Display panel, manufacturing method thereof, and electronic device

Abstract

The present application discloses a display panel, a manufacturing method thereof, and an electronic device. The display panel includes: an array substrate; a plurality of sub-pixels disposed on the array substrate, the sub-pixels being used for image display; and microlenses disposed on a side of the sub-pixels facing away from the array substrate. Wherein, in a direction perpendicular to the array substrate, a side edge of at least one sub-pixel includes a curve or a broken line. The technical solution of the present application sets that the side edge of at least one sub-pixel in the display panel includes a curve or a broken line. In this way, the side edge length of the sub-pixel can be increased, thereby adjusting the ratio of the side edge to the area of the sub-pixel, and at the same time reducing the influence on the area of the sub-pixel. Furthermore, the attenuation rates of the emission brightness of the sub-pixels of different emission colors with the change of the viewing angle in the same direction are the same or approximately the same, solving the problem of color locus shift of the display panel caused by different attenuation rates of the emission brightness of the sub-pixels of different emission colors, thereby solving the problem of display color deviation.

Description

Technical Field

[0001] The present application relates to the technical field of electronic devices, and more specifically, to a display panel, a manufacturing method thereof, and an electronic device. Background Art

[0002] With the continuous development of science and technology, more and more electronic devices are widely used in people's daily life and work, bringing great convenience to people's daily life and work, and becoming an indispensable important tool for people today.

[0003] The display panel is the main component for an electronic device to achieve the display function. Among them, the OLED (organic light-emitting diode) display panel is one of the current mainstream display panels. A microlens (MLP) can be set on the light-emitting side of the sub-pixel to improve the light efficiency of the sub-pixel in the OLED panel, increase the brightness of the display panel, and reduce the power consumption of the display panel.

[0004] In the existing OLED panel, in the same orientation, due to the different light efficiency improvement ratios of the microlens for sub-pixels of different emission colors, when the sub-pixels of different emission colors change with the viewing angle, the brightness attenuation speeds are different, resulting in the deviation of the color locus of the OLED panel and causing the display color deviation problem. Summary of the Invention

[0005] In view of this, the present application provides a display panel, a manufacturing method thereof, and an electronic device, and the solutions are as follows:

[0006] A display panel, which includes:

[0007] An array substrate;

[0008] A plurality of sub-pixels arranged on the array substrate, and the sub-pixels are used for image display;

[0009] A microlens arranged on the side of the sub-pixel away from the array substrate;

[0010] Wherein, in the direction perpendicular to the array substrate, the side of at least one sub-pixel includes a curve or a broken line.

[0011] The technical solution of the present application also provides an electronic device, which includes the above display panel.

[0012] The technical solution of the present application also provides a manufacturing method of the above display panel, and the manufacturing method includes:

[0013] Prepare an array substrate with an anode electrode of a sub-pixel;

[0014] Form a pixel definition layer on the array substrate, and the pixel definition layer has a second opening; the second opening exposes the anode electrode;

[0015] Form a light-emitting layer of the sub-pixel within the second opening;

[0016] Form a common cathode of the sub-pixel on the side of the pixel definition layer facing away from the array substrate;

[0017] Form a microlens on the side of the common cathode facing away from the array substrate;

[0018] Wherein, by setting the geometry of the second opening, at least one side of the sub-pixel includes a curve or a broken line in the direction perpendicular to the array substrate.

[0019] As can be seen from the above description, in the display panel, manufacturing method thereof, and electronic device provided by the technical solution of the present application, at least one side of the sub-pixel in the display panel includes a curve or a broken line. In this way, the side length of the sub-pixel can be increased, so as to adjust the ratio of the side and the area of the sub-pixel, and at the same time, the influence on the area of the sub-pixel is reduced. Furthermore, the attenuation speed of the emission brightness of sub-pixels of different emission colors with the change of viewing angle is the same or approximately the same in the same orientation, thereby solving the problem of color locus shift of the display panel caused by different attenuation speeds of sub-pixels of different emission colors, and thus solving the problem of display color deviation. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0021] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present application can be implemented. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change of the proportional relationship, or adjustment of the size should still fall within the scope that can be covered by the technical content disclosed in the present application without affecting the effects that the present application can produce and the purposes that can be achieved.

[0022] Figure 1 It is a schematic diagram of the pixel arrangement mode in a display panel;

[0023] Figure 2 It is a schematic diagram of another pixel arrangement mode in a display panel;

[0024] Figure 3 It is a cross-sectional view of a display panel provided by an embodiment of the present application;

[0025] Figure 4 The top view of a sub-image with an arc on the side provided by an embodiment of the present application;

[0026] Figure 5 The top view of another sub-image with an arc on the side provided by an embodiment of the present application;

[0027] Figure 6 The top view of yet another sub-image with an arc on the side provided by an embodiment of the present application;

[0028] Figure 7 The top view of yet another sub-image with an arc on the side provided by an embodiment of the present application;

[0029] Figure 8 The top view of yet another sub-image with an arc on the side provided by an embodiment of the present application;

[0030] Figure 9 The schematic diagram of the sub-pixel arrangement in a display panel provided by an embodiment of the present application;

[0031] Figure 10 The sectional view of another display panel provided by an embodiment of the present application;

[0032] Figure 11 The schematic diagram of the structure of an electronic device provided by an embodiment of the present application;

