WO2023231256A1 - Écran d'affichage, dispositif d'affichage et procédé de fabrication d'écran d'affichage - Google Patents

Écran d'affichage, dispositif d'affichage et procédé de fabrication d'écran d'affichage Download PDF

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Publication number
WO2023231256A1
WO2023231256A1 PCT/CN2022/122431 CN2022122431W WO2023231256A1 WO 2023231256 A1 WO2023231256 A1 WO 2023231256A1 CN 2022122431 W CN2022122431 W CN 2022122431W WO 2023231256 A1 WO2023231256 A1 WO 2023231256A1
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Prior art keywords
electrode
layer
display panel
transparent
array substrate
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PCT/CN2022/122431
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English (en)
Chinese (zh)
Inventor
金玉
徐磊
顾维杰
李磊
陆蕴雷
王恩来
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昆山国显光电有限公司
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Publication of WO2023231256A1 publication Critical patent/WO2023231256A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/1259—Multistep manufacturing methods
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/1201—Manufacture or treatment
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/122—Pixel-defining structures or layers, e.g. banks

Definitions

  • the present application relates to the field of display, and specifically to a display panel, a display device, and a method for preparing a display panel.
  • Embodiments of the present application provide a display panel, a display device, and a method for manufacturing a display panel, so that at least part of the display panel can be light-transmissive and displayable, thereby facilitating the under-screen integration of photosensitive components.
  • An embodiment of the first aspect of the present application provides a display panel, including: an array substrate including a first drive circuit; a first electrode layer located on one side of the array substrate, the first electrode layer including first electrodes distributed in an array; a transparent conductive layer, including a first transparent electrode stacked with the first electrode, a first transparent lead used to connect the first transparent electrode and the corresponding first drive circuit; a pixel definition layer, including an isolation portion and an isolation portion surrounded by the first pixel opening, the first electrode is located in the first pixel opening, and at least part of the edge of the first electrode is spaced apart from the isolation portion.
  • the display panel further includes a planarization layer located between the array substrate and the first electrode layer; the first transparent electrode is disposed on a side of the first electrode away from the planarization layer, and the first transparent electrode is disposed on a side of the first electrode away from the planarization layer.
  • the orthographic projection of the electrode on the array substrate is located within the orthographic projection of its corresponding first transparent electrode on the array substrate.
  • the first transparent electrode includes a first planar part, a second planar part and an inclined part connecting the first planar part and the second planar part, and both the first planar part and the first electrode Disposed on a side surface of the planarization layer facing away from the substrate, the second planar portion overlaps the first electrode;
  • a portion of the first planar portion is located between the isolation portion and the planarization layer.
  • the display panel includes a first display area and a second display area, the light transmittance of the first display area is greater than the light transmittance of the second display area, and the first pixel opening is located in the first display area.
  • the pixel definition layer of the display area also includes a second pixel opening located in the second display area, the first electrode layer further includes a second electrode located in the second display area, and the first driving circuit is located in the second display area.
  • the second pixel opening is larger than the first pixel opening.
  • each second electrode is provided corresponding to each second pixel opening, and the orthographic projection area of the second electrode on the array substrate is larger than the area of its corresponding second pixel opening.
  • At least part of the first driving circuit is connected to at least two first transparent electrodes.
  • the material of the first electrode includes at least one of magnesium and silver.
  • the first electrode includes a first indium tin oxide layer, a first metal silver layer and a second indium tin oxide layer that are sequentially stacked in a direction away from the planarization layer.
  • the material of the first transparent electrode includes indium tin oxide.
  • the transparent conductive layer is an indium tin oxide layer.
  • a second embodiment of the present application provides a display device, which includes the display panel of any of the above embodiments.
  • a third embodiment of the present application provides a method for manufacturing a display panel, including:
  • a transparent conductive layer is prepared on the array substrate.
  • the transparent conductive layer includes a first transparent electrode stacked with the first electrode, and a first transparent lead connecting the first transparent electrode and the corresponding first drive circuit;
  • the pixel definition layer includes an isolation part and a first pixel opening surrounded by the isolation part.
