Beyondeyes

Other

Kwangsue Park

Dong Wook Nam

Byung Il Min

Byung Ii Min

A display device for fingerprint detection is disclosed. The display device includes a plurality of gate lines and a plurality of data lines, a first switching transistor, a storage capacitor, a light-receiving element, and a second switching transistor. The plurality of data lines are used for reading a charged voltage across the storage capacitor.

Display device for fingerprint detection

A unit pixel formed on a substrate and configured to convert incident light to an electrical signal to constitute an image sensor provided. A unit pixel includes a source having a source voltage supplied thereto and having a silicide layer for metal contact formed thereabove, a drain spaced apart from the source and having a silicide layer for metal contact formed thereabove, a channel formed between the source and the drain and having a current flowed therethrough, an insulating layer formed above the channel, a light receiving part placed in a light receiving region of the surface of the image sensor and having changes in electrical properties caused by incident light therein; and a floating gate formed above the insulating layer so as to be placed between the source and the drain, configured to be electrically connected with the light receiving part, and configured to control an amount of current flowing through the channel by an electric field generated by the changes in electrical properties.

Unit pixel for image sensor comprising contact pad connected to light receiving portion

A unit pixel formed on a substrate and configured to convert incident light to an electrical signal is provided. The unit pixel includes: a source having a source voltage supplied thereto and having a silicide layer for metal contact formed thereabove; a drain spaced apart from the source and having a silicide layer for metal contact formed thereabove; a channel formed between the source and the drain and having a current flowed therethrough; an insulating layer formed above the channel; and a floating gate having a nonsal structure in which no silicide layer is formed thereabove in order to facilitate an absorption of light, formed above the insulating layer so as to be placed between the source and the drain, and configured to control an amount of current flowing through the channel by an electric field generated by electron-hole pairs generated by the incident light. A body of the unit pixel is floated, and the electric field is configured to act on the channel by electrons aggregated toward the source and holes aggregated toward the drain by the source voltage supplied to the source.

Growing community of inventors

Seoul, South Korea

Kwangsue Park