Display Device Data Line Voltage Control for Non-Matrix Subpixel Readability
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Solution Overview
Problem
Display devices with subpixels disposed in a pattern different from a matrix pattern often experience reduced readability.
Innovation Solution
A display device and driving method where subpixels are electrically connected to data lines and gate lines, with a specific voltage supply strategy that includes supplying a dummy voltage to one type of data line and an image frame voltage to another type of data line, while a turn-on gate signal is applied, to improve readability and enable low power driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If subpixels are disposed in a non-matrix pattern, then device versatility is improved, but readability deteriorates
Solution Approach 1:
The patent applies different voltage supply strategies to different types of data lines based on their local characteristics. First type data lines receive dummy voltages while second type data lines receive image frame voltages, allowing optimized control for different subpixel positions in the non-matrix pattern arrangement.
Solution Approach 2:
The patent changes the voltage parameter supplied to data lines based on the gate line activation state. When a turn-on gate signal is supplied to a first gate line, dummy voltage is supplied to first type data lines while image frame voltage is supplied to second type data lines, dynamically adjusting electrical parameters to improve readability.
2Manufacturing precision
If dummy voltage is supplied to first type data line, then readability is improved, but energy consumption increases
Solution Approach 1:
The patent applies dummy voltage only to first type data lines when needed, rather than supplying it to all data lines continuously. This partial application of the voltage strategy improves readability only where necessary, reducing overall energy consumption compared to a full dummy voltage approach.
Solution Approach 2:
The dummy voltage is supplied periodically based on the gate line activation cycles. When a turn-on gate signal is supplied to a first gate line, dummy voltage is supplied to first type data lines; this periodic activation aligns with the display refresh cycle, improving readability while minimizing energy consumption by not maintaining dummy voltage continuously.
3Manufacturing precision
If image frame voltage is supplied to second type data line, then image quality is improved, but device complexity increases
Solution Approach 1:
The patent segments data lines into first type and second type data lines, allowing different voltage supply strategies for different segments. This segmentation enables precise control of image frame voltage to second type data lines for improved image quality while managing complexity through systematic categorization rather than individual control of each data line.
Data Source
AI summary
A display device and a driving method thereof. While a turn-on gate signal is being supplied to a first gate line, a dummy voltage is supplied to a first type data line, and a first image frame voltage for expressing a first image frame line is supplied to a second type data line. The readability of an image frame is improved.