CN112002238B - Display panel and display device - Google Patents
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- CN112002238B CN112002238B CN202010929491.3A CN202010929491A CN112002238B CN 112002238 B CN112002238 B CN 112002238B CN 202010929491 A CN202010929491 A CN 202010929491A CN 112002238 B CN112002238 B CN 112002238B
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Abstract
The invention discloses a display panel and a display device, which relate to the technical field of display and comprise a display area and a non-display area, wherein the display area comprises a first display area and a second display area at least partially surrounding the first display area, the display area comprises a plurality of sub-pixels, and the pixel density of the first display area is less than that of the second display area; in the second display area, the sub-pixels are arranged along the first direction to form a plurality of pixel columns, the sub-pixels are arranged along the second direction to form a plurality of pixel rows, and the first direction is vertical to the second direction; the first display area comprises at least two edge pixel groups which are oppositely arranged, and each edge pixel group is adjacent to the second display area and comprises a plurality of sub-pixels respectively; the two edge pixel groups which are arranged oppositely correspond to each other one by one, the two sub-pixels which are in one-to-one correspondence are symmetrically arranged along a first symmetry axis, and the extension direction of the first symmetry axis is a first direction or a second direction. Thereby facilitating a smooth transition of the boundary between the first display area and the second display area.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
With the development of display technology, display panels have higher screen occupation ratio, and full screens have wide attention due to the narrow-frame or even frameless display effect. At present, spaces are often reserved for electronic photosensitive devices such as commonly used front cameras, infrared sensing devices and fingerprint identification devices on the front of display equipment such as mobile phones and tablet computers. For example, the photosensitive devices are arranged at the top position of the front surface of the display device, and the corresponding positions form a non-display area, so that the screen occupation ratio of the device is reduced.
In the prior art, in order to increase the screen ratio, a high-transmittance region may be formed in the display region of the display panel to accommodate the above-mentioned light sensing device.
With the development and demand of full-screen, more and more electronic photosensitive devices are required to be integrated below the screen. For example, a semi-transparent area is arranged on the display screen, and the camera is arranged below the screen and correspondingly arranged in the semi-transparent area. During normal display, the semi-permeable area can play a display role; when needing to shoot or take a video, the camera shoots photos or videos through the semi-transparent area, so that the semi-transparent area can synchronously realize the functions of displaying and shooting. However, since the semi-transmissive region needs to realize a display function, display sub-pixels are disposed in the semi-transmissive region, and in a boundary region between the semi-transmissive region and the normal display region, the display sub-pixels are often unevenly distributed, so that the boundary between the semi-transmissive region and the normal display region is obvious, and the display effect of the display panel is affected.
Disclosure of Invention
In view of the above, the present invention provides a display panel and a display device to solve the problem of the prior art that the boundary difference between the semi-transmissive area and the normal display area is obvious.
In a first aspect, the present application provides a display panel, including a display area and a non-display area, where the display area includes a first display area and a second display area at least partially surrounding the first display area, the display area includes a plurality of sub-pixels, and a pixel density of the first display area is less than a pixel density of the second display area;
in the second display area, the sub-pixels are arranged along a first direction to form a plurality of pixel columns, the sub-pixels are arranged along a second direction to form a plurality of pixel rows, and the first direction is vertical to the second direction;
the first display area comprises at least two edge pixel groups which are oppositely arranged, and each edge pixel group is adjacent to the second display area and comprises a plurality of sub-pixels respectively; the sub-pixels in the two oppositely arranged edge pixel groups are in one-to-one correspondence, the two one-to-one correspondence sub-pixels are symmetrically arranged along a first symmetry axis, and the extension direction of the first symmetry axis is the first direction or the second direction.
In a second aspect, the present application provides a display device including the display panel provided in the present application.
Compared with the prior art, the display panel and the display device provided by the invention at least realize the following beneficial effects:
in the display panel and the display device provided by the invention, the pixel density of the first display area is smaller than that of the second display area, so that the transmittance of the first display area is favorably ensured. Particularly, the first display area comprises at least two oppositely arranged edge pixel groups, the edge pixel groups are adjacent to the second display area, sub-pixels in the two oppositely arranged edge pixel groups are in one-to-one correspondence, and the two sub-pixels in the one-to-one correspondence are symmetrically arranged along the first symmetry axis; that is to say, at the border department that second display area and first display area are adjacent, the sub-pixel in two borders of relative setting is the symmetry setting, and the quantity and the characteristics of arranging of sub-pixel are the same completely, thereby make two marginal pixel groups of relative setting send luminance more closely when luminous, be favorable to reducing marginal area sub-pixel and distribute the uneven problem that leads to the border difference to be obvious, consequently be favorable to realizing the smooth transition of border between first display area and the second display area, promote display panel and display device's display effect.
Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, 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 pixel arrangement of a semi-transparent region of a related art display panel;
fig. 2 is a top view of a display module according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a pixel arrangement in a region Q of the second display region of FIG. 2;
FIG. 4 is a schematic view of a pixel arrangement of the first display region of FIG. 2;
FIG. 5 is a schematic view of another pixel arrangement of the first display region of FIG. 2;
FIG. 6 is a schematic view of another pixel arrangement of the first display region of FIG. 2;
FIG. 7 is a schematic diagram showing a sub-pixel comparison between a first display region and a second display region;
fig. 8 is a structural diagram of a display device according to an embodiment of the invention.
