CN110634916A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN110634916A CN110634916A CN201910760013.1A CN201910760013A CN110634916A CN 110634916 A CN110634916 A CN 110634916A CN 201910760013 A CN201910760013 A CN 201910760013A CN 110634916 A CN110634916 A CN 110634916A
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- 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]
- G09G3/3225—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] using an active matrix
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
- H10K50/82—Cathodes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/0426—Layout of electrodes and connections
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- Engineering & Computer Science (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the invention relates to the technical field of display, and discloses a display panel and a display device. The present invention provides a display panel including: a display area and a non-display area surrounding the display area, the display area including: a cathode layer; the non-display area includes: the cathode connecting layers are positioned on at least two sides of the display area and electrically connected with the cathode layer; the display panel further includes: and the cathode connecting port is positioned on at least two sides of the display area and electrically connected with the cathode connecting layer, and the cathode connecting port supplies power to the cathode layer through the cathode connecting layer. According to the display panel and the display device in the embodiment of the invention, the display brightness of the display screen is more uniform.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display panel and a display device.
Background
With the continuous development of science and technology, more and more electronic devices with display functions are widely applied to daily life and work of people, bring great convenience to the daily life and work of people, and become an indispensable important tool for people at present. The development of AMOLED display technology has made the display screen transition from small-sized mobile phone products to middle-and large-sized flat panels, notebook computers, televisions, etc.
However, the inventors found that at least the following problems exist in the prior art: the doubled increase of the screen size is usually accompanied with the doubled increase of the screen body current, and the uneven brightness of the display screen caused by the display resistance voltage drop of the power supply under the same process condition is not acceptable.
Disclosure of Invention
An object of embodiments of the present invention is to provide a display panel and a display device, which can make the display brightness of the display screen more uniform.
To solve the above technical problem, an embodiment of the present invention provides a display panel including: a display area and a non-display area surrounding the display area, the display area including: a cathode layer; the non-display area includes: the cathode connecting layers are positioned on at least two sides of the display area and electrically connected with the cathode layer; the display panel further includes: and the cathode connecting port is positioned on at least two sides of the display area and electrically connected with the cathode connecting layer, and the cathode connecting port supplies power to the cathode layer through the cathode connecting layer.
An embodiment of the present invention also provides a display device including: the display panel and the printed circuit board are used for supplying power to the cathode connecting port of the display panel.
Compared with the prior art in which all the cathode connection ports are arranged on the same side of the display panel, the distance from the cathode of a part of pixels in the display panel to the cathode connection port is reduced, so that the voltage drop between the part of pixels and the cathode connection port is reduced, the overall voltage drop difference of the display panel is reduced, and the display uniformity of the display panel is improved.
In addition, the number of the cathode connecting ports is multiple; the cathode connection layer includes at least: the first cathode connecting layer and the second cathode connecting layer are arranged on two opposite side edges of the display area; and part of the cathode connecting ports are connected with the first cathode connecting layer, and the rest of the cathode connecting ports are connected with the second cathode connecting layer. According to the scheme, the voltage drop difference between the pixels on one side of the display panel and the pixels on the other opposite side of the display panel is reduced, so that the display uniformity of the display panel is improved; and because the other two opposite sides of the display panel are not provided with the cathode connecting layer, the ultra-narrow frame design of the display screen is favorably realized.
In addition, the number of the cathode connecting ports is multiple; the cathode connection layer includes at least: the first cathode connecting layer and the second cathode connecting layer are arranged on two adjacent side edges of the display area; and part of the cathode connecting ports are connected with the first cathode connecting layer, and the rest of the cathode connecting ports are connected with the second cathode connecting layer.
In addition, the number of the cathode connecting ports is multiple; the cathode connection layer includes at least: the first cathode connecting layer, the second cathode connecting layer and the third cathode connecting layer are respectively arranged on three sides of the display area; some of the cathode connection ports are connected with the first cathode connection layer, the other cathode connection ports are connected with the second cathode connection layer, and the rest of the cathode connection ports are connected with the third cathode connection layer. According to the scheme, the distance difference between the pixels on the three sides of the display area provided with the cathode connecting layer and the cathode connecting port is reduced, the voltage drop difference between the pixels on the three sides of the display area provided with the cathode connecting layer is reduced, and the display uniformity of the display panel is further improved.
