CN112951099B

CN112951099B - Display panel, driving method thereof and display device

Info

Publication number: CN112951099B
Application number: CN202110166657.5A
Authority: CN
Inventors: 欧阳珺婷; 林柏全; 杨阳; 孔祥梓; 吕博嘉
Original assignee: Xiamen Tianma Microelectronics Co Ltd
Current assignee: Xiamen Tianma Microelectronics Co Ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2022-08-30
Anticipated expiration: 2041-02-04
Also published as: CN112951099A

Abstract

The embodiment of the invention discloses a display panel, a driving method thereof and a display device, wherein the display panel comprises a circular display area; along the radius direction of the circular display area, the circular display area comprises a plurality of concentric rings which are sequentially arranged; each concentric ring comprises a plurality of pixel units which are sequentially arranged around the circle center of the circular display area; the circular display area also comprises n fan-shaped sub-display areas which are sequentially arranged along the clockwise direction; the arrangement modes of all pixel units in all the fan-shaped sub-display areas correspond to each other; wherein n is not less than 5 and n is an integer. The embodiment of the invention can improve the edge sawtooth phenomenon of the display panel with the circular display area, and can meet the display requirement of forward display images with more rotation angles, so that the display panel can be applied to the field of forward display images with various rotation angles, the application field of the display panel with the circular display area is further widened, and the practicability of the display panel is improved.

Description

Display panel, driving method thereof and display device

Technical Field

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

Background

Along with the development of display technology, the shape structure of display device's display screen no longer limits to original rectangle display screen, presents diversified shape structure, for example, to wearable equipment such as intelligent wrist-watch, smart glasses, intelligent necklace, for the consideration in aspects such as pleasing to the eye and human engineering usually, the display area of its display screen is circular usually.

The existing display screen process is designed aiming at common rectangular display areas mostly, so that basic display units (pixels) on the display screen are rectangular or square, when the circular display screen is manufactured by adopting the existing display screen process, the pixel edge at the edge position of the display screen cannot be matched with the edge of the display screen, and although the circular display screen is circular in appearance, the circular display screen is inevitably subjected to a sawtooth phenomenon at the edge of the circular display screen due to the fact that the rectangular pixels are adopted for displaying. Meanwhile, when the circular display screen adopts the pixel design mode of the rectangular display screen, the picture display with various rotation angles can not be carried out; therefore, the special symmetry performance of the circular display screen cannot be well embodied, and the application field of the circular display screen is further limited.

Disclosure of Invention

In view of the above problems, embodiments of the present invention provide a display panel, a driving method thereof, and a display device, so as to improve the phenomenon of sawtooth at the edge of a circular display area of the display panel, and enable a circular display screen to meet the image display requirements of various rotation angles, thereby further widening the application field of the circular display screen.

In a first aspect, an embodiment of the present invention provides a display panel, including: a circular display area;

along the radius direction of the circular display area, the circular display area comprises a plurality of concentric circular rings which are sequentially arranged; each concentric ring comprises a plurality of pixel units which are sequentially arranged around the circle center of the circular display area;

the circular display area also comprises n fan-shaped sub-display areas which are sequentially arranged along the clockwise direction; the arrangement modes of the pixel units in the fan-shaped sub-display areas correspond to each other; wherein n is not less than 5 and n is an integer.

In a second aspect, an embodiment of the present invention further provides a driving method of a display panel, for driving the display panel, including:

when the display panel pre-displays an image to be displayed, acquiring a relative position relation between a display surface of the display panel and a reference direction; the reference direction comprises one of a forward direction of the user facial features, a reverse direction of gravity and a combined direction of the forward direction of the user facial features and the reverse direction of gravity;

according to the relative position relation, controlling each pixel unit to display in a one-to-one correspondence manner, so that an included angle theta between the forward direction of the image to be displayed on the display surface and the reference direction is within a preset range; wherein theta is more than or equal to 0 and less than 2 pi/n.

In a third aspect, an embodiment of the present invention further provides a display device, including: a driving chip and the display panel;

the driving chip is used for executing the driving method of the display panel.

According to the display panel, the driving method thereof and the display device provided by the embodiment of the invention, the pixel units in the display area are sequentially arranged along the circle center of the circular display area in a concentric ring mode, so that the pixel units arranged in the circular display area can be matched with the shape of the circular display area, and the phenomenon of sawtooth at the edge of the circular display area in the display panel is improved; meanwhile, the circular display area is divided into n (n is an integer greater than or equal to 5) fan-shaped sub-display areas which are sequentially arranged along the clockwise direction, and the arrangement modes of all the pixel units in all the fan-shaped sub-display areas correspond to each other, so that the displayed contents of any two fan-shaped sub-display areas can be mutually converted, when an image to be displayed is displayed, all the pixel units in all the fan-shaped sub-display areas can be controlled to display according to a defined and/or detected reference direction, an included angle theta (0 is greater than or equal to theta and less than 2 pi/n) between the forward direction of the image to be displayed and the reference direction displayed by the display panel is in a preset range, the image to be displayed, which is viewed by a user, is in the forward direction relative to the reference direction, and compared with the prior art which only can meet the display requirements of 90-degree and 180-degree rotation display, the display panel of the embodiment of the invention can meet the display requirements of forward display images with more rotation angles, therefore, the display panel can be applied to the field of forward display images with various rotation angles, the application field of the display panel with the circular display area is widened, and the practicability of the display panel is improved.

Drawings

FIG. 1 is a schematic diagram of a display panel according to the prior art;

fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of the peripheral outline structures of two pixel units in FIG. 4;

FIG. 7 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

FIG. 8 is an enlarged structural diagram of a sector sub-display area according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of a display panel according to another embodiment of the present invention;

fig. 12 is a flowchart of a driving method of a display panel according to an embodiment of the present invention;

fig. 13 is a flowchart of a display control method for a pixel unit according to an embodiment of the present invention;

FIG. 14 is a flowchart of a signal writing method according to an embodiment of the present invention;

FIG. 15 is a flowchart of another signal writing method according to an embodiment of the present invention;

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

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Fig. 1 is a schematic structural diagram of a display panel in the prior art. As shown in fig. 1, the display panel 001 is a circular display panel, and the circular display panel 001 includes a circular display area 0101, and a plurality of pixels 010 arranged in an array are disposed in the circular display area 0101; the plurality of pixels 010 arranged in the array are sequentially arranged along a row direction X and sequentially arranged along a column direction Y, wherein the row direction X is perpendicular to the column direction Y; the pixel arrangement mode adopts the arrangement mode of a rectangular display screen.

When the circular display panel 001 displays a picture, since the minimum distance between each point on the edge of the circular display area 0101 of the circular display panel 001 and each pixel 010 is different, when each pixel 010 performs display light emission, the light emission luminance at each point on the edge of the circular display area 0101 is different, and thus an edge jaggy phenomenon occurs.

