Display panel and driving method thereof, and display device
By setting an occlusion on the edge pixels of the special display panel, the display brightness is reduced, and the problem of edge jagging of the special display panel is solved, achieving a smoother display edge effect.
Patent Information
- Application Number
- CN202310113466.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-02-14
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2043-02-14
AI Technical Summary
Due to the regular pixel shape, the special-shaped display panel is difficult to present smooth arcs or diagonal edges, resulting in jagged edges in the display area, affecting the display effect.
A first occlusion portion is provided on the upper side of the display light emitting diode of the edge pixel, and the occlusion portion is used to block the light emitting region, thereby reducing the display brightness of the edge pixel, and thus weakening the boundary between the edge and the occlusion region.
By reducing the brightness of edge pixels, the jagged sense of the junction between the display area and the occlusion area is effectively weakened, so that the junction tends to smooth, such as showing smooth arcs or slashes to display edges.
Smart Images

Figure CN116052551B_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to the field of display technology, and in particular to a display panel and a driving method thereof, and a display device. [Background technology]
[0002] Compared with conventional display panels, special-shaped display panels are widely used in various display fields due to their diverse appearance designs. However, since the shape of pixels in display panels is mostly rectangular or other relatively regular shapes, it is difficult to use the pixels at the edge of the display area to present the expected smooth arc edge or smooth oblique edge, so that the pattern at the edge of the display area appears jagged, affecting the display effect. [Summary of the invention]
[0003] In view of this, an embodiment of the present invention provides a display panel and a driving method thereof, and a display device, so as to improve the edge jagged problem of a special-shaped display panel.
[0004] In one aspect, an embodiment of the present invention provides a display panel, including:
[0005] A display area and a shielding area adjacent to the display area;
[0006] A plurality of pixels located in the display area, the plurality of pixels comprising regular pixels and edge pixels, the edge pixels being located between the regular pixels and the shielding area, and the boundary between the edge pixels and the shielding area being in a step shape;
[0007] a first shielding portion, the first shielding portion being located at a side of the edge pixel facing a light emitting surface of the display panel;
[0008] The pixel includes a display light emitting diode, and in a direction perpendicular to the plane where the display panel is located, the first shielding portion overlaps with the display light emitting diode in the edge pixel.
[0009] On the other hand, an embodiment of the present invention provides a method for driving a display panel,
[0010] Display panel, including:
[0011] According to the mapping relationship between gray scale and current, driving current is provided to the edge pixel and the regular pixel respectively to drive the edge pixel and the regular pixel to emit light.
[0012] In yet another aspect, an embodiment of the present invention provides a display device, comprising the above-mentioned display panel.
[0013] One of the above technical solutions has the following beneficial effects:
[0014] In the embodiment of the present invention, by providing a first shielding portion on the upper side of the display LED in the edge pixel, the first shielding portion can be used to shield the light-emitting area of the display LED in the edge pixel, so that a part of the light emitted by this part of the display LED cannot be emitted from the display panel, thereby reducing the display brightness of the edge pixel. In this way, the brightness of the edge pixel that can be visually perceived by the human eye will be reduced, thereby effectively weakening the boundary between the edge of the edge pixel and the shielding area, thereby weakening the jagged feeling of the junction between the display area and the shielding area, so that the junction tends to present a smooth special-shaped display edge, such as a smooth arc display edge or a diagonal display edge.
Brief Description of the Drawings
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 A top view of a display panel provided by an embodiment of the present invention;
[0017] Figure 2 Another top view of the display panel provided by the embodiment of the present invention;
[0018] Figure 3 A partial schematic diagram of a display panel provided by an embodiment of the present invention;
[0019] Figure 4 A schematic diagram of an overlap between an edge pixel and a first shielding portion provided by an embodiment of the present invention;
[0020] Figure 5 A partial cross-sectional view of a display panel provided by an embodiment of the present invention;
[0021] Figure 6 Another partial cross-sectional view of a display panel provided by an embodiment of the present invention;
[0022] Figure 7 A process flow chart of the first shielding portion, the light-transmitting filling portion and the display light-emitting diode provided in an embodiment of the present invention;
[0023] Figure 8 Another partial cross-sectional view of a display panel provided by an embodiment of the present invention;
[0024] Fig. 9 Another partial cross-sectional view of a display panel provided by an embodiment of the present invention;
[0025] Fig.10 Another schematic diagram of the overlap between the edge pixel and the first shielding portion provided by the embodiment of the present invention;
[0026] Fig.11 A schematic diagram of another overlap between the edge pixel and the first shielding portion provided by an embodiment of the present invention;
[0027] Fig.12 A schematic diagram of another overlap between edge pixels and the first shielding portion provided by an embodiment of the present invention;
[0028] Fig.13 A schematic diagram of another overlap between edge pixels and the first shielding portion provided by an embodiment of the present invention;
[0029] Fig.14 A schematic diagram of an overlap between an edge pixel and a first blocking portion and a second blocking portion provided by an embodiment of the present invention;
[0030] Fig.15 Another schematic diagram of the overlap between the edge pixel and the first shielding portion and the second shielding portion provided by the embodiment of the present invention;
[0031] Fig.16 A schematic diagram of another overlap between edge pixels, the first blocking portion, and the second blocking portion provided by an embodiment of the present invention;
[0032] Fig.17 A schematic diagram of another overlap between edge pixels, the first blocking portion, and the second blocking portion provided by an embodiment of the present invention;
[0033] Fig.18 Another partial schematic diagram of a display panel provided by an embodiment of the present invention;
[0034] Fig.19 Another partial schematic diagram of a display panel provided by an embodiment of the present invention;
[0035] Fig. 20 Another partial schematic diagram of a display panel provided by an embodiment of the present invention;
[0036] Fig.21 Another partial schematic diagram of a display panel provided by an embodiment of the present invention;
[0037] Fig. 22 A schematic diagram of a mapping relationship between regular pixels and edge pixels provided by an embodiment of the present invention;
[0038] Fig.23 Another embodiment of the present invention provides a mapping relationship between regular pixels and edge pixels.
[0039] A schematic diagram;
[0040] Fig.24 Another schematic diagram of the mapping relationship between regular pixels and edge pixels provided by an embodiment of the present invention;
[0041] Fig.25 A schematic diagram of the structure of a display device provided by an embodiment of the present invention. [Specific implementation method]
[0042] In order to better understand the technical solution of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0043] It should be clear that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0044] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.
