Display panel, display device, and preparation method and driving method of display panel

Abstract

The invention discloses a display panel, a display device, and a preparation method and a driving method of the display panel. The display panel comprises a substrate, an isolation structure, a first light-emitting unit, a second light-emitting unit, a pixel driving circuit and a photosensitive driving circuit. The isolation structure is arranged on the substrate and encloses a plurality of isolation openings and light-transmitting openings, so that first light-emitting units are arranged in the isolation openings, and second light-emitting units are arranged in the light-transmitting openings. And the pixel driving circuit is electrically connected with the first light-emitting unit so as to realize light-emitting display of the display panel. The photosensitive driving circuit is electrically connected with the second light-emitting unit, so that the photosensitive function of the display panel is achieved, and the problem that when only the first light-emitting unit exists in the light-transmitting area, the first light-emitting unit located in the light-transmitting area emits light in the light-emitting stage and the photosensitive stage, and consequently the brightness attenuation of the first light-emitting unit located in the light-transmitting area is fast can be solved. Therefore, the use performance of an OLED display product is improved.

Description

Technical Field

[0001] The present application relates to the field of displays, and particularly to a display panel, a display device, a preparation method and a driving method of a display panel. Background Art

[0002] Flat panel display devices based on technologies such as Organic Light Emitting Diode (OLED) and Light Emitting Diode (LED) are widely used in various consumer electronic products such as mobile phones, televisions, laptop computers, and desktop computers due to their advantages of high image quality, power saving, thin body, and wide application range, and have become the mainstream in display devices.

[0003] However, the performance of current OLED display products needs to be improved. Summary of the Invention

[0004] Embodiments of the present application provide a display panel, a display device, a preparation method and a driving method of a display panel, aiming to improve the performance of OLED display products.

[0005] In a first aspect of the embodiments of the present application, a display panel is provided. The display panel has a display area, and the display area includes a light-transmitting area. The display panel further includes: a substrate; an isolation structure located on one side of the substrate, and the isolation structure encloses an isolation opening and a light-transmitting opening located in the light-transmitting area; a first light-emitting unit located in the isolation opening; a second light-emitting unit located in the light-transmitting opening; a pixel driving circuit disposed on the substrate and electrically connected to the first light-emitting unit, and the pixel driving circuit is configured to drive the first light-emitting unit to emit light; a photosensitive driving circuit disposed on the substrate and electrically connected to the second light-emitting unit, and the photosensitive driving circuit is configured to drive the second light-emitting unit to emit light.

[0006] According to an embodiment of the first aspect of the present application, the display panel further includes: a conductive layer located between the substrate and the isolation structure. The second light-emitting unit includes a light-transmitting electrode located on the conductive layer. The orthographic projection of the light-transmitting electrode on the substrate at least partially overlaps with the orthographic projection of the light-transmitting opening on the substrate, and the light-transmitting electrode is electrically connected to the photosensitive driving circuit.

[0007] According to any one of the foregoing embodiments of the first aspect of the present application, the orthographic projection of the light-transmitting opening on the substrate is located within the orthographic projection of the light-transmitting electrode on the substrate.

[0008] According to any one of the foregoing embodiments of the first aspect of the present application, the second light-emitting unit includes a green light-emitting unit.

[0009] According to any one of the foregoing embodiments of the first aspect of the present application, the pixel driving circuit and the photosensitive driving circuit are independent of each other.

[0010] According to any of the foregoing embodiments of the first aspect of the present application, the conductive layer further includes a connecting portion, at least a part of the connecting portion is located in the display area, one end of the connecting portion is connected to the transparent electrode, and the other end is connected to the photosensitive driving circuit.

[0011] According to any of the foregoing embodiments of the first aspect of the present application, the extending direction of the connecting portion is the same as the extending direction of at least a part of the isolation structure.

[0012] According to any of the foregoing embodiments of the first aspect of the present application, the display panel further includes a non-display area located on at least one side of the display area, the photosensitive driving circuit is located in the non-display area, and a part of the connecting portion is located in the non-display area to connect the photosensitive driving circuit.

[0013] According to any of the foregoing embodiments of the first aspect of the present application, the pixel driving circuit is located in the display area, and the photosensitive driving circuit is located in the non-display area.

[0014] According to any of the foregoing embodiments of the first aspect of the present application, the display panel further includes: an insulating layer located on the side of the conductive layer facing away from the substrate, the insulating layer includes an insulating portion located between the transparent electrode and the isolation structure, and a first opening is formed in the insulating portion, and the first opening communicates with the transparent opening.

[0015] According to any of the foregoing embodiments of the first aspect of the present application, the orthographic projection of the first opening on the substrate is located within the orthographic projection of the transparent electrode on the substrate.

[0016] According to any of the foregoing embodiments of the first aspect of the present application, the orthographic projection of the surface of the isolation structure facing the substrate on the substrate is located within the orthographic projection of the insulating portion on the substrate.

[0017] According to any of the foregoing embodiments of the first aspect of the present application, the material of the insulating layer includes an inorganic material.

[0018] According to any of the foregoing embodiments of the first aspect of the present application, the display panel further includes: a pixel definition layer located on the substrate, the pixel definition layer includes a pixel defining portion and a pixel opening formed by surrounding the pixel defining portion, and the pixel opening communicates with the isolation opening.

[0019] According to any of the foregoing embodiments of the first aspect of the present application, the isolation structure is located on the side of the pixel defining portion facing away from the substrate.

[0020] According to any of the foregoing embodiments of the first aspect of the present application, the conductive layer is located on the side of the pixel definition layer facing away from the substrate, and the orthographic projection of the transparent electrode on the substrate is located within the orthographic projection of the pixel defining portion on the substrate.

[0021] According to any of the foregoing embodiments of the first aspect of the present application, a second opening is formed in the insulating portion, and the second opening communicates with the pixel opening.

[0022] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the insulating portion on the substrate is located within the orthographic projection of the pixel defining portion on the substrate.

[0023] According to any of the aforementioned embodiments of the first aspect of the present application, the first light-emitting unit further includes a pixel electrode, and the orthographic projection of the pixel electrode on the substrate at least partially overlaps with the orthographic projection of the pixel opening on the substrate.

[0024] According to any of the aforementioned embodiments of the first aspect of the present application, the pixel electrode and the pixel driving circuit are electrically connected.

[0025] According to any of the aforementioned embodiments of the first aspect of the present application, it also includes: a light-emitting layer located on one side of the substrate, the first light-emitting unit includes a first light-emitting structure located in the light-emitting layer, and the second light-emitting unit includes a second light-emitting structure located in the light-emitting layer.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, the first light-emitting structure and the isolation structure are spaced apart.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, the second light-emitting structure and the isolation structure are spaced apart.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel further includes: a first electrode layer located on a side of the light-emitting layer facing away from the substrate.

[0029] According to any of the aforementioned embodiments of the first aspect of the present application, the first light-emitting unit includes a first electrode located in the first electrode layer, the second light-emitting unit includes a second electrode located in the first electrode layer, and both the first electrode and the second electrode are electrically connected to the isolation structure.

[0030] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the first light-emitting structure on the substrate is located within the orthographic projection of the first electrode on the substrate.