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, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those 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 particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 is a schematic diagram illustrating a pixel arrangement of a semi-transmissive region in a related art display panel, in fig. 1, two sub-pixels P 'are distributed in a first row H1, and two sub-pixels P' are distributed in a last row H0, but the sub-pixels in the first row and the sub-pixels in the last row are not distributed at the same position; four sub-pixels P 'are distributed in the first column L1, two sub-pixels P' are distributed in the last column L0, and the number and arrangement of the sub-pixels in the first column L1 and the last column L0 are completely different. In fig. 1, the first row of sub-pixels, the last row of sub-pixels, the first column of sub-pixels, and the last column of sub-pixels are edge regions of the semi-transmissive region, and are respectively adjacent to the normal display region, and due to uneven distribution of sub-pixels in the edge regions of the semi-transmissive region, the boundary difference between the semi-transmissive region and the normal display region is obvious, and the overall display effect of the display panel is affected.
In view of the above, the present invention provides a display panel and a display device to solve the problem of the prior art that the boundary difference between the semi-transmissive area and the normal display area is obvious.
The following detailed description is to be read in connection with the drawings and the detailed description.
Fig. 2 is a top view of a display module according to an embodiment of the invention, fig. 3 is a schematic diagram of a pixel arrangement of a region Q of a second display area in fig. 2, fig. 4 is a schematic diagram of a pixel arrangement of a first display area in fig. 2, please refer to fig. 2 to 4, the invention provides a display panel 100, which includes a display area AA and a non-display area NA, the display area AA includes a first display area AA1 and a second display area AA2 at least partially surrounding the first display area AA1, the display area AA includes a plurality of sub-pixels P, and a pixel density of the first display area AA1 is less than a pixel density of the second display area AA 2;
referring to fig. 3, in the second display area AA2, the sub-pixels P are arranged along a first direction to form a plurality of pixel columns, the sub-pixels P are arranged along a second direction to form a plurality of pixel rows, and the first direction is perpendicular to the second direction;
referring to fig. 4, the first display area AA1 includes at least two edge pixel groups BP disposed opposite to each other, each edge pixel group BP is adjacent to the second display area AA2 and includes a plurality of sub-pixels P, respectively; the sub-pixels P in the two edge pixel groups BP arranged oppositely are in one-to-one correspondence, the two sub-pixels P in one-to-one correspondence are symmetrically arranged along a first symmetry axis Z1, and the extending direction of the first symmetry axis Z1 is a first direction or a second direction.
It should be noted that fig. 2 only illustrates the display panel 100 as a rectangular display panel 100, in some other embodiments of the present application, the display panel 100 may also be embodied in other shapes, such as a circle, an ellipse, or a special-shaped structure, and the size of the first display area AA1 is also only illustrated and does not represent an actual size. Fig. 2 shows only one position of the first display area AA1 on the display panel 100, in some other embodiments of the present application, the first display area AA1 may be disposed at other positions of the display panel 100, and the number of the first display areas AA1 may also be two or more. In addition, fig. 2 only shows that the second display area AA2 completely surrounds the first display area AA1, and in some other embodiments of the present application, the second display area AA2 may also half surround the first display area AA1, which is not specifically limited in this application. Fig. 3 and 4 only show a part of the sub-pixels P in the second display area AA2 and the first display area AA1, respectively, and do not represent the actual number and arrangement of the sub-pixels P included in the second display area AA2 and the first display area AA1, and fig. 3 and 4 do not represent the actual size of the sub-pixels P, and are only schematic.
Specifically, referring to fig. 2 to fig. 4, in the display panel 100 provided by the present invention, the display area AA includes a first display area AA1 and a second display area AA2 at least partially surrounding the first display area AA1, the display area AA includes a plurality of sub-pixels P, and the pixel density of the first display area AA1 is less than that of the second display area AA2, so that the first display area AA1 can perform both the image display function and the light sensing function, and has a higher transmittance in the light sensing process, so as to improve the light sensing performance of the first display area AA 1. In particular, referring to fig. 2 to fig. 4, the first display area AA1 includes at least two edge pixel groups BP1 and BP2 that are disposed oppositely, the edge pixel groups BP1 and BP2 are both adjacent to the second display area AA2, sub-pixels P in the two edge pixel groups BP1 and BP2 that are disposed oppositely are in one-to-one correspondence, and the two sub-pixels P that are in one-to-one correspondence are symmetrically disposed along the first symmetry axis Z1; in the view shown in fig. 4, the edge pixel group BP1 and the edge pixel group BP1 are symmetrical along a first symmetry axis Z1, and the extending direction of the first symmetry axis Z1 is a second direction. That is to say, at the boundary between the second display area AA2 and the first display area AA1, the subpixels P in the two opposite boundaries are symmetrically arranged, and the number and arrangement characteristics of the subpixels P are completely the same, so that the light-emitting brightness of the two edge pixel groups BP arranged opposite to each other is closer when emitting light, which is beneficial to reducing the problem that the boundary difference is obvious due to uneven distribution of the subpixels P in the edge area in the related art, and therefore, the smooth transition of the boundary between the first display area AA1 and the second display area AA2 is facilitated, and the display effect of the display panel 100 is improved.
