CN112509509B

CN112509509B - Display panel, driving method thereof and display device

Info

Publication number: CN112509509B
Application number: CN202011381581.XA
Authority: CN
Inventors: 朱绎桦; 赖青俊; 陈国照
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2024-03-08
Anticipated expiration: 2040-11-30
Also published as: CN112509509A

Abstract

The invention discloses a display panel, a driving method thereof and a display device, and relates to the technical field of display. The first display area in the display panel comprises pixel units and first data signal lines; the pixel unit comprises a color sub-pixel and a white sub-pixel, and the first data signal line is electrically connected with the white sub-pixel; the non-display area comprises a first driving circuit, and the first driving circuit comprises a first signal output unit, a second signal output unit and a third signal output unit; the first and second signal output units transmit a first driving signal to the white sub-pixels to drive the white sub-pixels to be in a state of allowing external light to enter; the third signal output unit transmits a second driving signal to the white sub-pixel to drive the white sub-pixel to be in a state of preventing external light from entering. The first driving circuit is used for controlling the scanning of the white sub-pixels in the first display area by area, so that the interference on the public voltage signal generated during polarity switching is reduced/avoided, and the display effect and the light transmittance of the first display area are ensured.

Description

Display panel, driving method thereof and display device

Technical Field

The invention relates to the technical field of display, in particular to a display panel, a driving method thereof and a display device.

Background

With the development of display technology, display panels have higher and higher screen occupation ratios, and comprehensive screens are receiving a great deal of attention due to the display effect of narrow frames or even no frames. At present, display devices such as mobile phones and tablet computers often need to reserve space for commonly used electronic photosensitive devices such as front cameras, infrared sensing devices and fingerprint identification devices on the front face. For example, the photosensitive devices are arranged at positions where the front surface of the display device is biased to the top, and the corresponding positions form non-display areas, so that the screen ratio of the device is reduced.

In the prior art, in order to improve the screen ratio, a display area of a display panel may be provided with a high light transmission area to accommodate the photosensitive device. For example, the camera is arranged below the screen and correspondingly arranged in the high light transmission area. During normal display, the high light transmission area can play a display role; when photographing or video shooting is needed, the camera shoots a picture or video through the high light transmission area, and the high light transmission area can synchronously realize the functions of display and shooting. However, in the prior art, when the high light transmission area is switched from the shooting function to the display function, a problem of poor display is likely to occur.

Disclosure of Invention

In view of the above, the present invention provides a display panel, a driving method thereof, and a display device for improving the problem of adverse effect on normal display when the light-transmitting area is switched to the display state in the lower display panel.

In a first aspect, the present application provides a display panel, including a display area, a non-display area at least partially surrounding the display area, the display area including a first display area and a second display area at least partially surrounding the first display area, the first display area having a light transmittance that is greater than a light transmittance of the second display area;

the first display area comprises a plurality of pixel units which are arranged in an array manner and a plurality of first data signal lines which are arranged in a row direction and extend in a column direction, and the row direction and the column direction are intersected; at least part of the pixel units comprise at least one color sub-pixel and one white sub-pixel, and the first data signal lines are electrically connected with the white sub-pixels;

the non-display region includes a first driving circuit for driving the white sub-pixel in the first display region, the first driving circuit including a first signal output unit, a second signal output unit, and a third signal output unit;

The first signal output unit and the second signal output unit transmit a first driving signal to the white sub-pixel through at least part of the first data signal line, and the first driving signal is used for driving the white sub-pixel to be in a state of allowing external light to enter; the third signal output unit transmits a second driving signal to the white sub-pixel through at least part of the first data signal line, and is used for driving the white sub-pixel to be in a state of preventing external light from entering.

In a second aspect, the present application provides a driving method of a display panel, the driving method being used for the display panel; the method comprises a shooting stage and a display stage;

in the shooting stage, a first signal output unit and a second signal output unit in a first driving circuit transmit a first driving signal to a white sub-pixel in a first display area through at least part of a first data signal line, and drive the corresponding white sub-pixel to be in a state of allowing external light to enter;

in the display stage, a third signal output unit in the first driving circuit transmits a first driving signal to the white sub-pixels in the first display area through at least part of the first data signal lines, and drives the corresponding white sub-pixels to be in a state of preventing external light from entering.

In a third aspect, the present application provides a display apparatus including a display panel and a light sensing device;

the orthographic projection of the light sensing device on the light emitting surface of the display panel is located in the first display area.

Compared with the prior art, the display panel, the driving method thereof and the display device provided by the invention have the advantages that at least the following beneficial effects are realized:

in the display panel, a first driving circuit for driving a white sub-pixel in a first display area is arranged in a non-display area, and the first driving circuit can independently drive the white sub-pixel in the first display area to be in a state of allowing external light or in a state of preventing external light from entering; meanwhile, the first driving circuit can realize the area-by-area scanning control of the white sub-pixels receiving signals with different polarities in the first display area, so that the problem of larger parasitic capacitance generated after the white sub-pixel capacitance is superposed when all the white sub-pixels receiving signals with the same polarity in the first display area are driven by the same signal line is avoided; the problem of larger capacitance is avoided, so that interference of parasitic capacitance on a public voltage signal during polarity switching is reduced/avoided, and the normal display effect of the first display area can be ensured; and the arrangement of the white sub-pixels in the first display area enables the effect that the first display area transmits outside light to be better.

Of course, it is not necessary for any one product embodying the invention to achieve all of the technical effects described above at the same time.

Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic diagram of a display panel according to an embodiment of the present application;

FIG. 2 is an enlarged view of area A of FIG. 1, provided in accordance with an embodiment of the present application;

FIG. 3 is a diagram illustrating a combination of the prior art provided by an embodiment of the present application and the area A of FIG. 1;

FIG. 4 is another enlarged view of area A of FIG. 1 provided in an embodiment of the present application;

FIG. 5 is another enlarged view of area A of FIG. 1 provided in an embodiment of the present application;

FIG. 6 is another enlarged view of area A of FIG. 1 provided in an embodiment of the present application;

FIG. 7 is another enlarged view of area A of FIG. 1 provided in an embodiment of the present application;

fig. 8 is a schematic diagram illustrating another arrangement of the pixel units in fig. 6 according to an embodiment of the present application;

Fig. 9 is a schematic diagram illustrating another arrangement of the pixel units in fig. 6 according to an embodiment of the present application;

fig. 10 is a schematic diagram illustrating another arrangement of the pixel units in fig. 6 according to an embodiment of the present application;

FIG. 11 is a schematic diagram illustrating another arrangement of the pixel units in FIG. 6 according to an embodiment of the present disclosure;

FIG. 12 is a schematic diagram showing an arrangement of the second data signal lines in FIG. 6 according to an embodiment of the present disclosure;

fig. 13 is another schematic view of a display panel according to an embodiment of the disclosure;

fig. 14 is a specific block diagram of a shift register in a display panel according to an embodiment of the present application;

FIG. 15 is a driving timing chart corresponding to FIG. 14 according to an embodiment of the present disclosure;

fig. 16 is a schematic diagram of a display device according to an embodiment of the present application.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the prior art, the display area of the display panel has a trend of at least one light-transmitting area, so that in order to improve the light transmittance of the light-transmitting area, the size of the white sub-pixels in the light-transmitting area is often set to be larger, but no switch unit is used for controlling the white sub-pixels individually; white sub-pixels of all odd columns in a light transmission area are connected together, and white sub-pixels of all even columns are connected together; at this time, the parasitic capacitance of each column of white sub-pixels corresponds to the superposition of the capacitances of all the white sub-pixels receiving the same polarity signal or driven by the same signal line in the light-transmitting area, so that the capacitance of each column of white sub-pixels is relatively large. Therefore, it is desirable to provide a circuit for driving a white sub-pixel in a light-transmitting region, which can avoid the above problems.

