Display panel, display device and display panel manufacturing method

Abstract

The invention discloses a display panel, a display device and a display panel manufacturing method, the display panel comprises a display backboard, a penetration rate adjusting layer and a light intensity sensing layer, the penetration rate adjusting layer is arranged on the light emitting side of the display backboard, and the light intensity sensing layer is arranged on the backlight side of the display backboard; the light intensity sensing layer is used for sensing the light intensity of an external environment to generate an electric signal and inputting the electric signal to an external control unit, and the control unit controls the transmittance of the transmittance adjusting layer through the electric signal. According to the display panel, when external brightness changes are sensed, adjustment of visual display brightness in different environments is achieved, long-term high-brightness display is avoided, and more effective energy saving is achieved.

Description

Technical Field

[0001] The present application relates to the field of display, and in particular to a display panel, a display device and a method for manufacturing a display panel. Background Art

[0002] At this stage, due to the limitations of packaging materials, the transmittance of MLED (MLED includes Micro LED and Mini LED) direct display products is determined at the time of shipment. When the external environment is dark, the display brightness may be too bright. When the external environment is too bright, it may lead to insufficient display brightness. It is impossible to automatically increase the brightness by increasing the LED lamp current, nor can it increase the display optical brightness by increasing the transmittance. Summary of the invention

[0003] In view of the deficiencies of the above-mentioned related technologies, the purpose of the present application is to provide a display panel, a display device and a display panel manufacturing method, which can adjust the visible display brightness in different environments when sensing changes in external brightness, avoid long-term high-brightness display, and save energy more effectively.

[0004] The present application provides a display panel, comprising a display backplane, a transmittance adjustment layer and a light intensity sensing layer, wherein the transmittance adjustment layer is arranged on the light emitting side of the display backplane, and the light intensity sensing layer is arranged on the backlight side of the display backplane; The light intensity sensing layer is used to sense the light intensity of the external environment to generate an electrical signal and input it to an external control unit. The control unit controls the transmittance of the transmittance adjustment layer through the electrical signal.

[0005] The display panel senses the ambient light intensity through the light intensity sensing layer to generate an electrical signal and input it to an external control unit. The control unit controls the transmittance of the transmittance adjustment layer so that the display panel reaches the preset visual display brightness of the environment, thereby realizing the adjustment of the visual display brightness in different environments, avoiding long-term high-brightness display, and saving energy more effectively.

[0006] Optionally, the control unit is further used to control the driving current of the display backplane through the electrical signal.

[0007] The display panel senses the ambient light intensity through a light intensity sensing layer to generate an electrical signal and input it into an external control unit. The control unit can also control the driving current of the display backplane to enable the display panel to reach the preset visual display brightness of the environment, thereby realizing the adjustment of the visual display brightness in different environments, avoiding long-term high-brightness display, and saving energy more effectively.

[0008] Optionally, the transmittance adjustment layer includes a first transparent conductive layer, an ion storage layer, an ion conductive layer, a transparent conversion layer, a second transparent conductive layer and a transparent protective layer; the first transparent conductive layer, the ion storage layer, the ion conductive layer, the transparent conversion layer, the second transparent conductive layer and the transparent protective layer are sequentially stacked on the light-emitting side of the display backplane; The first transparent conductive layer and the second transparent conductive layer form an electric field after being energized, so that the transparent conversion layer changes the transmittance of the transmittance adjustment layer under the action of the electric field.

[0009] An electric field is formed between the first transparent conductive layer and the second transparent conductive layer to provide uniform electron supply to the transparent conversion layer and the ion storage layer; the transparent conversion layer undergoes an oxidation-reduction reaction under the action of voltage to achieve conversion between black and transparent and change the transmittance; the ion conductive layer allows display light to pass through while providing ions and blocking electrons; the ion storage layer provides or accepts ions that migrate during the transparent conversion process to maintain the internal electrical balance.

[0010] Optionally, the transparent conversion layer is made of one or more of tungsten trioxide, titanium dioxide, molybdenum trioxide, tantalum pentoxide and niobium pentoxide.

[0011] Optionally, the ion conductive layer comprises a solid electrolyte or a solid polymer electrolyte.

[0012] Optionally, the ion storage layer is made of one or more of iridium dioxide, nickel oxide and vanadium pentoxide.

[0013] Optionally, the light intensity sensing layer includes a photosensitive semiconductor material.

