Display Device Data Line Sharing for High Resolution
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Solution Overview
Problem
High-resolution and small-size organic electroluminescent display (OELD) devices face challenges due to the increased number of signal lines and driving ICs required, which can lead to insufficient installation space for components.
Innovation Solution
The proposed solution involves configuring odd and even pixels to share the same data line, with each pixel connected to different gate lines, allowing for efficient data signal distribution and reduced component installation space by alternating data signal application across horizontal time intervals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of pixels is increased for high resolution display, then the display resolution is improved, but the number of signal lines and driving ICs increases leading to insufficient installation space
Solution Approach 1:
The patent merges the data line connections by having both odd and even pixels share the same data line. This is achieved by connecting pixels in the same column to a common data line, eliminating the need for separate data lines for odd and even pixels. Additionally, the patent combines the function of multiple driving ICs into a single driving IC that can control multiple pixels through time-division multiplexing of gate lines, thereby reducing the overall number of driving ICs required.
Solution Approach 2:
The patent employs periodic action by alternating the activation of odd and even pixels in time-division multiplexing fashion. During odd horizontal periods, odd pixels are activated while even pixels remain inactive, and during even horizontal periods, even pixels are activated while odd pixels remain inactive. This periodic switching allows a single data line to serve multiple pixels sequentially, reducing the total number of data lines required.
2Area of stationary object
If the number of signal lines is reduced for compact design, then the installation space is improved, but the data signal distribution complexity increases
Solution Approach 1:
The patent uses periodic time-division multiplexing to distribute data signals efficiently. Data signals for both odd and even pixels are transmitted through the same data line at different time intervals. During odd horizontal periods, data is sent to odd pixels, and during even horizontal periods, data is sent to even pixels. This periodic transmission pattern simplifies the physical布线 while maintaining clear signal distribution through temporal separation.
Solution Approach 2:
The patent segments the horizontal display period into alternating odd and even horizontal periods. This segmentation allows different subsets of pixels (odd vs. even) to be activated and data-driven in separate time intervals. By dividing the display refresh cycle into these segments, the system can reuse the same data lines for different pixel groups at different times, reducing the total number of data lines needed while maintaining organized signal distribution.
Data Source
AI summary
A display device includes a data line; first and second gate lines; a first pixel including a first switching element, the first switching element connected to the data line and the first gate line; and a second pixel including a second switching element, the second switching element connected to the data line and the first and second gate lines.