  • the first electrode is located in the first pixel opening, and at least part of the edge of the first electrode is spaced from the isolation part. set up;
  • a first light-emitting unit is prepared within the first pixel opening.
  • the display panel includes an array substrate, a first electrode layer disposed on one side of the array substrate, a transparent conductive layer and a pixel definition layer.
  • the first electrode layer includes a first electrode.
  • the transparent conductive layer includes a first transparent electrode and a first transparent lead.
  • the first transparent lead is used to connect the first transparent electrode and the first driving circuit.
  • the first transparent electrode and the first electrode are stacked, so the first electrode can pass through the first
  • the transparent electrode and the first transparent lead are electrically connected to the first driving circuit, so that the first driving circuit can drive the first electrode.
  • the pixel definition layer includes a first pixel opening surrounded by an isolation portion. The first pixel opening is used to set a light-emitting unit.
  • the first driving circuit can cause the first light-emitting unit to emit light by driving the first electrode.
  • the first transparent electrode and the first transparent lead can ensure the light transmittance of the display panel and facilitate the under-screen integration of the photosensitive component.
  • the first electrode can ensure the microcavity effect and improve the display effect of the display panel. At least part of the edge of the first electrode is spaced apart from the isolation part. That is, the area of the first electrode is small. The gap between the edge of the first electrode and the isolation part can improve the display quality while keeping the area of the first pixel opening unchanged.
  • the light transmittance of the panel can be provided.
  • Figure 1 is a schematic top view of a display panel provided according to an embodiment of the present application.
  • Figure 2 is a partial enlarged view of the Q area in Figure 1 in an example
  • Figure 3 is a cross-sectional view at B-B in Figure 2;
  • Figure 4 is a partial enlarged structural diagram of position I in Figure 3;
  • Figure 5 is a top view of a partial layer structure of a display panel provided by another embodiment of the present application.
  • Figure 6 is a partial enlarged structural diagram of Figure 5
  • Figure 7 is a schematic top view of a display device provided by an embodiment of the present application.
  • Figure 8 is a cross-sectional view along the D-D direction in Figure 7;
  • FIG. 9 is a schematic flowchart of a method for manufacturing a display panel provided by an embodiment of the present application.
  • Display panel 200. Photosensitive component; S1, first surface; S2, second surface;
  • First electrode layer 310. First electrode; 320. Second electrode;
  • Transparent conductive layer 410. First transparent electrode; 411. First planar part; 412. Second planar part; 413. Inclined part; 420. First transparent lead;
  • Pixel definition layer 510. Isolation part; K1, first pixel opening; 520, first light-emitting unit; K2, second pixel opening; 530, second light-emitting unit;
  • AA1 first display area
  • AA2 second display area
  • NA non-display area
  • a light-transmitting display area can be provided on the above-mentioned electronic device, and the photosensitive component can be arranged on the back of the light-transmitting display area, so as to achieve a full-screen display of the electronic device while ensuring the normal operation of the photosensitive component.
  • the light-transmitting display area includes sub-pixels so that the light-transmitting display area can display.
  • light-transmitting materials such as indium tin oxide
  • the pixel electrodes are directly prepared from light-transmitting materials, the microcavity effect in the light-transmitting display area will be extremely low.
  • the low luminous efficiency of the sub-pixels will make the luminous brightness of the light-transmitting display area significantly different from that of the main display area.
  • the applicant reduced the pixel electrodes of the light-transmitting display area to ensure the light transmittance of the light-transmitting display area.
  • the light-transmitting display area when the sub-pixels of the main display area and the light-transmitting display area emit the same brightness, the light-transmitting display area The current density of the inner pixel electrode will be greater than the current density of the pixel electrode in the main display area, resulting in a decrease in the life of the pixel electrode in the light-transmitting display area.
  • embodiments of the present application provide a display panel, a display device, and a method for manufacturing a display panel.
  • a display panel In order to solve the above problems, embodiments of the present application provide a display panel, a display device, and a method for manufacturing a display panel.
  • Each embodiment of the display panel and display device will be described below with reference to the accompanying drawings.
