Method and apparatus for measuring response time of liquid crystal display device
AssigneeLG. Philips LCD Co., Ltd.
InventorYong Sung Ham
Life of this patent
Estimating the term…
Abstract
A method of measuring a liquid crystal response speed includes steps of generating a sample pulse having a target voltage level and a variable voltage level that varies according to a response characteristic of a display panel, applying the sample pulse to the display panel, detecting the response characteristic of the display panel by the sample pulse, adjusting the variable voltage level until a desired level of the response characteristic is obtained, and setting the variable voltage level to a modulated data when the desired level of the response characteristic is obtained.
Claims16
A method of measuring a liquid crystal response speed, comprising the steps of:
- generating a sample pulse having a target voltage level and a variable voltage level that varies according to a response characteristic of a display panel;
- applying the sample pulse to the display panel;
- detecting the response characteristic of the display panel by the sample pulse;
- adjusting the variable voltage level until a desired level of the response characteristic is obtained;
- and
- setting the variable voltage level to a modulated data when the desired level of the response characteristic is obtained.
A liquid crystal response speed measuring apparatus, comprising:
- a pattern generator for generating a sample pulse having a target voltage level and a variable voltage level;
- a display panel for receiving the sample pulse to display an image;
- a response characteristic detector for detecting a varying response characteristic of the display panel by the sample pulse;
- and
- a level controller for adjusting the variable voltage level until the response characteristic arrives at a desired level and for setting the variable voltage level to a modulating data when the desired level of the response characteristic arrives is obtained.
A system for measuring liquid crystal response speed, comprising:
- a generator system for generating a sample pulse having a first voltage level and a variable second voltage level;
- a display system for receiving the sample pulse to display an image;
- a response detector system for detecting a varying response characteristic of the display system by the sample pulse;
- and
- a controller system for adjusting and setting the variable second voltage level.
Dependencies are inferred from the claim text.