A display panel and display device

Abstract

This application provides a display panel and a display device. The display panel includes pixels and photosensitive holes, with the photosensitive holes located in a second region and not overlapping with a first region. First-type pixels and second-type pixels are located in the first region and the second region, respectively. The light transmittance corresponding to the first pixel definition layer is less than the light transmittance corresponding to the second pixel definition layer. A plurality of first-type openings include a first opening and a second opening, and a plurality of second-type openings include a third opening and a fourth opening. The first opening in the first opening group overlaps with the third opening; the projected area of ​​the first opening is larger than the projected area of ​​the third opening, and the third opening exposes at least a portion of a first electrode. The second opening in the second opening group overlaps with the fourth opening; the projected area of ​​the fourth opening is larger than the projected area of ​​the second opening, and the second opening exposes at least a portion of the first electrode. At least a portion of the first-type pixels correspond to the first opening group; and the second-type pixels correspond to the second opening group.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display panel and display device. Background Technology

[0002] With the gradual development of display technology, photosensitivity has become an essential function of display devices. For existing display devices, the realization of photosensitivity typically relies on photosensitive devices, which receive ambient light through photosensitive holes on the display panel. However, the distribution of photosensitive holes in different areas of the display panel is usually different. Considering that the arrangement of photosensitive holes affects the hue of their respective areas, the hue of different areas of the display panel in existing designs is prone to significant differences due to the non-uniform distribution of these photosensitive holes, thus affecting the display effect. Summary of the Invention

[0003] This application provides a display panel and display device to solve the problem of significant color differences in different areas of the display panel caused by the above-mentioned differences in the distribution of photosensitive holes.

[0004] In view of this, this application provides a display panel including pixels and photosensitive holes, wherein the pixels are located in a display area; the display area includes a first area and a second area, the photosensitive holes are located in the second area and do not overlap with the first area; the plurality of pixels include a first type of pixel and a second type of pixel, the first type of pixel and the second type of pixel are located in the first area and the second area respectively.

[0005] The display panel also includes a substrate, a first pixel definition layer, and a second pixel definition layer, wherein the second pixel definition layer is located on the side of the first pixel definition layer away from the film layer containing the first electrode. The light-emitting layer corresponding to the pixel receives the charge provided by the first electrode.

[0006] The light transmittance corresponding to the first pixel definition layer is less than the light transmittance corresponding to the second pixel definition layer.

[0007] The first pixel definition layer includes a first type of opening that penetrates the first pixel definition layer, and the second pixel definition layer includes a second type of opening that penetrates the second pixel definition layer; the plurality of first type openings include a first opening and a second opening, and the plurality of second type openings include a third opening and a fourth opening; along a direction perpendicular to the plane where the display panel is located, the first opening and the third opening overlap, and the second opening and the fourth opening overlap.

[0008] There is a first opening group, which includes a first opening and a third opening; the projected area of ​​the first opening on the substrate is greater than the projected area of ​​the third opening on the substrate, and the third opening exposes at least a portion of the first electrode.

[0009] There is a second set of openings, which includes a second opening and a fourth opening; the projected area of ​​the fourth opening on the substrate is greater than the projected area of ​​the second opening on the substrate, and the second opening exposes at least a portion of the first electrode.

[0010] Among them, at least some of the first type of pixels correspond to the first aperture group; the second type of pixels correspond to the second aperture group.

[0011] Based on the same inventive concept, this application also provides a display device, including the above-mentioned display panel.

[0012] Compared with the prior art, the display panel and display device provided by the present invention achieve at least the following beneficial effects: This application designs a second type of pixel within a second region to correspond with a second aperture group. By utilizing the characteristic of the second aperture group to reduce the overall light transmittance of the region containing the second type of pixel, the influence of the photosensitive aperture on the light transmittance of the second region can be compensated. This helps to relatively reduce the overall light transmittance of the second region, thereby reducing the light transmittance difference between the first and second regions, and thus reducing or eliminating the hue difference between the two regions. Furthermore, in this embodiment, at least some of the first type of pixels are also associated with a first aperture group. This utilizes the characteristic of the first aperture group to increase the overall light transmittance of the region containing the first type of pixel, relatively increasing the overall light transmittance of the first region, reducing the light transmittance difference between the first and second regions, and thus reducing or eliminating the hue difference between the two regions. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a top view of a portion of the structure of a display panel in related technologies; Figure 2 for Figure 1 The diagram shows a cross-sectional view of a portion of the film layer in the display panel along section line AA'. Figure 3 A top view of a portion of the structure of the display panel provided in this application; Figure 4 for Figure 3 A cross-sectional view of part of the structure of the display panel shown along section line BB'. Figure 5A for Figure 4 An enlarged schematic diagram of the structure of the first opening group shown; Figure 5B for Figure 4 An enlarged schematic diagram of the second opening group structure shown; Figure 6 This application provides a top view of a partial structure of a display panel; Figure 7 for Figure 6 A cross-sectional view of part of the structure of the display panel shown along section line CC'. Figure 8 A top view of a portion of the structure of the display panel provided in this application; Figure 9 A top view of a portion of the structure of the display panel provided in this application; Figure 10 A top view of a portion of the structure of the display panel provided in this application; Figure 11 for Figure 10 A cross-sectional view of part of the structure of the display panel shown along section line DD'. Figure 12 This application provides a top view of a partial structure of a display panel; Figure 13 for Figure 12 A cross-sectional view of part of the structure of the display panel shown along section line EE'. Figure 14 for Figure 12 A cross-sectional view of part of the structure of the display panel shown along section line FF'. Figure 15 This application provides a top view of a partial structure of a display panel; Figure 16 This application provides a top view of a partial structure of a display panel; Figure 17 for Figure 16 The diagram shows a partial cross-sectional view of the display panel along section line GG'. Figure 18 This application provides a top view of a partial structure of a display panel; Figure 19 This is a schematic diagram of a display device provided in this application. Detailed Implementation