  • An embodiment of the present application provides a display panel, which may be an organic light emitting diode (OLED) display panel.
  • a display panel which may be an organic light emitting diode (OLED) display panel.
  • FIG. 1 is a schematic top view of a display panel 100 provided according to an embodiment of the present application.
  • FIG. 2 is a partial enlarged view of the Q area in FIG. 1 in an example.
  • FIG. 3 is a cross-sectional view taken along line B-B in FIG. 2 .
  • the display panel 100 provided by the first embodiment of the present application includes an array substrate 10 , a planarization layer 20 , a first electrode layer 30 , a transparent conductive layer 40 and a pixel definition layer 50 : array substrate 10 includes a first driving circuit 110; the planarization layer 20 is located on one side of the array substrate 10; the first electrode layer 30 is located on the side of the planarization layer 20 away from the array substrate 10, and the first electrode layer 30 includes an array-distributed first electrode. 310.
  • the transparent conductive layer 40 includes a first transparent electrode 410 that is stacked with the first electrode 310 and a first transparent lead 420 used to connect the first transparent electrode 410 with the corresponding first driving circuit 110 .
  • the pixel definition layer 50 includes an isolation portion 510 and a first pixel opening K1 surrounded by the isolation portion 510 .
  • the first electrode 310 is located in the first pixel opening K1, and at least part of the edge of the first electrode 310 is spaced apart from the isolation portion 510.
  • a first light-emitting unit 520 is provided in each first pixel opening K1.
  • the display panel 100 includes an array substrate 10 , a planarization layer 20 disposed on one side of the array substrate 10 , a first electrode layer 30 , a transparent conductive layer 40 and a pixel definition layer 50 .
  • the first electrode layer 30 includes a first electrode 310 .
  • the transparent conductive layer 40 includes a first transparent electrode 410 and a first transparent lead 420.
  • the first transparent lead 420 is used to connect the first transparent electrode 410 and the first driving circuit 110.
  • the first transparent electrode 410 and the first electrode layer 30 are stacked.
  • the first electrode 310 can be electrically connected to the first driving circuit 110 through the first transparent electrode 410 and the first transparent lead 420, so that the first driving circuit 110 can drive the first electrode 310.
  • the pixel definition layer 50 includes a first pixel opening K1 formed by an isolation portion 510.
  • the first pixel opening K1 is used to set a light-emitting unit.
  • the first driving circuit 110 can cause the first light-emitting unit 520 to emit light by driving the first electrode 310.
  • the first transparent electrode 410 and the first transparent lead 420 can improve the light transmittance of the display panel 100 and facilitate the under-screen integration of photosensitive components.
  • the first electrode 310 can ensure the microcavity effect and improve the display effect of the display panel 100 .
  • At least part of the edge of the first electrode 310 is spaced apart from the isolation part 510 , that is, the area of the first electrode 310 is small, and the gap between at least part of the edge of the first electrode 310 and the isolation part 510 can be smaller than the area of the first pixel opening K1 When the temperature changes, the light transmittance of the display panel 100 is increased.
  • the array substrate 10 can be arranged in a variety of ways.
  • the array substrate 10 includes a substrate, and the substrate can be made of glass, polyimide (PI), or other light-transmitting materials.
  • the array substrate 10 may also include a support layer located on the side of the substrate away from the active layer, and the support layer may include a steel plate layer and/or a foam layer.
  • a layer structure such as a buffer layer can also be provided between the substrate and the active layer.
  • the front projection area of the first electrode 310 on the array substrate 10 is smaller than the front projection area of its corresponding first pixel opening K1 on the array substrate 10 . It can be understood that along the thickness direction of the pixel definition layer 500, the cross-sections of the first pixel opening K1 are different.
  • the orthographic projection of the first pixel opening K1 on the array substrate 10 can be understood as the minimum cross-section of the first pixel opening K1, that is, The first pixel opening K1 is an opening size facing one end of the planarization layer 20 .
  • the orthographic projection area of the first electrode 310 on the array substrate 10 is smaller than the orthographic projection area of its corresponding first pixel opening K1 on the array substrate 10 , at least part of the edge of the first electrode 310 and the isolation portion 510 are directed toward the first pixel.
