Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a substrate; the pixel definition layer comprises a pixel definition structure and a plurality of first openings and second openings; the display function layer comprises a light-emitting unit; the first light shielding layer comprises a light shielding structure, a third opening and a fourth opening, the third opening and the first opening are at least partially overlapped in the direction perpendicular to the plane where the substrate is located, and the fourth opening and the second opening located in the light-transmitting display area are at least partially overlapped; in the color resistors with the same color, the orthographic projection area of the color resistor located in the first display area on the substrate is a first area, the orthographic projection area of the color resistor located in the transition display area on the substrate is a second area, and the orthographic projection area of the color resistor located in the light-transmitting display area on the substrate is a third area; the first area is larger than or equal to the second area which is larger than or equal to the third area. The display difference between the first display area and the second display area is reduced, and the user experience is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of electronic products, and in particular relates to a display panel and a display device. Background Art

[0002] With the advancement of technology, digital display panels such as smart phones and tablet computers have been widely used, among which the display screen is an indispensable interpersonal communication interface in these display panels. OLED (Organic Light Emitting Diode) display panels have the advantages of self-luminescence, energy saving and consumption reduction, bendability, good flexibility, etc., and the display panel that realizes display does not require a backlight source, has the characteristics of fast response speed and good display effect, and has attracted the attention of users and is widely used in terminal products such as smart phones and tablet computers.

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

[0004] Therefore, a new display panel and display device are urgently needed. Summary of the invention

[0005] Embodiments of the present invention provide a display panel and a display device, which reduce the display difference between the first display area and the second display area by limiting the difference in the setting areas of the second opening and the fourth opening and limiting the color resistance area of ​​each area, prevent the second display area from being highlighted, and improve the black state uniformity of the display panel, thereby improving the user experience.

[0006] In a first aspect, an embodiment of the present invention provides a display panel, including a first display area and a second display area, wherein the first display area surrounds at least a portion of the second display area, and the second display area includes a transition display area and a light-transmitting display area, wherein the transition display area is 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 a pixel definition structure and a plurality of first openings and second openings spaced apart by the pixel definition structure, the first opening being located in the first display area and the second display area, and the second opening being located in the light-transmitting display area; a display function layer, the display function layer including a light-emitting unit, the light-emitting unit being at least partially located in the first opening; a first light-shielding layer, disposed on a side of the pixel definition layer away from the substrate, the first light-shielding layer including a light-shielding structure and a plurality of third openings and a 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. Along a direction perpendicular to the plane where the substrate is located, the third opening and the first opening at least partially overlap, and the fourth opening and the second opening located in the light-transmitting display area at least partially overlap; a color resist layer, wherein the color resist layer comprises a plurality of color resists, and the color resists are at least partially located in the third opening. Among the color resists of the same color, the color resist located in the first display area has a first area as its orthographic projection area on the substrate, the color resist located in the transition display area has a second area as its orthographic projection area on the substrate, and the color resist located in the light-transmitting display area has a third area as its orthographic projection area on the substrate, and 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] In a second aspect, an embodiment of the present invention provides a display device, comprising: a display panel, the display panel being the display panel in any of the above embodiments; and an optical element, arranged corresponding to a light-transmitting display area of ​​the display panel.

[0008] Compared with the related art, the display panel provided in the embodiment of the present invention includes a substrate, a pixel definition layer, a display function layer, a first light shielding layer and a color blocking layer. The pixel definition layer includes a first opening and a second opening. The first opening is used to set a light-emitting unit to limit the light output 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 is not provided with an opening in the transition display area. The first light shielding layer is provided with a third opening in the first display area and the second display area, and a fourth opening is provided in the transition display area and the light-transmitting display area. In a direction perpendicular to the plane where the substrate is located, the third opening and the first opening at least partially overlap, so that the light output of the light-emitting unit can be emitted from the third opening, and 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. In the embodiment of the present invention, a fourth opening and a second opening for improving the transmittance are provided in the light-transmitting display area at the same time, and only a fourth opening for improving the transmittance is provided in the transitional display area between the light-transmitting display area and the first display area, while no opening for improving the transmittance is provided in the pixel definition layer and the first light shielding layer in the first display area, so as to reduce the transmittance difference between the first display area, the transitional display area, and the light-transmitting display area, and improve the display effect. At the same time, the embodiment limits the relationship between the positive projection areas of the color resistance in the first display area, the transitional 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, so that the color resistance area ratios of the first display area and the second display area are similar, so that the hue is closer, and the user experience is avoided from being affected by the excessive hue deviation between the first display area and the second display area. In summary, the embodiment limits the difference in the setting areas of the second opening and the fourth opening and the color resistance area restrictions of each area, so as to reduce the display difference between the first display area and the second display area, prevent the second display area from being highlighted, and the black state uniformity of the display panel is better, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

