Patent ID: 8581253
Filing Date: 2013-11-12
Classification: G02F

Abstract:
1. A display substrate comprising: a first light blocking pattern formed on a base substrate, configured to block visible light and transmit infrared light; a first switching element comprising a first semiconductor pattern, a first source electrode, a first drain electrode, and a first gate electrode, wherein the first semiconductor pattern is formed on the first light blocking pattern, the first source and drain electrodes are formed on the first semiconductor pattern, and the first gate electrode is formed on the first source and drain electrodes; a second light blocking pattern formed on the base substrate, configured to block the visible light and transmit the infrared light; and a first sensing element configured to detect the infrared light, comprising a second semiconductor pattern, a second source electrode, a second drain electrode, and a second gate electrode, wherein the second semiconductor pattern is formed on the second light blocking pattern, the second source and drain electrodes are formed on the second semiconductor pattern, and the second gate electrode is formed on the second source and drain electrodes.