Unlock instant, AI-driven research and patent intelligence for your innovation.

Field sequential liquid crystal display

A liquid crystal display, field sequential technology, used in static indicators, instruments, door/window accessories, etc., to solve problems such as grayscale deterioration

Inactive Publication Date: 2006-08-23
SAMSUNG MOBILE DISPLAY CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the data signal is not applied to the liquid crystal for a long enough time, the gradation indicates degradation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Field sequential liquid crystal display
  • Field sequential liquid crystal display
  • Field sequential liquid crystal display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] figure 2 is a timing diagram illustrating a method of driving a field sequential LCD according to an embodiment of the present invention. One frame, which is defined as a unit of time for displaying an image, includes a red field, a green field, and a blue field. In addition, each field includes a reset period and a data programming period.

[0019] During the red field, during the reset period, a reset signal with a voltage level of ΔV1 is applied. The reset signal shown has a square wave. The reset signal may include two or more square waves having a voltage level of ΔV1. When the reset signal includes a square wave, the period corresponding to the reset signal having a high voltage level may be equal to the entire reset period or a part of the reset period.

[0020] According to an embodiment of the present invention, the voltage level ΔV1 of the reset signal is higher than the voltage level ΔV2 of the data signal so that the liquid crystal is sufficiently initi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A field sequential LCD capable of applying a reset signal having a higher voltage level than a data signal to a liquid crystal so as to represent a predetermined gradation is provided. The field sequential LCD includes an LCD panel having a plurality of pixels for displaying an image, a gate driver supplying a scan signal to the LCD panel through a scan line, a source driver generating a data signal, and a selection circuit coupled between the source driver and the LCD panel. The selection circuit receives the data signal and a reset signal and, in response to a selection signal, supplies the reset signal to the data line during a reset period and supplies the data signal having a lower voltage level than the reset signal to the data line during a data programming period.

Description

technical field [0001] The present invention relates to a field sequential liquid crystal display (LCD), and more particularly to a field sequential LCD capable of selectively supplying reset signals and data signals to pixels. Background technique [0002] In a field sequential LCD, one frame, which is defined as a time unit for displaying an image, is divided into three fields to drive liquid crystals. For example, a frame is divided into a red field, a green field and a blue field. Illuminated by red light emitted from a turned-on red light during a red field, by green light emitted from a turned-on green light during a green field, and by blue light emitted from a turned-on blue light during a blue field. Bright liquid crystal. [0003] Field sequential LCDs should have a faster response time to data signals than general thin film transistor (TFT) LCDs. In addition, before changing the orientation of the liquid crystal molecules in response to the data signal applied ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1362G02F1/133G09G3/36
CPCG09G2310/0235G09G3/3648G09G3/3688G09G2310/0248B61D19/005B60J5/062E05D15/0643B60Y2200/30E05Y2201/688E05Y2900/51
Inventor 奥野武志
Owner SAMSUNG MOBILE DISPLAY CO LTD