In an alternative embodiment of the present invention, referring to fig. 4, in the two edge pixel groups BP1 and BP2 that are oppositely disposed, the two subpixels P that are in one-to-one correspondence have the same color. It should be noted that, in fig. 3 and fig. 4, the sub-pixels P filled in the same way represent the same light emitting color.
In particular, considering that the light emitting luminance of the sub-pixels P having the same color is the same or similar under the same driving voltage, the present invention sets the colors of the two sub-pixels P corresponding one to one in the two edge pixel groups BP1 and BP2 to be the same, and when the first display area AA1 is used for displaying, the light-emitting luminance of the two sub-pixels P disposed in one-to-one correspondence will be the same or similar, thereby enabling the overall light-emitting brightness of the two oppositely-arranged edge pixel groups BP1 and BP2 to be closer, being more beneficial to reducing the brightness difference between the two oppositely-arranged edge pixel groups BP1 and BP2, so that the brightness connection effect of the two oppositely arranged edge pixel groups BP1 and BP2 and the second display area AA2 is more consistent, therefore, smooth transition of the brightness of the first display area AA1 and the second display area AA2 is more facilitated, the boundary effect is weakened, and the display effect of the display panel is improved.
In an alternative embodiment of the present invention, with continued reference to fig. 4, in the first display area AA1, the sub-pixels P form a plurality of first pixel groups PZ1 and a plurality of second pixel groups PZ2, the sub-pixels P in each first pixel group PZ1 are arranged along a third direction, the sub-pixels P in each second pixel group PZ2 are arranged along a fourth direction, the third direction intersects the fourth direction, and the third direction and the fourth direction intersect the first direction and the second direction; the adjacent two first pixel groups PZ1 and the adjacent two second pixel groups PZ2 intersect in a parallelogram structure.
Specifically, in the embodiment shown in fig. 4, in the first display area AA1, the sub-pixels P in the first pixel group PZ1 are arranged in the third direction, the sub-pixels P in the second pixel group PZ2 are arranged in the fourth direction, and two adjacent first pixel groups PZ1 and two adjacent second pixel groups PZ2 intersect to form a parallelogram structure. The arrangement structure of the parallelogram structure enables arrangement of the sub-pixels P in the first display area AA1 to be more uniform, and when the first display area AA1 is used for displaying, the whole display brightness of the first display area AA1 is more uniform, so that the problem of obvious visual granular sensation caused by uneven arrangement of the sub-pixels P in the first display area AA1 is favorably solved, and the display effect of the display panel in the first display area AA1 is favorably improved. In addition, the sub-pixels P in the first display area AA1 are arranged in a parallelogram, and the sub-pixels P are not disposed in the central area of the parallelogram, so as to increase the transmittance of the first display area AA1, and therefore, when the first display area AA1 is used as a sensing light, the light sensing performance of the first display area AA1 is improved.
It should be noted that, when the sub-pixels P in the first display area AA1 are arranged in a parallelogram, optionally, the arrangement may also be embodied as a diamond or a square, and an extending direction of a connecting line of two opposite vertices in the diamond or the square is a first direction or a second direction, so that the arrangement of the sub-pixels P in the first display area AA1 is more uniform, which is more beneficial to improving the display effect of the first display area AA 1.
In an alternative embodiment of the present invention, please refer to fig. 2 and fig. 3, the sub-pixels P are uniformly arranged in the second display area AA 2; the second display area AA2 includes a first sub-area Q0, the area of the first sub-area Q0 being equal to the area of the first display area AA 1;
the sub-pixel P comprises a first color sub-pixel P1, a second color sub-pixel P2 and a third color sub-pixel P3; the total number of the first color sub-pixels P1 included in the first display area AA1 is N r The total number of the first color sub-pixels P1 included in the first sub-region Q0 is N R (ii) a The total number of the second color sub-pixels P2 included in the first display area AA1 is S g The total number of the second color sub-pixels P2 included in the first sub-area Q0 is S G (ii) a The total number of the third color sub-pixels P3 included in the first display area AA1 is P b The total number of the third color sub-pixels P3 included in the first sub-area Q0 is P B (ii) a Wherein N is r ＜N R ，S g ＜S G ，P b ＜P B 。
It should be noted that the sub-pixels P in the second display area AA2 are uniformly arranged, the first sub-area Q0 in the second display area AA2 can be located at any position of the second display area AA2, and the first sub-area Q0 is an area with an area equal to that of the first display area AA1, and the present invention reflects the comparison between the number of pixels in the first sub-area Q0 and the number of pixels in the first display area AA1 by comparing the sub-pixels P in the first sub-area Q0 and the first display area AA 1. The region Q in fig. 2 may be equivalent to the first sub-region Q0 in the present invention, and the pixel arrangement of the first sub-region Q0 can be seen in fig. 3.
Specifically, referring to fig. 2, fig. 3 and fig. 4, the first sub-area Q0 and the first display area AA1 each include a first color sub-pixel P1, a second color sub-pixel P2 and a third color sub-pixel P3, wherein the total number of the first color sub-pixels P1, the total number of the second color sub-pixels P2 and the total number of the third color sub-pixels P3 contained in the first display area AA1 are all smaller than the total number of the first color sub-pixels P1, the total number of the second color sub-pixels P2 and the total number of the third color sub-pixels P3 correspondingly contained in the first sub-area Q0, that is, N is N r ＜N R ，S g ＜S G ，P b ＜P B That is to say, in the first display area AA1 and the second display area AA2 with the same unit area, the numbers of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3 included in the first display area AA1 are uniformly reduced, so that the overall space occupied by the sub-pixels P of various colors in the first display area AA1 is reduced, and therefore, the area of the light-transmitting area in the first display area AA1 is increased, and the transmittance of the first display area AA1 is increased, so as to improve the light-sensing performance of the first display area AA1 when sensing light.
