Display panel and display device

Abstract

This invention discloses a display panel and a display device. The display panel includes: a substrate; a pixel definition layer including a pixel definition structure and a plurality of first openings and second openings; a display function layer including light-emitting units; a first light-shielding layer including a light-shielding structure and a third opening and a fourth opening, wherein the third opening and the first opening at least partially overlap along a direction perpendicular to the plane of the substrate, and the fourth opening and the second opening located in the light-transmitting display area at least partially overlap; and a color resist layer, wherein among color resists of the same color, the orthogonal projection area of ​​the color resist located in the first display area on the substrate is a first area, the orthogonal projection area of ​​the color resist located in the transition display area on the substrate is a second area, and the orthogonal projection area of ​​the color resist located in the light-transmitting display area on the substrate is a third area, wherein the first area is greater than or equal to the second area, and the second area is greater than or equal to the third area. This reduces the display difference between the first display area and the second display area, improving the user experience.

Description

Technical Field

[0001] This invention belongs to the field of electronic product technology, and particularly relates to a display panel and display device. Background Technology

[0002] With the advancement of technology, digital display panels such as those used in smartphones and tablets are widely used, and the display screen is an indispensable human-computer interaction interface in these panels. OLED (Organic Light Emitting Diode) display panels, for example, have advantages such as self-illumination, energy saving, flexibility, and good adaptability. Furthermore, these display panels do not require a backlight and feature fast response times and excellent display effects, attracting user attention and being widely used in smartphones, tablets, and other terminal products.

[0003] However, due to the structural limitations of existing display panels, the display effect of the display panels cannot meet the requirements.

[0004] Therefore, there is an urgent need for a new display panel and display device. Summary of the Invention

[0005] This invention provides a display panel and display device. By limiting the difference in the setting areas of the second opening and the fourth opening, as well as the color resist area limitation of each area, the display difference between the first display area and the second display area is reduced, the second display area is prevented from standing out, and the uniformity of the black state of the display panel is better, thus improving the user experience.

[0006] In a first aspect, embodiments of the present invention provide a display panel, including a first display area and a second display area, the first display area surrounding at least a portion of the second display area, the second display area including a transition display area and a light-transmitting display area, the transition display area being located between the light-transmitting display area and the first display area; the display panel includes: a substrate; a pixel definition layer disposed on one side of the substrate, the pixel definition layer including pixel definition structures and a plurality of first openings and second openings spaced apart by the pixel definition structures, the first openings being located in the first display area and the second display area, the second openings being located in the light-transmitting display area; a display function layer, the display function layer including light-emitting units, the light-emitting units being at least partially located within the first openings; a first light-shielding layer disposed on the side of the pixel definition layer opposite to the substrate, the first light-shielding layer including a light-shielding structure and a plurality of third openings spaced apart by the light-shielding structure and The fourth opening, wherein the third opening is located in the first display area and the second display area, and the fourth opening is located in the transition display area and the light-transmitting display area, and the third opening and the first opening at least partially overlap in a direction perpendicular to the plane of the substrate, and the fourth opening and the second opening in the light-transmitting display area at least partially overlap; a color resist layer, the color resist layer comprising a plurality of color resists, the color resists at least partially located within the third opening, wherein among the color resists of the same color, the orthographic projection area of ​​the color resist located in the first display area on the substrate is a first area, the orthographic projection area of ​​the color resist located in the transition display area on the substrate is a second area, and the orthographic projection area of ​​the color resist located in the light-transmitting display area on the substrate is a third area, the first area is greater than or equal to the second area, and the second area is greater than or equal to the third area.

[0007] Secondly, embodiments of the present invention provide a display device, comprising: a display panel, wherein the display panel is the display panel in any of the above embodiments; and an optical element, wherein a light-transmitting display area corresponding to the display panel is provided.

