CN109087590B - Display panel and display device - Google Patents
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- CN109087590B CN109087590B CN201811241487.7A CN201811241487A CN109087590B CN 109087590 B CN109087590 B CN 109087590B CN 201811241487 A CN201811241487 A CN 201811241487A CN 109087590 B CN109087590 B CN 109087590B
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
Abstract
The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and aims to reduce the number of wires in a transparent area of the display panel. The display panel comprises a light-transmitting area, a first non-display area surrounding the light-transmitting area, a display area surrounding the first non-display area, and a second non-display area surrounding the display area; the display area comprises M groups of first data lines and a plurality of second data lines, the first data lines and the second data lines are arranged along a first direction and extend along a second direction, each group of first data lines comprises first sub data lines and second sub data lines, the first sub data lines and the second sub data lines are located on two sides of the light transmission area along the second direction, the first non-display area comprises a first gating unit, a second gating unit and N first connecting lines, the M first sub data lines pass through the first gating unit, the N first connecting lines are connected, the second gating unit is connected with the M second sub data lines, N is less than M, and M and N are positive integers.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a display panel and a display device.
[ background of the invention ]
With the development of display technology, devices such as a camera and a photosensor are usually disposed in a display panel to enrich the use requirements of users. At present, in order to increase the screen ratio of a display panel, devices such as a camera and a photosensor are usually disposed in a display area of the display panel, as shown in fig. 1, fig. 1 is a schematic view of a display panel in the prior art, wherein the display panel includes a transparent area 1 ', and the devices such as the camera and the photosensor are disposed in the transparent area 1'. In this way, the signal lines including the data lines 2 ' in the display panel need to be disposed by bypassing the transparent region 1 ', which not only results in dense routing around the transparent region 1 ' and easy signal interference, but also increases the width of the non-display region 3 ' at the transparent region 1 '.
[ summary of the invention ]
Embodiments of the present invention provide a display panel and a display device, so as to reduce the number of traces in a transparent area of the display panel.
In one aspect, an embodiment of the present invention provides a display panel, where the display panel includes:
a light-transmitting region, a first non-display region surrounding the light-transmitting region, a display region surrounding the first non-display region, and a second non-display region surrounding the display region;
the display area comprises M groups of first data lines and a plurality of second data lines; the first data line and the second data line are arranged along a first direction and extend along a second direction; wherein the content of the first and second substances,
along the first direction, the second data lines are positioned on two sides of the light-transmitting area;
each group of the first data lines comprises a first sub data line and a second sub data line, and the first sub data line and the second sub data line are positioned on two sides of the light-transmitting area along the second direction;
the first non-display area comprises a first gating unit, a second gating unit and N first connecting lines, wherein the first end of the first gating unit is connected with the first ends of M first sub-data lines, the second end of the first gating unit is connected with the second end of the second gating unit through the N first connecting lines, the first end of the second gating unit is connected with the first ends of M second sub-data lines, N is less than M, and M and N are positive integers.
In another aspect, an embodiment of the present invention provides a display device, which includes the above display panel.
The display panel and the display device provided by the embodiment of the invention have the advantages that the light-transmitting area, the first non-display area surrounding the light-transmitting area, and a display area surrounding the first non-display area and provided with M groups of first data lines and a plurality of second data lines, wherein, along the second direction, the first data line is configured to include a first sub data line and a second sub data line located at two sides of the light-transmitting area, and along the first direction, the second data line is configured to be located at two sides of the light-transmitting area, that is, the first data line and the second data line are arranged to avoid the light-transmitting area, so that the first data line and the second data line can be prevented from affecting the light transmittance of the light-transmitting area, therefore, devices such as a camera and a photoelectric sensor can be arranged in the light-transmitting area, and the use function of the display panel is enriched.