[0015] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0016] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0017] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0018] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0019] Figure 1 This is a top view schematic diagram of a portion of the structure of a display panel in related technologies. Figure 2 for Figure 1 The diagram shows a cross-sectional view of a portion of the film layer in the display panel along section line AA'. For ease of understanding, Figure 1 The distribution of some pixels, light-transmitting holes, and other structures is shown from a top-down perspective. Figure 2 From a cross-sectional perspective Figure 1 The diagram illustrates the layered arrangement of some film layers in the display panel and the placement of the photosensitive devices.

[0020] In related technologies, combined Figure 1 and Figure 2 The existing display panel 10' includes a photosensitive area 01' and a conventional display area 02'. The photosensitive area 01' may have a light-transmitting hole 11', through which a photosensitive device 12' can receive ambient light, thereby achieving ambient light sensing. Conversely, the conventional display area 02' does not have a light-transmitting hole 11' or a photosensitive device 12', meaning the structure within the conventional display area 02' does not participate in ambient light sensing.

[0021] The photosensitive device 12' and the light-emitting device 13' do not overlap. The light-emitting device 13' may include a first color light-emitting device 131', a second color light-emitting device 132', and a third color light-emitting device 133'.

[0022] like Figure 2 As shown, the design of the light-transmitting hole 11' can typically be achieved by punching a hole in a portion of the film layer within the existing display panel 10'. For example, a hole can be punched in the portion of the film layer such as the light-shielding layer BM that overlaps with the photosensitive device 12'. Correspondingly, the film layer structure in the area where the light-transmitting hole 11' is located differs significantly from the film layer structure in other areas, and this difference can be reflected in the degree of light reflection.

[0023] Specifically, because the photosensitive area 01' has a light-transmitting hole 11', while the conventional display area 02' does not, there is a significant difference in the light reflectivity between the photosensitive area 01' and the conventional display area 02'. Particularly, in the screen-off display state, the difference in the degree of reflection of ambient light between the two areas is even more pronounced, and this phenomenon has a significant impact on the display effect. Experimental investigation revealed that, in the screen-off display state, when visible light is shone onto the existing display panel 10', the photosensitive area 01' with the light-transmitting hole 11' tends to exhibit a more yellowish-green hue compared to the conventional display area 02'.

[0024] Figure 3 This is a top view of a portion of the structure of the display panel provided in this application. Figure 4 for Figure 3 The diagram shows a partial cross-sectional view of the display panel along section line BB'. Figure 5A for Figure 4 An enlarged schematic diagram of the first opening group structure shown. Figure 5B for Figure 4 This is an enlarged schematic diagram of the second opening group structure shown. For ease of understanding, Figure 3 The image shows the distribution of some pixels, light-transmitting holes, and other structures from a top-down perspective, as well as the distribution of opening positions on the first and second pixel definition layers. Figure 4 From a cross-sectional perspective Figure 3 The diagram illustrates the layered arrangement of some film layers in the display panel and the placement of the photosensitive elements. Figure 5A against Figure 4 The magnified schematic diagram shows the membrane structure corresponding to the first opening group in the middle. Figure 5B against Figure 4 The enlarged schematic diagram shows the membrane structure corresponding to the second opening group in the middle.

[0025] In response to the above problems, such as Figure 3 As shown, this application provides a display panel 10, which includes a pixel 01 and a photosensitive hole 02, with the pixel 01 located in the display area 10a.

[0026] Pixel 01 can be an organic light-emitting diode (OLED).

[0027] Combination Figure 3 and Figure 4 The photosensitive hole 02 can be formed by punching a hole in the light-shielding layer f1, along the thickness direction of the display panel 10 (which can be...). Figure 4 In the longitudinal direction (Z), the photosensitive aperture 02 can overlap with the photosensitive device 03, so that external light can be transmitted through the photosensitive aperture 02 to the photosensitive device 03, thereby realizing the sensing function of ambient light conditions.

[0028] like Figure 3 As shown, the display area 10a includes a first region 101 and a second region 102. The photosensitive hole 02 is located in the second region 102 and does not overlap with the first region 101. Therefore, the perforation structure of the light-shielding layer f1, which serves as the photosensitive hole 02, can be considered to be distributed only in the second region 102. The light-shielding effect of the light-shielding layer f1 in the first region 101 may be different from the light-shielding effect of the light-shielding layer f1 in the second region 102. Specifically, the arrangement of the photosensitive hole 02 helps to increase the overall transmittance of the portion of the display panel 10 corresponding to the second region 102. To avoid a large transmittance difference between the first region 101 and the second region 102 without the photosensitive hole 02, a corresponding design is required to compensate for the transmittance difference between the two regions. The specific details of this corresponding design are detailed below.