Fig. 1 is a schematic diagram of a display panel provided in an embodiment of the present application, referring to fig. 1, a display panel 100 includes a display area 10, a non-display area 20 at least partially surrounding the display area 10, the display area 10 includes a first display area 11 and a second display area 12 at least partially surrounding the first display area 11, and a light transmittance of the first display area 11 is greater than a light transmittance of the second display area 12;

the first display area 11 includes a plurality of pixel units 13 arranged in an array and a plurality of first data signal lines S1 arranged in a row direction and extending in a column direction, the row direction intersecting the column direction; at least part of the pixel units 13 include at least one color sub-pixel 132 and one white sub-pixel 131, and the first data signal line S1 is electrically connected to the white sub-pixel 131;

the non-display area 20 includes a first driving circuit 30 for driving the white sub-pixel 131 in the first display area 11, the first driving circuit 30 including a first signal output unit 31, a second signal output unit 32, and a third signal output unit 33;

The first signal output unit 31 and the second signal output unit 32 transmit a first driving signal to the white subpixel 131 through at least part of the first data signal line S1 for driving the white subpixel 131 in a state allowing external light to enter; the third signal output unit 33 transmits a second driving signal to the white subpixel 131 through at least part of the first data signal line S1 for driving the white subpixel 131 in a state of preventing external light from entering.

Specifically, the present application provides a display panel 100 including a display region 10 and a non-display region 20, at least a portion of the non-display region 20 being disposed around the display region 10; wherein the display area 10 comprises a first display area 11 and a second display area 12, the second display area 12 being at least partially arranged around the first display area 11. Specifically, the light transmittance of the first display area 11 is set to be greater than the light transmittance of the second display area 12, for example, the pixel density in the first display area 11 can be set to be less than the pixel density in the second display area 12; or the pixel densities of the first display area 11 and the second display area 12 may be set to be the same, but the area of the light-transmitting sub-pixel in the first display area 11 is set to be larger than the area of the light-transmitting sub-pixel in the second display area 12.

The first display area 11 includes a plurality of pixel units 13 arranged in an array, and a plurality of first data signal lines S1 arranged in a row direction and extending in a column direction, wherein the row direction and the column direction intersect, and the drawing is taken as an example in which the row direction and the column direction are perpendicular. Each pixel unit 13 in the first display area 11 includes at least one color sub-pixel 132 and one white sub-pixel 131, and at least part of the first data signal line S1 is used for electrically connecting each white sub-pixel 131 in the first display area 11, and is used for transmitting a driving signal to each white sub-pixel 131. The area of the white sub-pixel 131 in at least part of the pixel units 13 can be selectively set to be larger than the area of the color sub-pixel 132, and when the sub-pixels included in the second display area 12 also include the white sub-pixel, the area of the white sub-pixel 131 in the first display area 11 can be set to be larger than the area of the white sub-pixel in the second display area 12, which is beneficial to making the effect of the first display area 11 transmitting the external light better.

The non-display area 20 in the present application is provided with a first driving circuit 30, where the first driving circuit 30 is used for driving each white sub-pixel 131 in the first display area 11, and the first driving circuit 30 specifically includes at least a first signal output unit 31, a second signal output unit 32, and a third signal output unit 33. The first signal output unit 31 and the second signal output unit 32 are configured to transmit a first driving signal to the white sub-pixel 131 in the first display area 11 through a portion of the first data signal line S1, where the first driving signal is used to drive the white sub-pixel 131 in the first display area 11 to be in a state allowing external light to enter, that is, the first driving signals transmitted by the first signal output unit 31 and the second signal output unit 32 to the white sub-pixel 131 in the first display area 11 can make the first display area 11 of the display panel 100 become a light-transmitting area, and the light-transmitting area can be used as a camera area for image capturing, for example, at this time, external light can enter into the display panel 100 through the first display area 11 and be acquired by the display panel 100. The third signal output unit 33 is configured to transmit a second driving signal to the white sub-pixel 131 in the first display area 11 through a portion of the first data signal line S1, where the second driving signal is used to drive the white sub-pixel 131 in the first display area 11 to be in a state of preventing external light from entering, that is, the second driving signal transmitted by the third signal output unit 33 to the white sub-pixel 131 in the first display area 11 can make the first display area 11 of the display panel 100 have no effect of transmitting external light, and can be used as a conventional display area 10, and at this time, the first display area 11 and the second display area 12 can be combined into a display area of an entire display panel for conventional display of pictures. The display device can realize the common control of the first display area and the second display area by selecting the same driving chip, so that the number of the driving chips is reduced, the manufacturing cost of the display panel is reduced, and meanwhile, the occupied space for setting components in the display panel is reduced; in addition, at least two driving chips may be respectively disposed for controlling the first display area and the second display area, which is not particularly limited in this application.

Optionally, the first data signal line S1 electrically connected to the third signal output unit 33 is at least partially shared with the first data signal line S1 electrically connected to the first signal output unit 31 and the second signal output unit 32; or the first data signal line S1 electrically connected to the third signal output unit 33 is the first data signal line S1 electrically connected to the first signal output unit 31 and the second signal output unit 32. The first data signal lines S1 electrically connected to the first signal output unit 31, the second signal output unit 32, and the third signal output unit 33 are disposed in the above manner, which is advantageous for reducing the number of the first data signal lines S1 required to be disposed in the first display area 11, thereby being advantageous for improving the aperture ratio of the first display area 11, and improving the light transmission effect of the first display area 11 and the resolution in normal display. Of course, the present application is not limited in particular to this, but the foregoing is merely an alternative embodiment provided by the present application.

In fig. 1 of the present application, the first display area 11 in the display panel 100 is only exemplified by a rounded rectangle, but the present application is not limited to the shape of the first display area 11, and may be, for example, a circle, a square, or other polygons. In addition, fig. 1 shows that the first display area 11 is located above the center of the display panel 100, and the installation position, area, etc. of the first display area 11 in the display panel 100 are not particularly limited, so long as the first display area 11 is located inside the display area 10, and the user can adjust the first display area according to the needs.

By providing the first driving circuit 30 for independently controlling part of the functions of the first display area 11, the first driving circuit 30 can independently realize driving of the white sub-pixels 131 in the first display area 11 in a state of allowing external light to enter or driving of the white sub-pixels in a state of preventing external light from entering; meanwhile, the first driving circuit 30 can realize the area-by-area scanning control on the white sub-pixels 131 which receive signals with different polarities in the first display area 11, so that the problem that parasitic capacitance generated after the white sub-pixel capacitance is overlapped is large when all the white sub-pixels 131 which receive signals with the same polarity in the first display area 11 are driven by the same signal line is avoided; the problem of larger parasitic capacitance in the sub-pixel columns is avoided, so that interference on a public voltage signal generated during polarity switching is reduced/avoided, and the normal display effect of the first display area 11 can be ensured; and the arrangement of the white sub-pixels 131 in the first display area 11 can make the effect that the first display area 11 transmits the external light better.

It should be noted that, fig. 1 shows an example in which one pixel unit 13 includes one white sub-pixel 131 and three color sub-pixels 132, but the number of the color sub-pixels 132 included in one pixel unit 13 is not limited in this application, and may include 1, 2, 3, 4, etc. for example, which may be adjusted by a user according to actual needs. In fig. 1, only 3 equally large color sub-pixels 132 are regularly arranged below one white sub-pixel 131, and the arrangement of the white sub-pixels 131 and the color sub-pixels 132 in one pixel unit 13 is not limited.

Fig. 2 is an enlarged view of the area a in fig. 1 provided in the embodiment of the present application, referring to fig. 1 and 2, optionally, the first signal output unit 31 includes at least one shift register 311, and the signal output end 41 of the shift register 311 is electrically connected to at least a portion of the white sub-pixels 131 in the first display area 11 through at least one first data signal line S1.