[0008] Compared with related technologies, the display panel provided in this embodiment of the invention includes a substrate, a pixel definition layer, a display function layer, a first light-shielding layer, and a color resist layer. The pixel definition layer includes a first opening and a second opening. The first opening is used to set a light-emitting unit and limit the light emission of the light-emitting unit. The second opening is located in the light-transmitting display area to improve the light transmittance of the light-transmitting display area. The pixel definition layer does not have an opening in the transition display area. The first light-shielding layer has a third opening in the first and second display areas and a fourth opening in the transition display area and the light-transmitting display area. Along a direction perpendicular to the plane of the substrate, the third opening and the first opening at least partially overlap so that the light emitted by the light-emitting unit can be emitted from the third opening. The fourth opening is provided to improve the light transmittance of the display panel in the transition display area and the light-transmitting display area. This embodiment of the invention provides both a fourth opening and a second opening in the light-transmitting display area to improve light transmittance. In the transition display area between the light-transmitting display area and the first display area, only the fourth opening for improving light transmittance is provided. No openings for improving light transmittance are provided in the pixel definition layer and the first light-shielding layer of the first display area. This reduces the difference in light transmittance between the first display area, the transition display area, and the light-transmitting display area, thus improving the display effect. Simultaneously, this embodiment limits the relationship between the projected areas of the color resist in the first display area, the transition display area, and the light-transmitting display area—that is, the first area is greater than or equal to the second area, and the second area is greater than or equal to the third area—to ensure that the proportions of the color resist area in the first and second display areas are similar, resulting in closer hues. This avoids excessive hue deviation between the first and second display areas, which could negatively impact the user experience. In summary, this embodiment reduces the display difference between the first and second display areas by limiting the differences in the placement areas of the second and fourth openings and by limiting the color resist area in each area, preventing the second display area from standing out, and improving the uniformity of the black state of the display panel, thereby improving the user experience. Attached Figure Description

[0009] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the structure of a display panel according to an embodiment of the present invention;

[0011] Figure 2 This is a schematic diagram of the structure of the first display area provided in one embodiment of the present invention;

[0012] Figure 3 This is provided by another embodiment of the present invention. Figure 2 Schematic diagram of the cross section at point BB;

[0013] Figure 4 This is a schematic diagram of the structure of a transition display area provided in one embodiment of the present invention;

[0014] Figure 5 This is provided by another embodiment of the present invention. Figure 4 Cross-sectional view at point CC;

[0015] Figure 6 This is a schematic diagram of the structure of a light-transmitting display area provided in one embodiment of the present invention;

[0016] Figure 7 This is provided by another embodiment of the present invention. Figure 6 Schematic diagram of the cross section at point DD;

[0017] Figure 8 This is a schematic diagram of the structure of a display panel according to another embodiment of the present invention;

[0018] Figure 9 This is a schematic diagram of the structure of the transition display area provided in another embodiment of the present invention;

[0019] Figure 10 This is provided by another embodiment of the present invention. Figure 9 Schematic diagram of the cross section at the middle EE;

[0020] Figure 11 This is a schematic diagram of the boundary region provided according to an embodiment of the present invention;

[0021] Figure 12 This is a schematic diagram of the boundary region provided according to another embodiment of the present invention;

[0022] Figure 13 This is a schematic diagram of the structure of a display device provided according to an embodiment of the present invention. Detailed Implementation

[0023] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0025] To better understand this invention, the following is combined with... Figures 1 to 13 The display panel and display device according to embodiments of the present invention will be described in detail.

[0026] Please refer to the following: Figures 1 to 7 , Figure 1 This is a schematic diagram of the structure of a display panel according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the first display area provided in one embodiment of the present invention; Figure 3 This is provided by another embodiment of the present invention. Figure 2 Schematic diagram of the cross section at point BB; Figure 4 This is a schematic diagram of the structure of a transition display area provided in one embodiment of the present invention; Figure 5 This is provided by another embodiment of the present invention. Figure 4 Cross-sectional view at point CC; Figure 6 This is a schematic diagram of the structure of a light-transmitting display area provided in one embodiment of the present invention; Figure 7 This is provided by another embodiment of the present invention. Figure 6 A cross-sectional view at point DD.

[0027] In the prior art, display panels typically have a light-transmitting display area with high light transmittance for setting optical components. Due to the design differences between the light-transmitting display area and the first display area, the display effects of the light-transmitting display area and the first display area are significantly different, affecting the performance of the display panel and the user experience.

[0028] To address the aforementioned issues, the display panel provided in this embodiment of the invention reduces the display difference between the first display area and the second display area by limiting the difference in the setting areas of the second and fourth openings and limiting the color resist area of ​​each area, thereby preventing the second display area from standing out. Furthermore, the display panel exhibits better uniformity in black states, thus improving the user experience.

