Pixel element structure, array structure and display device

1. A display device, comprising:

an array structure comprising a plurality of primary pixel element structures arranged in a matrix;

wherein a primary pixel element structure comprises a plurality of pixel element structures arranged in a second direction,

a pixel element structure comprises first, second, and third sub-pixel elements, each comprising a light-emitting region and a light-transmitting region disposed at one side of the light-emitting region and adjacent to the light-emitting region in a first direction, and the first direction being perpendicular to the second direction,

wherein:

the light-transmitting regions of the first, second, and third sub-pixel elements in the pixel element structure are combined to form a pixel light-transmitting region,

when the display device is turned off, a scene on an opposite side of the display device is observed by an observer on either side of the display device, and

when the display device is turned on, a scene on the opposite side of the display device is observed by the observer on a side where no light is emitted.

2. The display device according to claim 1 , wherein:

the pixel light-transmitting regions of the plurality of pixel element structures in the primary pixel element structure are combined to form a primary pixel light-transmitting region.

3. The display device according to claim 1 , wherein the pixel light-transmitting region is a continuous light-transmitting region without any light-emitting regions and light-shielding regions.

4. The display device according to claim 2 , wherein the primary pixel light-transmitting region is a continuous light-transmitting region without any light-emitting regions and light-shielding regions.

5. The display device according to claim 2 , wherein the primary pixel light-transmitting region is arranged as a transparent film layer structure comprising a transparent insulation layer and a transparent organic film layer.

6. The display device according to claim 2 , further comprising a color film substrate disposed opposite to the array structure.

7. The display device according to claim 6 , wherein the color film substrate further comprises:

a plurality of primary color barriers arranged in a matrix and one-to-one corresponding to the plurality of primary pixel element structures of the array structure,

wherein a primary color barrier comprises:

a plurality of first color barriers, a plurality of second color barriers and a plurality of third color barriers corresponding to the light-emitting regions of the first, second, and third sub-pixel elements of the plurality of pixel element structures in the primary pixel element structure, respectively; and

a primary transparent region corresponding to the primary pixel light-transmitting region in the primary pixel element structure.

8. The display device according to claim 7 , wherein:

aperture ratio of the primary transparent region, the first color barriers, the second color barriers, and the third color barriers in the primary color barrier is slightly larger than the aperture ratio of the primary pixel light-transmitting region, the first sub-pixel elements, the second sub-pixel elements, and the third sub-pixel elements in the primary pixel element structure, respectively.

9. The display device according to claim 1 , wherein the primary pixel element structure includes a total number of two pixel element structures arranged in the second direction.

10. The display device according to claim 1 , wherein the light-emitting region further comprises:

an organic light-emitting diode light-emitting structure comprising a first substrate, and a nontransparent anode, a pixel defining layer, an organic layer, and a cathode sequentially arranged above the first substrate.

11. The display device according to claim 10 , wherein the organic light-emitting diode light-emitting structure is a top-emitting organic light-emitting diode structure.

12. The display device according to claim 11 , wherein the organic light-emitting diode light-emitting structure is either a passive matrix top-emitting organic light-emitting diode structure or an active matrix top-emitting organic light-emitting diode structure.

13. The display device according to claim 1 , wherein:

the first sub-pixel element is any one of a red sub-pixel element, a blue sub-pixel element, and a green sub-pixel element; and

the second sub-pixel element and the third sub-pixel element are each of colors different from the color of the first sub-pixel element.

14. A display device, comprising:

an array structure comprising a plurality of primary pixel element structures arranged in a matrix;

wherein a primary pixel element structure comprises a plurality of pixel element structures arranged in a second direction,

a pixel element structure comprises first, second, and third sub-pixel elements, each comprising a light-emitting region and a light-transmitting region disposed at one side of the light-emitting region and adjacent to the light-emitting region in a first direction, and the first direction being perpendicular to the second direction,

wherein:

the first sub-pixel element is a blue sub-pixel element;

the second sub-pixel element is a green sub-pixel element;

the third sub-pixel element is a red sub-pixel element;

when the display device is turned off, a scene on an opposite side of the display device is observed by an observer on either side of the display device; and

when the display device is turned on, a scene on the opposite side of the display device is observed by the observer on a side where no light is emitted.

15. The display device according to claim 14 , wherein in each primary pixel element structure, the blue sub-pixel element has an aperture ratio larger than the green sub-pixel element.

16. The display device according to claim 14 , wherein in each primary pixel element structure, the blue sub-pixel element has an aperture ratio larger than the red sub-pixel element.