[0033] Figure 12 The schematic flowchart of a method for manufacturing a display panel provided by an embodiment of the present application. Detailed implementation manners

[0034] Next, the embodiments in the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0035] Refer to Figure 1 as shown, Figure 1It is a schematic diagram of the pixel arrangement in a display panel. In the display panel shown, the sub-pixels 12 are arranged in a YYG pattern. Specifically, the display panel includes a plurality of repeating units 11 arranged in an array. The repeating unit 11 includes two sub-pixel groups adjacent in the first direction X. The two sub-pixel groups are the first sub-pixel group 111 and the second sub-pixel group 112 respectively. Both sub-pixel groups include three sub-pixels 12 with different emission colors arranged in sequence in the second direction Y. Among them, the first direction X is perpendicular to the second direction Y. The first direction X is the row direction of the array, and the second direction Y is the column direction of the array. The display panel includes three sub-pixels 12 with different emission colors, namely the red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B.

[0036] For Figure 1 the display panel with the sub-pixels 12 arranged in a YYG pattern as shown, the sizes and L / S values of the sub-pixels 12 are shown in Table 1.

[0037] Table 1

[0038]

[0039] In Table 1, the pixel aperture is the product of the side parallel to the first direction X and the side parallel to the second direction Y of the sub-pixel 12, which characterizes the area of the sub-pixel 12. The unit of the side length is μm. L / S(0°) represents the ratio of the side parallel to the first direction X of the sub-pixel 12 to the area of the sub-pixel 12. L / S(90°) represents the ratio of the side parallel to the second direction Y of the sub-pixel 12 to the area of the sub-pixel 12. It should be noted that the L / S values in Table 1 are normalized, that is, the ratio L / S of the side of the blue sub-pixel B to its area is set to 1.

[0040] For example, for Figure 1 the ratios L / S of the upper side (or lower side) of each of the three sub-pixels 12 to its own area are as follows in the normalized ratios:

[0041]

[0042] For Figure 1 the ratios L / S of the left side (or right side) of each of the three sub-pixels 12 to its own area are as follows in the normalized ratios:

[0043]

[0044] It can be seen that Figure 1In the shown manner, the ratio of the side of the three sub-pixels 12 in the same orientation to their area has a large difference. As shown in Table 1 above, in the 0° orientation, the L / S values of the upper sides (or lower sides) corresponding to the three sub-pixels are 2.2:1.6:1; in the 90° orientation, the L / S values of the left sides (or right sides) corresponding to the three sub-pixels are 1.09:1.09:1.

[0045] Reference Figure 2 shown, Figure 2 As shown in the figure, it is a schematic diagram of the pixel arrangement in another display panel. In the shown display panel, the sub-pixels 12 are arranged in a diamond pattern. The display panel includes three sub-pixels 12 with different emission colors, namely a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B. Specifically, the display panel includes a plurality of repeating units 11 that cannot be captured by the array. Four sub-pixels 23 are arranged in an array in the repeating unit 11. The four sub-pixels include two green sub-pixels G, a red sub-pixel R, and a blue sub-pixel B. The two green sub-pixels G are arranged diagonally. Among them, the first direction X is perpendicular to the second direction Y. The first direction X is the row direction of the array, and the second direction Y is the column direction of the array.

[0046] For Figure 2 the display panel with the sub-pixels 12 arranged in a diamond pattern as shown, the size and L / S value of the sub-pixels 12 are shown in Table 2.

[0047] Table 2

[0048]

[0049] In Table 2, the pixel aperture is the product of the side of the sub-pixel 12 parallel to the second direction Y and the side parallel to the first direction X, which characterizes the area of the sub-pixel 12. The unit of the side length is μm. L / S(0°) represents the ratio of the side of the sub-pixel 12 parallel to the second direction Y to the area of the sub-pixel 12. L / S(90°) represents the ratio of the side of the sub-pixel 12 parallel to the first direction X to the area of the sub-pixel 12. It should be noted that the L / S values in Table 1 are normalized, that is, the ratio L / S of the side of the blue sub-pixel B to its area is set to 1. In Figure 2 the shown manner, the short sides of some green sub-pixels G are parallel to the first direction X, and the short sides of the other part of the green sub-pixels G are parallel to the second direction Y. In Table 2, the data of the green sub-pixel G with the short side parallel to the second direction X is used for description.

[0050] For example, for Figure 2 the ratios of the upper left sides (or lower right sides) of the three sub-pixels 12 to their own areas L / S have the following normalized ratios:

[0051]

[0052] For Figure 2 in the three sub-pixels 12, the normalized ratios of the ratio L / S of the upper right side (or lower left side) of each sub-pixel to its own area are as follows:

[0053]

[0054] It can be seen that Figure 2 in the manner shown, the ratios of the sides in the same orientation of the three sub-pixels 12 to their areas have large differences. As shown in Table 2, in the 45° orientation, the L / S values of the upper left sides (or lower right sides) corresponding to the three sub-pixels are 1.33:1.25:1; in the 135° orientation, the L / S values of the upper right sides (or lower left sides) corresponding to the three sub-pixels are 1.33:1.67:1.