In addition, the number of the cathode connecting ports is multiple; the cathode connection layer includes at least: the first cathode connecting layer, the second cathode connecting layer, the third cathode connecting layer and the fourth cathode connecting layer are respectively arranged on four side edges of the display area; some of the cathode connection ports are connected with the first cathode connection layer, the other cathode connection port is connected with the second cathode connection layer, another cathode connection port is connected with the third cathode connection layer, and the rest cathode connection ports are connected with the fourth cathode connection layer. According to the scheme, the distance difference between the pixels on the four sides of the cathode connecting layer arranged in the display area and the cathode connecting port is reduced, the voltage drop difference is reduced, and the display uniformity of the display panel is further improved.
In addition, the cathode connection layer of each side connects at least two cathode connection ports. According to the scheme, the distance difference between the pixel on the side of the display panel where the cathode connecting port is arranged and the cathode connecting port is smaller, the voltage drop difference is reduced, and especially for a large-size display panel, the display uniformity of the large-size display panel can be effectively improved.
In addition, the number of cathode connection ports connected to the cathode connection layer of each side is the same.
In addition, the cathode connection layer includes: a plurality of sub-connection layers arranged at intervals; each sub-connection layer is connected to a cathode connection port.
In addition, the display area is arranged on the display surface of the display panel, and the cathode connecting port and the printed circuit board are arranged on the back surface of the display surface.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
FIG. 1 is a schematic diagram of a display panel in the prior art;
fig. 2 is a schematic structural diagram of a display panel according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram of a display panel including a sub-connection layer according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a display panel according to a second embodiment of the present invention;
fig. 5 is a schematic structural view of a display panel according to a third embodiment of the present invention;
fig. 6 is a schematic structural view of a display panel according to a fourth embodiment of the present invention;
fig. 7 is a schematic sectional structure view of a display device according to a fifth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
A schematic structural diagram of a display panel in the prior art is shown in fig. 1, a cathode connection layer 11 is disposed around the display panel, and two cathode connection ports 12 are disposed at a lower side of the display panel, the cathode connection ports 12 supply power to a cathode layer 10 of pixels in the display panel through the cathode connection layer 11, because the cathode connection ports 12 are close to the lower side of the display panel, distances between pixels at an upper side of the display panel and the cathode connection ports 12 and between pixels at a lower side of the display panel and the cathode connection ports 12 are greatly different (for example, it can be seen from the figure that a distance from a point a pixel to the cathode connection port 12 is much greater than a distance from a point B pixel to the cathode connection port 12, and distances from a point C pixel, a point D pixel and a point E pixel to the cathode connection port 12 are also greatly different), so that an overall voltage drop difference of the entire display panel is large, resulting in non-uniform display on the display panel.
A first embodiment of the present invention relates to a display panel, as shown in fig. 2, including: a display area and a non-display area (not shown) surrounding the display area, the display area including: a cathode layer 10; the non-display area includes: cathode connecting layers 11 positioned on at least two sides of the display area, the cathode connecting layers 11 being electrically connected to the cathode layer 10; the display panel further includes: and a cathode connection port 12 located on at least two sides of the display region and electrically connected to the cathode connection layer 11, wherein the cathode connection port 12 supplies power to the cathode layer 10 through the cathode connection layer 11. In this embodiment, the cathode connection layers 11 are disposed on at least two sides of the display area of the display panel, and the cathode connection ports 12 electrically connected to the cathode connection layers 11 are disposed on at least two sides of the display area, so as to supply power to the cathode layer 10 of the display panel through the cathode connection layers 11, compared with the prior art in which all the cathode connection ports 12 are disposed on the same side of the display panel, the distance from the cathode of a part of pixels in the display panel to the cathode connection port 12 is reduced, so that the voltage drop between the part of pixels and the cathode connection port 12 is reduced, thereby reducing the overall voltage drop difference of the display panel, and improving the display uniformity of the display panel.