[0031] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the second light-emitting structure on the substrate is located within the orthographic projection of the second electrode on the substrate.

[0032] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure includes a first layer and a second layer located on the side of the first layer facing away from the substrate, and the orthographic projection of the first layer on the substrate is located within the orthographic projection of the second layer on the substrate.

[0033] According to any of the aforementioned embodiments of the first aspect of the present application, the first layer includes a conductive material.

[0034] According to any of the aforementioned embodiments of the first aspect of the present application, the first layer and the second layer both include conductive material or insulating material.

[0035] According to any of the foregoing embodiments of the first aspect of the present application, the second layer includes a metallic material, and the materials of the first layer and the second layer are different.

[0036] According to any of the foregoing embodiments of the first aspect of the present application, the isolation structure further includes a third layer on the side of the first layer facing the substrate, and the orthographic projection of the first layer on the substrate is located within the orthographic projection of the third layer on the substrate.

[0037] An embodiment of the second aspect of the present application provides a display panel. The display panel has a display area, and the display area includes a light-transmitting area. The display panel further includes: a substrate; a pixel definition layer located on one side of the substrate, the pixel definition layer including pixel defining portions and pixel openings formed by enclosing the pixel defining portions; a conductive layer located on the side of the pixel definition layer facing away from the substrate, the conductive layer including a light-transmitting electrode; an insulating layer located on the side of the conductive layer facing away from the substrate, and a first opening is formed in the insulating portion; an isolation structure located on the side of the insulating layer facing away from the substrate, the isolation structure enclosing a separation opening and a light-transmitting opening, the separation opening communicating with the pixel opening, the insulating portion being located between the light-transmitting electrode portion and the isolation structure, the light-transmitting opening being located in the light-transmitting area and communicating with the first opening, the orthographic projection of the light-transmitting electrode on the substrate and the orthographic projection of the light-transmitting opening on the substrate at least partially overlap, a first light-emitting structure is provided in the separation opening, and a second light-emitting structure is provided in the light-transmitting opening.

[0038] An embodiment of the third aspect of the present application provides a display device, which includes the display panel of any of the foregoing embodiments and an integrated circuit located in a non-display area, and the integrated circuit is electrically connected to both the virtual electrode and the touch electrode.

[0039] An embodiment of the fourth aspect of the present application provides a method for manufacturing a display panel. The display panel has a display area, and the display area includes a light-transmitting area. The method includes:

[0040] Fabricating a pixel driving circuit and a photosensitive driving circuit on the substrate;

[0041] Fabricating an isolation structure on the substrate, the isolation structure enclosing a separation opening and a light-transmitting opening, the separation opening being located in the display area, and the light-transmitting opening being located in the light-transmitting area;

[0042] Fabricating a first light-emitting unit and a second light-emitting unit on the substrate, the first light-emitting unit being located in the said separation opening and electrically connected to the pixel driving circuit, and the second light-emitting unit being located in the light-transmitting opening and electrically connected to the photosensitive driving circuit.

[0043] An embodiment of the fifth aspect of the present application provides a driving method for driving the display panel of any of the foregoing embodiments. The display panel has a light-emitting stage and a photosensitive stage. The method includes:

[0044] In the light-emitting stage, making the pixel driving circuit drive the first light-emitting unit to emit light, and the second light-emitting unit not emit light;

[0045] In the photosensitive stage, the photosensitive driving circuit drives the second light-emitting unit to emit light, and the first light-emitting unit does not emit light.

[0046] According to the display panel of the embodiment of the present application, the display panel includes a substrate, an isolation structure, a first light-emitting unit, a second light-emitting unit, a pixel driving circuit, and a photosensitive driving circuit. The isolation structure is disposed on the substrate and encloses to form a plurality of isolation openings and light-transmitting openings, so as to dispose the first light-emitting unit in the isolation openings and the second light-emitting unit in the light-transmitting openings. The light-transmitting openings can improve the transmittance of the display panel in the light-transmitting area, thereby improving the photosensitive effect of the display panel in the light-transmitting area. The pixel driving circuit is electrically connected to the first light-emitting unit, so that in the light-emitting stage of the display panel, the pixel driving circuit drives the first light-emitting unit to emit light to achieve the light-emitting display of the display panel. The photosensitive driving circuit is electrically connected to the second light-emitting unit, so that in the photosensitive stage of the display panel, the photosensitive driving circuit drives the second light-emitting unit to emit light. The light emitted by the second light-emitting unit reaches the target surface, is reflected by the target surface, and then reaches the photosensitive component through the light-transmitting opening to achieve the photosensitive function of the display panel. This can improve the problem that when only the first light-emitting unit exists in the light-transmitting area, the first light-emitting unit located in the light-transmitting area emits light in both the light-emitting stage and the photosensitive stage, and the lighting time of the first light-emitting unit located in the light-transmitting area is longer than that of the first light-emitting unit in the display area, resulting in a faster brightness attenuation of the first light-emitting unit located in the light-transmitting area, thereby improving the service performance of the OLED display product. Description of the Drawings

[0047] By reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings, other features, objects, and advantages of the present application will become more apparent, wherein the same or similar reference numerals represent the same or similar features, and the drawings are not drawn to actual scale.

[0048] Figure 1 is a top view schematic diagram of a display panel provided by an embodiment of the present application;

[0049] Figure 2 is a partial cross-sectional view of a display panel provided by an embodiment of the present application;

[0050] Figure 3 is a partial top view of a display panel in another embodiment;

[0051] Figure 4 is a partial cross-sectional view of a display panel in another embodiment;

[0052] Figure 5 is a top view schematic diagram of a display panel in yet another embodiment;

[0053] Figure 6 is a top view schematic diagram of a display panel in still another embodiment;

[0054] Figure 7 is a partial cross-sectional view of a display panel in yet another embodiment;

[0055] Figure 8 is a partial cross-sectional view of a display panel in still another embodiment;

[0056] Figure 9 is a partial cross-sectional view of a display panel in still another embodiment;

[0057] Figure 10 is a schematic flow chart of a method for manufacturing a display panel provided in an embodiment of the present application.

[0058] Description of reference numerals:

[0059] 10, display panel;

[0060] 100, substrate;

[0061] 200, isolation structure; 210, first layer; 220, second layer; 230, third layer; 240, isolation opening; 250, light-transmitting opening;

[0062] 300, first light-emitting unit;

[0063] 400, second light-emitting unit;

[0064] 500, conductive layer; 510, light-transmitting electrode; 520, connecting portion;

[0065] 600, insulating layer; 610, insulating portion; 620, first opening; 630, second opening;

[0066] 700, pixel definition layer; 710, pixel defining portion; 720, pixel opening; 730, pixel electrode;

[0067] 800, light-emitting layer; 810, first light-emitting structure; 820, second light-emitting structure;

[0068] 900, first electrode layer; 910, first electrode; 920, second electrode;

[0069] AA1, display area; AA2, light-transmitting area; NA, non-display area. Detailed implementation manners

[0070] The features and exemplary embodiments of various aspects of the present application will be described in detail below. To make the objectives, technical solutions, and advantages of the present application more clear and understandable, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application.