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

[0011] Figure 2 is a schematic structural diagram of a first display area provided by an embodiment of the present invention;

[0012] Figure 3 Another embodiment of the present invention provides Figure 2 Schematic diagram of the cross section at the middle BB;

[0013] Figure 4 is a schematic structural diagram of a transition display area provided by an embodiment of the present invention;

[0014] Figure 5 Another embodiment of the present invention provides Figure 4 Schematic diagram of the cross section at CC;

[0015] Figure 6 is a schematic structural diagram of a light-transmitting display area provided by an embodiment of the present invention;

[0016] Figure 7 Another embodiment of the present invention provides Figure 6 Schematic diagram of the cross section at DD in the middle;

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

[0018] Fig. 9 is a schematic structural diagram of a transition display area provided by another embodiment of the present invention;

[0019] Fig.10 Another embodiment of the present invention provides Fig. 9 Schematic diagram of the cross section at EE;

[0020] Fig.11 is a schematic diagram of the structure of a boundary area provided according to an embodiment of the present invention;

[0021] Fig.12 is a schematic structural diagram of a boundary area provided according to another embodiment of the present invention;

[0022] Fig.13 It is a schematic diagram of the structure of a display device provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0025] In order to better understand the present invention, Figures 1 to 13 A display panel and a display device according to embodiments of the present invention are described in detail.

[0026] Please also read Figures 1 to 7 , Figure 1 is a schematic structural diagram of a display panel provided according to an embodiment of the present invention; Figure 2 is a schematic structural diagram of a first display area provided by an embodiment of the present invention; Figure 3 Another embodiment of the present invention provides Figure 2 Schematic diagram of the cross section at the middle BB; Figure 4 is a schematic structural diagram of a transition display area provided by an embodiment of the present invention; Figure 5 Another embodiment of the present invention provides Figure 4 Schematic diagram of the cross section at CC; Figure 6 is a schematic structural diagram of a light-transmitting display area provided by an embodiment of the present invention; Figure 7 Another embodiment of the present invention provides Figure 6 Schematic diagram of the cross section at DD in the middle.

[0027] In the prior art, a display panel is usually provided with a light-transmitting display area with a higher light transmittance for setting optical elements. Due to the design difference 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, which affects the performance of the display panel and the user's experience.

[0028] In order to solve the above problems, the display panel provided in the embodiment of the present invention limits the setting area differences of the second opening and the fourth opening and the color resistance area of ​​each area to reduce the display difference between the first display area and the second display area, prevent the second display area from standing out, and the black state uniformity of the display panel is better, thereby improving the user experience.

[0029] An embodiment of the present invention provides a display panel, including a first display area AA1 and a second display area AA2, wherein the first display area AA1 surrounds at least a portion of the second display area AA2, and the second display area AA2 includes a transition display area GA and a light-transmitting display area TA, wherein 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, which is arranged on one side of the substrate 1, the pixel definition layer 2 includes 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 opening K1 is located in the first display area AA1 and the second display area AA2, and the second opening K2 is located in the light-transmitting display area TA; a display function layer 3, the display function layer 3 includes a light-emitting unit 31, and the light-emitting unit 31 is at least partially located in the first opening K1; a first light-shielding layer 4, which is arranged on the side of the pixel definition layer 2 away from the substrate 1, the first light-shielding layer 4 includes 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 opening K3 is located in the first display area AA1 and the second display area AA2, and the fourth opening K4 is 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 51 layer 55, the color resist 51 layer 55 includes a plurality of color resists 51, and the color resist 51 is at least partially located in the third opening K3. Among the color resists 51 with the same color, the color resist 51 located in the first display area AA1 has a first area as the orthographic projection area on the substrate 1, the color resist 51 located in the transition display area GA has a second area as the orthographic projection area on the substrate 1, and the color resist 51 located in the light-transmitting display area TA has a third area as the orthographic projection area on the substrate 1, and 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 by the embodiment of the present 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 51 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 to limit the light output 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 is not provided with an opening in the transitional display area GA. The first light shielding layer 4 is provided with a third opening K3 in the first display area AA1 and the second display area AA2, and a fourth opening K4 in the transitional 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 output of 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 transitional display area GA and the light-transmitting display area TA.

