CN212083821U

CN212083821U - Display panel and display device based on eyeball tracking technology

Info

Publication number: CN212083821U
Application number: CN202021036167.0U
Authority: CN
Inventors: 杜晓松; 周文斌; 张峰; 沈倩; 孙剑; 高裕弟
Original assignee: Kunshan Mengxian Electronic Technology Co ltd
Current assignee: Kunshan Mengxian Electronic Technology Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-12-04
Anticipated expiration: 2030-06-08

Abstract

The embodiment of the utility model discloses display panel, display device based on eyeball tracking technology is disclosed. The display panel includes: a plurality of pixels including a sub-pixel unit and an image sensing unit; the sub-pixel units comprise light emitting layers, and the light emitting layers of at least two sub-pixel units have different light emitting colors; the image sensing unit is used for eyeball tracking; a driving backplane carrying the plurality of pixels; the driving back plate is used for receiving an eyeball tracking signal of the image sensing unit and driving the sub-pixel units to emit light according to the eyeball tracking signal, and the sub-pixel units are configured to emit light according to a target tracked by the image sensing unit. Compared with the prior art, the embodiment of the utility model provides a display panel's eyeball tracking effect and display effect have been promoted.

Description

Display panel and display device based on eyeball tracking technology

Technical Field

The embodiment of the utility model provides a relate to and show technical field, especially relate to a display panel, display device based on eyeball tracking technology.

Background

With the continuous development of display technology, the application range of display panels is wider and wider, and the requirements of people on the display panels are higher and higher. For example, the display panel is applied to products such as mobile phones, computers, tablet computers, electronic books, information query machines, wearable devices and the like.

The wearable device includes a Virtual Reality device (VR), an Augmented Reality device (AR), and the like. Compare in ordinary display device, display device such as AR/VR has multiple advantage, has played very big effect in the aspect of the sense of user's promotion immersion, can fall to the ground in national economy life conscientiously. However, the existing display panel has a problem of poor eyeball tracking effect, and the application of the existing display panel to display equipment such as AR/VR is easy to cause user dizziness, which affects user experience.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a display panel, display device based on eyeball tracking technique to promote display panel's eyeball and track effect and display effect.

In order to achieve the technical purpose, the embodiment of the utility model provides a following technical scheme:

a display panel based on eye tracking technology, comprising:

a plurality of pixels including a sub-pixel unit and an image sensing unit; the sub-pixel units comprise light emitting layers, and the light emitting layers of at least two sub-pixel units have different light emitting colors; the image sensing unit is used for eyeball tracking;

a driving backplane carrying the plurality of pixels; the driving back plate is used for receiving an eyeball tracking signal of the image sensing unit and driving the sub-pixel units to emit light according to the eyeball tracking signal, and the sub-pixel units are configured to emit light according to a target tracked by the image sensing unit.

Furthermore, the number of the sub-pixel units in one pixel is three, the number of the image sensing units is one, and the three sub-pixel units and one image sensing unit are arranged in a field shape.

Further, the pixel includes: the pixel structure comprises a red sub-pixel unit, a green sub-pixel unit, a blue sub-pixel unit and an image sensing unit; the light emitting color of the light emitting layer in the red sub-pixel unit is red, the light emitting color of the light emitting layer in the green sub-pixel unit is green, and the light emitting color of the light emitting layer in the blue sub-pixel unit is blue;

red sub-pixel units in the four pixels are adjacently arranged and arranged in a field shape; green sub-pixel units in the four pixels are adjacently arranged and arranged in a field shape; blue sub-pixel units in the four pixels are adjacently arranged and arranged in a field shape; the image sensing units in the four pixels are adjacently arranged and arranged in a field shape.

Further, the driving back plate comprises a plurality of through holes and a plurality of bonding pads corresponding to the through holes one to one, and the image sensing unit is arranged on at least one bonding pad;

the image sensing unit comprises an image sensing layer and a sensing electrode, and the image sensing layer is positioned on one side of the bonding pad, which is far away from the driving backboard; the sensing electrode is positioned on one side of the image sensing layer, which is far away from the driving back plate.

Further, the image sensing unit further comprises a lens, and the lens is located on one side of the sensing electrode, which is far away from the driving back plate.