[0071] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, elements defined by the statement "comprising..." do not exclude the presence of additional identical elements in the process, method, article or device comprising the said elements.

[0072] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "above" or "over" another layer or region, it may mean directly above the other layer or region, or there may be other layers or regions between it and the other layer or region. And if the component is flipped, this layer or region will be "below" or "beneath" the other layer or region.

[0073] Embodiments of the present application provide a display panel, a display device, a preparation method and a driving method of the display panel. The following will describe the embodiments of the display panel, the display device, the preparation method and the driving method of the display panel in conjunction with the accompanying drawings.

[0074] Embodiments of the present application provide a display panel, which may be an Organic Light Emitting Diode (OLED) display panel.

[0075] Please refer to Figures 1 to 3 , Figure 1 which is a top view schematic diagram of a display panel provided by an embodiment of the present application; Figure 2 which is a partial cross-sectional view of a display panel provided by an embodiment of the present application; Figure 3 which is a partial top view of a display panel in another embodiment.

[0076] As Figures 1 to 3 shown, an embodiment of the first aspect of the present application provides a display panel 10. The display panel 10 has a display area AA1, and the display area AA1 includes a light-transmitting area AA2. The display panel 10 further includes: a substrate 100, an isolation structure 200, a first light-emitting unit 300, a second light-emitting unit 400, a pixel driving circuit, and a photosensitive driving circuit. The isolation structure 200 is located on one side of the substrate 100. The isolation structure 200 encloses a separation opening 240 and a light-transmitting opening 250, and the light-transmitting opening 250 is located in the light-transmitting area AA2. The first light-emitting unit 300 is located in the separation opening 240. The second light-emitting unit 400 is located in the light-transmitting opening 250. The pixel driving circuit is disposed on the substrate 100 and electrically connected to the first light-emitting unit 300, and the pixel driving circuit is configured to drive the first light-emitting unit 300 to emit light. The photosensitive driving circuit is disposed on the substrate 100 and electrically connected to the second light-emitting unit 400, and the photosensitive driving circuit is configured to drive the second light-emitting unit 400 to emit light.

[0077] According to the display panel 10 of the embodiment of the present application, the display panel 10 includes a substrate 100, an isolation structure 200, a first light-emitting unit 300, a second light-emitting unit 400, a pixel driving circuit, and a photosensitive driving circuit. The isolation structure 200 is disposed on the substrate 100 and encloses a plurality of separation openings 240 and light-transmitting openings 250, so as to dispose the first light-emitting unit 300 in the separation openings 240 and dispose the second light-emitting unit 400 in the light-transmitting openings 250. The light-transmitting openings 250 can improve the transmittance of the display panel 10 in the light-transmitting area AA2, thereby improving the photosensitive effect of the display panel 10 in the light-transmitting area AA2. The pixel driving circuit is electrically connected to the first light-emitting unit 300, so that in the light-emitting stage of the display panel 10, the pixel driving circuit drives the first light-emitting unit 300 to emit light, so as to realize the light-emitting display of the display panel 10. The photosensitive driving circuit is electrically connected to the second light-emitting unit 400, so that in the photosensitive stage of the display panel 10, the photosensitive driving circuit drives the second light-emitting unit 400 to emit light. The light emitted by the second light-emitting unit 400 reaches the target surface, is reflected by the target surface, and passes through the light-transmitting opening 250 to reach the photosensitive component, so as to realize the photosensitive function of the display panel 10, and can improve the problem that when only the first light-emitting unit 300 exists in the light-transmitting area AA2, the first light-emitting unit 300 located in the light-transmitting area AA2 emits light both in the light-emitting stage and the photosensitive stage, and the lighting time of the first light-emitting unit 300 located in the light-transmitting area AA2 is longer than that of the first light-emitting unit 300 in the display area AA1, resulting in a faster brightness decay of the first light-emitting unit 300 located in the light-transmitting area AA2, thereby improving the service performance of the OLED display product.

[0078] Optionally, the isolation opening 240 is located in the display area AA1. Since the display area AA1 includes a light-transmitting area AA2, the first light-emitting unit 300 is also disposed in the isolation opening 240 of the light-transmitting area AA2, so that the light-transmitting area AA2 in the display area AA1 also has a display function, realizing the full display of the display panel 10.

[0079] Please refer to Figure 4 and Figure 5 , Figure 4 which is a partial cross-sectional view of the display panel in another embodiment; Figure 5 which is a top view schematic diagram of the display panel in yet another embodiment.

[0080] As Figure 4 and Figure 5 shown, in some alternative embodiments, the display panel 10 further includes a conductive layer 500. The conductive layer 500 is located between the substrate 100 and the isolation structure 200. The second light-emitting unit 400 includes a light-transmitting electrode 510 located on the conductive layer 500. The orthographic projection of the light-transmitting electrode 510 on the substrate 100 at least partially overlaps with the orthographic projection of the light-transmitting opening 250 on the substrate 100. The light-transmitting electrode 510 is electrically connected to the photosensitive driving circuit.

[0081] In these alternative embodiments, the orthographic projection of the light-transmitting electrode 510 on the substrate 100 at least partially overlaps with the orthographic projection of the light-transmitting opening 250 on the substrate 100, that is, at least part of the light-transmitting electrode 510 is exposed by the light-transmitting opening 250, so as to serve as the electrode of the second light-emitting unit 400 to ensure the light emission of the second light-emitting unit 400. The light-transmitting electrode 510 is electrically connected to the photosensitive driving circuit. When the display panel 10 is in the photosensitive stage, the photosensitive driving circuit transmits a driving signal to the light-transmitting electrode 510 to make the second light-emitting unit 400 emit light. The light emitted by the second light-emitting unit 400 reaches the target surface, is reflected by the target surface, and passes through the light-transmitting opening 250 to reach the photosensitive component, so as to realize the photosensitive function of the display panel 10. And at least part of the light-transmitting electrode 510 is exposed by the light-transmitting opening 250, which can improve the mutual interference of the signals on the side of the light-transmitting electrode 510 close to the substrate 100 and the signals on the side away from the substrate 100 passing through the light-transmitting opening 250.

[0082] In some alternative embodiments, the orthographic projection of the light-transmitting opening 250 on the substrate 100 is located within the orthographic projection of the light-transmitting electrode 510 on the substrate 100.

[0083] In these alternative embodiments, the orthographic projection of the light-transmitting opening 250 on the substrate 100 is located within the orthographic projection of the light-transmitting electrode 510 on the substrate 100, that is, the light-transmitting opening 250 is completely covered by the light-transmitting electrode 510. On the one hand, it can improve the light-emitting effect of the second light-emitting unit 400, and on the other hand, it can improve the signal shielding effect of the light-transmitting electrode 510, that is, it can further reduce the mutual interference of the signals on the side of the light-transmitting electrode 510 close to the substrate 100 and the side away from the substrate 100 passing through the light-transmitting opening 250.

[0084] Optionally, the second light-emitting unit 400 includes a green light-emitting unit. The second light-emitting unit 400 that emits green light has a high luminous efficiency, can improve the photosensitive intensity, and thus improve the photosensitive effect of the display panel 10.

