Sub-Pixel Gate-Line Layout for Higher-Aperture Vehicle Displays
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Solution Overview
Problem
Display apparatuses face challenges in reducing anode electrode area in non-display areas and improving lifespan and power consumption, particularly in vehicle displays where content display must not interfere with driving operations.
Innovation Solution
The display apparatus features sub-pixels with anode electrodes extending to different pixels, allowing for reduced anode electrode area in non-display regions, and utilizing a bank with lenses to cover these electrodes, enabling improved aperture ratio and lifespan through efficient sub-light emitting diode driving by different gate lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If anode electrodes are extended to different pixels within each sub-pixel, then the aperture ratio is improved, but the device complexity increases
Solution Approach 1:
The sub-pixel is divided into multiple sub-light emitting diodes (first and second sub-LEDs), each with its own anode electrode. This segmentation allows the anode electrodes to be extended to different pixels, increasing the aperture ratio while maintaining manageable complexity through modular organization
Solution Approach 2:
Multiple anode electrodes from different sub-light emitting diodes are merged and extended to different pixels within the same sub-pixel. This merging strategy maximizes the use of display area while sharing common structural elements, thereby improving aperture ratio without proportionally increasing device complexity
2Duration of action of stationary object
If sub-light emitting diodes are driven by different gate lines, then the lifespan is improved, but the device complexity increases
Solution Approach 1:
The sub-pixel is segmented into multiple sub-light emitting diodes that can be independently controlled by different gate lines. This segmentation enables staggered operation where not all LEDs are driven simultaneously, reducing stress on individual components and extending overall device lifespan
Solution Approach 2:
Different gate lines drive the sub-light emitting diodes in a periodic or staggered manner rather than simultaneously. This periodic action allows certain LEDs to rest while others are active, distributing the operational stress and heat generation over time, thereby extending the lifespan of the display apparatus
3Area of stationary object
If anode electrode area in non-display region is reduced, then the aperture ratio is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The anode electrodes are extended in the pixel direction (horizontal dimension) rather than increasing their area in the vertical dimension. This dimensional change allows the electrodes to reach different pixels without increasing the overall electrode area in the non-display region, improving aperture ratio while maintaining manufacturability
Solution Approach 2:
The anode electrodes are designed with different local characteristics - extended regions within the display area that reach adjacent pixels, and minimized regions in the non-display area. This local quality differentiation optimizes the aperture ratio while keeping the manufacturing precision requirements manageable by concentrating the complexity only where necessary
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 enhances the aperture ratio, reduces power consumption, and extends the lifespan of the display apparatus while ensuring driver safety by minimizing distractions during vehicle operation.
Implementation Method 1
each of the plurality of sub-pixels includes a plurality of sub-light emitting diodes configured to emit light of a same color
Data Source
AI summary
A display apparatus may include a substrate; a plurality of pixels on the substrate in a row direction and a column direction and including a plurality of sub-pixels; a plurality of sub-pixel circuits in the plurality sub-pixels on the substrate; and a plurality of gate lines on the substrate and connected to the plurality of sub-pixel circuits. Each of the plurality of sub-pixels may include a plurality of sub-light emitting diodes configured to emit light of the same color, at least one sub-light emitting diode of one sub-pixel included in one of the plurality of pixels may be configured to be driven by a gate line, and a sub-light emitting diode of another sub-pixel included in the same one of the plurality of pixels may be configured to be driven by another gate line that is different from the gate line.