[0029] The plurality of pixels 01 includes a first type of pixel 011 and a second type of pixel 012. The first type of pixel 011 is located in the first region 101, and the second type of pixel 012 is located in the second region 102.

[0030] like Figure 4 As shown, the display panel 10 also includes a substrate f0, a light-emitting layer f2, a first pixel definition layer f3, and a second pixel definition layer f4. The second pixel definition layer f4 is located on the side of the first pixel definition layer f3 away from the substrate f0. The light transmittance corresponding to the first pixel definition layer f3 is less than the light transmittance corresponding to the second pixel definition layer f4. The first pixel definition layer f3 may include a black material, meaning it can act as a light-blocking layer. It should be noted that the second pixel definition layer f4 can also act as a light-blocking layer, but the light-blocking effect of the first pixel definition layer f3 is stronger than that of the second pixel definition layer f4.

[0031] In addition, the display panel 10 may also include a first electrode f6, a second electrode f7, an encapsulation layer f8, a touch layer f9, and a planarization layer f10, the positional relationships of the aforementioned electrodes, film layers, etc. are as follows: Figure 4 As shown, it will not be elaborated further here.

[0032] Combination Figure 4 , Figure 5A and Figure 5B The first pixel definition layer f3 includes a first type of opening 31 penetrating the first pixel definition layer f3, and the second pixel definition layer f4 includes a second type of opening 41 penetrating the second pixel definition layer f4. The plurality of first type openings 31 include a first opening 311 and a second opening 312, and the plurality of second type openings 41 include a third opening 411 and a fourth opening 412, along the thickness direction of the display panel 10 (which can be...). Figure 4In the longitudinal direction Z), the first opening 311 overlaps with the third opening 411, and the second opening 312 overlaps with the fourth opening 412. When the two overlapping first-type openings 31 and second-type openings 41 correspond to different projected areas, that is, from a top-view perspective, the orthographic projection of one of the two overlapping openings on the substrate f0 can cover the orthographic projection of the other on the substrate f0. It should be noted that, considering the different light transmittances of the first pixel definition layer f3 and the second pixel definition layer f4, the design of one opening covering the other can affect the hue in that area.

[0033] For example, regarding two overlapping first-type openings 31 (which can be called lower openings) and second-type openings 41 (which can be called upper openings), when the orthographic projection of the lower opening onto the substrate f0 covers the orthographic projection of the upper opening onto the substrate f0 (the size of the lower opening is larger than the size of the upper opening), it can be considered that the second pixel definition layer f4 with higher light transmittance can cover the first pixel definition layer f3 with lower light transmittance, which is the first case. When the orthographic projection of the upper opening onto the substrate f0 covers the orthographic projection of the lower opening onto the substrate f0 (the size of the lower opening is smaller than the size of the upper opening), it can be considered that a portion of the first pixel definition layer f3 with lower light transmittance can be exposed within the upper opening, which is the second case. In the first and second cases, the different covering designs of the two pixel definition layers can lead to different overall transmittance in the region where the pixel is located. By utilizing the opening superposition design in the first and second cases, the transmittance of the region where the opening is located can be adjusted, which helps to compensate for the transmittance difference between the two regions caused by the design of the photosensitive aperture 02. For details of the design, please refer to the following text.

[0034] Combination Figure 3 , Figure 4 , Figure 5A and Figure 5B There exists a first opening group G1, which includes a first opening 311 and a third opening 411, which can overlap in the longitudinal direction Z. The projected area of ​​the first opening 311 on the substrate f0 is greater than the projected area of ​​the third opening 411 on the substrate f0, and the third opening 411 exposes at least a portion of the light-emitting layer f2.

[0035] In this design, the projection of the first opening 311 can cover the projection of the third opening 411, which can be considered as the area where the first opening group G1 is located. The second pixel definition layer f4 can cover the first pixel definition layer f3. Considering that the third opening 411 on the second pixel definition layer f4 exposes at least a portion of the light-emitting layer f2, the portion of the second pixel definition layer f4 that overlaps with the first opening 311 (which can refer to the portion of the second pixel definition layer f4 near the third opening 411) can participate in adjusting the light transmittance near the pixel corresponding to the light-emitting layer f2. Since the light transmittance of the second pixel definition layer f4 is relatively large, the overall light transmittance of the area corresponding to pixel 01 in the above-mentioned first opening group G1 design is relatively large.

[0036] Combination Figure 3 , Figure 4 , Figure 5A and Figure 5B There exists a second opening group G2, which includes a second opening 312 and a fourth opening 412, which can overlap in the longitudinal direction Z. The projected area of ​​the fourth opening 412 on the substrate f0 is larger than the projected area of ​​the second opening 312 on the substrate f0, and the second opening 312 exposes at least a portion of the light-emitting layer f2.

[0037] In this design, the projection of the fourth opening 412 can cover the projection of the second opening 312. This can be considered as the area where the second opening group G2 is located, and the fourth opening 412 on the second pixel definition layer f4 can expose a portion of the first pixel definition layer f3. Considering that the second opening 312 on the first pixel definition layer f3 exposes at least a portion of the light-emitting layer f2, the portion of the first pixel definition layer f3 that overlaps with the fourth opening 412 (which can refer to the portion of the first pixel definition layer f3 near the second opening 312) can participate in adjusting the light transmittance near the pixel corresponding to the light-emitting layer f2. Since the light transmittance of the first pixel definition layer f3 is relatively small, the overall light transmittance of the area corresponding to pixel 01 in the aforementioned second opening group G2 design is relatively small.