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

[0032] At the same time, this embodiment limits the relationship between the positive projection areas of the color resistance 51 in the first display area AA1, the transition display area GA, and the light-transmitting display area TA, 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, so that the area ratio of the color resistance 51 in the first display area AA1 and the second display area AA2 is similar, so that the hue is closer, thereby 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 limits the setting area differences of the second opening K2 and the fourth opening K4 and the area restrictions of the color resistance 51 in each area to reduce the display difference between the first display area AA1 and the second display area AA2, prevent the second display area AA2 from being highlighted, and the black state uniformity of the display panel is better, thereby improving the user experience.

[0033] The first display area AA1 surrounds at least part 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 light-transmitting display area TA can be used to set optical elements with high transmittance requirements, such as cameras, fingerprint recognition elements, and face recognition elements.

[0034] In this embodiment, 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, which means that the orthographic projection of the third opening K3 on the substrate 1 and the orthographic projection of the first opening K1 on the substrate 1 partially overlap, and the orthographic projection area of ​​the third opening K3 on the substrate 1 can be greater than, equal to, or the orthographic projection area of ​​the first opening K1 on the substrate 1, as long as it is ensured that the light emitted by the light-emitting unit 31 can be normally emitted through the third opening K3 and the first opening K1. Optionally, the orthographic projection of the third opening K3 on the substrate 1 covers the orthographic projection of the first opening K1 on the substrate 1 to ensure the emission effect of the light emitted by the light-emitting unit 31. Wherein, the direction of the plane where the substrate 1 is located is X.

[0035] The fourth opening K4 and the second opening K2 located in the light-transmitting display area TA at least partially overlap, and the overlapped portion of the fourth opening K4 and the second opening K2 has fewer film layers and higher light transmittance, thereby further improving 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, that is, the color resistance 51 of the first display area AA1, the transition display area GA, and the light-transmitting display area TA are the same size, or, 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 resistance 51 of the transition display area GA and the light-transmitting display area TA are the same size, and the color resistance 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, and the color resistance 51 of the first display area AA1 is greater than the color resistance 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 may be greater than or equal to the second area, and the second area may be greater than the third area, that is, the color resist 51 of the transition display area GA and the first display area AA1 may be of the same size, and the color resist 51 of the transition display area GA and the first display area AA1 may adopt the same design, that is, the shape and size are the same, and 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, the substrate 1 may include a substrate and an array layer, and the array layer may include a driving circuit. For example, the array layer may include a first conductive layer, a second conductive layer, and a third conductive layer that are arranged on one side of the substrate and are stacked. An insulating layer is provided between adjacent conductive film layers. Exemplarily, the pixel driving circuit provided in 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 plate and a second plate. As an example, the gate G and the first plate may be located in the first conductive layer, the second plate may be located in the second conductive layer, and the source S and the drain D may be located in the third conductive layer.

[0039] Optionally, the display function layer 3 includes a first electrode layer, a light-emitting layer and a second electrode layer stacked in a direction away from the substrate 1. Optionally, the light-emitting layer includes one or more of 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. It can be selected according to the specific type of the light-emitting layer, and there is no special limitation. The electron injection layer, the electron transport layer, and the hole blocking layer can be arranged between the second electrode layer and the light-emitting material layer. The electron blocking layer, the hole transport layer and the hole injection layer can be arranged 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 in order to improve the hole injection efficiency, and may 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), etc. For example, the first electrode layer may be made of an ITO-Ag-ITO composite material, without special limitation.

[0041] The material of the second electrode layer can be one of the metal materials such as silver (Ag), aluminum (Al), lithium (Li), magnesium (Mg), ytterbium (Yb), calcium (Ca) or indium (In), or it can be an alloy of the aforementioned metal materials, such as magnesium-silver alloy (Mg / Ag) and lithium-aluminum alloy (Li / Al), but this embodiment does not impose any limitation on this.

[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 the preset difference, and the preset difference is less than or equal to 5% of the first area.

[0043] It can be understood that the greater the difference between the first area and the second area, the greater the size difference of the corresponding color resistance 51, and the greater the display difference produced. Therefore, it is necessary to limit the difference between the first area, the second area and the third area. The inventors have found that when the absolute value of the difference between the first area and the second 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 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 shapes and sizes 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 transitional 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 in sequence and reduce the display difference, 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 difference between the first display area AA1, the transition display area GA, and the light-transmitting display area TA.

