Brooks Kushman P.C.
Touch substrate, driving method, manufacturing method, touch assembly and touch display device
A touch substrate includes an optical sensor structure, a parallel light detection structure and a lens positioning structure laminated one on another. The optical sensor structure is configured to determine plane position coordinates of the floating touch point in a direction parallel to the touch substrate based on a light flux received by each opening sensor unit. The lens positioning structure is configured to adjust a focal length of a target lens unit having the plane position coordinates in a plurality of lens units, so as to enable the light flux received by the optical sensor unit corresponding to the target lens unit to reach a threshold, thereby to determine a target focal length acquired when the light flux received by the optical sensor unit reaches the threshold as a space position coordinate of the floating touch point in a normal direction of the touch substrate.
BOE TECHNOLOGY GROUP CO., LTD. BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
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Shumeng Minghui Xiaohu Inho Xiaopeng
Sun Zhang Li Park Cui