Mixed-Resolution Display Pixel Circuits for Flicker Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display apparatuses with multiple display areas of varying resolutions experience flickering due to differences in initializing voltages and currents, leading to visual discomfort.
Innovation Solution
Implementing pixel circuits with different initializing transistors and driving transistors for each display area, synchronized with specific scan signals to control currents and voltages, ensuring balanced initializing voltages and currents across areas with varying resolutions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If different initializing voltages are applied to display areas with different resolutions, then display quality is improved, but visual discomfort due to flickering occurs
Solution Approach 1:
The patent applies different initializing voltage levels to different display areas based on their specific resolution requirements. High-resolution areas receive one initializing voltage level while low-resolution areas receive a different level, optimizing display quality for each region's characteristics rather than using a uniform approach across the entire display.
Solution Approach 2:
The patent changes the initializing voltage parameter according to the resolution characteristics of different display areas. By adjusting the voltage level parameter to match the resolution requirements of each area, the system achieves optimal display performance while preventing flickering that would occur with uniform voltage application.
2Object-affected harmful factors
If multiple pixel circuits with different initializing transistors are implemented, then flickering is prevented, but device complexity increases
Solution Approach 1:
The patent segments the display into multiple display areas with different resolution characteristics, and implements separate pixel circuits for each area. Each pixel circuit is customized with appropriate initializing transistors and voltage levels matched to its specific display area's resolution requirements, preventing flickering through localized optimization.
Solution Approach 2:
The patent introduces dynamic control of initializing voltages through scan signals that selectively activate different initializing transistors based on the current scan line's position. This dynamic approach allows the system to adapt the initializing voltage level in real-time according to which display area is being scanned, preventing flickering without requiring all circuits to operate at maximum complexity simultaneously.
Data Source
AI summary
A display apparatus that prevents visual recognition of flickering in each of display areas having different resolutions includes a first pixel circuit, a first display element, a second pixel circuit, and a second display element. The first pixel circuit includes: a first driving transistor configured to control a first current that flows to the first display element; and a first initializing transistor configured to apply a first initializing voltage to a gate of the first driving transistor in response to a first scan signal. The second pixel circuit includes: a second driving transistor configured to control a second current that flows to the second display element; and a second initializing transistor configured to apply a second initializing voltage having a level different from a level of the first initializing voltage to a gate of the second driving transistor in response to the first scan signal.