[0014] When the light intensity increases or decreases, the resistance value of the light intensity sensing layer will change, generating an electrical signal to be output to the control unit. The control unit controls the display backplane driving current and / or adjusts the transmittance of the transmittance adjustment layer to adjust the visual display brightness.

[0015] Optionally, the photosensitive semiconductor material includes one or more of silicon, germanium, indium, gallium, antimony, selenium, germanium-doped semiconductor material and silicon-doped semiconductor material.

[0016] The present application also provides a display panel manufacturing method, which is used for the display panel, and the steps include: Provide display backplane; Disposing a transmittance adjustment layer on the light-emitting side of the display backplane; A light intensity sensing layer is arranged on the backlight side of the display back panel.

[0017] Optionally, the transmittance adjustment layer includes a first transparent conductive layer, an ion storage layer, an ion conductive layer, a transparent conversion layer, a second transparent conductive layer and a transparent protective layer; The method of providing a transmittance adjustment layer on the light-emitting side of the display backplane comprises performing the following steps: The first transparent conductive layer, the ion storage layer, the ion conductive layer, the transparent conversion layer, the second transparent conductive layer and the transparent protective layer are sequentially stacked on the light emitting side of the display backplane.

[0018] The display panel manufactured by this manufacturing method senses the external ambient light intensity through the light intensity sensing layer to generate an electrical signal and input it to an external control unit. The transmittance of the transmittance adjustment layer and / or the driving current of the display backplane can be controlled by the control unit to achieve the preset visual display brightness of the environment, thereby realizing the adjustment of the visual display brightness in different environments, avoiding long-term high-brightness display, and more effectively saving energy.

[0019] Optionally, providing a display backplane includes performing the following steps: Providing a driving substrate; Arranging a plurality of light-emitting chips on the driving substrate; Filling a sealing layer around the light emitting chip, wherein the sealing layer covers the light emitting chip; The light-emitting side of the display backplane is the side of the sealing layer away from the driving substrate; and the backlight side of the display backplane is the side of the driving substrate away from the light-emitting chip.

[0020] The present application also provides a display device, comprising a control unit and the display panel, wherein the display backplane, the light intensity sensing layer and the transmittance adjustment layer are respectively connected to the control unit; The light intensity sensing layer senses the light intensity of the external environment to generate an electrical signal which is input into the control unit, and the control unit controls the transmittance of the transmittance adjustment layer through the electrical signal.

[0021] The display device senses the ambient light intensity through the light intensity sensing layer to generate an electrical signal and input it into the control unit. The transmittance of the transmittance adjustment layer can be controlled by the control unit to achieve the preset visual display brightness of the environment, thereby realizing the adjustment of the visual display brightness in different environments, avoiding long-term high-brightness display, and more effectively saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the driving substrate of an embodiment of the present application; Figure 2 This is a schematic diagram of the structure in which a light-emitting chip is arranged on a driving substrate in an embodiment of the present application; Figure 3 A schematic diagram showing the structure of a backplane in an embodiment of the present application; Figure 4This is a schematic diagram of the structure of a light intensity sensing layer provided on a display back panel in an embodiment of the present application; Figure 5 It is a schematic diagram of the structure of the display panel according to an embodiment of the present application.

[0023] Figure numerals: 1-display backplane; 11-driving substrate; 111-substrate; 112-first gate; 113-first gate insulating layer; 114-first active layer; 115-first source metal layer; 116-first drain metal layer; 117-contact pin; 118-first flat layer; 119-first conductive line; 120-second conductive line; 121-electrode pad; 122-second flat layer; 12-sealing layer; 13-light-emitting chip; 2-transmittance adjustment layer; 21-first transparent conductive layer; 22-ion storage layer; 23-ion conductive layer; 24-transparent conversion layer; 25-second transparent conductive layer; 26-transparent protective layer; 3-light intensity sensing layer. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] In the description of the present application, the terms "first", "second", etc. are used to distinguish different objects rather than to describe a specific order. In addition, the terms "upper", "lower", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present application.

[0027] It should be noted that the illustrations provided in the embodiments of the present application are only used to illustrate the basic concept of the present application in a schematic manner. The illustrations only show the components related to the present application rather than being drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0028] The specific implementation of the present application is further described below in conjunction with the accompanying drawings.