[0038] Among them, at least some of the first type of pixels 011 correspond to the first opening group G1, and the second type of pixels 012 correspond to the second opening group G2.

[0039] In this embodiment, since the arrangement of the photosensitive aperture 02 tends to cause the optical characteristics of the second region 102 to tilt towards a direction with higher overall light transmittance, this embodiment designs the second type of pixels 012 within the second region 102 to correspond to the second opening group G2. This utilizes the characteristic of the second opening group G2 to reduce the overall light transmittance of the region where the second type of pixels 012 are located, compensating for the influence of the photosensitive aperture 02 on the light transmittance within the second region 102. This helps to relatively reduce the overall light transmittance of the second region 102, decreasing the light transmittance difference between the first region 101 and the second region 102, thereby reducing or eliminating the hue difference between the two regions. Furthermore, in this embodiment, at least some of the first type of pixels 011 are also associated with the first opening group G1. This utilizes the characteristic of the first opening group G1 to increase the overall light transmittance of the region where the first type of pixels 011 are located, relatively increasing the overall light transmittance of the first region 101, reducing the light transmittance difference between the first region 101 and the second region 102, thereby reducing or eliminating the hue difference between the two regions.

[0040] Figure 6 This is a top view schematic diagram of a partial structure of a display panel provided in this application. Figure 7 for Figure 6 The diagram shows a partial cross-sectional view of the display panel along section line CC'. For ease of understanding, Figure 7 The cross-sectional view shows the structural configuration of the film layers, including the first pixel definition layer, the second pixel definition layer, and the light-emitting layer.

[0041] In some embodiments of this application, combined with Figure 6 and Figure 7 In the same first opening group G1, the distance between the projected edge of the first opening 311 on the substrate f0 and the projected edge of the third opening 411 on the substrate f0 is the inner and outer edge distance. The larger the inner and outer edge distance, the larger the projected area of ​​the portion overlapping the first opening 311 on the second pixel definition layer f4 (hereinafter referred to as the overlying portion). This means that within the range of the first opening group G1, the overlying portion has a better effect on improving the panel's light transmittance. In other words, the larger the inner and outer edge distance corresponding to the first type of pixel 011, the greater the overall light transmittance of the area where the first type of pixel 011 is located.

[0042] The plurality of first-class pixels 011 include a first pixel 111 and a second pixel 112. The distance between the inner and outer edges of the first opening group G1 corresponding to the first pixel 111 is L1, and the distance between the inner and outer edges of the first opening group G1 corresponding to the second pixel 112 is L2, where L1 > L2.

[0043] In this embodiment, L1 > L2 means that the overall light transmittance of the area where the first pixel 111 is located can be greater than the overall light transmittance of the area where the second pixel 112 is located. This design can achieve different light transmittances for the areas corresponding to different first-type pixels 011. When the different first-type pixels 011 correspond to different emission colors, the above design helps to selectively adjust the overall hue tendency of the first region 101 based on the emission color of the first-type pixels 011 and the adjustment effect of the inner and outer edge spacing L on light transmittance, thereby reducing the hue difference between the first region 101 and the second region 102.

[0044] In some embodiments of this application, combined with Figure 6 and Figure 7 The first pixel 111 emits green light, and the second pixel 112 emits red or blue light.

[0045] In this embodiment, when the emission color of the first pixel 111 is green, combined with the L1>L2 design described above, the light transmittance of the area where the first pixel 111 is located can be greater than that of the area where the second pixel 112 is located within the first region 101. This facilitates adjusting the overall hue of the first region 101 towards a yellowish-green. This design helps to reduce the difference between the overall hue of the first region 101 and the second region 102, weakens the visibility of the yellowish-green hue of the second region 102 caused by the setting of the photosensitive aperture 02, and improves the display effect.

[0046] Figure 8 This is a top view of a portion of the structure of the display panel provided in this application. Figure 9 This is a top view of a portion of the structure of the display panel provided in this application.

[0047] In some embodiments of this application, combined with Figure 8 and Figure 9 The first type of pixel 011 also includes a third pixel 113. The distance between the inner and outer edges of the first opening group G1 corresponding to the third pixel 113 is L3, and L2≥L3.

[0048] In one possible implementation, such as Figure 8 As shown, the inner and outer edge spacing L1 corresponding to the first pixel 111, the inner and outer edge spacing L2 corresponding to the second pixel 112, and the inner and outer edge spacing L3 corresponding to the third pixel 113 satisfy L1 > L2 > L3.

[0049] In one possible implementation, such as Figure 9As shown, the inner and outer edge spacing L1 corresponding to the first pixel 111, the inner and outer edge spacing L2 corresponding to the second pixel 112, and the inner and outer edge spacing L3 corresponding to the third pixel 113 satisfy L1 > L2 = L3.

[0050] The first pixel 111, the second pixel 112, and the third pixel 113 are respectively green, red, and blue.