On this basis, the display panel provided in the embodiment of the present invention is configured with the first gating unit and the second gating unit that connect the first sub-data line and the second sub-data line in the first non-display area, wherein the first gating unit and the second gating unit use a demultiplexing (demux) technique, and can provide signals to a plurality of first sub-data lines and/or second sub-data lines by using one first connection line, so that the first sub-data lines and the second sub-data lines on two sides of the light-transmitting area can be connected by the first connection line with a smaller number, thereby avoiding the light-transmitting area from being configured with the first data line, improving the light transmittance of the light-transmitting area, avoiding too many connections being configured around the light-transmitting area, reducing the size of the first non-display area around the light-transmitting area, and enabling more space for pixel arrangement in the display panel, the screen occupation ratio of the display panel is improved. In addition, the embodiment of the invention can also relieve the signal coupling phenomenon between the wires caused by more wires and denser wire arrangement by reducing the number of wires around the light-transmitting area, thereby improving the accuracy and stability of the signals transmitted on the first connecting wire and improving the display effect of the display device.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a display panel in the prior art;
FIG. 2 is a schematic diagram of a display panel according to an embodiment of the present invention;
fig. 3 is an equivalent circuit diagram of a first strobe unit and a second strobe unit according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of a portion of a display panel according to an embodiment of the present invention;
FIG. 5 is a timing diagram of signals corresponding to FIG. 3;
FIG. 6 is an enlarged schematic view of a portion of another display panel according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a display device according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, etc. may be used to describe the non-display areas in the embodiments of the present invention, the non-display areas should not be limited to these terms. These terms are only used to distinguish the non-display areas from each other. For example, the first non-display area may also be referred to as a second non-display area, and similarly, the second non-display area may also be referred to as a first non-display area without departing from the scope of the embodiments of the present invention.
An embodiment of the present invention provides a display panel, as shown in fig. 2, fig. 2 is a schematic diagram of the display panel provided in the embodiment of the present invention, wherein the display panel includes a light-transmitting area 1, a first non-display area 21 surrounding the light-transmitting area 1, a display area 3 surrounding the first non-display area 21, and a second non-display area 22 surrounding the display area 3.
The display area 3 includes M groups of first data lines, such as a first data line 31, first data lines 32 and … …, a first data line 3M (in fig. 2, M is equal to 4 for example), and a plurality of second data lines 30, where the first data line and the second data lines 30 are arranged along a first direction x and extend along a second direction y. Wherein, along the first direction x, the second data lines 30 are located at two sides of the light-transmitting region 1. Each set of first data lines includes a first sub data line and a second sub data line, and the first sub data line and the second sub data line are located on two sides of the light-transmitting area 1 along the second direction y, as shown in fig. 2, the first set of first data lines 31 includes a first sub data line 311 and a second sub data line 312, and the first sub data line 311 and the second sub data line 312 are located on two sides of the light-transmitting area 1 along the second direction y.
With continued reference to fig. 2, the first non-display area 21 includes a first gating unit 41, a second gating unit 42, and N first connection lines, such as a first connection line 51, a first connection line 52, … …, and a first connection line 5N (in fig. 2, N is 2), a first end of the first gating unit 41 is connected to first ends of M first sub data lines, a second end of the first gating unit 41 is connected to a second end of the second gating unit 42 through the N first connection lines, and a first end of the second gating unit 42 is connected to first ends of M second sub data lines, where N < M, and M and N are positive integers.
The display panel provided by the embodiment of the invention has the advantages that the light-transmitting area 1 is arranged in the display panel, the first non-display area 21 surrounding the light-transmitting area 1, and a display area 3 surrounding the first non-display area 21, and M groups of first data lines and a plurality of second data lines 30 are disposed in the display area 3, wherein, along the second direction y, the first data line is configured to include a first sub data line and a second sub data line at two sides of the light-transmitting area 1, along the first direction x, the second data line 30 is configured to be at two sides of the light-transmitting area 1, that is, the embodiment of the invention can prevent the first and second data lines 30 from affecting the light transmittance of the light-transmitting region 1 by disposing the first and second data lines 30 away from the light-transmitting region 1, therefore, devices such as a camera and a photoelectric sensor can be arranged in the light-transmitting area 1, and the use function of the display panel is enriched.
On this basis, the display panel provided in the embodiment of the present invention is configured to have the first gating unit 41 and the second gating unit 42 connecting the first sub data line and the second sub data line in the first non-display area 21, wherein the first gating unit 41 and the second gating unit 42 use a demultiplexing (demux) technology, and can provide signals to a plurality of first sub data lines and/or second sub data lines by using one first connection line, so that the first sub data lines and the second sub data lines on two sides of the light transmission area 1 can be connected by the first connection line with a smaller number, and thus on the basis of avoiding the first data line from the light transmission area 1 and improving the light transmittance of the light transmission area 1, the display panel can also avoid too many connections around the light transmission area 1, the size of the first non-display area 21 around the light transmission area 1 is smaller, and more space can be used for setting pixels in the display panel, the screen occupation ratio of the display panel is improved. In addition, the embodiment of the invention can also relieve the signal coupling phenomenon between the wires caused by more wires and denser wire arrangement by reducing the number of wires around the light-transmitting area 1, thereby improving the accuracy and stability of the signals transmitted on the first connecting wire and improving the display effect of the display panel.
