Display screen

1. A display screen comprising: a panel, a light-emitting plate, a light blocking film and an image sensor that are stacked, wherein

the light blocking film is provided with a light-transmitting imaging pinhole;

the light-emitting plate is provided with a plurality of light-emitting units and an opaque circuit network for driving the plurality of light-emitting units, the light-emitting plate being separated into a plurality of light-transmitting regions by the circuit network, and a light path being formed by the panel, the light-transmitting region corresponding to a position of the imaging pinhole and the imaging pinhole; or, the light-emitting plate is a plane light-emitting plate which is light transmissive, a light path being formed by the panel, the plane light-emitting plate and the imaging pinhole;

the panel, the light-emitting plate, the light blocking film and the image sensor are arranged so that a reflected part, by a target object located on or outside the panel, of light projected by the light-emitting plate toward the panel is transmissible onto the image sensor through the light path, and

wherein the display screen further comprises a light-transmitting substrate provided between the light blocking film and the image sensor, and a low-refractive index light-transmitting layer provided between the light-transmitting substrate and the image sensor.

2. The display screen according to claim 1 , wherein

a region of the light-emitting plate corresponding to a field-of view (FOV) angle of the imaging pinhole does not emit light.

3. A display screen comprising: a panel, a light-emitting plate, a light blocking film and an image sensor that are stacked, wherein

the light blocking film is provided with a light-transmitting imaging pinhole;

the light-emitting plate is provided with a plurality of light-emitting units and an opaque circuit network for driving the plurality of light-emitting units, the light-emitting plate being separated into a plurality of light-transmitting regions by the circuit network, and a light path being formed by the panel, the light-transmitting region corresponding to a position of the imaging pinhole and the imaging pinhole; or, the light-emitting plate is a plane light-emitting plate which is light transmissive, a light path being formed by the panel, the plane light-emitting plate and the imaging pinhole;

the panel, the light-emitting plate, the light blocking film and the image sensor are arranged so that a reflected part, by a target object located on or outside the panel, of light projected by the light-emitting plate toward the panel is transmissible onto the image sensor through the light path;

the light blocking film is provided with a plurality of the imaging pinholes; and

an image-side FOV angle of the imaging pinhole is 2α, a distance between the centers of adjacent imaging pinholes is d, and a distance from a imaging surface of the image sensor to the light blocking film is h, where d≥2h tan α.

4. A display screen, comprising:

a panel, a light-emitting plate and an image sensor that are stacked; wherein

a side of the light-emitting plate facing the image sensor is provided with a lighttight material, an imaging pinhole which is light transmissive being provided on the lighttight materials; and

the panel, the light-emitting plate, the light blocking film and the image sensor are arranged so that a reflected a part, by a target object located on or outside the panel, of light projected by the light-emitting plate toward the panel is transmissible onto the image sensor through a light path formed by the panel and the imaging pinhole; and

the lighttight material includes an opaque electrode layer, an imaging pinhole which is light transmissive being provided on the opaque electrode layer.

5. The display screen according to claim 4 , wherein

a region of the light-emitting plate corresponding to an FOV angle of the imaging pinhole does not emit light.

6. A display screen, comprising:

a panel, a light-emitting plate and an image sensor that are stacked; wherein

a side of the light-emitting plate facing the image sensor is provided with a lighttight material, an imaging pinhole which is light transmissive being provided on the lighttight materials;

the panel, the light-emitting plate, the light blocking film and the image sensor are arranged so that a reflected part, by a target object located on or outside the panel, of light projected by the light-emitting plate toward the panel is transmissible onto the image sensor through a light path formed by the panel and the imaging pinhole, and

wherein the display screen further comprises a light-transmitting substrate provided between the light-emitting plate and the image sensor, and a low-refractive index light-transmitting layer provided between the light-transmitting substrate and the image sensor.

7. A display screen, comprising:

a panel, a light-emitting plate and an image sensor that are stacked; wherein

a side of the light-emitting plate facing the image sensor is provided with a lighttight material, an imaging pinhole which is light transmissive being provided on the lighttight materials;

the panel, the light-emitting plate, the light blocking film and the image sensor are arranged so that a reflected part, by a target object located on or outside the panel, of light projected by the light-emitting plate toward the panel is transmissible onto the image sensor through a light path formed by the panel and the imaging pinhole;

a light blocking film is formed by the lighttight material and is provided with a plurality of the imaging pinholes; and

an image-side FOV angle of the imaging pinhole is 2α, a distance between the centers of adjacent imaging pinholes is d, and a distance from a imaging surface of the image sensor to the light blocking film is h, where d≥2h tan α.

8. A display screen comprising a panel, a light-emitting plate, and a narrow-FOV-pixel image sensor which is provided at a side of the light-emitting plate, the narrow-FOV-pixel image sensor includes imaging pixels with a FOV angle less than 15°, wherein

the light-emitting plate is provided with a plurality of light-emitting units and an opaque circuit network for driving the plurality of light-emitting units, the light-emitting plate being separated into a plurality of light-transmitting regions by the circuit network, and a light path being formed by the panel and the light-transmitting region; or, the light-emitting plate is a plane light-emitting plate which is light transmissive, a light path being formed by the panel and the plane light-emitting plate; and

the panel, the light-emitting plate, and the narrow-FOV-pixel image sensor are arranged so that a reflected part, by a target object located on or outside the panel, of light projected by the light-emitting plate toward the panel is transmissible onto the narrow-FOV pixel image sensor through the light path.

9. The display screen according to claim 8 , wherein

the narrow-FOV-pixel image sensor includes a light blocking film, a transparent material layer and microlenses that are provided sequentially on a side of the imaging pixels, the light blocking film is provided with light-transmitting pinholes corresponding to positions of the microlenses, and the FOV angle of the imaging pixel is constrained as less than 15° by the microlens, the transparent material layer and the light-transmitting pinhole;

a low-refractive index light-transmitting layer with a refractive index lower than that of the microlenses is provided between the microlenses and the light-emitting plate; and

light emitted by the light-emitting plate is reflected by a target object located on or outside the panel, passes through the light path, the low-refractive index light-transmitting layer, the microlens, the transparent material layer and the light-transmitting pinhole successively, and then is irradiated onto the imaging pixels.

10. The display screen according to claim 8 , wherein

the narrow-FOV-pixel image sensor has a light-blocking plate provided between the light-emitting plate and the imaging pixels, the light-blocking plate is provided with light-transmitting holes, a thickness x of the light-blocking plate and a diameter Y of the light-transmitting hole meet

2

⁢

⁢

arctan

⁢

y

x

≤

15

⁢

°

;

and

light emitted by the light-emitting plate is reflected by a target object located on or outside the panel, passes through the light path and the light-transmitting hole successively, and then is irradiated onto the imaging pixels.

11. The display screen according to claim 8 , wherein

the narrow-FOV-pixel image sensor further comprises light guide fibers provided between the light-emitting plate and the imaging pixels, an endface receiving angle of the light guide fiber being less than 15°; and

light emitted by the light-emitting plate is reflected by a target object located on or outside the panel, passes through the light path and the light guide fiber successively, and then is irradiated onto the imaging pixel.