[0047] Optionally, the preset difference may be equal to any one of 0%, 1%, 2%, 3%, 4%, and 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 gap Q1.

[0049] It should be noted that the purpose of setting the first gap Q1 is, on the one hand, to adjust the orthographic projection area of ​​the color resist 51 located in the light-transmitting display area TA on the substrate 1. The larger the first gap Q1, the smaller the corresponding orthographic projection area of ​​the color resist 51 located in the light-transmitting display area TA on the substrate 1. The smaller the first gap Q1, the larger the corresponding orthographic projection area of ​​the color resist 51 located in the light-transmitting display area TA on the substrate 1. On the other hand, when the color resist 51 and the first light-shielding layer 4 are arranged on the same layer, the fourth opening K4 of the first light-shielding layer 4 located in the light-transmitting display area TA can also be avoided by setting the first gap Q1 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 in a direction parallel to the plane where the substrate 1 is located. 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, so as to use the space of the first notch Q1 to set the fourth opening K4, and while the fourth opening K4 is set to improve the transmittance, the size adjustment of the color resist 51 located in the light-transmitting display area TA is achieved.

[0051] Optionally, along a direction parallel to the plane where the substrate 1 is located, the relative sides of the first notch Q1 and the relative fourth opening K4 are parallel to each other to reduce the distance between the first notch Q1 and the relative fourth opening K4 and improve space utilization. Optionally, the orthographic projection figure of the first notch Q1 on the substrate 1 can be a polygon such as a rectangle, rhombus, pentagon, hexagon or a curved shape. Correspondingly, the orthographic projection figure of the fourth opening K4 on the substrate 1 can also be a polygon such as a rectangle, rhombus, pentagon, hexagon or a curved shape. It can be set according to actual needs without special limitation.

[0052] See also Figures 8 to 10 , Figure 8 is a schematic structural diagram of a display panel provided according to another embodiment of the present invention; Fig. 9 is a structural schematic diagram of a transition display area GA provided by another embodiment of the present invention; Fig.10 Another embodiment of the present invention provides Figure 4 Schematic diagram of the cross section at EE.

[0053] In some optional embodiments, the transition display area GA includes a first transition area GA1 and a second transition area GA2 that are adjacent to each other, and the first transition area GA1 is arranged 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 color resists 51 located in the first transition area GA1 have a smaller orthographic projection area on the substrate 1 than the color resists 51 located in the second transition area GA2.

[0054] In this embodiment, the first area can be limited to be larger than the orthographic projection area of ​​the color resist 51 in the second transition area GA2 on the substrate 1, and the orthographic projection area of ​​the color resist 51 in the first transition area GA1 on the substrate 1 is smaller than the third area, so that the orthographic projection areas of the color resist 51 located in the first display area AA1, the second transition area GA2, the first transition area GA1, and the light-transmitting display area TA on the substrate 1 are reduced successively, so as to reduce the hue difference among the first display area AA1, the second transition area GA2, the first transition area GA1, and the light-transmitting display area TA.

[0055] See also Figure 6 and Fig. 9, it can also be limited to the color resist 51 of the same color, the orthographic projection pattern of the color resist 51 located in the first transition area GA1 on the substrate 1 and the orthographic projection area of ​​the color resist 51 located in the light-transmitting display area TA on the substrate 1 are equal. Since the first transition area GA1 is arranged close to the light-transmitting display area TA, the hue difference between the first transition area GA1 and the light-transmitting display area TA can be reduced by limiting the size of the color resist 51 located in the first transition area GA1 and the color resist 51 located in the light-transmitting display area TA. Optionally, the orthographic projection pattern of the color resist 51 located in the first transition area GA1 on the substrate 1 and the orthographic projection pattern of the color resist 51 located in the light-transmitting display area TA on the substrate 1 are the same, that is, the size and shape of the color resist 51 located in the first transition area GA1 and the color resist 51 located in the light-transmitting display area TA are the same, so as to further reduce the display difference between the first transition area GA1 and the light-transmitting display area TA.