[0055] As described in the background art, in the existing OLED panel, in the same orientation, the sub-pixels of different emission colors have different light effect improvement ratios due to the micro-lenses. This is because the inventor's research found that for the OLED panel with MLP, the light effect improvement ratio of the sub-pixel is related to the ratio of the side length L of the sub-pixel to its area S. Moreover, the larger the L / S value, the greater the light effect improvement. As shown in Table 1 and Table 2, in the OLED panel, the L / S values of the sub-pixels of different emission colors are different, resulting in different light effect improvement ratios of the sub-pixels of different emission colors in the same orientation. With the change of viewing angle, the brightness attenuation speeds of the sub-pixels of different emission colors are different, thus leading to the deviation of the color locus of the OLED panel and causing the problem of display color shift.

[0056] If the sub-pixels are adjusted to ensure that the viewing angle brightness of the sub-pixels of different emission colors in the display panel decays at the same ratio after adding the MLP, it is necessary to re-adjust the lifetime parameters of the sub-pixels, and the workload is large. Moreover, the existing adjustment methods often need to adjust the area of the sub-pixels, which will result in the adjustment of the areas and shapes of the sub-pixels of different emission colors, and the adjustment method is complex.

[0057] To solve the above problems, the embodiments of the present application provide a display panel, a manufacturing method thereof, and an electronic device. The display panel includes:

[0058] An array substrate;

[0059] A plurality of sub-pixels disposed on the array substrate, and the sub-pixels are used for image display;

[0060] A microlens disposed on the side of the sub-pixel facing away from the array substrate;

[0061] Wherein, in the direction perpendicular to the array substrate, the side of at least one sub-pixel includes a curve or a broken line.

[0062] In the embodiments of the present application, it is provided that the side of at least one sub-pixel in the display panel includes a curve or a broken line. In this way, the side length of the sub-pixel can be increased, so as to adjust the ratio of the side to the area of the sub-pixel, while reducing the influence on the area of the sub-pixel. Furthermore, the attenuation rate of the luminous brightness of sub-pixels with different emission colors changing with the viewing angle in the same direction is made the same, solving the problem of color locus shift of the OLED panel caused by different attenuation rates of the luminous brightness of sub-pixels with different emission colors, thereby solving the problem of display color deviation.

[0063] It should be noted that in the embodiments of the present application, the display panel may be an OLED panel, and the sub-pixel is an OLED. However, the type of the display panel is not limited to the OLED panel, and it may also be other types of display panels. In other ways, the display panel is a micro-LED (light-emitting diode) panel. When the display panel is a micro-LED panel, the sub-pixel 12 is a micro-LED, where the micro-LED is a Mini LED or a Micro LED panel.

[0064] To make the above objects, features, and advantages of the present application more obvious and understandable, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0065] Reference Figure 3 and Figure 4 as shown, Figure 3 is a cross-sectional view of a display panel provided by an embodiment of the present application, Figure 4 is a top view of a sub-pixel with an arc on its side provided by an embodiment of the present application. The shown display panel includes:

[0066] An array substrate 21;

[0067] A plurality of sub-pixels 22 provided on the array substrate 21, and the sub-pixels 22 are used for image display;

[0068] A microlens 23 provided on the side of the sub-pixel 22 facing away from the array substrate 21;

[0069] Among them, in the direction perpendicular to the array substrate 21, the side of at least one sub-pixel 22 includes a curve or a broken line.

[0070] In the embodiments of the present application, the side of at least one sub-pixel 22 in the display panel includes a curve or a broken line. In this way, without changing the area of the sub-pixel 22, the side length of the sub-pixel 12 can be increased, so as to adjust the ratio of the side to the area of the sub-pixel 22. Furthermore, the attenuation rate of the luminous brightness of sub-pixels 22 with different emission colors changing with the viewing angle in the same direction is made the same or approximately the same, solving the problem of color locus shift of the display panel caused by different attenuation rates of the luminous brightness of sub-pixels 22 with different emission colors, thereby solving the problem of display color deviation.

[0071] A plastic encapsulation structure 24 is provided on the light-emitting side of the sub-pixel 22 for encapsulating and protecting the sub-pixel 22 to prevent moisture from eroding the sub-pixel 22. At the same time, the plastic encapsulation structure 24 can also flatten the surface of the sub-pixel 22, facilitating the formation of a microlens 23 above the sub-pixel 22. The microlens 23 is disposed on the surface of the plastic encapsulation structure 24 facing away from the array substrate 21. In the direction perpendicular to the array substrate 21, the plastic encapsulation structure 24 is a multi-layer stacked structure, and the multi-layer stacked structure includes an inorganic plastic encapsulation layer and an organic plastic encapsulation layer stacked alternately.

[0072] In the display panel, a plurality of sub-pixels 12 include a first sub-pixel, a second sub-pixel, and a third sub-pixel with sequentially increasing areas; in the direction perpendicular to the array substrate, the first sub-pixel is rectangular or has rounded corners, and at least the side of the third sub-pixel includes a curve or a broken line. The first sub-pixel, the second sub-pixel, and the third sub-pixel have different emission colors.