The following description specifically describes implementation details of the display panel of the present embodiment, and the following description is provided only for the sake of understanding and is not necessary for implementing the present embodiment.
Fig. 2 shows a schematic structural diagram of the display panel in this embodiment:
a plurality of cathode connection ports 12; the cathode connection layer 11 includes at least: a first cathode connection layer 111 and a second cathode connection layer 112 disposed at opposite sides of the display region; some of the cathode connection ports 12 are connected to the first cathode connection layer 111, and the rest of the cathode connection ports 12 are connected to the second cathode connection layer 112.
Specifically, the cathode connection layer 11 in the present embodiment includes at least: the first cathode connection layer 111 and the second cathode connection layer 112, and the first cathode connection layer 111 and the second cathode connection layer 112 are respectively disposed on two opposite sides of the display region, in this embodiment, the first cathode connection layer 111 and the second cathode connection layer 112 shown in fig. 2 are respectively disposed on the upper side and the lower side of the display region, but those skilled in the art can understand that the first cathode connection layer 111 and the second cathode connection layer 112 can also be respectively disposed on the left side and the right side of the display region. Since the first cathode connection layer 111 and the second cathode connection layer 112 are respectively connected to a portion of the cathode connection port 12, the distance between a pixel on one side of the display area and the cathode connection port 12 and the distance difference between a pixel on the other opposite side and the cathode connection port 12 are reduced (for example, it can be seen from fig. 2 that the distance between a pixel at a point a in the display panel and the cathode connection port 12 is substantially the same as the distance between a pixel at a point B in the display panel and the cathode connection port 12), so that the voltage drop difference between the pixel on one side of the display panel and the pixel on the other opposite side is reduced, thereby improving the display uniformity of the display panel; and because the other two opposite sides of the display panel are not provided with the cathode connecting layer 11, the ultra-narrow frame design of the display screen is favorably realized.
Further, the cathode connection layer of each side connects at least two cathode connection ports 12.
Specifically, it can be seen from fig. 1 that the distance from the pixel C to the cathode connection port 12 at the same side of the display panel is significantly greater than the distance from the pixel B to the cathode connection port 12. In this embodiment, the distance from the pixel C to the cathode connection port 12 and the distance from the pixel B to the cathode connection port 12 on the same side of the display panel in fig. 2 are substantially the same. In this embodiment, the cathode connection layer 11 on each side is connected to at least two cathode connection ports 12, so that the distance between the pixel on the side where the cathode connection port 12 is disposed and the cathode connection port 12 of the display panel is smaller, the voltage drop difference is reduced, and the display uniformity of the display panel is further improved. Especially for a large-sized display panel, since the length and width of the display panel are large, when a plurality of cathode connection ports 12 are arranged in the length or width direction, the display uniformity of the large-sized display panel can be effectively improved.
It should be noted that, the number of the cathode connection ports 12 connected to the cathode connection layer 11 on each side is the same, and further, the distance from the pixel on each side of the display panel to the cathode connection port 12 is substantially the same, so that the voltage drop difference from the pixel on each side of the display panel to the cathode connection port 12 is reduced, and the display uniformity of the display panel is further improved.
In addition, as shown in fig. 3, the cathode connection layer 11 includes: a plurality of sub-connection layers 1101 arranged at intervals; each sub-connection layer 1101 is connected to a cathode connection port 12.
Specifically, the cathode connection layer may be a plurality of sub-connection layers 1101 arranged at intervals, each sub-connection layer 1101 is not connected to another sub-connection layer, and each sub-connection layer 1101 is individually connected to the cathode connection port 12. In this embodiment, the cathode connection layer 11 is provided as a plurality of sub-connection layers 1101 arranged at intervals, thereby providing an area for disposing the anode metal wire. It is also possible to realize the cathode connecting layer 11 as a whole connected conductive layer, and in this case, the anode metal wire may be disposed above the cathode connecting layer 11, and an insulating layer may be disposed between the cathode connecting layer 11 and the anode metal wire to prevent the anode metal wire and the cathode connecting layer 11 from being short-circuited.
