CN212515220U - Display panel with eye tracking function - Google Patents

Abstract

The embodiment of the utility model discloses carry on display panel who follows spot function. The display panel includes: driving the back plate; the light-emitting units and the image sensing units are positioned on the driving back plate and are arranged in an array; the light emitting unit emits light according to the received signal, the signal received by the light emitting unit is associated with the signal output by the image sensing unit, and the light emitting unit is configured to emit light according to the target identified by the image sensing unit. Will the embodiment of the utility model provides a when display panel is applied to AR/VR display device, can realize tracking people's eye motion and adjust the display screen, alleviated the vertigo that current display device arouses, strengthened the sense of immersing when the user uses display device, optimized display device's display effect, promoted display device's biological identification performance to display device's human-computer interaction performance has been strengthened.

Description

Display panel with eye tracking function

Technical Field

The embodiment of the utility model provides a relate to and show technical field, especially relate to a carry on display panel who follows spot function.

Background

Virtual Reality (VR) is a technique in which a computer simulates a Virtual environment to give the human an immersive environment. Augmented Reality (AR), a technique that skillfully fuses virtual information with the real world.

At present, display devices based on AR/VR have the problems of easily causing user dizziness, insufficient immersion feeling and poor man-machine interaction performance.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a carry on display panel who follows spot function and preparation method thereof to optimize display panel's display effect, and reinforcing human-computer interaction performance.

The embodiment of the utility model provides a carry on display panel who follows spot function, include:

driving the back plate;

the light-emitting units and the image sensing units are positioned on the driving back plate and are arranged in an array;

the light emitting unit emits light according to a received signal, the signal received by the light emitting unit is associated with a signal output by the image sensing unit, and the light emitting unit is configured to emit light according to a target identified by the image sensing unit.

Optionally, the light emitting unit includes a first light emitting unit, a second light emitting unit, and a third light emitting unit, and the first light emitting unit, the second light emitting unit, the third light emitting unit, and the image sensing unit are arranged in a grid shape.

Optionally, the driving backplane comprises a first electrode layer and a second electrode layer;

the display panel includes:

the organic light-emitting layer is positioned on the driving back plate and covers the first electrode layer;

the third electrode layer is positioned on one side of the organic light-emitting layer away from the driving back plate;

the packaging layer is positioned on one side, far away from the driving back plate, of the third electrode layer;

the first protective layer is arranged around the organic light-emitting layer, the third electrode layer and the side wall of the packaging layer;

the quantum dot layer is positioned on one side, far away from the driving backboard, of the packaging layer;

the sensing layer and the fourth electrode layer are positioned on one side, away from the driving back plate, of the second electrode layer, and the sensing layer is positioned between the second electrode layer and the fourth electrode layer;

wherein the first electrode layer, the organic light emitting layer, the quantum dot layer, and the third electrode constitute the light emitting unit;

the second electrode layer, the sensing layer, and the fourth electrode layer constitute the image sensing unit.

Optionally, a material of the first protection layer includes silicon nitride.

Optionally, the first electrode layer and the second electrode layer are disposed in the same layer.

Optionally, the quantum dot layer comprises red quantum dots and green quantum dots.

Optionally, the organic light emitting diode further comprises an insulating layer and a common electrode layer;

the insulating layer covers the second electrode layer, the sensing layer and the fourth electrode layer;

the public electrode layer is located on one side, far away from the driving backboard, of the insulating layer, and the public electrode layer is connected with the third electrode layer and the fourth electrode layer through the through hole.

Optionally, the display device further comprises a pixel defining layer, the pixel defining layer comprises a first groove, the pixel defining layer is positioned at one side of the common electrode layer far away from the driving backboard, the quantum dot layer is positioned at the first groove,

a second groove is further formed between the adjacent first grooves of the pixel defining layer, and the display panel further comprises a second protective layer, a third protective layer and a lens;

the second protective layer and the third protective layer are sequentially arranged on one side, away from the driving backboard, of the pixel defining layer, and the third protective layer at least covers the second groove;

the lens is positioned on one side of the second protective layer, which is far away from the pixel defining layer, and is arranged corresponding to the area where the image sensing unit is positioned.