[0073] Since the area of the third sub-pixel is the largest, in the conventional rectangular sub-pixel pattern, the larger the area of the sub-pixel, the smaller the corresponding L / S value. In the embodiment of the present application, on the premise of keeping the area of the third sub-pixel unchanged, it is set that the side of the third sub-pixel includes a curve or a broken line. In this way, the L / S value of the side including the curve or the broken line within it can be increased, the difference in the L / S values corresponding to the sides of the third sub-pixel and the first sub-pixel in the same orientation can be reduced, and when the emission brightness changes with the viewing angle in the same orientation, the difference in the brightness attenuation speeds of the two can be reduced. The difference in the L / S values corresponding to the sides of the third sub-pixel and the second sub-pixel in the same orientation can be reduced, and when the emission brightness changes with the viewing angle in the same orientation, the difference in the brightness attenuation speeds of the two can be reduced, solving the problem of color locus shift of the display panel caused by different brightness attenuation speeds of sub-pixels 22 with different emission colors, thereby solving the problem of display color deviation.

[0074] In the embodiment of the present application, when the sub-pixel 12 is an OLED, the third sub-pixel is a blue sub-pixel B. When the OLED is used as the sub-pixel 12, since the blue pixel B has the shortest lifespan, its area is the largest in the display panel. Therefore, among the L / S values corresponding to the sides of the three sub-pixels 12 in the same orientation, the L / S value corresponding to the blue pixel B is the smallest. Setting the third sub-pixel as the blue sub-pixel B can increase its L / S value. In this way, the L / S values corresponding to the sides of the three sub-pixels 12 in the same orientation are relatively close or the same, and further, the attenuation speeds of the emission brightnesses of sub-pixels 22 with different emission colors with the viewing angle in the same orientation are the same, solving the problem of color locus shift of the display panel caused by different brightness attenuation speeds of sub-pixels 22 with different emission colors, thereby solving the problem of display color deviation.

[0075] Based on the arrangement of the sub-pixels 22 in the display panel, one of the first sub-pixel and the second sub-pixel is set as the red sub-pixel R, and the other is set as the green sub-pixel G. If the sub-pixels 22 in the display panel provided by the embodiments of the present application adopt Figure 1 the YYG arrangement shown, the first sub-pixel with the smallest area is the red sub-pixel R, and the second sub-pixel is the green sub-pixel G. If the sub-pixels 22 in the display panel provided by the embodiments of the present application adopt Figure 2 the diamond arrangement shown, the first sub-pixel with the smallest area is the green sub-pixel G, and the second sub-pixel is the red sub-pixel R.

[0076] It is possible to set both the first sub-pixel and the second sub-pixel as rectangles or rounded rectangles. At this time, the shapes and areas of the first sub-pixel and the second sub-pixel are not changed, and the area of the third sub-pixel is not changed. The third sub-pixel is changed from a rectangular structure to a figure with an arc or a broken-line side. Only the side length of the third sub-pixel needs to be adjusted, and the process is simple.

[0077] For Figure 2 the display panel shown, before adjustment, the blue sub-pixel B is a square with a side length of 20*20. After adjustment, the blue sub-pixel B can be as Figure 4 shown. The dotted square is the square-structured blue sub-pixel B before adjustment. Each side of the blue sub-pixel B after adjustment includes a concave arc and a convex arc. The circular radii corresponding to the concave arc and the convex arc are the same. Set the radius of this circle as r1. Half of the side length of the square is the chord length L1 corresponding to the 180° central angle of this circle. The arc lengths of the concave arc and the convex arc both correspond to the arc length of the 180° central angle of this circle. Based on the arc length formula and the chord length formula, the arc lengths of the concave arc and the convex arc can be calculated to both correspond to the arc length of the 180° central angle of this circle. At this time, the L / S value corresponding to each side of the blue sub-pixel B is 1.57.

[0078] Referring to Figure 5 shown, Figure 5 is a top view of another sub-pixel with an arc on the side provided by the embodiments of the present application. The dotted square is the square-structured blue sub-pixel B before adjustment. Each side of the blue sub-pixel B after adjustment includes a concave arc and a convex arc. The circular radii corresponding to the concave arc and the convex arc are the same. Set the radius of this circle as r2. Half of the side length of the square is the chord length L2 corresponding to the 9° central angle of this circle. The arc lengths of the concave arc and the convex arc both correspond to the arc length of the 90° central angle of this circle. Based on the arc length formula and the chord length formula, the arc lengths of the concave arc and the convex arc can be calculated to both correspond to the arc length of the 180° central angle of this circle. At this time, the L / S value corresponding to each side of the blue sub-pixel B is 1.11.

[0079] Referring to Figure 6As shown Figure 6 FIG. 2 is a top view of another sub-pixel with an arc on the side provided by the embodiment of the present application. The dotted square is the blue sub-pixel B with a square structure before adjustment. After adjustment, each side of the blue sub-pixel B includes a concave arc and a convex arc. The circular radii corresponding to the concave arc and the convex arc are the same. Let the radius of the circle be r3. Half of the length of the upper left (or lower right) side of the square is the chord length L3 corresponding to the central angle of 145° of the circle. The arc lengths of the concave arc and the convex arc both correspond to the arc length of the central angle of 145° of the circle. Half of the length of the lower left (or upper right) side of the square is the chord length corresponding to the central angle of 180° of the circle. The arc lengths of the concave arc and the convex arc both correspond to the arc length of the central angle of 180° of the circle. Based on the arc length formula and the chord length formula, the arc lengths of the concave arc and the convex arc can be calculated to both correspond to the arc length of the central angle of 180° of the circle. At this time, as shown in Table 3 below, the L / S values corresponding to the upper left (or lower right) side of the blue sub-pixel B are all 1.33, and the L / S values corresponding to the lower left (or upper right) side are all 1.57.

