VGS Compensation Source Follower for the LTPS TFT LCD Data Driver Output Buffer

Abstract

Low Temperature Poly-Silicon (LTPS) TFT technology for LCD has been developed for a long time. Because of its higher mobility, scan driver and data driver could be fabricated on the glass panel to form a fully integrated display panel and reduce its cost. In this paper new circuits for buffering the DAC in the data driver will be proposed. These circuits have the advantages of lower power and smaller area than the conventional ones. They all extend their full swing from 2 to 10 volts in 12 microseconds and have 6-bit resolution at least. Furthermore, the circuits have no feedback system as the operational amplifier (OP) does, which is hard to design in the current LTPS technology.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2000
Accession Number
ADP011304

Entities

People

  • Bowen Wang
  • Jun-ren Shih
  • Shang-li Chen

Tags

Communities of Interest

  • Advanced Electronics
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Amplifiers
  • Capacitors
  • Closed Loop Systems
  • Compensation
  • Crystals
  • Digital Data
  • Display Systems
  • Electronics
  • Liquid Crystal Displays
  • Liquid Crystals
  • Low Temperature
  • Mobility
  • Operational Amplifiers
  • Semiconductor Devices
  • Solid State Electronics
  • Thin Film Transistors
  • Transistors

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Integrated Circuit Design and Technology.