[0029] This invention provides a display panel including a first display area AA1 and a second display area AA2. The first display area AA1 surrounds at least a portion of the second display area AA2. The second display area AA2 includes a transition display area GA and a light-transmitting display area TA. The transition display area GA is located between the light-transmitting display area TA and the first display area AA1. Figure 1 As shown; the display panel includes: a substrate 1; a pixel definition layer 2, disposed on one side of the substrate 1, the pixel definition layer 2 including a pixel definition structure 21 and a plurality of first openings K1 and second openings K2 spaced apart by the pixel definition structure 21, the first openings K1 being located in the first display area AA1 and the second display area AA2, and the second openings K2 being located in the light-transmitting display area TA; a display function layer 3, the display function layer 3 including a light-emitting unit 31, the light-emitting unit 31 being at least partially located within the first opening K1; a first light-shielding layer 4, disposed on the side of the pixel definition layer 2 away from the substrate 1, the first light-shielding layer 4 including a light-shielding structure 41 and a plurality of third openings K3 and fourth openings K4 spaced apart by the light-shielding structure 41, the third openings K3 being located in the first display area AA1 and the second display area AA2, and the fourth openings K4 being located in the transition display area GA and the light-transmitting display area TA, as shown. Figures 4 to 7 As shown, along the direction Y perpendicular to the plane where the substrate 1 is located, the third opening K3 and the first opening K1 at least partially overlap, and the fourth opening K4 and the second opening K2 located in the light-transmitting display area TA at least partially overlap; the color resist layer 55 includes a plurality of color resists 51, and the color resists 51 are at least partially located in the third opening K3. Among the color resists 51 of the same color, the orthographic projection area of ​​the color resist 51 located in the first display area AA1 on the substrate 1 is the first area, the orthographic projection area of ​​the color resist 51 located in the transition display area GA on the substrate 1 is the second area, and the orthographic projection area of ​​the color resist 51 located in the light-transmitting display area TA on the substrate 1 is the third area. The first area is greater than or equal to the second area, and the second area is greater than or equal to the third area.

[0030] The display panel provided in this embodiment of the invention includes a substrate 1, a pixel definition layer 2, a display function layer 3, a first light-shielding layer 4, and a color resist layer 55. The pixel definition layer 2 includes a first opening K1 and a second opening K2. The first opening K1 is used to set the light-emitting unit 31 and limit the light emission of the light-emitting unit 31. The second opening K2 is located in the light-transmitting display area TA to improve the light transmittance of the light-transmitting display area TA. The pixel definition layer 2 does not have an opening in the transition display area GA. The first light-shielding layer 4 has a third opening K3 in the first display area AA1 and the second display area AA2, and a fourth opening K4 in the transition display area GA and the light-transmitting display area TA. Along the direction Y perpendicular to the plane where the substrate 1 is located, the third opening K3 and the first opening K1 at least partially overlap so that the light emitted by the light-emitting unit 31 can be emitted from the third opening K3, and the fourth opening K4 is provided to improve the light transmittance of the display panel in the transition display area GA and the light-transmitting display area TA.

[0031] like Figure 6 and Figure 7 As shown, in this embodiment of the invention, the light-transmitting display area TA is provided with a fourth opening K4 and a second opening K2 for improving light transmittance. The transition display area GA between the light-transmitting display area TA and the first display area AA1 is only provided with the fourth opening K4 for improving light transmittance. However, no openings for improving light transmittance are provided in the pixel definition layer 2 and the first light-shielding layer 4 of the first display area AA1, so as to reduce the difference in light transmittance between the first display area AA1, the transition display area GA, and the light-transmitting display area TA, and improve the display effect.

[0032] Meanwhile, this embodiment limits the orthographic projection area relationship of the color resist 51 in the first display area AA1, the transition display area GA, and the light-transmitting display area TA, i.e., the first area is greater than or equal to the second area, and the second area is greater than or equal to the third area, so that the area ratio of the color resist 51 in the first display area AA1 and the second display area AA2 is similar, thus the hue is closer, avoiding the user experience being affected by the excessive hue deviation between the first display area AA1 and the second display area AA2. In summary, this embodiment reduces the display difference between the first display area AA1 and the second display area AA2 by limiting the setting area difference of the second opening K2 and the fourth opening K4 and limiting the area of ​​the color resist 51 in each area, preventing the second display area AA2 from standing out, and improving the uniformity of the black state of the display panel, thereby improving the user experience.

[0033] The first display area AA1 surrounds at least part of the second display area AA2, which includes a transition display area GA and a light-transmitting display area TA. The light-transmitting display area TA can be used to set up optical components with high light transmittance, such as cameras, fingerprint recognition components, and face recognition components.