[0080] Table 3

[0081]

[0082] It can be seen from Table 3 that after the blue sub-pixel B is adjusted according to the embodiment of the present application, while keeping its area of 20*20 unchanged, the L / S of each side is effectively increased compared with that before the adjustment of the blue sub-pixel B, and the difference in the L / S corresponding to the same-side of the red sub-pixel R and the green sub-pixel G is reduced.

[0083] The first sub-pixel is a rectangle or a rounded rectangle. Taking the first sub-pixel with the smallest area as a reference, its existing area and the graphic design of the rectangle or the rounded rectangle are not maintained. On the premise of keeping the area of the third sub-pixel unchanged, the side of the third sub-pixel is adjusted to include an arc or a broken line, and the difference in the L / S corresponding to the same-side of the third sub-pixel and the first sub-pixel is reduced, without adjusting the first sub-pixel, thus simplifying the manufacturing process.

[0084] In the direction perpendicular to the array substrate 21, the side of the second sub-pixel includes a curve or a broken line. Similarly, the first sub-pixel is a rectangle or a rounded rectangle. Taking the first sub-pixel with the smallest area as a reference, its existing area and the graphic design of the rectangle or the rounded rectangle are not maintained. On the premise of keeping the area unchanged, the side of the second sub-pixel is adjusted to include an arc or a broken line, and the difference in the L / S corresponding to the same-side of the second sub-pixel and the first sub-pixel is reduced, without adjusting the first sub-pixel, thus simplifying the manufacturing process.

[0085] In the embodiments of the present application, for the side of a sub-pixel with an arc, the side can have one or more arcs, and the central angle corresponding to the arc can be set according to requirements. Without changing the area of the sub-pixel, its side length can be adjusted, and then the L / S can be adjusted. For example, the value range of the central angle can be 90°-180°, including the endpoint values. It should be noted that for the OLED display panel, the side structure design of the sub-pixel 22 can be adjusted by adjusting the opening morphology in the pixel definition layer PDL.

[0086] In the embodiments of the present application, it is set that the ratio of the side length to the area of the first sub-pixel, the second sub-pixel, and the third sub-pixel in the same orientation satisfies the same condition. Among them, the ratio satisfying the same condition value is the same or approximately the same. In this way, for the L / S values corresponding to the sides in the same orientation, the L / S values of the three sub-pixels are the same or approximately the same, so that the attenuation rates of the emission brightness of the sub-pixels 22 with different emission colors with respect to the viewing angle in the same orientation are the same or approximately the same, solving the problem of color trajectory deviation of the display panel caused by different brightness attenuation rates of the sub-pixels 22 with different emission colors, thereby solving the problem of display color deviation.

[0087] In the embodiments of the present application, in the direction perpendicular to the array substrate, for a sub-pixel whose side includes a curve or a broken line, the sub-pixel is a centrosymmetric figure with respect to its own center. In this way, it is convenient for the preparation of the pixel pattern of the pixel definition layer PDL in the sub-pixel 22, and the manufacturing process is simplified.

[0088] It should be noted that in the embodiments of the present application, when adjusting the side of a certain sub-pixel to include a curve or a broken line, it is not limited that all sides of the sub-pixel include a curve or a broken line. One or more of its sides can be set to include a curve or a broken line. For the side including a curve or a broken line, the corresponding L / S value of the side can be adjusted, and the difference between the L / S value of the side and the L / S values of the sides of other color sub-pixels in the same orientation can be reduced in the orientation corresponding to the side, thereby solving the problem of color trajectory deviation in this orientation.

[0089] In Figures 4 - 6 Taking the example that the side of the blue sub-pixel B is set to have an arc curve in the shown manner, while ensuring that the area of the blue sub-pixel B remains unchanged, the length of at least one side of it is increased, so as to adjust the corresponding L / S value of the corresponding side and reduce the difference between the L / S value of the side of the blue sub-pixel B and the L / S values of the sides of other color sub-pixels in the same orientation.

[0090] Obviously, in the embodiments of the present application, when adjusting the side pattern of the blue sub-pixel B, it is not limited to Figures 4 - 6In this case, the four side edges of the blue sub-pixel B are adjusted. In other cases, the shape of only some of the side edges of the blue sub-pixel B may be adjusted. For example, one side edge, or two side edges, or three side edges of the blue sub-pixel B may be provided with curves or broken lines.

[0091] Reference Figure 7 as shown Figure 7 FIG. is a top view of another sub-pixel with an arc-shaped side edge provided by an embodiment of the present application. In this method, it is set that the opposite side edges of the sub-pixel 22 in the 45° direction shown by the arrow include arc curves, while the opposite side edges in the 135° direction shown by the other arrow remain unchanged and are two parallel straight side edges.

[0092] One or more side edges of the sub-pixel 22 may include curves or broken lines according to requirements, and the corresponding L / S value is adjusted, so as to reduce the display difference of sub-pixels 22 with different emission colors in the corresponding direction.

