Defective pixel management for flat panel displays
AssigneeNVIDIA Corporation
InventorLi Liu
Life of this patent
Estimating the term…
Abstract
Systems and methods for identifying defective pixels and adjusting an input to control display of the defective pixels may improve the quality of the image viewed on a flat panel display including one or more defective pixels. The screen position of each defective pixel is identified and stored. Adjustment information is also stored for each defective pixel. The adjustment information is used to modify a stored color value for each defective pixel or to disable one or more color components of each defective pixel prior to displaying an image on a flat panel display device including the defective pixels.
Claims18
A computer-implemented method of controlling display of a defective pixel of a flat panel display device, comprising:
- reading pixel characterization information for the defective pixel of the flat panel display device from a memory;
- determining adjustment information based on the pixel characterization information for use in controlling display of the defective pixel;
- programming a graphics processor to produce image data for display on the flat panel display device, wherein the image data includes a color for the defective pixel, modify one or more color components of the defective pixel to generate modified image data based on the adjustment information, and write the modified image data to the frame buffer;
- and
- outputting the modified image data from the frame buffer to the flat panel display device;
- wherein the determining of the adjustment comprises determining an operating mode that specified one of a static mode and an adaptive mode, and a defective pixel manager application programs the graphics processor to apply a predetermined adjustment to the defective pixel when the operating mode is the static mode and the defective pixel manager application programs the graphics processor to modify a color component of the defective pixel based on a color component stored in the frame buffer and the pixel characterization information when the operating mode is the adaptive mode.
A non-transitory computer-readable medium storing instructions that, when executed by a programmable graphics processor, cause a computing system to control the display of a defective pixel of a flat panel display device, by performing the steps of:
- reading pixel characterization information for a defective pixel of the flat panel display device from a memory;
- determining adjustment information for use in controlling display of the defective pixel based on the pixel characterization information;
- programming a graphics processor to produce image data for display on the flat panel display device, wherein the image data includes a color for the defective pixel, modify one or more color components of the defective pixel to generate modified image data based on the adjustment information, and write the modified image data to the frame buffer;
- and
- outputting the modified image data from the frame buffer to the flat panel display device;
- wherein the determining of the adjustment comprises determining an operating mode that specified one of a static mode and an adaptive mode, and a defective pixel manager application programs the graphics processor to apply a predetermined adjustment to the defective pixel when the operating mode is the static mode and the defective pixel manager application programs the graphics processor to modify a color component of the defective pixel based on a color component stored in the frame buffer and the pixel characterization information when the operating mode is the adaptive mode.
A system configured to control the display of a defective pixel of a flat panel display device, the system comprising:
- the flat panel display device;
- a memory configured to store a defective pixel manager;
- a processor coupled to the memory and configured to execute the defective pixel manager to perform operations of reading pixel characterization information for a defective pixel of the flat panel display device from a memory, determining adjustment information for use in controlling display of the defective pixel based on the pixel characterization information, and programming a graphics processor to modify one or more color components of the defective pixel to generate modified image data based on the adjustment information;
- and
- the graphics processor that is configured to:
- produce image data for display on the flat panel display device, wherein the image data includes a color for the defective pixel and write the modified image data to the frame buffer;
- wherein the determining of the adjustment comprises determining an operating mode that specified one of a static mode and an adaptive mode, and a defective pixel manager application programs the graphics processor to apply a predetermined adjustment to the defective pixel when the operating mode is the static mode and the defective pixel manager application programs the graphics processor to modify a color component of the defective pixel based on a color component stored in the frame buffer and the pixel characterization information when the operating mode is the adaptive mode.
Dependencies are inferred from the claim text.