It is understood that the gating ratios of the first gating unit 41 and the second gating unit 42 may be set according to actual requirements, for example, in fig. 2, the gating ratios of the first gating unit 41 and the second gating unit 42 are both 2, that is, signals are provided to two first sub data lines or two second sub data lines through one first connection line as an example, and when the gating ratios of the first gating unit 41 and the second gating unit 42 are set to be 2, only two first connection lines (i.e., the first connection line 51 and the first connection line 52), that is, M is 4, and N is 2, are required for 4 groups of first data lines (i.e., the first data line 31, the first data line 32, the first data line 33, and the first data line 34). Of course, the gating rates of the first gating unit 41 and the second gating unit 42 may be set to other rates, for example, when the gating rates of the first gating unit 41 and the second gating unit 42 are set to 3, signals are supplied to three first sub data lines or three second sub data lines through one first connection line. In view of the simplicity of the illustrated screen, the following description will be given by taking M-4 and N-2 as examples, unless otherwise specified.
Illustratively, the first gating unit includes M/N first switch control signal lines, i.e., a first switch control signal line CKH11, first switch control signal lines CKH12, … …, a first switch control signal line CKH1 (M/N); n groups of first switch element groups, namely a first switch element group K11, a first switch element group K12, … … and a first switch element group K1N, wherein any group of the first switch element group K1i comprises M/N first switch elements, namely a first switch element K1i1, a first switch element K1i2, … … and a first switch element K1i (M/N), wherein the second ends of the M/N first switch elements in the same group of the first switch element group are connected with the same first connection line, different groups of the first switch element groups are connected with different first connection lines, and the control ends of the M/N first switch elements in the same group of the first switch element group are connected with different first switch element control signal lines.
The second gating unit includes M/N second switch control signal lines, i.e., a second switch control signal line CKH21, second switch control signal lines CKH22, … …, and a second switch control signal line CKH2 (M/N); n groups of second switch element groups, namely a second switch element group K21, a second switch element group K22, … … and a second switch element group K2N, wherein any group of the second switch element group K2i comprises M/N second switch elements, namely a second switch element K2i1, a second switch element K2i2, … … and a second switch element K2i (M/N), wherein the second ends of the M/N second switch elements in the same group of the second switch element group are connected with the same first connection line, different groups of the second switch element groups are connected with different first connection lines, and the control ends of the M/N second switch elements in the same group of the second switch element group are connected with different second switch element control signal lines, wherein i is not less than 1 and not more than N, M/N is a positive integer, and i is a positive integer.
Specifically, as shown in fig. 3, fig. 3 is an equivalent circuit diagram of a first gating unit and a second gating unit according to an embodiment of the present invention, where M is 4 and N is 2. The first connection lines include a first connection line 51 and a first connection line 52.
The first gate unit 41 includes two first switch control signal lines, i.e., a first switch control signal line CKH11 and a first switch control signal line CKH12, and two first switch element groups, i.e., a first switch element group K11 and a first switch element group K12, the first switch element group K11 includes two first switch elements, i.e., a first switch element K111 and a first switch element K112, the first switch element group K12 includes two first switch elements, i.e., a first switch element K121 and a first switch element K122, the first switch element group K11 is connected to the first connection line 51, the first switch element group K12 is connected to the first connection line 52, a control terminal of the first switch element K111 in the first switch element group K11 is connected to the first switch control signal line CKH11, and a control terminal of the first switch element K112 in the first switch element group K12 is connected to the first switch control signal line CKH 12. The control terminal of the first switching element K121 in the first switching element group K12 is connected to the first switching control signal line CKH11, and the first switching element K122 in the second switching element group K12 is connected to the first switching control signal line CKH 12.
The second gate unit 42 includes two second switch control signal lines, i.e., a second switch control signal line CKH21 and a second switch control signal line CKH22, and two sets of second switch element groups, i.e., a second switch element group K21 and a second switch element group K22, the second switch element group K21 includes two second switch elements, i.e., a second switch element K211 and a second switch element K212, the second switch element group K22 includes two second switch elements, i.e., a second switch element K221 and a second switch element K222, the second switch element group K21 is connected to the first connection line 51, the second switch element group K22 is connected to the first connection line 52, a control terminal of the second switch element K211 in the second switch element group K21 is connected to the second switch control signal line CKH21, and a control terminal of the second switch element K212 in the second switch element group K22 is connected to the second switch control signal line CKH 22. The control terminal of the second switching element K221 in the second switching element group K22 is connected to the second switching control signal line CKH21, and the second switching element K222 in the second switching element group K22 is connected to the second switching control signal line CKH 22.