[0045] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0046] An embodiment of the present invention provides a display panel, which is a special-shaped display panel, for example, a display panel in the shape of a rounded rectangle, a circle, a T-shape or a polygon, or a perforated display panel.
[0047] like Figure 1 and Figure 2 As shown, Figure 1 A top view of a display panel provided by an embodiment of the present invention, Figure 2 Another top view of a display panel provided by an embodiment of the present invention, the display panel includes a display area 1 and a shielding area 2 adjacent to the display area 1. It can be understood that a black matrix 3 is usually provided in the display panel to shield the non-luminous area, and the shielding area 2 may refer to the area covered by the black matrix 3 in the frame. Figure 1 , the shielding area 2 can surround the display area 1, or, see Figure 2 When the display panel has a light-transmitting hole 4 , the blocking area 2 may surround the light-transmitting hole 4 , and the display area 1 may surround the blocking area 2 .
[0048] like Figure 3 to Figure 5 As shown, Figure 3 A partial schematic diagram of a display panel provided by an embodiment of the present invention, Figure 4 A schematic diagram of an overlap between the edge pixel 7 and the first shielding portion 8 provided in an embodiment of the present invention, Figure 5 A partial cross-sectional view of a display panel provided in an embodiment of the present invention, wherein the display panel further comprises a plurality of pixels 5 located in a display area 1, wherein the plurality of pixels 5 comprise regular pixels 6 and edge pixels 7, wherein the edge pixels 7 are located between the regular pixels 6 and the shielding area 2, and the boundary between the edge pixels 7 and the shielding area 2 is stepped. The display panel further comprises a first shielding portion 8, wherein the first shielding portion 8 is located on the side of the edge pixels 7 facing the light emitting surface of the display panel.
[0049] The pixel 5 includes a display light emitting diode 9 , and in a direction perpendicular to the plane where the display panel is located, the first shielding portion 8 overlaps with the display light emitting diode 9 in the edge pixel 7 .
[0050] The display light emitting diode 9 in the embodiment of the present invention can be a sub-millimeter light emitting diode (Mini Light Emitting Diode, Mini-LED) or a micron light emitting diode (Micro Light Emitting Diode, Micro-LED). The accompanying drawings of the embodiment of the present invention are illustrated by taking the pixel 5 as an example including three display light emitting diodes 9, and the three display light emitting diodes 9 can emit red light, green light and blue light respectively, or can all emit blue light, and further use the color conversion layer to realize color conversion.
[0051] It should be noted that the embodiments of the present invention subsequently mention the luminous brightness and display brightness of the display light-emitting diode 9, wherein the luminous brightness refers to the brightness corresponding to the driving current, and the luminous brightness is related to the driving current, and has nothing to do with whether the display light-emitting diode 9 is blocked by the first blocking portion 8. The display brightness refers to the brightness determined by the driving current and the blocking area of the display light-emitting diode 9. For example, when the same driving current is provided to the display light-emitting diode 9 in the edge pixel 7 and the regular pixel 6, the corresponding luminous brightness of the two is consistent, but because the display light-emitting diode 9 in the edge pixel 7 is blocked by the first blocking portion 8, the actual light-emitting area of the display light-emitting diode 9 in the edge pixel 7 is reduced, and thus the display brightness of the display light-emitting diode 9 in the edge pixel 7 is less than the display brightness of the display light-emitting diode 9 in the regular pixel 6. Alternatively, when the driving current provided to the display LED 9 in the edge pixel 7 is smaller than the driving current provided to the display LED 9 in the conventional pixel 6, the luminous brightness of the display LED 9 in the edge pixel 7 is smaller than the luminous brightness of the display LED 9 in the conventional pixel 6. In addition, the display LED 9 in the edge pixel 7 is blocked by the first blocking portion 8, so the display brightness of the display LED 9 in the edge pixel 7 is even smaller.
[0052] In the embodiment of the present invention, by providing the first shielding portion 8 on the upper side of the display light emitting diode 9 in the edge pixel 7, the first shielding portion 8 can be used to shield the light emitting area of the display light emitting diode 9 in the edge pixel 7, so that a part of the light emitted by this part of the display light emitting diode 9 cannot be emitted from the display panel, thereby reducing the display brightness of the edge pixel 7. In this way, the brightness of the edge pixel 7 that can be visually perceived by the human eye will be reduced, thereby effectively weakening the boundary between the edge of the edge pixel 7 and the shielding area 2, thereby weakening the jagged feeling of the junction between the display area 1 and the shielding area 2, so that the junction tends to present a smooth special-shaped display edge, such as a smooth arc display edge or a diagonal display edge.
[0053] In addition, after the first shielding portion 8 is set above the edge pixel 7, in one setting mode, the display brightness of the edge pixel 7 can be adjusted only by using the first shielding portion 8, and the driving current corresponding to the edge pixel 7 is no longer adjusted. At this time, the edge pixel 7 and the conventional pixel 6 can share a set of grayscale-current mapping relationships, reducing the design difficulty. Alternatively, in another setting mode, the display brightness of the edge pixel 7 can also be adjusted by using the first shielding portion 8 and the driving current corresponding to the edge pixel 7 at the same time. For example, when the edge pixel 7 and the conventional pixel 6 need to display the same grayscale value, the current corresponding to the edge pixel 7 at the grayscale value can be designed to be smaller, so as to reduce the display brightness of the edge pixel 7 to a greater extent. However, since the first shielding portion can already weaken a part of the display brightness, the adjustment amplitude of the driving current of the edge pixel 7 does not need to be too large.
[0054] In one possible implementation, see again Figure 5 The display LED 9 includes an upper surface 10 close to the light emitting surface of the display panel, and the first shielding portion 8 is located on the upper surface 10 of the display LED 9 in the edge pixel 7. In this way, the first shielding portion 8 is in direct contact with the display LED 9 in the edge pixel 7, the alignment accuracy of the two is higher, and the first shielding portion 8 can also achieve a better shielding effect.
[0055] Furthermore, if Figure 6 As shown, Figure 6 This is another partial cross-sectional view of the display panel provided in an embodiment of the present invention, wherein the display panel further includes a light-transmitting filling portion 11, which is located on the upper surface 10 of the display light-emitting diode 9 in the edge pixel 7, and, in a direction perpendicular to the plane where the display panel is located, the light-transmitting filling portion 11 overlaps with a portion of the display light-emitting diode 9 in the edge pixel 7 that does not overlap with the first blocking portion 8.
