CN111833811B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN111833811B CN111833811B CN201911320763.3A CN201911320763A CN111833811B CN 111833811 B CN111833811 B CN 111833811B CN 201911320763 A CN201911320763 A CN 201911320763A CN 111833811 B CN111833811 B CN 111833811B
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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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
Abstract
The invention discloses a display panel and a display device. The display panel is provided with a display area and a non-display area surrounding the display area, the display area comprises a first display area and a second display area, the light transmittance of the first display area is larger than that of the second display area, the display panel comprises scanning lines, data lines, a scanning driving circuit and a data driving circuit, in the first direction, the distance between the ith data line and the scanning driving circuit is smaller than that between the (i + 1) th data line and the scanning driving circuit, the length of an output line corresponding to the ith data line is smaller than that of an output line corresponding to the (i + 1) th data line, and M is a positive integer. According to the display panel provided by the embodiment of the invention, the display quality of the display panel can be improved.
Description
Technical Field
The invention relates to the field of display, in particular to a display panel and a display device.
Background
With the rapid development of electronic devices, the requirements of users on screen occupation ratio are higher and higher, so that the comprehensive screen display of the electronic devices is concerned more and more in the industry.
Conventional electronic devices such as mobile phones, tablet computers, etc. need to integrate components such as front-facing cameras, earphones, infrared sensing elements, etc. In the prior art, a groove (Notch) or an opening may be formed in the display screen, and external light may enter the photosensitive element located below the screen through the groove or the opening. However, these electronic devices are not all full-screen in the true sense, and cannot display in each area of the whole screen, for example, the corresponding area of the front camera cannot display the picture.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which can realize that at least part of the area of the display panel is light-permeable and can display, and are convenient for the under-screen integration of a photosensitive assembly.
In one aspect, an embodiment of the present invention provides a display panel, which has a first display area and a second display area, wherein the first display area includes a central area and an edge area adjacent to the central area, and a light transmittance of the first display area is greater than a light transmittance of the second display area, and the display panel includes:
the scanning driving circuit is arranged in the non-display area and is arranged at intervals with the first display area through the second display area in the first direction;
the N scanning lines extend in the second display area along the first direction and are connected with the scanning driving circuit;
m data lines extending in a second direction intersecting the first direction in the second display region;
the data driving circuit is arranged in the non-display area, is arranged at an interval with the first display area through the second display area in a second direction, and is connected with the data lines through output lines in a mode that one output line corresponds to one data line;
in the first direction, the distance between the ith data line and the scanning driving circuit is greater than the distance between the (i + 1) th data line and the scanning driving circuit, the length of an output line corresponding to the ith data line is less than the length of an output line corresponding to the (i + 1) th data line, M, N, i is a positive integer, and i is less than or equal to M-1.
According to an aspect of the embodiment of the present invention, the difference between the lengths of any two adjacent output lines is the same value.
According to an aspect of an embodiment of the present invention, the data driving circuit is located far from the scan driving circuit in the first direction.
According to an aspect of an embodiment of the present invention, the output lines include linear output lines and/or curved output lines.
According to an aspect of the embodiment of the present invention, the display area is a rectangular display area, and the first display area is adjacent to two sides of the display area, or the first display area is adjacent to one side of the display area.
According to an aspect of an embodiment of the present invention, the number of the data driving circuits is one or two;
if the number of the data driving circuits is two, the two data driving circuits are arranged oppositely.
According to an aspect of an embodiment of the present invention, at least two adjacent output lines are located at different layers.
According to an aspect of the embodiments of the present invention, the data driving circuit includes a plurality of output ports, one output port is connected to one data line, and the plurality of output ports are uniformly arranged along the first direction, or the plurality of output ports are uniformly arranged along the first direction and the second direction.