  • the inner wall surface of the opening K1 is spaced apart in front.
  • the first transparent lead 420 penetrates the planarization layer 20 and is connected to the first driving circuit 110 . That is, the planarization layer 20 includes a via hole disposed therethrough, and the first transparent lead 420 is connected to the first driving circuit 110 through the via hole on the planarization layer 20 .
  • the display panel 100 also includes a second transparent lead 80.
  • the second transparent lead 80 is located on the side of the planarization layer 20 facing the array substrate 10, and a via hole is opened on the planarization layer 20.
  • the second transparent lead 80 and The first transparent lead 420 is connected through the via hole on the planarization layer 20 , and the second transparent lead 80 is connected between the first driving circuit 110 and the first transparent lead 420 .
  • the first transparent electrode 410 is disposed on a side of the first electrode 310 away from the planarization layer 20 , and the first pixel opening K1 is located at the orthographic projection of the substrate.
  • the corresponding first transparent electrode 410 is within the orthographic projection of the array substrate 10 .
  • the front projection area of the first transparent electrode 410 on the array substrate 10 is larger than the front projection area of its corresponding first pixel opening K1 on the array substrate 10 .
  • the first electrode 310 and the isolation portion 510 are spaced apart from each other toward the inner wall surface of the first pixel opening K1 , and at least part of the first transparent electrode 410 is in the first pixel opening.
  • the interior of K1 is in direct contact with the surface of the planarization layer 20.
  • the first transparent electrode 410 extends from the surface of the planarization layer 20 to the side of the first electrode 310, and then part of the first transparent electrode 410 is in direct contact with the surface of the planarization layer 20.
  • the electrode 410 is located on a side of the first electrode 310 away from the planarization layer 20 and is stacked with the first electrode 310 . Therefore, at least part of the first transparent electrode 410 can form an inclined surface covering the side surface of the first electrode 310 in the first pixel opening K1, which can increase the surface area of the first transparent electrode 410 facing the first pixel opening K1, thereby increasing the area of the first transparent electrode 410. 410 and the contact area of the light-emitting unit in the first pixel opening K1, thereby improving the light-emitting effect and ensuring the display effect of the display panel 100.
  • the first transparent electrode 410 includes a first planar portion 411, a second planar portion 412, and an inclination connecting the first planar portion 411 and the second planar portion 412.
  • the portion 413 , the first planar portion 411 and the first electrode 310 are all disposed on a side surface of the planarization layer 20 facing away from the substrate, and the second planar portion 412 and the first electrode 310 overlap.
  • a portion of the first planar portion 411 is located between the isolation portion 510 and the planarization layer 20 .
  • both the first planar portion 411 and the second planar portion 412 are arranged at intervals in the orthographic projection of the array substrate 10 .
  • the part of the first transparent electrode 410 covering the side of the first electrode 310 forms the inclined part 413
  • the part of the first transparent electrode 410 overlapping the first electrode 310 is the second planar part 412
  • the first The portion of the transparent electrode 410 located on the outer peripheral side of the first electrode 310 is the first planar portion 411 .
  • the first planar portion 411 and the second planar portion 412 are connected to each other through the inclined portion 413, and the orthographic projections of the first planar portion 411 and the second planar portion 412 are spaced apart, which can increase the distance between the first transparent electrode 410 and the first pixel opening K1 surface area.
  • part of the first planar portion 411 is located within the first pixel opening K1.
  • the surface area of the first transparent electrode 410 facing the first pixel opening K1 can be increased, thereby increasing the contact area between the first transparent electrode 410 and the first light-emitting unit 520 .
  • the area of the first electrode 310 can be appropriately reduced, thereby improving the light transmittance of the area where the first electrode 310 is located.
  • the display panel 100 has a first display area AA1 , a second display area AA2 and a non-display area NA surrounding the first display area AA1 and the second display area AA2 .
  • the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA2.
  • the light transmittance of the first display area AA1 is greater than or equal to 15%.