[0093] The display panel has a plurality of repeating units, and each repeating unit includes a plurality of sub-pixels 22. In the same repeating unit, the emission colors of the plurality of sub-pixels 22 are not completely the same. The repeating unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel with gradually increasing areas and different emission colors. The repeating unit has at least one first sub-pixel, at least one second sub-pixel, and at least one third sub-pixel. For the same repeating unit, one or more of the first sub-pixel, the second sub-pixel, and the third sub-pixel may be provided with side edges including curves or broken lines.

[0094] such as Figures 4 - 7 As shown, in the direction perpendicular to the array substrate 21, the side edge of the sub-pixel 22 includes a curve, and the curve is an arc; in the direction perpendicular to the array substrate 21, the sub-pixel 22 includes a rectangular region, and the same side edge of the rectangular region has an arc depression recessed toward the center and an arc protrusion protruding away from the center, and the arc lengths and radii of the arc depression and the arc protrusion are the same. The manufacturing process of the arc-shaped side edge is simple, which reduces the manufacturing process difficulty and manufacturing cost of the panel.

[0095] Optionally, each side edge of the rectangular region has an arc depression and an arc protrusion; on the same side edge, the areas of the arc depression and the arc protrusion are complementary. In this way, the reduced area of the arc depression and the increased area of the arc protrusion cancel each other out, so that the area of the sub-pixel 22 can be kept unchanged while increasing the side edge length, and the manufacturing process of the arc-shaped side edge is simple.

[0096] For the side including curves or broken lines, it can be set that the side has a concave structure facing the inside of the sub-pixel 22 and a convex structure facing the outside of the sub-pixel 22. Among them, the number of the concave structure and the convex structure is the same, and in the direction perpendicular to the array substrate 21, the areas of the concave structure and the convex structure are the same. Thus, while ensuring that the area of the sub-pixel 22 remains unchanged, the side length can be increased and the L / S value can be adjusted. Among them, the shapes of the concave structure and the convex structure are not limited to Figures 4 - 7 the arc-shaped tooth-like structure with an arc curve shown, and can also be a tooth-like structure with broken lines such as a triangle or a rectangle.

[0097] Reference Figure 8 shown in Figure 8 is a top view of another sub-pixel with an arc on the side provided by the embodiment of the present application. In this way, the side of the sub-pixel 22 includes a broken line. For the same side, there are triangular protrusions and triangular depressions, so that the side is a broken line. The number and area of the triangular protrusions and triangular depressions are the same, so as to ensure that while increasing the side length, the area of the sub-pixel 22 remains unchanged.

[0098] When ensuring that the area of the sub-pixel 22 remains unchanged and increasing the side length, it can be set that the side includes a broken line or a curve. The curve includes but is not limited to a broken line, an arc curve, and a wavy line, etc. It can be set based on requirements, and the embodiments of the present application do not make specific limitations on this.

[0099] For the same repeating unit in the display panel, it can be set that the side of the sub-pixel 22 with one emission color includes a curve or a broken line, or the sides of the sub-pixels 22 with multiple emission colors include curves or broken lines. It is not limited to only setting that the side of the blue sub-pixel B includes a curve or a broken line. It can also be set that the sides of the red sub-pixel R and / or the green sub-pixel G include curves or broken lines.

[0100] Reference Figure 9 shown in Figure 9 is a schematic diagram of the arrangement of sub-pixels in a display panel provided by the embodiment of the present application. The shape of the side of each sub-pixel 22 can be set by adjusting the graphic structure of the pixel definition layer PDL. According to the actual morphology of the pixel definition layer PDL, the side shape can be adjusted to achieve the target L / S, and at the same time, the opening area of the pixel definition layer PDL does not change, ensuring that the area of the sub-pixel 22 remains unchanged.

[0101] As shown in Table 3, in the 45° azimuth, before adjustment, the L / S value of the side of the red sub-pixel R is 1.33, and the L / S value of the side of the green sub-pixel G in the 45° azimuth is 1.25. In Figure 9In the shown manner, the green sub-pixel G includes arc curves on both sides in the 45° direction, which can increase the L / S value of these two sides. The other two opposite sides are parallel straight sides. The red sub-pixel R maintains its original straight side structure on the sides in this direction. In this way, by keeping the L / S value of the corresponding sides of the red sub-pixel R in this direction unchanged at 1.33, the L / S value of the corresponding sides of the green sub-pixel G in this direction can be increased on the basis of 1.25, thereby reducing the difference in the L / S values of the corresponding sides of the red sub-pixel R and the green sub-pixel G in this direction, and making the brightness attenuation of the red sub-pixel R and the green sub-pixel G the same in this direction.

[0102] As shown in Table 3, in the 135° direction, before adjustment, the L / S value of the side of the red sub-pixel R is 1.33, and the L / S value of the side of the green sub-pixel G in the 45° direction is 1.67. In Figure 9 the shown manner, in Figure 9 the shown manner, the red sub-pixel R is set to include arc curves on both sides in the 135° direction, which can increase the L / D value of these two sides. The other two opposite sides are parallel straight sides. The green sub-pixel G maintains its original straight side structure on the sides in this direction. In this way, by keeping the L / S value of the corresponding sides of the green sub-pixel G in this direction unchanged at 1.67, the L / S value of the corresponding sides of the red sub-pixel R in this direction can be increased on the basis of 1.33, thereby reducing the difference in the L / S values of the corresponding sides of the red sub-pixel R and the green sub-pixel G in this direction, and making the brightness attenuation of the red sub-pixel R and the green sub-pixel G the same in this direction.