[0085] Optionally, the pixel driving circuit and the photosensitive driving circuit are independent of each other, that is, the first light-emitting unit 300 and the second light-emitting unit 400 emit light independently. The pixel driving circuit is electrically connected to the first light-emitting unit 300, so that in the light-emitting stage of the display panel 10, the pixel driving circuit drives the first light-emitting unit 300 to emit light to achieve the light-emitting display of the display panel 10. The photosensitive driving circuit is electrically connected to the second light-emitting unit 400, so that in the photosensitive stage of the display panel 10, the photosensitive driving circuit drives the second light-emitting unit 400 to emit light. The light emitted by the second light-emitting unit 400 reaches the target surface, is reflected by the target surface, and passes through the light-transmitting opening 250 to reach the photosensitive component to achieve the photosensitive function of the display panel 10.

[0086] As Figure 5 shown, in some alternative embodiments, the conductive layer 500 further includes a connecting portion 520. At least a part of the connecting portion 520 is located in the display area AA1. One end of the connecting portion 520 is connected to the light-transmitting electrode 510, and the other end is connected to the photosensitive driving circuit.

[0087] In these alternative embodiments, the connecting portion 520 on the same layer as the light-transmitting electrode 510 electrically conducts the light-transmitting electrode 510 and the photosensitive driving circuit, so that the light-transmitting electrode 510 and the photosensitive driving circuit are electrically connected. In the photosensitive stage of the display panel 10, the photosensitive driving circuit drives the second light-emitting unit 400 to emit light. The light emitted by the second light-emitting unit 400 reaches the target surface, is reflected by the target surface, and passes through the light-transmitting opening 250 to reach the photosensitive component to achieve the photosensitive function of the display panel 10.

[0088] Please refer to Figure 6 , Figure 6 which is a top view schematic diagram of the display panel in another embodiment.

[0089] As Figure 6 shown, in some alternative embodiments, the extending direction of the connecting portion 520 is the same as the extending direction of at least a part of the isolation structure 200.

[0090] In these alternative embodiments, the extending direction of the connecting portion 520 is the same as that of the isolation structure 200, such that the connecting portion 520 extends along the extending direction of the isolation structure 200, thereby reducing the influence of the connecting portion 520 on the light emission of the first light-emitting unit 300 in the isolation opening 240 and the second light-emitting unit 400 in the light-transmitting opening 250, and further reducing the shielding of the light-transmitting opening 250 by the connecting portion 520, and ensuring the transmittance of the light-transmitting opening 250.

[0091] Optionally, the orthographic projection of the connecting portion 520 on the substrate 100 is located within the orthographic projection of the isolation structure 200 on the substrate 100, that is, the extending path of the connecting portion 520 is the same as that of the isolation structure 200, such that the connecting portion 520 extends along the extending path of the isolation structure 200, further reducing the influence of the connecting portion 520 on the light emission of the first light-emitting unit 300 in the isolation opening 240 and the second light-emitting unit 400 in the light-transmitting opening 250, and reducing the shielding of the light-transmitting opening 250 by the connecting portion 520, and ensuring the transmittance of the light-transmitting opening 250.

[0092] In some alternative embodiments, the display panel 10 further includes a non-display area NA located at least on one side of the display area AA1, the photosensitive driving circuit is located in the non-display area NA, and a part of the connecting portion 520 is located in the non-display area NA to connect the photosensitive driving circuit.

[0093] In these alternative embodiments, the connecting portion 520 leads the light-transmitting electrode 510 located in the light-transmitting area AA2 through the display area AA1 to the photosensitive driving circuit located in the non-display area NA to realize the electrical connection between the light-transmitting electrode 510 and the photosensitive driving circuit.

[0094] In some alternative embodiments, the pixel driving circuit is located in the display area AA1, and the photosensitive driving circuit is located in the non-display area NA.

[0095] In these alternative embodiments, the pixel driving circuit and the photosensitive driving circuit are respectively disposed in the display area AA1 and the non-display area NA, reducing the mutual influence between the pixel driving circuit and the photosensitive driving circuit, and ensuring the reliability of the pixel driving circuit and the photosensitive driving circuit.

[0096] Please continue to refer to Figure 4 and Figure 5 , in some alternative embodiments, the display panel 10 further includes an insulating layer 600, the insulating layer 600 is located on the side of the conductive layer 500 away from the substrate 100, the insulating layer 600 includes an insulating portion 610 located between the light-transmitting electrode 510 and the isolation structure 200, and a first opening 620 is formed in the insulating portion 610, and the first opening 620 is communicated with the light-transmitting opening 250.

[0097] In these alternative embodiments, an insulating portion 610 is disposed between the light-transmitting electrode 510 and the isolation structure 200. The insulating portion 610 separates the light-transmitting electrode 510 and the isolation structure 200, so that the light-transmitting electrode 510 and the isolation structure 200 are insulated from each other, avoiding electrical signal crosstalk between the light-transmitting electrode 510 and the isolation structure 200. The first opening 620 communicates with the light-transmitting opening 250, so that at least a part of the light-transmitting electrode 510 can be exposed through the first opening 620, thereby serving as the electrode of the second light-emitting unit 400 to ensure the light emission of the second light-emitting unit 400.

[0098] In some alternative embodiments, the orthographic projection of the first opening 620 on the substrate 100 is located within the orthographic projection of the light-transmitting electrode 510 on the substrate 100.

[0099] In these alternative embodiments, the orthographic projection of the first opening 620 on the substrate 100 is located within the orthographic projection of the light-transmitting electrode 510 on the substrate 100, that is, the first opening 620 is completely covered by the light-transmitting electrode 510. On the one hand, it can improve the light-emitting effect of the second light-emitting unit 400, and on the other hand, it can improve the signal shielding effect of the light-transmitting electrode 510, that is, it can further improve the mutual interference of the signals on the side of the light-transmitting electrode 510 close to the substrate 100 and the side away from the substrate 100 through the light-transmitting opening 250.

[0100] In some alternative embodiments, the orthographic projection of the surface of the isolation structure 200 facing the substrate 100 on the substrate 100 is located within the orthographic projection of the insulating portion 610 on the substrate 100.

[0101] In these alternative embodiments, the insulating portion 610 covers the surface of the isolation structure 200 facing the substrate 100, so that the light-transmitting electrode 510 and the isolation structure 200 are completely separated, so that the light-transmitting electrode 510 and the isolation structure 200 are insulated and difficult to contact, further reducing the electrical signal crosstalk between the light-transmitting electrode 510 and the isolation structure 200.

[0102] Optionally, the material of the insulating layer 600 includes an inorganic material. The insulating layer 600 made of an inorganic material has good compactness, can have a certain sealing effect on the light-transmitting electrode 510, reduce the erosion of water and oxygen on the light-transmitting electrode 510, and improve the service life of the light-transmitting electrode 510.

[0103] Please refer to Figure 7 , Figure 7 is a partial cross-sectional view of the display panel in another embodiment.

[0104] As Figure 7As shown, in some alternative embodiments, the display panel 10 further includes a pixel definition layer 700 located on the substrate 100. The pixel definition layer 700 includes pixel defining portions 710 and a pixel opening 720 formed by enclosing the pixel defining portions 710. The pixel opening 720 communicates with the isolation opening 240.