Alternatively, the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3 in the present invention are respectively one of a red sub-pixel, a green sub-pixel and a blue sub-pixel.
In an alternative embodiment of the present invention, the pixel density of the first display area AA1 is M, and the pixel density of the second display area AA1 is M, where M is k 1M, where k1 is 1/3 is not less than 3/4.
The pixel density, or PPI, represents the number of Pixels Per Inch in the display panel 100. In the invention, the pixel density of the first display area AA1 is less than that of the second display area AA2, and the ratio of the pixel density M of the first display area to the pixel density M of the second display area AA2 is set to be k1, wherein k1 is not less than 1/3 and not more than 3/4. If k1 is less than 1/3, the number of the sub-pixels P included in the first display area AA1 is too small, and the display quality of the first display area AA1 is greatly reduced; if k1 is greater than 3/4, the number of the sub-pixels P included in the first display area AA1 is too large, and the first display area AA1 occupies too much space, so that the transmittance of the first display area AA1 is greatly reduced, and the requirement of the first display area AA1 for high transmittance cannot be met. In view of this, the ratio of the pixel density M of the first display area to the pixel density M of the second display area AA2 is set to be 1/3-k 1-3/4, which is favorable to ensure the number of sub-pixels P required for displaying in the first display area AA1 and further ensure the display quality of the first display area AA1, and is favorable to ensure the requirement of the first display area AA1 on high transmittance, thereby being favorable to ensure the photosensitivity of the first display area AA 1.
Optionally, the ratio of the pixel density M of the first display area AA1 to the pixel density M of the second display area AA2 is set to 2/3 as k1, which can effectively give consideration to the aperture opening ratio and the PPI of the first display area AA1, and is beneficial to improving the display quality of the first display area AA1 while ensuring the high transmittance of the first display area AA 1.
In an alternative embodiment of the present invention, (N) r +S g +P b )＝k2*(N R +S G +P B ) Wherein, k2 is not less than 1/3 but not more than 2/3.
With reference to fig. 2 to fig. 4, the embodiment shows a relationship between the total number of the sub-pixels P included in the first display area AA1 and the total number of the sub-pixels P included in the first sub-area Q0 (the area of which is the same as that of the first display area AA1, and is any one of the second display areas AA 2), that is, a relationship between the total numbers of the sub-pixels P included in the first display area AA1 and the second display area AA2 in the same unit area. Specifically, the ratio k2 between the total number of the sub-pixels P included in the first display area AA1 and the total number of the sub-pixels P included in the first sub-area Q0 is set to be 1/3 to 2/3, that is, the total number of the sub-pixels P included in the first display area AA1 is 1/3 to 2/3 of the total number of the sub-pixels P included in the first sub-area Q0. If k2 < 1/3, the total number of the sub-pixels P included in the first display area AA1 is too small, and the display quality of the first display area AA1 is greatly reduced; if k2 is greater than 2/3, the number of the sub-pixels P included in the first display area AA1 is too large, and the first display area AA1 occupies too much space, so that the transmittance of the first display area AA1 is greatly reduced, and the requirement of the first display area AA1 for high transmittance cannot be met. Based on this, the ratio k2 between the total number of the sub-pixels P contained in the first display area AA1 and the total number of the sub-pixels P contained in the first sub-area Q0 is set to 1/3 or more and k2 or more and 2/3 or less, which is favorable for ensuring the number of the sub-pixels P required by the display of the first display area AA1 and further ensuring the display quality of the first display area AA1 on the one hand, and is favorable for ensuring the requirement of the first display area AA1 on high transmittance and further favorable for ensuring the light sensitivity of the first display area AA1 on the other hand.
Alternatively, the ratio k2 between the total number of the sub-pixels P included in the first display area AA1 and the total number of the sub-pixels P included in the first sub-area Q0 may also be 1/2, 4/9, 5/9, and so on. The ratio of the pixel density of the first display area AA1 to the pixel density of the first sub-area Q0 is 2/3 when k1 is set, and the ratio of the total number of the sub-pixels P in the first display area AA1 to the total number of the sub-pixels P in the first sub-area Q0 is 4/9 when k2 is 5/9 or k2 is set, so that the invention is a better scheme for taking account of the aperture ratio and the pixel density of the first display area AA1, and is beneficial to ensuring the high transmittance of the first display area AA1 while ensuring the display quality of the first display area AA 1.
In an alternative embodiment of the present invention, fig. 5 is a schematic view illustrating another pixel arrangement of the first display area AA1 in fig. 2, where N is in the first display area AA1 r ＜S g And/or N r ＜P b When N is present r ＜S g At this time, the total area of the orthographic projection of the first color sub-pixel P1 on the light emitting surface of the display panel 100 is larger than that of the second color sub-pixel P1The total area of the orthographic projection of the sub-pixel P2 on the light emitting surface; when N is present r ＜P b Meanwhile, the total area of the orthographic projection of the first color sub-pixel P1 on the light emitting surface of the display panel 100 is larger than the total area of the orthographic projection of the third color sub-pixel P3 on the light emitting surface.