Further, the image sensing layer includes at least one of amorphous silicon, polycrystalline silicon, and reduced graphene oxide.

Further, the sub-pixel unit is arranged on at least one bonding pad; the sub-pixel unit further comprises a first display electrode, a first semiconductor layer, a second semiconductor layer and a second display electrode;

the first semiconductor layer is located on one side, away from the driving backboard, of the light emitting layer, the first display electrode is located on one side, away from the driving backboard, of the first semiconductor layer, the second semiconductor layer is located on one side, close to the driving backboard, of the light emitting layer, the second display electrode is located on one side, close to the driving backboard, of the second semiconductor layer, and the second display electrode is in contact with the via hole;

the display panel further includes: a first insulating layer on a side of the sub-pixel unit and the image sensing unit away from the driving backplane; the first insulating layer comprises a first opening, a second opening and a groove, the first opening exposes the sensing electrode of the image sensing unit, and the second opening exposes the first display electrode of the sub-pixel unit; the vertical projection of the groove on the driving backboard is positioned between the vertical projections of the adjacent sub-pixel units on the driving backboard, and the vertical projection of the groove on the driving backboard is positioned between the vertical projections of the sub-pixel units and the image sensing unit on the driving backboard.

Further, the display panel further comprises a common electrode, the common electrode is located on one side, away from the driving back plate, of the first insulating layer, and the common electrode covers the first insulating layer; the common electrode is in contact with the sensing electrode of the image sensing unit through the first opening, and is in contact with the first display electrode of the sub-pixel unit through the second opening.

Further, the display panel further includes: the second insulating layer is positioned on one side, far away from the driving backboard, of the common electrode, and covers the common electrode.

Correspondingly, the utility model also provides a display device based on eyeball tracking technology, include: the utility model discloses arbitrary embodiment the display panel based on eyeball tracking technique.

The embodiment of the utility model provides a include sub-pixel unit and image sensing unit through setting up the pixel, image sensing unit is as some of pixel, can distribute each position on display panel for image sensing unit can just to people's eye, is favorable to promoting the accuracy that the eyeball was tracked. And the embodiment of the utility model provides an in sub-pixel unit is configured to follow the eyeball tracking according to image sensing unit and gives out light, can adjust the display image according to eyeball motion in real time. Therefore, compared with the prior art, the embodiment of the utility model provides a promoted the effect that the eyeball was tracked, be favorable to biological identification and regulation IPD interpupillary distance to and when being applied to display equipment such as AR/VR with it, optimized display device's display effect, be favorable to alleviating the dizzy phenomenon of user, improved display panel's the efficiency of rendering up, promoted user's the sense of immersing, and strengthened display device's human-computer interaction performance.

Drawings

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

fig. 2 is a schematic cross-sectional view of another display panel based on an eye tracking technology according to an embodiment of the present invention;

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

fig. 4 is a schematic cross-sectional view of another display panel based on an eye tracking technology according to an embodiment of the present invention;

fig. 5 is a schematic top view of a display panel based on an eye tracking technology according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a display device based on an eyeball tracking technology 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.

The embodiment of the utility model provides a display panel based on eyeball tracking technology, this display panel is applicable to display device such as AR/VR. The display panel may be an Organic Light-Emitting Diode (OLED) display panel, a Micro Light-Emitting Diode (Micro LED) display panel, a Quantum Dot Light-Emitting Diode (QLED) display panel, or the like.

Fig. 1 is a schematic cross-sectional structure view of a display panel based on an eyeball tracking technology according to an embodiment of the present invention. Referring to fig. 1, the display panel based on the eye tracking technology includes a driving backplate 10 and a plurality of pixels 20 located on the driving backplate 10, and a specific structure of one pixel 20 is exemplarily shown in fig. 1. The pixel 20 includes a sub-pixel unit 210 and an image sensing unit 220. Fig. 1 exemplarily shows that one pixel 20 includes three sub-pixel units 210 and one image sensing unit 220. The sub-pixel units comprise light-emitting layers, and the light-emitting layers of at least two sub-pixel units 210 have different light-emitting colors so as to realize full-color display of the pixel 20; the image sensing unit 220 is used for eye tracking. The driving backplane 10 carries a plurality of pixels 20; the driving backplane 10 is configured to receive an eye tracking signal of the image sensing unit 220 and drive the sub-pixel unit 210 to emit light, and the sub-pixel unit 210 is configured to emit light according to a target tracked by the image sensing unit 220.

