Display Subpixel Signal Optimization for Luminance and Aperture Area
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Solution Overview
Problem
Existing image display apparatuses face challenges in maintaining high luminance while minimizing power consumption and aperture region area, leading to suboptimal output signal optimization and potential deterioration in picture quality due to the configuration of subpixels.
Innovation Solution
A driving method for an image display apparatus that calculates and optimizes subpixel output signals by considering input signals from adjacent pixels, ensuring the fourth subpixel's output is based on both its own input and the adjacent first pixel's input, thereby reducing aperture region area and enhancing luminance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a white displaying subpixel is added to enhance luminance, then luminance is improved, but aperture region area of color subpixels decreases
Solution Approach 1:
The pixel is divided into multiple subpixels (red, green, blue, and white displaying subpixels), allowing each subpixel to contribute differently to the overall luminance. The white displaying subpixel is specifically designed to enhance luminance while the color subpixels maintain their aperture regions for color display functionality.
Solution Approach 2:
Different subpixels within the same pixel are assigned different functions: the white displaying subpixel is optimized for luminance enhancement, while the red, green, and blue subpixels are optimized for color display. This local differentiation allows the white subpixel to compensate for the reduced aperture area of color subpixels without compromising overall display quality.
2Device complexity
If the aperture region area of subpixels is decreased, then device complexity is reduced, but maximum light transmission amount decreases
Solution Approach 1:
The patent combines the luminance function of the white displaying subpixel with the color display function of the red, green, and blue subpixels. By merging these functions within a single pixel structure, the system achieves both simplified device complexity and maintained light transmission efficiency through coordinated control of all subpixels.
Solution Approach 2:
The signal processing section optimizes output signals to individual subpixels based on input signals, creating a feedback mechanism that adjusts the luminance contribution of each subpixel. This allows the system to compensate for reduced aperture area by dynamically optimizing the light transmission and display characteristics of each subpixel.
3Device complexity
If output signals are not optimized for adjacent pixels, then device complexity is reduced, but picture quality deteriorates
Solution Approach 1:
The signal processing section performs preliminary optimization of output signals to subpixels before they are displayed. By pre-calculating and optimizing the signals for each subpixel based on adjacent pixel inputs, the system ensures high picture quality without requiring complex real-time processing during display operation.
Data Source
AI summary
Disclosed herein is a driving method for an image display apparatus which includes an image display panel and a signal processing section; the driving method including the steps, further carried out by the signal processing section, of calculating a third subpixel output signal to a (p,q)th first pixel, based at least on a third subpixel input signal to the (p,q)th first pixel and a third subpixel input signal to the (p,q)th second signal, and outputting the third subpixel output signal to the third subpixel of the (p,q)th first pixel; and further calculating a fourth subpixel output signal to the (p,q)th second pixel based at least on the third subpixel input signal to the (p,q)th second pixel and the third subpixel input signal to the (p+1,q)th first pixel and outputting the fourth subpixel output signal to the fourth subpixel of the (p,q)th second pixel.