In the embodiment of the present invention, the first gating unit and the second gating unit are configured as described above, so that when the display panel displays, if the second sub data lines are directly connected to the driving chip for receiving the data signals provided by the driving chip, for M/N second switching elements in any one group of second switching element groups, the embodiment of the present invention may input signals for turning on the second switching elements to the M/N second switching control signal lines in a time-sharing manner, so that the second switching elements connected to the same second switching control signal line are turned on in a time-sharing manner, and the second sub data lines transmit the data signals to the first gating unit through the first connection lines in a time-sharing manner through the second switching elements turned on in a time-sharing manner. Similarly, for M/N first switch elements in any one group of first switch element groups in the first gating unit, the embodiment of the present invention may time-divisionally input a signal for turning on the first switch element to the M/N first switch control signal lines, so as to time-divisionally turn on the first switch elements connected to the same first switch control signal line, so that the M/N first sub data lines connected to the M/N first switch elements can receive the data signal transmitted from the second gating unit through the first connection lines in a time-divisional manner, so that the transmission of the data signal of the first data line is not affected by the arrangement of the light-transmitting region. The specific operation principle of the display panel will be described in detail later, and will not be described herein again.
Optionally, the first switch control signal line and the second switch control signal line connected to the same group of first data lines are electrically connected, specifically, as shown in fig. 3, the first switch control signal line CKH11 and the second switch control signal line CKH21 connected to the first group of first data lines 31 are electrically connected, and the first switch control signal line CKH12 and the second switch control signal line CKH22 connected to the second group of first data lines 32 are electrically connected. In the embodiment of the present invention, the first switch control signal line and the second switch control signal line connected to the same group of first data lines are electrically connected, so that the first sub data line and the second sub data line separated by the light-transmitting area 1 along the second direction y are electrically connected through the first gating unit 41 and the second gating unit 42 at the same time, and thus the first sub data line and the second sub data line separated by the light-transmitting area 1 along the second direction y receive the same data signal at the same time, which is equivalent to a complete signal line of the group of first data lines, but are not separated into two parts by the light-transmitting area 1. If the first switch control signal line and the second switch control signal line connected to the same group of first data lines are not electrically connected, in order to enable both the first sub data line and the second sub data line to receive the data signal provided by the driver chip, a connection line needs to be separately provided for one of the first sub data line and the second sub data line (generally, one of the first sub data line and the second sub data line close to the driver chip is directly connected to the driver chip, and the other one of the first sub data line and the second sub data line far from the driver chip is separately provided with a connection line to connect the one sub data line to the driver chip, so that the one sub data line receives the data signal, which results in an increase in the number of routing lines in the display panel.
Exemplarily, as shown in fig. 4, fig. 4 is an enlarged schematic view of a partial position of a display panel according to an embodiment of the present invention, where the first non-display area 21 includes a first non-display area 211, a first second non-display area 212, a first third non-display area 213, and a first third non-display area 214, and the first non-display area 211, the light-transmitting area 1, and the first second non-display area 212 are arranged along a first direction x; the first third non-display area 213, the light transmission area 1 and the first third non-display area 214 are arranged along the second direction y; the first connection line is located in the first non-display area 211 and/or the first second non-display area 212. Illustratively, as shown in fig. 4, the first connecting line 51 is located in the first non-display area 211, and the second connecting line 52 is located in the first second non-display area 212. Taking four sets of the first data line groups as an example, in the embodiment of the present invention, by setting the first gating unit 41 and the second gating unit 42, the total number of the traces passing through the first non-display area 211 and the first second non-display area 212 is reduced from 4 to 2, so that the number of the traces is greatly reduced.
Optionally, the first connecting lines may be disposed in a plurality of ways, for example, when N is an even number greater than or equal to 2, along the first direction x, the 1 st to nth/2 nd first connecting lines are located in the first non-display area, and the N/2+1 th to nth first connecting lines are located in the first second non-display area. Or, when N is an odd number greater than or equal to 2, along the first direction x, the 1 st to (N +1)/2 nd first connecting lines are located in the first non-display area, and the (N +3)/2 nd to nth first connecting lines are located in the first second non-display area 212, that is, the plurality of first connecting lines can be distributed in the first non-display area and the first second non-display area as evenly as possible, so that the sizes of the first non-display area and the first second non-display area along the first direction x can be as consistent as possible.