The pixel 20 includes a sub-pixel unit 210 and an image sensing unit 220, that is, the image sensing unit 220 as a part of the pixel 20 may be distributed at various positions on the display panel. The driving backplane 10 refers to a film structure that can provide driving signals for the display panel and play roles of buffering, protecting, supporting, and the like. The driving backplane 10 may be, for example, a silicon-based backplane, and a driving circuit, such as a pixel driving circuit or a CMOS driving circuit, is disposed in the driving backplane 10 for driving the sub-pixel units 210 to emit light. In the embodiment of the present invention, optionally, the driving back plate 10 is further configured to receive an eyeball tracking signal of the image sensing unit 220, so that the sub-pixel unit 210 can emit light according to the target tracked by the image sensing unit 220.

For example, the display panel works in such a way that external ambient light (e.g., natural light, light or panel light) is irradiated onto an eyeball that is watching a picture, and the eyeball reflects the light to the image sensing unit 220. The image sensing unit 220 can sense light reflected from each position of an eyeball to determine pupil position information and eye movement data of the human eye in real time. The image sensing unit 220 can output signals based on the pupil position information and the eye movement data, and the driving chip or the driving back plate 10 can determine the display data according to the signals output by the image sensing unit 220 to drive the sub-pixel units 210 to emit light, so that the display panel displays images. And the image displayed by the display panel can be adjusted in real time according to the pupil position and the eye movement condition of human eyes.

In addition, human-computer interaction can be carried out according to the pupil position and the eye movement condition of human eyes, for example, when the human eyes are detected to move up and down, confirmation (YES) is indicated; when the left-right movement of the human eyes is detected, Negative (NO) is indicated; as another example, when a low-frequency blinking motion is detected, a confirmation (YES) is indicated; negative (NO) when high frequency blinking motion is detected; when the human eyes are detected to move up and down, page turning up and down is indicated; when the human eyes are detected to move left and right, the system indicates to turn pages left and right or select an up-down menu, and the like. Therefore, 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 the eye movement condition of human eyes, so that the human-computer interaction is more intelligent.

The embodiment of the utility model provides a include subpixel unit 210 and image sensing unit 220 through setting up pixel 20, image sensing unit 220 is as some of pixel 20, can distribute each position on display panel for image sensing unit 220 can just to people's eye, is favorable to promoting the accuracy that the eyeball was tracked. And the sub-pixel unit 210 in the embodiment of the present invention is configured to emit light according to the eye tracking of the image sensing unit 220, and can adjust the display image in real time according to the eye movement. Therefore, compared with the prior art, the embodiment of the utility model provides an effect that the eyeball was tracked has been promoted, is favorable to biological identification and adjusts IPD interpupillary distance to and when being applied to display device such as AR/VR, optimized display device's display effect, be favorable to alleviating the dizzy phenomenon of user, improved display panel's the efficiency of rendering up, promoted user's the sense of immersing, and strengthened display device's human-computer interaction performance.

In addition to the above embodiments, there are various arrangements of the film layer structures of the sub-pixel unit 210 and the image sensing unit 220, and the following description will be made about some of these arrangements, but the present invention is not limited thereto.

Fig. 2 is a schematic cross-sectional structure diagram of another display panel based on an eye tracking technology according to an embodiment of the present invention. Referring to fig. 2, in an embodiment of the present invention, optionally, the driving back plate 10 includes a plurality of via holes 11 and a plurality of pads 12 corresponding to the plurality of via holes 11 one to one, and the image sensing unit 220 is disposed on at least one pad 12. The pad 12 contacting the image sensing unit 220 may be regarded as an anode of the image sensing unit 220, and the via hole 11 is filled with a conductive material to electrically connect the image sensing unit 220 and the driving back plate 10. The image sensing unit 220 includes an image sensing layer 221 and a sensing electrode 222. Wherein the image sensing layer 221 is located on the side of the pad 12 away from the driving backplane 10. The image sensing layer 221 is a photosensitive structure in the image sensing unit 220, and the image sensing layer 221 may include at least one of amorphous silicon (a-Si), poly-silicon (p-Si), and reduced graphene oxide, for example. The sensing electrode 222 is located on the side of the image sensing layer 221 away from the driving backplane 10. The sensing electrode 222 may be a cathode, and the material of the cathode may be an ITO transparent electrode, magnesium-silver alloy, aluminum, or the like.