According to an aspect of an embodiment of the present invention, a display panel includes:
the first sub-pixels are positioned in the first display area and comprise a first electrode, a light-emitting structure and a second electrode which are sequentially stacked;
the first pixel circuit is positioned in the second display area, is electrically connected with the first sub-pixel and is used for driving the first sub-pixel to display;
the second sub-pixels are positioned in the second display area;
in some alternative embodiments, the size of the first sub-pixel is smaller than the size of a second sub-pixel of the same color;
in some optional embodiments, the projection of the light emitting structure in the direction perpendicular to the lamination direction of the display panel is composed of one first graphic unit or is composed of more than two first graphic units which are spliced, and the first graphic unit comprises at least one selected from the group consisting of a circle, an ellipse, a dumbbell, a gourd and a rectangle;
in some optional embodiments, the projection of the first electrode in the direction perpendicular to the lamination direction of the display panel is composed of one second graphic unit or is composed of more than two second graphic units which are spliced, and the second graphic units comprise at least one selected from the group consisting of a circle, an ellipse, a dumbbell, a gourd and a rectangle;
in some alternative embodiments, the first electrode is a light transmissive electrode;
in some alternative embodiments, the first electrode is a reflective electrode;
in some alternative embodiments, the first electrode comprises a layer of indium tin oxide or indium zinc oxide;
in some alternative embodiments, the second electrode comprises a magnesium silver alloy layer;
in some alternative embodiments, the circuit structure of the first pixel circuit is any one of a 1T circuit, a 2T1C circuit, a 3T1C circuit, a 6T1C circuit, a 6T2C circuit, a 7T1C circuit, a 7T2C circuit, or a 9T1C circuit.
In another aspect, an embodiment of the present invention provides a display device, which includes the display panel of any one of the foregoing embodiments.
According to the display panel provided by the embodiment of the invention, the light transmittance of the first display area is greater than that of the second display area, so that the display panel can integrate the photosensitive assembly on the back surface of the first display area, the screen-under integration of the photosensitive assembly such as a camera is realized, meanwhile, the first display area can display pictures, the display area of the display panel is increased, and the comprehensive screen design of the display device is realized.
According to the display panel of the embodiment of the invention, in the first direction, the distance between the ith data line and the scanning driving circuit is greater than the distance between the (i + 1) th data line and the scanning driving circuit, the length of the output line corresponding to the ith data line is less than the length of the output line corresponding to the (i + 1) th data line, and M is a positive integer. By the arrangement, the signal delay of the data line and the signal delay of the scanning line are mutually offset, the uniformity of the display brightness of the display panel can be improved, and the display quality of the display panel is further improved.
Drawings
Other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof, and which are not to scale.
FIG. 1 illustrates a schematic top view of a display panel provided in accordance with an embodiment of the invention;
FIG. 2 illustrates a schematic top view of a display panel provided in accordance with another embodiment of the present invention;
FIG. 3 illustrates a schematic top view of a display device provided in accordance with an embodiment of the invention;
fig. 4 shows a cross-sectional view along a-a in fig. 3, provided as an example.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It will be understood that when a layer, region or layer is referred to as being "on" or "over" another layer, region or layer in describing the structure of the component, it can be directly on the other layer, region or layer or intervening layers or regions may also be present. Also, if the component is turned over, one layer or region may be "under" or "beneath" another layer or region.
On electronic devices such as mobile phones and tablet computers, it is necessary to integrate a photosensitive component such as a front camera, an infrared light sensor, a proximity light sensor, and the like on the side where the display panel is provided. In some embodiments, a transparent display area may be disposed on the electronic device, and the photosensitive component is disposed on the back of the transparent display area, so that full-screen display of the electronic device is achieved under the condition that the photosensitive component is ensured to work normally.
In order to improve the light transmittance of the light-transmitting display region, the scan driving circuit may be disposed on only one side of the display panel to avoid the arrangement of scan lines in the light-transmitting display region. However, the scan driving circuit is provided only on one side of the display panel, and there is a problem that display luminance is not uniform in different regions of the display panel.
In order to solve the above problems, embodiments of the present invention provide a display panel and a display device, and the following describes embodiments of the display panel and the display device with reference to the accompanying drawings.
Embodiments of the present invention provide a display panel, which may be an Organic Light Emitting Diode (OLED) display panel.
Fig. 1 illustrates a schematic top view of a display panel provided according to an embodiment of the present invention. Fig. 2 is a schematic top view of a display panel according to another embodiment of the present invention.
The display panel 100 has a display area and a non-display area NA surrounding the display area. The display area includes a first display area AA1 and a second display area AA2, and the light transmittance of the first display area AA1 is greater than that of the second display area AA 2.
Herein, it is preferable that the light transmittance of the first display area AA1 is 15% or more. In order to ensure that the light transmittance of the first display area AA1 is greater than 15%, even greater than 40%, or even higher, the light transmittance of at least some functional film layers of the display panel 100 in this embodiment is greater than 80%, and even greater than 90%.