[0029] See also Figure 5 As shown, a display panel comprises a display backplane 1, a transmittance adjustment layer 2 and a light intensity sensing layer 3, wherein the transmittance adjustment layer 2 is arranged on the light emitting side of the display backplane 1, and the light intensity sensing layer 3 is arranged on the backlight side of the display backplane 1; The light intensity sensing layer 3 is used to sense the light intensity of the external environment to generate an electrical signal and input it into an external control unit. The control unit controls the transmittance of the transmittance adjustment layer 2 through the electrical signal. When the light intensity sensing layer 3 senses changes in the external brightness, the transmittance of the transmittance adjustment layer 2 can be adjusted to achieve the preset visual display brightness under different environments. The transmittance adjustment layer 2 can also realize secondary packaging of the display light board to prevent moisture from entering.

[0030] In this embodiment, the display backplane 1 may be a Micro LED display backplane, a Mini LED display backplane, an OLED display screen, an LCD display screen, or other display screens, which are not limited herein.

[0031] In this embodiment, the control unit is also used to control the driving current of the display backplane 1 through the electrical signal. When the light intensity sensing layer 3 senses changes in external brightness, the transmittance of the transmittance adjustment layer 2 and the driving current of the display backplane 1 can be adjusted to achieve the preset visual display brightness under different environments.

[0032] The light intensity of the external environment is sensed by the light intensity sensing layer 3. When the external environment is dark, the driving current of the display backplane 1 and / or the transmittance adjustment layer 2 can be adjusted to reduce the display brightness; when the light intensity sensing layer 3 senses sufficient light (outdoors or when there is sufficient light, the driving current of the display backplane 1 is adjusted to increase the luminous brightness and the display brightness; the transmittance adjustment layer 2 can also be adjusted to increase the transmittance of the display panel and the display brightness, so that the visible display brightness can be guaranteed even in a high-intensity light environment; because the display brightness can be adjusted at any time according to changes in the external environment, it can effectively save energy compared to long-term high-brightness display. The transmittance is adjustable, and black encapsulation can be achieved by adjusting the transmittance of the transmittance adjustment layer 2; the display brightness can be adjusted at any time according to changes in the external environment, which can effectively save energy compared to long-term high-brightness display.

[0033] In this embodiment, the display backplane 1 includes a driving substrate 11, a sealing layer 12 and a plurality of light-emitting chips 13, wherein the plurality of light-emitting chips 13 are arranged on the driving substrate 11, the sealing layer 12 is filled around the light-emitting chips 13 and covers the light-emitting chips 13, and the transmittance adjustment layer 2 is arranged on the sealing layer 12; The light-emitting side of the display backplane 1 is the side of the sealing layer 12 away from the driving substrate 11 ; the backlight side of the display backplane 1 is the side of the driving substrate 11 away from the light-emitting chip 13 .

[0034] In this embodiment, the plurality of light emitting chips 13 include a plurality of red light emitting chips, a plurality of green light emitting chips, and a plurality of blue light emitting chips. Full-color display is achieved by arranging red light emitting chips, green light emitting chips, and blue light emitting chips. In some embodiments, the red light emitting chip, the green light emitting chip, and the blue light emitting chip are respectively a red quantum dot light emitting chip, a green quantum dot light emitting chip, and a blue light emitting chip. This is not limited here.

[0035] In this embodiment, the driving substrate 11 can be a circuit board, an array substrate, a glass driving substrate, a flexible driving substrate, a light board, a semiconductor driving substrate or other types of driving substrates, which are not specifically limited in this embodiment; the material of the driving substrate 11 can be glass, transparent plastic, acrylic, quartz, sapphire, semiconductor material, etc., which can be selected according to actual conditions and are not specifically limited in this embodiment.

[0036] In this embodiment, the light emitting chip 13 may be a MiniLED or a MicroLED or a nano-LED or an LED of other sizes, which is not limited here and can be selected according to actual conditions.

[0037] In this embodiment, the transmittance adjustment layer 2 includes a first transparent conductive layer 21, an ion storage layer 22, an ion conductive layer 23, a transparent conversion layer 24, a second transparent conductive layer 25 and a transparent protective layer 26; the first transparent conductive layer 21, the ion storage layer 22, the ion conductive layer 23, the transparent conversion layer 24, the second transparent conductive layer 25 and the transparent protective layer 26 are sequentially stacked on the light-emitting side of the display backplane 1; The first transparent conductive layer 21 and the second transparent conductive layer 25 form an electric field after being energized, so that the transparent conversion layer 24 changes the transmittance of the transmittance adjustment layer 2 under the action of the electric field.

