Back to results
US 8,525,775 B2Granted
Liquid crystal display with light shutter and method for driving the same
AssigneeLG Display Co., Ltd.
InventorYong Sung Ham
Life of this patent
Estimating the term…
Abstract
The present invention discloses a liquid crystal display device with a light shutter to eliminate a motion-blurring phenomenon generated upon displaying a moving picture, thereby improving a display quality. In the liquid crystal display device, a light shutter is provided on a liquid crystal display panel for displaying an image to transmit or shut off the light from the liquid crystal display panel.
Claims14
A liquid crystal display device, comprising:
- a liquid crystal display panel having pixels, each pixel displaying an image data value;
- and
- a light shutter on the liquid crystal display panel operable to transmit and shut off all light emitted from the liquid crystal display panel during a field period,
- wherein the field period is initiated upon a first transition of a gate signal to apply the image data values to the pixels and is terminated upon a next transition of the gate signal to apply image data values to the pixels, wherein the field period corresponds to only one image data value at each pixel,
- and wherein the light shutter is switched to transmit all light emitted from the liquid crystal display panel at a first transition of the gate signal and the light shutter is switched to shut off the light emitted from the liquid crystal display panel after the first gate signal and before the next transition of the gate signal within the field period.
2 more elements
An apparatus for driving a liquid crystal display, comprising:
- a liquid crystal display panel having a pixel for displaying an image;
- a light shutter on the liquid crystal display panel operable to transmit and shut off all light emitted from the liquid crystal display panel during every field period;
- a controller generating a shutter control signal to open or close the light shutter;
- and
- a light shutter driver responding to the shutter control signal to drive the light shutter,
- wherein every field period is initiated upon a first transition of a gate signal from a low voltage signal to a high voltage signal to apply image data to the pixels and is terminated upon a next transition of the gate signal from a low voltage signal to a high voltage signal to apply image data to the pixel, and wherein every field period corresponds to only one image data value,
- and wherein the light shutter is switched to transmit all light emitted from the liquid crystal display panel at a first transition of the gate signal and the light shutter is switched to shut off the light emitted from the liquid crystal display panel after the first gate signal and before the next transition of the gate signal within the field period.
4 more elements
A method of driving a liquid crystal display having a light shutter on the liquid crystal display panel, comprising:
- supplying video data to a liquid crystal display panel emitting light and having a pixel for displaying an image, according to a gate signal;
- and
- opening the light shutter at a first transition of the gate signal from a low voltage signal to a high voltage signal such that the transmittance of the light shutter to all light emitted from the liquid crystal display is substantially zero before opening;
- and
- pausing the displaying of the image by closing the light shutter after the first transition of the gate signal and before a next transition of the gate signal from a low voltage signal to a high voltage signal per every field period for each pixel such that the transmittance of the light shutter to all light emitted from the liquid crystal display is substantially zero after closing.
2 more elements
Dependencies are inferred from the claim text.