According to the display panel 100 of the embodiment of the invention, the light transmittance of the first display area AA1 is greater than that of the second display area AA2, so that the display panel 100 can integrate a photosensitive component on the back of the first display area AA1, and realize the under-screen integration of the photosensitive component such as a camera, and meanwhile, the first display area AA1 can display a picture, so that the display area of the display panel 100 is increased, and the full-screen design of the display device is realized.
The display panel 100 includes scan lines, data lines, a scan driving circuit 110 and a data driving circuit 120.
The scan driving circuit 110 is disposed in the non-display area NA, and the scan driving circuit 110 is disposed in the first direction X and spaced apart from the first display area AA1 by the second display area AA 2.
The N scan lines S1 through Sn extend in the first direction X in the second display area AA 1. N is a positive integer. A portion of the scan line between the scan driving circuit 110 and the first display area AA1 extends to an edge of the first display area AA1 adjacent to the second display area AA2 in the first direction X, and the scan line is connected to the scan driving circuit 110. That is, the number of the scan driving circuits 110 is one, the scan lines are provided by a single-end driving method, and in order to avoid disposing the scan lines in the first display area AA1, as shown in fig. 1 or fig. 2, the first display area AA1 is disposed at the edge of the display area opposite to the scan driving circuits 110.
The M data lines D1 to Dm are extended in the second display area AA2 in the second direction Y intersecting the first direction X. A portion of the data line between the non-display area NA and the first display area AA1 extends to an edge of the first display area AA1 adjacent to the second display area AA2 in the second direction Y. That is, the data lines are disposed in the second display area AA2 to further improve the light transmittance of the first display area AA 1.
In some embodiments, the first direction X is perpendicular to the second direction Y.
The data driving circuit 120 is disposed in the non-display area NA. The data driving circuit 120 is disposed apart from the first display area AA1 through the second display area AA2 in the second direction Y, and the data driving circuit 120 is connected to the data lines through output lines in a manner that one output line corresponds to one data line. That is, the display panel 100 includes M output lines L1 to Lm.
In the first direction X, a distance between the ith data line and the scan driving circuit 120 is greater than a distance between the (i + 1) th data line and the scan driving circuit 120, a length of an output line corresponding to the ith data line is less than a length of an output line corresponding to the (i + 1) th data line, M is a positive integer, i is a positive integer, and i is less than or equal to M-1.
As shown in fig. 1, in a direction of the scan lines S1 through Sn away from the scan driving circuit 110, i.e., in a direction from right to left in fig. 1, the signal delay time on each scan line is gradually increased, so that the charging rate on each scan line is gradually decreased in the direction from right to left, and thus the brightness of the display panel 100 is gradually increased in the direction from right to left. Further, the lengths of the output lines L1 through Lm are gradually increased in the left-to-right direction, and correspondingly, the signal delays corresponding to the data lines D1 through Dm are gradually increased in the left-to-right direction, so that the charging rates on the data lines D1 through Dm are gradually decreased in the left-to-right direction, and thus the brightness of the display panel 100 is gradually increased in the left-to-right direction. Therefore, the signal delay of the data lines D1-Dm and the signal delay of the scan line compensate each other to offset the brightness difference caused by the signal delay of the two lines, thereby improving the display effect of the display panel.
In some embodiments, the difference between the lengths of any two adjacent output lines is the same value. That is, the difference in length between the output line L2 and the output line L1 is equal to the difference in length between the output line L3 and the output line L2, the difference in length between the output line L4 and the output line L3 is equal to the difference in length between the output line L5 and the output line L4, and so on. As shown in fig. 1, the lengths of the output lines L1 to Lm are gradually increased and the increasing widths are equal in the left-to-right direction, so that the signal delays of the data lines D1 to Dm are uniformly increased in the left-to-right direction, and further, the signal delays of the data lines D1 to Dm and the signal delays of the scan lines are uniformly compensated with each other, thereby further improving the display effect of the display panel.