[0105] In these alternative embodiments, the pixel opening 720 formed by enclosing the pixel defining portions 710 is used to dispose a light-emitting unit to realize the light-emitting display of the display panel 10. The pixel opening 720 is communicatively disposed with the isolation opening 240 to reduce the occlusion of the isolation structure 200 on the pixel opening 720 and ensure the light-emitting effect of the first light-emitting unit 300.

[0106] In some alternative embodiments, the first light-emitting unit 300 further includes a pixel electrode 730. The orthographic projection of the pixel electrode 730 on the substrate 100 at least partially overlaps with the orthographic projection of the pixel opening 720 on the substrate 100.

[0107] In these alternative embodiments, the orthographic projection of the pixel electrode 730 on the substrate 100 at least partially overlaps with the orthographic projection of the pixel opening 720 on the substrate 100, that is, at least a part of the pixel electrode 730 is exposed by the pixel opening 720 to serve as an electrode to ensure the normal light emission of the first light-emitting unit 300.

[0108] Optionally, the pixel electrode 730 is electrically connected to a pixel driving circuit. The pixel driving electrode provides a driving signal to the pixel electrode 730, thereby driving the first light-emitting unit 300 to emit light.

[0109] In some alternative embodiments, the isolation structure 200 is located on a side of the pixel defining portion 710 away from the substrate 100.

[0110] In these alternative embodiments, the isolation structure 200 is located on the pixel defining portion 710 such that the isolation structure 200 and the pixel electrode 730 are separated by the pixel defining portion 710, avoiding the problem of electrical signal crosstalk that is likely to occur when the isolation structure 200 and the pixel electrode 730 are disposed on the same layer.

[0111] Among them, Patent No. 202311317611.4, Patent No. 202310855006.6, Patent No. 202310854718.6, and Patent No. 202311134638.X record related technical solutions of the isolation structure, the content of which is incorporated herein by reference for reference and will not be elaborated in this embodiment.

[0112] Please continue to refer to Figure 4 and Figure 5, in some alternative embodiments, the conductive layer 500 is located on the side of the pixel definition layer 700 away from the substrate 100, and the orthographic projection of the light-transmitting electrode 510 on the substrate 100 is within the orthographic projection of the pixel defining portion 710 on the substrate 100.

[0113] In these alternative embodiments, the conductive layer 500 is located on the side of the pixel definition layer 700 away from the substrate 100, such that the conductive layer 500 and the pixel electrode 730 are separated by the pixel definition layer 700, avoiding crosstalk of electrical signals between the conductive layer 500 and the pixel electrode 730 due to contact therebetween. And the orthographic projection of the light-transmitting electrode 510 on the substrate 100 is within the orthographic projection of the pixel defining portion 710 on the substrate 100, avoiding the light-transmitting electrode 510 extending into the pixel opening 720 and thus affecting the light emission of the first light-emitting unit 300.

[0114] In some alternative embodiments, a second opening 630 is formed in the insulating portion 610, and the second opening 630 communicates with the pixel opening 720.

[0115] In these alternative embodiments, the second opening 630 communicates with the pixel opening 720, such that at least a part of the pixel electrode 730 can be exposed through the second opening 630, thereby serving as the electrode of the first light-emitting unit 300 to ensure the light emission of the first light-emitting unit 300.

[0116] In some alternative embodiments, the orthographic projection of the insulating portion 610 on the substrate 100 is within the orthographic projection of the pixel defining portion 710 on the substrate 100.

[0117] In these alternative embodiments, the insulating portion 610 is completely located on the pixel defining portion 710, avoiding the insulating portion 610 extending into the pixel opening 720 and affecting the light emission of the first light-emitting unit 300, ensuring the normal light emission of the first light-emitting unit 300. Even if the insulating portion 610 is made of a light-transmitting material, if the insulating portion 610 extends into the pixel opening 720, due to the refractive index difference from other film layers, the light path is affected, that is, the light emission of the first light-emitting unit 300 is affected.

[0118] As Figure 8 shown, in some alternative embodiments, a light-emitting layer 800 is further included. The light-emitting layer 800 is located on one side of the substrate 100. The first light-emitting unit 300 includes a first light-emitting structure 810 located in the light-emitting layer 800, and the second light-emitting unit 400 includes a second light-emitting structure 820 located in the light-emitting layer 800.

[0119] In these alternative embodiments, the first light-emitting structure 810 of the first light-emitting unit 300 emits light, thereby realizing the light emission of the first light-emitting unit 300. The second light-emitting structure 820 of the second light-emitting unit 400 emits light, thereby realizing the light emission of the second light-emitting unit 400. During the light-emitting stage of the display panel 10, the pixel driving circuit provides a driving signal to the pixel electrode 730, thereby driving the first light-emitting structure 810 to emit light and realizing the light-emitting display of the display panel 10. During the photosensitive stage of the display panel 10, the photosensitive driving circuit provides a driving signal to the light-transmitting electrode 510, thereby driving the second light-emitting structure 820 to emit light. The light emitted by the second light-emitting structure 820 reaches the target surface, is reflected by the target surface, and reaches the photosensitive component through the light-transmitting opening 250 to realize the photosensitive function of the display panel 10.

[0120] Optionally, the first light-emitting structure 810 is disposed at an interval from the isolation structure 200, which means that the first light-emitting structure 810 and the isolation structure 200 are spaced apart with a certain distance, and the first electrode 910 is filled between the first light-emitting structure 810 and the isolation structure 200 to prevent the first light-emitting structure 810 from directly contacting the isolation structure 200, and the first light-emitting structures 810 are spaced apart from each other, reducing the crosstalk of carriers between the first light-emitting structures 810 and improving the color bleeding problem of the first light-emitting structure 810.

[0121] Optionally, the second light-emitting structure 820 is disposed at an interval from the isolation structure 200, which means that the second light-emitting structure 820 and the isolation structure 200 are spaced apart with a certain distance, and the second electrode 920 is filled between the second light-emitting structure 820 and the isolation structure 200 to prevent the first light-emitting structure 810 from directly contacting the isolation structure 200, and the first light-emitting structure 810 and the second light-emitting structure 820 are spaced apart from each other, reducing the crosstalk of carriers between the first light-emitting structure 810 and the second light-emitting structure 820 and improving the color bleeding problem between the first light-emitting structure 810 and the second light-emitting structure 820.

[0122] In some alternative embodiments, the display panel 10 further includes a first electrode layer 900, and the first electrode layer 900 is located on the side of the light-emitting layer �00 away from the substrate 100.

[0123] In these alternative embodiments, the first electrode layer 900 serves as the electrode of the first light-emitting structure 810 and the second light-emitting structure 820, and cooperates with the pixel electrode 730 and the light-transmitting electrode 510 to realize the light emission of the first light-emitting structure 810 and the second light-emitting structure 820.

[0124] In some alternative embodiments, the first light-emitting unit 300 includes a first electrode 910 located on the first electrode layer 900, and the second light-emitting unit 400 includes a second electrode 920 located on the first electrode layer 900. Both the first electrode 910 and the second electrode 920 are electrically connected to the isolation structure 200.