  • the light transmittance of each functional film layer of the display panel 100 in this embodiment is greater than 80%. Even the light transmittance of at least some functional film layers is greater than 90%.
  • the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA2, so that the display panel 100 can integrate the photosensitive component 200 on the back side of the first display area AA1 to achieve, for example, The photosensitive component 200 of the camera is integrated under the screen, and at the same time, the first display area AA1 can display images, thereby increasing the display area of the display panel 100 and realizing a full-screen design of the display device.
  • the first transparent electrode 410, the first transparent lead 420, the first pixel opening K1 and the first electrode 310 are located in the first display area AA1 to improve the light transmittance of the first display area AA1 and facilitate the display in the first display area AA1.
  • a photosensitive component is integrated under the screen in area AA1 and improves the display effect of the first display area AA1.
  • the pixel definition layer 50 further includes a second pixel opening K2 located in the second display area AA2, and the second pixel opening K2 is larger than the first pixel opening K1.
  • a second light-emitting unit 530 is provided in the second pixel opening K2.
  • the first light-emitting unit 520 and the second light-emitting unit 530 are sub-pixel units of the same color.
  • the orthographic projection area of the second pixel opening K2 on the array substrate 10 is larger than the orthographic projection area of the first pixel opening K1 on the array substrate 10 . Since the area of the first pixel opening K1 is small, the area of the first electrode 310 disposed in the first pixel opening K1 is also small, which can improve the light transmittance of the first display area AA1.
  • the surface area of the first transparent electrode 410 facing the first pixel opening K1 Larger, that is, the inclined portion 413 increases the actual contact area between the first transparent electrode 410 and the first light-emitting unit 520, improves the light-emitting effect of the first light-emitting unit 520, and improves the light-emitting effect of the first light-emitting unit 520 and the second light-emitting unit 530.
  • the brightness difference further improves the display difference between the first display area AA1 and the second display area AA2 and improves the display effect of the display panel 100 .
  • the first electrode layer 30 also includes a second electrode 320 located in the second display area AA2, and each second electrode 320 is provided corresponding to each second pixel opening K2.
  • the orthographic projection area of the two electrodes 320 on the array substrate 10 is larger than the corresponding area of the second pixel opening K2.
  • Part of the second electrode 320 is located between the pixel definition layer 50 and the planarization layer 20 to ensure that no planarization layer 20 is exposed from the second pixel opening K2, which can increase the distribution area of the second electrode 320 in the second pixel opening K2 and improve The luminous efficiency of the second light-emitting unit 530.
  • the first electrode 310 is smaller than the front projection area of the first electrode 310.
  • the orthographic projection area of a pixel opening K1 therefore, the orthographic projection area of the second electrode 320 used to drive the same color light-emitting unit on the array substrate 10 is larger than the orthographic projection area of the first electrode 310 on the array substrate 10.
  • the display panel 100 further includes a first sub-pixel 60 located in the first display area AA1 and a second sub-pixel 70 located in the second display area AA2.
  • the first sub-pixel 60 includes the above-mentioned first electrode 310 , a first light-emitting unit 520 and a third electrode 910 .
  • the third electrode 910 is located on a side of the first light-emitting unit 520 away from the first electrode 310 .
  • the first electrode 310 and the third electrode 910 are used to interact with each other to cause the first light-emitting unit 520 to emit light.
  • the display panel 100 further includes the second transparent lead 80 connecting the first transparent lead 420 and the first driving circuit 110 .
  • This application uses only one second transparent lead 80 shown in FIG. 2 to connect the first driving circuit 110 and a first sub-pixel 60 for illustration.
  • Other second transparent leads 80 are not shown, but are not limited to one first driving circuit.
  • 110 is connected to one first sub-pixel 60, or one first driving circuit 110 is connected to multiple first sub-pixels 60.
  • the position of one of the first driving circuits 110 is illustrated as an example, and it is electrically connected to the corresponding first sub-pixel 60 .
  • the number of the first driving circuits 110 may be multiple, and they are respectively electrically connected to the corresponding first sub-pixels 60 through the first transparent wires 420 .