In some embodiments, the data driving circuit 120 may be disposed at a central position of the non-display area NA, and may also be disposed at an edge position of the non-display area NA. Illustratively, the data driving circuit 120 is located far from the scan driving circuit in the first direction X. That is, the data driving circuit 120 is located at an edge position away from the scan driving circuit 110 in the non-display area NA. Accordingly, the output lines L1 to Lm may be all linear output lines. According to the embodiment of the present invention, the data driving circuit 120 is only required to be located at the edge position away from the scan driving circuit 110 in the non-display area NA, and the output lines L1 to Lm are set as straight lines, so that the lengths of the output lines L1 to Lm can be gradually increased, and the process difficulty and the process cost can be reduced.
In some embodiments, the data driving circuit 120 may be disposed at a central position of the non-display area NA, and accordingly, a part of the output lines L1 to Lm may be disposed as a linear output line, another part may be disposed as a curved output line, and all of the output lines L1 to Lm may be disposed as curved output lines. According to the embodiment of the invention, the lengths of the output lines L1-Lm can be gradually increased only by arranging the types of the output lines L1-Lm, so that the process difficulty and the process cost can be reduced.
In some embodiments, as shown in FIG. 1, the display area is a rectangular display area, and the first display area AA1 is adjacent to two edges of the display area. That is, the first display area AA1 is located at one corner of the display area, and accordingly, only one data driving circuit 120 may be provided.
In some embodiments, as shown in FIG. 2, the first display area AA1 is adjacent to one edge of the display area. Correspondingly, the number of the data driving circuits 120 may be two. Further, the two data driving circuits 120 are disposed opposite to each other.
For example, referring to fig. 2, the two data driving circuits 120 are located in the non-display area NA at a position away from the edge of the scan driving circuit 110, and are separated by the first display area AA1 and the second display area AA 2. Each data driving circuit 120 corresponds to M output lines and M data lines. For example, with the center line of the first display area AA1 in the first direction X as a boundary, one data driving circuit 120 is used to provide data signals to M data lines in the display area above the boundary, another data driving circuit 120 is used to provide data signals to M data lines in the display area below the boundary, and the same scan driving circuit 110 is used to provide scan signals to scan lines in the entire display area. The lengths of the output lines L1 through Lm corresponding to the two data driving circuits 120 are gradually increased from left to right, so that the signal delays of the data lines D1 through Dm in the display area above the boundary and in the display area below the boundary are mutually compensated with the signal delay of the scan line, so as to offset the brightness difference caused by the signal delays of the two lines, thereby improving the display effect of the display panel.
In some embodiments, at least two adjacent output lines are located at different layers. Illustratively, the display panel 100 includes a substrate and a device layer (not shown) disposed on the substrate, wherein the device layer includes a plurality of metal layers disposed in an insulating manner. Illustratively, the scan lines S1-Sn are located at a first metal layer in the device layer, and the data lines D1-Dm are located at a third metal layer in the device layer, and the output line L1 is located at the third metal layer in the device layer. One output line of two adjacent output lines can be located on the third metal layer, and the other output line can be located on the fourth metal layer and is connected with the corresponding data line through a through hole.
According to the embodiment of the invention, two adjacent output lines are positioned in different layers, which is equivalent to increasing the distance between two adjacent output lines in the same layer, so that the two adjacent output lines in the same layer can be prevented from being short-circuited.
In some embodiments, the data driving circuit 120 includes a plurality of output ports P, one output port being connected to one output line.
In some embodiments, the plurality of output ports P are uniformly arranged only along the first direction X, i.e., a row of output ports may be provided.
In other embodiments, the output ports are uniformly arranged along the first direction X and the second direction Y, i.e., a plurality of rows of output ports may be provided.
According to the embodiment of the invention, the output ports are uniformly distributed, so that the length change uniformity of the output lines L1-Lm is further improved, and the display effect of the display panel is further improved.
In some embodiments, the scan driving circuit 110 may be formed using a Gate In Panel (GIP) technique to realize a narrow bezel.
In some embodiments, the data driving circuit 120 may be integrated On a Chip On Film (COF) to realize a narrow bezel.
In some embodiments, the display panel 100 includes a plurality of first and second sub-pixels and a first sub-pixel circuit (not shown). The plurality of first sub-pixels are located in the first display area AA1, and the plurality of second sub-pixels are located in the second display area AA 2. In some embodiments, the size of the first sub-pixel is smaller than the size of a second sub-pixel of the same color. The non-light emitting area in the first display area AA1 is made larger, which facilitates further improvement of the light transmittance of the first display area AA 1. It will be appreciated that in other embodiments, the size of the first sub-pixel is not limited thereto, and may be the same size as the second sub-pixel of the same color, for example.