[0125] In these alternative embodiments, one of the first electrode 910 and the pixel electrode 730 serves as the cathode of the first light-emitting structure 810, and the other serves as the anode to enable the first light-emitting structure 810 to emit light. One of the second electrode 920 and the light-transmitting electrode 510 serves as the cathode of the second light-emitting structure 820, and the other serves as the anode to enable the second light-emitting structure 820 to emit light. In the embodiments of the present application, the pixel electrode 730 is taken as the anode of the first light-emitting structure 810, the first electrode 910 is taken as the cathode of the first light-emitting structure 810, the light-transmitting electrode 510 is taken as the anode of the second light-emitting structure 820, and the second electrode 920 is taken as the cathode of the second light-emitting structure 820 for illustration.

[0126] In some alternative embodiments, the orthographic projection of the first light-emitting structure 810 on the substrate 100 is located within the orthographic projection of the first electrode 910 on the substrate 100.

[0127] In these alternative embodiments, the orthographic projection of the first light-emitting structure 810 on the substrate 100 is located within the orthographic projection of the first electrode 910 on the substrate 100, that is, the first electrode 910 covers the first light-emitting structure 810 to serve as the electrode of the first light-emitting structure 810, ensuring the normal light emission of the first light-emitting structure 810 and improving the display effect of the display panel 10.

[0128] In some alternative embodiments, the orthographic projection of the second light-emitting structure 820 on the substrate 100 is located within the orthographic projection of the second electrode 920 on the substrate 100.

[0129] In these alternative embodiments, the orthographic projection of the second light-emitting structure 820 on the substrate 100 is located within the orthographic projection of the second electrode 920 on the substrate 100, that is, the second electrode 920 covers the second light-emitting structure 820 to serve as the electrode of the second light-emitting structure 820, ensuring the normal light emission of the second light-emitting structure 820 and improving the display effect of the display panel 10.

[0130] As Figure 7 shown, in some alternative embodiments, the isolation structure 200 includes a first layer 210 and a second layer 220 located on the side of the first layer 210 away from the substrate 100. The orthographic projection of the first layer 210 on the substrate 100 is located within the orthographic projection of the second layer 220 on the substrate 100.

[0131] In these alternative embodiments, the first layer 210 and the second layer 220 are stacked to form the isolation structure 200. The orthographic projection of the first layer 210 close to the substrate 100 on the substrate 100 is located within the orthographic projection of the second layer 220 on the substrate 100. The area of the orthographic projection of the second layer 220 is larger than that of the first layer 210. The second layer 220 covers the surface of the first layer 210 close to the second layer 220. At this time, the first layer 210 is recessed relative to the second layer 220 in a direction away from the isolation opening 240. When preparing the light-emitting layer 800, a large drop occurs at the edge of the isolation structure 200, and the first layer 210 is concave relative to the second layer 220. It is difficult for the light-emitting layer 800 to connect at the edge of the isolation structure 200, resulting in breakage. The light-emitting layer 800 breaks to form the mutually disconnected first light-emitting structure 810 and second light-emitting structure 820.

[0132] Optionally, the first layer 210 includes a conductive material. For example, the first layer 210 includes a non-metallic conductive material or a metallic conductive material.

[0133] In some alternative embodiments, the second layer 220 includes a conductive material or an insulating material.

[0134] In these alternative embodiments, the second layer 220 includes a conductive material. For example, the second layer 220 includes a non-metallic conductive material or a metallic conductive material. When the second layer 220 is a non-metallic conductive material or an insulating material, it is difficult to etch the second layer 220 during the wet etching of the first layer 210 using an etching solution, so that it is easier for the first layer 210 to be recessed relative to the second layer 220.

[0135] In some alternative embodiments, both the first layer 210 and the second layer 220 include metallic materials, and the materials of the first layer 210 and the second layer 220 are different.

[0136] In these alternative embodiments, when both the first layer 210 and the second layer 220 are metallic materials, an etching solution can be used for wet etching the first layer 210. By setting the etching solution, the etching rate of the second layer 220 can be made less than that of the first layer 210. Since the etching rate of the first layer 210 is large, when wet etching with the etching solution, even if the second layer 220 is etched to a certain extent, the first layer 210 is etched faster, so that the first layer 210 is recessed relative to the second layer 220.

[0137] Please refer to Figure 8 , Figure 8 which is a partial cross-sectional view of the display panel in another embodiment.

[0138] As shown in Figure 8As shown, in some alternative embodiments, the isolation structure 200 further includes a third layer 230 on the side of the first layer 210 facing the substrate 100, and the orthographic projection of the first layer 210 on the substrate 100 is within the orthographic projection of the third layer 230 on the substrate 100.

[0139] In these alternative embodiments, in order to obtain the first layer 210 with an inward concave setting, during the etching process, the first layer 210 has a faster etching rate relative to the second layer 220 and the third layer 230, thereby forming the inward concave first layer 210. Since the etching rate of the first layer 210 is relatively fast, more etching waste is likely to enter other positions of the display panel 10, thus causing adverse effects. After the third layer 230 is provided, the first layer 210 can be better attached to the third layer 230, and the generated etching waste falls on the third layer 230, facilitating cleaning.

[0140] Optionally, the light-emitting layer 800 includes an electron injection layer (EIL), an electron transport layer (ETL), a light-emitting material layer, a hole injection layer (HIL), and a hole transport layer (HTL).

[0141] Please refer to Figure 9 , Figure 9 which is a partial cross-sectional view of the display panel in yet another embodiment.

[0142] As Figure 9 shown, an embodiment of the second aspect of the present application provides a display panel 10. The display panel 10 has a display area AA1, and the display area AA1 includes a light-transmitting area AA2. The display panel 10 further includes a substrate 100, a pixel definition layer 700, a conductive layer 500, an insulating layer 600, and an isolation structure 200. The pixel definition layer 700 is located on one side of the substrate 100. The pixel definition layer 700 includes pixel defining portions 710 and pixel openings 720 formed by enclosing the pixel defining portions 710. The conductive layer 500 is located on the side of the pixel definition layer 700 facing away from the substrate 100. The conductive layer 500 includes a light-transmitting electrode 510. The insulating layer 600 is located on the side of the conductive layer 500 facing away from the substrate 100. The insulating layer 600 includes an insulating portion 610 located between the light-transmitting electrode 510 portion and the isolation structure 200. A first opening 620 is formed in the insulating portion 610. The isolation structure 200 is located on the side of the insulating layer 600 facing away from the substrate 100. The isolation structure 200 encloses a separation opening 240 and a light-transmitting opening 250. The separation opening 240 communicates with the pixel opening 720. The light-transmitting opening 250 is located in the light-transmitting area AA2 and communicates with the first opening 620. The orthographic projection of the light-transmitting electrode 510 on the substrate 100 and the orthographic projection of the light-transmitting opening 250 on the substrate 100 at least partially overlap. A first light-emitting structure 810 is provided in the separation opening 240, and a second light-emitting structure 820 is provided in the light-transmitting opening 250.