Illustratively, with continued reference to fig. 2, wherein the second non-display area 22 includes a second non-display area 221, a second non-display area 222, a second non-display area 223, and a second non-display area 224; the second non-display area 221, the display area 3, and the second non-display area 222 are arranged along the first direction x, the second sub-display area 223, the display area 3, and the second non-display area 224 are arranged along the second direction y, and the second non-display area 224 includes the driving chip 8. The display area 3 further comprises a plurality of scanning lines 7 extending along the first direction x and arranged along the second direction y, the scanning lines 7 are arranged in a crossed and insulated manner with the first data lines and the second data lines 30, and the display panel further comprises second connecting lines 6. As shown in fig. 4, the driving chip 8 is connected to the first switch control signal line in the first gate unit 41 and the second switch control signal line of the second gate unit 42 through the second connection line 6.
With continued reference to fig. 2, the scan lines 7 include a first scan line 71 and a second scan line 72, and the first scan line 71 and the second scan line 72 are located at two sides of the light-transmitting region 1 along the first direction x. The second non-display area 221 includes a first gate driving unit 2210, the first gate driving unit 2210 is connected to the first scan line 71, the second non-display area 222 includes a second gate driving unit 2220, and the second gate driving unit 2220 is connected to the second scan line 72. In the embodiment of the present invention, the first gate driving unit 2210 and the second gate driving unit 2220 are respectively disposed in the second non-display area 221 and the second non-display area 222, the first gate driving unit 2210 is connected to the first scanning line 71, and the second gate driving unit 2220 is connected to the second scanning line 72, that is, the first scanning line 71 and the second scanning line 72 located at two sides of the light transmissive area 1 along the first direction x are respectively driven in a bilateral driving manner, so as to ensure normal display of the display area 3, avoid disposing the scanning lines in the light transmissive area 1, and ensure light transmittance of the light transmissive area 1.
Referring to fig. 5, fig. 5 is a signal timing diagram corresponding to fig. 3, and a driving method of a display panel according to an embodiment of the present invention is described below:
in the on time of one of the scanning lines 7i corresponding to the first sub data line:
in the first period t1, under the action of the control signal output from the first switch control signal line CKH11, the first switch element K111 and the first switch element K121 connected to the first switch control signal line CKH11 are turned on, the second switch element K211 and the second switch element K221 connected to the first second switch control signal line CKH21 are turned on, so that the first sub data line 311 and the second sub data line 312 included in the first group of first data lines 31 are connected through the first gating cell 41, the second gating cell 42 and the first connecting line 51, and the first sub data line and the second sub data line included in the third group of first data lines 33 are connected through the first gating cell 41, the second gating cell 42 and the first connecting line 52, at this time, since one of the scan lines corresponding to the first sub data lines is turned on, the sub data signals are charged into the sub pixels connected to the scan lines and the first sub data lines included in the first group of first data lines, charging data signals into sub-pixels connected with first sub-data lines included in the scanning line and a third group of first data lines;
in the 2 nd period t2, under the action of the control signal output from the second first switch control signal line CKH12, the first switch element K112 and the first switch element K122 connected to the second first switch control signal line CKH12 are turned on, the second switch element K212 and the second switch element K222 connected to the second switch control signal line CKH22 are turned on, so that the first sub data line and the second sub data line included in the second group of first data lines 32 are connected through the first gate unit 41, the second gate unit 42 and the first connecting line 51, and the first sub data line and the second sub data line included in the fourth group of first data lines 34 are connected through the first gate unit 41, the second gate unit 42 and the second first connecting line 52, at this time, since one of the scan lines corresponding to the first sub data lines is turned on, the sub pixel data signal connected to the scan line and the first sub data line included in the second group of first data lines is charged, and charging a data signal to a sub-pixel connected to the first sub-data line included in the scan line and the fourth group of first data lines.