Optionally, the protective cover further comprises a first adhesive layer and a cover plate, wherein the cover plate is connected with the second protective layer through the first adhesive layer.

The technical scheme of the utility model, through setting up luminescence unit and image sensing unit array arrangement in display panel for the image sensing unit can directly realize target identification in the demonstration side, and a plurality of image sensing units among the display panel can promote the accuracy of target identification result, so that display panel comes the accurate control luminescence unit to give out light according to the recognition result of image sensing unit and shows. Will the embodiment of the utility model provides a when display panel is applied to AR/VR display device, can realize tracking people's eye motion and adjust the display screen, alleviated the vertigo that current display device arouses, strengthened the sense of immersing when the user uses display device, optimized display device's display effect, promoted display device's biological identification performance to display device's human-computer interaction performance has been strengthened.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of a display panel according to an embodiment of the present invention;

fig. 2 is a schematic top view of a display panel according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of another display panel according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional structure diagram of another display panel according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

As described in the background art, the existing display device has problems that it easily causes user dizziness, insufficient immersion feeling, and poor man-machine interaction performance. To solve the technical problem, an embodiment of the present invention provides a display panel with a function of eye tracking. Fig. 1 is a schematic cross-sectional structure diagram of a display panel according to an embodiment of the present invention; fig. 2 is a schematic top view of a display panel according to an embodiment of the present invention. With reference to fig. 1 and 2, the display panel includes a driving back plate 10, a light emitting unit 20, and an image sensing unit 30; the light emitting units 20 and the image sensing units 30 are located on the driving back plate 10 and arranged in an array; the light emitting unit 20 emits light according to the received signal, the signal received by the light emitting unit 20 is associated with the signal output by the image sensing unit 30, and the light emitting unit 20 is configured to emit light according to the target recognized by the image sensing unit 30.

Referring to fig. 1 and fig. 2, the display panel provided by the embodiment of the present invention may be an Organic Light-Emitting Diode (OLED) display panel or an Organic Light-Emitting Diode Micro display panel (Micro-OLED). The driving backplane 10 may be a silicon-based backplane, and may provide buffering, protection, or support for the display panel. The driving backplane 10 is provided with a driving circuit, such as a pixel driving circuit or a CMOS driving circuit, and the light emitting unit 20 and the image sensing unit 30 can be connected to signal traces in the driving circuit through the via 110, so that the driving circuit can drive the light emitting unit 20 to perform light emitting display and drive the image sensing unit 30 to perform image recognition.

Referring to fig. 1 and 2, the light emitting units 20 and the image sensing units 30 are integrated on the display panel and are alternately arranged in an array in the display region. In this embodiment, the operation principle of the display panel will be described by taking an example in which the display panel is applied to an AR/VR display device based on an eye tracking technology, for example, a head-mounted display device. In the working process of the display panel, after external environment light, such as sunlight or lamplight, irradiates human eyes, the image sensing units 30 arranged at various positions in the display panel can sense the light at various positions of the human eyes so as to determine pupil position information and eye movement data of the human eyes in real time. The image sensing unit 30 may output a signal based on the pupil position information and the eye movement data so that the driving backplate 10 can output a control signal to the light emitting unit 20 according to the signal output from the image sensing unit 30, and the light emitting unit 20 performs light emitting display according to the received control signal, so that the picture displayed by the display device can be adjusted in real time according to the pupil position and the eye movement of the human eye.