[0034] In this embodiment, along the direction Y perpendicular to the plane of substrate 1, the third opening K3 and the first opening K1 at least partially overlap. This means that the orthographic projections of the third opening K3 and the first opening K1 on substrate 1 partially overlap. The orthographic projection area of ​​the third opening K3 on substrate 1 can be greater than, equal to, or equal to the orthographic projection area of ​​the first opening K1 on substrate 1, as long as the light emitted by the light-emitting unit 31 can be emitted normally through the third opening K3 and the first opening K1. Optionally, the orthographic projection of the third opening K3 on substrate 1 covers the orthographic projection of the first opening K1 on substrate 1 to ensure the light emission effect of the light-emitting unit 31. The direction of the plane of substrate 1 is X.

[0035] The fourth opening K4 and the second opening K2 located in the light-transmitting display area TA overlap at least partially. The film layer at the overlap of the fourth opening K4 and the second opening K2 is less and has higher light transmittance, so as to further improve the light transmittance of the light-transmitting display area TA.

[0036] It should be noted that the first area is greater than or equal to the second area, and the second area is greater than or equal to the third area. That is, the first area, the second area, and the third area can be equal, meaning that the color resist 51 of the first display area AA1, the transition display area GA, and the light-transmitting display area TA have the same size. Alternatively, the first area can be greater than the second area, and the second area can be equal to the third area. That is, the color resist 51 of the transition display area GA and the light-transmitting display area TA have the same size. The color resist 51 of the transition display area GA and the light-transmitting display area TA can adopt the same design, that is, the shape and size are the same. The color resist 51 of the first display area AA1 is greater than the color resist 51 of the transition display area GA and the light-transmitting display area TA to reduce the hue difference between the transition display area GA and the light-transmitting display area TA.

[0037] Alternatively, the first area can be greater than or equal to the second area, and the second area can be greater than the third area. That is, the color resist 51 of the transition display area GA and the first display area AA1 are the same size. The color resist 51 of the transition display area GA and the first display area AA1 can adopt the same design, that is, the shape and size are the same. The color resist 51 of the transition display area GA is greater than the color resist 51 of the transition display area GA, so as to reduce the hue difference between the transition display area GA and the first display area AA1.

[0038] Optionally, substrate 1 may include a substrate and an array layer, the array layer including a driving circuit. For example, the array layer may include a first conductive layer, a second conductive layer, and a third conductive layer disposed on one side of the substrate and stacked thereon. An insulating layer is disposed between adjacent conductive film layers. Exemplarily, the pixel driving circuit disposed on the array layer includes a transistor and a storage capacitor C. The transistor includes an active layer J, a gate G, a source S, and a drain D. The storage capacitor includes a first electrode and a second electrode. As an example, the gate G and the first electrode may be located on the first conductive layer, the second electrode may be located on the second conductive layer, and the source S and drain D may be located on the third conductive layer.

[0039] Optionally, the display functional layer 3 includes a first electrode layer, a light-emitting layer, and a second electrode layer stacked along a direction away from the substrate 1. Optionally, the light-emitting layer includes one or more of the following: an electron injection layer, an electron transport layer, a light-emitting material layer, a hole blocking layer, an electron blocking layer, a hole transport layer, and a hole injection layer. The specific type of light-emitting layer can be selected based on its specific characteristics and is not particularly limited. The electron injection layer, electron transport layer, and hole blocking layer can be disposed between the second electrode layer and the light-emitting material layer. The electron blocking layer, hole transport layer, and hole injection layer can be disposed between the first electrode layer and the light-emitting material layer.

[0040] The material of the first electrode layer is generally a material with a high work function to improve hole injection efficiency. It can be gold (Au), platinum (Pt), titanium (Ti), silver (Ag), indium tin oxide (ITO), zinc tin oxide (IZO), or a transparent conductive polymer (such as polyaniline). For example, the first electrode layer can be made of an ITO-Ag-ITO composite material, without any particular limitation.

[0041] The material of the second electrode layer can be one of the following metals: silver (Ag), aluminum (Al), lithium (Li), magnesium (Mg), ytterbium (Yb), calcium (Ca), or indium (In). It can also be an alloy of the aforementioned metals, such as magnesium-silver alloy (Mg / Ag) or lithium-aluminum alloy (Li / Al). This embodiment does not limit the material in this regard.

[0042] In some optional embodiments, the absolute value of the difference between the first area and the second area is less than or equal to a preset difference, the absolute value of the difference between the second area and the third area is less than or equal to a preset difference, and the preset difference is less than or equal to 5% of the first area.

[0043] It is understandable that the greater the difference between the first area and the second area, the greater the difference in the size of the corresponding color resist 51, and the greater the display difference. Therefore, it is necessary to limit the difference between the first area, the second area and the third area. Through the inventor's research, it was found that when the absolute value of the difference between the first area and the second area is less than or equal to a preset difference, and the preset difference is less than or equal to 5% of the first area, the hue difference between the first display area AA1 and the transition display area GA is small.