Compared with the prior art, the embodiment of the invention provides the display panel, the cathode connection layers 11 are arranged on at least two sides of the display area 10 of the display panel, and the cathode connection ports 12 electrically connected with the cathode connection layers 11 are arranged on at least two sides of the display area, so that power is supplied to the cathode layer 10 of the display panel through the cathode connection layers 11, and compared with the prior art that all the cathode connection ports 12 are arranged on the same side of the display panel, the distance from the cathode of a part of pixels in the display panel to the cathode connection ports 12 is reduced, so that the voltage drop between the part of pixels and the cathode connection ports 12 is reduced, the integral voltage drop difference of the display panel is reduced, and the display uniformity of the display panel is improved.
A second embodiment of the present invention relates to a display panel. The second embodiment is substantially the same as the first embodiment except that the first cathode connection layer 111 and the second cathode connection layer 112 are disposed at two adjacent sides of the display region in this embodiment, giving another structure that can improve the display uniformity of the display panel.
Fig. 4 shows a schematic structural diagram of the display panel in this embodiment, which specifically includes:
a plurality of cathode connection ports 12; the cathode connection layer includes at least: a first cathode connection layer 111 and a second cathode connection layer 112 disposed on two adjacent sides of the display region; some of the cathode connection ports 12 are connected to the first cathode connection layer 111, and the remaining cathode connection ports 12 are connected to the second cathode connection layer 112.
Specifically, the cathode connection layer in this embodiment includes at least: the first cathode connection layer 111 and the second cathode connection layer 112, and the first cathode connection layer 111 and the second cathode connection layer 112 are respectively disposed on two adjacent sides of the display region. Since the first cathode connection layer 111 and the second cathode connection layer 112 are respectively connected to a portion of the cathode connection port 12, the distance difference between the pixels on two adjacent sides of the display area and the cathode connection port 12 is reduced (for example, it can be seen from fig. 3 that the distance between the pixel at a point a and the cathode connection port 12 is substantially the same as the distance between the pixel at B point a and the cathode connection port 12 in the display panel), so that the pixel voltage drop difference between the two adjacent sides of the display panel is reduced, and the display uniformity of the display panel is improved.
Compared with the prior art, the display panel provided in the embodiment of the invention has the advantages that the first cathode connection layer 111 and the second cathode connection layer 112 are arranged on two adjacent sides of the display area, so that the distance difference between the pixels on the two adjacent sides of the display area and the cathode connection port 12 is reduced, the pixel voltage drop difference between the two adjacent sides of the display panel is reduced, and another structure capable of improving the display uniformity of the display panel is provided.
A third embodiment of the present invention relates to a display panel. The third embodiment is substantially the same as the first embodiment except that: in this embodiment, the first cathode connection layer 111, the second cathode connection layer 112, and the third cathode connection layer 113 are respectively disposed on three sides of the display area, so that the voltage drop difference of the pixels on the three sides of the display area where the cathode connection layer 11 is disposed is reduced, and the display uniformity of the display panel is further improved.
Fig. 5 shows a schematic structural diagram of the display panel in this embodiment, which specifically includes:
a plurality of cathode connection ports 12; the cathode connection layer 11 includes at least: a first cathode connection layer 111, a second cathode connection layer 112 and a third cathode connection layer 113 respectively disposed at three sides of the display region; among the plurality of cathode connection ports 12, a part of the cathode connection ports 12 are connected to the first cathode connection layer 111, another part of the cathode connection ports 12 are connected to the second cathode connection layer 112, and the remaining cathode connection ports 12 are connected to the third cathode connection layer 113.