[0056] When the first shielding portion 8 is located on the upper surface 10 of the display light emitting diode 9, in the embodiment of the present invention, the first shielding portion 8 can be formed together with the display light emitting diode 9 on the growth substrate, and then the first shielding portion 8 is transferred to the first substrate 12 together with the display light emitting diode 9. In this way, it is avoided that the first shielding portion 8 is formed on the upper surface 10 of the display light emitting diode 9 after the display light emitting diode 9 is transferred to the first substrate 12, and further, it is avoided that the process (such as etching process) when forming the first shielding portion 8 has a bad influence on the device performance of the display light emitting diode 9.
[0057] In the embodiment of the present invention, the light-transmitting filling part 11 is provided, and the Figure 6 and Figure 7 , Figure 7 A process flow chart of the first shielding portion 8, the light-transmitting filling portion 11 and the display LED 9 provided in an embodiment of the present invention. When forming the display LED 9, the light-transmitting filling portion 11 and the first shielding portion 8 can be used to jointly support the film layer of the display LED 9 to prevent the film layer from sinking downward, so that the upper surface 10 of the display LED 9 in the edge pixel 7 and the display pixel 5 can be flat, thereby avoiding performance differences between the display LED 9 in the edge pixel 7 and the display pixel 5.
[0058] In a possible implementation, Figure 8 As shown, Figure 8 Another partial cross-sectional view of a display panel provided by an embodiment of the present invention, the display panel includes a first substrate 12 and a second substrate 13 opposite to each other, the pixel 5 is located on the first substrate 12, the second substrate 13 includes a black matrix 3, and the pixel 5 is located on the first substrate 12. Figure 1 and Figure 2 , part of the black matrix 3 is located in the shielding area 2. The first shielding portion 8 is located on the second substrate 13, and the first shielding portion 8 and the black matrix 3 are formed by the same patterning process.
[0059] In this arrangement, the first shielding portion 8 is formed on the second substrate 13. After the display light emitting diodes 9 are transferred to the first substrate 12, the first shielding portion 8 can shield the display light emitting diodes 9 in the edge pixels 7 only by aligning the second substrate 13 with the first substrate 12. The first shielding portion 8 will not affect the original manufacturing process of the display light emitting diodes 9. Moreover, the first shielding portion 8 is formed synchronously with the black matrix 3, which can also save process flow and reduce process costs.
[0060] In a possible implementation, Fig. 9 As shown, Fig. 9 This is another partial cross-sectional view of the display panel provided by the embodiment of the present invention. The display panel further includes a packaging layer 40 covering the display light emitting diode 9 . The first shielding portion 8 is located on a side of the packaging layer 40 facing away from the display light emitting diode 9 .
[0061] When the first shielding portion 8 is located on one side of the encapsulation layer 40, after the display LED 9 is transferred to the first substrate 12, the encapsulation layer 40 covering the display LED 9 is first formed to protect the display LED 9 from being corroded by water and oxygen, and then the first shielding portion 8 is formed on the encapsulation layer 40. This method not only does not affect the original manufacturing process of the display LED 9, but also the encapsulation layer 40 will be spaced between the first shielding portion 8 and the display LED 9, which can protect the display LED 9 from being affected by the etching process of the first shielding portion 8, and the reliability of the display LED 9 is higher.
[0062] In addition, it should be noted that see Figure 5 , Figure 6 and Figure 8 An insulating layer 14 and a connecting wire 15 are also provided on the first substrate 12, and the display light-emitting diode 9 includes a main body 16, a positive electrode 17 and a negative electrode 18. The positive electrode 17 can be electrically connected to the driving circuit through the connecting wire 15, and the negative electrode 18 can be electrically connected to the negative power signal line through the connecting wire 15.
[0063] In a possible implementation, Figure 10 to Figure 13 As shown, Fig.10 Another schematic diagram of the overlap between the edge pixel 7 and the first shielding portion 8 provided in an embodiment of the present invention is shown in FIG. Fig.11 This is another overlapping schematic diagram of the edge pixel 7 and the first shielding portion 8 provided in an embodiment of the present invention. Fig.12 This is another overlapping schematic diagram of the edge pixel 7 and the first shielding portion 8 provided in an embodiment of the present invention. Fig.13 Another overlapping schematic diagram of the edge pixel 7 and the first blocking portion 8 provided in an embodiment of the present invention, the display LED 9 includes a first area 19 and a second area 20, and in a direction perpendicular to the plane where the display panel is located, the first blocking portion 8 overlaps with the first area 19 of the display LED 9 in each edge pixel 7, so that the blocking of the display LED 9 by the first blocking portion 8 is regular, and the blocking position of the display LED 9 in the edge pixel 7 by the first blocking portion 8 is the same, so that the display areas of the display LEDs 9 of different colors are concentrated, which can improve the color mixing effect of the multiple display LEDs 9 in each edge pixel 7.
[0064] Further, see Fig.12 The display LED 9 includes two first areas 19 and one second area 20. The two first areas 19 are respectively located on both sides of the second area 20. In the direction perpendicular to the plane where the display panel is located, the second area 20 covers the center of the display LED 9. In this way, the actual light-emitting area of the display LED 9 in the edge pixel 7 exposed by the first shielding portion 8 is the middle area of the display LED 9. The center of the actual light-emitting area is close to the original light-emitting center, so that the shielded display LED 9 can achieve a better display effect.
[0065] Alternatively, see Fig.13 , the first area 19 surrounds the second area 20. In this way, the actual light-emitting area of the display LED 9 in the edge pixel 7 exposed by the first shielding portion 8 is also the middle area of the display LED 9, and the center of the actual light-emitting area is close to the original light-emitting center, which can also make the display LED 9 after being shielded achieve a better display effect.