[0051] In this embodiment, L1 > L2 > L3 means that the light transmittance of the area where the first pixel 111 is located can be greater than the light transmittance of the area where the second pixel 112 is located, and also greater than the light transmittance of the area where the third pixel 113 is located. This design helps to maximize the light transmittance of the area where the green pixel is located, which is beneficial for adjusting the hue of the first area 101 towards yellow-green. In addition, L3 is the smallest relative to L1 and L2, which means that the light transmittance of the area where the blue pixel is located can be minimized. This design can reduce the degree of hue tendency of the first area 101 towards blue-purple, and further reduce the hue difference between the two areas. On the other hand, L2 = L3 means that the inner and outer edge spacing of the red and blue pixels in the first area 101 is the same. This design helps to achieve that the opening group structure design (which can be reflected in the size of the upper and lower openings in the opening group) of more pixels 01 is the same or similar, thereby helping to reduce the overall manufacturing difficulty and manufacturing cost.

[0052] Figure 10 This is a top view of a portion of the structure of the display panel provided in this application. Figure 11 for Figure 10 The diagram shows a partial cross-sectional view of the display panel along section line DD'.

[0053] In some embodiments of this application, combined with Figure 10 and Figure 11 The plurality of first-class pixels 011 include first-subclass pixels 11a and second-subclass pixels 11b. The first-subclass pixels 11a correspond to the first opening group G1, and the second-subclass pixels 11b correspond to the second opening group G2.

[0054] The first sub-pixel 11a emits light in green or red, while the second sub-pixel 11b emits light in blue.

[0055] In this embodiment, for pixel 01 within the first region 101, there may be a pixel 01 corresponding to the first aperture group G1 (first sub-class pixel 11a), and there may also be a pixel 01 corresponding to the second aperture group G2 (second sub-class pixel 11b). Since the design of the first aperture group G1 is conducive to improving the light transmittance of its region, and the design of the second aperture group G2 is conducive to reducing the light transmittance of its region, this embodiment's design helps to enhance the influence of light emitted by the first sub-class pixel 11a on the hue of the first region 101, while reducing the influence of light emitted by the second sub-class pixel 11b on the hue of the first region 101. Therefore, this design helps to tilt the hue corresponding to the first region 101 towards yellow-green, while reducing the degree to which the hue corresponding to the first region 101 tilts towards blue-violet, thereby further reducing the hue difference between the two regions.

[0056] In some embodiments of this application, combined with Figure 10 and Figure 11 The plurality of first subclass pixels 11a include a first pixel 111 and a second pixel 112. The first pixel 111 emits green light, and the second pixel 112 emits red light. At this time, the green light emitted by the first pixel 111 is more helpful in adjusting the hue of the first region 101 towards yellow-green than that emitted by the second pixel 112.

[0057] In the same first opening group G1, the distance between the projection edge of the first opening 311 on the substrate f0 and the projection edge of the third opening 411 on the substrate f0 is the inner and outer edge distance.

[0058] Wherein, the distance between the inner and outer edges of the first opening group G1 corresponding to the first pixel 111 is L1, and the distance between the inner and outer edges of the first opening group G1 corresponding to the second pixel 112 is L2, where L1 > L2.

[0059] In this embodiment, L1 > L2 means that the light transmittance of the area where the first pixel 111 is located can be greater than the light transmittance of the area where the second pixel 112 is located, which is beneficial to fully utilize the effect of the green light generated by the first pixel 111 on the hue adjustment of the first region 101. That is, this embodiment is designed to further improve the hue adjustment effect of green light on the first region 101 while reducing the influence of blue light on the hue of the first region 101.

[0060] Figure 12 This is a top view schematic diagram of a partial structure of a display panel provided in this application. Figure 13 for Figure 12 The diagram shows a partial cross-sectional view of the display panel along section line EE'.

[0061] In some embodiments of this application, combined with Figure 12 and Figure 13There exists a first type of pixel 011 corresponding to the first opening group G1 and a second type of pixel 012 corresponding to the second opening group G2, and the two have the same color.

[0062] Specifically, the portion where the light-emitting layer f2 of the first type of pixel 011 overlaps with the third opening 411 in the thickness direction (vertical Z in the figure) of the display panel 10 is the first exposed portion 201, and the portion where the light-emitting layer f2 of the second type of pixel 012 overlaps with the second opening 312 in the thickness direction (vertical Z in the figure) of the display panel 10 is the second exposed portion 202. Considering that both the first pixel definition layer f3 and the second pixel definition layer f4 can define the position of the light-emitting layer f2 and the light-emitting area of ​​the pixel, the first exposed portion 201 and the second exposed portion 202 can be regarded as the effective light-emitting portions of the two types of pixels 01, respectively.

[0063] Along the first direction X, the orthogonal projection width w1 of the first exposed portion 201 on the substrate f0 is equal to the orthogonal projection width w2 of the second exposed portion 202 on the substrate f0, and the first direction X is parallel to the plane direction where the substrate f0 is located.

[0064] In this embodiment, the design of w1=w2 helps to make the projected area of ​​the first exposed portion 201 on the substrate f0 the same as the projected area of ​​the second exposed portion 202 on the substrate f0, thereby making the effective light-emitting area of ​​the first type of pixel 011 the same as the effective light-emitting area of ​​the second type of pixel 012, reducing the manufacturing difficulty.

