Dual Gate Array Substrate for Display Devices
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Solution Overview
Problem
Dual gate driving liquid crystal display devices experience high power consumption, particularly when displaying single or mixed color frames, due to repeated changes in output voltage required for sub-pixels of different colors coupled to the same data line.
Innovation Solution
A dual gate array substrate design where each display unit consists of two sub-pixels of the same color, coupled to the same data line, and arranged such that each data line outputs a constant voltage when displaying a single color frame, reducing the need for repeated voltage changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If dual gate driving is used to reduce the number of data lines and frame width, then device complexity and frame width are reduced, but power consumption increases significantly
Solution Approach 1:
The invention segments the display panel into multiple regions, each region containing sub-pixels of the same color that share a common data line. This segmentation allows independent voltage control for different color regions, eliminating the need for repeated voltage changes on the same data line and thereby reducing power consumption while maintaining the dual gate driving architecture
Solution Approach 2:
The invention applies local quality by assigning different voltage characteristics to different spatial regions of the display. Each region is optimized for its specific color requirements, with data lines maintaining constant voltage levels tailored to the color characteristics of their associated sub-pixels, thus reducing overall power consumption
2Length of stationary object
If dual gate driving is used to reduce frame width, then the space of fan-out wirings is reduced, but power consumption increases due to repeated voltage changes
Solution Approach 1:
By segmenting the display into color-based regions with shared data lines, the invention eliminates repeated voltage transitions on each data line, thereby reducing power consumption while preserving the compact frame width achieved through dual gate driving
Solution Approach 2:
The invention implements a periodic scanning scheme where each data line is activated once per frame for its associated color region, maintaining constant voltage during the frame period. This periodic activation pattern eliminates unnecessary voltage changes and reduces power consumption compared to conventional dual gate driving
Data Source
AI summary
The embodiment of the present disclosure provides a dual gate array substrate and a display device. The dual gate array substrate includes pairs of gate lines and data lines. The pairs of gate lines and the data lines intersect perpendicularly to define multiple display units arranged in an array. The display units include two sub-pixels of a same color, and the sub-pixels of the same color on both sides of one data line are coupled to the one data line.