In some embodiments, the first pixel circuit is located in the second display area AA2, and the first pixel circuit is electrically connected to the first sub-pixel for driving the first sub-pixel to display. In some embodiments, the circuit structure of the first pixel circuit is any one of a 1T circuit, a 2T1C circuit, a 3T1C circuit, a 6T1C circuit, a 6T2C circuit, a 7T1C circuit, a 7T2C circuit, or a 9T1C circuit. Herein, the "2T 1C circuit" refers to a pixel circuit including 2 thin film transistors (T) and 1 capacitor (C) in the pixel circuit, and the other "7T 1C circuit", "7T 2C circuit", "9T 1C circuit", and the like are analogized.
In some embodiments, the first sub-pixel includes a first electrode, a light emitting structure, and a second electrode sequentially stacked. One of the first electrode and the second electrode is an anode, and the other is a cathode. In this embodiment, an example in which the first electrode is an anode and the second electrode is a cathode will be described.
The light emitting structure may include an OLED light emitting layer, and each may further include at least one of a hole injection layer, a hole transport layer, an electron injection layer, or an electron transport layer, respectively, according to design requirements of the light emitting structure.
In some embodiments, the first electrode is a light transmissive electrode. In some embodiments, the first electrode comprises an Indium Tin Oxide (ITO) layer or an Indium zinc Oxide (izo) layer. In some embodiments, the first electrode is a reflective electrode comprising a first light-transmissive conductive layer, a reflective layer on the first light-transmissive conductive layer, and a second light-transmissive conductive layer on the reflective layer. The first and second transparent conductive layers may be ITO, indium zinc oxide, etc., and the reflective layer may be a metal layer, such as made of silver.
In some embodiments, the second electrode comprises a magnesium silver alloy layer. In some embodiments, the second electrodes may be interconnected as a common electrode.
In some embodiments, the projection of each light emitting structure in the direction perpendicular to the lamination direction of the display panel is composed of one first graphic unit or is composed of more than two first graphic units which are spliced, and the first graphic units comprise at least one selected from the group consisting of a circle, an ellipse, a dumbbell, a gourd and a rectangle.
In some embodiments, the projection of each first electrode in the direction perpendicular to the lamination direction of the display panel is composed of one second graphic unit or is composed of more than two second graphic units which are spliced, and the second graphic units comprise at least one selected from the group consisting of a circle, an ellipse, a dumbbell, a gourd and a rectangle.
The periodic structure generated by diffraction can be changed by the shape, namely, the distribution of a diffraction field is changed, so that the diffraction effect generated when external incident light passes through the first display area AA1 is weakened, and the image photographed by a camera arranged below the first display area AA1 is ensured to have higher definition.
For example, the display panel 100 may further include an encapsulation layer, and a polarizer and a cover plate located above the encapsulation layer, or the cover plate may be directly disposed above the encapsulation layer, without disposing a polarizer, or at least the cover plate may be directly disposed above the encapsulation layer of the first display area AA1, without disposing a polarizer, so as to avoid the polarizer from affecting the light collection amount of the photosensitive element disposed below the first display area AA1, and of course, the polarizer may also be disposed above the encapsulation layer of the first display area AA 1.
An embodiment of the present invention further provides a display device, which may include the display panel 100 of any of the above embodiments. The following description will be given taking as an example a display device of an embodiment including the display panel 100 of the above-described embodiment.
Fig. 3 is a schematic top view of a display device according to an embodiment of the present invention, and fig. 4 is a cross-sectional view taken along a line a-a of fig. 3 according to an embodiment of the present invention. In the display device of the present embodiment, the display panel 100 may be the display panel 100 of one of the above embodiments, the display panel 100 has a first display area AA1 and a second display area AA2, and the light transmittance of the first display area AA1 is greater than that of the second display area AA 2.
The display panel 100 includes a first surface S1 and a second surface S2 opposite to each other, wherein the first surface S1 is a display surface. The display device further includes a photosensitive element 200, wherein the photosensitive element 200 is located on the second surface S2 side of the display panel 100, and the photosensitive element 200 corresponds to the first display area AA 1.