Then, the next scanning line corresponding to the first sub data line is scanned again, the first switch control signal line CKH11 and the first switch control signal line CKH12 sequentially output control signals according to the above sequence, and the operation continues according to the above time sequence within the turn-on time of each scanning line. Until the scanning line corresponding to the second sub data line is scanned, in the starting time of one scanning line 7j corresponding to the second sub data line:
in the first period t1, under the action of the control signal output from the first switch control signal line CKH11, the first switch element K111 and the first switch element K121 connected to the first switch control signal line CKH11 are turned on, the second switch element K211 and the second switch element K221 connected to the first second switch control signal line CKH21 are turned on, so that the first sub data line 311 and the second sub data line 312 included in the first group of first data lines 31 are connected through the first gating cell 41, the second gating cell 42 and the first connecting line 51, and the first sub data line and the second sub data line included in the third group of first data lines 33 are connected through the first gating cell 41, the second gating cell 42 and the first connecting line 52, at this time, since one of the scanning lines corresponding to the second sub data lines is turned on, the sub data pixel data signal connected to the scanning line and the second sub data line included in the first group of first data lines is charged, charging data signals into sub-pixels connected with second sub-data lines included in the scanning line and a third group of first data lines;
in the 2 nd period t2, under the action of the control signal output from the second first switch control signal line CKH12, the first switch element K112 and the first switch element K122 connected to the second first switch control signal line CKH12 are turned on, the second switch element K212 and the second switch element K222 connected to the second switch control signal line CKH22 are turned on, so that the first sub data line and the second sub data line included in the second group of first data lines 32 are connected through the first gate unit 41, the second gate unit 42 and the first connecting line 51, and the first sub data line and the second sub data line included in the fourth group of first data lines 34 are connected through the first gate unit 41, the second gate unit 42 and the second first connecting line 52, at this time, since one of the scan lines corresponding to the second sub data line is turned on, the sub pixel data signal connected to the scan line and the second sub data line included in the second group of first data lines is charged, and charging a data signal to a sub-pixel connected to the scan line and a second sub-data line included in the fourth group of first data lines.
Then, the next scanning line corresponding to the second sub data line is scanned, and the first switch control signal line CKH11 and the first switch control signal line CKH12 sequentially output control signals according to the above sequence. And in the starting time of each scanning line, the operation is continued according to the above time sequence. Until the scanning line corresponding to the light-transmitting area 1 is scanned, scanning the area of the display panel except the light-transmitting area 1 according to the working mode of the prior art, wherein the working principle of the stage is the same as that of the prior art, and the description is omitted here.
For example, the first switch element and the second switch element may include a P-type transistor and/or an N-type transistor, and when the P-type transistor is selected, the first switch control signal line and the second switch control signal line output low level signals to control the first switch element and the second switch element to be turned on; when the N-type transistor is selected, the first switch control signal line and the second switch control signal line output high-level signals to control the first switch element and the second switch element to be conducted.
It is to be understood that the timing of outputting the control signal by the first switch control signal line is not limited to the sequence from the first switch control signal line CKH11 to the first switch control signal line CKH12, but may be performed in the sequence of the first switch control signal line CKH12 and the first switch control signal line CKH 11.
Optionally, the arrangement positions of the first switch control signal line and the second switch control signal line may be selected in various ways, and correspondingly, the position of the second connection line 6 may also be selected in various ways. For example, as shown in fig. 4, the first switch control signal line CKH11 and the first switch control signal line CKH12 are located in the first non-display area 213, and the second switch control signal line CKH21 and the second switch control signal line CKH22 are located in the first non-display area 214; the second connection line 6 extends from the first non-display area 213 and/or the first non-display area 214 (the first non-display area 214 is taken as an example in fig. 4) to the second non-display area 224 along the second direction y through the display area 3 and is connected to the driving chip 8 in a binding manner. With such an arrangement, the number of the traces in the second non-display area 22 can be reduced, which is beneficial to narrow frame design. In addition, in the embodiment of the present invention, the second connection line 6 is disposed on the same layer as the data line 31, and the second connection line 6 is not overlapped with the data line 31, so that the space in the display area 3 can be reasonably utilized, the second connection line 6 extending along the second direction y is prevented from being crossed with other signal lines including the scan line 7, and the accuracy and stability of signal transmission on each signal line are ensured.
Alternatively, the first switch control signal line and the second switch control signal line may extend to the first non-display area along the first direction x, and then extend to be bound with the driving chip through the first non-display area. As shown in fig. 6, fig. 6 is an enlarged schematic view of a partial position of another display panel according to an embodiment of the present invention, wherein a first switch control signal line and a second switch control signal line extend from the first second non-display area 212 to the second non-display area 222 along the first direction x through the display area 3; the second connecting line 6 extends from the second non-display area 222 to the second non-display area 224 along the second direction y. Of course, the first switch control signal line and the second switch control signal line may also extend from the first non-display area 211 to the second non-display area 222 through the display area 3 along the first direction x; accordingly, the second connecting line 6 extends from the second non-display area 222 to the second non-display area 214 along the second direction y. The embodiment of the invention can reduce the number of the wires in the display area 3 as much as possible, uses more space in the display area 3 for setting pixels and improves the screen occupation ratio of the display panel. In addition, the first switch control signal line, the second switch control signal line and the scanning line are arranged on the same layer; and the first switch control signal line and the second switch control signal line are not overlapped with the scanning line, so that the space in the display area 3 can be reasonably utilized, the first switch control signal line and the second switch control signal line which extend along the first direction x are prevented from being crossed with other signal lines including the first data line and the second data line, and the accuracy and the stability of signal transmission on each signal line are ensured.