In addition, human-computer interaction can be performed according to the pupil position and the eye movement data of the human eye, for example, when the sensing layer 310 detects that the human eye moves up and down, confirmation (YES) is indicated; a Negative (NO) when the sensing layer 310 detects a left-right movement of the human eye; as another example, when the sensing layer 310 detects a low-frequency blinking motion in the human eye, a confirmation is indicated (YES); a Negative (NO) when the sensing layer 310 detects a high frequency blinking motion in the human eye; when the sensing layer 310 detects that the human eyes move up and down, the page turning up and down is indicated; when the sensing layer 310 detects that the human eye moves left and right, it indicates to turn the page left and right or to select the menu at the upper and lower levels, etc. Therefore, the display panel provided by the embodiment of the invention can replace traditional interaction processes such as touch control, mouse or keyboard input and the like according to the pupil position and eye movement data of human eyes, so that the man-machine interaction is more intelligent.

The utility model discloses technical scheme is through setting up light-emitting unit 20 and image sensing unit 30 array arrangement in display panel for image sensing unit 30 can directly realize the target recognition in the demonstration side, and a plurality of image sensing unit 30 among the display panel can promote the accuracy of target recognition result, so that display panel comes accurate control light-emitting unit 20 to give out light according to image sensing unit 30's recognition result and shows. Will the embodiment of the utility model provides a when display panel is applied to AR/VR display device, can realize tracking people's eye motion and adjust the display screen, alleviated the vertigo that current display device arouses, strengthened the sense of immersing when the user uses display device, optimized display device's display effect, promoted display device's biological identification performance to display device's human-computer interaction performance has been strengthened.

With reference to fig. 1 and 2, it may be arranged that the light emitting unit 20 includes a first light emitting unit 21, a second light emitting unit 22, and a third light emitting unit 23, and the first light emitting unit 21, the second light emitting unit 22, the third light emitting unit 23, and the image sensing unit 30 are arranged in a grid shape. Fig. 1 and 2 exemplarily set the first light emitting unit 21 as a red light emitting unit, the second light emitting unit 22 as a green light emitting unit, and the third light emitting unit 23 as a blue light emitting unit.

The image sensing unit 30 does not perform light display, and may be provided in a transparent or translucent structure, and thus may be approximately regarded as a unit displaying white color. The pixel arrangement structure shown in fig. 2 includes a plurality of first repeating pixel units PX10 and second repeating pixel units PX 20. The first repeating pixel unit PX10 includes a first sub-pixel unit PX11 and a second sub-pixel unit PX12, each of which forms a sub-pixel, and the first repeating pixel unit PX10 has eight sub-pixels in total. The first sub-pixel unit PX11 includes four sub-pixels of different colors arranged in two rows each. The second sub-pixel unit PX12 includes four sub-pixels arranged in a row direction as a mirror image of the arrangement of the four sub-pixels of the first sub-pixel unit PX 11. The second repeating pixel unit PX20 includes eight sub-pixels arranged in a mirror image with the arrangement of the eight sub-pixels of the first repeating pixel unit PX10 in the column direction. The plurality of first repeating pixel units PX10 are repeatedly arranged in the row direction, and the plurality of second repeating pixel units PX20 and the first repeating pixel units PX10 are alternately and repeatedly arranged in the column direction, thereby forming a checkered arrangement structure.

Referring to fig. 2, each sub-pixel constitutes one development pixel with adjacent three sub-pixels of different colors, as shown by PX11 or PX 12. In the embodiment, the display pixel is square, the four sub-pixels are respectively located at four corners of the square, and respectively include a red sub-pixel R, a green sub-pixel G, a blue sub-pixel B, and a sensing area S, and the sensing area S formed by the image sensing unit 30 is similar to the white sub-pixel, so that the brightness of the display pixel can be improved. In the same display pixel, the red sub-pixel R is disposed diagonally to the sensing region S, and the blue sub-pixel B is disposed diagonally to the green sub-pixel G. Preferably, the four sub-pixels have the same area, and are arranged so as to control the color displayed by the display pixel.