Specifically, please refer to fig. 1 and 2, the first driving circuit 30 for driving the white sub-pixels 131 in the first display area 11 provided in the present application includes at least one shift register 311, the signal output end 41 of each shift register 311 is electrically connected to a portion of the white sub-pixels 131 in the first display area 11 through a first data signal line S1, and the shift register 311 is configured to transmit a first driving signal to a portion of the white sub-pixels 131 in the first display area 11, so as to drive a portion of the white sub-pixels 131 to be in a state allowing external light to enter.

It should be noted that the number of shift registers 311 provided in the non-display area 20 of the display panel 100 is not limited, and the number of white sub-pixels 131 in the first display area 11 electrically connected to one shift register 311 is not limited. The present application provides an alternative way, where at least two shift registers 311 are provided for driving the white sub-pixels 131 in the first display area 11, where one shift register 311 is used for transmitting a first driving signal to a part of the white sub-pixels 131 in the first display area 11, and another shift register 311 is used for transmitting a first driving signal to another part of the white sub-pixels 131 in the first display area 11, so that the partition driving of the white sub-pixels 131 in the first display area 11 of the display panel 100 can be implemented; for example, as shown in fig. 2, if four columns of sub-pixel units 13 are included in the first display area 11, two shift registers 311 may be provided, and the signal output terminal 41 of each shift register 311 is electrically connected to a portion of the white sub-pixels 131 in the first display area 11 through the first data signal line S1, so as to facilitate the area-by-area scanning control of a portion of the white sub-pixels 131 in the first display area 11. Therefore, the first driving circuit 30 can scan the white sub-pixels 131 receiving signals with different polarities in the first display area 11 in a region-by-region manner, so that the problem that parasitic capacitance generated after the superposition of white sub-pixel capacitances is large when all the white sub-pixels 131 receiving signals with the same polarity in the first display area 11 are driven by the same signal line is avoided, interference of the large parasitic capacitance on a public voltage signal generated during polarity switching is reduced/avoided, and normal display effect of the first display area 11 can be ensured.

Fig. 3 is a combination of the prior art provided in the embodiment of the present application and the area a in fig. 1, and referring to fig. 1 and 3, another alternative way is to drive a part of the white sub-pixels 131 (for example, two columns of white sub-pixels on the right side shown in fig. 3) in the first display area 11 through the first driving circuit 30, and the rest of the white sub-pixels 131 in the first display area 11 are still driven by the prior art, so that the above-mentioned technical effect of the partition driving of all the white sub-pixels 131 in the first display area 11 can be achieved; that is, the white sub-pixels receiving the same polarity signal in the first display area 11 are driven in a partitioning manner, which is favorable for avoiding the problem of larger parasitic caused by the superposition of the capacitances of the white sub-pixels, reducing/avoiding the interference of the parasitic capacitance on the common voltage signal caused by the polarity switching of the white sub-pixels, and ensuring the normal display effect of the first display area. It should be noted that, in the prior art, there is no driving circuit for individually controlling the white sub-pixels, all odd columns of the white sub-pixels are connected together, and all even columns are connected together, so that the capacitance of each column of white sub-pixels is relatively large, and when the polarity of the signal received by the white sub-pixels is switched, a certain interference is easily generated on the common voltage signal for controlling the white sub-pixels, which is not beneficial to the normal display of the picture when the light transmission area is switched to the display state.

Referring to fig. 1 and 2, it should be further noted that, when the first signal output unit 31 in the first driving circuit 30 is the shift register 311, at least one of the second signal output unit 32 and the third signal output unit 33 may be selected as the remaining components not electrically connected to the shift register 311. That is, the first signal output unit 31 and the second signal output unit 32 for transmitting the first driving signal to at least part of the white sub-pixels 131 in the first display area 11 may be independent signal output terminals, and the third signal output unit 33 and the first signal output unit 31 and the second signal output unit 32 may be independent signal output terminals, respectively. For example, in an alternative arrangement shown in fig. 2, the shift register 311 and the second signal output unit 32 have an electrical connection relationship, and at this time, the driving signal output by the shift register 311 of the first signal output unit 31 can be converted into a driving signal with opposite polarity by the arrangement of the second signal output unit 32, so that transmission of two signals (such as positive voltage and negative voltage respectively) with different polarities to the white sub-pixel 131 in the first display area 11 is further realized, which is beneficial to improving the space occupation rate of the non-display area 20 for setting the first driving circuit 30, and is beneficial to simplifying the structure of the first driving circuit 30.

Fig. 4 is an enlarged view of the area a in fig. 1 provided in the embodiment of the present application, referring to fig. 1 and 4, optionally, the second signal output unit 32 includes at least one inverter 321 disposed corresponding to the shift register 311, a first end 42 of the inverter 321 is electrically connected to the signal output end 41 of the shift register 311, and a second end 43 of the inverter 321 is electrically connected to at least a portion of the white sub-pixels 131 in the first display area 11 through at least one first data signal line S1.

Specifically, the first driving circuit 30 for driving the white sub-pixel 131 in the first display area 11 provided in the present application may include at least one inverter 321 disposed corresponding to the shift register 311, that is, in the scheme provided herein, the inverter 321 in the second signal output unit 32 is disposed in a one-to-one correspondence with the shift register 311 in the first signal output unit 31, the first end 42 of each inverter 321 is electrically connected to the signal output end 41 of the corresponding shift register 311, and the second end 43 of each inverter 321 is electrically connected to at least a part of the white sub-pixel 131 in the first display area 11 through at least one first data signal line S1, for transmitting the first driving signal to a part of the white sub-pixel 131 in the first display area 11 through the shift register 311, the inverter 321, and a transmission path of the first data signal line S1.

It should be noted that, when the second signal output unit 32 includes the inverter 321 disposed corresponding to the shift registers 311, at this time, the signal output end 41 of each shift register 311 is directly and electrically connected to a portion of the white sub-pixels 131, and at the same time, the signal output end 41 of each shift register 311 is connected to another portion of the white sub-pixels 131 through the corresponding inverter 321, so that the first driving signal transmitted to the white sub-pixels 131 can be transmitted to two signals (e.g. positive voltage and negative voltage) having different polarities of the white sub-pixels 131 in the first display area 11 through two paths by using each shift register 311 as the signal output end. That is, the driving signals with opposite polarities received by the different white sub-pixels 131 can be all used as the input ports of the signals by the shift register 311, and the transmission of the signals with opposite polarities to the different white sub-pixels 131 is realized by arranging the inverter 321 on the way of the shift register 311 for transmitting the signals to the first display area 11, which is beneficial to improving the space occupation rate of the non-display area 20 for arranging the first driving circuit 30, simplifying the structural design of the first driving circuit 30, and improving the manufacturing efficiency of the display panel 100.

Fig. 5 is another enlarged view of the area a in fig. 1 provided in the embodiment of the present application, referring to fig. 1 and 5, optionally, the third signal output unit 33 includes a first voltage signal line 331, and the first voltage signal line 331 is electrically connected to each white sub-pixel 131 in the first display area 11 through the first data signal line S1.

Specifically, the third signal output unit 33 includes a first voltage signal line 331, and the first voltage signal line 331 may be electrically connected to each of the white sub-pixels 131 in the first display area 11 through the first data signal line S1, and transmit a second driving signal to each of the white sub-pixels 131 in the first display area 11 through the first voltage signal line 331 for driving each of the white sub-pixels 131 in the first display area 11 to be in a state of preventing external light from entering.