Illustratively, the shape of the light-transmitting region 1 may be designed into any shape including a circle, an ellipse or a rectangle according to different use requirements.
Fig. 7 is a schematic view of a display device according to an embodiment of the present invention, where the display device includes the display panel 100, and the display panel 100 includes the light-transmitting area 1, where a specific structure of the display panel 100 has been described in detail in the above embodiments, and is not repeated herein. Of course, the display device shown in fig. 7 is only a schematic illustration, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
The display device provided by the embodiment of the invention has the advantages that the light-transmitting area 1 is arranged in the display panel, the first non-display area surrounding the light-transmitting area 1, and a display area surrounding the first non-display area and provided with M groups of first data lines and a plurality of second data lines, wherein, along the second direction, the embodiment of the present invention sets the first data lines to include the first sub data lines and the second sub data lines positioned at both sides of the light-transmitting area 1, and along the first direction, the embodiment of the present invention sets the second data lines to be positioned at both sides of the light-transmitting area 1, that is, the embodiment of the invention can prevent the first data line and the second data line from affecting the light transmittance of the light-transmitting region 1 by disposing the first data line and the second data line away from the light-transmitting region 1, therefore, devices such as a camera and a photoelectric sensor can be arranged in the light-transmitting area 1, and the use function of the display panel is enriched.
On this basis, the display device provided in the embodiment of the present invention is configured to provide the first gating unit and the second gating unit, which connect the first sub-data line and the second sub-data line, in the first non-display area, wherein the first gating unit and the second gating unit use a demultiplexing (demux) technology, and can provide signals to a plurality of first sub-data lines and/or second sub-data lines by using one first connection line, so that the first sub-data lines and the second sub-data lines on two sides of the light-transmitting area 1 can be connected by the first connection line with a smaller number, thereby avoiding the light-transmitting area 1 from being configured to avoid the light-transmitting area 1, improving the light transmittance of the light-transmitting area 1, avoiding too many routing lines around the light-transmitting area 1, reducing the size of the first non-display area around the light-transmitting area 1, and enabling more space in the display panel for setting pixels, the screen occupation ratio of the display panel is improved. In addition, the embodiment of the invention can also relieve the signal coupling phenomenon among the wires caused by more wires and denser arrangement by reducing the number of the wires around the light-transmitting area, thereby improving the accuracy and stability of the signals transmitted on the first connecting wire and improving the display effect of the display device.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (11)
1. A display panel, comprising:
a light-transmitting region, a first non-display region surrounding the light-transmitting region, a display region surrounding the first non-display region, and a second non-display region surrounding the display region;
the display area comprises M groups of first data lines and a plurality of second data lines; the first data line and the second data line are arranged along a first direction and extend along a second direction; wherein the content of the first and second substances,
along the first direction, the second data lines are positioned on two sides of the light-transmitting area;
each group of the first data lines comprises a first sub data line and a second sub data line, and the first sub data line and the second sub data line are positioned on two sides of the light-transmitting area along the second direction;
the first non-display area comprises a first gating unit, a second gating unit and N first connecting lines; the first end of the first gating unit is connected with the first ends of the M first sub-data lines, the second end of the first gating unit is connected with the second end of the second gating unit through the N first connecting lines, and the first end of the second gating unit is connected with the first ends of the M second sub-data lines; wherein N < M, and M and N are positive integers.
2. The display panel according to claim 1,
the first gating unit includes:
M/N first switch control signal lines;
n groups of first switch element groups, wherein each group of first switch element groups comprises M/N first switch elements, wherein the second ends of the M/N first switch elements in the same group of first switch element groups are connected with the same first connecting line, and different groups of first switch element groups are connected with different first connecting lines; the control ends of M/N first switch elements in the same group of first switch element groups are connected with different first switch control signal lines;
the second gating unit includes:
M/N second switch control signal lines;
n groups of second switch element groups, wherein each group of second switch element groups comprises M/N second switch elements, wherein the second ends of the M/N second switch elements in the same group of second switch element groups are connected with the same first connecting line, different groups of second switch element groups are connected with different first connecting lines, and the control ends of the M/N second switch elements in the same group of second switch element groups are connected with different second switch control signal lines; M/N is a positive integer.