[0065] In some embodiments of this application, combined with Figure 12 and Figure 13 The display panel 10 also includes a color resist layer f5, which is located on the side of the second pixel definition layer f4 away from the substrate f0. The color resist layer f5 allows light of the same color to be emitted from the display panel 10. The color resist layer f5 can include multiple portions of different colors. For a particular color portion, the larger its area, the greater the influence of that portion on the overall hue of the area containing it. For example, if the color resist layer f5 contains a green color resist portion, the larger the (projected) area of ​​the green color resist portion, the more the overall hue of the area on the display panel 10 corresponding to the green color resist portion can be relatively tilted towards yellow-green. Similarly, if the color resist layer f5 contains a blue color resist portion, the larger the (projected) area of ​​the blue color resist portion, the more the overall hue of the area on the display panel 10 corresponding to the blue color resist portion can be relatively tilted towards blue-violet.

[0066] The color resist layer f5 includes a first color resist portion 051 and a second color resist portion 052, and the first color resist portion 051 and the second color resist portion 052 can correspond to different pixels 01 respectively.

[0067] The first type of pixel 011 includes a third pixel 113, and the second type of pixel 012 includes a fourth pixel 114. The third pixel 113 and the fourth pixel 114 emit the same light color, which is blue. Based on the above principle, the fourth pixel 114 can correspond to the second opening group G2, and the third pixel 113 can correspond to the first opening group G1.

[0068] Along the thickness direction of the display panel 10 (vertical direction Z in the figure), the first color resist 051 covers the first exposed portion 201 of the third pixel 113, and the second color resist 052 covers the second exposed portion 202 of the fourth pixel 114. Since the light emission color of the third pixel 113 and the light emission color of the fourth pixel 114 are both blue, both the first color resist 051 and the second color resist 052 can correspond to blue.

[0069] Along the first direction X, the orthogonal projection width w4 of the second color resist 052 on the substrate f0 is greater than the orthogonal projection width w3 of the first color resist 051 on the substrate f0.

[0070] In this embodiment, the design of w4 > w3 helps to ensure that the projected area of ​​the second color resist 052 is larger than that of the first color resist 051. Correspondingly, in terms of the influence of the color resist on the overall hue of the panel, the second color resist 052 has a greater influence on the overall hue of the area where the third pixel 113 is located than the first color resist 051. That is, compared to the influence of the first color resist 051 on the overall hue of the first area 101, the second color resist 052 can guide the overall hue of the second area 102 towards blue-purple, and this effect is stronger than that of the first color resist 051. This design helps to further reduce the difference in hue between the two areas and is beneficial to improving the display effect.

[0071] Figure 14 for Figure 12 The diagram shows a cross-sectional view of a portion of the display panel structure along section line FF'.

[0072] In some embodiments of this application, combined with Figure 12 and Figure 14 The color resist layer f5 also includes a third color resist portion 053 and a fourth color resist portion 054.

[0073] The first type of pixel 011 also includes a second pixel 112, and the second type of pixel 012 also includes a fifth pixel 115. The second pixel 112 and the fifth pixel 115 are respectively associated with the same emission color, and both of them emit red light. Based on the above principle, the fifth pixel 115 can correspond to the second opening group G2, and the second pixel 112 can correspond to the first opening group G1.

[0074] Along the thickness direction of the display panel 10 (vertical direction Z in the figure), the third color resist 053 covers the first exposed portion 201 of the second pixel 112, and the fourth color resist 054 covers the second exposed portion 202 of the fifth pixel 115. Correspondingly, the color of both the fourth color resist 054 and the third color resist 053 can be red.

[0075] Along the first direction X, the orthogonal projection width w6 of the fourth color resist 054 on the substrate f0 is greater than the orthogonal projection width w5 of the third color resist 053 on the substrate f0. In this case, the design of w6 > w5 means that the projected area of ​​the fourth color resist 054 located in the second region 102 can be greater than the projected area of ​​the third color resist 053 located in the first region 101. Considering that the red color resist portion is beneficial for adjusting the hue of its region towards blue-violet, w6 > w5 can be seen as utilizing the larger projected area of ​​the fourth color resist 054 to relatively adjust the hue bias of the second region 102.

[0076] Among them, combined Figure 13 and Figure 14 The difference between the orthographic projection width w4 of the second color resist portion 052 on the substrate f0 and the orthographic projection width w3 of the first color resist portion 051 on the substrate f0 is ΔL1, and the difference between the orthographic projection width w6 of the fourth color resist portion 054 on the substrate f0 and the orthographic projection width w5 of the third color resist portion 053 on the substrate f0 is ΔL2, where ΔL1 > ΔL2. It should be noted that for different color resist portions distributed in the first region 101 and the second region 102 respectively and having the same color, the larger the difference ΔL in their orthographic projection widths, the stronger the color resist portion with a larger orthographic projection width in adjusting the panel's hue. The difference in their projection widths reflects the difference in their hue adjustment effects.