[0038] The ion storage layer 22 can also be a transparent conversion material with opposite properties to the transparent conversion layer 24, which can play a superimposed role. If the transparent conversion layer 24 is an anodic oxidation transparent conversion material, the ion storage layer 22 can be a cathode reduction transparent conversion material.

[0039] The transparent conversion layer 24 undergoes an electrochemical redox reaction under the action of an external electric field, gains or loses electrons, changes the color of the material, realizes the conversion between black and transparent, and changes the transmittance, wherein the first transparent conductive layer 21 and the second transparent conductive layer 25 form an electric field to provide a uniform supply of electrons for the transparent conversion layer 24 and the ion storage layer 22; the transparent conversion layer 24 undergoes a redox reaction under the action of a voltage, realizes the conversion between black and transparent, and changes the transmittance; the ion conductive layer 23 allows display light to pass through while providing ions and blocking electrons; the ion storage layer 22 provides or accepts ions that migrate during the transparent conversion process to maintain the internal electrical balance.

[0040] In this embodiment, the first transparent conductive layer 21 and the second transparent conductive layer 25 are made of indium tin oxide (ITO). In some embodiments, the transparent conductive layer may be made of other materials, which is not limited here.

[0041] In this embodiment, the transparent conversion layer 24 is made of one or more of tungsten trioxide (WO3), titanium dioxide TiO2, molybdenum trioxide (MoO3), tantalum pentoxide (Ta2O5) and niobium pentoxide (Nb2O5). In some embodiments, the transparent conversion layer 24 may also be made of other materials used for transparent conversion layers, which are not limited here.

[0042] In this embodiment, the ion conductive layer 23 includes a solid electrolyte or a solid polymer electrolyte. In some embodiments, the ion conductive layer 23 may also include an ion conductive layer made of other materials, which is not limited here. Specifically, the ion conductive layer 23 is mainly made of a solid electrolyte or a solid polymer electrolyte material.

[0043] In this embodiment, the ion storage layer 22 is made of one or more of iridium dioxide (IrO2), nickel oxide (NiO) and vanadium pentoxide (V2O5). In some embodiments, the ion storage layer 22 may also be made of other materials used for ion storage layers, which are not limited here. In this embodiment, when the ambient light intensity is between the first light intensity and the second light intensity, the driving current of the display backplane 1 remains unchanged, the transmittance of the transmittance adjustment layer 2 is increased, and the display brightness is improved to achieve the first preset visual display brightness; wherein the initial transmittance of the transmittance adjustment layer 2 is 0; When the ambient light intensity is greater than the second light intensity, the driving current of the display backplane 1 remains unchanged, the transmittance of the transmittance adjustment layer 2 is increased, and the display brightness is improved to reach the second preset visual display brightness; if the transmittance of the transmittance adjustment layer 2 is adjusted to 100% and still cannot meet the second preset visual display brightness, the driving current of the display backplane 1 is increased to further improve the display brightness to reach the second preset visual display brightness; When the ambient light intensity is less than the first light intensity, the transmittance of the transmittance adjustment layer 2 is adjusted to 100%, the driving current of the display backplane 1 is reduced, and the display brightness is reduced to achieve a third preset visual display brightness. The embodiment may also be: during display, the transmittance of the transmittance adjustment layer 2 and the driving current of the display backplane 1 are synchronously adjusted to meet the display brightness requirements of the environment. Among them, the driving current of the display backplane 1 remains unchanged, that is, it emits light normally.

[0044] In this embodiment, the first light intensity ranges from 80 lux to 300 lux; the second light intensity ranges from 300 lux to 600 lux. Optionally, the first light intensity is 100 lux and the second light intensity is 500 lux. In some embodiments, the first light intensity is 80 lux or 120 lux or 150 lux or 250 lux or 300 lux; the second light intensity is 300 lux or 350 lux or 400 lux or 450 lux or 500 lux or 550 lux or 600 lux, but is not limited thereto.

[0045] In this embodiment, the light intensity sensing layer 3 includes a photosensitive semiconductor material. The photosensitive semiconductor material will enhance resistance or conductivity under light, generate charge, and thus convert the light signal into an electrical signal. When the light intensity increases or decreases, the resistance value of the light intensity sensing layer 3 will change, and an electrical signal will be generated and output to the control unit, and the control unit controls the driving current of the display backplane 1 and / or adjusts the transmittance of the transmittance adjustment layer 2.

