CROSS REFERENCE TO RELATED APPLICATION

This application claims the priority of international Application No. PCT/CN2019/116571, filed on 2019 Nov. 8, which claims priority to Chinese Application No. 201910387016.5, filed on 2019 May 10. The entire disclosures of each of the above applications are incorporated herein by reference.

BACKGROUND OF INVENTION

Field of Invention

The present invention relates to the field of electronic display, and in particular, to a combined display panel.

Description of Prior Art

With the continuous development of display technology, users have higher requirements for resolution and service life of display panels. However, due to the process capability, as the resolution increases, aperture ratio and service life of the display panel will inevitably decrease.

Technical Problems

Referring toFIG. 1,FIG. 1schematically shows a pixel of a display panel in the prior art. Because only a single-colored light is allowed to pass at the same time, aperture ratio of the display panel in the prior art is only about 33%, which needs to be improved.

SUMMARY OF INVENTION

The present application provides a combined display panel to increase the aperture ratio of the display panel in the prior art.

In order to solve the above problems, the present application provides a combined display panel comprising:

a first sub-screen comprising a plurality of first pixel units, each of the first pixel units comprising a first sub-pixel and a third sub-pixel;

a second sub-screen comprising a plurality of second pixel units corresponding to the first pixel units, each of the second pixel units comprising a second sub-pixel;

wherein the first sub-screen overlaps with the second sub-screen, each of the second pixel units is located directly above the first pixel unit corresponding thereto, a first pixel unit and a second pixel unit are stacked to form a pixel unit of the combined display panel;

wherein the first sub-screen comprises a first display area and a first non-display area, the first pixel units are disposed on the first display area, the first non-display area is disposed adjacent to the first display area for setting a first control circuit;

wherein the second sub-screen comprises a second display area and a second non-display area, the second pixel units are disposed on the second display area, the second non-display area is disposed adjacent to the second display area for setting a second control circuit.

According to one aspect of the application, wherein a shape and an area of each second pixel units are same as a shape and an area of each first pixel units.

According to one aspect of the application, wherein an area of the first sub-pixel is equal to an area of the third sub-pixel.

According to one aspect of the application, wherein the first sub-pixel is a red pixel, the second sub-pixel is a blue pixel, and the third sub-pixel is a green pixel.

According to one aspect of the application, wherein the first sub-screen is a top illumination display and the second sub-screen is a two-way illumination display.

According to one aspect of the application, wherein, an anode of the first sub-screen is a reflective electrode, and a cathode of the first sub-screen is a transparent electrode;

wherein an anode of the second sub-screen is a transparent electrode, and a cathode of the second sub-screen is a transparent electrode.

According to one aspect of the application, wherein the first sub-screen and the second sub-screen are rectangular;

wherein the first non-display area is disposed along a side of the first sub-screen;

wherein the second non-display area is disposed corresponding to the first non-display area along a side of the second sub-screen, the second non-display area has a same shape and area as the first non-display area.

The present invention further provides a combined display panel comprising:

a first sub-screen comprising a plurality of first pixel units, each of the first pixel units comprising a first sub-pixel and a third sub-pixel;

a second sub-screen comprising a plurality of second pixel units corresponding to the first pixel units, each of the second pixel units comprising a second sub-pixel;

wherein the first sub-screen overlaps with the second sub-screen, each of the second pixel units is located directly above the first pixel unit corresponding thereto, a first pixel unit and a second pixel unit are stacked to form a pixel unit of the combined display panel.

According to one aspect of the application, wherein a shape and an area of each second pixel units are same as a shape and an area of each first pixel units.

According to one aspect of the application, wherein an area of the first sub-pixel is equal to an area of the third sub-pixel.

According to one aspect of the application, wherein the first sub-pixel is a red pixel, the second sub-pixel is a blue pixel, and the third sub-pixel is a green pixel.

According to one aspect of the application, wherein the first sub-screen is a top illumination display and the second sub-screen is a two-way illumination display.

According to one aspect of the application, wherein an anode of the first sub-screen is a reflective electrode, and a cathode of the first sub-screen is a transparent electrode;

wherein an anode of the second sub-screen is a transparent electrode, and a cathode of the second sub-screen is a transparent electrode.

According to one aspect of the application, wherein the first sub-screen comprises a first display area and a first non-display area, the first pixel units are disposed on the first display area, the first non-display area is disposed adjacent to the first display area for setting a first control circuit;

wherein the second sub-screen comprises a second display area and a second non-display area, the second pixel units are disposed on the second display area, the second non-display area is disposed adjacent to the second display area for setting a second control circuit.

According to one aspect of the application, wherein the first sub-screen and the second sub-screen are rectangular;

wherein the first non-display area is disposed along a side of the first sub-screen;

wherein the second non-display area is disposed corresponding to the first non-display area along a side of the second sub-screen, the second non-display area has a same shape and area as the first non-display area.

According to one aspect of the application, wherein a distribution pattern of the first pixel units on the first sub-screen is axisymmetric with a distribution pattern of the second pixel units on the second sub-screen, when the first sub-screen and second sub-screen overlapping, the second sub-screen flips over the first sub-screen along a symmetry axis.

According to one aspect of the application, wherein a distribution pattern of the first pixel units on the first sub-screen is consistent with a distribution pattern of the second pixel units on the second sub-screen, when the first sub-screen and second sub-screen overlapping, the second sub-screen horizontally covers the first sub-screen.

According to one aspect of the application, wherein control signals of the first sub-screen and the second sub-screen are same, and display information received by a first pixel unit and a corresponding second pixel unit is same.

According to one aspect of the application, wherein the combined display panel further comprises a plurality of support columns between the first sub-screen and the second sub-screen.

According to one aspect of the application, wherein a material forming the support columns is a white material or a transparent material, and a surface of the support columns has a diffuse reflection structure.

Beneficial Effects

The combined display panel provided by the present application includes a corresponding first sub-screen and a second sub-screen. The first sub-screen includes a plurality of first pixel units, and the second sub-screen includes a plurality of second pixel units disposed corresponding to the first pixel units. Each of the first pixel units includes a first sub-pixel and a third sub-pixel, and each of the second pixel units includes a second sub-pixel. Each of the second pixel units is located directly above the first pixel unit corresponding thereto. With this arrangement, when the first sub-pixel or the third sub-pixel emits light, the aperture ratio of the pixel unit of the combined display panel approaches 50%. When the second sub-pixel emits light, the aperture ratio of the pixel unit of the combined display panel approaches 100%. Therefore, the present application greatly improves the aperture ratio of the display panel and optimizes the display effect of the display panel.