That is, the first display area 11 of the display panel 100 is in a state allowing external light to enter, by the shift register 311 directly transmitting the first driving signal (e.g., a positive voltage signal) to a portion of the white sub-pixels 131, and the shift register 311 transmitting the first driving signal (e.g., a negative voltage signal) to another portion of the white sub-pixels 131 through the inverter 321; the first display area 11 of the display panel 100 is in a state of blocking the entry of external light by directly transmitting the second driving signal to each white subpixel 131 through the first voltage signal line 331. Obviously, the driving signals received by the first display area 11 in the state of allowing the external light to enter and the state of preventing the external light from entering are realized by different components, so that time-sharing driving of the state of allowing the external light to enter and the state of preventing the external light from entering can be realized, that is, switching between the state of allowing the external light to enter and the state of preventing the external light from entering of the first display area 11 is realized, which is beneficial to guaranteeing the diversity of the states of the first display area 11 of the display panel 100.

FIG. 6 is another enlarged view of area A of FIG. 1 provided in an embodiment of the present application; referring to fig. 1 and 6, optionally, the first driving circuit 30 further includes a reset signal line 351 and a plurality of transmission gates 352;

the transmission gate 352 is disposed at the signal output terminal 41 of the shift register 311 and the second terminal 43 of the inverter 321; all the transmission gates 352 are connected in series, and a reset signal line 351 is electrically connected to at least one transmission gate 352 for controlling the opening and closing of each transmission gate 352.

Specifically, the first driving circuit 30 for driving the first display area 11 of the display panel 100 in a state allowing or preventing the entry of external light, further includes a reset signal line 351 and a plurality of transfer gates 352; when the shift register 311 in the display panel 100 is directly electrically connected to the white subpixel 131 in the first display area 11, the present application also provides a structure in which a transmission gate 352 is disposed at the signal output terminal 41 of the shift register 311; meanwhile, when the shift register 311 is electrically connected to the white subpixel 131 in the first display area 11 through the inverter 321, the present application provides a structure in which one transfer gate 352 is disposed at the second end 43 of the inverter 321, i.e., at a side of the inverter 321 remote from the shift register 311. Meanwhile, the transmission gates 352 electrically connected to the shift register 311 and the inverter 321 are all connected in series, and one of the transmission gates 352 electrically connected in series is connected through a reset signal line 351 (fig. 6 shows that the reset signal line 351 is electrically connected to the rightmost one of the transmission gates 352), so as to transmit a reset driving signal to the transmission gate 352 through the reset signal line 351, for controlling the opening and closing of each of the transmission gates 352.

That is, in the present application, by adding the transfer gate 352 connected to the reset signal line 351 to the signal output terminal 41 of the shift register 311 and the second terminal 43 of the inverter 321, each transfer gate 352 can be controlled to be in an on state or an off state by the reset driving signal transmitted to the transfer gate 352 through the reset signal line 351. When the transfer gate 352 is in an on state, the shift register 311 and the shift register 311 can transmit the first driving signal to the white sub-pixel 131 in the first display area 11 through the inverter 321, and when the transfer gate 352 is in an off state, the shift register 311 and the shift register 311 cannot transmit the first driving signal to the white sub-pixel 131 in the first display area 11 through the inverter 321, thereby realizing control of whether the first driving signal can be transmitted to the white sub-pixel 131 in the first display area 11. By adding the reset signal line 351 and the transmission gate 352, the integrity control of whether the shift register 311 can transmit the first driving signal to the first display area 11 is realized, and the control mode of the first driving signal is simplified, thereby being beneficial to improving the control efficiency of signal transmission in the display panel.

With continued reference to fig. 1 and fig. 6, optionally, the first driving circuit 30 further includes a plurality of sub-switches 353, and the reset signal line 351 is electrically connected to the control terminal 361 of each sub-switch 353 and is used for controlling the on/off of each sub-switch 353;

The first terminal 362 of each sub-switch 353 is electrically connected to the first voltage signal line 331, and the second terminal 363 is electrically connected to the first data signal line S1.

Specifically, the first driving circuit 30 for driving the white sub-pixel 131 in the first display area 11 further includes a plurality of sub-switches 353, wherein a first end 362 of each sub-switch 353 is electrically connected to the first voltage signal line 331, a second end 363 of each sub-switch 353 is electrically connected to each first data signal line S1 of the white sub-pixel 131 in the first display area 11, and simultaneously, a reset signal line 351 is electrically connected to a control end 361 of each sub-switch 353 for transmitting a reset driving signal to each sub-switch 353, controlling the sub-switch 353 to be turned on and off, and further controlling the driving signal transmitted by the first voltage signal line 331 to be transmitted to the white sub-pixel 131 in the first display area 11; that is, the third signal output unit 33 is implemented to transmit the second driving signal to the white subpixel 131 through the first data signal line S1 for driving the white subpixel 131 in a state of preventing the entry of external light.

Therefore, the present application realizes the overall control of whether the first voltage signal line 331 can transmit the second driving signal into the first display area 11 through the addition of the reset signal line 351 and each sub-switch 353, and simplifies the control mode of the second driving signal; meanwhile, the first driving signal and the second driving signal can be simultaneously controlled to be transmitted to the first display area by the reset driving signal transmitted by the reset signal line 351, so that the control efficiency of signal transmission in the display panel is improved.

Referring to fig. 2 to 6, optionally, in the first display area 11, the white sub-pixel 131 includes a first white sub-pixel 1311 and a second white sub-pixel 1312 receiving driving signals with opposite polarities within the same frame time; the shift register 311 is electrically connected to all first white sub-pixels 1311 in at least one column of pixel cells 13 via a transfer gate 352, and to all second white sub-pixels 1312 in at least one column of pixel cells 13 via an inverter 321 and a transfer gate 352.

Specifically, the white sub-pixel 131 in the first display area 11 includes a first white sub-pixel 1311 and a second white sub-pixel 1312 that receive driving signals with opposite polarities within the same frame time, in other words, when the white sub-pixel 131 in the first display area 11 receives the first driving signal, the first white sub-pixel 1311 that receives the first driving signal transmitted by the shift register 311 through the transmission gate 352, and the second white sub-pixel 1312 that receives the first driving signal transmitted by the shift register 311 through the inverter 321 and the transmission gate 352 are divided. In this application, the first white sub-pixel 1311, the second white sub-pixel 1312 and the first driving circuit 30 are electrically connected in such a way that the shift register 311 is electrically connected to all the first white sub-pixels 1311 in at least one column of pixel units 13 through the transmission gate 352 by the first data signal line S1, and the shift register 311 is electrically connected to all the second white sub-pixels 1312 in at least one column of pixel units 13 through the inverter 321 and the transmission gate 352 by the first data signal line S1.

Fig. 2-6 of the present application show an embodiment in which one shift register 311 is electrically connected to all first white sub-pixels 1311 in a column of pixel units 13 in the first display area 11 through a transmission gate 352 via a first data signal line S1, and one shift register 311 is electrically connected to all second white sub-pixels 1312 in a column of pixel units 13 in the first display area 11 through an inverter 321 and a transmission gate 352 via a first data signal line S1; fig. 7 is another enlarged view of the area a in fig. 1 provided in the embodiment of the present application, please refer to fig. 1 and 7, fig. 7 of the present application shows an embodiment in which one shift register 311 may be electrically connected to all first white sub-pixels 1311 in two rows of pixel units 13 in the first display area 11 through the transmission gate 352 and the first data signal line S1, and one shift register 311 may be electrically connected to all second white sub-pixels 1312 in two rows of pixel units 13 in the first display area 11 through the inverter 321, the transmission gate 352 and the first data signal line S1.

That is, the number of columns of the white sub-pixels 131 electrically connected to one shift register 311 is not particularly limited, and the user can adjust accordingly according to the requirement. And during a frame time, for example, the signal received by the first white subpixel 1311 is a positive voltage, then the signal received by the second white subpixel 1312 is a negative voltage of opposite polarity. The arrangement of the inverter 321 changes the signals transmitted from the same shift register 311 into two signals with opposite polarities, and the two signals are transmitted to the corresponding first white sub-pixel 1311 and second white sub-pixel 1312, and the transmission of the signals with opposite polarities to different white sub-pixels 131 is realized through the simple arrangement of the first driving circuit 30, so that the space occupation rate of the non-display area 20 for arranging the first driving circuit 30 is improved, the structural design of the first driving circuit 30 is simplified, and the manufacturing efficiency of the display panel 100 is improved.