Meanwhile, if p rows and p columns of pixels are arranged in the circular display area 0101 of the circular display panel 001, and when the circular display panel 001 normally displays a picture, corresponding data signals are sequentially written into the pixels in each row from the first row to the p-th row, and the pixels are controlled to display, when an image displayed on the circular display panel 001 needs to be displayed by rotating clockwise by integral multiples of 90 degrees relative to the normal display picture, for example, rotating clockwise by 90 degrees, the data signals of the pixels in the first row can be changed into the data signals of the pixels in the first row, the data signals of the pixels in the second row can be changed into the data signals of the pixels in the second row, and so that the data signals of the pixels in the p-th row can be changed into the data signals of the pixels in the p-th row, and the circular display panel 001 can still display a picture in a relatively forward direction; however, when the image displayed on the circular display panel 001 needs to be displayed by rotating clockwise with respect to the normal display screen by an angle smaller than 90 degrees or not an integral multiple of 90 degrees, for example, rotating clockwise by 45 degrees, the rows and columns of the pixels cannot be in one-to-one correspondence with the rows and columns of the pixels during normal display, so that the data signal conversion cannot be performed, and at this time, the circular display panel 001 cannot display a screen in a forward direction; thus, due to the arrangement of the pixels in the circular display panel 001, the circular display panel 001 cannot display images at various rotation angles, so that the symmetry performance specific to the circular display panel 001 cannot be well embodied, and the application field of the circular display screen is limited.

To solve the above technical problem, an embodiment of the present invention provides a display panel, which includes a circular display area; along the radius direction of the circular display area, the circular display area comprises a plurality of concentric circular rings which are sequentially arranged; each concentric ring comprises a plurality of pixel units which are sequentially arranged around the circle center of the circular display area; the circular display area also comprises n fan-shaped sub-display areas which are sequentially arranged along the clockwise direction; the arrangement modes of all pixel units in all the fan-shaped sub-display areas correspond to each other; wherein n is not less than 5 and n is an integer.

By adopting the technical scheme, the pixel units in the display area are sequentially arranged along the circle center of the circular display area in a concentric ring mode, so that the pixel units arranged in the circular display area can be matched with the shape of the circular display area, and the phenomenon of sawtooth at the edge of the circular display area in the display panel is improved; meanwhile, the circular display area is divided into n (n is an integer greater than or equal to 5) fan-shaped sub-display areas which are sequentially arranged along the clockwise direction, and the arrangement modes of all the pixel units in all the fan-shaped sub-display areas correspond to each other, so that the displayed contents of any two fan-shaped sub-display areas can be mutually converted, when an image to be displayed is displayed, all the pixel units in all the fan-shaped sub-display areas can be controlled to display according to a defined and/or detected reference direction, an included angle theta (0 is greater than or equal to theta and less than 2 pi/n) between the forward direction of the image to be displayed and the reference direction displayed by the display panel is in a preset range, the image to be displayed, which is viewed by a user, is in the forward direction relative to the reference direction, and compared with the prior art which only can meet the display requirements of 90-degree and 180-degree rotation display, the display panel of the embodiment of the invention can meet the display requirements of forward display images with more rotation angles, therefore, the display panel can be applied to the field of forward display images with various rotation angles, the application field of the display panel with the circular display area is widened, and the practicability of the display panel is improved.

The foregoing is the core idea of the present invention, and the technical solutions in the embodiments of the present invention will be described in detail with reference to the drawings in the embodiments of the present invention. Based on the embodiments of the present invention, those skilled in the art can obtain all other embodiments without creative efforts, which belong to the protection scope of the embodiments of the present invention.

In the embodiment of the present invention, the display panel includes a circular display area, that is, the display area of the display panel is circular, and the display panel itself may be circular, oval, triangular, rectangular, or other polygonal shapes, which is not limited in the embodiment of the present invention. The embodiment of the invention exemplarily illustrates the technical solution of the embodiment of the invention by taking the shape of the display panel as a circle as an example.

Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention. As shown in fig. 2, the display panel 100 includes a circular display area 101, and along a radius direction of the circular display area 101, the circular display area includes a plurality of concentric rings sequentially arranged; each concentric ring comprises a plurality of pixel units 10 which are sequentially arranged around the center O of the circular display area 101, so that the minimum distance between each point on the edge of the circular display area 101 and each pixel unit 10 is kept equal or within a small difference range, and the brightness of light emitted by each pixel unit 10 when the light is displayed to each point on the edge of the circular display area 101 can be kept consistent, thereby eliminating or weakening the phenomenon of edge saw teeth of the circular display area 101, and further improving the display effect of the display panel 100. Meanwhile, the pixel units 10 of the concentric rings are sequentially arranged along the circle center O of the circular display area 101, at this time, the number of the pixel units in the concentric rings can be gradually increased along the direction that the circle center O of the circular display area 101 points to the edge of the circular display area 101, so that the pixel units 10 of the concentric rings are uniformly distributed, and the phenomenon of uneven display of the display panel due to dense arrangement of the pixel units in the concentric rings close to the circle center of the circular display area and sparse arrangement of the pixel units in the concentric rings far away from the circle center of the circular display area is prevented.

Here, for example, the plurality of pixel units 10 sequentially arranged around the center O of the circular display area 101 do not necessarily refer to the smallest display unit in the display panel 100; when the minimum display unit of the display panel 100 is a sub-pixel, each pixel unit 10 may include a plurality of sub-pixels, for example, each pixel unit 10 may include three

sub-pixels

11, 12, and 13 of different display colors, and the display colors of the three

sub-pixels

11, 12, and 13 of different colors may be one of red, blue, and green, respectively; that is, when the display color of the sub-pixel 11 is red, the display colors of the

sub-pixels

12 and 13 may be green and blue, respectively; alternatively, when the display color of the sub-pixel 11 is green, the display colors of the

pixels

12 and 13 may be red and blue, respectively; alternatively, when the display color of the sub-pixel 11 is blue, the display colors of the

pixels

12 and 13 may be red and green, respectively.

With continued reference to fig. 2, the circular display area 101 further includes n (n is an integer greater than or equal to 5, for example, n is equal to 8) fan-shaped sub-display areas (111, 112, 113, 114, 115, 116, 117, 118) sequentially arranged in the clockwise direction W, i.e., the circular display area 10 is equally divided into 8 fan-shaped sub-display areas (111, 112, 113, 114, 115, 116, 117, 118); the pixel units 10 in the fan-shaped sub-display areas (111, 112, 113, 114, 115, 116, 117, 118) are arranged correspondingly. The arrangement of each pixel unit 10 in each sub-display area (111, 112, 113, 114, 115, 116, 117, 118) may be: each sub-display region 111 has the same or similar pixel arrangement mode; alternatively, the number of the pixel units in each sub-display region 111 is the same or similar, and the pixel arrangement of each sub-display region 111 may be the same or different.

