Ladas & Parry LLP
Capacitive in-cell touch screen and display device
In a capacitive in-cell touch screen and a display device, the common electrode layer connected in the entire surface in the array substrate is divided to form touch driving electrodes and common electrodes which are insulated from each other and alternatively disposed, touch sensing electrodes are disposed on the upper substrate and touch driving electrodes are driven in a time-division manner to realize touch function and display function. Disposing projections of touch sensing electrodes on the array substrate in areas where common electrodes are may reduce right opposite areas between touch sensing electrodes and touch driving electrodes, thereby reduce opposite capacitance; providing sides of touch driving electrodes and adjacent sides of common electrodes as broken lines and providing consistent shapes for touch sensing electrodes and common electrodes may increase opposite areas between touch driving electrodes and touch sensing electrodes, thereby increasing projection capacitance per unit area. By increasing the proportion of projection capacitance over opposite capacitance, it is possible to increase proportion of variation amount of mutual capacitance caused by finger touching, and hence improving the touch accuracy.
BOE TECHNOLOGY GROUP CO., LTD. BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
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additional inventional inventional inventional inventional
Hongjuan Shengji Chunlei Haisheng Xue Yingming Weijie Lei Tao Xiaoliang
Liu Yang Wang Wang Dong Liu Zhao Wang Ren Ding