Specifically, the cathode connection layer 11 in the present embodiment includes at least: the first cathode connection layer 111, the second cathode connection layer 112, and the third cathode connection layer 113 are respectively disposed on three sides of the display area, and the first cathode connection layer 111, the second cathode connection layer 112, and the third cathode connection layer 113 are respectively connected to a portion of the cathode connection ports 12, so that distance differences between pixels on the three sides of the cathode connection layer disposed on the display area and the cathode connection ports 12 are reduced (for example, as compared with fig. 1, as can be seen from fig. 5, in the display panel in this embodiment, distance differences between pixels a, pixels B, pixels C, and pixels D in the display panel and the cathode connection ports 12 on the sides where the pixels a, B, C, and D are located are not large), so that voltage drop differences between pixels on the three sides of the cathode connection layer 11 disposed on the display area are reduced, and display uniformity of the display panel is further improved.
Compared with the prior art, the embodiment of the invention provides a display panel, the first cathode connecting layer 111, the second cathode connecting layer 112 and the third cathode connecting layer 113 are respectively arranged on three sides of the display area, and the first cathode connecting layer 111, the second cathode connecting layer 112 and the third cathode connecting layer 113 are respectively connected with part of the cathode connecting ports 12, so that the distance difference between the pixels on the three sides of the cathode connecting layer 11 arranged in the display area and the cathode connecting ports 12 is reduced, the voltage drop difference between the pixels on the three sides of the cathode connecting layer 11 arranged in the display area is reduced, and the display uniformity of the display panel is further improved.
A fourth embodiment of the present invention relates to a display panel. The fourth embodiment is substantially the same as the first embodiment, and mainly differs in that: the first cathode connection layer 111, the second cathode connection layer 112, the third cathode connection layer 113 and the fourth cathode connection layer 114 are respectively disposed on four sides of the display area, so that the voltage drop difference of the pixels on the four sides of the display area on which the cathode connection layer 11 is disposed is reduced, and the display uniformity of the display panel is further improved.
Fig. 6 shows a schematic structural diagram of the display panel in this embodiment, which specifically includes:
a plurality of cathode connection ports 12; the cathode connection layer includes at least: a first cathode connection layer 111, a second cathode connection layer 112, a third cathode connection layer 113 and a fourth cathode connection layer 114 respectively disposed at four sides of the display region; among the plurality of cathode connection ports 12, a part of the cathode connection ports 12 are connected to the first cathode connection layer 111, another part of the cathode connection ports 12 are connected to the second cathode connection layer 112, another part of the cathode connection ports 12 are connected to the third cathode connection layer 113, and the remaining cathode connection ports 12 are connected to the fourth cathode connection layer 114.
Specifically, the cathode connection layer in this embodiment includes at least: a first cathode connection layer 111, a second cathode connection layer 112, a third cathode connection layer 113, and a fourth cathode connection layer 114, respectively disposed at four sides of the display region, and the first cathode connection layer 111, the second cathode connection layer 112, the third cathode connection layer 113 and the fourth cathode connection layer 114 are respectively connected to a portion of the cathode connection port 12, so that the distance difference between the pixels on the four sides of the cathode connection layer 11 in the display region and the cathode connection port 12 is reduced (for example, as can be seen from fig. 6, in the display panel of this embodiment, the distances between the pixels a, B, C, D, and E in the display panel and the cathode connection port 12 on the side where the pixels are located are not greatly different), the voltage drop difference of the pixels on the four sides of the cathode connecting layer 11 arranged in the display area is reduced, and the display uniformity of the display panel is further improved.
Compared with the prior art, the embodiment of the invention provides a display panel, wherein the first cathode connection layer 111, the second cathode connection layer 112, the third cathode connection layer 113 and the fourth cathode connection layer 114 are respectively arranged on four sides of the display area, and the first cathode connection layer 111, the second cathode connection layer 112, the third cathode connection layer 113 and the fourth cathode connection layer 114 are respectively connected with part of the cathode connection ports 12, so that distance differences between pixels on the four sides of the cathode connection layer 11 arranged in the display area and the cathode connection ports 12 are reduced, voltage drop differences are reduced, and display uniformity of the display panel is further improved.