3. The display panel according to claim 2, wherein the first switch control signal line and the second switch control signal line connected to the same group of the first data lines are electrically connected.
4. The display panel according to claim 3,
the first non-display area comprises a first non-display area A, a first non-display area B, a first non-display area C and a first non-display area D;
the first non-display area A, the light-transmitting area and the first non-display area B are arranged along the first direction;
the first third non-display area, the light-transmitting area and the first third non-display area are arranged along the second direction;
the display area comprises a plurality of scanning lines which extend along the first direction and are arranged along the second direction, and the scanning lines are arranged in a crossed and insulated mode with the first data lines and the second data lines;
the second non-display area comprises a driving chip;
the display panel further comprises a second connecting line, and the driving chip is connected with the first switch control signal line and the second switch control signal line through the second connecting line.
5. The display panel according to claim 4, wherein the first connection line is located in the first A non-display region and/or the first B non-display region.
6. The display panel according to claim 5,
when N is an even number greater than or equal to 2, along the first direction, the 1 st to the N/2 th first connecting lines are positioned in the first non-display area; the Nth/2 +1 to Nth first connecting lines are positioned in the first second non-display area;
when N is an odd number greater than or equal to 2, along the first direction, the 1 st to (N +1)/2 th first connecting lines are positioned in the first non-display area; the (N +3)/2 th to nth connecting lines are located in the first second non-display area.
7. The display panel according to claim 4,
the second non-display area comprises a second non-display area, a second dipropylene non-display area and a second non-display area;
the second non-display area, the display area and the second non-display area are arranged along the first direction;
the second non-display area, the display area and the second non-display area are arranged along the second direction;
the driving chip is positioned in the second non-display area;
the scanning lines comprise a first scanning line and a second scanning line, and the first scanning line and the second scanning line are positioned on two sides of the light-transmitting area along the first direction;
the second non-display area comprises a first grid driving unit, and the first grid driving unit is connected with the first scanning line;
the second non-display area comprises a second grid driving unit, and the second grid driving unit is connected with the second scanning line.
8. The display panel according to claim 7,
the first switch control signal line is positioned in the first non-display area, and the second switch control signal line is positioned in the first non-display area;
the second connecting line extends from the first data line and the second data line to the second data line from the first display area and/or the first display area along the second direction through the display area, the second connecting line is arranged on the same layer as the first data line and the second data line, and the second connecting line is not overlapped with the first data line and the second data line.
9. The display panel according to claim 7,
the first switch control signal line and the second switch control signal line extend from the first non-display area to the second non-display area along the first direction through the display area; and/or the first switch control signal line and the second switch control signal line extend from the first second non-display area to the second non-display area along the first direction through the display area;
the first switch control signal line and the second switch control signal line are arranged in the same layer as the first scanning line and the second scanning line; and the first switch control signal line and the second switch control signal line do not overlap with the first scan line and the second scan line;
the second connecting line extends from the second non-display area and/or the second diethyl non-display area to the second non-display area along the second direction.
10. The display panel according to claim 1, wherein the shape of the light-transmitting region comprises a circle, an ellipse, or a rectangle.
11. A display device characterized in that the display device comprises the display panel according to any one of claims 1 to 10.
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| KR20200104972A (en) * | 2019-02-27 | 2020-09-07 | 삼성디스플레이 주식회사 | Display image |
| CN110097827A (en) * | 2019-04-10 | 2019-08-06 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN109979366B (en) * | 2019-04-10 | 2022-07-19 | 京东方科技集团股份有限公司 | OLED display panel, detection method thereof and display device |
| TWI690914B (en) * | 2019-05-17 | 2020-04-11 | 友達光電股份有限公司 | Pixel array substrate |
| CN110728921B (en) * | 2019-10-31 | 2022-01-07 | Oppo广东移动通信有限公司 | Display device and electronic apparatus |
| CN112863414A (en) * | 2019-11-26 | 2021-05-28 | 上海和辉光电有限公司 | Display panel and driving method thereof |
| CN110969943A (en) * | 2019-11-27 | 2020-04-07 | 厦门天马微电子有限公司 | Display panel and display device |
| CN111161639B (en) * | 2020-01-03 | 2022-04-19 | 厦门天马微电子有限公司 | Display panel and display device |
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