[0046] In this embodiment, the photosensitive semiconductor material includes one or more of silicon, germanium, indium, gallium, antimony, selenium, germanium-doped semiconductor material and silicon-doped semiconductor material.

[0047] See also Figures 1 to 5 As shown, this embodiment also discloses a display panel manufacturing method, which is used to manufacture the above-mentioned display panel, and the steps include: Providing a display back panel 1; A transmittance adjustment layer 2 is provided on the light-emitting side of the display backplane 1; A light intensity sensing layer 3 is provided on the backlight side of the display backplane 1. The order of providing the transmittance adjustment layer 2 and the light intensity sensing layer 3 is not limited, and the transmittance adjustment layer 2 and the light intensity sensing layer 3, or the light intensity sensing layer 3 and the transmittance adjustment layer 2 can be provided on the display backplane 1 in sequence. The transmittance adjustment layer 2 and the light intensity sensing layer 3 can also be provided on the display backplane 1 at the same time, which is not limited here.

[0048] In this embodiment, the transmittance adjustment layer 2 includes a first transparent conductive layer 21, an ion storage layer 22, an ion conductive layer 23, a transparent conversion layer 24, a second transparent conductive layer 25 and a transparent protective layer 26; The method of providing a transmittance adjustment layer 2 on the light-emitting side of the display backplane 1 comprises performing the following steps: The first transparent conductive layer 21 , the ion storage layer 22 , the ion conductive layer 23 , the transparent conversion layer 24 , the second transparent conductive layer 25 and the transparent protective layer 26 are sequentially stacked on the light-emitting side of the display back panel 1 .

[0049] In one embodiment, providing the display back panel 1 comprises performing the following steps: Providing a driving substrate 11; A plurality of light emitting chips 13 are arranged on the driving substrate 11; Filling a sealing layer 12 around the light emitting chip 13, and the sealing layer 12 covers the light emitting chip 13; The light-emitting side of the display backplane 1 is the side of the sealing layer 12 away from the driving substrate 11 ; the backlight side of the display backplane 1 is the side of the driving substrate 11 away from the light-emitting chip 13 .

[0050] In this embodiment, providing a driving substrate 11 includes performing the following steps: A substrate 111 is provided; the substrate 111 is a glass substrate or a flexible substrate or other substrate that can realize functions; A first gate 112 is formed on the substrate 111; the first gate 112 may be a single layer of metal or alloy; A first gate insulating layer 113 is disposed on the first gate 112; the first gate insulating layer 113 is used to insulate the first gate 112, and the first gate insulating layer 113 may be silicon oxide, silicon nitride, etc. A first active layer 114 is disposed on the first gate insulating layer 113; the first active layer 114 is made of amorphous silicon or polycrystalline silicon; A first source metal layer 115 and a first drain metal layer 116 are respectively disposed on both sides of the first active layer 114; the metal layers constituting the first source metal layer 115 and the first drain metal layer 116 may be a single layer or an alloy metal, etc. Contact pins 117 are disposed on the first gate insulating layer 113 at intervals; the contact pins 117 may be a single layer or alloy metal, etc.; A first planar layer 118 is disposed on the first source metal layer 115 and the first drain metal layer 116; the first planar layer 118 insulates the first source metal layer 115, the first drain metal layer 116 and the contact pin 117; An opening is formed on the first flat layer 118 for arranging a first conductive line 119 and a second conductive line 120 , wherein the first conductive line 119 is connected to the first drain metal layer 116 , and the second conductive line 120 is connected to the contact pin 117 ; An electrode pad 121 is provided on the first flat layer 118 and connected to the first conductive line 119 and the second conductive line 120. The electrode pad 121 is used for welding with the LED chip electrode. A second flat layer 122 is disposed outside the electrode pad 121. The second flat layer 122 is a black organic material protective layer, which can insulate and protect the electrode pad 121 and realize blackening of the light board, thereby achieving a higher contrast display.

[0051] This embodiment also discloses a display device, including a control unit and a display panel as described above, wherein the display back panel 1, the light intensity sensing layer 3 and the transmittance adjustment layer 2 are respectively connected to the control unit; the light intensity sensing layer 3 senses the light intensity of the external environment to generate an electrical signal to input into the control unit, and the control unit controls the transmittance of the transmittance adjustment layer 2 through the electrical signal. When the light intensity sensing layer 3 senses changes in the external brightness, the transmittance of the transmittance adjustment layer 2 can be adjusted to achieve the preset visual display brightness of the display device in different environments.