[0066] In a possible implementation, Figure 14 to Figure 16 As shown, Fig.14 A schematic diagram of an overlap between the edge pixel 7, the first blocking portion 8, and the second blocking portion 22 provided in an embodiment of the present invention, Fig.15 Another schematic diagram of the overlap between the edge pixel 7 and the first shielding portion 8 and the second shielding portion 22 provided in an embodiment of the present invention is shown in FIG. Fig.16Another overlapping schematic diagram of the edge pixel 7 and the first shielding portion 8 and the second shielding portion 22 provided in the embodiment of the present invention, the pixel 5 also includes a spare light emitting diode 21, the display light emitting diode 9 corresponds to at least one spare light emitting diode 21, and the corresponding display light emitting diode 9 and spare light emitting diode 21 are respectively represented by reference numerals 9_i and 21_i in the accompanying drawings of the embodiment of the present invention. In one configuration, the positive electrode of the display light emitting diode 9 and the positive electrode of the corresponding spare light emitting diode 21 are electrically connected to the same driving circuit through different switches. When the display light emitting diode 9 is damaged, the light emitted by the corresponding spare light emitting diode 21 can be used for display.
[0067] The display panel also includes a second shielding portion 22. The second shielding portion 22 is located on the side of the light emitting surface of the edge pixel 7 facing the display panel. In the direction perpendicular to the plane where the display panel is located, the second shielding portion 22 overlaps with the spare light emitting diode 21 in the edge pixel 7, so that the second shielding portion 22 is used to shield the light emitting area of the spare light emitting diode 21 in the edge pixel 7, reducing the actual light emitting area of the spare light emitting diode 21, so that the actual light emitting area of the spare light emitting diode 21 can be close to the actual light emitting area of the display light emitting diode 9 in the corresponding edge pixel 7, and the display brightness of the two under the same driving current tends to be consistent. When the display light emitting diode 9 is damaged, the spare light emitting diode 21 can present the brightness that the corresponding display light emitting diode 9 originally needs to present, so that the brightness of the edge pixel 7 where it is located is lower.
[0068] In one possible implementation, see again Figure 14 to Figure 16 , for the first shielding portion 8 and the second shielding portion 22 overlapping the corresponding display LED 9 and the backup LED 21, in the direction perpendicular to the plane where the display panel is located, the pattern of the orthographic projection of the first shielding portion 8 is the same as the pattern of the orthographic projection of the second shielding portion 22. In this way, the shielding conditions of the display LED 9 and the corresponding backup LED 21 are the same, so when the display LED 9 and the backup LED 21 receive the same driving current, the display brightness presented by the display LED 9 and the backup LED 21 is consistent, so that the brightness of the entire edge pixel 7 is better controlled.
[0069] In a possible implementation, Fig.17 As shown, Fig.17Another overlapping schematic diagram of the edge pixel 7 and the first blocking portion 8 and the second blocking portion 22 provided in an embodiment of the present invention, the display light-emitting diode 9 includes the first area 19 and the second area 20, the spare light-emitting diode 21 includes the third area 23 and the fourth area 24, for the adjacent display light-emitting diode 9 and the spare light-emitting diode 21 in the same pixel 5, the first near area 25 of the display light-emitting diode 9 is close to the second near area 26 of the spare light-emitting diode 21, wherein the first near area 25 is the first area 19 or the second area 20 of the display light-emitting diode 9, and the second near area 26 is the third area 23 or the fourth area 24 of the spare light-emitting diode 21.
[0070] In a direction perpendicular to the plane of the display panel, the first shielding portion 8 does not overlap with a first near region 25 of the display LED 9 in the edge pixel 7 , and the second shielding portion 22 does not overlap with a second near region 26 of the standby LED 21 in the edge pixel 7 .
[0071] In this arrangement, the unblocked area of the display LED 9 is adjacent to the unblocked area of the backup LED 21, so that the actual light emitting center O1 of the backup LED 21 will not deviate too much from the actual light emitting center O2 of the display LED 9. When the display LED 9 is damaged and the backup LED 21 is used to emit light, the overall color mixing effect of the edge pixel 7 will not deviate too much.
[0072] In a possible implementation, Fig.18 As shown, Fig.18 Another partial schematic diagram of a display panel provided by an embodiment of the present invention, the edge pixel 7 includes a first edge pixel 27 and a second edge pixel 28, and the second edge pixel 28 is closer to the shielding area 2 than the first edge pixel 27. Among them, the area of the display light emitting diode 9 blocked by the first shielding portion 8 in the first edge pixel 27 is smaller than the area of the display light emitting diode 9 blocked by the first shielding portion 8 in the second edge pixel 28.
[0073] On the one hand, the second edge pixel 28 is closer to the occlusion area 2. By blocking a larger area of the display LED 9 in the second edge pixel 28, the display brightness of the first edge pixel 27 can be reduced to a greater extent, and the jagged feeling at the junction of the display area 1 and the occlusion area 2 can be further weakened; on the other hand, the first edge pixel 27 is closer to the regular pixel 6. By blocking a smaller area of the display LED 9 in the first edge pixel 27, the difference in display brightness between the first edge pixel 27 and the display brightness of the first edge pixel 27 can be reduced, thereby weakening the display difference between the edge pixel 7 and the regular pixel 6, and blurring the junction between the edge pixel 7 and the regular pixel 6.
[0074] In a possible implementation, Fig.19As shown, Fig.19 Here is another partial schematic diagram of the display panel provided in an embodiment of the present invention. In the direction perpendicular to the plane of the display panel, the area where the display LED 9 in the first edge pixel 27 is blocked by the first blocking portion 8 surrounds the area not blocked by the first blocking portion 8, and the area where the display LED 9 in the second edge pixel 28 is blocked by the first blocking portion 8 and the area not blocked by the first blocking portion 8 are arranged along the first direction x.
[0075] The first blocking portion 8 of the above-mentioned setting method has made a differentiated design for the blocking method of the display LED 9 in the first edge pixel 27 and the second edge pixel 28: for the first edge pixel 27 that is closer to the conventional pixel 6, the blocking area of the display LED 9 in the first edge pixel 27 surrounds the unblocked area, and the actual light emitting area of the display LED 9 covers the center of the display LED 9. The central area of the same LED has a higher brightness than the edge area, and the brightness difference between the central areas of different LEDs is also smaller than the brightness difference between the edge areas. Therefore, the light emitting effect of the display LED 9 in the first edge pixel 27 can be improved, and the visual display difference between the first edge pixel 27 and the conventional pixel 6 can be weakened. As for the second edge pixel 28 closer to the occlusion area 2, as mentioned above, the occlusion area of the light-emitting diode 9 displayed in the second edge pixel 28 will be larger. If the occlusion method of the first edge pixel 27 is also adopted for the second edge pixel 28, the etching difficulty of the first occlusion part 8 will be greater and the accuracy will not be easy to control. Therefore, by making the occlusion area of the light-emitting diode 9 displayed in the second edge pixel 28 located on one side or both sides of the unoccluded area, the difficulty of etching the first occlusion part 8 on the second edge pixel 28 can be reduced.