In addition, as shown in the pixel unit PX30, in the present embodiment, the four red sub-pixel units R are adjacently disposed and arranged in a matrix; the four green sub-pixel units G are adjacently arranged and arranged in a field shape; the four blue sub-pixel units B are adjacently arranged and arranged in a shape of Chinese character 'tian'; the four sensor areas S (image sensor units 30) are arranged adjacent to each other in a matrix. Therefore, the four sub-pixel units with the same color are arranged in a centralized manner, and can be formed in one process in the manufacturing process of the display panel; the four sensing regions S are collectively arranged so that the sensing layers 310 and the fourth electrode layers 320 of the image sensing units 30 in the four sensing regions S can also be formed in one process. Compared with the preparation method that each sub-pixel unit is processed and formed one by one, and the sensing layer 310 and the fourth electrode layer 320 of each image sensing unit 30 are processed and formed one by one, the pixel arrangement structure provided by the embodiment increases the number of sub-pixels in a unit area under the condition of reducing the process precision, meets the pixel density requirement of the micro-display device, and simultaneously can reduce the size of the image sensing unit 30, thereby being beneficial to integrating the image sensing unit 30 in the pixel unit.

Fig. 3 is a schematic cross-sectional structure diagram of another display panel provided in an embodiment of the present invention, which may be a schematic partial cross-sectional structure diagram of the display panel in a manufacturing process. As shown in fig. 3, in the present embodiment, the driving backplane 10 includes a first electrode layer 120 and a second electrode layer 130, and the display panel includes an organic light emitting layer 210, a third electrode layer 220, an encapsulation layer 230, a first protection layer 240, a quantum dot layer 250, a sensing layer 310, and a fourth electrode layer 320. The organic light emitting layer 210 is located on the driving backplane 10 and covers the first electrode layer 120; the third electrode layer 220 is located on the side of the organic light emitting layer 210 away from the driving backplane 10; the packaging layer 230 is located on the side of the third electrode layer 220 away from the driving back plate 10; the first protection layer 240 is disposed around sidewalls of the organic light emitting layer 210, the third electrode layer 220, and the encapsulation layer 230; the quantum dot layer 250 is located on the side of the packaging layer 230 away from the driving backplane 10; the sensing layer 310 and the fourth electrode layer 320 are located on the side of the second electrode layer 130 away from the driving back plate 10, and the sensing layer 310 is located between the second electrode layer 130 and the fourth electrode layer 320. Wherein the first electrode layer 120, the organic light emitting layer 210, the quantum dot layer 250 and the third electrode constitute the light emitting unit 20; the second electrode layer 130, the sensing layer, and the fourth electrode layer 320 constitute the image sensing unit 30.

Referring to fig. 3, in particular, the first electrode layer 120 is an electrode layer that is disposed in a pattern corresponding to the light emitting unit 20, for example, the first electrode layer 120 is an anode layer of the light emitting unit 20. The second electrode layer 130 is an electrode layer of the image sensing unit 30, for example, the second electrode layer 130 is an anode layer of the image sensing unit 30. The first electrode layer 120 and the second electrode layer 130 may have a three-layer structure, in which the first layer and the third layer may be metal oxide layers such as Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), and Aluminum Zinc Oxide (AZO), and the middle second layer may be a metal layer such as silver or copper. The organic light emitting layer 210 may include only a single layer, that is, only an organic light emitting material layer, or may include a multi-layer structure formed by a hole injection layer, a hole transport layer, a light emitting material layer, an electron transport layer, an electron injection layer, and the like, which are stacked from the first electrode layer 120 to the third electrode layer 220. The sensing layer 310 may be a photosensitive structure in the image sensing unit 30, and the material of the sensing layer 310 may be amorphous Silicon (a-Si), Low Temperature polysilicon (LTPS, also called p-Si), or reduced Graphene Oxide (rGO). The third electrode layer 220 is an electrode layer of the light emitting unit 20, for example, the third electrode layer 220 is a cathode layer of the light emitting unit 20. The fourth electrode layer 320 is an electrode layer of the image sensing unit 30, for example, the fourth electrode layer 320 is a cathode layer of the image sensing unit 30. The third electrode layer 220 and the fourth electrode layer 320 may be ITO transparent electrodes or magnesium silver alloy.