Fig. 3 is a schematic cross-sectional view of another display panel based on an eye tracking technology according to an embodiment of the present invention. Referring to fig. 3, in an embodiment of the present invention, optionally, the image sensing unit 220 further includes a lens 223, and the lens 223 is located on a side of the sensing electrode 222 away from the driving back plate 10. The lens 223 can converge light reflected by human eyes to the image sensing layer 221, so that the illumination intensity of the image sensing layer 221 is enhanced, and the sensing precision is improved.

Alternatively, the Lens 223 is a Micro Lens (Micro Lens), and one Lens 223 or a plurality of lenses 223 are disposed corresponding to each image sensing unit 220. Thus, a micro-lens array is formed in the display panel to collect light rays reflected by the eyeballs in all directions, which is helpful for accurately identifying the position information and the motion information of the eyeballs, so that the pixels 20 perform light emitting display according to the position information and the motion information of the eyeballs, and the display effect and the human-computer interaction performance of the display panel are facilitated to be optimized.

Fig. 4 is a schematic cross-sectional view of another display panel based on an eye tracking technology according to an embodiment of the present invention. Referring to fig. 4, in an embodiment of the present invention, optionally, the sub-pixel unit 210 is a Micro light emitting diode (Micro LED), and compared to other types of sub-pixel units, the size of the Micro LED can be reduced to micron level, and the Micro LED is a self-emitting display as with an organic light emitting diode, and has good material stability, long service life and better application prospect. The sub-pixel unit 210 is disposed on at least one pad 12; the sub-pixel unit 210 further includes a first display electrode 212, a first semiconductor layer 214, a second semiconductor layer 213, and a second display electrode 215. The first semiconductor layer 214 is located on a side of the light emitting layer 211 away from the driving backplane 10, and the material of the first semiconductor layer 214 may be, for example, N-type gallium nitride (N-GaN). The first display electrode 212 is located on a side of the first semiconductor layer 214 away from the driving backplane 10, and the first display electrode 212 may be a cathode N-pad, for example. The second semiconductor layer 213 is located on a side of the light-emitting layer 211 close to the driving backplane 10, and the material of the second semiconductor layer 213 may be P-type gallium nitride (P-GaN), for example. The material of the light-emitting layer 211 may be, for example, a Multiple Quantum Well (MQW). The second display electrode 215 is located on a side of the second semiconductor layer 213 close to the driving backplane 10, the second display electrode 215 may be, for example, an anode P-pad, the second display electrode 215 is in contact with the pad 12, and the driving backplane 10 provides a driving current or a driving voltage to the sub-pixel unit 210 through the second display electrode 215.

The display panel further includes a first insulating layer 230, the first insulating layer 230 is located at a side of the sub-pixel unit 210 and the image sensing unit 220 away from the driving backplane 10; the first insulating layer 230 includes a first opening exposing the sensing electrode 222 of the image sensing unit 220, a second opening, and a groove, and the exposed sensing electrode 222 is used to contact the common cathode to provide a conductive path for the pixel sensing unit. The second opening exposes the first display electrode 212 of the sub-pixel unit 210, and the exposed first display electrode 212 is used for contacting with a common cathode to provide a conductive path for the sub-pixel unit 210. The vertical projection of the grooves on the driving backplane 10 is located between the vertical projections of the adjacent sub-pixel units 210 on the driving backplane 10, and the vertical projection of the grooves on the driving backplane 10 is located between the vertical projections of the sub-pixel units 210 and the image sensing unit 220 on the driving backplane 10. The provision of the first insulating layer 230 achieves protection and insulation of the first display electrode 212, the first semiconductor layer 214, the light emitting layer 211, the second semiconductor layer 213, and the second display electrode 215. Illustratively, the first insulating layer 230 is a Thin-Film Encapsulation (TFE) layer, which may be made of an organic Film, an inorganic Film, or a stack of inorganic films on an organic Film.

