Flat Display Driving Method for Down-Scaled Image Distortion
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Solution Overview
Problem
Conventional flat displays experience distortion when down-scaling image frames to match lower resolutions, such as from 640×480 to 320×240, due to the selection of even or odd rows/columns of pixel data, leading to noticeable image degradation.
Innovation Solution
A driving method for flat displays that utilizes fewer pixels to display more pixel data by rearranging and distributing pixel information across different time divisions, allowing N pixels to show M pixel data in multiple time slots, thereby reducing distortion by leveraging human persistence of vision to maintain image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional down-scaling method selecting even or odd rows/columns is used, then the image frame resolution is reduced to match display, but obvious distortion occurs in the down-scaled image
Solution Approach 1:
The patent applies temporal dynamics by displaying different pixel data to the same physical pixels at different time periods. Instead of static spatial down-scaling, the system dynamically assigns pixel data across time divisions, where N pixels display M pixel data (M>N) by switching between different time slots, thereby reducing spatial distortion while maintaining temporal image quality.
Solution Approach 2:
The patent transforms the problem from a 2D spatial down-scaling challenge to a 3D spatiotemporal solution. By introducing the time dimension, the system displays multiple rows of pixel data across different time periods using the same physical pixel rows, effectively converting spatial resolution constraints into temporal display sequences that reduce visible distortion.
2Manufacturing precision
If N pixels display M pixel data in different time divisions, then distortion is reduced and image quality improves, but the driving method complexity increases
Solution Approach 1:
The patent implements periodic action by dividing the display into multiple time divisions or time slots, where each time division displays specific pixel data to N pixels. This periodic temporal assignment allows M pixel data to be displayed using N physical pixels by cycling through different time slots, reducing distortion through structured temporal sequencing while maintaining manageable system complexity.
Data Source
AI summary
A method for driving a flat display is disclosed. Each row of the flat display includes N pixels, that is used to display M pixel data in a row of a image frame, wherein M and N are positive integers and M is larger than N. The method includes, in a first time division, the N pixels display N pixel data out of the M pixel data, and in a second time division, the N pixels display the remaining M-N pixel data.