Illustratively, it is exemplified that the circular display area 101 includes 8 fan-shaped sub-display areas 111 sequentially arranged in the clockwise direction W, and the number of pixel units in each fan-shaped sub-display area (111, 112, 113, 114, 115, 116, 117, 118) is kept uniform. At this time, the central angle of each of the fan-shaped sub-display sections (111, 112, 113, 114, 115, 116, 117, 118) is 45 °. Because the number of the pixel units in each fan-shaped sub-display area (111, 112, 113, 114, 115, 116, 117, 118) is kept consistent, the data signals of each pixel unit in one fan-shaped sub-display area (such as the fan-shaped sub-display area 1111) can be converted into the data signals of each pixel unit in the other fan-shaped sub-display areas (112, 113, 114, 115, 116, 117, 118) in a one-to-one correspondence manner. At this time, the display of each pixel unit 10 in each fan-shaped sub-display region (111, 112, 113, 114, 115, 116, 117, 118) can be controlled according to the relative positional relationship between the set direction and the reference direction of the display panel 100. For example, when the reference direction Y (Y ') is, for example, a forward direction of a facial feature of a user, and the reference direction is changed from a direction parallel to the setting direction Y of the display panel 100 to a direction Y ' by rotating α (for example, α is 45 °) in a clockwise direction W, in order to enable the user to view an image whose forward direction coincides with the forward direction of the facial feature thereof, when the display panel displays the image, the data signal supplied to each pixel cell 10 in the fan-shaped sub-display area 111 when the reference direction is the Y direction may be supplied to the data signal of each pixel cell 10 in the fan-shaped sub-display area 112 when the reference direction is the Y ' direction, and the data signal supplied to each pixel cell 10 in the fan-shaped sub-display area 112 when the reference direction is the Y ' direction may be supplied to the data signal of each pixel cell 10 in the fan-shaped sub-display area 113 when the reference direction is the Y ' direction; by analogy, when the reference direction is the Y 'direction, the data signals of the pixel units in the fan-shaped sub-display regions (111, 112, 113, 114, 115, 116, 117, 118) can be obtained, and the data signals are correspondingly provided to the pixel units 10 of the fan-shaped sub-display regions (111, 112, 113, 114, 115, 116, 117, 118) one by one, so that when the pixel units 10 of the fan-shaped sub-display regions (111, 112, 113, 114, 115, 116, 117, 118) display according to the corresponding data signals, the forward direction of the image displayed in the circular display region 101 of the display panel 100 can be rotated by 45 ° along the reference direction Y' in the clockwise direction, and the included angle between the forward direction of the image displayed in the circular display region 101 and the reference direction is 0, so that the image viewed by the user is kept in the forward direction, and the viewing requirements of the user are met.

Accordingly, it can be deduced from the above description that, when the rotation angle α of the reference direction of the display panel 100 in the clockwise direction W or the counterclockwise direction is an integral multiple of 45 °, the forward direction of the image to be displayed in the circular display area 101 of the display panel 100 can be rotated by α along the clockwise direction W or the counterclockwise direction with the reference direction by transforming the data signals corresponding to the pixel units in the fan-shaped sub-display areas (111, 112, 113, 114, 115, 116, 117, and 118), so that the included angle between the forward direction of the image displayed in the circular display area 101 and the reference direction is 0, so that the image viewed by the user is kept in the forward direction, thereby satisfying the viewing requirement of the user. Alternatively, when the rotation angle α of the reference direction of the display panel 100 along the clockwise direction W or the counterclockwise direction is not an integral multiple of 45 °, the data signals corresponding to the pixel units in the fan-shaped sub-display areas (111, 112, 113, 114, 115, 116, 117, 118) may be transformed so as to keep the included angle θ between the forward direction of the image displayed on the circular display area 101 and the reference direction within the range of 0 ≦ θ <2 π/n, and at this time, the included angle θ between the forward direction of the image displayed on the circular display area 101 and the reference direction is kept within a smaller angle range than the case where the included angle θ between the forward direction of the image displayed on the circular display area and the reference direction has a larger range, which can better satisfy the viewing requirements of the user.

Thus, compared with a display panel which can only meet the rotation display of 90 degrees and 180 degrees, the embodiment of the invention can meet the display requirement of forward display images with more rotation angles, so that the display panel can be applied to the field of forward display images with various rotation angles, for example, when the display panel is applied to an instrument of a space capsule, under the condition of zero weight loss, an instrument image which is consistent with the forward direction of facial features of an astronaut can be observed no matter how the astronaut rotates, the application field of a circular display screen is widened, and the practicability of the display panel is improved.

Furthermore, the reference direction may also be a direction opposite to the direction of gravity or a combined direction of a forward direction of the user's facial features and the opposite direction of gravity. Fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention. In conjunction with fig. 2 and 3, the reference direction is taken as the opposite direction of the gravity direction as an example. At this time, if the Y direction is opposite to the gravity direction, when the setting direction of the display panel is changed from the Y direction to the clockwise direction W to Y ', the data signal supplied to each pixel unit 10 in the fan-shaped sub-display area 111 when the setting direction of the display panel is the Y direction can be supplied to the data signal of each pixel unit 10 in the fan-shaped sub-display area 118 when the setting direction of the display panel is the Y' direction, the data signal supplied to each pixel unit 10 in the fan-shaped sub-display area 112 when the setting direction of the display panel is the Y direction can be supplied to each pixel unit 10 in the fan-shaped sub-display area 111 when the setting direction of the display panel is the Y 'direction, and the data signal of each pixel unit in each fan-shaped sub-display area (111, 112, 113, 114, 115, 116, 117, 118) when the setting direction of the display panel is the Y' direction can be obtained and supplied to each fan-shaped sub-display area (111, 113, 114, 115, 116, 117, 118) in one-to one correspondence with each pixel unit, 112. 113, 114, 115, 116, 117, 118), so that when each pixel cell 10 of each fan-shaped sub-display area (111, 112, 113, 114, 115, 116, 117, 118) displays according to its corresponding data signal, the forward direction of the image displayed in the circular display area 101 of the display panel 100 can be maintained in the opposite direction of the gravity direction, or the included angle between the forward direction of the image displayed in the circular display area 101 and the reference direction Y can be maintained in the range of 0 ≦ θ <2 π/n, to meet the viewing requirements of the user.

It should be noted that fig. 2 and fig. 3 are only exemplary drawings of the embodiment of the present invention, and fig. 2 and fig. 3 only exemplarily show that the circular display area 101 includes 8 fan-shaped sub-display areas; in the embodiment of the present invention, the number of the sector sub-display areas of the circular display area may also be 5, 6, 7 or more, which is not specifically limited in the embodiment of the present invention. For convenience of description, the technical solutions of the embodiments of the present invention are exemplarily described below by taking the circular display area including 8 fan-shaped sub-display areas as an example, without special description.

Optionally, on the basis of the above embodiment, with continued reference to fig. 2, the display panel 100 further includes a sensor arrangement region 102; the sensor placement area 102 is used for placing an infrared sensor and/or a gyroscope. When the reference direction Y is the forward direction of the facial features of the user, the sensor setting area 102 should be provided with an infrared sensor, and the infrared sensor captures the facial feature information of the user to determine the forward direction of the facial features of the user; or, when the reference direction Y is the opposite direction of the gravity direction, the sensor setting area 102 should be provided with a gyroscope, and the direction of the gravity is obtained through the gyroscope, so as to determine the opposite direction of the gravity direction; alternatively, when the reference direction Y is a combined direction of the forward direction of the facial features of the user and the opposite direction of the gravity direction, the sensor installation area 102 is provided with an infrared sensor and a gyroscope at the same time, so as to respectively determine the forward direction of the facial features of the user and the opposite direction of the gravity direction, and determine the combined direction of the forward direction of the facial features of the user and the opposite direction of the gravity direction in a specific combination manner. Thus, the relative position relationship between the display panel 100 and the reference direction can be further determined according to the determined reference direction, so that when the display panel 100 displays an image to be displayed, an included angle between the forward direction of the image to be displayed and the reference direction can be within a smaller angle range, thereby satisfying the viewing requirements of users.

Optionally, fig. 4 is a schematic structural diagram of another display panel provided in an embodiment of the present invention. As shown in fig. 4, the shape of the outer contour of the pixel unit 10 includes a fan shape or a fan ring, that is, when the pixel unit 10 includes a plurality of sub-pixels (11, 12, 13) of different display colors, the constituent shape of each sub-pixel (11, 12, 13) of the same pixel unit 10 is a fan shape or a fan ring.