Referring to fig. 2 to 7, alternatively, the white sub-pixels 131 in the same column are the first white sub-pixels 1311 or the second white sub-pixels 1312, and the first white sub-pixels 1311 and the second white sub-pixels 1312 are alternately arranged along the row direction.

Specifically, the arrangement manner of the white sub-pixels 131 in the first display area 11 provided herein is that the white sub-pixels 131 in the same column are all the first white sub-pixels 1311, i.e. for example, the white sub-pixels 131 in the same column all receive positive voltage signals, while the white sub-pixels 131 in the same column are all the second white sub-pixels 1312, for example, the white sub-pixels 131 in the same column all receive negative voltage signals; at this time, the first white sub-pixels 1311 and the second white sub-pixels 1312 may be alternately arranged along the row direction, that is, an arrangement manner in which a row of the first white sub-pixels 1311, a row of the second white sub-pixels 1312, a row of the first white sub-pixels 1311, and a row of the second white sub-pixels 1312 are alternately arranged.

The arrangement of the white sub-pixels 131 in the first display area 11 is beneficial to uniform transmission of the first driving signals with opposite polarities, so that the stability of switching each white sub-pixel 131 in the first display area 11 to a state allowing external light to enter is facilitated, and the stability of switching each white sub-pixel 131 in the first display area 11 to a state preventing external light from entering is also facilitated; that is, the stability of the first display area 11 for switching between the normal screen display state and the light transmission state is ensured, which is advantageous for improving the usability of the display panel 100.

Fig. 8 is a schematic diagram illustrating another arrangement of the pixel units in fig. 6 according to the embodiment of the present application, and fig. 9 is a schematic diagram illustrating another arrangement of the pixel units in fig. 6 according to the embodiment of the present application, referring to fig. 1, fig. 6, and fig. 8 to fig. 9, optionally, the first display area 11 includes a plurality of pixel groups 60 arranged along a column direction, and each pixel group 60 includes a first pixel row 61 and a second pixel row 62 arranged along the column direction; in each pixel group 60, the white sub-pixels 131 in the first pixel row 61 and the white sub-pixels 131 in the second pixel row 62 are staggered by a first distance D in the row direction, and the first distance D is greater than or equal to the width of any one color sub-pixel 132 in the row direction and less than the width of any one white sub-pixel 131 in the row direction.

Specifically, the present application further provides another arrangement manner of the first white sub-pixel 1311 and the second white sub-pixel 1312 in the first display area 11, specifically, the first display area 11 includes a plurality of pixel groups 60 arranged along the column direction, each pixel group 60 includes a first pixel row 61 and a second pixel row 62 arranged along the column direction, and the white sub-pixels 131 in the first pixel row 61 and the white sub-pixels 131 in the second pixel row 62 may be arranged in each pixel group 60 and staggered by a first distance D in the row direction; the present application provides an optional range of the first distance D, where the first distance D is greater than the width of any one color sub-pixel 132 along the row direction, that is, the first distance D is greater than the width of any one of the first color sub-pixel 1321, the second color sub-pixel 1322, and the third color sub-pixel 1323 as shown in fig. 8 or 9 along the row direction, and is less than the width of any one white sub-pixel 131 along the row direction; therefore, each first white subpixel 1311 adjacently disposed in the same pixel column has a certain overlap, and polarities of signals received by the first white subpixels 1311 in the same column with the overlap are the same, so that transmission of the first driving signals to the first white subpixels 1311 in the same column by using the same first data signal line S1 is facilitated. Similarly, the arrangement of the white sub-pixels 131 provided in the present application also makes a certain overlap between the second white sub-pixels 1312 adjacently disposed in the same pixel row, and polarities of signals received by the second white sub-pixels 1312 in the same overlapping row are the same, so that the transmission of the first driving signal to the second white sub-pixels 1312 in the same row by using the same first data signal line S1 is facilitated.

Note that, in each pixel group 60 in the embodiment shown in fig. 8, the second pixel row 62 is shifted to the left with respect to the first pixel row 61 along the row direction, or the first pixel row 61 is shifted to the right with respect to the second pixel row 62 along the row direction, so that the white sub-pixel 131 located at the rightmost side in the second pixel row 62 exceeds the white sub-pixel 131 located at the rightmost side in the first pixel row 61 by the first distance D. In some alternative embodiments of the present invention, the relationship between the first pixel row 61 and the second pixel row 62 may be further embodied, for example, please refer to fig. 9, fig. 9 is a schematic diagram showing a pixel arrangement of the first display area 11 in the display panel 100 according to an embodiment of the present invention, where the leftmost white subpixel 131 in the first pixel row 61 exceeds the leftmost white subpixel 131 in the second pixel row 62 by a first distance D, which is also within the scope of the present invention.

In the pixel groups 60, the white sub-pixels 131 in the first pixel row 61 and the white sub-pixels 131 in the second pixel row 62 are staggered by the first distance D in the row direction, which is also beneficial to avoiding the problem of poor flicker when the white sub-pixels 131 are in a state of preventing external light from entering, that is, when the first display area 11 is in a display state.

It should be noted that, the first color sub-pixel 1321, the second color sub-pixel 1322, and the third color sub-pixel 1323 may represent, for example, a red sub-pixel, a green sub-pixel, and a blue sub-pixel, respectively, but the application is not limited thereto, and the user may adjust the specific color, the area size, the number, the shape, and the like of each color sub-pixel 132 in each pixel unit 13 according to specific requirements, so long as the effect of displaying the image in combination with the white sub-pixel 131 in the first display area 11 in a state of preventing the external light from entering is provided.

Fig. 10 is a schematic diagram illustrating another arrangement of the pixel units in fig. 6 according to the embodiment of the present application, and referring to fig. 1, fig. 6 and fig. 10, alternatively, the first white sub-pixels 1311 and the second white sub-pixels 1312 are alternately arranged along the row direction, and the first white sub-pixels 1311 and the second white sub-pixels 1312 are alternately arranged along the column direction.

Specifically, the present application also provides an arrangement manner of the white sub-pixels 131 in the first display area 11, specifically, the first white sub-pixels 1311 and the second white sub-pixels 1312 are alternately arranged along the row direction and the column direction, i.e., in the row direction, the electrical signals connected to, for example, all odd rows of white subpixels 131, exhibit a "+ - + -" arrangement, the electrical signals connected to the white sub-pixels 131 of all even rows exhibit a "- ++" arrangement; whereas, in the column direction, for example, the electrical signals connected to the white sub-pixels 131 of all odd columns exhibit a "+ - + -" arrangement, the electrical signals connected to the white sub-pixels 131 of all even columns exhibit a "- ++" arrangement. The white sub-pixels 131 receiving signals with different polarities in the first display area 11 are alternately arranged in the row direction and the column direction, which is favorable for guaranteeing the uniformity of the signals received by the white sub-pixels 131 in the first display area 11, improving the display effect of the first display area 11 of the display panel 100 when the first display area 11 is in a state of preventing external light from entering, avoiding the problem that when the first display area 11 is in a state of allowing external light to enter, the pixel liquid crystal is easily polarized due to long-time video shooting, avoiding the problem of shooting a flicker picture, and improving the effect of the white sub-pixels 131 in a state of allowing external light to enter and transmitting the external light.

Referring to fig. 1, 6 and 11, optionally, the first display area 11 includes a plurality of pixel groups 60 arranged along a row direction, and each pixel group 60 includes a first pixel column 63 and a second pixel column 64 arranged along the row direction; in each pixel group 60, the first pixel column 63 and the second pixel column 64 are offset by a first distance D in the column direction, and the first distance D is greater than or equal to the height of any color sub-pixel 132 in the column direction and less than the height of any white sub-pixel 131 in the column direction.

