Patent ID: 11966124
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G

Claim 10:
11. A display panel comprising:
a display region and a photoelectric sensing region, wherein the display region is located outside the photoelectric sensing region, the display region comprises a plurality of pixels arranged in an array, each pixel of the plurality of the pixels comprises a plurality of color sub-pixels; and the photoelectric sensing region comprises a light transmitting region and a frame area that surrounds the light transmitting region, wherein the frame region comprises:
a first region surrounding the light transmitting region;
a second region located on a side of the first region away from the light transmitting region and surrounding the first region; and
a third region located on a side of a second region away from the light transmitting region and located between the second region and the display region to separate the second region from the display region;
a plurality of spacers arranged in an array, wherein the plurality of the spacers is located inside the display region while outside of the light transmitting region;
a plurality of first support pillars located inside the first region, arranged around the light transmitting region, and spaced away from each other;
a plurality of second support pillars located inside the second region, arranged around the second region, and spaced away from each other; and
a plurality of third support pillars located in the third region and arranged in an array,
wherein the display panel further comprises:
a first substrate;
a second substrate opposite to the first substrate;
a black matrix located on a side of the second substrate adjacent to the first substrate, covering the frame area, and defining the plurality of the color sub-pixels in the display region, wherein orthographic projections of the plurality of the spacers, orthographic projections of the plurality of the first support pillars, orthographic projections of the plurality of the second support pillars, and orthographic projections of the plurality of the third support pillars on the first substrate are located within an orthographic projection of the black matrix on the first substrate; and
a protection layer located in the second substrate adjacent to and located on a side of the black matrix adjacent to the first substrate, covering the frame region and the display region, wherein the plurality of the spacers, the plurality of the first support pillars, the plurality of the second support pillars, and the plurality of the third support pillars are located between the first substrate and the protection layer to maintain a distance between the first substrate and the second substrate;
in the first region, the protection layer is directly contacted with the black matrix;
the protection layer has a step configuration in the first region, the step configuration comprises a first portion away from the second region and a second portion adjacent to the second region; and
in a direction vertical to the first substrate, a height of the first portion is less than a height of the second portion, and a height of the first support pillars is greater than a height of the second support pillars.