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US 11,776,456 B2Granted
Display device
AssigneeLG Electronics Inc.
InventorsSungdae Ahn, Donghun Park
Life of this patent
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Abstract
Disclosed is a display device including an external device interface configured to receive image data of an external device, a display configured to output the image data, and a controller configured to recognize a type of the external device using reference information of the external device, to correct image quality of the image data using distance information corresponding to the type of the external device, and to output the corrected image data.
Claims10
A display device comprising:
- an external device interface configured to receive image data from an external device;
- a display configured to display the image data;
- and
- a controller configured to:
- recognize a type of the external device based on reference information received from the external device;
- correct image quality of the displayed image data based on the type of the external device;
- and
- cause the display to display the corrected image data,
- wherein based on the external device being a PC, the image quality of the displayed image data is corrected to generate PC image data by applying a weight to a high frequency component of the displayed image data,
- wherein the PC image data is generated using a PC lookup table having a gain that is increased as a frequency of the displayed image data is increased,
- wherein the PC image data includes an increased sharpness of a detail component of the displayed image data, and
- wherein the controller generates the PC image data by correcting a zone plate pattern composed of circles corresponding to intermediate frequency component and circles corresponding to high frequency component, according to the PC lookup table, and aliasing in a high frequency region that is an outline portion of the pattern occurs more than aliasing in an intermediate frequency region that is a central portion of the pattern in the zone plate pattern according to the generated PC image data.
9 more elements
An operating method of a display device displaying image data received from an external device, the method comprising:
- receiving reference information from the external device;
- recognizing a type of the external device based on reference information of the external device;
- correcting image quality of displayed image data based on viewing distance information corresponding to the type of the external device;
- and
- outputting the corrected image data,
- wherein based on the external device being a PC, the image quality of the displayed image data is corrected to generate PC image data by applying a weight to a high frequency component of the displayed image data,
- wherein the PC image data is generated using a PC lookup table having a gain that is increased as a frequency of the displayed image data is increased, and
- wherein the PC image data includes an increased sharpness of a detail component of the displayed image data,
- wherein the PC image data is generated by correcting a zone plate pattern composed of circles corresponding to intermediate frequency component and circles corresponding to high frequency component, according to the PC lookup table, and aliasing in a high frequency region that is an outline portion of the pattern occurs more than aliasing in an intermediate frequency region that is a central portion of the pattern in the zone plate pattern according to the generated PC image data.
6 more elements
Dependencies are inferred from the claim text.