Specifically, the arrangement manner of the white sub-pixels 131 in the first display area 11 is further provided, specifically, the first display area 11 includes a plurality of pixel groups 60 arranged along the row direction, each pixel group 60 includes a first pixel column 63 and a second pixel column 64, where the first pixel column 63 and the second pixel column 64 are arranged in a staggered manner along the row direction, and the staggered distance between the first pixel column 63 and the second pixel column 64 is a first distance D, and the first distance D is greater than or equal to the height of any one of the first color sub-pixel 1321, the second color sub-pixel 1322 and the third color sub-pixel 1323 along the row direction and is smaller than the height of the white sub-pixel 131 along the row direction, so that the even white sub-pixel 131 in the first pixel column 63 and the odd white sub-pixel 131 in the second pixel column 64 have the same polarity of the signal received by the two white sub-pixels 131, and the polarity of the signal received by the two white sub-pixels 131 is the same, so that the two overlapping polarities of the white sub-pixels 131 are formed by the first pixel column 63 and the second pixel column 64 are conveniently connected electrically.

Note that, in each pixel group 60 in the embodiment shown in fig. 11, the second pixel column 64 is shifted downward with respect to the first pixel column 63 along the column direction, or the first pixel column 63 is shifted upward with respect to the second pixel column 64 along the column direction, so that the white sub-pixel 131 located at the top of the first pixel column 63 exceeds the white sub-pixel 131 located at the top of the second pixel column 64 by the first distance D. In some alternative embodiments of the present invention, the relationship between the first pixel column 63 and the second pixel column 64 may also be embodied as other, for example, the top white subpixel 131 of the second pixel column 64 exceeds the top white subpixel 131 of the first pixel column 63 by a first distance D (not shown) which is also within the scope of the present invention.

It should be noted that, in the display panel 100 provided by the present invention, in the first display area 11, the sizes and shapes of the first color sub-pixel 1321, the second color sub-pixel 1322 and the third color sub-pixel 1323 are the same, and the sizes and shapes of the white sub-pixels 131 are the same, so that the manufacturing work of the display panel 100 is simplified, and the production efficiency is improved. Optionally, the first color subpixel 1321, the second color subpixel 1322, and the third color subpixel 1323 of the present invention may be respectively embodied as a red subpixel, a green subpixel, and a blue subpixel to implement multicolor display of the first display area 11. Of course, the present application is not limited thereto, and the user can adjust the specific color, area size, number, shape, etc. of each color sub-pixel 132 in each pixel unit 13 according to specific requirements, so long as the effect of displaying the image in combination with the effect that the white sub-pixel 131 is in the state of preventing the external light from entering the first display area 11 can be achieved.

Referring to fig. 11, alternatively, each white sub-pixel 131 corresponds to a pixel electrode, and the n+1th white sub-pixel 131 in the first pixel column 63 is electrically connected to the pixel electrode of the nth white sub-pixel 131 in the second pixel column 64 disposed adjacent thereto, wherein n is greater than or equal to 1 and n is an integer.

Specifically, each white subpixel 131 corresponds to one pixel electrode, in the adjacent first pixel column 63 and second pixel column 64, the electrical signal connected to the white subpixel 131 in the first pixel column 63 presents "+ - + -" arrangement, the electrical signal connected to the white subpixel 131 in the second pixel column 64 presents "- + - +" arrangement, the pixel electrode of the white subpixel 131 connected to the negative signal in the first pixel column 63 and the pixel electrode of the white subpixel 131 connected to the second pixel column 64 connected to the positive signal in the second pixel column 63 connected to the positive signal in the first pixel column 63 is electrically connected to the pixel electrode of the white subpixel 131 connected to the positive signal in the second pixel column 64 connected to the positive signal in the diagonal direction, so that only one first data signal line S1 needs to be introduced to provide a positive electrical signal to the white subpixel 131 in the second pixel column 63 connected to the positive signal receiving the positive subpixel 131; similarly, only one first data signal line S1 needs to be introduced for the second pixel column 64 to supply a negative electric signal that will be able to be simultaneously supplied to the white sub-pixel 131 receiving the negative electric signal in the first pixel column 63 adjacent to the second pixel column 64. Therefore, the design is beneficial to saving the number of the first data signal lines S1 in the first display area 11 and reducing the space occupied by the first data signal lines S1 in the first display area 11, thereby being beneficial to further improving the transmittance of the first display area 11.

Referring to fig. 10 and 11, optionally, a bridge member 80 is further included, and two pixel electrodes electrically connected to each other are electrically connected through the bridge member 80.

Specifically, the pixel electrodes corresponding to the white sub-pixels 131 may be disposed on the same layer, and when two different pixel electrodes in the first pixel column 63 and the second pixel column 64 need to be electrically connected, the two pixel electrodes may be electrically connected through the bridge member 80; the present application provides an alternative way in which the bridge member 80 is disposed in different layers from the pixel electrodes, and the bridge member 80 is electrically connected to the corresponding pixel electrodes through vias. It should be noted that, the present application does not limit the specific film layer arrangement relation of the bridge component 80 and the corresponding electrically-remembered pixel electrode, and only needs to implement different layer arrangement of the bridge component 80 and the pixel electrode, so as to avoid interference on the electrical signals of the adjacent pixel electrodes which do not need to be connected by the bridge component 80, and be beneficial to guaranteeing the stability of receiving the electrical signals by each white subpixel 131 and each color subpixel 132 in the first display area 11, and improving the stability of allowing the external light to enter the first display area 11 and preventing the external light from entering the first display area 11, thereby being beneficial to improving the effect of transmitting the external light and the effect of displaying the picture normally.

In addition, referring to fig. 11, when the white sub-pixels 131 in the first display area 11 are arranged in the row direction and the column direction, the first white sub-pixels 1311 and the second white sub-pixels 1312 are alternately arranged, and the first pixel columns 63 and the second pixel columns 64 are staggered by the first distance D in the column direction, the bridge member 80 and the pixel electrode may be arranged in the same layer. In this way, the fabrication of the bridge member 80 can be completed while fabricating the pixel electrodes, and the electrical connection between the pixel electrodes can be completed without introducing a separate film structure and fabrication process for the bridge member 80, so that the fabrication process of the display panel 100 when the bridge member 80 is introduced into the first display region 11 is greatly simplified, thereby being beneficial to improving the production efficiency of the display panel 100.

Fig. 12 is a schematic diagram showing an arrangement of the second data signal lines in fig. 6 according to the embodiment of the present application, referring to fig. 1, 6 and 12, optionally, the display area 10 includes a plurality of second data signal lines S2 arranged along a row direction and extending along a column direction, and each second data signal line S2 is electrically connected to all color sub-pixels 132 of the same color in the same column;

at least one second data signal line S2 is included between two adjacent white sub-pixels 131 arranged in the row direction.

Specifically, the display area 10 further includes a plurality of second data signal lines S2 extending in the same direction as the first data signal lines S1, that is, each of the second data signal lines S2 is arranged in the row direction and extends in the column direction, and all of the color sub-pixels 132 of the same color in the same column are electrically connected through each of the second data signal lines S2, in other words, for example, the first sub-second data signal lines S21 are electrically connected to all of the first color sub-pixels 1321 located in the same column, the second sub-second data signal lines S22 are electrically connected to all of the second color sub-pixels 1322 located in the same column, and the third sub-second data signal lines S23 are electrically connected to all of the third color sub-pixels 1323 located in the same column. By means of the arrangement, the same color sub-pixels 132 in the same column can be driven through one second data signal line S2, the arrangement quantity of the second data signal lines S2 is saved, the space occupied by the second data signal lines S2 in the display area 10 is reduced, the effective display area of the display area 10 is improved, and the overall display effect of the display panel 100 is improved.