[0056] See also Figure 2 and Figure 4 , the orthographic projection figure of the color resist 51 in the second transition area GA2 on the substrate 1 is the same as the orthographic projection figure of the color resist 51 in the first display area AA1 on the substrate 1, and the orthographic projection area is equal. Similarly, since the second transition area GA2 is arranged close to the first display area AA1, the hue difference between the second transition area GA2 and the first display area AA1 can be reduced by limiting the size and shape of the color resist 51 in the second transition area GA2 and the color resist 51 in the first display area AA1. Optionally, the orthographic projection figure of the color resist 51 in the second transition area GA2 on the substrate 1 is the same as the orthographic projection figure of the color resist 51 in the first display area AA1 on the substrate 1, that is, the size and shape of the color resist 51 in the second transition area GA2 and the color resist 51 in the first display area AA1 are the same, so as to further reduce the display difference between the second transition area GA2 and the first display area AA1.

[0057] See also 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 the present 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-transmitting effects are the same, so as to reduce 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 such as a rectangle, a rhombus, a pentagon, a hexagon, or a curved shape. 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 processes such as photolithography and laser etching to reduce the process flow and reduce production costs.

[0059] See also Figure 4 , Fig. 9 , Fig.11 and Fig.12 , Fig.11 is a schematic diagram of the structure of a boundary zone ZA provided according to an embodiment of the present invention; Fig.12 : is a structural schematic diagram of a boundary area ZA provided according to another embodiment of the present invention. In some optional embodiments, the display panel further includes a boundary area ZA located between the first transition area GA1 and the second transition area GA2; along the extension direction of the boundary area ZA, the boundary area ZA includes a first sub-area ZA1 and a second sub-area ZA2 that are alternately arranged; in the first sub-area ZA1 and the second sub-area ZA2, 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 51 layer 55 are provided; among the color resists 51 of the same color, the orthographic projection area of ​​the color resist 51 located in the first sub-area ZA1 on the substrate 1 is equal to the orthographic projection area of ​​the color resist 51 located in the first transition area GA1 on the substrate 1, and the orthographic projection area of ​​the color resist 51 located in the second sub-area ZA2 on the substrate 1 is equal to the orthographic projection area of ​​the color resist 51 located in the second transition area GA2 on the substrate 1.

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

[0061] Optionally, the orthographic projection shapes of the first sub-area ZA1 and the second sub-area ZA2 on the substrate 1 can be triangles, rectangles, rhombuses, curved edges, irregular shapes, etc., as long as they can be alternately arranged along the extension direction of the boundary area ZA and the arrangement of the color resist 51 meets the above requirements.

[0062] like Fig.12 As shown, in some optional embodiments, along a direction perpendicular to the extension direction of the boundary zone ZA, the boundary zone ZA includes a first sub-zone ZA1 and a second sub-zone ZA2 that are alternately arranged, that is, the first sub-zone ZA1 and the second sub-zone ZA2 are alternately arranged along the extension direction of the boundary zone ZA and the direction perpendicular to the extension direction of the boundary zone ZA, respectively, so as to reduce the difference in light emitting effect of the boundary zone ZA and the light emitting effect of the first transition zone GA1 and the second transition zone GA2. For example, along the extension direction of the boundary zone ZA, the first sub-zone ZA1, the second sub-zone ZA2, the first sub-zone ZA1, and the second sub-zone ZA2 are repeatedly and alternately arranged in sequence, and correspondingly, along the direction perpendicular to the extension direction of the boundary zone ZA, the first sub-zone ZA1, the second sub-zone ZA2, the first sub-zone ZA1, and the second sub-zone ZA2 are repeatedly and alternately arranged in sequence. Along the direction perpendicular to the extension direction of the boundary zone ZA, the specific number of the first sub-zone ZA1 and the second sub-zone ZA2 can be selected according to the size of the area between the first transition zone GA1 and the second transition zone GA2, and there is no special limitation.

[0063] In some optional embodiments, the pixel definition layer 2 includes black organic material or black inorganic material. It can be understood that black material has better light absorption. The pixel definition layer 2 uses black organic material or black inorganic material to improve the light-shielding performance of the pixel definition layer 2 and avoid light leakage problems.

[0064] The black organic material may be an organic resin material, etc. The black inorganic material may be an inorganic polymer material, etc.

[0065] See also Fig.13 , Fig.13 1 is a schematic diagram of a display device according to an embodiment of the present invention. The present invention also provides a display device, comprising: a display panel 100, the display panel 100 being the display panel 100 in any of the above embodiments; and an optical element 200, which is arranged corresponding to the light-transmitting display area TA of the display panel 100.