With continued reference to fig. 4, in an embodiment of the present invention, optionally, the display panel further includes a common electrode 240, the common electrode 240 is located on a side of the first insulating layer 230 away from the driving back plate 10, and the common electrode 240 covers the first insulating layer 230. That is, the common electrode 240 covers sidewalls and a bottom of the first opening, sidewalls and a bottom of the second opening, and sidewalls and a bottom of the groove. The common electrode 240 contacts the sensing electrode 222 of the image sensing unit 220 through the first opening, and contacts the first display electrode 212 of the sub-pixel unit 210 through the second opening. The common electrode 240 is a common cathode of each sub-pixel unit 210 and the image sensing unit 220, and simultaneously provides a common voltage for each sub-pixel unit 210 and the image sensing unit 220. The material of the common electrode 240 may be, for example, an ITO transparent electrode, a magnesium silver alloy, or aluminum (Al). The common electrode 240 also serves to prevent crosstalk between different sub-pixel units 210 and crosstalk between the sub-pixel units 210 and the image sensing unit 220.

With continued reference to fig. 4, in an embodiment of the present invention, optionally, the display panel further includes a second insulating layer 250, where the second insulating layer 250 is located on a side of the common electrode 240 away from the driving back plate 10; the second insulating layer 250 covers the common electrode 240. Optionally, a new groove is formed at a position where the common electrode 240 covers the first opening, the second opening, and the groove, and the second insulating layer 250 is disposed to cover the common electrode 240, so as to protect the common electrode 240 and planarize the common electrode. The second insulating layer 250 is illustratively a Thin-Film Encapsulation (TFE) layer, and the material of the TFE layer may be an organic Film, an inorganic Film, or a stack of inorganic films on an organic Film.

With continued reference to fig. 4, in an embodiment of the present invention, optionally, the display panel further includes a glue layer 30 and a cover plate 40, and the cover plate 40 encapsulates the display panel through the glue layer 30. Wherein, the glue layer 30 can be a UV glue, also called photosensitive glue or ultraviolet light curing glue; the cover plate 40 may be a glass cover plate.

On the basis of the above embodiments, there are optionally various arrangements of the sub-pixel unit 210 and the image sensing unit 220, and in the following embodiments, specific arrangements thereof are further defined.

Fig. 5 is a schematic top view of a display panel based on an eye tracking technology according to an embodiment of the present invention. Referring to fig. 5, in an embodiment of the present invention, optionally, the number of the sub-pixel units in one pixel 20 is three, the number of the image sensing units is one, and the three sub-pixel units and the one image sensing unit are arranged in a grid shape to form a square. In the display panel, the field-shaped structures are arranged in an array, so that the compactness of the pixels 20 is facilitated, and the display effect of the pixels 20 is improved. Preferably, the areas of the four sub-pixel units are the same, so that the arrangement of the pixel 20 is more compact, and the control of the light emitting brightness of the sub-pixel units and the color displayed by the pixel 20 is facilitated.

With continuing reference to fig. 5, optionally, the pixel 20 includes: a red sub-pixel unit R, a green sub-pixel unit G, a blue sub-pixel unit B and an image sensing unit S; the light emitting color of the light emitting layer in the red sub-pixel unit R is red, the light emitting color of the light emitting layer in the green sub-pixel unit G is green, and the light emitting color of the light emitting layer in the blue sub-pixel unit B is blue. The image sensing unit S does not emit light and may be provided in a transparent or semi-transparent structure, approximately seen as a white sub-pixel unit.

