7. The display panel according to any one of claims 1 to 6, wherein the first driving circuit is configured to supply a driving signal to the light-emitting signal line, and wherein the second driving circuit is configured to supply a driving signal to the scanning signal line.
8. The display panel according to claim 7, wherein the first driving circuit is a light emission control driving circuit.
9. The display panel according to claim 7, wherein the second driving circuit is a scan control driving circuit.
10. A display device, characterized in that the display device comprises a display panel according to any of the preceding claims 1-9.
CN202310837141.8A 2023-07-07 2023-07-07 Display panel and display device Pending CN116778864A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310837141.8A CN116778864A (en) 2023-07-07 2023-07-07 Display panel and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310837141.8A CN116778864A (en) 2023-07-07 2023-07-07 Display panel and display device

Publications (1)

Publication Number Publication Date
CN116778864A true CN116778864A (en) 2023-09-19

Family

ID=87992899

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310837141.8A Pending CN116778864A (en) 2023-07-07 2023-07-07 Display panel and display device

Country Status (1)

Country Link
CN (1) CN116778864A (en)

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