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

Claim 18:
19. The display device in claim 11, wherein when the capacitive touch screen is touched, the charge in a corresponding touch detection region detected through the plurality of touch sensing units is:

Q2=(Ci+Cp)*Vcom

wherein Q2 is the charge when the plurality of touch detection regions are touched, Ci is a capacitance value of a reference capacitor, Cp is a capacitance value of a sensing capacitor, Vcom is a potential of a common electrode of an array substrate or a potential of the plurality of common electrode lines; and
the output voltage read through the plurality of reading unit is:

Vout2=(Ci+Cp)*Vcom/Cf 

wherein Vout2 is the output voltage of the plurality of read units when the plurality of touch detection regions are touched, and Cf is a feedback capacitance of an integrator.