[0044] like Figure 2 and Figure 4 As shown, optionally, when the preset difference is equal to 0, that is, the corresponding first area and second area are equal, the color resist 51 of the transition display area GA and the first display area AA1 can adopt the same design, that is, the shape and size are the same.

[0045] Similarly, when the absolute value of the difference between the second area and the third area is less than or equal to the preset difference, and the preset difference is less than or equal to 5% of the first area, the hue difference between the light-transmitting display area TA and the transition display area GA is small.

[0046] Of course, in order to make the first display area AA1, the transition display area GA, and the light-transmitting display area TA transition evenly and reduce display differences, the absolute value of the difference between the first area and the second area can be equal to the absolute value of the difference between the second area and the third area. For example, the absolute value of the difference between the first area and the second area is equal to 5%, and the absolute value of the difference between the second area and the third area is also equal to 5%, so as to reduce the display differences between the first display area AA1, the transition display area GA, and the light-transmitting display area TA.

[0047] Optionally, the preset difference can be equal to any one of 0%, 1%, 2%, 3%, 4%, or 5%.

[0048] like Figure 6 As shown, in some optional embodiments, the edge of the orthographic projection pattern of the color resist 51 located in the light-transmitting display area TA on the substrate 1 has a first notch Q1.

[0049] It should be noted that the purpose of setting the first notch Q1 is, on the one hand, to adjust the orthogonal projection area of ​​the color resist 51 located in the light-transmitting display area TA on the substrate 1. The larger the first notch Q1 is, the smaller the orthogonal projection area of ​​the color resist 51 located in the light-transmitting display area TA on the substrate 1 is, and the smaller the first notch Q1 is, the larger the orthogonal projection area of ​​the color resist 51 located in the light-transmitting display area TA is on the substrate 1. On the other hand, when the color resist 51 and the first light-shielding layer 4 are set in the same layer, the first notch Q1 can also be set to avoid the fourth opening K4 of the first light-shielding layer 4 in the light-transmitting display area TA, so as to leave space for the setting of the fourth opening K4.

[0050] Optionally, the first notch Q1 and the fourth opening K4 are arranged opposite to each other along a direction parallel to the plane of the substrate 1. Specifically, the shape of the first notch Q1 can match the shape of the fourth opening K4 so that the fourth opening K4 can partially extend into the first notch Q1, thereby utilizing the space of the first notch Q1 to set the fourth opening K4. While setting the fourth opening K4 to improve light transmittance, the size adjustment of the color resist 51 located in the light-transmitting display area TA is realized.

[0051] Optionally, along a direction parallel to the plane of substrate 1, the opposite sides of the first notch Q1 and the opposite fourth opening K4 are parallel to each other to reduce the distance between the first notch Q1 and the opposite fourth opening K4 and improve space utilization. Optionally, the orthographic projection of the first notch Q1 on substrate 1 can be a rectangle, rhombus, pentagon, hexagon, or other polygon or curved shape. Correspondingly, the orthographic projection of the fourth opening K4 on substrate 1 can also be a rectangle, rhombus, pentagon, hexagon, or other polygon or curved shape. The specific settings can be made according to actual needs and there are no special limitations.

[0052] Please see Figures 8 to 10 , Figure 8 This is a schematic diagram of the structure of a display panel according to another embodiment of the present invention; Figure 9 This is a schematic diagram of the transition display area GA provided in another embodiment of the present invention; Figure 10 This is provided by another embodiment of the present invention. Figure 4 A cross-sectional view of the EE section.

[0053] In some optional embodiments, the transition display area GA includes a first transition area GA1 and a second transition area GA2 disposed adjacent to each other, with the first transition area GA1 disposed closer to the light-transmitting display area TA relative to the second transition area GA2; among the color resists 51 of the same color, the orthogonal projection area of ​​the color resist 51 located in the first transition area GA1 on the substrate 1 is smaller than the orthogonal projection area of ​​the color resist 51 located in the second transition area GA2 on the substrate 1.

[0054] In this embodiment, the first area can be limited to be larger than the orthogonal projection area of ​​the color resist 51 in the second transition region GA2 on the substrate 1, while the orthogonal projection area of ​​the color resist 51 in the first transition region GA1 on the substrate 1 is smaller than the third area, so that the orthogonal projection area of ​​the color resist 51 in the first display region AA1, the second transition region GA2, the first transition region GA1, and the light-transmitting display region TA on the substrate 1 decreases sequentially, thereby reducing the hue difference between the first display region AA1, the second transition region GA2, the first transition region GA1, and the light-transmitting display region TA.

