Display device and driving method thereof
The display device addresses the challenge of representing brightness differences by applying global and local contrast curves to enhance image clarity and reduce noise, resulting in improved image quality and user immersion.
KR103000148B1Active Publication Date: 2026-08-05LG ELECTRONICS INC
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Patent Information
- Application Number
- KR1020230055855
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2023-04-28
- Publication Date
- 2026-08-05
- Estimated Expiration
- 2043-04-28
AI Technical Summary
Technical Problem
Existing display devices struggle to accurately represent images with significant brightness differences between dark and bright areas, leading to skewed contrast balance and digital noise during tone mapping of HDR images to SDR or LDR formats.
Method used
A display device that applies a global contrast curve to an entire image area and generates local contrast curves based on local information, allowing adjustment of noise processing and sharpness intensity for each local area, thereby suppressing digital noise and enhancing image clarity.
Benefits of technology
This approach provides clean and clear image quality by suppressing digital noise and improving viewing immersion through individual control of noise and clarity based on local image characteristics.
✦ Generated by Eureka AI based on patent content.
Abstract
A display device according to an embodiment of the present disclosure applies a global contrast curve that adjusts the brightness of an entire area of an input image, generates a plurality of local contrast curves corresponding to each of a plurality of local areas based on local information of each of a plurality of local areas included in the entire area, applies each local contrast curve to each local area, and can adjust one or more of the noise processing intensity or sharpness intensity of a local output image to which the local contrast curve is applied based on each local information.
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