LCD Panel Pixel Sharing for Edge Blur and Power
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Solution Overview
Problem
High-resolution liquid crystal display panels face challenges with reduced light transmittance and increased power consumption due to increased pixel count, leading to edge blur and higher production costs, particularly with the RGBW pixel structure which requires more sub-pixels and complex processing.
Innovation Solution
A driving method for liquid crystal display panels that includes red, green, blue, and white sub-pixels, where image data is processed to share pixel data across multiple image pixels, reducing the number of display sub-pixels required while maintaining image quality, thereby improving edge blur and production efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of pixels is increased to achieve high resolution, then the display resolution is improved, but the light transmittance becomes lower and power consumption increases
Solution Approach 1:
Multiple image pixels are merged to share display sub-pixels. Specifically, multiple image pixels (e.g., 2x2 or larger groups) share the same physical display sub-pixels through a mapping relationship, reducing the total number of display sub-pixels required while maintaining the perceived resolution through pixel sharing and data interpolation techniques
2Illumination intensity
If white sub-pixels are added to increase light transmittance, then the transmittance is improved, but the number of sub-pixels increases and process yield decreases
Solution Approach 1:
Multiple image pixels share the same display sub-pixels, reducing the total sub-pixel count. This merging approach maintains light transmittance benefits while simplifying the manufacturing process by reducing the number of sub-pixels that require precise alignment and fabrication
Solution Approach 2:
Display sub-pixels serve multiple functions by being shared across multiple image pixels. A single display sub-pixel can represent multiple image pixel values through data processing and interpolation, making the display sub-pixel structure more universal and efficient
3Area of stationary object
If the size of sub-pixel is reduced to maintain display size, then the display area is maintained, but the process requirements become higher and cost increases
Solution Approach 1:
Multiple image pixels are combined to share display sub-pixels, which allows for larger display sub-pixel sizes while maintaining the same display area. This reduces process requirements and manufacturing complexity compared to using smaller sub-pixels
4Measurement precision
If more sub-pixels are added to maintain resolution, then the display resolution is maintained, but the device complexity increases
Solution Approach 1:
Multiple image pixels are merged to share display sub-pixels, reducing the total number of sub-pixels required. This merging strategy maintains display resolution through intelligent data mapping while significantly reducing device complexity and sub-pixel structure complexity
Data Source
AI summary
A liquid crystal display (LCD) panel and a driving method thereof are provided. The LCD panel includes display pixels each including RGBW display sub-pixels. The method includes: receiving an image data for representing a to-be-displayed image including image pixels; calculating RGBW image sub-pixel data corresponding to the image pixels according to the image data; using a first predetermined number of image pixels as a repeat unit and generating RGBW display sub-pixel data corresponding to a second predetermined number of display pixels by using each repeat unit in a pixel sharing manner, the first predetermined number being greater than the second predetermined number; and using the RGBW display sub-pixel data to drive RGBW display sub-pixels of corresponding display pixels. Accordingly, the edge blur phenomenon can be effectively improved by the image pixel sharing.