Illustratively, when the radius of the small circle of the innermost concentric circle in the circular display area 101 is 0, the shape of the outer peripheral contour of the pixel unit 10 in the innermost concentric circle is a sector, and the shape of the outer peripheral contour of the pixel unit 10 in the other concentric circles is a sector; the shape of each sub-pixel (11, 12, 13) in each pixel unit 10 can be set according to practical situations, for example, the shape of each sub-pixel (11, 12, 13) in each pixel unit 10 can be set to be a fan or a fan ring.

In this way, by setting the peripheral outline of the pixel units sequentially arranged around the center of the circular display area in each concentric ring to be in the shape of a sector or a fan ring, the pixel units arranged in each concentric ring can form a close-packed structure, thereby ensuring the display uniformity of the displayed picture of the display panel, and the pixel units can be arranged in a manner of equally dividing the concentric rings, thereby being convenient for the layout design of the pixel units in the circular display area.

It should be noted that fig. 4 is only an exemplary diagram of an embodiment of the present invention, and fig. 4 only illustrates that each sub-pixel has a fan shape or a fan ring shape; in the embodiment of the present invention, on the premise that the shape of the peripheral contour of each pixel unit is a fan shape or a fan ring, the embodiment of the present invention does not specifically limit the shape of the sub-pixels of each pixel unit. Illustratively, as shown in fig. 5, the shape of the sub-pixels (11, 12, 13) of each pixel unit 10 may also be triangular or triangle-like. For convenience of description, the following description will exemplarily describe the technical solution of the embodiment of the present invention by taking the shape of the sub-pixel as a sector or a sector ring as an example.

Optionally, fig. 6 is a schematic diagram of the peripheral outline structure of two pixel units in fig. 4 respectively. As shown in fig. 4 and fig. 6, any two pixel units (1111 and 1112) are selected, and the areas of the two pixel units (1111 and 1112) are S1 and S2, that is, the area of the pixel unit 1111 is S1, and the area of the pixel unit 1112 is S2; wherein when S1 is more than or equal to S2, the ratio of S1-S2/S1 is less than or equal to 0 and less than or equal to 10 percent. In this way, the area difference between any two pixel units 10 is not more than 10%, so as to prevent the occurrence of the phenomenon of non-uniform display due to the large area difference between the pixel units 10, thereby being beneficial to improving the display effect of the display panel 100.

Alternatively, with continuing reference to fig. 4 and 6, the height and median bit line length of the pixel cell 111 with area S1 are a1 and b1, respectively, and the height and median bit line length of the pixel cell 1112 with area S2 are a2 and b2, respectively; wherein 0 is less than or equal to (a1/b1) - (a2/b2) is less than or equal to 10 percent. In this way, by further limiting the difference between the heights of any two pixel units 10 and the comparison of the median line to be within 10% (including 10%), the difference between the heights of the pixel units 10 and the ratio of the median line is prevented from being large, so that the structural difference between the pixel units is large, and display deviation is generated, thereby further ensuring the display uniformity of the display panel 100 and improving the display effect of the display panel 100.

Optionally, fig. 7 is a schematic structural diagram of another display panel provided in an embodiment of the present invention. As shown in fig. 7, when each pixel unit 10 includes a plurality of sub-pixels (11, 12, 13) of different colors, the display panel 100 further includes a plurality of first signal lines 21 and second signal lines 22; the plurality of first signal lines 21 are sequentially arranged along the radius direction, and at least part of sub-pixels (11, 12, 13) belonging to the same concentric ring share the first signal lines 21; the second signal line 22 extends along the radius direction, and at least part of the sub-pixels (11, 12, 13) arranged along the radius direction share the second signal line 22; illustratively, the same-color sub-pixels 11(12 or 13) belonging to the same concentric ring share one first signal line 21, and the same-color sub-pixels 11(12 or 13) arranged in the radial direction share a second signal line 22; at this time, the first signal lines 21 may be arranged in a ring shape, and the second signal lines 22 may be arranged in a radial shape. The first signal lines 21 are data signal lines, and the first signal lines 22 are scanning signal lines; alternatively, the first signal lines 21 are scanning signal lines, and the second signal lines 22 are data signal lines; the scanning signal line is used for transmitting a scanning signal to each sub-pixel; the data signal line is used for transmitting data signals to each sub-pixel in a time-sharing mode. Thus, one of the scanning signal lines and the data signal lines is annularly arranged, and the other of the scanning signal lines and the data signal lines is radially arranged, so that the display panel can be more suitable for the circular display area 101 in the display panel 100, and when the display panel 100 displays an image to be displayed, the driving mode of the display panel can be simplified, which is beneficial to reducing the power consumption of the display panel.

It should be understood that fig. 7 is only an exemplary diagram of the embodiment of the present invention, and fig. 7 only exemplarily shows that the sub-pixels (11, 12, 13) belonging to the same concentric ring share one first signal line 21, and the sub-pixels 11(12 or 13) of the same color arranged in the radial direction share a second signal line 22; on the premise that at least some of the sub-pixels belonging to the same concentric ring share the first signal line, and at least some of the sub-pixels arranged along the radial direction share the second signal line, the correspondence relationship between the first signal line and the sub-pixels, and the second signal line and the sub-pixels in the embodiment of the present invention may be in other forms, which is not specifically limited in the embodiment of the present invention.

Optionally, fig. 8 is an enlarged schematic structural diagram of a sector sub-display area according to an embodiment of the present invention. As shown in fig. 7 and 8, since the pixel units in each concentric ring are sequentially arranged around the center of the concentric ring, when the structures of the pixel units in the circular display area 101 are consistent, the larger the area of the concentric ring is, the larger the number of pixel units arranged in the concentric ring is, and thus the number of pixel units 10 in each concentric ring may be increased in a direction from the centers of the plurality of concentric rings to the edge of the circular display area 101; at this time, in a direction from one side of the fan-shaped sub-display region 111 to the symmetry axis L of the fan-shaped sub-display region 111, the number of sub-pixels (11, 12, 13) electrically connected to the respective second signal lines 22 corresponding to the sub-pixels (11, 12, 13) of the different pixel units 10 is in a downward trend, that is, the number of sub-pixels (11, 12, 13) electrically connected to the second signal lines 22 distant from the symmetry axis L of the fan-shaped sub-display region 111 in the fan-shaped sub-display region 111 is greater than or equal to the number of sub-pixels (11, 12, 13) electrically connected to the second signal lines 22 close to the symmetry axis L of the fan-shaped sub-display region 111; when each second signal line 22 extends from the edge of the circular display area 101 to the inside of the circular display area 101 and is electrically connected to each sub-pixel (11, 12, 13) of the circular display area 101 correspondingly, each second signal line 22 can be prevented from overlapping each other, and each sub-pixel 11(12 or 13) can be ensured to be electrically connected to one first signal line 21 and one second signal line 22, so as to prevent the second signal lines 22 from crossing each other or the distance between the second signal lines 22 from being short, so that the accuracy of the signal transmitted on each second signal line 22 is affected, thereby facilitating the design of each second signal line and ensuring that the display panel 100 has good display effect; meanwhile, as the number of the sub-pixels electrically connected to the second signal line 22 is larger, when the symmetry axis of the fan-shaped sub-display region 111 is taken as a boundary, the number of the sub-pixels (11, 12, 13) electrically connected to the two corresponding second signal lines 22 respectively located at two opposite sides of the symmetry axis is equivalent, so that the number of the sub-pixels electrically connected to the two corresponding second signal lines 22 at two opposite sides of the symmetry axis is the same or similar, thereby being beneficial to improving the display uniformity of the display panel 100. Here, the fan-shaped sub-display area 111 may refer to any one of the fan-shaped sub-display areas in the circular display area 101.