Specifically, fig. 5 shows a case where the total number of the first-color sub-pixels P1 is smaller than the total number of the second-color sub-pixels P2 and is smaller than the total number of the third-color sub-pixels P3 in the three-color sub-pixels P included in the first display area AA 1. When the total number of the first color sub-pixels P1 is the smallest, the total area of the orthographic projection of the first color sub-pixel P1 on the light-emitting surface of the display panel 100 is set to be larger than the total area of the orthographic projection of the second color sub-pixel P2 on the light-emitting surface, and at the same time, the total area of the orthographic projection of the third color sub-pixel P3 on the light-emitting surface, so as to make up for the phenomenon that the display image in the first display area AA1 may have color cast due to the decrease of the total number of the first color sub-pixels P1, and therefore, when the total number of the first color sub-pixels P in the first display area AA1 is smaller, the method of increasing the total area of the orthographic projection of the color sub-pixels P on the light-emitting surface is beneficial to improve the image display quality of the first display area AA1, decrease the possibility of color cast, and further increase the area of the orthographic projection of the first color sub-pixels P1 on the light-emitting surface with a smaller number, it is also beneficial to increase the lifetime of the first color sub-pixel P1, and thus the lifetime of the display panel 100. It should be noted that this example only illustrates that the total number of the first color sub-pixels P1 is the minimum, and in some other embodiments of the present invention, the smaller number of the sub-pixels P may also be embodied as the second color sub-pixel P2 or the third color sub-pixel P3, which is not specifically limited by the present invention.
It is understood that fig. 5 only shows a case where the numbers of the second color sub-pixels P2 and the third color sub-pixels P3 in the first display area AA1 are equal, and the number of the first color sub-pixels P1 is less than the numbers of the second color sub-pixels P2 and the third color sub-pixels P3. In some other embodiments of the present invention, the numbers of the second color sub-pixel P2 and the third color sub-pixel P3 may be different, and when the total numbers of the second color sub-pixel P2 and the third color sub-pixel P3 are different, the total area of the orthographic projection of the one with the smaller number on the light emitting surface may be set larger than the total area of the orthographic projection of the one with the larger number on the light emitting surface, so as to reduce the color cast phenomenon that may be caused by the difference of the light emitting brightness.
Of course, in some other embodiments of the present invention, in the first display area AA1, the total number of the first color sub-pixels P1 may also be greater than the total number of the second color sub-pixels P2 and the total number of the third color sub-pixels P3, for example, please refer to fig. 6, fig. 6 shows another schematic pixel arrangement diagram of the first display area AA1 in fig. 2, the arrangement shown in fig. 6 is also beneficial to reducing the problem that the boundary difference is obvious due to uneven distribution of the edge area sub-pixels P in the related art, so that the smooth transition of the boundary between the first display area AA1 and the second display area AA2 is facilitated, and the display effect of the display panel 100 is improved.
In an alternative embodiment of the present invention, in the first display area AA1, please continue to refer to FIG. 5 when N r ＜S g When the light source is turned on, the area of the orthographic projection of any first color sub-pixel P1 on the light emitting surface is larger than the area of any second color sub-pixel P2 on the light emitting surface; when N is present r ＜P b In this case, the area of the orthogonal projection of any first color sub-pixel P1 on the light emitting surface is larger than the area of any third color sub-pixel P3 on the light emitting surface.
Specifically, with reference to fig. 5, in the first display area AA1, when the total number of the color sub-pixels P is smaller, the present invention reduces the display color shift by increasing the total area of the orthographic projection of the color sub-pixels P on the light-emitting surface, and the embodiment takes the smaller number of the first color sub-pixels P1 as an example, when N is smaller r ＜S g In order to realize that the total area of the orthographic projection of the first color sub-pixel P1 on the light emitting surface is larger than the total area of the orthographic projection of the second color sub-pixel P2 on the light emitting surface when the total number of the first color sub-pixels P1 in the first display area AA1 is smaller than the total number of the second color sub-pixels P2, the area of each first color sub-pixel P1 on the light emitting surface in the first display area AA1 is properly increased, so that the total area of each first color sub-pixel P1 on the light emitting surface is larger than that of each second color sub-pixel P1The total area of the orthographic projection of the color sub-pixel P2 on the light emitting surface is optionally equal to the total area of the orthographic projection of each first color sub-pixel P1 in the first display area AA1 on the light emitting surface. Therefore, the area distribution of each first color sub-pixel P1 is uniform, and the luminance of the first color sub-pixel P1 in the first display area AA1 is more uniform, which is more beneficial to improving the overall display luminance uniformity of the first display area AA 1. In the same way, when N r ＜P b When the total number of the first color sub-pixels P1 in the first display area AA1 is smaller than the total number of the third color sub-pixels P3, in order to achieve that the total area of the orthographic projection of the first color sub-pixels P1 on the light emitting surface is larger than the total area of the orthographic projection of the third color sub-pixels P3 on the light emitting surface, the area of each first color sub-pixel P1 on the light emitting surface in the first display area AA1 is increased appropriately, so that the total area of each first color sub-pixel P1 on the light emitting surface is larger than the total area of the orthographic projection of each third color sub-pixel P3 on the light emitting surface, and optionally, the total areas of the orthographic projections of each first color sub-pixel P1 on the light emitting surface in the first display area AA1 are equal. Therefore, the area distribution of each first color sub-pixel P1 is uniform, which is also beneficial to making the luminance of the first color sub-pixel P1 in the first display area AA1 more uniform, and is more beneficial to improving the overall display luminance uniformity of the first display area AA 1.
