Patent ID: 11947754
Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. A display device, comprising:
a capacitive touch screen device, comprising:
a plurality of gate lines, a plurality of data lines, and a plurality of common electrode lines, wherein the plurality of gate lines and the plurality of data lines perpendicularly intersect to form a plurality of pixel units arranged in an array; one of the plurality of common electrode lines is arranged in parallel with one of the plurality of gate lines and is arranged between the plurality of pixel units and one of the plurality of common electrode lines, wherein the plurality of pixel units is divided into a plurality of touch detection regions, and an area of each of the plurality of touch detection regions is smaller than an area of a capacitive touch screen of the capacitive touch screen device touched by a finger;
a plurality of touch sensing units, wherein each of the plurality of touch sensing units is connected to one of the plurality of gate lines and one of the plurality of common electrode lines connected to any row of the plurality of pixel units in a corresponding touch detection region; and each of the plurality of touch sensing units is configured to detect a charge in the corresponding touch detection region;
a plurality of read lines arranged in parallel with the plurality of data lines, and each of the plurality of read lines is configured to connect the plurality of touch sensing units located in a same column to convert the charge in each of the plurality of touch detection regions into a current and to output the current; and
a plurality of read units connected to the plurality of read lines; wherein the plurality of read units are configured to convert the current output by the plurality of read lines into an output voltage and read it, and a touch position in the plurality of touch detection regions is determined according to changes in the output voltage.