[0066] Optionally, the optical element 200 includes any one of a light sensing element and a fingerprint recognition element, so as to realize functions of the display panel 100 such as shooting, distance sensing, fingerprint recognition, and face recognition.

[0067] The display device provided by the embodiment of the present invention has the technical effects of the technical solution of the display panel 100 in any of the above embodiments, and the explanations of the structures and terms that are the same as or corresponding to the above embodiments are not repeated here.

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

[0069] The display device provided in the embodiment of the present invention can be applied to a mobile phone, or any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiment of the present invention does not make any special limitations on this.

[0070] The above is only a specific implementation of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the system, module and unit described above can refer to the location process in the aforementioned method embodiment, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

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

Claims

1. A display panel, characterized in that: The display panel comprises a first display area and a second display area, wherein the first display area surrounds at least a portion of the second display area, and the second display area comprises a transition display area and a light-transmitting display area, wherein the transition display area is located between the light-transmitting display area and the first display area; the display panel comprises: substrate; A pixel definition layer, disposed on one side of the substrate, the pixel definition layer comprising a pixel definition structure and a plurality of first openings and second openings spaced apart from each other by the pixel definition structure, the first openings being located in the first display area and the second display area, and the second openings being located in the light-transmitting display area; A display function layer, the display function layer comprising a light emitting unit, wherein the light emitting unit is at least partially located in the first opening; A first light shielding layer is provided on a side of the pixel definition layer away from the substrate, the first light shielding layer comprises a light shielding structure and a plurality of third openings and a fourth opening spaced apart by the light shielding structure, the third opening is located in the first display area and the second display area, the fourth opening is located in the transition display area and the light-transmitting display area, along a direction perpendicular to the plane where the substrate is located, the third opening and the first opening at least partially overlap, and the fourth opening located in the light-transmitting display area and the second opening at least partially overlap; A color resist layer, wherein the color resist layer includes a plurality of color resists, wherein the color resists are at least partially located in the third opening, wherein among the color resists of the same color, the color resists located in the first display area have a first area as the orthographic projection area on the substrate, the color resists located in the transition display area have a second area as the orthographic projection area on the substrate, and the color resists located in the light-transmitting display area have a third area as the orthographic projection area on the substrate, 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.

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: The color resist located in the light-transmitting display area has a first notch at the edge of the orthographic projection pattern on the substrate.

4. The display panel according to claim 3, characterized in that: Along a direction parallel to the plane where the substrate is located, the first notch and the fourth opening are arranged opposite to each other.

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

6. The display panel according to claim 1, characterized in that: The transitional display area includes a first transitional area and a second transitional area that are adjacent to each other, wherein the first transitional area is arranged close to the light-transmissive display area relative to the second transitional area; In the color resists of the same color, the orthographic projection area of ​​the color resists located in the first transition region on the substrate is smaller than the orthographic projection area of ​​the color resists located in the second transition region on the substrate.

7. The display panel according to claim 6, characterized in that: Among the color resists of the same color, the orthographic projection pattern of the color resist located in the first transition area on the substrate is the same as the orthographic projection pattern of the color resist located in the light-transmitting display area on the substrate, and the orthographic projection areas are equal; and / or, The orthographic projection pattern of the color resist in the second transition area on the substrate is the same as the orthographic projection pattern of the color resist in the first display area on the substrate, and the orthographic projection areas are equal.

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

9. The display panel according to claim 6, characterized in that: Also included is a boundary region between the first transition region and the second transition region; Along the extension direction of the boundary area, the boundary area includes first sub-areas and second sub-areas that are alternately arranged; 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 are disposed in the first sub-area and the second sub-area; Among the color resists of the same color, the orthographic projection area of ​​the color resist located in the first sub-area on the substrate is equal to the orthographic projection area of ​​the color resist located in the first transition area on the substrate, and the orthographic projection area of ​​the color resist located in the second sub-area on the substrate is equal to the orthographic projection area of ​​the color resist located in the second transition area on the substrate.

10. The display panel according to claim 9, characterized in that: Along a direction perpendicular to an extending direction of the boundary region, the boundary region includes the first sub-regions and the second sub-regions that are alternately arranged.

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

12. A display device, characterized in that: include: A display panel, wherein the display panel is the display panel according to any one of claims 1 to 11; The optical element is arranged corresponding to the light-transmitting display area of ​​the display panel.

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