In an alternative embodiment of the present invention, please refer to fig. 2 to fig. 4, the total number of any one of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3 in the first display area AA1 is 1/3 of the total number of the same color sub-pixels P in the first sub-area Q0, and the total number of any one of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3 in the first display area AA1 is 2/3 of the total number of the same color sub-pixels P in the first sub-area Q0.
Specifically, in order to ensure high transmittance of the first display area AA1, the present invention reduces the number of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3 included in the first display area AA1, wherein the reduction is compared with the same area in the second display area AA2, for example, compared with the first sub-area Q0. When the number of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3 in the first display area AA1 is reduced, the present invention reduces the number of any one of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3 to 1/3 of the number of the same color sub-pixels P in the first sub-area Q0, and reduces the number of any one of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3 to 2/3 of the number of the same color sub-pixels P in the first sub-area Q0, thereby being advantageous to ensure that the first display area AA1 displays a desired PPI, ensure display quality of the first display area AA1, and ensure high transmittance of the first display area AA 1.
In an alternative embodiment of the present invention, please combine fig. 3 and fig. 4, N r ＝2*N R /3，S g ＝2*S G /3，P b ＝P B A/3; or, N r ＝N R /3，S g ＝2*S G /3，P b ＝2*P B A/3; or, N r ＝2*N R /3，S g ＝S G /3，P b ＝2*P B /3。
Specifically, with reference to table 1, fig. 3 and fig. 4, table 1 shows three embodiments when the number of any one of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3 in the first display area AA1 is reduced to 1/3 which is the number of the same color sub-pixels P in the first sub-area Q0, and the number of any one of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3 is reduced to 2/3 which is the number of the same color sub-pixels P in the first sub-area Q0. In table 1, in the corresponding embodiment a, the number of the third color sub-pixels P3 in the first display area AA1 is reduced to 1/3 of the total number of the third color sub-pixels P3 in the first sub-area Q0, and the total number of the remaining two color sub-pixels P is reduced to 2/3 of the corresponding number of the color sub-pixels P in the first sub-area Q0; in the embodiment b corresponding to table 1, the number of the first color sub-pixels P1 in the first display area AA1 is reduced to 1/3 of the total number of the first color sub-pixels P1 in the first sub-area Q0, and the total number of the remaining two colors of sub-pixels P is reduced to 2/3 of the total number of the corresponding color sub-pixels P in the first sub-area Q0; in example c of table 1, the number of the second color sub-pixels P2 of the first display area AA1 is reduced to 1/3 of the total number of the second color sub-pixels P2 in the first sub-area Q0, and the total number of the remaining two color sub-pixels P is reduced to 2/3 of the total number of the corresponding color sub-pixels P in the first sub-area Q0.
TABLE 1 comparison of the number of subpixels P in the first display area AA1 and the first sub-area Q0
| N r /N R | S g /S G | P b /P B | |
| a | 2/3 | 2/3 | 1/3 |
| b | 1/3 | 2/3 | 2/3 |
| c | 2/3 | 1/3 | 2/3 |
The number setting mode of the three embodiments a, b, and c shown in table 1 is adopted, so that the ratio of the pixel density of the first display area AA1 to the pixel density of the first sub-area Q0 is 5/9, and the ratio of the total number of the sub-pixels P in the first display area AA1 to the total number of the sub-pixels P in the first sub-area Q0 is set to k2 ═ 5/9, which is a better scheme taking account of the aperture ratio and the pixel density of the first display area AA1, and is beneficial to ensuring the high transmittance of the first display area AA1 while ensuring the display quality of the first display area AA 1.
In an alternative embodiment of the invention, N r ＝2*N R /3，S g ＝S G /3，P b ＝P B 3, performing the following steps; or, N r ＝N R /3，S g ＝2*S G /3，P b ＝P B A/3; or, N r ＝N R /3，S g ＝S G /3，P b ＝2*P B /3。
Specifically, with reference to table 2 and fig. 2 to 4, table 2 shows three other embodiments when the number of any one of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3 in the first display area AA1 is reduced to 1/3 of the number of same color sub-pixels P in the first sub-area Q0, and the number of any one of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3 is reduced to 2/3 of the number of same color sub-pixels P in the first sub-area Q0. In the embodiment d corresponding to table 2, the number of the first color sub-pixels P1 in the first display area AA1 is reduced to 2/3 of the total number of the first color sub-pixels P1 in the first sub-area Q0, and the total number of the remaining two color sub-pixels P is reduced to 1/3 of the corresponding total number of the color sub-pixels P in the first sub-area Q0; table 2 shows an embodiment e in which the number of the second color sub-pixels P2 in the first display area AA1 is reduced to 2/3 of the total number of the second color sub-pixels P2 in the first sub-area Q0, and the total number of the remaining two color sub-pixels P is reduced to 1/3 of the corresponding total number of the color sub-pixels P in the first sub-area Q0; in example f of table 2, the number of the third color sub-pixels P3 of the first display area AA1 is reduced to 2/3 of the total number of the third color sub-pixels P3 in the first sub-area Q0, and the total number of the remaining two color sub-pixels P is reduced to 1/3 of the total number of the corresponding color sub-pixels P in the first sub-area Q0.