[0055] Please see Figure 6 and Figure 9Alternatively, the color resists 51 of the same color can be limited. The orthographic projection patterns of the color resist 51 located in the first transition region GA1 and the orthographic projection areas of the color resist 51 located in the light-transmitting display region TA on the substrate 1 are equal. Since the first transition region GA1 is located close to the light-transmitting display region TA, limiting the size and shape of the color resist 51 in the first transition region GA1 and the color resist 51 in the light-transmitting display region TA to be the same can reduce the hue difference between the first transition region GA1 and the light-transmitting display region TA. Optionally, the orthographic projection patterns of the color resist 51 located in the first transition region GA1 and the color resist 51 located in the light-transmitting display region TA on the substrate 1 are the same, that is, the size and shape of the color resist 51 in the first transition region GA1 and the color resist 51 in the light-transmitting display region TA are the same, to further reduce the display difference between the first transition region GA1 and the light-transmitting display region TA.

[0056] Please see Figure 2 and Figure 4 The orthographic projection pattern of the color resist 51 located in the second transition region GA2 on the substrate 1 is the same as that of the color resist 51 located in the first display region AA1 on the substrate 1, and their orthographic projection areas are equal. Similarly, since the second transition region GA2 is located close to the first display region AA1, the hue difference between the second transition region GA2 and the first display region AA1 can be reduced by limiting the size and shape of the color resist 51 located in the second transition region GA2 and the color resist 51 located in the first display region AA1 to be the same. That is, the size and shape of the color resist 51 located in the second transition region GA2 and the color resist 51 located in the first display region AA1 are the same, so as to further reduce the display difference between the second transition region GA2 and the first display region AA1.

[0057] Please see Figure 4 and Figure 6 In some optional embodiments, the orthographic projection pattern of the fourth opening K4 located in the light-transmitting display area TA on the substrate 1 is the same as the orthographic projection pattern of the fourth opening K4 located in the transition display area GA on the substrate 1, and the orthographic projection areas are equal.

[0058] It should be noted that in this embodiment, the fourth opening K4 located in the light-transmitting display area TA and the fourth opening K4 located in the transition display area GA are exactly the same to ensure that the corresponding light transmission effect is the same, thereby reducing the difference in light transmittance between the light-transmitting display area TA and the transition display area GA. The orthographic projection pattern of the fourth opening K4 on the substrate 1 can be a polygon or curved shape such as a rectangle, rhombus, pentagon, or hexagon. The fourth opening K4 located in the light-transmitting display area TA and the fourth opening K4 located in the transition display area GA can be formed together by photolithography, laser etching and other processes to reduce the number of processes and reduce production costs.

[0059] Please see Figure 4 , Figure 9 , Figure 11 and Figure 12 , Figure 11 This is a schematic diagram of the boundary region ZA provided according to an embodiment of the present invention; Figure 12 This is a schematic diagram of the boundary region ZA according to another embodiment of the present invention. In some optional embodiments, the display panel further includes a boundary region ZA located between the first transition region GA1 and the second transition region GA2; along the extending direction of the boundary region ZA, the boundary region ZA includes alternately arranged first sub-regions ZA1 and second sub-regions ZA2; within the first sub-regions ZA1 and ZA2, there is a first opening K1 of the pixel definition layer 2, a third opening K3 and a fourth opening K4 of the first light-shielding layer 4, and a color resist layer 55; among the color resists 51 of the same color, the orthographic projection area of ​​the color resist 51 located in the first sub-region ZA1 on the substrate 1 is equal to the orthographic projection area of ​​the color resist 51 located in the first transition region GA1 on the substrate 1, and the orthographic projection area of ​​the color resist 51 located in the second sub-region ZA2 on the substrate 1 is equal to the orthographic projection area of ​​the color resist 51 located in the second transition region GA2 on the substrate 1.

