Integrated Driver IC for OLED Backlight and LCD Panel
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The complexity and increased cost of separate driver IC arrangements for OLED and liquid crystal display panels lead to a complex product structure and rising costs.
Innovation Solution
A display driving circuit that connects pixel cells on a liquid crystal display panel with sub-pixels on an OLED backlight through a shared signal output terminal, utilizing a shift register unit, gate driver, and source driver to simultaneously control and charge both pixel cells and sub-pixels, eliminating the need for separate driving circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate driver ICs are used for OLED panel and liquid crystal display panel, then each panel can be driven independently, but the number of driver ICs increases leading to complex product structure and rising costs
Solution Approach 1:
The patent combines the driver IC for the OLED panel and the driver IC for the liquid crystal display panel into a single integrated driver IC. This integrated driver IC includes a shift register unit that can sequentially output signals to both the OLED sub-pixels and the liquid crystal pixel cells, eliminating the need for separate driver ICs while maintaining independent driving capability for each panel type.
Solution Approach 2:
The integrated driver IC is designed with multi-functional capability to drive both OLED and liquid crystal display technologies. The shift register unit within the integrated driver IC can generate and output driving signals compatible with both OLED sub-pixels and liquid crystal pixel cells, making a single driver IC universal for both display panel types.
2Reliability
If separate driver ICs are used for OLED panel and liquid crystal display panel, then each panel can be driven independently, but the number of driver ICs increases leading to rising costs
Solution Approach 1:
The patent combines the driver IC for the OLED panel and the driver IC for the liquid crystal display panel into a single integrated driver IC. This integration reduces the total number of components that need to be manufactured, assembled, and tested, thereby reducing manufacturing costs while preserving the ability to independently drive both display panels.
3Adaptability or versatility
If multiple driver ICs are arranged separately, then each driver IC can be optimized for its specific panel, but the overall system complexity increases
Solution Approach 1:
The integrated driver IC is designed with multi-functional capability to drive both OLED and liquid crystal display technologies. The shift register unit within the integrated driver IC can generate and output driving signals compatible with both OLED sub-pixels and liquid crystal pixel cells, making a single driver IC universal for both display panel types while maintaining panel-specific optimization through configurable signal output.
Data Source
AI summary
A display driving circuit for driving pixel cells located on a liquid crystal display panel and sub-pixels located on an OLED panel which is an OLED backlight, one of the pixel cells corresponding to at least one of the sub-pixels, the display driving circuit comprising: a shift register unit having a source signal terminal, a pulse signal terminal, and at least one signal output terminal, and configured to output a signal inputted from the source signal terminal to the signal output terminal under control of the pulse signal terminal; wherein the one of the pixel cells and the at least one of the sub-pixels corresponding thereto are connected to the same signal output terminal.