Resources Contact Us Home
Display driver converting ki bits gray-scale data to converted gray-scale data of J bits, electro-optical device and gamma correction method

Image Number 11 for United States Patent #7580021.

A data driver includes gamma correction circuits for first to p-th color components for first to p-th (p is an integer equal to or more than two) color components constituting one pixel, a gamma correction circuit for an i-th (1.ltoreq.i.ltoreq.p, i is an integer) color component converting ki-bit (k1 to kp are integers) gray-scale data to converted gray-scale data of j (j>ki, j is an integer equal to or more than two) bits; a voltage selection circuit which outputs a data voltage corresponding to the converted gray-scale data of each color component among reference voltages of 2.sup.j types; and a driving circuit which drives the data lines based on a data voltage of each color component. The gamma correction circuit for an i-th color component generates the converted gray-scale data of j bits so that one of the reference voltages of 2.sup.j types to which ki bit gray-scale data becomes allocated is the data voltage.

  Recently Added Patents
Acoustic echo cancellation
Radio link monitoring (RLM) and reference signal received power (RSRP) measurement for heterogeneous networks
Movable assemblies for an image reader unit and a cover unit in an image formation apparatus
Method for transmitting an electronic short message to multiple receivers
Semiconductor device having trapezoidal shaped trenches
Gas flow indicator
Wafer-level chip scale package
  Randomly Featured Patents
Desinewing belt
Apparatus and method for accurate detection of locomotive fuel injection pump solenoid closure
Process for the preparation of alkylene glycols
Apparatus and method for lifting tilt-up wall constructions
Optical shutter for improved photovoltaic array thermal performance
Aberration measuring apparatus for charged particle beam optical system, charged particle beam lithography machine having the aberration measuring apparatus, and device fabrication method usin
Use of sclareolide to debitter a coffee beverage
Therapeutic agents of colivelin for neurodegenerative diseases
Rolled product dispenser tool adaptor