[0076] Further, see Fig.19 In the second edge pixel 28, the size of the display light emitting diode 9 in the first direction x is greater than the size in the second direction y, and the second direction y intersects with the first direction x.
[0077] Exemplarily, when the light emitting diode 9 is displayed as a horizontally long strip, the blocked area and the unblocked area in the light emitting diode 9 displayed in the second edge pixel 28 are arranged horizontally, and when the light emitting diode 9 is displayed as a vertically long strip, the blocked area and the unblocked area in the light emitting diode 9 displayed in the second edge pixel 28 are arranged vertically. In this way, the size of the above-mentioned blocked area in the first direction x or the second direction y will not be too small, which can further reduce the process difficulty of the first blocking portion 8.
[0078] In a possible implementation, Fig. 20 As shown, Fig. 20Another partial schematic diagram of a display panel provided by an embodiment of the present invention, the regular pixel 6 includes a first regular pixel 29, and a plurality of edge pixels 7 are included between the first regular pixel 29 and the occlusion area 2. For the plurality of edge pixels 7 located between the first regular pixel 29 and the occlusion area 2, along the direction from the first regular pixel 29 to the occlusion area 2, the area of the display light emitting diodes 9 in the plurality of edge pixels 7 blocked by the first blocking portion 8 increases gradually, so that the display brightness of the plurality of edge pixels 7 decreases gradually in this direction, and a uniform brightness change from the regular pixel 6 to the occlusion area 2 is achieved.
[0079] Further, see again Fig. 20 For the multiple edge pixels 7 located between the first regular pixel 29 and the occlusion area 2, the area where the display light emitting diode 9 in the edge pixel 7 is blocked by the first blocking portion 8 and the area not blocked by the first blocking portion 8 are arranged along the third direction z, and, along the direction from the first regular pixel 29 to the occlusion area 2, the size of the first blocking portion 8 overlapping with the multiple edge pixels 7 in the third direction z increases gradually, and the third direction z intersects with the arrangement direction of the multiple edge pixels 7.
[0080] When the first regular pixel 29 and the occluding area 2 include multiple edge pixels 7, the boundary length between the display area 1 and the occluding area 2 at this position is relatively large, and the step effect is more obvious. Based on the above setting method, the first occluding part 8 there can be used to convert the large step into multiple small steps to further effectively weaken the jagged feeling.
[0081] In a possible implementation, Fig.21 As shown, Fig.21 This is another partial schematic diagram of a display panel provided by an embodiment of the present invention, wherein the display panel has a virtual irregular display edge 30, a portion of the edge pixel 7 is located on a side of the virtual irregular display edge 30 close to the regular pixel 6, and another portion is located on a side of the virtual irregular display edge 30 away from the regular pixel 6. In the edge pixel 7, the area of the display light emitting diode 9 that is not blocked by the first blocking portion 8 is positively correlated with the area of the portion of the edge pixel 7 that is located on a side of the virtual irregular display edge 30 close to the regular pixel 6.
[0082] Among them, the above-mentioned virtual special-shaped display edge 30 can be understood as the arc display edge or oblique display edge that the display area is expected to have under ideal conditions, and the display area inside the virtual special-shaped edge (the side close to the regular pixel 6) is the expected display area under ideal conditions.
[0083] For an edge pixel 7, the larger the area of the edge pixel 7 located inside the virtual irregular display edge 30, the higher the proportion of the light-emitting area of the edge pixel 7 located in the expected display area, and the edge pixel 7 will have more brightness to contribute to the expected display area, so as to make the expected display area present an ideal irregular image. Then, the edge pixel 7 will have a greater impact on the display effect of the expected display area. In this case, if the first shielding portion 8 is used to shield the display light-emitting diode 9 in the edge pixel 7 to a large extent, the display brightness of the edge pixel 7 will differ too much from the expected brightness, and the brightness contributed by the edge pixel 7 to the expected display area will be very low, resulting in poor display effect of the expected display area at the virtual irregular display edge 30.
[0084] To this end, the embodiment of the present invention sets the area of the edge pixel 7 where the light emitting diode 9 is not blocked by the first blocking portion 8 to be positively correlated with the area of the edge pixel 7 located inside the virtual irregular display edge 30. If the area of the edge pixel 7 located in the expected display area is larger, then the area of the edge pixel 7 where the light emitting diode 9 is exposed by the first blocking portion 8 is also set larger, so that the edge pixel 7 can contribute more brightness to the expected display area. If the area of the edge pixel 7 located in the expected display area is smaller, then the area of the edge pixel 7 where the light emitting diode 9 is exposed by the first blocking portion 8 is set smaller, so as to make more use of the edge pixels 7 with lower brightness to reduce the jagged feeling.
[0085] In a possible implementation, combining Fig.21 The display panel has a virtual irregular display edge 30 , a portion of the edge pixel 7 is located on a side of the virtual irregular display edge 30 close to the regular pixel 6 , and the other portion is located on a side of the virtual irregular display edge 30 far from the regular pixel 6 .
[0086] For a single display LED 9 in the edge pixel 7, the area of the display LED 9 is S11, and the area of the display LED 9 not blocked by the first blocking portion 8 is S12; for multiple display LEDs 9 in the edge pixel 7, the total area of the multiple display LEDs 9 is S21, and the total area of the multiple display LEDs 9 located on the side of the virtual special-shaped display edge 30 close to the regular pixel 6 is S22.
[0087] in, 0.9≤k≤1.1, and For example,
[0088] Combined with the above analysis, for an edge pixel 7, the higher the proportion of the total area S22 of the multiple display LEDs 9 in the edge pixel 7 located inside the virtual irregular display edge 30, the greater the impact of the edge pixel 7 on the display effect of the expected display area. Based on the above formula, it can be seen that in the edge pixel 7, the area S12 of a single display LED 9 that is not blocked by the first blocking portion 8 is positively correlated with the total area S22 of the multiple display LEDs 9 located inside the virtual irregular display edge 30, that is, the larger S22 is, the larger the actual light-emitting area of a single display LED 9 in the edge pixel 7 is, so that the edge pixel 7 has more brightness that can be contributed to the expected display area, and the smaller S22 is, the smaller the actual light-emitting area of a single display LED 9 in the edge pixel 7 is, so as to make more use of this part of the edge pixel 7 with lower brightness to weaken the jagged feeling.