[0143] According to the display panel 10 of an embodiment of the present application, the display panel 10 includes a substrate 100, a pixel definition layer 700, a conductive layer 500, an insulating layer 600, and an isolation structure 200. The pixel opening 720 formed by surrounding the pixel defining portion 710 is used to set a first light-emitting structure 810 to realize the light-emitting display of the display panel 10. The isolation structure 200 is disposed on the substrate 100 and surrounds to form a plurality of isolation openings 240 and light-transmitting openings 250, so as to dispose a first light-emitting unit 300 in the isolation openings 240 and a second light-emitting unit 400 in the light-transmitting openings 250. The light-transmitting opening 250 can improve the transmittance of the display panel 10 in the light-transmitting area AA2, thereby improving the photosensitive effect of the display panel 10 in the light-transmitting area AA2. The pixel opening 720 is communicatively disposed with the isolation opening 240 to reduce the shielding of the isolation structure 200 from the pixel opening 720 and ensure the light-emitting effect of the first light-emitting unit 300. The orthographic projection of the light-transmitting electrode 510 on the substrate 100 overlaps at least partially with the orthographic projection of the light-transmitting opening 250 on the substrate 100, that is, at least part of the light-transmitting electrode 510 is exposed by the light-transmitting opening 250, so as to serve as an electrode of the second light-emitting unit 400 to ensure the light emission of the second light-emitting unit 400. The light-transmitting electrode 510 is electrically connected to the photosensitive driving circuit. When the display panel 10 is in the photosensitive stage, the photosensitive driving circuit transmits a driving signal to the light-transmitting electrode 510 to make the second light-emitting unit 400 emit light. The light emitted by the second light-emitting unit 400 reaches the target surface, is reflected by the target surface, and passes through the light-transmitting opening 250 to reach the photosensitive component, so as to realize the photosensitive function of the display panel 10. And at least part of the light-transmitting electrode 510 is exposed by the light-transmitting opening 250, which can improve the mutual interference of the signals on the side of the light-transmitting electrode 510 close to the substrate 100 and the signals on the side away from the substrate 100 passing through the light-transmitting opening 250. An insulating portion 610 is disposed between the light-transmitting electrode 510 and the isolation structure 200. The insulating portion 610 separates the light-transmitting electrode 510 and the isolation structure 200, so that the light-transmitting electrode 510 and the isolation structure 200 are insulated from each other to avoid electrical signal crosstalk between the light-transmitting electrode 510 and the isolation structure 200. The first opening 620 is communicatively connected to the light-transmitting opening 250, so that at least part of the light-transmitting electrode 510 can be exposed by the first opening 620, so as to serve as an electrode of the second light-emitting unit 400 to ensure the light emission of the second light-emitting unit 400.

[0144] For the structural design in this embodiment, it can be applied to other display panels 10, and specific selection can be made according to actual situations. The present application does not specifically limit it.

[0145] An embodiment of the third aspect of the present application further provides a display device, including the display panel 10 of any of the above-mentioned first and second aspect embodiments. Since the display device provided by the embodiment of the third aspect of the present application includes the display panel 10 of any of the above-mentioned first and second aspect embodiments, the display device provided by the embodiment of the third aspect of the present application has the beneficial effects of the display panel 10 of any of the above-mentioned first and second aspect embodiments, which will not be elaborated here.

[0146] The display device in the embodiments of the present application includes, but is not limited to, devices with a display function such as mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control devices, smart landline phones, and consoles.

[0147] An embodiment of the fourth aspect of the present application further provides a method for manufacturing a display panel 10. The display panel 10 may be the display panel 10 provided by any of the above-mentioned first and second aspect embodiments. Please refer to Figures 1 to 9 the display panel 10, and refer to Figure 10 , Figure 10 which is a schematic flowchart of a method for manufacturing a display panel provided by an embodiment of the present application. The display panel 10 has a display area AA1, and the display area AA1 includes a light-transmitting area AA2. The manufacturing method includes:

[0148] Step S01: Prepare a pixel driving circuit and a photosensitive driving circuit on a substrate.

[0149] Step S02: Prepare an isolation structure on the substrate. The isolation structure encloses an isolation opening and a light-transmitting opening. The isolation opening is located in the display area, and the light-transmitting opening is located in the light-transmitting area.

[0150] Step S03: Prepare a first light-emitting unit and a second light-emitting unit on the substrate. The first light-emitting unit is located in the isolation opening and is electrically connected to the pixel driving circuit, and the second light-emitting unit is located in the light-transmitting opening and is electrically connected to the photosensitive driving circuit.

[0151] According to the preparation method of the embodiments of the present application, a pixel driving circuit and a photosensitive driving circuit are prepared through step S01. An isolation structure 200 is prepared through step S02. The isolation structure 200 is disposed on the substrate 100 and encloses to form a plurality of isolation openings 240 and light-transmitting openings 250, so as to dispose a first light-emitting unit 300 in the isolation openings 240 and a second light-emitting unit 400 in the light-transmitting openings 250. The light-transmitting openings 250 can improve the transmittance of the display panel 10 in the light-transmitting area AA2, thereby improving the photosensitive effect of the display panel 10 in the light-transmitting area AA2. The first light-emitting unit 300 and the second light-emitting unit 400 are prepared through step S03. The isolation structure 200 is disposed on the substrate 100 and encloses to form a plurality of isolation openings 240 and light-transmitting openings 250, so as to dispose a first light-emitting unit 300 in the isolation openings 240 and a second light-emitting unit 400 in the light-transmitting openings 250. The light-transmitting openings 250 can improve the transmittance of the display panel 10 in the light-transmitting area AA2, thereby improving the photosensitive effect of the display panel 10 in the light-transmitting area AA2.

[0152] An embodiment of the fifth aspect of the present application provides a driving method for driving the display panel 10 of any of the above embodiments. The display panel 10 has a light-emitting stage and a photosensitive stage. The method includes:

[0153] In the light-emitting stage, the pixel driving circuit is made to drive the first light-emitting unit 300 to emit light, and the second light-emitting unit 400 does not emit light;

[0154] In the photosensitive stage, the photosensitive driving circuit is made to drive the second light-emitting unit 400 to emit light, and the first light-emitting unit 300 does not emit light.

[0155] According to the driving method of the embodiments of the present application, in the light-emitting stage of the display panel 10, the pixel driving circuit drives the first light-emitting unit 300 to emit light to realize the light-emitting display of the display panel 10. In the photosensitive stage of the display panel 10, the photosensitive driving circuit drives the second light-emitting unit 400 to emit light. The light emitted by the second light-emitting unit 400 reaches the target surface, is reflected by the target surface and passes through the light-transmitting opening 250 to reach the photosensitive component, so as to realize the photosensitive function of the display panel 10. It can improve the problem that when only the first light-emitting unit 300 exists in the light-transmitting area AA2, the first light-emitting unit 300 located in the light-transmitting area AA2 emits light in both the light-emitting stage and the photosensitive stage, and the lighting time of the first light-emitting unit 300 located in the light-transmitting area AA2 is longer than that of the first light-emitting unit 300 in the display area AA1, resulting in a faster brightness attenuation of the first light-emitting unit 300 located in the light-transmitting area AA2, thereby improving the service performance of the OLED display product.

