Display apparatus, electroluminescent display panel and method of acquiring and displaying image by display apparatus
Embodiments of the present disclosure disclose a display apparatus, an electroluminescent display panel and a method of acquiring and displaying an image by the display apparatus. The display apparatus includes an electroluminescent display panel; and a camera. The electroluminescent display panel includes: a substrate; and a plurality of pixel units disposed in a display area on the substrate and each including at least two sub-pixels. The display area has an image acquiring region including the sub-pixels, at least one of the sub-pixels in the image acquiring region has an opaque display zone and a transparent zone, and the camera is disposed on a side, facing away from the pixel units, of the substrate of the electroluminescent display panel.
1. A display apparatus comprising:
an electroluminescent display panel; and a camera, wherein:
the electroluminescent display panel comprises:
a substrate comprising a display area; and
a plurality of sub-pixels disposed in the display area,
wherein the display area has at least one image acquiring region comprising continuous ones of the plurality of sub-pixels, and at least one of the sub-pixels in the image acquiring region has an opaque display zone and a transparent zone which is configured to enable the camera to acquire an image;
wherein the camera is disposed on a side, facing away from the plurality of sub-pixels, of the substrate of the electroluminescent display panel;
wherein an orthogonal projection of the camera on the substrate at least partly overlaps an orthogonal projection of the transparent zones in the image acquiring region on the substrate; and
wherein each of the sub-pixels in the image acquiring region comprises an organic light-emitting structure, and the organic light-emitting structure is disposed in both the opaque display zone and the transparent zone, such that the organic light-emitting structure emits a light in both the opaque display zone and the transparent zone so that a display function is achieved in both the transparent zone and the opaque display zone.
2. The display apparatus of claim 1 , wherein:
each of the sub-pixels in the image acquiring region further comprises a control circuit connected with the organic light-emitting structure.
3. The display apparatus of claim 2 , wherein:
the control circuit is disposed only in the opaque display zone.
4. The display apparatus of claim 2 , wherein:
the organic light-emitting structure comprises: an anode, an electroluminescent material and a cathode, which are stacked in sequence on the substrate; and
a portion of the anode in the opaque display zone is a reflecting electrode and is electrically connected with the control circuit, and the cathode is a transparent electrode.
5. The display apparatus of claim 1 , further comprising:
a processor configured to process an image acquired by the camera and having a first resolution, to display the processed image at a second resolution, wherein the first resolution is a multiple of the second resolution.
6. The display apparatus of claim 1 , wherein:
the orthogonal projection of the camera on the substrate overlaps an orthogonal projection of the image acquiring region on the substrate.
7. A method of acquiring and displaying an image by the display apparatus of claim 1 , the method comprising:
acquiring, by the camera, an image having a first resolution while no picture is displayed through the sub-pixels in the image acquiring region of the electroluminescent display panel; and
displaying the acquired image at a second resolution, wherein the first resolution is a multiple of the second resolution.
8. The method of claim 7 , wherein:
displaying the acquired image at the second resolution comprises:
by assuming that at least every two adjacent pixels in the image having the first resolution are a set of pixels, displaying sub-pixels of each color in each set of pixels, at an average of gray scale values of the sub-pixels of the each color.
9. The method of claim 7 , wherein:
displaying the acquired image at the second resolution comprises:
displaying ones, having a luminance greater than a preset luminance threshold value, of pixels in the image having the first resolution.
10. The method of claim 7 , wherein:
displaying the acquired image at the second resolution comprises:
obtaining a transition image by removing ones, having a luminance less than a preset luminance threshold value, of the pixels in the image having the first resolution; and by assuming that at least every two adjacent pixels in the transition image are a set of pixels, displaying sub-pixels of each color in each set of pixels, at an average of gray scale values of the sub-pixels of the each color.
11. An electroluminescent display panel comprising:
a substrate comprising a display area; and
a plurality of sub-pixels disposed in the display area,
wherein the display area has at least one image acquiring region comprising continuous ones of the plurality of sub-pixels, and at least one of the sub-pixels in the image acquiring region has an opaque display zone and a transparent zone which is configured to enable a camera to acquire an image; and
wherein each of the sub-pixels in the image acquiring region comprises an organic light-emitting structure, and the organic light-emitting structure is disposed in both the opaque display zone and the transparent zone, such that the organic light-emitting structure emits a light in both the opaque display zone and the transparent zone so that a display function is achieved in both the transparent zone and the opaque display zone.
12. The electroluminescent display panel of claim 11 , wherein:
each of the sub-pixels in the image acquiring region further comprises a control circuit connected with the organic light-emitting structure.
13. The electroluminescent display panel of claim 12 , wherein:
the control circuit is disposed only in the opaque display zone.
14. The electroluminescent display panel of claim 12 , wherein:
the organic light-emitting structure comprises: an anode, an electroluminescent material and a cathode, which are stacked in sequence on the substrate; and
a portion of the anode in the opaque display zone is a reflecting electrode and is electrically connected with the control circuit, and the cathode is a transparent electrode.
15. The electroluminescent display panel of claim 11 , wherein:
in the image acquiring region,
the sub-pixels are arranged in an array, the opaque display zone and the transparent zone of each of the sub-pixels are arranged in a column direction, and the opaque display zones and the transparent zones of each row of sub-pixels are arranged in an array comprising a first sub-row and a second sub-row;
in each odd-numbered row of sub-pixels, the opaque display zones are arranged in one of the first sub-row and the second sub-row, and the transparent zones are arranged in the other of the first sub-row and the second sub-row;
in each even-numbered row of sub-pixels, the transparent zones are arranged in the one of the first sub-row and the second sub-row, and the opaque display zones are arranged in the other of the first sub-row and the second sub-row; and
the first or second sub-row of transparent zones in one row of sub-pixels of at least two adjacent rows of sub-pixels are disposed to be adjacent to the second or first sub-row of transparent zones in the other row of sub-pixels of the at least two adjacent rows of sub-pixels.
16. The electroluminescent display panel of claim 11 , wherein:
in the image acquiring region, the sub-pixels are arranged in an array, the opaque display zone and the transparent zone of each of the sub-pixels are arranged in a row direction, and the opaque display zones and the transparent zones of each column of sub-pixels are arranged in an array comprising a first sub-column and a second sub-column;
in each odd-numbered column of sub-pixels, the opaque display zones are arranged in one of the first sub-column and the second sub-column, and the transparent zones are arranged in the other of the first sub-column and the second sub-column;
in each even-numbered column of sub-pixels, the transparent zones are arranged in the one of the first sub-column and the second sub-column, and the opaque display zones are arranged in the other of the first sub-column and the second sub-column; and
the first or second sub-column of transparent zones in one column of sub-pixels of at least two adjacent columns of sub-pixels are disposed to be adjacent to the second or first sub-column of transparent zones in the other column of sub-pixels of the at least two adjacent columns of sub-pixels.
17. The electroluminescent display panel of claim 11 , wherein:
the transparent zone occupies 30%-70% of an area of the sub-pixel.