Optionally, on the basis of the above embodiment, the display panel further includes a scan driving circuit; the scanning driving circuit comprises a plurality of scanning driving units which are arranged in a cascade mode; the scanning signal output end of each scanning driving unit is electrically connected with each scanning signal line in a one-to-one correspondence manner; each scanning driving unit sequentially outputs the enable level of the scanning signal to each scanning signal line.

For example, fig. 9 is a schematic structural diagram of another display panel provided in the embodiment of the present invention. As shown in fig. 9, the first signal lines 21 are scanning signal lines, and the second signal lines 22 are data signal lines; the scan driving circuit 30 may be embedded in the circular display area 101; each scanning driving unit 31 of the scanning driving circuit 30 is arranged in cascade; by controlling each scan driving unit 31 to sequentially output the enable level of the scan signal to each scan signal line 21 and correspondingly transmit the scan signal to each sub-pixel (11, 12, 13) through each scan signal line 21, the data signal transmitted by each data signal line 22 can be written into each sub-pixel (11, 12, 13) in a one-to-one correspondence manner, so that the circular display area 101 of the display panel 100 can present a specific image.

For example, fig. 10 is a schematic structural diagram of another display panel provided in the embodiment of the present invention. As shown in fig. 10, the first signal lines 21 are data signal lines, and the second signal lines 22 are scanning signal lines; the scan driving circuit 30 may be disposed around the circular display region 101. In this arrangement, the scan driving units 31 are also controlled to sequentially output the enable levels of the scan signals to the scan signal lines 22 and correspondingly transmit the scan signals to the sub-pixels (11, 12, 13) through the scan signal lines 221, so that the data signals transmitted by the data signal lines 21 can be written into the sub-pixels (11, 12, 13) in a one-to-one correspondence manner, and the circular display area 101 of the display panel 100 can display a specific image.

It should be noted that fig. 10 is only an exemplary diagram of the embodiment of the present invention, and fig. 10 exemplarily illustrates that only one scan driving circuit is provided in the display panel; in the embodiment of the present invention, a plurality of scan driving circuits may be further provided according to actual requirements.

Optionally, fig. 11 is a schematic structural diagram of another display panel provided in an embodiment of the present invention. As shown in fig. 11, when the first signal lines 21 are data signal lines and the second signal lines 22 are scanning signal lines, the display panel 100 may include n scanning driving circuits disposed in one-to-one correspondence with the n fan-shaped sub-display regions; each scan driving circuit includes a plurality of scan driving units 31 arranged in cascade; the scanning signal output ends of the scanning driving units 31 of the same scanning driving circuit are electrically connected with the scanning signal lines 22 in the same fan-shaped sub-display area in a one-to-one correspondence manner; wherein, each scan driving unit 31 of each scan driving circuit sequentially outputs the enable level of the scan signal to each scan signal line 22 in a preset sequence.

Illustratively, the circular display area 101 of the display panel 100 includes 8 fan-shaped sub-display areas. At this time, the display panel 100 includes 8 scan driving circuits (301, 302, 303, 304, 305, 306, 307, and 308), and the scan signal output terminal of each scan driving unit 31 of the scan driving circuit 301 is electrically connected to each scan signal line 22 of the fan-shaped sub display region 111, the scan signal output terminal of each scan driving unit 31 of the scan driving circuit 302 is electrically connected to each scan signal line 22 of the fan-shaped sub display region 112, the scan signal output terminal of each scan driving unit 31 of the scan driving circuit 303 is electrically connected to each scan signal line 22 of the fan-shaped sub display region 113, the scan signal output terminal of each scan driving unit 31 of the scan driving circuit 304 is electrically connected to each scan signal line 22 of the fan-shaped sub display region 114, the scan signal output terminal of each scan driving unit 31 of the scan driving circuit 305 is electrically connected to each scan signal line 22 of the fan-shaped sub display region 115, the scanning signal output terminal of each scanning driving unit 31 of the scanning driving circuit 306 is electrically connected to each scanning signal line 22 of the fan-shaped sub display region 116, the scanning signal output terminal of each scanning driving unit 31 of the scanning driving circuit 307 is electrically connected to each scanning signal line 22 of the fan-shaped sub display region 117, and the scanning signal output terminal of each scanning driving unit 31 of the scanning driving circuit 308 is electrically connected to each scanning signal line 22 of the fan-shaped sub display region 118. Thus, each scan driving circuit can individually control the writing of data signals to the pixel units in one sector-shaped sub-display region. When the display panel 100 displays an image to be displayed, the scan driving circuits are sequentially activated by controlling the activation sequence of the scan driving circuits, and the scan driving units 31 of the scan driving circuits (301, 302, 303, 304, 305, 306, 307, and 308) are controlled to sequentially output the enable levels of the scan signals to the scan signal lines 22, so that the data signals transmitted by the data signal lines 21 are written into the sub-pixels (11, 12, and 13) in a one-to-one correspondence manner.

Based on the same inventive concept, the embodiment of the present invention further provides a driving method of a display panel, where the driving method of the display panel is used to drive the display panel provided by the embodiment of the present invention. Fig. 12 is a flowchart of a driving method of a display panel according to an embodiment of the present invention. As shown in fig. 12, the driving method of the display panel includes:

s110, when the display panel displays the image to be displayed in advance, acquiring the relative position relation between the set direction and the reference direction of the display panel.

Wherein the reference direction includes one of a forward direction of the user's facial features, a reverse direction of gravity, and a combined direction of the forward direction of the user's facial features and the reverse direction of gravity.

Specifically, referring to fig. 2, the setting direction of the display panel 100 may be a specific direction parallel to the display surface of the display panel 100, which is set according to needs, for example, a direction having an angle of 0 with the Y direction when the display panel is not rotated. At this time, the relative positional relationship between the set direction of the display panel 100 and the reference direction may be determined by an angle between the orthographic projection of the reference direction on the display surface of the display panel 100 and the set direction of the display panel 100.

Accordingly, the forward direction of the user's facial features may be, for example, the forward direction of the user's pupils, or the direction pointing from the user's chin to the user's forehead; the opposite direction of gravity is opposite to the direction of gravity; the combined direction of the forward direction of the user facial features and the opposite direction of gravity is determined by setting rules and considering the forward direction of the user facial features and the opposite direction of gravity at the same time, for example, when the display surface of the display panel is parallel to the direction of gravity, the combined direction of the forward direction of the user facial features and the direction of gravity can be determined as a reference direction by taking the opposite direction of the direction of gravity as a main direction and the forward direction of the user facial features as an auxiliary direction; when the display surface of the display panel is perpendicular to the gravity direction, the combined direction of the display surface and the gravity direction is determined as the reference direction by taking the positive direction of the facial features of the user as the main direction and taking the reverse direction of the gravity direction as the auxiliary direction.

And S120, controlling the pixel units to display correspondingly one by one according to the relative position relationship so that an included angle theta between the forward direction of the image to be displayed on the display surface and the reference direction is within a preset range.

The value range of an included angle theta between the forward direction of the image to be displayed and the reference direction is as follows: theta is more than or equal to 0 and less than or equal to 2 pi/n.