[0156] In accordance with the embodiments of the present application as described above, these embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the above description. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and its modifications based on the present application. The present application is only limited by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that, The display panel has a display area, the display area includes a light-transmitting region, and the display panel further includes: a substrate; an isolation structure located on one side of the substrate, the isolation structure enclosing an isolation opening and a light-transmitting opening located in the light-transmitting region; a first light-emitting unit located in the isolation opening; a second light-emitting unit located in the light-transmitting opening; a pixel driving circuit disposed on the substrate and electrically connected to the first light-emitting unit, the pixel driving circuit being configured to drive the first light-emitting unit to emit light; a photosensitive driving circuit disposed on the substrate and electrically connected to the second light-emitting unit, the photosensitive driving circuit being configured to drive the second light-emitting unit to emit light.

2. The display panel according to claim 1, wherein The display panel further includes: a conductive layer located between the substrate and the isolation structure, the second light-emitting unit includes a light-transmitting electrode located on the conductive layer, a positive projection of the light-transmitting electrode on the substrate at least partially overlaps with a positive projection of the light-transmitting opening on the substrate, and the light-transmitting electrode is electrically connected to the photosensitive driving circuit; Preferably, a positive projection of the light-transmitting opening on the substrate is located within a positive projection of the light-transmitting electrode on the substrate; Preferably, the second light-emitting unit includes a green light-emitting unit; Preferably, the pixel driving circuit and the photosensitive driving circuit are independent of each other.

3. The display panel according to claim 2, wherein The conductive layer further includes a connecting portion, at least a part of the connecting portion is located in the display area, one end of the connecting portion is connected to the light-transmitting electrode, and the other end is connected to the photosensitive driving circuit; Preferably, an extending direction of the connecting portion is the same as an extending direction of at least a part of the isolation structure; Preferably, the display panel further includes a non-display area located on at least one side of the display area, the photosensitive driving circuit is located in the non-display area, and a part of the connecting portion is located in the non-display area to connect the photosensitive driving circuit; Preferably, the pixel driving circuit is located in the display area, and the photosensitive driving circuit is located in the non-display area.

4. The display panel according to claim 2, wherein The display panel further includes: an insulating layer located on a side of the conductive layer away from the substrate, the insulating layer includes an insulating portion located between the light-transmitting electrode and the isolation structure, and a first opening is formed in the insulating portion, and the first opening communicates with the light-transmitting opening; Preferably, a positive projection of the first opening on the substrate is located within a positive projection of the light-transmitting electrode on the substrate; Preferably, a positive projection of a surface of the isolation structure facing the substrate on the substrate is located within a positive projection of the insulating portion on the substrate; Preferably, the material of the insulating layer includes an inorganic material.

5. The display panel according to claim 4, wherein The display panel further includes: a pixel definition layer located on the substrate, the pixel definition layer includes a pixel defining portion and a pixel opening formed by enclosing the pixel defining portion, and the pixel opening communicates with the isolation opening; ​ ​ Preferably, a second opening is formed on the insulating portion, and the second opening is connected to the pixel opening; Preferably, the orthographic projection of the insulating portion on the substrate is located within the orthographic projection of the pixel defining portion on the substrate; Preferably, the first light-emitting unit further includes a pixel electrode, and the orthographic projection of the pixel electrode on the substrate at least partially overlaps with the orthographic projection of the pixel opening on the substrate; Preferably, the pixel electrode and the pixel driving circuit are electrically connected.

6. The display panel according to claim 1, wherein Also includes: a light-emitting layer located on one side of the substrate, wherein the first light-emitting unit includes a first light-emitting structure located on the light-emitting layer, and the second light-emitting unit includes a second light-emitting structure located on the light-emitting layer; Preferably, the first light emitting structure and the isolation structure are spaced apart; Preferably, the second light-emitting structure and the isolation structure are spaced apart.

7. The display panel according to claim 6, wherein The display panel further includes: a first electrode layer, located on a side of the light-emitting layer facing away from the substrate; Preferably, the first light-emitting unit includes a first electrode located in the first electrode layer, the second light-emitting unit includes a second electrode located in the first electrode layer, and the first electrode and the second electrode are both electrically connected to the isolation structure; Preferably, the orthographic projection of the first light-emitting structure on the substrate is located within the orthographic projection of the first electrode on the substrate; Preferably, the orthographic projection of the second light-emitting structure on the substrate is located within the orthographic projection of the second electrode on the substrate; Preferably, the isolation structure includes a first layer and a second layer located on a side of the first layer facing away from the substrate, and the orthographic projection of the first layer on the substrate is located within the orthographic projection of the second layer on the substrate; Preferably, the first layer comprises a conductive material; Preferably, the second layer comprises a conductive material or an insulating material; Preferably, the first layer and the second layer both comprise metal materials, and the materials of the first layer and the second layer are different; Preferably, the isolation structure further includes a third layer located on a side of the first layer facing the substrate, and an orthographic projection of the first layer on the substrate is located within an orthographic projection of the third layer on the substrate.

8. A display panel, characterized in that, The display panel has a display area, the display area includes a light-transmitting area, and the display panel further includes: substrate, a pixel definition layer, located on one side of the substrate, the pixel definition layer comprising a pixel defining portion and a pixel opening enclosed by the pixel defining portion; a conductive layer, located on a side of the pixel definition layer facing away from the substrate, the conductive layer comprising a light-transmitting electrode; an insulating layer, located on a side of the conductive layer facing away from the substrate, the insulating layer comprising an insulating portion, and a first opening is formed on the insulating portion; An isolation structure is located on a side of the insulating layer facing away from the substrate. The isolation structure encloses an isolation opening and a light-transmitting opening. The isolation opening communicates with the pixel opening. The insulating portion is located between the light-transmitting electrode portion and the isolation structure. The light-transmitting opening is located in the light-transmitting region and communicates with the first opening. A positive projection of the light-transmitting electrode on the substrate at least partially overlaps a positive projection of the light-transmitting opening on the substrate. The isolation opening is provided with a first light-emitting structure, and the light-transmitting opening is provided with a second light-emitting structure.

9. A display device, characterized in that, The display panel includes any one of claims 1-8.

10. A method for preparing a display panel, characterized in that, The display panel has a display area, and the display area includes a light-transmitting region. The method includes: Fabricating a pixel driving circuit and a photosensitive driving circuit on the substrate; Fabricating an isolation structure on the substrate. The isolation structure encloses an isolation opening and a light-transmitting opening. The isolation opening is located in the display area, and the light-transmitting opening is located in the light-transmitting region; Fabricating a first light-emitting unit and a second light-emitting unit on the substrate. The first light-emitting unit is located in the isolation opening and is electrically connected to the pixel driving circuit. The second light-emitting unit is located in the light-transmitting opening and is electrically connected to the photosensitive driving circuit.

11. A driving method for driving a display panel as described in any one of claims 1-8, characterized in that, The display panel has a light-emitting stage and a photosensitive stage. The method includes: In the light-emitting stage, causing the pixel driving circuit to drive the first light-emitting unit to emit light, and the second light-emitting unit not to emit light; In the photosensitive stage, causing the photosensitive driving circuit to drive the second light-emitting unit to emit light, and the first light-emitting unit not to emit light.

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