A fifth embodiment of the present invention relates to a display device including, as shown in fig. 7, the display panel 1 according to any one of the above embodiments, and a printed circuit board 2 for supplying power to the cathode connection port 12 of the display panel 1.
It should be noted that in this embodiment, the display area is disposed on the display surface of the display panel 1, and the cathode connection port 12 and the printed circuit board 2 are disposed on the back surface of the display surface. That is, the display panel 1 is located above the cathode connection port 12 and the printed circuit board 2, so that a certain width does not need to be reserved for the cathode connection port 12 and the printed circuit board 2 in the non-display area of the display panel 1, which is beneficial to realizing the narrow frame design of the display panel 1.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (10)
1. A display panel, comprising:
a display area and a non-display area surrounding the display area, the display area including: a cathode layer; the non-display area includes: the cathode connecting layers are positioned on at least two sides of the display area and electrically connected with the cathode layer;
the display panel further includes: and the cathode connecting port is positioned on at least two sides of the display area and electrically connected with the cathode connecting layer, and the cathode connecting port supplies power to the cathode layer through the cathode connecting layer.
2. The display panel according to claim 1, wherein the cathode connection port is plural; the cathode connection layer includes at least: the first cathode connecting layer and the second cathode connecting layer are arranged on two opposite side edges of the display area;
some of the cathode connection ports are connected to the first cathode connection layer, and the rest of the cathode connection ports are connected to the second cathode connection layer.
3. The display panel according to claim 1, wherein the cathode connection port is plural; the cathode connection layer includes at least: the first cathode connecting layer and the second cathode connecting layer are arranged on two adjacent side edges of the display area;
some of the cathode connection ports are connected to the first cathode connection layer, and the rest of the cathode connection ports are connected to the second cathode connection layer.
4. The display panel according to claim 1, wherein the cathode connection port is plural; the cathode connection layer includes at least: the first cathode connecting layer, the second cathode connecting layer and the third cathode connecting layer are respectively arranged on three sides of the display area;
some of the plurality of cathode connection ports are connected to the first cathode connection layer, another part of the plurality of cathode connection ports are connected to the second cathode connection layer, and the remaining cathode connection ports are connected to the third cathode connection layer.
5. The display panel according to claim 1, wherein the cathode connection port is plural; the cathode connection layer includes at least: the first cathode connecting layer, the second cathode connecting layer, the third cathode connecting layer and the fourth cathode connecting layer are respectively arranged on four side edges of the display area;
some of the plurality of cathode connection ports are connected to the first cathode connection layer, another part of the plurality of cathode connection ports are connected to the second cathode connection layer, another part of the plurality of cathode connection ports are connected to the third cathode connection layer, and the rest of the plurality of cathode connection ports are connected to the fourth cathode connection layer.
6. The display panel of claim 1, wherein the cathode connection layer of each side connects at least two of the cathode connection ports.
7. The display panel according to claim 6, wherein the number of the cathode connection ports connected to the cathode connection layer of each of the sides is the same.
8. The display panel according to claim 1, wherein the cathode connection layer comprises: a plurality of sub-connection layers arranged at intervals;
each sub-connection layer is connected with the cathode connection port.
9. A display device, comprising: the display panel of any one of claims 1 to 8, a printed circuit board to power a cathode connection port of the display panel.
10. The display device according to claim 9, wherein the display region is provided on a display surface of the display panel, and the cathode connection port and the printed circuit board are provided on a rear surface of the display surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910760013.1A CN110634916A (en) | 2019-08-16 | 2019-08-16 | Display panel and display device |
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| CN201910760013.1A CN110634916A (en) | 2019-08-16 | 2019-08-16 | Display panel and display device |
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| CN110634916A true CN110634916A (en) | 2019-12-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113554972A (en) * | 2020-04-08 | 2021-10-26 | 陈学仕 | Crosstalk improving method for QLED display panel and QLED display panel |
| WO2023216639A1 (en) * | 2022-05-12 | 2023-11-16 | 云谷（固安）科技有限公司 | Display panel and display apparatus |
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Application publication date: 20191231 |