Specifically, with reference to fig. 2, the Y' direction is taken as the current reference direction, and the Y direction is taken as the setting direction of the display panel 100 as an example. At this time, the reference direction Y' has an angle α with the setting direction Y of the display panel 100. Since the circular display region 1012 of the display panel 100 includes a plurality of fan-shaped sub-display regions (111, 112, 113, 114, 115, 116, 117, 118) sequentially arranged in a clockwise direction, and the pixel units 10 of each fan-shaped sub-display region (111, 112, 113, 114, 115, 116, 117, 118) are arranged in a corresponding manner, so that the data signals of the pixel units 10 in each fan-shaped sub-display region (111, 112, 113, 114, 115, 116, 117, 118) can be mutually converted, when the display panel displays an image to be displayed, the data signals actually written to the pixel units can be determined according to the included angle between the reference direction Y 'and the set direction Y of the display panel 100, and written into the pixel units in a one-to-one correspondence manner, the pixel units are controlled to display according to the written data signals, so as to control the included angle between the image to be displayed on the display panel 100 and the reference direction Y' to be within a small angle range, thereby satisfying the viewing requirements of the user.

It can be understood that, when the display panel displays an image to be displayed, the manner of converting the data signals written into the pixel units of the fan-shaped sub-display areas according to the set direction of the display panel may refer to the above exemplary description of the display panel, and will not be described herein again.

Compared with the prior art which can only satisfy 90-degree and 180-degree rotation display, the driving method of the display panel provided by the embodiment of the invention can control each pixel unit in the display panel to display according to the relative position relation between the set direction and the reference direction of the display panel, when the included angle between the setting direction of the display panel and the reference direction is not integral multiple of 90 degrees, the included angle between the forward direction of the displayed image to be displayed and the reference direction can be in a smaller angle range, so that forward display images with more rotation angles can be realized, further, the display panel can be applied to the field of forward display of images requiring various rotation angles, for example, when the display panel is applied to a meter of a space capsule, under the condition of weightlessness, an instrument image which is consistent with the forward direction of facial features of an astronaut can be observed no matter how the astronaut rotates; or, when the display panel is applied to the back of a portable device (such as a mobile phone) to be used as a secondary display screen, a picture to be displayed with a smaller included angle with the reference direction can be observed no matter how the portable device rotates; thus, on one hand, the requirements of the user on the directionality of the viewed image can be met; on the other hand, the application field of the display panel with the circular display area can be widened, and the practicability of the display panel is improved.

Optionally, when the display panel includes a sensor setting area, and the sensor setting area is used for setting an infrared sensor and/or a gyroscope, the infrared sensor may be used to capture facial feature information of the user before obtaining a relative position relationship between the setting direction and the reference direction of the display panel; and/or acquiring the direction of gravity by adopting a gyroscope, and determining the reference direction according to the facial feature information of the user and/or the direction of gravity.

For example, with continued reference to fig. 2, when the reference direction is a forward direction of the facial features of the user, the infrared sensor disposed in the sensor setting area of the display panel may be used to capture facial feature information of the user, which may be information of the entire face of the user, and the determined forward direction of the facial features of the user may be a forward direction of pupils of the user or a direction pointing from a chin of the user to a forehead of the user; or, the user facial feature information may also be only pupil information of the user, and the determined forward direction of the user facial feature may only be the forward direction of the user pupil; in this manner, the current reference direction may be determined only by perceiving the collected user facial feature information.

Alternatively, when the reference direction is the opposite direction of the gravity direction, a gyroscope disposed in the sensor disposition region of the display panel may be used to obtain the direction of the gravity, so as to obtain the opposite direction of the gravity direction as the reference direction.

Or, when the reference direction is a combined direction of the forward direction of the facial features of the user and the opposite direction of the gravity direction, the infrared sensor arranged in the sensor arrangement area of the display panel may be used to capture the facial feature information of the user, the gyroscope arranged in the sensor arrangement area of the display panel may be used to acquire the gravity direction, and the combined direction of the forward direction of the facial features of the user and the opposite direction of the gravity direction may be further determined as the reference direction by combining the captured facial feature information of the user and the acquired gravity direction.

Optionally, when each pixel unit in the display panel includes a plurality of sub-pixels of different colors, the display panel may further include a plurality of first signal lines and a plurality of second signal lines; the plurality of first signal lines are sequentially arranged along the radius direction, and at least part of sub-pixels belonging to the same concentric circle ring share the first signal lines; the second signal line extends along the radius direction, and at least part of the sub-pixels arranged along the radius direction share the second signal line; the first signal line may be a data signal line, and the second signal line is a scanning signal line; alternatively, the first signal line may be a scanning signal line, and the second signal line may be a data signal line. At this time, the scan signal may be transmitted to the corresponding sub-pixel through the scan signal line, and the data signal may be transmitted to each sub-pixel through the data signal line.

Correspondingly, fig. 13 is a flowchart of a display control method of a pixel unit according to an embodiment of the present invention. As shown in fig. 13, the method for controlling each pixel unit to display in a one-to-one correspondence manner according to the relative position relationship between the setting direction and the reference direction of the display panel includes:

and S121, acquiring gray scale data of an image to be displayed.

The image to be displayed is a frame of image to be displayed by the display panel; the gray scale data of the image to be displayed may include a plurality of data signals; when the display panel displays an image to be displayed, a corresponding data signal can be written into a corresponding pixel unit, so that the pixel unit can display light with corresponding brightness and color according to the data signal.

And S122, sequentially providing the enabling level of the scanning signal to each scanning signal line according to the relative position relationship, and providing the data signal to each data signal line in a one-to-one correspondence manner according to the gray scale data so that each pixel unit displays according to the data signal.

The enabling level of the scanning signal is a level signal which can write data signals transmitted by each data signal line crossed with the scanning signal line into the sub-pixels electrically connected with the data signal line; in contrast, when the scan signal is transmitted at the disable level, the data signal transmitted by each data signal line crossing the scan signal line cannot be written into the sub-pixel electrically connected to the data signal line.

For example, referring to fig. 7, when an included angle α exists between the setting direction Y and the reference direction Y 'of the display panel, the data signal corresponding to each pixel unit may be determined according to the included angle α between the setting direction Y and the reference direction Y' of the display panel and the gray scale data of the image to be displayed; when the enable level of the scanning signal is transmitted to each sub-pixel (11, 12, 13) of each pixel unit 10 through each scanning signal line 21, the data signal is provided to each data signal line 22 in a one-to-one correspondence manner, so that the data signal transmitted by each data signal line 22 is written into each sub-pixel (11, 12, 13) of each pixel unit 10 in a one-to-one correspondence manner, and each sub-pixel (11, 12, 13) displays according to the data signal written therein, thereby presenting an image to be displayed with a small included angle between the forward direction and the reference direction.

Optionally, on the basis of the foregoing embodiment, when the display panel further includes a scan driving circuit, the scan driving circuit includes a plurality of scan driving units arranged in a cascade manner, and the scan signal output end of each scan driving unit is electrically connected to each scan signal line in a one-to-one correspondence manner, the corresponding relationship between the data signal and each pixel unit may also be determined according to the relative position relationship between the set direction of the display panel and the reference direction. Fig. 14 is a flowchart of a signal writing method according to an embodiment of the present invention. As shown in fig. 14, the method of sequentially supplying the enable level of the scanning signal to each scanning signal line according to the relative positional relationship and supplying the data signal to each data signal line in one-to-one correspondence according to the gray-scale data includes:

and S12211, determining the data signals of the pixel units in a one-to-one correspondence manner according to the relative position relation and the gray scale data.