With continued reference to fig. 3, the quantum dot layer 250 may act as a filter layer, and when the quantum dot layer 250 is stimulated by electricity or light, it may emit monochromatic light of various colors according to the diameter of the quantum dots. Illustratively, the organic light emitting layer 210 is a blue light emitting layer, and the quantum dot layer 250 includes red quantum dots 251 and green quantum dots 252. The first electrode layer 120, the organic light emitting layer 210, the quantum dot layer 251, and the third electrode constitute the light emitting unit 21, the first electrode layer 120, the organic light emitting layer 210, the quantum dot layer 252, and the third electrode constitute the light emitting unit 22, and the first electrode layer 120, the organic light emitting layer 210, and the third electrode constitute the light emitting unit 23. The pixel driving circuit in the driving backplane 10 can be electrically connected to the first electrode layer 120 in each light-emitting unit through the via hole 110, so as to provide a driving voltage for the first electrode layer 120 and drive the organic light-emitting layer 210 to emit light. Blue light emitted from the organic light emitting layer 210 may be converted into red light by the red quantum dots 251 so that the light emitting unit 21 forms a red light emitting unit; blue light emitted from the organic light emitting layer 210 may be converted into green light by the green quantum dots 252, so that the light emitting unit 22 forms a green light emitting unit; the organic light emitting layer 210 may also directly emit blue light outward such that the light emitting unit 23 forms a blue light emitting unit, and the display panel thus realizes three-color red, green, and blue display.

The driving circuit in the driving backplane 10 may also be electrically connected to the second electrode layer 130 in the image sensing unit 30 through the via 110 to provide a driving voltage to the second electrode layer 130 to drive the image sensing unit 30 to identify the target. When the display panel works, the external ambient light irradiates to the recognition target, and the sensing layer 310 in the image sensing unit 30 can sense the recognition target, so that the resistance of the sensing layer 310 changes, thereby causing the signal output by the image sensing unit 30 to change. The processor in the display device can convert the signals output by the plurality of image sensing units 30 in the display panel into the position data and the motion data of the recognition target, so as to control the light emitting unit 20 to perform light emitting display according to the position data and the motion data of the recognition target.

In this embodiment, the first electrode layer 120 and the second electrode layer 130 may be disposed on the same layer to ensure that the light emitting unit 20 and the image sensing unit 30 are located on the same plane of the display panel, which is not only convenient for integration of the light emitting unit 20 and the image sensing unit 30 in the display panel, but also beneficial for the image sensing unit 30 to collect the reflected light of the identification target, and no complicated light path needs to be designed, thereby reducing the production difficulty and the production cost.

Referring to fig. 3, the Encapsulation layer 230 may be a Thin-Film Encapsulation (TFE) layer, and the material of the Encapsulation layer 230 may be an organic Film, an inorganic Film, or a stack of inorganic films on the organic Film, such as silicon dioxide. The encapsulation layer 230 covers the light emitting unit 20 to encapsulate the fabricated light emitting unit 20, thereby protecting the light emitting unit 20 from water and oxygen. The first protection layer 240 is disposed around the sidewalls of the organic light emitting layer 210, the third electrode layer 220 and the encapsulation layer 230, preferably, the material of the first protection layer 240 includes silicon nitride, and by disposing the first protection layer 240, the sidewalls of the light emitting unit 20 can be protected, so as to further prevent the light emitting unit 20 from being corroded by water and oxygen and failing.