TABLE 2 comparison of the number of sub-pixels P in the first display area AA1 and the first sub-area Q0
| N r /N R | S g /S G | P b /P B | |
| d | 2/3 | 1/3 | 1/3 |
| e | 1/3 | 2/3 | 1/3 |
| f | 1/3 | 1/3 | 2/3 |
The number setting mode of three embodiments d, e, and f shown in table 2 is adopted, so that the ratio of the pixel density of the first display area AA1 to the pixel density of the first sub-area Q0 is 4/9, and the ratio of the total number of the sub-pixels P in the first display area AA1 to the total number of the sub-pixels P in the first sub-area Q0 is 4/9 instead of k2, which is also a better scheme that the aperture ratio and the pixel density of the first display area AA1 are both considered, and while the display quality of the first display area AA1 is ensured, the high transmittance of the first display area AA1 is also ensured.
In an alternative embodiment of the invention, fig. 7 is a schematic diagram illustrating a comparison of sub-pixels P in a first display area AA1 and a second display area AA2, where in the first display area AA1, the areas of orthogonal projections of the sub-pixels P with the same color on the light-emitting surface of the display panel 100 are equal; in the second display area AA2, the areas of the orthographic projections of the sub-pixels P with the same color on the light emitting surface are equal; in the same color sub-pixel P: the area of the orthographic projection of the sub-pixel P in the first display area AA1 on the light emitting surface is larger than the area of the orthographic projection of the sub-pixel P in the second display area AA2 on the light emitting surface.
Specifically, with reference to fig. 7, the areas of the orthographic projections of the sub-pixels P with the same color in the first display area AA1 on the light-emitting surface of the display panel 100 are set to be equal, which is favorable for improving the uniformity of the luminance distribution of the sub-pixels P with different colors in the first display area AA1, and is further favorable for improving the uniformity of the overall luminance display of the first display area AA 1. Meanwhile, the orthogonal projection areas of the sub-pixels P with the same color in the second display area AA2 on the light emitting surface of the display panel 100 are set to be equal, which is favorable for improving the uniformity of the brightness distribution of the sub-pixels P with various colors in the second display area AA2, and is further favorable for improving the overall display brightness uniformity of the second display area AA 2.
In the present invention, since the total number of the sub-pixels P included in the first display area AA1 is less than the total number of the sub-pixels P included in the first sub-area Q0, and in order to reduce the display luminance difference caused by the reduction of the number of the sub-pixels P, in the sub-pixels P with the same color, the area of the sub-pixel P located in the first display area AA1 is set to be larger than the area of the sub-pixel P located in the second display area AA2, so that the light emitting area of each sub-pixel P in the first display area AA1 can be increased to a certain extent, and the display luminance possibly reduced in the first display area AA1 due to the reduction of the number of the sub-pixels P, which is beneficial to reducing the display luminance difference between the first display area AA1 and the second display area AA2, and further improving the overall display luminance uniformity of the first display area AA1 and the second display area AA 2.
It should be noted that, while the area of the orthographic projection of each sub-pixel in the first display area AA1 on the light emitting surface is increased, the size relationship among the three may be adjusted according to the quantity relationship among the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3 in the first display area AA1, for example, when the quantity of the first color sub-pixel P1 in the first display area is minimum, the area of the orthographic projection of the first color sub-pixel P1 on the light emitting surface may be appropriately increased to be larger than the area of the orthographic projection of the second color sub-pixel P2 and the area of the orthographic projection of the third color sub-pixel P3 on the light emitting surface, so as to compensate the color cast phenomenon possibly caused by the quantity difference, and improve the display effect of the first display area AA 1.
Based on the same inventive concept, the present invention further provides a display apparatus, and fig. 8 is a structural diagram of a display apparatus 200 according to an embodiment of the present invention, where the display apparatus 200 includes the display panel 100 and the camera 201 in any of the embodiments; the orthographic projection of the camera 201 on the light emitting surface is located in the first display area AA 1. It should be noted that, in the embodiment of the display device 200 provided in the present application, reference may be made to the above-mentioned embodiment of the display module, and repeated descriptions are omitted. The display device provided by the application can be: any product or component with practical functions such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
In summary, the display panel and the display device provided by the invention at least achieve the following beneficial effects:
in the display panel and the display device provided by the invention, the pixel density of the first display area is smaller than that of the second display area, so that the transmittance of the first display area is favorably ensured. Particularly, the first display area comprises at least two oppositely arranged edge pixel groups, the edge pixel groups are adjacent to the second display area, sub-pixels in the two oppositely arranged edge pixel groups are in one-to-one correspondence, and the two sub-pixels in the one-to-one correspondence are symmetrically arranged along the first symmetry axis; that is to say, at the border department that second display area and first display area are adjacent, the sub-pixel in two borders of relative setting is the symmetry setting, and the quantity and the characteristics of arranging of sub-pixel are the same completely, thereby make two border pixel groups of relative setting send luminance more closely when luminous, be favorable to reducing the marginal area sub-pixel and distribute the uneven problem that leads to the border to be obvious, consequently be favorable to realizing the smooth transition on border between first display area and the second display area, promote display panel and display device's display effect.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present 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 (12)
1. A display panel comprising a display area and a non-display area, the display area comprising a first display area and a second display area at least partially surrounding the first display area, the display area comprising a plurality of sub-pixels, the first display area having a pixel density less than the second display area;
in the second display area, the sub-pixels are arranged along a first direction to form a plurality of pixel columns, the sub-pixels are arranged along a second direction to form a plurality of pixel rows, and the first direction is vertical to the second direction;
the first display area comprises at least two edge pixel groups which are oppositely arranged, and each edge pixel group is adjacent to the second display area and comprises a plurality of sub-pixels respectively; the sub-pixels in the two edge pixel groups which are arranged oppositely correspond to each other one by one, the two sub-pixels which correspond to each other one by one are symmetrically arranged along a first symmetry axis, the two sub-pixels which correspond to each other one by one have the same color, and the extending direction of the first symmetry axis is the first direction or the second direction.
