Sub-pixel Repeat Array for Display Resolution and Cost
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Solution Overview
Problem
Current display technologies face challenges in achieving high resolution, high brightness, and low power consumption while maintaining manufacturing costs, as the number of sub-pixels increases with resolution, leading to higher costs and complexity in display panel manufacturing.
Innovation Solution
A display apparatus and method utilizing a sub-pixel repeat array with a display driver that employs a sub-pixel rendering technique, where a center sub-pixel unit and neighboring sub-pixel units are arranged to form a pixel array, with specific luminance summations and color arrangements to enhance display quality and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of sub-pixels is increased to achieve high resolution, then the resolution of the display panel is improved, but the manufacturing cost is increased
Solution Approach 1:
The invention divides each pixel into multiple sub-pixels (first color sub-pixel, second color sub-pixel, third color sub-pixel) with different luminance capabilities. By segmenting the pixel structure and assigning different functions to different sub-pixels, the system achieves higher effective resolution without proportionally increasing the total number of physical sub-pixels, thereby reducing manufacturing complexity and cost.
Solution Approach 2:
The invention implements local quality by creating sub-pixels with different luminance characteristics within the same pixel. The first color sub-pixel has different luminance than the second and third color sub-pixels, allowing each sub-pixel to be optimized for its specific function. This local differentiation enables high-resolution display without uniformly increasing sub-pixel density across the entire panel, thus controlling manufacturing costs.
2Measurement precision
If different sub-pixel arrangements are used to enhance visual resolution, then the display quality is improved, but the device complexity is increased
Solution Approach 1:
The invention employs asymmetric sub-pixel arrangements where the first color sub-pixel, second color sub-pixel, and third color sub-pixel are positioned non-uniformly within each pixel. This asymmetric layout optimizes visual resolution by placing higher luminance sub-pixels in positions that maximize perceived brightness, while maintaining a relatively simple overall pixel structure that does not significantly increase device complexity.
3Illumination intensity
If the display driver writes pixel data at different rates, then the light transmittance is improved, but the display quality may be compromised
Solution Approach 1:
The display driver dynamically adjusts the data writing rate based on the specific pixel being written. Pixels with higher luminance requirements (containing first color sub-pixels) are written at different rates compared to pixels with lower luminance requirements. This dynamic writing strategy optimizes light transmittance for each pixel type while maintaining overall display quality through adaptive control.
Data Source
AI summary
A display apparatus including a display panel and a display driver is provided. The display panel includes a sub-pixel repeat array. The sub-pixel repeat array is repeatedly arranged to form a pixel array on the display panel. The pixel array includes at least one map display unit. The display driver is coupled to the display panel. The display driver drives the display panel to display an image by using a sub-pixel rendering method. The image includes at least one specified intensity map. The map display unit includes a center sub-pixel unit and a plurality of neighboring sub-pixel units. The specified intensity map includes one or more white pixel points. In the map display unit, luminance summations of sub-pixels of different colors are equal. Furthermore, a display driving method is also provided.