[0060] It should be noted that since the boundary region ZA is located between the first transition region GA1 and the second transition region GA2, by restricting the first sub-region ZA1 and the second sub-region ZA2 to be alternately set along the extension direction of the boundary region ZA, the boundary between the first transition region GA1 and the second transition region GA2 is blurred, making the transition between the first transition region GA1 and the second transition region GA2 more natural. The orthographic projection area of ​​the color resist 51 located in the first sub-region ZA1 on the substrate 1 is equal to the orthographic projection area of ​​the color resist 51 located in the first transition region GA1 on the substrate 1. That is, the shape and size of the color resist 51 located in the first sub-region ZA1 can be the same as the shape and size of the color resist 51 located in the first transition region GA1 to achieve the same light emission effect. The orthographic projection area of ​​the color resist 51 located in the second sub-region ZA2 on the substrate 1 is equal to the orthographic projection area of ​​the color resist 51 located in the second transition region GA2 on the substrate 1. That is, the shape and size of the color resist 51 located in the second sub-region ZA2 can be the same as the shape and size of the color resist 51 located in the second transition region GA2. The light emission effect of the second sub-region ZA2 and the second transition region GA2 is the same. The first sub-region ZA1 and the second sub-region ZA2 are alternately arranged along the extension direction of the boundary region ZA, which can reduce the difference between the light emission effect of the boundary region ZA and the light emission effect of the first transition region GA1 and the second transition region GA2, thereby blurring the boundary between the first transition region GA1 and the second transition region GA2 and improving the display effect.

[0061] Optionally, the orthographic projection shape of the first sub-region ZA1 and the second sub-region ZA2 on the substrate 1 can be a triangle, rectangle, rhombus, or curved shape, irregular shape, etc., as long as they can be alternately set along the extension direction of the boundary region ZA, and the setting form of the color resist 51 meets the above requirements.

[0062] like Figure 12 As shown, in some optional embodiments, along the direction perpendicular to the extension direction of the boundary region ZA, the boundary region ZA includes an alternately arranged first sub-region ZA1 and second sub-region ZA2. That is, the first sub-region ZA1 and the second sub-region ZA2 are alternately arranged along the extension direction of the boundary region ZA and in a direction perpendicular to the extension direction of the boundary region ZA, respectively, in order to reduce the difference in light output effect between the boundary region ZA and the first transition region GA1 and the second transition region GA2. For example, along the extension direction of the boundary region ZA, the first sub-region ZA1, the second sub-region ZA2, the first sub-region ZA1, and the second sub-region ZA2 are alternately arranged in sequence. Correspondingly, along the direction perpendicular to the extension direction of the boundary region ZA, the first sub-region ZA1, the second sub-region ZA2, the first sub-region ZA1, and the second sub-region ZA2 are alternately arranged in sequence. The specific number of the first sub-region ZA1 and the second sub-region ZA2 along the direction perpendicular to the extension direction of the boundary region ZA can be selected according to the size of the area between the first transition region GA1 and the second transition region GA2, and there is no special limitation.

[0063] In some optional embodiments, the pixel definition layer 2 includes a black organic material or a black inorganic material. It is understood that black materials have better light absorption. Using a black organic material or a black inorganic material for the pixel definition layer 2 can improve the light-shielding performance of the pixel definition layer 2 and avoid the problem of light leakage.

[0064] Black organic materials can specifically be organic resin materials, etc. Black inorganic materials can be inorganic polymer materials, etc.

[0065] Please see Figure 13 , Figure 13 This is a schematic diagram of the structure of a display device according to an embodiment of the present invention. The present invention also provides a display device, including: a display panel 100, wherein the display panel 100 is the display panel 100 in any of the above embodiments; and an optical element 200, corresponding to a light-transmitting display area TA of the display panel 100.

[0066] Optionally, the optical element 200 may include either a light-sensing element or a fingerprint recognition element, for use in realizing functions such as shooting, proximity sensing, fingerprint recognition, and face recognition of the display panel 100.

[0067] The display device provided in this embodiment of the invention has the technical effects of the display panel 100 in any of the above embodiments. The explanations of the same or corresponding structures and terms as in the above embodiments will not be repeated here.

[0068] The display panel 100 provided in the embodiments of the present invention can be an organic light-emitting diode (OLED) display panel 100, a quantum dot light-emitting diode (QLED) display panel 100, or a micro flat panel display panel 100 (Micro-OLED or Micro-LED), etc.

[0069] The display device provided in this embodiment of the invention can be applied to mobile phones or any electronic product with display function, including but not limited to the following categories: televisions, laptops, desktop monitors, tablets, digital cameras, smart bracelets, smart glasses, in-vehicle displays, medical devices, industrial control equipment, touch interactive terminals, etc. This embodiment of the invention does not impose any special limitations on these.

[0070] The above are merely specific embodiments of the present invention. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the protection scope of the present invention.

