Matrix-Wired RGB Display Driving for Luminance Balance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in effectively driving multiple light emitting devices with different colors, leading to imbalanced luminance ratios and increased assembly complexity due to the need for numerous driving components.
Innovation Solution
A display device with a matrix-form wiring structure that uses multiple column and row lines to connect electrodes of light emitting devices, applying distinct reset voltages to each column line after emission, and reducing the number of external driving components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple light emitting devices with different colors are driven using conventional wiring structures, then the display can show multi-color images, but the number of driving components increases and assembly complexity increases
Solution Approach 1:
The patent merges the driving functions for multiple light emitting devices by sharing common column lines and row lines in a matrix arrangement. Instead of having separate driving components for each light emitting device, the patent combines them into a unified driver structure that controls multiple devices through shared wiring, thereby reducing the total number of driving components while maintaining multi-color display capability
Solution Approach 2:
The column lines and row lines are designed to serve multiple functions simultaneously. The same column line can drive different light emitting devices at different times, and the same row line can control multiple light emitting devices in parallel. This multi-functional wiring structure eliminates the need for dedicated driving components for each device, reducing overall system complexity
2Adaptability or versatility
If light emitting devices with different colors are driven simultaneously, then the display shows balanced multi-color images, but the luminance ratios become imbalanced
Solution Approach 1:
The patent applies different reset voltages to different column lines based on the specific requirements of the light emitting devices they drive. Instead of using a uniform reset voltage for all devices, the system tailors the reset voltage to each column line's connected light emitting devices, ensuring optimal luminance ratios for each color while maintaining overall display quality
Solution Approach 2:
The patent changes the voltage parameter (reset voltage) for different column lines to optimize the performance of light emitting devices with different colors. By adjusting the reset voltage parameter for each column line, the system compensates for the different characteristics of red, green, and blue light emitting devices, achieving balanced luminance ratios across all colors
3Ease of operation
If numerous driving components are used to control multiple light emitting devices, then each device can be controlled independently, but the assembly process becomes more complex
Solution Approach 1:
The patent combines multiple driving functions into integrated driver circuits that share common wiring structures. The driver circuit is designed to control multiple light emitting devices through shared column and row lines, reducing the number of separate driving components that need to be assembled. This integration simplifies the assembly process while maintaining the ability to control each device independently through the matrix addressing scheme
Data Source
AI summary
A display device and an electronic device including the same are discussed. The display device can include a first light emitting device arranged in a display area and configured to emit a first color light, a second light emitting device arranged in the display area and configured to emit a second color light, a third light emitting device arranged in the display area and configured to emit a third color light, and a first driver configured to drive the first light emitting device, the second light emitting device, and the third light emitting device. The first driver can receive two or more input reset voltages for resetting each of a first electrode of the first light emitting device, a first electrode of the second light emitting device, and a first electrode of the third light emitting device. The two or more input reset voltages can have different voltage values.