With continued reference to fig. 3, an insulating layer 260 and a common electrode layer 270 may also be provided in the display panel; the insulating layer 260 covers the second electrode layer 130, the sensing layer 310, and the fourth electrode layer 320; the common electrode layer 270 is located on a side of the insulating layer 260 away from the driving backplane 10, and the common electrode layer 270 is connected to the third electrode layer 220 and the fourth electrode layer 320 through a via hole. The insulating layer 260 may be an interlayer insulating layer for insulating each film layer in the image sensing unit 30 from other film layers. The common electrode layer 270 covers the side of the encapsulation layer 230, the first protection layer 240, and the insulation layer 260 away from the driving backplane 10, and via holes may be opened on the side of the encapsulation layer 230 and the insulation layer 260 away from the driving backplane 10, so that the common electrode layer 270 can be connected with the third electrode layer 220 and the fourth electrode layer 320 through the via holes. The common electrode layer 270 may serve as a common electrode for the light emitting unit 20 and the image sensing unit 30, for example, as a common cathode, and an electrical signal can be simultaneously transmitted to the light emitting unit 20 and the image sensing unit 30 through the common electrode layer 270. Preferably, the material of the common electrode layer 270 may be a semi-transparent conductive material, such as aluminum, silver, or other metal material. This arrangement is advantageous in that it can prevent crosstalk between light emitted from the light emitting unit 20 and light reflected from the recognition target to the image sensing unit 30, thereby affecting the recognition result of the image sensing unit 30.

Fig. 4 is a schematic cross-sectional structure diagram of another display panel provided in an embodiment of the present invention, which may be a schematic partial cross-sectional structure diagram of the display panel in a manufacturing process. With reference to fig. 3 and 4, the display panel further includes a pixel defining layer 280, a second protective layer 292, a third protective layer 291, and a lens 330; the pixel defining layer 280 includes a first groove 281, the pixel defining layer 280 is located on a side of the common electrode layer 270 away from the driving backplane 10, the quantum dot layer 250 is located in the first groove 281, and a second groove 282 is further disposed between adjacent first grooves 281 of the pixel defining layer 280; the second protection layer 292 and the third protection layer 291 are sequentially disposed on one side of the pixel defining layer 280 away from the driving backplane 10, and the third protection layer 291 at least covers the second groove 282; the lens 330 is disposed on a side of the second protective layer 292 remote from the pixel defining layer 280, and corresponds to an area where the image sensing unit 30 is located.

In conjunction with fig. 3 and 4, in particular, the pixel defining layer 280 covers the common electrode layer 270, and realizes encapsulation of the light emitting unit 20 and the image sensing unit 30. The first groove 281 is opened in a side of the pixel defining layer 280 away from the driving backplane 10, corresponding to the positions of the first light emitting unit 21 and the second light emitting unit 22, so that the emitted light of the organic light emitting layer 210 can be irradiated outwards through the quantum dot layer 250 in the first groove 281, and the conversion of the light emitting color is realized. Preferably, the pixel defining layer 280 is made of a transparent material, which is advantageous in that the light emitted from the organic light emitting layer 210 in the area where the first recess 281 is not disposed in the pixel defining layer 280, for example, in the area where the third light emitting unit 23 is disposed, can also be directly irradiated to the outside through the pixel defining layer 280, so that the light emitting colors of the first light emitting unit 21, the second light emitting unit 22 and the third light emitting unit 23 are different.

Referring to fig. 4, a second protective layer 292 serves to protect the quantum dot layer 250. Preferably, the material of the second protection layer 292 is alumina, and the thickness of the second protection layer 292 is 50 nm. The third protective layer 291 covers at least the second groove 282 to prevent crosstalk between adjacent light emitting units, thereby affecting the display effect of the display panel. Preferably, the material of the third protection layer 291 is aluminum, and the thickness of the third protection layer 291 is 100 nm. The Lens 330 may be a Micro Lens (Micro Lens) disposed corresponding to an area where the image sensing unit 30 is located, for converging the reflected light of the recognition target of the image sensing unit 30. Because the display panel comprises the image sensing units 30 arranged in an array, and each image sensing unit 30 is correspondingly provided with one lens 330, a micro-lens array is formed in the display panel to collect the reflected light rays of each direction of the recognition target, which is beneficial to accurately recognizing the position information and the motion information of the recognition target, so that the light emitting unit 20 performs light emitting display according to the position information and the motion information of the recognition target, which is beneficial to optimizing the display effect of the display device and improving the human-computer interaction performance of the display device.