[0077] In this embodiment, the colors of the second color resist 052 and the first color resist 051 can both be blue, and the colors of the fourth color resist 054 and the third color resist 053 can both be red. From the perspective of adjusting the panel hue towards blue-violet, the blue color resist has a stronger adjustment effect. Therefore, the design where ΔL1 > ΔL2 means that, compared to using the fourth color resist 054 to adjust the hue of the second region 102, the adjustment effect of the second color resist 052 on the hue of the second region 102 is further strengthened, thereby further adjusting the hue of the second region 102 towards blue-violet, offsetting the hue change of the second region 102 caused by the design of the photosensitive aperture 02.

[0078] Figure 15 This is a top view schematic diagram of a partial structure of a display panel provided in this application.

[0079] In some embodiments of this application, such as Figure 15As shown, in the second region 102, the plurality of second type pixels 012 may include a fourth pixel 114, a fifth pixel 115, and a sixth pixel 116, whose light emission colors are blue, red, and green, respectively. The fourth pixel 114 overlaps with the second color resist 052 (blue color resist), and the fifth pixel 115 overlaps with the fourth color resist 054 (red color resist).

[0080] Both the second color resist portion 052 and the fourth color resist portion 054 have protrusions m, and the orthogonal projection of the protrusions m onto the substrate f0 can be located within the gap between some adjacent second-type pixels 012. This design is advantageous for adaptively expanding the coverage area of ​​some color resist portions according to the pixel arrangement, for example, increasing the area ratio of blue color resist and red color resist in the second region 102, thereby further improving the influence of the photosensitive aperture 02 setting on the hue of the second region 102.

[0081] Figure 16 This is a top view schematic diagram of a partial structure of a display panel provided in this application. Figure 17 for Figure 16 The diagram shows a partial cross-sectional view of the display panel along section line GG'.

[0082] In some embodiments of this application, combined with Figure 16 and Figure 17 The fourth pixel 114 and the fifth pixel 115 are adjacent to each other, and the second color resist portion 052 and the fourth color resist portion 054 overlap along the thickness direction of the display panel 10. Specifically, the second color resist portion 052 and the fourth color resist portion 054 may overlap at the overlap area S1.

[0083] In this embodiment, the second color resist 052 and the fourth color resist 054 overlap, meaning that two or more layers of color resists can be set at the overlapping area S1. Compared with designs without overlapping color resists, this embodiment design is advantageous in maximizing the coverage area of ​​some color resists within a limited setting space. In particular, this design can increase the coverage area ratio of blue color resist (second color resist 052) and red color resist (fourth color resist 054), which is beneficial to further enhance the effect of adjusting the hue of the first region 101 using color resists and reduce the hue difference between the two regions.

[0084] Figure 18 This is a top view schematic diagram of a partial structure of a display panel provided in this application.

[0085] In some embodiments of this application, such as Figure 18 As shown, the color resist layer f5 also includes a fifth color resist section 055 and an outer color resist section 056.

[0086] Along the thickness direction of the display panel 10, the fifth color resist 055 covers the second exposed portion 202 of the sixth pixel 116, the sixth pixel 116 is located in the second region 102 and the emission color of the sixth pixel 116 is green. At this time, the color of the fifth color resist 055 can be green.

[0087] The outer color resist section 056 covers at least a portion of the second region 102, excluding the photosensitive hole 02, the fourth color resist section 054, and the fifth color resist section 055.

[0088] The outer color resist 056 is blue. Specifically, the outer color resist 056 and the second color resist 052 can be connected to form an integrated structure.

[0089] In this embodiment, the outer color resist portion 056 can be considered to cover most of the area in the second region 102. Compared to the area proportions of the fourth color resist portion 054 and the fifth color resist portion 055 in the second region 102, the outer color resist portion 056 has the largest area proportion in the second region 102. This design helps to maximize the influence of the outer color resist portion 056 (blue color resist) on the overall hue of the second region 102, thereby offsetting the hue variation caused by the design of the photosensitive aperture 02 and further reducing the hue difference between the two regions.

[0090] Figure 19 This is a schematic diagram of a display device provided in this application.

[0091] This application provides a display device 20, such as... Figure 19 As shown, the display device 20 includes the aforementioned display panel 10. The display device 20 can be a mobile phone, or it can also be an electronic device such as a computer or television.

[0092] The display device 20 provided in this application embodiment has a small color difference between different areas in the screen-off display state, and the display effect is significantly improved.

[0093] The same or similar parts between the various embodiments in this specification can be referred to mutually. In particular, the device embodiments and terminal embodiments are basically similar to the method embodiments, so the description is relatively simple, and the relevant parts can be referred to the description in the method embodiments.

Claims

1. A display panel, characterized in that, The device includes pixels and a photosensitive aperture, wherein the pixels are located in a display area; the display area includes a first region and a second region, wherein the photosensitive aperture is located in the second region and does not overlap with the first region; the plurality of pixels includes a first type of pixel and a second type of pixel, wherein the first type of pixel is located in the first region and the second type of pixel is located in the second region; The display panel further includes a substrate, a light-emitting layer, a first pixel definition layer, and a second pixel definition layer, wherein the second pixel definition layer is located on the side of the first pixel definition layer away from the substrate; the light transmittance corresponding to the first pixel definition layer is less than the light transmittance corresponding to the second pixel definition layer; The first pixel definition layer includes a first type of opening that penetrates the first pixel definition layer, and the second pixel definition layer includes a second type of opening that penetrates the second pixel definition layer; The plurality of first-type openings includes a first opening and a second opening, and the plurality of second-type openings includes a third opening and a fourth opening; Along the thickness direction of the display panel, the first opening overlaps with the third opening, and the second opening overlaps with the fourth opening; There is a first opening group, which includes the first opening and the third opening; the projected area of ​​the first opening on the substrate is greater than the projected area of ​​the third opening on the substrate, and the third opening exposes at least a portion of the light-emitting layer; There is a second group of openings, which includes the second opening and the fourth opening; the projected area of ​​the fourth opening on the substrate is larger than the projected area of ​​the second opening on the substrate, and the second opening exposes at least a portion of the light-emitting layer; Wherein, at least a portion of the first type of pixels corresponds to the first aperture group; and the second type of pixels corresponds to the second aperture group.