[0052] In this embodiment, the control unit can also control the driving current of the display backplane 1 through the electrical signal. When the light intensity sensing layer 3 senses changes in external brightness, the transmittance of the transmittance adjustment layer 2 and the driving current of the display backplane 1 can be adjusted to achieve the preset visual display brightness under different environments.

[0053] In this embodiment, the display device may be a television, VR / AR, a smart wearable device, a mobile phone, a car display, etc.

[0054] It should be understood that the application of the present application is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A display panel, characterized in that: It comprises a display backplane, a transmittance adjustment layer and a light intensity sensing layer, wherein the transmittance adjustment layer is arranged on the light emitting side of the display backplane, and the light intensity sensing layer is arranged on the backlight side of the display backplane; The light intensity sensing layer is used to sense the light intensity of the external environment to generate an electrical signal and input it to an external control unit. The control unit controls the transmittance of the transmittance adjustment layer through the electrical signal.

2. The display panel according to claim 1, wherein: The control unit is also used to control the driving current of the display backplane through the electrical signal.

3. The display panel according to claim 1 or 2, characterized in that: The transmittance adjustment layer comprises a first transparent conductive layer, an ion storage layer, an ion conductive layer, a transparent conversion layer, a second transparent conductive layer and a transparent protective layer; the first transparent conductive layer, the ion storage layer, the ion conductive layer, the transparent conversion layer, the second transparent conductive layer and the transparent protective layer are sequentially stacked on the light-emitting side of the display backplane; The first transparent conductive layer and the second transparent conductive layer form an electric field after being energized, so that the transparent conversion layer changes the transmittance of the transmittance adjustment layer under the action of the electric field.

4. The display panel according to claim 3, wherein: The transparent conversion layer is made of one or more of tungsten trioxide, titanium dioxide, molybdenum trioxide, tantalum pentoxide and niobium pentoxide.

5. The display panel according to claim 4, wherein: The ion-conducting layer includes a solid electrolyte or a solid polymer electrolyte.

6. The display panel according to claim 4 or 5, characterized in that: The ion storage layer is made of one or more of iridium dioxide, nickel oxide and vanadium pentoxide.

7. The display panel according to claim 1, 2, 4 or 5, characterized in that: The light intensity sensing layer includes a photosensitive semiconductor material.

8. The display panel according to claim 7, wherein: The photosensitive semiconductor material includes one or more of silicon, germanium, indium, gallium, antimony, selenium, germanium-doped semiconductor material and silicon-doped semiconductor material.

9. A method for manufacturing a display panel, characterized in that: For manufacturing a display panel as claimed in any one of claims 1 to 8, the steps include: Provide display backplane; Disposing a transmittance adjustment layer on the light-emitting side of the display backplane; A light intensity sensing layer is arranged on the backlight side of the display backplane.

10. The method for manufacturing a display panel according to claim 9, wherein: The transmittance adjustment layer includes a first transparent conductive layer, an ion storage layer, an ion conductive layer, a transparent conversion layer, a second transparent conductive layer and a transparent protective layer; The transmittance adjustment layer is arranged on the light exiting side of the display back plate; This involves performing the following steps: The first transparent conductive layer, the ion storage layer, the ion conductive layer, the transparent conversion layer, the second transparent conductive layer and the transparent protective layer are sequentially stacked on the light emitting side of the display backplane.

11. The method for manufacturing a display panel according to claim 9, wherein: Providing a display backplane includes performing the following steps: Providing a driving substrate; Arranging a plurality of light-emitting chips on the driving substrate; Filling a sealing layer around the light emitting chip, wherein the sealing layer covers the light emitting chip; The light-emitting side of the display backplane is the side of the sealing layer away from the driving substrate; and the backlight side of the display backplane is the side of the driving substrate away from the light-emitting chip.

12. A display device, characterized in that: It comprises a control unit and the display panel according to any one of claims 1 to 8, wherein the display backplane, the light intensity sensing layer and the transmittance adjustment layer are respectively connected to the control unit; The light intensity sensing layer senses the light intensity of the external environment to generate an electrical signal which is input into the control unit, and the control unit controls the transmittance of the transmittance adjustment layer through the electrical signal.

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