[0089] Based on the same inventive concept, an embodiment of the present invention further provides a method for driving a display panel, and the method is used to drive the above-mentioned display panel. Figure 3 to Figure 5 The driving method includes: providing driving current to the edge pixel 7 and the regular pixel 6 respectively according to the mapping relationship between grayscale and current, so as to drive the edge pixel 7 and the regular pixel 6 to emit light.
[0090] It should be noted that, in the embodiment of the present invention, providing driving current to the edge pixel 7 and the regular pixel 6 refers to providing driving current to the light emitting diode in the edge pixel 7 and the light emitting diode in the regular pixel 6 .
[0091] Combined with the above analysis of the structure of the display panel, since the first shielding portion 8 can be used to shield the light-emitting area of the display light-emitting diode 9 in the edge pixel 7, when a driving current is provided to the edge pixel 7 to drive the edge pixel 7 to emit light, the display brightness of the edge pixel 7 will be lower than the light-emitting brightness corresponding to the driving current. Therefore, the display brightness of the edge pixel 7 that can be perceived by the human eye can be visually weakened, and the jagged feeling at the junction between the display area 1 and the shielding area 2 can be weakened, making the junction smoother.
[0092] In a feasible implementation, according to the grayscale-current mapping relationship, the process of providing driving current to the edge pixel 7 and the regular pixel 6 respectively includes: according to the same mapping relationship, providing driving current to the edge pixel 7 and the regular pixel 6 respectively. That is, when the edge pixel 7 and the regular pixel 6 need to display the same preset grayscale value, the driving current to the edge pixel 7 and the regular pixel 6 is the same.
[0093] The above method only uses the first blocking portion 8 to adjust the display brightness of the edge pixel 7, and does not differentiate the driving currents corresponding to the edge pixel 7 and the regular pixel 6. This method is relatively simple to adjust the display brightness of the edge pixel 7, and there is no need to construct different mapping relationships for the edge pixel 7 and the regular pixel 6 respectively.
[0094] In a possible implementation, Fig. 22 As shown, Fig. 22 A schematic diagram of a mapping relationship between regular pixels 6 and edge pixels 7 provided in an embodiment of the present invention, wherein the mapping relationship includes a first mapping relationship M1 corresponding to the regular pixels 6 and a second mapping relationship M2 corresponding to the edge pixels 7 .
[0095] According to the grayscale-current mapping relationship, the process of providing driving current to the edge pixel 7 and the regular pixel 6 respectively includes: providing driving current to the regular pixel 6 according to the first mapping relationship M1, and providing driving current to the edge pixel 7 according to the second mapping relationship M2; wherein, when the edge pixel 7 and the regular pixel 6 need to display the same preset grayscale value G1, the current Ia corresponding to the preset grayscale value G1 in the second mapping relationship M2 is smaller than the current Ib corresponding to the preset grayscale value G1 in the first mapping relationship M1.
[0096] In addition to using the first shielding portion 8 to adjust the display brightness of the edge pixel 7, the above method also makes a differentiated design for the driving current of the edge pixel 7 and the driving current of the conventional pixel 6, so as to synchronously use the driving current to adjust the display brightness of the edge pixel 7. For example, when it is necessary to adjust the display brightness of the edge pixel 7 to a very low level, if only the first shielding portion 8 is used for adjustment, the area of the opening where the display light emitting diode 9 in the edge pixel 7 is exposed by the first shielding portion 8 is very small, which may be lower than the limit value that can be prepared by the process capability, which will result in the display brightness of the edge pixel 7 being not precisely regulated, and the edge display effect of the special-shaped display panel is not smooth. By using the first shielding portion 8 and the driving current to jointly regulate the display brightness of the edge pixel 7, after the first shielding portion 8 is used to block a certain area of the display light emitting diode 9, the display brightness of the edge pixel 7 can be further regulated to be controlled to a lower level by the driving current. This regulation method can reduce the process requirements for the first shielding portion 8, and secondly, it helps to achieve a smaller display brightness regulation, so that the special-shaped display panel has a more delicate display effect.
[0097] In a possible implementation, Fig.23 As shown, Fig.23 Another schematic diagram of the mapping relationship between the conventional pixel 6 and the edge pixel 7 provided in an embodiment of the present invention, the edge pixel 7 includes a third edge pixel 41 and a fourth edge pixel 42, and the area of the fourth edge pixel 42 blocked by the first blocking portion 8 is smaller than the area of the third edge pixel 41 blocked by the first blocking portion 8.
[0098] The mapping relationships include a first mapping relationship M1 corresponding to the normal pixel 6 , a second A mapping relationship M21 corresponding to the third edge pixel 41 , and a second B mapping relationship M22 corresponding to the fourth edge pixel 42 .
[0099] According to the grayscale-current mapping relationship, the process of providing driving current to the edge pixel 7 and the regular pixel 6 respectively includes: providing driving current to the regular pixel 6 according to the first mapping relationship M1, providing driving current to the third edge pixel 41 according to the second A mapping relationship M21, and providing driving current to the fourth edge pixel 42 according to the second B mapping relationship M22. Wherein, when the third edge pixel 41, the fourth edge pixel 42 and the regular pixel 6 need to display the same preset grayscale value G1, and the brightness displayed by the third edge pixel 41 and the fourth edge pixel 42 are equal, the current Ia1 corresponding to the preset grayscale value G1 in the second A mapping relationship M21 is equal to the current Ib corresponding to the preset grayscale value G1 in the first mapping relationship M1, and the current Ia2 corresponding to the preset grayscale value G1 in the second B mapping relationship M22 is less than the current corresponding to the preset grayscale value G1 in the first mapping relationship M1.