With continued reference to fig. 4, the display panel further includes a first glue layer 40 and a cover plate 50, the cover plate 50 being connected to the second protective layer 292 through the first glue layer 40. The first adhesive layer 40 may be a shadowless adhesive (uv adhesive), which is also called a photosensitive adhesive or an ultraviolet light curing adhesive. The cover plate 50 may be a glass cover plate, and the cover plate 50 is connected to the second protection layer 292 through the first glue layer 40 to implement the encapsulation of the display panel.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (9)

1. A display panel with a follow-up function, comprising:

driving the back plate;

the light-emitting units and the image sensing units are positioned on the driving back plate and are arranged in an array;

the light emitting unit emits light according to a received signal, the signal received by the light emitting unit is associated with a signal output by the image sensing unit, and the light emitting unit is configured to emit light according to a target identified by the image sensing unit.

2. The display panel according to claim 1, wherein the light emitting unit includes a first light emitting unit, a second light emitting unit, and a third light emitting unit, and the first light emitting unit, the second light emitting unit, the third light emitting unit, and the image sensing unit are arranged in a matrix shape.

3. The display panel according to claim 1,

the driving back plate comprises a first electrode layer and a second electrode layer;

the display panel includes:

the organic light-emitting layer is positioned on the driving back plate and covers the first electrode layer;

the third electrode layer is positioned on one side of the organic light-emitting layer away from the driving back plate;

the packaging layer is positioned on one side, far away from the driving back plate, of the third electrode layer;

the first protective layer is arranged around the organic light-emitting layer, the third electrode layer and the side wall of the packaging layer;

the quantum dot layer is positioned on one side, far away from the driving backboard, of the packaging layer;

the sensing layer and the fourth electrode layer are positioned on one side, away from the driving back plate, of the second electrode layer, and the sensing layer is positioned between the second electrode layer and the fourth electrode layer;

wherein the first electrode layer, the organic light emitting layer, the quantum dot layer, and the third electrode constitute the light emitting unit;

the second electrode layer, the sensing layer, and the fourth electrode layer constitute the image sensing unit.

4. The display panel according to claim 3, wherein the material of the first protective layer comprises silicon nitride.

5. The display panel according to claim 3, wherein the first electrode layer and the second electrode layer are provided on the same layer.

6. The display panel of claim 3 wherein the quantum dot layer comprises red and green quantum dots.

7. The display panel according to claim 3, further comprising an insulating layer and a common electrode layer;

the insulating layer covers the second electrode layer, the sensing layer and the fourth electrode layer;

the public electrode layer is located on one side, far away from the driving backboard, of the insulating layer, and the public electrode layer is connected with the third electrode layer and the fourth electrode layer through the through hole.

8. The display panel of claim 7, further comprising a pixel definition layer comprising a first groove, the pixel definition layer located on a side of the common electrode layer away from the driving backplane, the quantum dot layer located in the first groove,

a second groove is further formed between the adjacent first grooves of the pixel defining layer, and the display panel further comprises a second protective layer, a third protective layer and a lens;

the second protective layer and the third protective layer are sequentially arranged on one side, away from the driving backboard, of the pixel defining layer, and the third protective layer at least covers the second groove;

the lens is positioned on one side of the second protective layer, which is far away from the pixel defining layer, and is arranged corresponding to the area where the image sensing unit is positioned.

9. The display panel according to claim 8, further comprising a first adhesive layer and a cover plate, wherein the cover plate is connected to the second protective layer through the first adhesive layer.

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