The present application also provides an optional specific arrangement manner of the second data signal lines S2, in which, when at least one second data signal line S2 extends along the column direction, the whole line body is located in a region between the white sub-pixels 131 adjacently arranged along the row direction, so as to avoid that the orthographic projection of the second data signal line S2 on the light-emitting surface of the display panel 100 is located in the orthographic projection of the white sub-pixel 131 on the light-emitting surface of the display panel 100; in this way, the transmittance of the white sub-pixel 131 in the state of allowing the external light to enter can be improved, and the display effect of the screen display when the white sub-pixel 131 is in the state of preventing the external light from penetrating can be facilitated.

Fig. 13 is another schematic diagram of a display panel according to an embodiment of the present application, optionally, the non-display area 20 includes a first non-display area 21, and the first driving circuit 30 is located in the first non-display area 21;

the first non-display area 21 is located in the extending direction of the first data signal line S1 and is close to one side of the first display area 11.

Specifically, in one embodiment provided in the present application, the non-display area 20 of the display panel 100 includes a first non-display area 21, and the first driving circuit 30 is disposed in the area of the first non-display area 21, that is, the first driving circuit 30 for independently driving the white sub-pixels 131 in the first display area 11 occupies only a part of the space of the non-display area 20, so that the space of the non-display area 20 of the display panel 100 is saved, which is beneficial to the design requirement of narrow frame of the display panel 100.

More specifically, the first non-display area 21 for setting the first driving circuit 30 provided in the present application is located in the extending direction of the first data signal line S1 and is simultaneously set on one side close to the first display area 11, which is favorable for reducing the wiring length required when the first data signal line S1 is electrically connected to the first driving circuit 30, avoiding the winding of the first data signal line S1 in the non-display area 20 and the partial display area 10, and is favorable for reducing the space that the first data signal line S1 occupies the non-display area 20 and the partial display area 10, and improving the effective screen display area of the whole display panel 100.

With continued reference to fig. 13, optionally, the first non-display area 21 includes a signal trace area 81, an empty area 82 and a ground line 83 sequentially disposed along a direction away from the display area 10, and the shift register 311 is located in the empty area 82.

Specifically, since the lower frame of the display panel 100 needs to be provided with a driving chip, a flexible circuit board and a plurality of driving signal lines, the lower frame may be used to provide a space for the first driving circuit 30, and the extending direction of the first data signal line S1 is the extending direction of the upper frame of the display panel 100 pointing to the lower frame, so the application can selectively provide the first driving circuit 30 on the upper frame of the display panel 100. Along the column direction, the upper frame of the display panel 100 includes a signal routing area 81, an empty area 82 and a ground wire 83 which are sequentially arranged along the direction away from the display area 10, wherein the empty area 82 in the upper frame is a wireless area for ensuring the etching uniformity of the frame area of the display panel, the empty areas 82 are generally arranged in punctiform square blocks, and each square block is not connected with each other and is not used for connecting or transmitting any signal; it should be further noted that the dot-shaped square of the empty region 82 is generally disposed in a metal layer of the display panel. According to the display panel display device, at least part of the shift register 311 in the first driving circuit 30 is arranged in the empty area 82, the area of the empty area 82 is efficiently utilized, and meanwhile, a new empty area 82 is not required to be arranged for a frame area of the display panel, so that the space of the non-display area 20 required by the first driving circuit 30 arranged in the first non-display area 21 is reduced, even the whole first driving circuit 30 can be arranged in the empty area 82, the increase of the area of the non-display area 20 of the display panel 100 on the basis of the prior art is avoided, the design requirement of narrow frame formation of the display panel 100 is still guaranteed on the basis of independent driving of the first display area 11 is met, and the occupation ratio of the effective picture display area of the display panel 100 is improved.

Referring to fig. 1 to 13 in combination, based on the same inventive concept, the present application further provides a driving method of the display panel 100, where the driving method is used for the aforementioned display panel 100, and the display panel 100 is any one of the display panels 100 provided in the present application; the driving method comprises a shooting stage and a display stage;

in the photographing stage, the first signal output unit 31 and the second signal output unit 32 in the first driving circuit 30 transmit the first driving signal to the white sub-pixels 131 in the first display area 11 through at least part of the first data signal line S1, driving the corresponding white sub-pixels 131 to be in a state allowing external light to enter;

in the display stage, the third signal output unit 33 in the first driving circuit 30 transmits the first driving signal to the white sub-pixels 131 in the first display area 11 through at least part of the first data signal line S1, driving the corresponding white sub-pixels 131 to be in a state of preventing external light from entering.

Specifically, the present application also provides a driving method of the display panel 100 for any one of the aforementioned display panels 100 based on the same inventive concept, and a repeated explanation of the display panel 100 will not be provided herein.

The driving method of the display panel 100 provided by the present application includes a driving method for a photographing stage and a driving method for a display stage; since the first display area 11 of the display panel 100 provided by the present application may have an ambient light entering permission state and an ambient light blocking state, the first display area 11 allows the ambient light entering state to correspond to the photographing stage, and the first display area 11 blocks the ambient light entering state to correspond to the display stage.

The driving method specifically described herein is directed to the first display area 11 in the display panel 100, in the photographing stage, the first signal output unit 31 and the second signal output unit 32 included in the first driving circuit 30 transmit the first driving signal to the white sub-pixels 131 in the first display area 11, and the transmission of the first driving signal is implemented through the first data signal line S1 provided in the display panel 100 for electrically connecting the first signal output unit 31 and the second signal output unit 32, each white sub-pixel 131, and when each white sub-pixel 131 in the first display area 11 receives the first driving signal transmitted by the first driving circuit 30, the corresponding white sub-pixel 131 is driven in a state allowing the external light to enter.

In the display stage, the third signal output unit 33 included in the first driving circuit 30 transmits the second driving signal to the white sub-pixels 131 in the first display area 11, and the transmission of the second driving signal is implemented through the first data signal line S1 provided in the display panel 100 for electrically connecting the third signal output unit and each white sub-pixel 131, and when each white sub-pixel 131 in the first display area 11 receives the second driving signal transmitted by the first driving circuit 30, the corresponding white sub-pixel 131 is driven to be in a state of preventing the entry of external light.

More specifically, the first driving circuit 30 provided in the present application further includes a reset signal line 351, a plurality of transfer gates 352, and a plurality of sub-switches 353; in the photographing stage, the first display area 11 transmits a low level signal through the reset signal line 351, the driving transmission gates 352 are all opened, and the sub-switches 353 are all closed, so that the white sub-pixels 131 can receive the shift register 311 and the first driving signal transmitted from the shift register 311 through the inverter 321, and the corresponding white sub-pixels 131 are driven to be in a state allowing external light to enter.

In the display stage of the first display area 11, the reset signal line 351 transmits a high level signal, the driving transmission gates 352 are all closed, and the sub-switches 353 are all opened, at this time, the white sub-pixels 131 can receive the second driving signal transmitted by the first voltage signal line 331, and the corresponding white sub-pixels 131 are driven to be in a state of preventing external light from entering.

In other words, the white sub-pixel 131 disposed in the first display area 11 of the present application needs to output three voltages, including a positive voltage, a negative voltage in a state of allowing external light to enter, and a VCOM voltage in a state of preventing external light from entering (the second driving signal transmitted from the first voltage signal line 331 may be specifically a common voltage); wherein, the positive voltage is controlled by the shift register 311, and the negative voltage is controlled by the inverter. When the first display area 11 is in a state (display stage) of preventing external light from entering, the shift register 311 and the inverter 321 do not operate, or the voltage signal thereof cannot be transmitted into the display area 10 due to the closing of the transmission gate 352; at this time, the reset signal transmitted from the reset signal line 351 drives each sub-switch 353 to be turned on, and the first voltage signal line 331 transmits a second driving signal (VCOM voltage) to each sub-pixel. Accordingly, the first display area 11 is in a state (photographing stage) in which external light is allowed to enter, the reset signal transmitted from the reset signal line 351 drives each sub-switch 353 to be closed, the transmission gate 352 to be opened, and the shift register 311, and the inverter 321 transmit the first driving signal to each sub-pixel.

