Display Data Line Layout Around a Through Portion for Pixel Independence
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Solution Overview
Problem
Conventional display devices face challenges in achieving independent control of pixels in the same row due to shared data signals, leading to difficulties in forming various images, especially when the data lines are disconnected by a through portion, resulting in time delays and limitations in image formation.
Innovation Solution
The display device incorporates a substrate with a display layer featuring scan lines and data lines, including a through portion that disconnects certain data lines, and a data connection line that connects the first and third data lines, allowing for independent control of pixels by providing a data signal equalization through a metallic layer inducing parasitic capacitance, thereby resolving the time delay and enabling independent operation of pixels in the same row.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a through portion is introduced to disconnect data lines, then device thinness and flexibility are improved, but pixel control independence deteriorates due to time delays
Solution Approach 1:
The data line is segmented into multiple portions (first data line portion, second data line portion) separated by the through portion. Each segment can be independently controlled with different timing signals, allowing pixels on opposite sides of the through portion to be driven independently without interference from signal propagation delays across the entire continuous data line.
Solution Approach 2:
The first data line portion is driven earlier than the second data line portion to compensate for the time delay caused by signal propagation through the display panel. This preliminary action ensures that both portions receive data signals at appropriately timed intervals, maintaining pixel control independence despite the physical separation introduced by the through portion.
2Adaptability or versatility
If data lines are disconnected by a through portion, then device flexibility is improved, but image formation capability deteriorates due to shared data signals
Solution Approach 1:
By segmenting the data line at the through portion, the patent enables independent control of pixel rows on opposite sides of the discontinuity. This segmentation allows the display device to form complex images that require independent manipulation of different row groups, thereby maintaining or even enhancing image formation capability while preserving device flexibility.
Solution Approach 2:
The patent implements dynamic control where the timing and content of data signals supplied to the first and second data line portions can be independently adjusted based on the image content requirements. This dynamic signaling approach enables sophisticated image formation patterns that would be impossible with uniformly timed data signals across the entire display.
3Device complexity
If pixels in the same row share a data line, then device complexity is reduced, but independent pixel control is lost
Solution Approach 1:
The data line structure is segmented at the through portion, creating distinct first and second data line portions. Although each portion still serves multiple pixels within its segment, the segmentation enables independent timing control of each segment, providing a balance between structural simplicity and operational independence that would be impossible with either fully shared or fully isolated data lines.
Solution Approach 2:
Different timing characteristics and control parameters are applied locally to the first and second data line portions based on their specific positions and requirements. This local quality approach allows each segment to be optimized for its particular function while maintaining overall system simplicity, enabling independent pixel control without requiring completely separate data lines for each pixel.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for independent control of pixels, enhancing the display device's ability to form various images by ensuring that even pixels connected to the same data line can emit light independently, improving image formation capabilities.
Implementation Method 1
a metallic layer to induce parasitic capacitance between an extended portion of the fourth data line and the metallic layer
Data Source
AI summary
A display device includes a through portion passing through a display layer. The display includes a plurality of scan lines above the substrate and extending in a first direction, a plurality of data lines extending in a second direction, and a plurality of pixels connected to the scan lines and data lines. The data lines include a first data line and a second data line disconnected by the through portion, and a third data line spaced apart from the through portion along the first direction. The first data line is electrically connected with the third data line.