  • the circuit structure of the first driving circuit 110 is any one of a 2T1C circuit, a 7T1C circuit, a 7T2C circuit, or a 9T1C circuit.
  • “2T1C circuit” refers to the first driving circuit 110 including two thin film transistors (T) and one capacitor (C). Other “7T1C circuits", “7T2C circuits", and “9T1C circuits” ” and so on.
  • the array substrate 10 further includes a second driving circuit 120 .
  • the second driving circuit 120 is connected to the second sub-pixel 70 and is used to drive the second sub-pixel 70 to emit light.
  • the second sub-pixel 70 includes a second electrode 320 , a second light-emitting unit 530 and a fourth electrode 920 located on a side of the second light-emitting unit 530 away from the second electrode 320 .
  • the fourth electrode 920 and the third electrode 910 may be interconnected as surface electrodes.
  • the second driving circuit 120 and the second electrode 320 are connected to each other.
  • the first driving circuit 110 is connected to at least two first transparent electrodes 410 , which can simplify the structure and quantity of the first driving circuit 110 and reduce the size of the first driving circuit 110 .
  • the number of transparent leads 420 or second transparent leads 80 can increase the light transmittance of the first display area AA1.
  • the first driving circuit 110 is located in the second display area AA2, and the first driving circuit 110 used to drive the display of the first sub-pixel 60 in the first display area AA1 is located in the second display area AA2, which can further reduce the first The distribution area of the metal material in the display area AA1 is displayed and the light transmittance of the first display area AA1 is improved.
  • the material of the first electrode 310 includes at least one of magnesium and silver.
  • the first electrode 310 is sequentially stacked with a first indium tin oxide layer, a first metallic silver layer, and a second indium tin oxide layer in a direction away from the planarization layer 20 .
  • the adhesion ability of the first electrode 310 can be improved, so that the first electrode 310 can be stably attached to the planarization layer 20 .
  • a second indium tin oxide layer is provided on the side of the first metallic silver layer away from the planarization layer 20.
  • the second indium tin oxide layer can provide protection to the first metallic silver layer and prevent the silver material in the first metallic silver layer from oxidizing. reaction.
  • the first metal silver layer can improve the reflection effect of the first electrode 310, thereby improving the reflection effect of the first electrode 310 and improving the microcavity effect.
  • the material of the first transparent electrode 410 includes indium tin oxide.
  • the first transparent electrode 410 is an indium tin oxide layer, so that the first transparent electrode 410 has good light transmittance.
  • the display panel 100 may also include an encapsulation layer, a polarizer and a cover plate located above the encapsulation layer, or a cover plate may be provided directly above the encapsulation layer without providing a polarizer, or at least in the first display area AA1
  • a cover plate is provided directly above the encapsulation layer without the need for a polarizer to prevent the polarizer from affecting the light collection amount of the photosensitive element provided below the first display area AA1.
  • a polarizer can also be provided above the encapsulation layer of the first display area AA1.
  • An embodiment of the present application also provides a display device, which may include the display panel 100 of any of the above embodiments.
  • a display device which may include the display panel 100 of any of the above embodiments.
  • the following description will take a display device of an embodiment as an example.
  • the display device includes the display panel 100 of the above embodiment.
  • FIG. 7 shows a schematic top view of a display device according to an embodiment of the present application
  • FIG. 8 shows a cross-sectional view along the D-D direction in FIG. 7
  • the display panel 100 may be the display panel 100 of one of the above embodiments.
  • the display panel 100 has a first display area AA1 and a second display area AA2.
  • the light transmittance of the first display area AA1 is greater than that of the second display area AA1. 2.
  • the display panel 100 includes an opposing first surface S1 and a second surface S2, where the first surface S1 is a display surface.
  • the display device also includes a photosensitive component 200, which is located on the second surface S2 side of the display panel 100.
  • the photosensitive component 200 is positioned corresponding to the first display area AA1.
  • the photosensitive component 200 may be an image collection device, used to collect external image information.
  • the photosensitive component 200 is a complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor, CMOS) image acquisition device.