It should be noted that, in order to prevent shake during photographing in the photographing stage, the present application provides an alternative way to start photographing after waiting for the corresponding liquid crystal deflection after the data signal in the display area 10 is refreshed; however, the present application is not limited to this, but is merely a preferred mode of switching from the display stage to the shooting stage.

Fig. 14 is a specific block diagram of a shift register IN a display panel according to an embodiment of the present application, fig. 15 is a driving timing diagram corresponding to fig. 14 according to an embodiment of the present application, please refer to fig. 14 and 15, IN addition, a specific internal structure of a shift register 311 is shown here, wherein an input signal IN is input by IN, CLK, XCLK alternately, and the input signal IN is transferred from one shift register 311 to the next shift register 311; IN each period, for example, the first period frame1 and the third period frame3 are the shift register 311 IN the transmission stage of the driving signal, where IN is a high level signal, and the input signal is input by IN, and CLK and XCLK alternately send signals; the second period frame2 is when the shift register 311 is IN the driving signal non-transmission stage, and IN is a low level signal, and even if the CLK and XCLK alternate signals are sent, the driving signal cannot be transmitted to the first display area.

It should be noted that fig. 14 is only an example to provide a specific internal structure of the shift register 311, but the application is not limited thereto, and the internal structure of the shift register may be other circuit structures, as long as the transmission of the driving signals in the first display area 11 of the display panel 100 can be realized.

Fig. 16 is a schematic diagram of a display device according to an embodiment of the present application, referring to fig. 16, based on the same inventive concept, the present application further provides a display device, which includes a display panel 100 and a light sensing device 101;

the orthographic projection of the light sensing device 101 on the light emitting surface of the display panel 100 is located in the first display area. The display panel 100 is any one of the display panels 100 provided herein; the light sensing device 101 may be, for example, a camera, and the present application is not limited to this.

It should be noted that, in the embodiments of the display device provided in the embodiments of the present application, reference may be made to the embodiments of the display panel 100 described above, and repeated description is omitted. The display device provided by the application can be as follows: any products and components with display functions such as mobile phones, tablet computers, televisions, displays, notebook computers, vehicle-mounted display screens, navigator and the like.

As can be seen from the above embodiments, the display panel, the driving method thereof and the display device provided by the invention at least realize the following beneficial effects:

While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A display panel comprising a display region, a non-display region at least partially surrounding the display region, the display region comprising a first display region and a second display region at least partially surrounding the first display region, the first display region having a light transmittance greater than a light transmittance of the second display region;

The first signal output unit and the second signal output unit transmit a first driving signal to the white sub-pixel through at least part of the first data signal line, and the first driving signal is used for driving the white sub-pixel to be in a state of allowing external light to enter; the third signal output unit transmits a second driving signal to the white sub-pixels through at least part of the first data signal lines, and is used for driving the white sub-pixels to be in a state of preventing external light from entering, meanwhile, the first driving circuit can realize the area-by-area scanning control on the white sub-pixels of different polarity signals in the first display area respectively, and the problem that parasitic capacitance generated after the white sub-pixel capacitance is overlapped is large when all the white sub-pixels receiving the same polarity signals in the first display area are driven by the same signal line is avoided.

2. The display panel according to claim 1, wherein the first signal output unit comprises at least one shift register, and a signal output terminal of the shift register is electrically connected to at least a part of the white sub-pixels in the first display area through at least one of the first data signal lines.

3. The display panel according to claim 2, wherein the second signal output unit includes at least one inverter provided corresponding to the shift register, a first end of the inverter is electrically connected to a signal output end of the shift register, and a second end of the inverter is electrically connected to at least a portion of the white sub-pixels in the first display area through at least one of the first data signal lines.

4. The display panel according to claim 3, wherein the third signal output unit includes a first voltage signal line electrically connected to each of the white sub-pixels in the first display region through the first data signal line.

5. The display panel of claim 4, wherein the first driving circuit further comprises a reset signal line and a plurality of transfer gates;

the transmission gate is arranged at the signal output end of the shift register and the second end of the inverter; all the transmission gates are connected in series, and the reset signal line is electrically connected with at least one transmission gate and is used for controlling the opening and closing of each transmission gate.

6. The display panel according to claim 5, wherein the first driving circuit further comprises a plurality of sub-switches, the reset signal line is electrically connected to a control terminal of each of the sub-switches, and is used for controlling the sub-switches to be turned on and off;

The first end of each sub-switch is electrically connected with the first voltage signal line, and the second end of each sub-switch is electrically connected with the first data signal line.

7. The display panel of claim 6, wherein in the first display area, the white subpixel comprises a first white subpixel and a second white subpixel that receive drive signals of opposite polarity during a same frame time; the shift register is electrically connected with all the first white sub-pixels in at least one row of the pixel units through the transmission gate, and is electrically connected with all the second white sub-pixels in at least one row of the pixel units through the inverter and the transmission gate.

8. The display panel of claim 7, wherein the white subpixels in a same column are each the first white subpixel or are each the second white subpixel, and the first white subpixel and the second white subpixel are alternately arranged in a row direction.

9. The display panel of claim 8, wherein the first display region comprises a plurality of pixel groups arranged in a column direction, each of the pixel groups comprising a first pixel row and a second pixel row arranged in the column direction; in each pixel group, the white sub-pixels in the first pixel row and the white sub-pixels in the second pixel row are staggered by a first distance in the row direction, and the first distance is greater than or equal to the width of any one color sub-pixel along the row direction and is smaller than the width of any one white sub-pixel along the row direction.

10. The display panel of claim 7, wherein the first white sub-pixels and the second white sub-pixels are alternately arranged in a row direction, and the first white sub-pixels and the second white sub-pixels are alternately arranged in a column direction.

11. The display panel of claim 10, wherein the first display region comprises a plurality of pixel groups arranged in a row direction, each of the pixel groups comprising a first pixel column and a second pixel column arranged in the row direction; in each pixel group, the first pixel column and the second pixel column are staggered by a first distance in the column direction, and the first distance is greater than or equal to the height of any one color sub-pixel along the column direction and less than the height of any one white sub-pixel along the column direction.

12. The display panel according to claim 11, wherein each of the white sub-pixels corresponds to one pixel electrode, and the n+1th white sub-pixel in the first pixel column is electrically connected to the pixel electrode of the n-th white sub-pixel in the second pixel column disposed adjacent thereto, wherein n is equal to or greater than 1 and n is an integer.

13. The display panel according to claim 12, further comprising a bridge member through which two pixel electrodes electrically connected to each other are electrically connected.

14. The display panel according to claim 1, wherein the display area includes a plurality of second data signal lines arranged in a row direction and extending in a column direction, each of the second data signal lines electrically connecting all of the color sub-pixels of the same color in the same column;

at least one of the second data signal lines is located between two adjacent white sub-pixels arranged in the row direction.

15. The display panel of claim 2, wherein the non-display region comprises a first non-display region, the first driving circuit being located in the first non-display region;

the first non-display area is positioned in the extending direction of the first data signal line and is close to one side of the first display area.

16. The display panel of claim 15, wherein the first non-display area includes a signal trace area, a blank area, and a ground line sequentially disposed in a direction away from the display area, the shift register being located in the blank area.

17. A driving method of a display panel, characterized by being used for the display panel according to any one of claims 1 to 16; the method comprises a shooting stage and a display stage;

18. A display device comprising the display panel of any one of claims 1-16 and a light-sensing device;