Display device having a transparent display area for display and light transmitting functions

An OLED array substrate, comprising:

• a display area,
• a non-transparent display area in which first OLED sub-pixels are arranged in a first array;
• a transparent display area in which second OLED sub-pixels are arranged in a second array;
• wherein the first OLED sub-pixels are driven by a part of data signal channels of a display driver integrated chip, the second OLED sub-pixels are driven by a remaining part of the data signal channels of the display driver integrated chip, and data of all the data signal channels correspond to a frame of screen display in the display area;
• and
• when the second OLED sub-pixels are driven, the transparent display area performs a display function;
• when the second OLED sub-pixels are not driven, the transparent display area performs a light transmitting function,
• wherein in a direction perpendicular to a plane where the OLED array substrate is located, each of the first OLED sub-pixels comprises:
• a lower electrode, a first OLED light emitting structure disposed over the lower electrode, and an upper electrode disposed over the first OLED light emitting structure;
• and
• in a direction perpendicular to the plane where the OLED array substrate is located, each of the second OLED sub-pixels comprises:
• a first electrode, a second OLED light emitting structure disposed over the first electrode and extending along the first electrode, and a second electrode disposed over the second OLED light emitting structure,
• wherein the second OLED sub-pixels comprise sub-pixels of different colors, a plurality of adjacent columns of the second OLED sub-pixels of different colors in one row form a second OLED pixel unit;
• a driving mode for the second OLED sub-pixels is passive;
• and
• the first electrode of the second OLED sub-pixel in each column of one row is connected to a drain of a switching transistor, sources of switching transistors of the sub-pixels of a same color in the columns in different second OLED pixel units are connected to a same data signal channel of the display driver integrated chip, and gates of the switching transistors are connected to a same or different switching signals.