S12212, controlling each scan driving unit of the scan driving circuit to sequentially output the enable level of the scan signal to each scan signal line, and providing the data signal to each data signal line in a one-to-one correspondence manner according to the determined data signal of each pixel unit.

For example, as shown in fig. 9, when the first signal line 21 is a scanning signal line and the second signal line 22 is a data signal line, the data signal corresponding to each pixel unit is determined according to the relative position relationship between the setting direction Y and the reference direction Y' of the current display panel 100 and the gray-scale data of the image to be displayed. For example, if the setting direction Y of the current display panel 100 is a direction that is rotated from a direction parallel to the Y ' direction, the data signals of the pixel units 10 in the fan-shaped sub-display area 111 when the setting direction of the display panel 100 is the Y ' direction can be determined as the data signals of the pixel units 10 in the fan-shaped sub-display area 112 when the setting direction of the current display panel 100 is the Y direction, the data signals of the pixel units 10 in the fan-shaped sub-display area 112 when the setting direction of the display panel 100 is the Y ' direction can be determined as the data signals of the pixel units 10 in the fan-shaped sub-display area 113 when the setting direction of the current display panel 100 is the Y direction, and so on, the fan-shaped sub-display areas (111, 112, 113, and so on) can be determined as the setting direction of the current display panel 100 is the Y direction, 114. 115, 116, 117, and 118) of the pixel cells 10. When the scan driving units 31 of the scan driving circuit 30 are controlled to sequentially output the enable levels of the scan signals to the scan signal lines 21, the determined data signals of the pixel units are provided to the data signal lines 22 in a one-to-one correspondence, and are transmitted to the sub-pixels (11, 12, 13) of the pixel units 10 through the data signal lines 22, so that the pixel units 10 display light with corresponding brightness and color, and the included angle between the forward direction of the image to be displayed on the display panel 100 and the reference direction Y' is within a small angle range.

For example, as shown in fig. 10, when the first signal lines 21 are data signal lines and the second signal lines 22 are scanning signal lines, the output order of the data signals corresponding to each pixel unit can be determined according to the relative position relationship between the set direction Y and the reference direction Y' of the current display panel 100 and the gray scale data of the image to be displayed. For example, taking the reference direction Y' as a direction that appears after being rotated from a direction parallel to the Y direction as an example, if the order of controlling the respective scan driving units 31 of the scan driving circuit 30 to sequentially output the enable levels of the scan signals to the respective scan signal lines 22 is: starting from one scanning signal line 22 in the sector sub display 111 closest to the sector sub display area 118 toward one scanning signal line 22 in the sector sub display area 118 closest to the sector sub display 111 in the clockwise direction W, the data signal of each pixel unit 10 in the fan-shaped sub-display section 112 when the reference direction is the direction parallel to the Y direction can be determined as the data signal of each pixel unit 10 in the fan-shaped sub-display section 111 when the current reference direction is the Y 'direction, the data signal of each pixel unit 10 in the fan-shaped sub-display section 113 when the reference direction is the direction parallel to the Y direction can be determined as the data signal of each pixel unit 10 in the fan-shaped sub-display section 113 when the current reference direction is the Y' direction, and so on, the data signals of the pixel units 10 in the fan-shaped sub-display areas (111, 112, 113, 114, 115, 116, 117 and 118) when the current reference direction is the Y' direction can be determined. When controlling each scan driving unit 31 of the scan driving circuit 30 to sequentially output the enable level of the scan signal to each scan signal line 21, the data signal transmitted by each data signal line 21 may be sequentially supplied in the clockwise direction to each pixel unit 10 in the fan-shaped sub-display region 111 to each pixel unit 10 in the fan-shaped sub-display region 118, so that each pixel unit 10 displays light of corresponding brightness and color, and an angle between the forward direction of the image to be displayed on the display panel 100 and the reference direction Y' is within a small angle range.

Optionally, when the first signal line is a data signal line and the second signal line is a scanning signal line, the display panel may further include n scanning driving circuits disposed in one-to-one correspondence with the n sector sub-display regions; each scanning driving circuit comprises a plurality of scanning driving units which are arranged in a cascade mode; the scanning signal output ends of the scanning driving units of the same scanning driving circuit are electrically connected with the scanning signal lines in the same fan-shaped sub-display area in a one-to-one correspondence mode, so that the scanning driving units can correspondingly provide corresponding scanning signals for the scanning signal lines of the fan-shaped sub-display areas.

Accordingly, fig. 15 is a flowchart of another signal writing method according to an embodiment of the present invention. As shown in fig. 15, the method of sequentially supplying the enable level of the scanning signal to each scanning signal line according to the relative positional relationship and supplying the data signal to each data signal line in one-to-one correspondence according to the gray scale data includes:

and S12221, determining the starting sequence of each scanning driving circuit according to the relative position relation.

S12222, sequentially starting the scan driving circuits in the starting sequence, controlling the scan driving units of the scan driving circuits to sequentially output the enable levels of the scan signals to the scan signal lines, and providing the data signals in the gray-scale data to the data signal lines in a one-to-one correspondence manner in a preset output sequence.

Exemplarily, as shown in fig. 11, it is exemplified that the circular display area 101 of the display panel 100 includes 8 fan-shaped sub-display areas and the display panel 100 includes 8 scan driving circuits corresponding to the 8 fan-shaped sub-display areas one to one. The scanning driving circuits can be independently started and do not influence each other, but data signals transmitted by the same data signal line are respectively written into two different sub-pixels at a certain moment, and the scanning driving circuits can be started in a certain sequence. For example, when the setting direction and the reference direction of the display panel 100 are parallel and both are in the Y direction, the scan driving circuit 301 may be first activated, and after the last stage scan driving unit 31 of the scan driving circuit 301 outputs the enable level of the scan signal, the scan driving circuit 302 may be activated, and after the last stage scan driving unit 31 of the scan driving circuit 302 outputs the enable level of the scan signal, the scan driving circuit 303 is started, and so on, the scanning driving circuit 301, the scanning driving circuit 302, the scanning driving circuit 303, the scanning driving circuit 304, the scanning driving circuit 305, the scanning driving circuit 306, the scanning driving circuit 307, and the scanning driving circuit 308, which can be sequentially activated, provide data signals to each data signal line in a preset output sequence, so that each data signal line transmits the corresponding data signal to each sub-pixel; when the setting direction and the reference direction of the display panel 100 are the Y direction and the Y 'direction, respectively, the scan driving circuit 308, the scan driving circuit 301, the scan driving circuit 302, the scan driving circuit 303, the scan driving circuit 304, the scan driving circuit 305, the scan driving circuit 306, and the scan driving circuit 307 may be sequentially activated, and data signals may be provided to the data signal lines in the same preset output sequence, so that the data signal lines transmit corresponding data signals to the sub-pixels, so that the pixel units 10 display light with corresponding brightness and color, and an included angle between the forward direction of an image to be displayed on the display panel 100 and the reference direction Y' is within a smaller angle range.

Based on the same inventive concept, an embodiment of the present invention further provides a display device, where the display device includes a driving chip and the display panel provided by the embodiment of the present invention, and the driving chip is configured to execute the driving method of the display panel provided by the embodiment of the present invention. Therefore, the display device provided in the embodiment of the present invention has the technical features of the display panel provided in the embodiment of the present invention and the technical features of the driving method of the display panel provided in the embodiment of the present invention, and can achieve the beneficial effects of the display panel provided in the embodiment of the present invention and the driving method of the display panel provided in the embodiment of the present invention.