[0100] For the third edge pixel 41, the above method only uses the first blocking portion 8 to adjust the display brightness of the third edge pixel 41, and does not differentiate the drive current of the third edge pixel 41 and the conventional pixel 6. At this time, the second A mapping relationship M21 and the first mapping relationship M1 corresponding to the third edge pixel 41 can be the same. For the fourth edge pixel 42, the above method uses the first blocking portion 8 and the drive current to adjust the display brightness of the third edge pixel 41 at the same time. Therefore, when the area blocked by the fourth edge pixel 42 is smaller than the area blocked by the third edge pixel 41, the current corresponding to the preset grayscale value G1 in the second B mapping relationship M22 can be designed to be smaller, so that the degree to which the display brightness of the fourth edge pixel 42 is jointly regulated by the first blocking portion 8 and the drive current is consistent with the degree to which the display brightness of the third edge pixel 41 is regulated only by the first blocking portion 8, thereby making the display brightness of the third edge pixel 41 and the fourth edge pixel 42 the same under the preset grayscale value G1.
[0101] In the above-mentioned setting, when the third edge pixel 41 and the fourth edge pixel 42 display the same brightness, the fourth edge pixel 42 is jointly regulated by the first blocking portion 8 and the driving current, while the third edge pixel 41 is regulated solely by the first blocking portion 8. In this way, the same mapping relationship can be constructed for the third edge pixel 41 and the conventional pixel 6, reducing the number of mapping relationships that need to be constructed for the edge pixel 7, thereby reducing the design difficulty and reducing the amount of data storage.
[0102] In a possible implementation, Fig.24 As shown, Fig.24 Another schematic diagram of the mapping relationship between the conventional pixel 6 and the edge pixel 7 provided in an embodiment of the present invention, the edge pixel 7 includes a fifth edge pixel 31 and a sixth edge pixel 32, the sixth edge pixel 32 is closer to the occlusion area 2 than the fifth edge pixel 31, and the area of the fifth edge pixel 31 blocked by the first occlusion portion 8 is equal to the area of the sixth edge pixel 32 blocked by the first occlusion portion 8.
[0103] The second mapping relationship M2 includes a second C mapping relationship M23 corresponding to the fifth edge pixel 31 and a second D mapping relationship M24 corresponding to the sixth edge pixel 32. When the fifth edge pixel 31 and the sixth edge pixel 32 need to display the same preset grayscale value G1, the current Ia4 corresponding to the preset grayscale value G1 in the second D mapping relationship M24 is less than the current Ia3 corresponding to the preset grayscale value G1 in the second C mapping relationship M23.
[0104] Combined with the above analysis, for the edge pixel 7 closer to the occlusion area 2, its display brightness is adjusted to a lower level to more effectively weaken the jagged edge. Compared with the fifth edge pixel 31, the sixth edge pixel 32 is closer to the occlusion area 2, so the display brightness of the sixth edge pixel 32 is adjusted to a lower level for better results. Based on this, in the above setting method, the occlusion area of the sixth edge pixel 32 is not directly set to be very large to achieve a lower display brightness, but the occlusion area of the sixth edge pixel 32 is set to be the same as that of the fifth edge pixel 31, and the driving current of the sixth edge pixel 32 is further adjusted to modulate its display brightness to a lower level. In this way, it can be avoided that the opening area of the sixth edge pixel 32 exposed by the first occlusion part 8 is too small, thereby reducing the requirements for the process difficulty of the first occlusion part 8, and further using the driving current to adjust the display brightness of the sixth edge pixel 32 can also adjust the display brightness more finely, which is conducive to the realization of a lower display brightness.
[0105] In a feasible embodiment, the area of the edge pixel 7 where the light-emitting diode 9 is blocked by the first blocking portion 8 is the first area. For at least part of the edge pixels 7, the current corresponding to the preset grayscale value G1 in the second mapping relationship M2 corresponding to the edge pixels 7 is positively correlated with the first area.
[0106] When the blocked area of the light-emitting diode 9 displayed in the edge pixel 7 is large, the luminous brightness of the edge pixel 7 can be increased by setting the current of the edge pixel 7 at the preset grayscale value G1 to be larger, thereby avoiding a large difference between the display brightness of the edge pixel 7 and the display brightness of the conventional pixel 6, and avoiding deviations in the displayed image.
[0107] Based on the same inventive concept, an embodiment of the present invention further provides a display device, such as Fig.25 As shown, Fig.25 1 is a schematic diagram of a structure of a display device provided in an embodiment of the present invention, and the display device includes the above-mentioned display panel 100. The specific structure of the display panel 100 has been described in detail in the above-mentioned embodiment, and will not be repeated here. Fig.25 The display device shown is for illustration only, and the display device may be any electronic device with a display function, such as a vehicle-mounted display screen, a smart watch, etc.
[0108] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A display panel, characterized in that: include: A display area and a shielding area adjacent to the display area; A plurality of pixels located in the display area, the plurality of pixels comprising regular pixels and edge pixels, the edge pixels being located between the regular pixels and the shielding area, and the boundary between the edge pixels and the shielding area being in a step shape; a first shielding portion, the first shielding portion being located at a side of the edge pixel facing a light emitting surface of the display panel; Wherein, the pixel includes a display light emitting diode, and in a direction perpendicular to the plane where the display panel is located, the first shielding portion overlaps with the display light emitting diode in the edge pixel; The pixel further includes a spare light emitting diode, and the display light emitting diode corresponds to at least one of the spare light emitting diodes; The display panel also includes a second shielding portion, which is located on a side of the edge pixel facing the light emitting surface of the display panel, and overlaps with the spare light emitting diode in the edge pixel in a direction perpendicular to the plane where the display panel is located.
2. The display panel according to claim 1, characterized in that: The display light emitting diode comprises an upper surface close to a light emitting surface of the display panel, and the first shielding portion is located on the upper surface of the display light emitting diode in the edge pixel.
3. The display panel according to claim 2, characterized in that: The display panel also includes a light-transmitting filling portion, which is located on the upper surface of the display light-emitting diode in the edge pixel, and, in a direction perpendicular to the plane where the display panel is located, the light-transmitting filling portion overlaps with a portion of the display light-emitting diode in the edge pixel that does not overlap with the first blocking portion.
4. The display panel according to claim 1, characterized in that: The display panel comprises a first substrate and a second substrate opposite to each other, the pixels are located on the first substrate, the second substrate comprises a black matrix, and part of the black matrix is located in the shielding area; The first shielding portion is located on the second substrate, and the first shielding portion and the black matrix are formed by adopting the same patterning process.
5. The display panel according to claim 1, characterized in that: The display panel further includes a packaging layer covering the display light emitting diode, and the first shielding portion is located on a side of the packaging layer facing away from the display light emitting diode.
