Invention Grant
- Patent Title: Pixel units comprising a compensation circuit and electroluminescent display comprising the pixel units
-
Application No.: US15440543Application Date: 2017-02-23
-
Publication No.: US10210790B2Publication Date: 2019-02-19
- Inventor: Shih-Song Cheng
- Applicant: INT TECH CO., LTD.
- Applicant Address: TW Taipei
- Assignee: INT TECH CO., LTD.
- Current Assignee: INT TECH CO., LTD.
- Current Assignee Address: TW Taipei
- Agency: Marquez IP Law Office, PLLC
- Agent Juan Carlos A. Marquez
- Main IPC: G06F3/14
- IPC: G06F3/14 ; G09G3/20 ; G09G3/30 ; G09G3/36 ; H01L27/32 ; H01L29/78 ; H01L51/50 ; G09G3/3208 ; H01L23/528 ; H01L29/417

Abstract:
An electroluminescent display includes an array of pixels, each including a capacitor, an electroluminescent (EL) device, a first group of transistors and a second group of transistors. The first group of transistors, coupled between a first terminal of the capacitor and a data input, provides a compensation voltage according to data received at the data input. The compensation voltage is composed of a threshold voltage of each of the first group of transistors. The second group of transistors passes a current through the EL device that has a magnitude independent of a threshold voltage of the second group of transistors. In a first phase, a voltage level at the first terminal of the capacitor is reset. In a second phase, data is stored in the capacitor and received via the first group of transistors, and the compensation voltage is generated. In a third phase, the current is passed.
Public/Granted literature
- US20180137806A1 PIXEL UNITS COMPRISING A COMPENSATION CIRCUIT AND ELECTROLUMINESCENT DISPLAY COMPRISING THE PIXEL UNITS Public/Granted day:2018-05-17
Information query