Subpixel Voltage Line Layout for Data Delay and Dark Spot Suppression
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Solution Overview
Problem
Display devices face issues with data delay and complete darkening of sub pixels due to bundled data lines and short-circuits between pixel electrodes and common electrodes, particularly when implementing double rate driving methods.
Innovation Solution
The display device incorporates a design with a high potential voltage line and a reference voltage line positioned between the emission areas of sub pixels, eliminating data line bundling and incorporating a bridge to disconnect power to specific areas, preventing complete darkening in case of short-circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If data lines are bundled to reduce the number of lines, then device complexity is reduced, but data delay increases
Solution Approach 1:
The invention divides the display panel into multiple regions, with each region having independent data lines that do not bundle with other regions. This segmentation eliminates data delay caused by bundled lines while maintaining manageable device complexity through regional independence.
2Loss of time
If data lines are not bundled (independent lines for each region), then data delay is reduced, but device complexity increases
Solution Approach 1:
The display panel is divided into multiple independent regions, each with its own data lines. This segmentation reduces data delay by eliminating bundling effects while managing complexity through modular regional design where each region can be independently controlled and maintained.
3Ease of operation
If a bridge connects emission areas for continuous power supply, then ease of operation is improved, but reliability deteriorates due to short-circuit risks
Solution Approach 1:
The emission areas are divided into separate regions without bridging connections. Each region has independent power supply lines, which eliminates short-circuit risks between regions while maintaining power supply continuity through independent line management. This segmentation prioritizes reliability over operational convenience.
Solution Approach 2:
An insulating layer is introduced between emission areas to prevent short-circuits while allowing power supply. This intermediary structure maintains reliability by electrically isolating regions while still enabling functional operation through controlled power delivery.
Data Source
AI summary
A display device includes a display panel including a plurality of pixels is disposed; a data driver configured to supply a data signal to the pixels; and a gate driver configured to supply a gate signal to the pixels. The panel circuit includes: a plurality of data lines configured to supply the data signal to the pixels; a plurality of gate lines configured to supply the gate signal to the pixels; a high potential voltage line configured to supply a high potential voltage to the pixels; and a reference voltage line configured to supply a reference voltage to the pixels, and the high potential voltage line and the reference voltage line are between a first emission area and a second emission area of each of a plurality of sub pixels included in at least a first pixel of the plurality of pixels.