  • the photosensitive component 200 can also be a charge-coupled device (CCD). Image acquisition devices and other forms of image acquisition devices. It can be understood that the photosensitive component 200 is not limited to an image collection device.
  • the photosensitive component 200 can also be an infrared sensor, a proximity sensor, an infrared lens, a flood light sensing element, an ambient light sensor, and a dot matrix projection. and other light sensors.
  • the display device can also integrate other components on the second surface S2 of the display panel 100, such as earpieces, speakers, etc.
  • the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA2, so that the display panel 100 can integrate the photosensitive component 200 on the back of the first display area AA1 to achieve, for example, images
  • the photosensitive component 200 of the collection device is integrated under the screen, and the first display area AA1 can display images at the same time, thereby increasing the display area of the display panel 100 and realizing a full-screen design of the display device.
  • the first transparent lead 420 connects the first transparent electrode 410 and the first driving circuit 110.
  • the first transparent electrode 410 and the first electrode layer 30 are stacked, so the first electrode 310 can pass through the first
  • the transparent electrode 410 and the first lead are electrically connected to the first driving circuit 110 so that the first driving circuit 110 can drive the first electrode 310 .
  • the pixel definition layer 50 includes a first pixel opening K1 formed by an isolation portion 510.
  • the first pixel opening K1 is used to set a light-emitting unit.
  • the first driving circuit 110 can cause the first light-emitting unit 520 to emit light by driving the first electrode 310.
  • the first transparent electrode 410 can increase the light transmittance of the display panel 100 so that at least part of the display panel 100 can be light-transmissive and displayable, thereby facilitating the under-screen integration of photosensitive components.
  • the first electrode 310 can ensure the microcavity effect and improve the display effect of the display panel 100 .
  • the orthographic projection area of the first electrode 310 on the array substrate 10 is smaller than the orthographic projection area of its corresponding first pixel opening K1 on the array substrate 10 . That is, the area of the first electrode 310 is smaller, which can ensure the light transmittance of the display panel 100 .
  • Figure 9 is a schematic flow chart of a method for manufacturing a display panel 100 provided by an embodiment of the present application.
  • the display panel 100 can be the display panel 100 provided by any of the above-mentioned first aspect embodiments.
  • the preparation method of the display panel 100 includes:
  • Step S01 Prepare a first electrode layer 30 on the array substrate 10.
  • the first electrode layer 30 includes first electrodes 310 distributed in an array.
  • the array substrate 10 includes a first driving circuit 110.
  • step S01 when a planarization layer 20 is provided between the array substrate 10 and the first electrode layer 30 , in step S01 , the planarization layer 20 is first prepared on the array substrate 10 , and then a third layer is prepared on the planarization layer 20 .
  • An electrode layer 30 is first prepared on the array substrate 10 , and then a third layer is prepared on the planarization layer 20 .
  • An electrode layer 30 is first prepared on the array substrate 10 .
  • Step S02 Prepare a transparent conductive layer 40 on the array substrate 10.
  • the transparent conductive layer 40 includes a first transparent electrode 410 stacked with the first electrode 310, and a first transparent electrode 410 connected to the corresponding first driving circuit 110.
  • Step S03 Continue to prepare the pixel definition layer 50 on the array substrate 10.
  • the pixel definition layer 50 includes an isolation portion 510 and a first pixel opening K1 enclosed by the isolation portion 510.
  • the first electrode 310 is located on the first pixel.
  • the front projection area of the first electrode 310 on the array substrate 10 is smaller than the front projection area of the corresponding first pixel opening K1 on the array substrate 10 .
  • Step S04 Prepare the first light-emitting unit 520 in the first pixel opening K1.
  • the display panel 100 is prepared according to the method provided by the embodiment of the present application.
  • the first transparent lead 420 connects the first transparent electrode 410 and the first driving circuit 110.
  • the first transparent electrode 410 and the first electrode layer 30 are stacked. Therefore, the first The electrode 310 can be electrically connected to the first driving circuit 110 through the first transparent electrode 410 and the first lead, so that the first driving circuit 110 can drive the first electrode 310 .
