Display Device Timing Controller Depth Map Luminance
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Solution Overview
Problem
Current display devices for stereoscopic images consume significant power due to the need to maintain high luminance levels for both left and right eye images, which are not optimized based on depth map information.
Innovation Solution
A display device with a timing controller that converts image data into 3D data using depth map information to adjust luminance levels, employing a second image data converter that uses a look-up table to determine luminance reduction coefficients and generate output image data, and a local dimming controller to adjust backlight based on depth map information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If high luminance levels are maintained for both left and right eye images, then the quality of stereoscopic image display is improved, but power consumption increases
Solution Approach 1:
The patent applies local quality by adjusting luminance levels differently for different depth regions. Objects at different depths (represented by disparity values) are assigned different luminance reduction coefficients, so that nearby objects maintain higher luminance while distant objects use lower luminance, thereby reducing overall power consumption while preserving depth perception quality
Solution Approach 2:
The patent changes the luminance parameter dynamically based on disparity information. By calculating luminance reduction coefficients from depth map data and applying them through lookup tables, the system adjusts luminance levels according to object depth, achieving both power savings and maintained image quality
2Use of energy by moving object
If luminance is adjusted based on depth map information, then power consumption is reduced, but the sense of presence in stereoscopic images may be compromised
Solution Approach 1:
The system uses depth map information as feedback to control luminance adjustment. By continuously analyzing disparity data and adjusting luminance reduction coefficients accordingly, the system maintains the sense of presence while optimizing power consumption through depth-based luminance modulation
Solution Approach 2:
The luminance adjustment is dynamic rather than static. The system calculates luminance reduction coefficients based on actual disparity values in the depth map, allowing real-time adaptation of luminance levels to match the depth structure of the displayed content, thereby preserving the sense of presence
Data Source
AI summary
A display device comprises a display panel including a plurality of pixels; and a timing controller performing an operation for displaying an image on the display panel, wherein the timing controller includes a second image data converter generating output image data by converting luminance of an object depending on a disparity of the object included in a left eye image and a right eye image for reducing power consumption of a display device by using depth map information of image data is proposed.