Display Device Sub-Frame Signal Conversion for Higher Resolution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electronic devices with lower bit drive modules struggle to achieve high-resolution displays due to limitations in brightness generation, affecting display quality.
Innovation Solution
A signal-processing method that converts a frame signal into multiple sub-frame signals with different sub-frame duties, allowing a display device to represent more detailed gray levels, thereby improving display quality even with lower bit drive modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a drive module with lower bits is used, then device complexity is reduced, but display resolution deteriorates
Solution Approach 1:
The patent divides a single frame signal into multiple sub-frame signals (e.g., 4 sub-frames for 6-bit drive to achieve 8-bit display). Each sub-frame carries a portion of the grayscale information, and by sequentially displaying these sub-frames within one frame period, the system achieves higher effective resolution than the drive module's native bit capacity would allow.
2Ease of manufacture
If a drive module with lower bits is used, then ease of manufacture is improved, but display quality deteriorates
Solution Approach 1:
The patent employs periodic modulation by dividing the display frame into multiple sub-frames that are displayed in sequence. This periodic structure allows the lower-bit drive module to effectively communicate higher-bit information through temporal multiplexing, maintaining display quality while using simpler, easier-to-manufacture drive hardware.
Data Source
AI summary
A signal-processing method for a display device, including: receiving a frame signal; and converting the frame signal into a plurality of sub-frame signals in a number of N corresponding to N different sub-frame duties, wherein N is a positive integer equal to or greater than 2. Therefore, the display device using a drive module with lower bits may have a resolution with higher bits to improve the display quality of the electronic device.