The photosensitive assembly 200 may be an image capturing device for capturing external image information. In this embodiment, the photosensitive assembly 200 is a Complementary Metal Oxide Semiconductor (CMOS) image capture Device, and in other embodiments, the photosensitive assembly 200 may also be a Charge-coupled Device (CCD) image capture Device or other types of image capture devices. It is understood that the photosensitive assembly 200 may not be limited to an image capture device, for example, in some embodiments, the photosensitive assembly 200 may also be an infrared sensor, a proximity sensor, an infrared lens, a flood sensing element, an ambient light sensor, a dot matrix projector, and the like. In addition, the display device may further integrate other components, such as a handset, a speaker, etc., on the second surface S2 of the display panel 100.
According to the display device provided by the embodiment of the invention, the light transmittance of the first display area AA1 is greater than that of the second display area AA2, so that the display panel 100 can integrate the photosensitive assembly 200 on the back of the first display area AA1, for example, the photosensitive assembly 200 of an image acquisition device is integrated under a screen, and meanwhile, the first display area AA1 can display pictures, so that the display area of the display panel 100 is increased, and the full-screen design of the display device is realized.
According to the display device of the embodiment of the invention, in the first direction, the distance between the ith data line and the scanning driving circuit is greater than the distance between the (i + 1) th data line and the scanning driving circuit, the length of the output line corresponding to the ith data line is less than the length of the output line corresponding to the (i + 1) th data line, and M is a positive integer. By the arrangement, the signal delay of the data line and the signal delay of the scanning line are mutually offset, the uniformity of the display brightness of the display panel can be improved, and the display quality of the display panel is further improved.
In accordance with the above-described embodiments of the present invention, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A display panel having a display area and a non-display area surrounding the display area, the display area including a first display area and a second display area, a light transmittance of the first display area being greater than a light transmittance of the second display area, the display panel comprising:
the scanning driving circuit is arranged in the non-display area and is arranged at a distance from the first display area through the second display area in a first direction;
n scanning lines extend in the second display area along the first direction, and the scanning lines are connected with the scanning driving circuit;
m data lines extending in a second direction intersecting the first direction in the second display area;
the data driving circuit is arranged in the non-display area, is arranged at a distance from the first display area through the second display area in the second direction, and is connected with the data lines through output lines in a manner that one output line corresponds to one data line;
in the first direction, the distance between the ith data line and the scanning driving circuit is greater than the distance between the (i + 1) th data line and the scanning driving circuit, the length of the output line corresponding to the ith data line is less than the length of the output line corresponding to the (i + 1) th data line, M, N, i is a positive integer, and i is less than or equal to M-1.
2. The display panel according to claim 1, wherein a difference between lengths of any two adjacent output lines is the same value.
3. The display panel according to claim 1, wherein the data driving circuit is located at a position distant from the scan driving circuit in the first direction.
4. The display panel according to claim 1, wherein the output line includes a linear output line and/or a curved output line.
5. The display panel according to claim 1, wherein the display region is a rectangular display region, and the first display region is adjacent to two sides of the display region, or the first display region is adjacent to one side of the display region.
6. The display panel according to claim 1, wherein the number of the data driving circuits is one or two;
and if the number of the data driving circuits is two, the two data driving circuits are arranged oppositely.
7. The display panel according to claim 1, wherein at least two adjacent output lines are located in different layers.
8. The display panel according to claim 1, wherein the data driving circuit includes a plurality of output ports, one of the output ports is connected to one of the output lines, and a plurality of the output ports are arranged uniformly in the first direction, or a plurality of the output ports are arranged uniformly in the first direction and the second direction.
9. The display panel according to claim 1, characterized in that the display panel comprises:
the plurality of first sub-pixels are positioned in the first display area and comprise a first electrode, a light-emitting structure and a second electrode which are sequentially stacked;
the first pixel circuit is positioned in the second display area, is electrically connected with the first sub-pixel and is used for driving the first sub-pixel to display;
a plurality of second sub-pixels located in the second display region;
the size of the first sub-pixel is smaller than that of the second sub-pixel of the same color;
the circuit structure of the first pixel circuit is any one of a 1T circuit, a 2T1C circuit, a 3T1C circuit, a 6T1C circuit, a 6T2C circuit, a 7T1C circuit, a 7T2C circuit, or a 9T1C circuit.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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| CN201911320763.3A CN111833811B (en) | 2019-12-19 | 2019-12-19 | Display panel and display device |
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