Patent · US Expired

Light emitting device

US6690034B2 · kind B2 · utility

40Cited by
17References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 27, 2001
Grant dateFeb 10, 2004
Priority date
Expiry dateJul 27, 2021

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10K59/1213

Abstract

There is provided a light emitting device including a TFT having a high driving capacity (on current) and high reliability in a driver circuit and a TFT in which an off current is reduced in a pixel portion. In manufacturing the TFTs, after the TFT having an LDD region is formed, a part of a gate electrode is etched to form the TFT having GOLD region. Thus, the TFTs having required functions can be easily formed in the driver circuit and the pixel portion, respectively, on the same substrate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.