2. The display panel according to claim 1, wherein in the first display region, the sub-pixels form a plurality of first pixel groups and a plurality of second pixel groups, the sub-pixels in each of the first pixel groups are arranged in a third direction, the sub-pixels in each of the second pixel groups are arranged in a fourth direction, the third direction and the fourth direction intersect, and the third direction and the fourth direction both intersect with the first direction and the second direction;
two adjacent first pixel groups and two adjacent second pixel groups are crossed to form a parallelogram structure.
3. The display panel according to claim 1, wherein the sub-pixels are uniformly arranged in the second display region; the second display area comprises a first sub-area, and the area of the first sub-area is equal to that of the first display area;
the sub-pixels comprise a first color sub-pixel, a second color sub-pixel and a third color sub-pixel; the total number of the first color sub-pixels contained in the first display area is N r The total number of the first color sub-pixels included in the first sub-area is N R (ii) a The total number of the second color sub-pixels contained in the first display area is S g The total number of the second color sub-pixels included in the first sub-area is S G (ii) a The total number of the third color sub-pixels contained in the first display area is P b The total number of the third color sub-pixels included in the first sub-area is P B (ii) a Wherein N is r ＜N R ，S g ＜S G ，P b ＜P B 。
4. The display panel according to claim 3, wherein the pixel density of the first display region is M, and the pixel density of the second display region is M, wherein M is k 1M, and wherein 1/3 ≦ k1 ≦ 3/4.
5. The display panel according to claim 3, wherein (N) r +S g +P b )＝k2*(N R +S G +P B ) Wherein, k2 is not less than 1/3 but not more than 2/3.
6. The display panel according to claim 3, wherein in the first display region, N is r ＜S g And/or N r ＜P b When N is present r ＜S g When the display panel is in a normal projection state, the total area of the first color sub-pixel in the normal projection state on the light-emitting surface of the display panel is larger than the total area of the second color sub-pixel in the normal projection state on the light-emitting surface; when N is present r ＜P b And when the first color sub-pixel is in the normal projection state, the total area of the first color sub-pixel in the normal projection state of the light-emitting surface of the display panel is larger than the total area of the third color sub-pixel in the normal projection state of the light-emitting surface of the third color sub-pixel.
7. The display panel according to claim 6, wherein in the first display region, when N is r ＜S g When the light source is used, the area of the orthographic projection of any first color sub-pixel on the light emitting surface is larger than the area of any second color sub-pixel on the light emitting surface; when N is present r ＜P b And when the light source is used, the area of the orthographic projection of any first color sub-pixel on the light emergent surface is larger than the area of any third color sub-pixel on the light emergent surface.
8. The display panel according to claim 3, wherein the total number of any one of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel in the first display region is 1/3 of the total number of same color sub-pixels in the first sub-region, and the total number of any one of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel in the first display region is 2/3 of the total number of same color sub-pixels in the first sub-region.
9. According to the claimsThe display panel according to claim 8, wherein N is r ＝2*N R /3，S g ＝2*S G /3，P b ＝P B A/3; or, N r ＝N R /3，S g ＝2*S G /3，P b ＝2*P B 3, performing the following steps; or, N r ＝2*N R /3，S g ＝S G /3，P b ＝2*P B /3。
10. The display panel of claim 8, wherein N is r ＝2*N R /3，S g ＝S G /3，P b ＝P B A/3; or, N r ＝N R /3，S g ＝2*S G /3，P b ＝P B A/3; or, N r ＝N R /3，S g ＝S G /3，P b ＝2*P B /3。
11. The display panel according to claim 3, wherein in the first display region, the orthogonal projection areas of the sub-pixels with the same color on the light emitting surface of the display panel are equal; in the second display area, the orthographic projection areas of the sub-pixels with the same color on the light emitting surface are equal;
in the same color sub-pixel: the area of the orthographic projection of the sub-pixels positioned in the first display area on the light emergent surface is larger than the area of the orthographic projection of the sub-pixels positioned in the second display area on the light emergent surface.
12. A display device comprising the display panel according to any one of claims 1 to 11 and a camera; the orthographic projection of the camera on the light emitting surface of the display panel is located in the first display area.
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