US Patent Application 18108823. DISPLAY DEVICE simplified abstract
Contents
DISPLAY DEVICE
Organization Name
Inventor(s)
Hee Rim Song of Yongin-si (KR)
Hee Jean Park of Yongin-si (KR)
Cheol Gon Lee of Yongin-si (KR)
Mu Kyung Jeon of Yongin-si (KR)
DISPLAY DEVICE - A simplified explanation of the abstract
- This abstract for appeared for US patent application number 18108823 Titled 'DISPLAY DEVICE'
Simplified Explanation
The abstract describes a display device that consists of display pixels and light sensing pixels. The display pixels have a light emitting part with a light emitting element and a pixel driver that applies a driving current to the light emitting element. The light sensing pixels have a light sensing part with an optical element and a sensing driver that applies a sensing current to a sensing line based on the photocurrent of the optical element.
The sensing driver includes a first sensing transistor that controls the sensing current flowing through the sensing line based on the voltage of a first electrode of the optical element. It also includes a second sensing transistor that initializes the first electrode of the optical element to a first level voltage.
Importantly, the channel layer of the first sensing transistor and the channel layer of the second sensing transistor are made of different materials.
Original Abstract Submitted
A display device includes display pixels each including a light emitting part including a light emitting element and a pixel driver applying a driving current to the light emitting element, and light sensing pixels each including a light sensing part including an optical element and a sensing driver, the sensing driver applying a sensing current to a sensing line according to a photocurrent of the optical element. The sensing driver includes a first sensing transistor controlling the sensing current flowing through the sensing line according to a voltage of a first electrode of the optical element, and a second sensing transistor initializing the first electrode of the optical element to a first level voltage. A channel layer of the first sensing transistor and a channel layer of the second sensing transistor are made of different materials.
