Light sensing element, array substrate having the same and...

Details Light sensing element, array substrate having the same and... Light sensing element, array substrate having the same and...

2011-08-23

2011-08-23

Thomas, Tom (Department: 2893)

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Having insulated electrode

C257SE31053, C348S294000, C345S092000, C345S104000

Reexamination Certificate

active

08004025

ABSTRACT:
In a light sensing element having simplified structure, an array substrate having the light sensing element and an LCD apparatus having the light sensing element, the light sensing element includes a first electrode, a control electrode and a second electrode. An alternating bias voltage is applied to the first electrode. An off voltage is applied to the control electrode. The second electrode outputs a light-induced leakage current based on an externally provided light and the bias voltage. Therefore, the array substrate includes one light sensing switching element corresponding to one pixel so that structure of the array substrate is simplified and opening ratio is increased.

REFERENCES:
patent: 6995743 (2006-02-01), Boer et al.
patent: 2003/0156087 (2003-08-01), Boer et al.

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