[0103] In the direction perpendicular to the array substrate 21, the microlenses 23 are arranged in one-to-one correspondence with the sub-pixels 22. The geometric shape of the microlens 23 is similar to the geometric shape of the corresponding sub-pixel 22, that is, the geometric shape of the microlens 23 is the same as the geometric shape of the sub-pixel 22, or the geometric shape of the microlens 23 is a scaled-down or enlarged version of the geometric shape of the sub-pixel 22. Setting the geometric shape of the microlens 23 to be similar to the geometric shape of the corresponding sub-pixel 22 enables the microlens 23 to effectively improve the light efficiency of the corresponding sub-pixel 22.

[0104] In the embodiment of the present application, as Figure 3 shown, on the side of the sub-pixel 23 facing away from the array substrate 21, there are a first light-transmitting medium layer LM and a second light-transmitting medium layer HM with different refractive indices; the first light-transmitting medium layer LM has a first opening corresponding to the sub-pixel 22 one by one; the second light-transmitting medium layer HM is located on the side of the first light-transmitting medium layer LM facing away from the array substrate 21 and fills the first opening; the microlens 23 includes the first opening. Among them, the refractive index of the first light-transmitting medium layer LM is less than the refractive index of the second light-transmitting medium layer HM. By setting the shape of the first opening, the microlens 23 with the required pattern is formed.

[0105] The side wall of the first opening is the interface between the first light-transmitting medium layer LM and the second light-transmitting medium layer. By adjusting the tilt angle θ of this interface, the proportion of reflection and refraction of the light emitted by the sub-pixel 22 is adjusted, thereby achieving the adjustment of light and improving the light efficiency. Among them, the tilt angle θ is the angle between the tangent of this interface and the plane where the array substrate is located.

[0106] Reference Figure 10 As shown in Figure 10 FIG. is a cross-sectional view of another display panel provided by an embodiment of the present application. On the basis of the manner shown in Figure 3 FIG., the encapsulation structure 24 in the display panel includes: a first inorganic encapsulation layer 241, an organic encapsulation layer 242, and a second inorganic encapsulation layer 243 arranged in sequence. The surface of the array substrate 21 has a pixel definition layer PDL. The pixel definition layer PDL has a second opening corresponding to the sub-pixel 22 one by one. The second opening is for forming the sub-pixel 22. Among them, the encapsulation structure 24 is arranged on the side of the pixel definition layer PDL away from the array substrate 21.

[0107] Optionally, the display panel further includes a touch control electrode TP to integrate a touch detection function in the display panel. In the direction perpendicular to the array substrate 21, there is no overlapping part between the touch control electrode TP and the sub-pixel 22 to avoid the touch control electrode TP affecting the display effect.

[0108] The touch control electrode TP is arranged on the side of the encapsulation structure 24 away from the array substrate 21. Based on the existing film layer in the display panel as the substrate of the touch control electrode TP, the touch control electrode TP is prepared by a patterned metal layer. Compared with an external touch panel, there is no need for a separate substrate, and the touch control electrode is directly integrated inside the display panel, reducing the thickness of the display panel.

[0109] In the embodiment of the present application, the first light-transmitting medium layer LM is set to completely cover the touch control electrode TP. In this way, in the direction perpendicular to the array substrate 21, the touch control electrode TP is covered with the first light-transmitting medium layer LM and the second light-transmitting medium layer HM which are stacked and have different refractive indexes. The first light-transmitting medium layer LM and the second light-transmitting medium layer HM which are stacked and have different refractive indexes can be used as an anti-reflection layer to reduce the reflection of the touch control electrode to ambient light and reduce its visibility.

[0110] Based on the above display panel embodiment, another embodiment of the present application further provides an electronic device, as shown in Figure 11 FIG.

[0111] Reference Figure 11 As shown in Figure 11A schematic structural diagram of an electronic device provided by an embodiment of the present application. The electronic device includes a display panel 31, and the display panel 31 is the display panel described in any of the above embodiments. Among them, the electronic device can be an electronic device with a display function such as a mobile phone, a notebook computer, a tablet computer, an all-in-one computer, a television, and a smart wearable device.

[0112] In the embodiment of the present application, the electronic device adopts the display panel of the above embodiment, which can improve the light efficiency through micro-transparency, and at the same time, by setting the sub-pixel 22 to have a curved or broken-line side, adjusting the ratio of the side and area of the sub-pixel 22, so that the decay rates of the emission brightness of the sub-pixels 22 with different emission colors at the same orientation with respect to the viewing angle are the same or approximately the same, solving the problem of color locus shift of the display panel caused by different decay rates of the emission brightness of the sub-pixels 22 with different emission colors, thereby solving the problem of display color deviation.

[0113] Based on the above embodiment, another embodiment of the present application further provides a manufacturing method of a display panel, and the manufacturing method is as Figure 12 shown.

[0114] Refer to Figure 12 shown, Figure 12 A schematic flow chart of a manufacturing method of a display panel provided by an embodiment of the present application. The manufacturing method includes:

[0115] Step S11: Prepare an array substrate with an anode electrode of a sub-pixel.