6. The display panel according to claim 1, characterized in that: The display light emitting diode includes a first region and a second region. In a direction perpendicular to the plane where the display panel is located, the first shielding portion overlaps with the first region of the display light emitting diode in each of the edge pixels.
7. The display panel according to claim 6, characterized in that: The display LED includes two first areas and one second area, the two first areas are respectively located on both sides of the second area, and in a direction perpendicular to the plane where the display panel is located, the second area covers the center of the display LED.
8. The display panel according to claim 6, characterized in that: The first region surrounds the second region.
9. The display panel according to claim 1, characterized in that: For the first blocking portion and the second blocking portion overlapping the corresponding display LED and the backup LED, in a direction perpendicular to the plane where the display panel is located, a pattern of the orthographic projection of the first blocking portion is the same as a pattern of the orthographic projection of the second blocking portion.
10. The display panel according to claim 1, characterized in that: The display LED includes a first area and a second area, and the spare LED includes a third area and a fourth area. For the corresponding display LED and spare LED, the first near area of the display LED is close to the second near area of the spare LED, wherein the first near area is the first area or the second area of the display LED, and the second near area is the third area or the fourth area of the spare LED; In a direction perpendicular to the plane where the display panel is located, the first shielding portion does not overlap with the first near area of the display LED in the edge pixel, and the second shielding portion does not overlap with the second near area of the backup LED in the edge pixel.
11. The display panel according to claim 1, characterized in that: The edge pixels include a first edge pixel and a second edge pixel, and the second edge pixel is closer to the occlusion area than the first edge pixel; The area of the display light emitting diode in the first edge pixel blocked by the first blocking portion is smaller than the area of the display light emitting diode in the second edge pixel blocked by the first blocking portion.
12. The display panel according to claim 11, characterized in that: In a direction perpendicular to the plane where the display panel is located, the area of the display light-emitting diode in the first edge pixel that is blocked by the first blocking portion surrounds the area that is not blocked by the first blocking portion, and the area of the display light-emitting diode in the second edge pixel that is blocked by the first blocking portion and the area that is not blocked by the first blocking portion are arranged along a first direction.
13. The display panel according to claim 12, characterized in that: In the second edge pixel, the size of the display light emitting diode in the first direction is larger than that in the second direction, and the second direction intersects with the first direction.
14. The display panel according to claim 1, characterized in that: The regular pixel includes a first regular pixel, and a plurality of edge pixels are included between the first regular pixel and the occlusion area; For the plurality of edge pixels located between the first regular pixel and the blocking area, along the direction from the first regular pixel to the blocking area, the areas of the display light emitting diodes in the plurality of edge pixels blocked by the first blocking portion increase gradually.
15. The display panel according to claim 14, characterized in that: For the multiple edge pixels located between the first regular pixel and the occluding area, the area of the display light-emitting diode in the edge pixels that is blocked by the first occluding portion and the area that is not blocked by the first occluding portion are arranged along a third direction, and, along the direction from the first regular pixel to the occluding area, the size of the first occluding portion overlapping with the multiple edge pixels in the third direction increases gradually, and the third direction intersects with the arrangement direction of the multiple edge pixels.
16. A method for driving a display panel, characterized in that: For driving the display panel as claimed in claim 1, comprising: According to the mapping relationship between gray scale and current, driving current is provided to the edge pixel and the regular pixel respectively to drive the edge pixel and the regular pixel to emit light.
17. The driving method according to claim 16, characterized in that: The process of providing driving current to the edge pixel and the regular pixel respectively according to the mapping relationship between gray scale and current includes: providing driving current to the edge pixel and the regular pixel respectively according to the same mapping relationship.
18. The driving method according to claim 16, characterized in that: The mapping relationship includes a first mapping relationship corresponding to the regular pixel and a second mapping relationship corresponding to the edge pixel; The process of providing driving current to the edge pixel and the regular pixel respectively according to the mapping relationship between grayscale and current comprises: providing driving current to the regular pixel according to the first mapping relationship, and providing driving current to the edge pixel according to the second mapping relationship; When the edge pixel and the regular pixel need to display the same preset grayscale value, the current corresponding to the preset grayscale value in the second mapping relationship is smaller than the current corresponding to the preset grayscale value in the first mapping relationship.
19. The driving method according to claim 16, characterized in that: The edge pixels include a third edge pixel and a fourth edge pixel, and an area of the fourth edge pixel blocked by the first blocking portion is smaller than an area of the third edge pixel blocked by the first blocking portion; The mapping relationship includes a first mapping relationship corresponding to the regular pixel, a second A mapping relationship corresponding to the third edge pixel, and a second B mapping relationship corresponding to the fourth edge pixel; The process of providing driving current to the edge pixel and the regular pixel respectively according to the grayscale-current mapping relationship includes: providing driving current to the regular pixel according to the first mapping relationship, providing driving current to the third edge pixel according to the second A mapping relationship, and providing driving current to the fourth edge pixel according to the second B mapping relationship; Among them, when the third edge pixel, the fourth edge pixel and the regular pixel need to display the same preset grayscale value, and the brightness displayed by the third edge pixel and the fourth edge pixel is equal, the current corresponding to the preset grayscale value in the second A mapping relationship is equal to the current corresponding to the preset grayscale value in the first mapping relationship, and the current corresponding to the preset grayscale value in the second B mapping relationship is less than the current corresponding to the preset grayscale value in the first mapping relationship.
20. The driving method according to claim 18, characterized in that: The edge pixels include a fifth edge pixel and a sixth edge pixel, the sixth edge pixel is closer to the shielding area than the fifth edge pixel, and an area of the fifth edge pixel shielded by the first shielding portion is equal to an area of the sixth edge pixel shielded by the first shielding portion; The second mapping relationship includes a second C mapping relationship corresponding to the fifth edge pixel and a second D mapping relationship corresponding to the sixth edge pixel. When the fifth edge pixel and the sixth edge pixel need to display the same preset grayscale value, the current corresponding to the preset grayscale value in the second D mapping relationship is smaller than the current corresponding to the preset grayscale value in the second C mapping relationship.
21. A display device, characterized in that: It comprises the display panel as claimed in any one of claims 1 to 15.
Citation Information
Patent Citations
Display panel, display device and driving method of display panel
CN107526201A
Display panel and display device
CN107731101A