For example, fig. 16 is a schematic structural diagram of a display device according to an embodiment of the present invention. As shown in fig. 16, a display device 300 according to an embodiment of the present invention includes a circular display panel 100 and a driving chip 200 disposed in a driving chip disposing region of the circular display panel. The display device provided by the embodiment of the invention can include, but is not limited to, wearable devices (smart watches, smart bracelets, smart glasses, smart necklaces, and the like), instrument and meter displays in a space capsule, and the like.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, comprising: a circular display area;

the circular display area also comprises n fan-shaped sub-display areas which are sequentially arranged along the clockwise direction; the arrangement modes of the pixel units in the fan-shaped sub-display areas correspond to each other; wherein n is not less than 5 and is an integer;

the number of pixel units in each concentric ring is increased along the direction from the circle centers of the concentric rings to the edge of the circular display area.

2. The display panel of claim 1, wherein the shape of the peripheral outline of the pixel unit comprises a sector or a sector ring.

3. The display panel of claim 1, wherein the areas of any two of the pixel units are S1 and S2, respectively, and when S1 is equal to or greater than S2, 0 ≦ (S1-S2)/S1 ≦ 10%.

4. The display panel according to claim 3, wherein the height and the median bit line length of the pixel cell with an area of S1 are a1 and b1, respectively, and the height and the median bit line length of the pixel cell with an area of S2 are a2 and b2, respectively;

wherein 0 is less than or equal to (a1/b1) - (a2/b2) is less than or equal to 10 percent.

5. The display panel of claim 1, wherein each of the pixel units comprises a plurality of sub-pixels of different colors;

the display panel further comprises a plurality of first signal lines and a plurality of second signal lines;

the plurality of first signal lines are sequentially arranged along the radius direction, and at least part of the sub-pixels belonging to the same concentric ring share the first signal lines; the second signal line extends along the radius direction, and at least part of the sub-pixels arranged along the radius direction share the second signal line;

the first signal line is a data signal line, and the second signal line is a scanning signal line; or, the first signal line is a scanning signal line, and the second signal line is a data signal line;

the scanning signal line is used for transmitting a scanning signal to each sub-pixel; the data signal line is used for transmitting a data signal to each sub-pixel in a time-sharing mode.

6. The display panel of claim 5, wherein the number of the sub-pixels electrically connected to the second signal lines corresponding to the sub-pixels of different pixel units is decreased along a direction from one side of the fan-shaped sub-display section to the symmetry axis of the fan-shaped sub-display section.

7. The display panel according to claim 5, further comprising: a scan driving circuit;

the scanning driving circuit comprises a plurality of scanning driving units which are arranged in a cascade mode; the scanning signal output end of each scanning driving unit is electrically connected with each scanning signal line in a one-to-one correspondence manner;

and each scanning driving unit sequentially outputs the enabling level of a scanning signal to each scanning signal line.

8. The display panel according to claim 5, wherein when the first signal line is the data signal line and the second signal line is the scanning signal line, the display panel further comprises n scanning drive circuits provided in one-to-one correspondence with the n fan-shaped sub-display regions;

each scanning driving circuit comprises a plurality of scanning driving units which are arranged in a cascade mode; the scanning signal output ends of the scanning driving units of the same scanning driving circuit are electrically connected with the scanning signal lines in the same fan-shaped sub-display area in a one-to-one correspondence manner;

the scan driving units of the scan driving circuits sequentially output enable levels of scan signals to the scan signal lines in a preset sequence.

9. The display panel according to claim 1, further comprising: a sensor placement area;

the sensor setting area is used for setting an infrared sensor and/or a gyroscope.

10. A method of driving a display panel according to any one of claims 1 to 9, comprising:

when the display panel pre-displays an image to be displayed, acquiring a relative position relation between a set direction and a reference direction of the display panel; the reference direction comprises one of a forward direction of the user's facial features, a reverse direction of gravity, and a combined direction of the forward direction of the user's facial features and the reverse direction of gravity;

controlling each pixel unit to display in a one-to-one correspondence manner according to the relative position relationship, so that an included angle theta between the forward direction of the image to be displayed on the display surface and the reference direction is within a preset range; wherein theta is more than or equal to 0 and less than 2 pi/n.

11. The method for driving a display panel according to claim 10, wherein the display panel further comprises a sensor disposition region; the sensor setting area is used for setting an infrared sensor and/or a gyroscope;

before acquiring a relative positional relationship between a set direction and a reference direction of the display panel, the method includes:

capturing facial feature information of a user by adopting the infrared sensor; and/or, acquiring the direction of gravity by adopting the gyroscope;

and determining the reference direction according to the facial feature information of the user and/or the direction of the gravity.

12. The method for driving a display panel according to claim 10, wherein each of the pixel units includes a plurality of sub-pixels of different colors; the display panel further comprises a plurality of first signal lines and a plurality of second signal lines; the plurality of first signal lines are sequentially arranged along the radius direction, and at least part of the sub-pixels belonging to the same concentric ring share the first signal lines; the second signal line extends along the radius direction, and at least part of the sub-pixels arranged along the radius direction share the second signal line; the first signal line is a data signal line, and the second signal line is a scanning signal line; or, the first signal line is a scanning signal line, and the second signal line is a data signal line;

according to the relative position relationship, controlling each pixel unit to display in a one-to-one correspondence mode, and the method comprises the following steps:

acquiring gray scale data of the image to be displayed;

and sequentially providing the enabling level of a scanning signal to each scanning signal line according to the relative position relationship, and providing a data signal to each data signal line in a one-to-one correspondence manner according to the gray scale data so that each pixel unit displays according to the data signal.

13. The method for driving a display panel according to claim 12, wherein the display panel further comprises a scan driving circuit; the scanning driving circuit comprises a plurality of scanning driving units which are arranged in a cascade mode; the scanning signal output end of each scanning driving unit is electrically connected with each scanning signal line in a one-to-one correspondence manner;

according to the relative position relationship, sequentially providing the enable level of the scanning signal to each scanning signal line, and according to the gray scale data, providing the data signal to each data signal line in a one-to-one correspondence manner, including:

determining data signals of the pixel units in a one-to-one correspondence manner according to the relative position relation and the gray scale data;

and controlling each scanning driving unit of the scanning driving circuit to sequentially output the enabling level of the scanning signal to each scanning signal line, and providing data signals to each data signal line in a one-to-one correspondence manner according to the determined data signals of each pixel unit.

14. The method for driving a display panel according to claim 12, wherein when the first signal line is the data signal line and the second signal line is the scanning signal line, the display panel further includes n scanning drive circuits provided in one-to-one correspondence with the n fan-shaped sub-display regions; each scanning driving circuit comprises a plurality of scanning driving units which are arranged in a cascade mode; the scanning signal output ends of the scanning driving units of the same scanning driving circuit are electrically connected with the scanning signal lines in the same fan-shaped sub-display area in a one-to-one correspondence manner;

determining the starting sequence of each scanning driving circuit according to the relative position relation;

and sequentially starting the scanning drive circuits according to the starting sequence, controlling each scanning drive unit of each scanning drive circuit to sequentially output the enabling level of the scanning signal to each scanning signal line, and correspondingly providing the data signals in the gray scale data to each data signal line one by one according to a preset output sequence.

15. A display device, comprising: a driving chip and the display panel according to any one of claims 1 to 9;

the driving chip is used for executing the driving method of the display panel according to any one of claims 10 to 14.