  • the pixel definition layer 50 includes a first pixel opening K1 formed by an isolation portion 510.
  • the first pixel opening K1 is used to set a light-emitting unit.
  • the first driving circuit 110 can cause the first light-emitting unit 520 to emit light by driving the first electrode 310.
  • the first transparent electrode 410 can increase the light transmittance of the display panel 100 so that at least part of the display panel 100 can be light-transmissive and displayable, thereby facilitating the under-screen integration of photosensitive components.
  • the first electrode 310 can ensure the microcavity effect and improve the display effect of the display panel 100 .
  • the orthographic projection area of the first electrode 310 on the array substrate 10 is smaller than the orthographic projection area of its corresponding first pixel opening K1 on the array substrate 10 . That is, the area of the first electrode 310 is smaller, which can ensure the light transmittance of the display panel 100 .
  • the display panel 100 includes a first display area AA1 and a second display area AA2, and the first sub-pixel 60 is located in the first display area AA1, an interconnection structure may be formed in the first display area AA1. It is connected between the first electrodes 310 of the plurality of first sub-pixels 60 and the same first driving circuit 110 to reduce the wiring area and improve the light transmittance of the first display area AA1.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Manufacturing & Machinery (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

Sont divulgués dans la présente demande un écran d'affichage et un dispositif d'affichage. L'écran d'affichage comprend : un substrat de réseau, comprenant des premiers circuits d'attaque ; une première couche d'électrode, située sur un côté du substrat de réseau, la première couche d'électrode comprenant des premières électrodes réparties dans un réseau ; une couche conductrice transparente, comprenant des premières électrodes transparentes empilées avec les premières électrodes et des premiers fils transparents utilisés pour connecter les premières électrodes transparentes aux premiers circuits d'attaque correspondants ; et une couche de définition de pixels, comprenant une partie d'isolation et des premières ouvertures de pixel définies par la partie d'isolation, les premières électrodes étant situées dans les premières ouvertures de pixel, et au moins une partie du bord de la première électrode étant espacée de la partie d'isolation. La présente demande améliore la transmittance de lumière d'un écran d'affichage, et facilite l'intégration sous-écran d'un ensemble photosensible.
PCT/CN2022/122431 2022-05-30 2022-09-29 Écran d'affichage, dispositif d'affichage et procédé de fabrication d'écran d'affichage WO2023231256A1 (fr)

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CN202210603326.8A CN115000090A (zh) 2022-05-30 2022-05-30 显示面板、显示装置及显示面板的制备方法

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CN115000090A (zh) * 2022-05-30 2022-09-02 昆山国显光电有限公司 显示面板、显示装置及显示面板的制备方法

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Publication number Priority date Publication date Assignee Title
CN110190099A (zh) * 2019-05-28 2019-08-30 武汉华星光电半导体显示技术有限公司 显示面板及显示装置
CN210200763U (zh) * 2019-07-31 2020-03-27 昆山国显光电有限公司 透光显示面板、显示面板及显示装置
CN111312755A (zh) * 2019-11-29 2020-06-19 昆山国显光电有限公司 显示面板及显示装置
US10923543B1 (en) * 2019-11-22 2021-02-16 Boe Technology Group Co., Ltd. Display panel and method of forming the same, display device
CN115000090A (zh) * 2022-05-30 2022-09-02 昆山国显光电有限公司 显示面板、显示装置及显示面板的制备方法

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CN110190099A (zh) * 2019-05-28 2019-08-30 武汉华星光电半导体显示技术有限公司 显示面板及显示装置
CN210200763U (zh) * 2019-07-31 2020-03-27 昆山国显光电有限公司 透光显示面板、显示面板及显示装置
US10923543B1 (en) * 2019-11-22 2021-02-16 Boe Technology Group Co., Ltd. Display panel and method of forming the same, display device
CN111312755A (zh) * 2019-11-29 2020-06-19 昆山国显光电有限公司 显示面板及显示装置
CN115000090A (zh) * 2022-05-30 2022-09-02 昆山国显光电有限公司 显示面板、显示装置及显示面板的制备方法

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