[0071] It should also be noted that the exemplary embodiments mentioned in this invention describe methods or systems based on a series of steps or apparatus. However, this invention is not limited to the order of the steps described above; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

Claims

1. A display panel, characterized in that, The display panel includes a first display area and a second display area, the first display area surrounding at least a portion of the second display area, and the second display area including a transition display area and a light-transmitting display area, the transition display area being located between the light-transmitting display area and the first display area; the display panel includes: substrate; A pixel definition layer is disposed on one side of the substrate. The pixel definition layer includes a pixel definition structure and a plurality of first openings and second openings that are spaced apart by the pixel definition structure. The first openings are located in the first display area and the second display area, and the second openings are located in the light-transmitting display area. The display functional layer includes a light-emitting unit, which is at least partially located within the first opening; A first light-shielding layer is disposed on the side of the pixel definition layer away from the substrate. The first light-shielding layer includes a light-shielding structure and a plurality of third and fourth openings spaced apart by the light-shielding structure. The third opening is located in the first display area and the second display area, and the fourth opening is located in the transition display area and the light-transmitting display area. Along a direction perpendicular to the plane of the substrate, the third opening and the first opening at least partially overlap, and the fourth opening located in the light-transmitting display area at least partially overlaps with the second opening. A color resist layer, comprising a plurality of color resists, wherein at least a portion of the color resists are located within the third opening, wherein among the color resists of the same color, the orthographic projection area of ​​the color resist located in the first display area on the substrate is a first area, the orthographic projection area of ​​the color resist located in the transition display area on the substrate is a second area, and the orthographic projection area of ​​the color resist located in the light-transmitting display area on the substrate is a third area, wherein the first area is greater than or equal to the second area, and the second area is greater than or equal to the third area, wherein the edge of the orthographic projection pattern of the color resist located in the light-transmitting display area on the substrate has a first notch, and the first notch and the fourth opening are disposed opposite to each other along a direction parallel to the plane of the substrate.

2. The display panel according to claim 1, characterized in that, The absolute value of the difference between the first area and the second area is less than or equal to a preset difference, the absolute value of the difference between the second area and the third area is less than or equal to the preset difference, and the preset difference is less than or equal to 5% of the first area.

3. The display panel according to claim 1, characterized in that, Along a direction parallel to the plane of the substrate, the opposite sides of the first notch and the opposite fourth opening are parallel to each other.

4. The display panel according to claim 1, characterized in that, The transition display area includes a first transition area and a second transition area arranged adjacent to each other, with the first transition area being located closer to the light-transmitting display area relative to the second transition area. Among the color resists of the same color, the projected area of ​​the color resist located in the first transition region on the substrate is smaller than the projected area of ​​the color resist located in the second transition region on the substrate.

5. The display panel according to claim 4, characterized in that, Among the color resists of the same color, the orthographic projection pattern of the color resist located in the first transition region on the substrate and the orthographic projection pattern of the color resist located in the light-transmitting display region on the substrate are the same, and the orthographic projection areas are equal. And / or, The orthographic projection pattern of the color resist located in the second transition area on the substrate is the same as the orthographic projection pattern of the color resist located in the first display area on the substrate, and the orthographic projection areas are equal.

6. The display panel according to claim 1, characterized in that, The orthographic projection pattern of the fourth opening located in the light-transmitting display area on the substrate is the same as the orthographic projection pattern of the fourth opening located in the transition display area on the substrate, and their orthographic projection areas are equal.

7. The display panel according to claim 4, characterized in that, It also includes the boundary region located between the first transition region and the second transition region; Along the extension direction of the boundary region, the boundary region includes alternating first sub-regions and second sub-regions; Within the first sub-region and the second sub-region, there are the first opening of the pixel definition layer, the third opening and the fourth opening of the first light-shielding layer, and the color resist layer; Among the color resists of the same color, the orthographic projection area of ​​the color resist located in the first sub-region on the substrate is equal to the orthographic projection area of ​​the color resist located in the first transition region on the substrate, and the orthographic projection area of ​​the color resist located in the second sub-region on the substrate is equal to the orthographic projection area of ​​the color resist located in the second transition region on the substrate.

8. The display panel according to claim 7, characterized in that, Along a direction perpendicular to the extension direction of the boundary region, the boundary region includes alternating first sub-regions and second sub-regions.

9. The display panel according to claim 1, characterized in that, The pixel definition layer includes black organic material or black inorganic material.

10. A display device, characterized in that, include: The display panel is the display panel according to any one of claims 1 to 9; Optical elements are provided, corresponding to the light-transmitting display area of ​​the display panel.

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