In the region 91, the red sub-pixel units R in the four pixels 20 are adjacently arranged and arranged in a field shape; in the region 92, the green sub-pixel units G in the four pixels 20 are adjacently arranged and arranged in a field shape; in the region 93, the blue sub-pixel units B in the four pixels 20 are adjacently arranged and arranged in a field shape; in the region 94, the image sensing units S in the four pixels 20 are arranged adjacently in a matrix arrangement. In this way, four sub-pixel units with the same color are arranged in a concentrated manner, and four image sensing units S are arranged in a concentrated manner, so that the image sensing layers 221 and the sensing electrodes 222 in the four image sensing units S can be formed in one process in the manufacturing process of the display panel. Compared with the case where the image sensing layers 221 and the sensing electrodes 222 in the four image sensing units S need to be formed one by one, the arrangement of the pixels 20 provided in the present embodiment can reduce the size of the image sensing units S with reduced process accuracy, which is advantageous for integrating the image sensing units S in the pixels 20.

With continued reference to fig. 5, optionally, two pixels 20 adjacent in the column direction are arranged in mirror image, such as a first row of fifth column pixels 20 and a second row of fifth column pixels 20 adjacent in the column direction and arranged in mirror image with respect to the row direction. Two pixels 20 adjacent in the row direction are arranged in a mirror image, for example, the first row, the fourth column of pixels 20 and the first row, the fifth column of pixels 20 are adjacent in the row direction and arranged in a mirror image with respect to the column direction. The first row and fourth column of pixels 20, the first row and fifth column of pixels 20, the second row and fourth column of pixels 20 and the second row and fifth column of pixels 20 are diagonally arranged, and the four pixels 20 are arranged in a field shape. So arranged, it is advantageous that sub-pixel units of the same color are adjacently arranged, thereby increasing the number of pixels 20 per unit area; and real RGB three-color display can be realized.

On the basis of the above-described embodiments, the pixels 20 provided with the image sensing units S may be arranged over the entire display panel; or the pixels 20 provided with the sensing units of the pixels 20 are arranged only in a partial area on the display panel, which may be, for example, an area facing the eyeball.

The embodiment of the utility model provides a still provide a display device based on eyeball tracking technology, this display device can be AR glasses or VR glasses etc. for example. Fig. 6 is a schematic structural diagram of a display device based on an eyeball tracking technology according to an embodiment of the present invention. Referring to fig. 6, the display device includes the display panel 1 based on the eyeball tracking technology provided in any embodiment of the present invention, and the technical principle and the effect thereof are similar and will not be described again.

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

1. A display panel based on eye tracking technology, comprising:

2. The display panel according to claim 1, wherein the number of the sub-pixel units in one pixel is three, the number of the image sensing units is one, and three sub-pixel units and one image sensing unit are arranged in a field-shaped manner.

3. The eye tracking technology-based display panel according to claim 2, wherein the pixels comprise: the pixel structure comprises a red sub-pixel unit, a green sub-pixel unit, a blue sub-pixel unit and an image sensing unit; the light emitting color of the light emitting layer in the red sub-pixel unit is red, the light emitting color of the light emitting layer in the green sub-pixel unit is green, and the light emitting color of the light emitting layer in the blue sub-pixel unit is blue;

4. The display panel based on eye tracking technology according to claim 1,

the driving back plate comprises a plurality of through holes and a plurality of bonding pads in one-to-one correspondence with the through holes, and the image sensing unit is arranged on at least one bonding pad;

5. The display panel based on eye tracking technology of claim 4, wherein the image sensing unit further comprises a lens located on a side of the sensing electrode away from the driving back plate.

6. The eyeball tracking technology-based display panel of claim 4, wherein the image sensing layer comprises at least one of amorphous silicon, polycrystalline silicon and reduced graphene oxide.

7. The display panel based on eye tracking technology of claim 4, wherein the sub-pixel unit is disposed on at least one of the pads; the sub-pixel unit further comprises a first display electrode, a first semiconductor layer, a second semiconductor layer and a second display electrode;

8. The display panel based on the eyeball tracking technology of claim 7, further comprising a common electrode, wherein the common electrode is located on a side of the first insulating layer away from the driving back plate, and the common electrode covers the first insulating layer; the common electrode is in contact with the sensing electrode of the image sensing unit through the first opening, and is in contact with the first display electrode of the sub-pixel unit through the second opening.

9. The eyeball tracking technology-based display panel of claim 8, further comprising:

the second insulating layer is positioned on one side, far away from the driving backboard, of the common electrode, and covers the common electrode.

10. A display device based on eye tracking technology, comprising: an eye tracking technology based display panel according to any one of claims 1 to 9.