[0116] Step S12: Form a pixel definition layer on the array substrate. The pixel definition layer has a second opening; the second opening exposes the anode electrode.

[0117] Step S13: Form a light-emitting layer of a sub-pixel in the second opening.

[0118] Step S14: Form a common cathode of a sub-pixel on the side of the pixel definition layer facing away from the array substrate.

[0119] Among them, the common cathode is a light-transmitting electrode.

[0120] Step S15: Form a microlens on the side of the common cathode facing away from the array substrate.

[0121] Among them, by setting the geometric shape of the second opening, at least one side of a sub-pixel includes a curve or a broken line in the direction perpendicular to the array substrate.

[0122] In the manufacturing method provided by the embodiments of the present application, sub-pixels with folded or curved side edges can be simply manufactured by etching an image through an opening in the pixel definition layer, and the ratio of the side edge to the area can be adjusted without changing the area of the sub-pixels, so that the attenuation rates of the luminous brightness of sub-pixels of different luminous colors with respect to the viewing angle are the same or approximately the same in the same orientation, thereby solving the problem of color locus shift of the display panel caused by different attenuation rates of the brightness of sub-pixels 22 of different luminous colors, and thus solving the problem of display color deviation.

[0123] In this specification, the various embodiments are described in a progressive, or parallel, or a combination of progressive and parallel manners. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other. For the electronic devices and manufacturing methods disclosed in the embodiments, since they correspond to the display panels disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the corresponding parts of the display panel embodiments for description.

[0124] It should be noted that in the description of the present application, it should be understood that the descriptions of the figures and the embodiments are illustrative rather than restrictive. The same reference numerals throughout the embodiments of the specification identify the same structures. Additionally, for the sake of understanding and ease of description, some layers, films, panels, regions, etc. may be exaggerated in thickness in the figures. At the same time, it can be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, the element can be directly on the other element or there may be intermediate elements present. Additionally, "on..." means positioning the element on or below another element, but essentially does not mean positioning on the upper side of another element according to the direction of gravity.

[0125] The orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be intermediate components present at the same time.

[0126] It should also be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that an article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the article or device comprising the above elements.

[0127] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that, The display panel includes: An array substrate; A plurality of sub-pixels disposed on the array substrate, the sub-pixels being configured to perform image display; Microlenses disposed on a side of the sub-pixels facing away from the array substrate; Wherein, in a direction perpendicular to the array substrate, at least one side of the sub-pixels includes a curve or a broken line; the plurality of sub-pixels include a first sub-pixel, a second sub-pixel, and a third sub-pixel with sequentially increasing areas; the ratios of the side lengths to the respective areas of the first sub-pixel, the second sub-pixel, and the third sub-pixel in the same orientation satisfy the same condition.

2. The display panel according to claim 1, wherein In a direction perpendicular to the array substrate, the first sub-pixel is rectangular or rounded rectangular, and at least one side of the third sub-pixel includes a curve or a broken line.

3. The display panel according to claim 2, wherein In a direction perpendicular to the array substrate, at least one side of the second sub-pixel includes a curve or a broken line.

4. The display panel according to claim 1, wherein In a direction perpendicular to the array substrate, for the sub-pixels whose sides include a curve or a broken line, the sub-pixels are centrosymmetric figures with respect to their own centers.

5. The display panel according to claim 1, wherein In a direction perpendicular to the array substrate, the side of the sub-pixel includes a curve, and the curve is an arc. In a direction perpendicular to the array substrate, the sub-pixel includes a rectangular region, and the same side of the rectangular region has an arc depression recessed toward the center and an arc protrusion protruding away from the center, and the arc lengths and radii of the arc depression and the arc protrusion are the same.

6. The display panel according to claim 5, wherein Each side of the rectangular region has the arc depression and the arc protrusion; on the same side, the areas of the arc depression and the arc protrusion are complementary.

7. The display panel according to claim 1, wherein In a direction perpendicular to the array substrate, the microlenses are disposed in one-to-one correspondence with the sub-pixels, and the geometric shape of the microlenses is similar to the geometric shape of the corresponding sub-pixels.

8. The display panel according to claim 1, wherein A first light-transmitting medium layer and a second light-transmitting medium layer with different refractive indices are disposed on a side of the sub-pixels facing away from the array substrate; The first light-transmitting medium layer has a first opening corresponding to the sub-pixels one by one; the second light-transmitting medium layer is located on a side of the first light-transmitting medium layer facing away from the array substrate and fills the first opening; the microlenses include the first opening.

9. An electronic device, characterized in that, Including the display panel according to any one of claims 1-8.

10. A method for manufacturing a display panel according to any one of claims 1-8, characterized in that, The manufacturing method includes: Preparing an array substrate with an anode electrode of a sub-pixel; Forming a pixel defining layer on the array substrate, the pixel defining layer having a second opening; the second opening exposes the anode electrode; Forming a light-emitting layer of the sub-pixel in the second opening; Forming a common cathode of the sub-pixel on a side of the pixel defining layer facing away from the array substrate; Forming microlenses on a side of the common cathode facing away from the array substrate; Wherein, by setting the geometric shape of the second opening, at least one side of the sub-pixels includes a curve or a broken line in a direction perpendicular to the array substrate.

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