Display device, method for fabricating the same, and method for collecting information by using the same

A method for fabricating a display device, comprising:

• forming a display panel having a plurality of sub-pixels, and providing a light conversion material on a surface at a light emitting side of a light emitting layer of each of part of the sub-pixels so as to form an information collection sub-pixel;
• and
• providing an information receiving device on at least one side of the display panel in a non-display area of the display panel,
• wherein a line between and connecting the information receiving device and the information collection sub-pixel, a line between and connecting a light spot generated when the infrared light emitted by the information collection sub-pixel is irradiated and the information collection sub-pixel, and a line connecting the light spot and the information receiving device substantially form a right triangle.

A method for collecting information using a display device, comprising:

• providing the display device, the display device comprising:
• a display panel having a plurality of sub-pixels, at least a portion of the sub-pixels being information collection sub-pixels each provided with a light conversion material, the light conversion material being configured to absorb light emitted by the information collection sub-pixels and emit infrared light to an external object;
• and
• an information receiving device disposed on at least one side of a display area of the display panel, the information receiving device being configured to receive an infrared light signal reflected by the external object, and to acquire depth information of the external object according to the infrared light signal;
• controlling a bright and dark state of each of the information collection sub-pixels according to a set of codes, a plurality of codes in the set of codes being in one-to-one correspondence with the bright and dark states of the information collection sub-pixels, and there being a difference between any two of the codes;
• receiving a set of infrared light signals having corresponding codes by an information receiver;
• and
• determining depth information of the external objection using a structured light triangulation method based on the infrared light signals.