2. The display panel according to claim 1, characterized in that, In the same first opening group, the distance between the projected edge of the first opening on the substrate and the projected edge of the third opening on the substrate is the inner and outer edge distance; The plurality of first type pixels includes a first pixel and a second pixel. The distance between the inner and outer edges of the first opening group corresponding to the first pixel is L1, and the distance between the inner and outer edges of the first opening group corresponding to the second pixel is L2, where L1 > L2.

3. The display panel according to claim 2, characterized in that, The first pixel emits green light, and the second pixel emits red or blue light.

4. The display panel according to claim 2, characterized in that, The plurality of first type pixels also includes a third pixel, and the distance between the inner and outer edges of the first opening group corresponding to the third pixel is L3, where L2≥L3; The first pixel, the second pixel, and the third pixel correspond to green, red, and blue light colors, respectively.

5. The display panel according to claim 1, characterized in that, The plurality of first-class pixels include first-subclass pixels and second-subclass pixels, wherein the first-subclass pixels correspond to the first aperture group and the second-subclass pixels correspond to the second aperture group; The first sub-class pixel emits light in green or red, while the second sub-class pixel emits light in blue.

6. The display panel according to claim 5, characterized in that, The plurality of first subclass pixels includes a first pixel and a second pixel, wherein the first pixel emits green light and the second pixel emits red light; In the same first opening group, the distance between the projected edge of the first opening on the substrate and the projected edge of the third opening on the substrate is the inner and outer edge distance; Wherein, the distance between the inner and outer edges of the first opening group corresponding to the first pixel is L1, and the distance between the inner and outer edges of the first opening group corresponding to the second pixel is L2, where L1 > L2.

7. The display panel according to claim 1, characterized in that, There exist first-type pixels corresponding to the first opening group and second-type pixels corresponding to the second opening group, and the two have the same color; Wherein, the portion of the light-emitting layer of the first type of pixel that overlaps with the third opening in the thickness direction of the display panel is the first exposed portion, and the portion of the light-emitting layer of the second type of pixel that overlaps with the second opening in the thickness direction of the display panel is the second exposed portion; Along the first direction, the orthographic projection width of the first exposed portion on the substrate is equal to the orthographic projection width of the second exposed portion on the substrate; the first direction is parallel to the plane in which the substrate is located.

8. The display panel according to claim 7, characterized in that, The display panel further includes a color resist layer, which is located on the side of the second pixel definition layer away from the substrate; the color resist layer includes a first color resist portion and a second color resist portion; The first type of pixels includes a third pixel, and the second type of pixels includes a fourth pixel; the third pixel and the fourth pixel have the same emission color, and both of them emit blue light. Wherein, along the thickness direction of the display panel, the first color resist portion covers the first exposed portion of the third pixel, and the second color resist portion covers the second exposed portion of the fourth pixel; along the first direction, the orthographic projection width of the second color resist portion on the substrate is greater than the orthographic projection width of the first color resist portion on the substrate.

9. The display panel according to claim 8, characterized in that, The color resist layer further includes a third color resist portion and a fourth color resist portion; The first type of pixels also includes a second pixel, and the second type of pixels also includes a fifth pixel; the second pixel and the fifth pixel have the same emission color, and both of them emit red light. Along the thickness direction of the display panel, the third color resist portion covers the first exposed portion of the second pixel, and the fourth color resist portion covers the second exposed portion of the fifth pixel; along the first direction, the orthographic projection width of the fourth color resist portion on the substrate is greater than the orthographic projection width of the third color resist portion on the substrate. Wherein, the difference between the orthogonal projection width of the second color resist on the substrate and the orthogonal projection width of the first color resist on the substrate is ΔL1, and the difference between the orthogonal projection width of the fourth color resist on the substrate and the orthogonal projection width of the third color resist on the substrate is ΔL2, where ΔL1 > ΔL2.

10. The display panel according to claim 9, characterized in that, The fourth pixel is adjacent to the fifth pixel, and the second color resist portion overlaps with the fourth color resist portion along the thickness direction of the display panel.

11. The display panel according to claim 9, characterized in that, The color resist layer further includes a fifth color resist portion and an outer color resist portion; along the thickness direction of the display panel, the fifth color resist portion covers the second exposed portion of the sixth pixel, the sixth pixel is located in the second region and the color of the sixth pixel is green; the outer color resist portion covers at least a portion of the second region excluding the photosensitive hole, the fourth color resist portion and the fifth color resist portion; The outer region color resist is blue.

12. A display device, characterized in that, Includes the display panel as described in any one of claims 1-11.

Images