Display Panel Fake Data Insertion With Simplified Pixel Circuits
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Solution Overview
Problem
Existing display devices face challenges with reduced aperture ratio and increased bezel size due to complex sub-pixel circuits and additional components for fake data insertion driving, leading to shortened device lifetime and luminance deviations.
Innovation Solution
A display device with a simplified sub-pixel circuit structure that uses a 1-scan structure for fake data insertion driving, minimizing the need for additional gate driving units and implementing efficient fake data insertion through a controller that controls gate and data driving circuits to alternate and faster output of real and fake images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional gate driving circuits and lines are added for fake data insertion driving, then fake data insertion driving can be implemented, but aperture ratio is reduced and device lifetime is shortened
Solution Approach 1:
The existing gate driving circuit is made multi-functional by enabling it to drive both real images and fake images through timing control. The gate driving circuit uses the same gate lines and transistors for both real and fake data insertion, eliminating the need for separate additional gate driving circuits. This achieves fake data insertion capability while avoiding increased device complexity
Solution Approach 2:
The patent implements dynamic timing control where the gate driving circuit operates at different speeds for real and fake image display. During fake data insertion, the gate driving circuit operates at a higher speed with shorter pulse widths, while during real image display, it operates at normal speed. This dynamic operation allows the same circuit to handle both functions effectively
2Adaptability or versatility
If additional gate driving units are added for fake data insertion driving, then fake data insertion can be achieved, but bezel size increases
Solution Approach 1:
The gate driving circuit is designed to serve multiple purposes - driving both real images and fake images using the same gate lines and transistor structures. By eliminating the need for separate additional gate driving units, the circuit area is minimized, which directly reduces the bezel size and maximizes the aperture ratio
3Speed
If fake image is output at faster rate than real image, then response time is improved, but luminance deviation occurs
Solution Approach 1:
The patent applies parameter changes by adjusting the gate clock frequency and pulse width duration based on the type of image data being displayed. During fake data insertion, the gate clock operates at a higher frequency with shorter pulse widths to achieve fast output. During real image display, the gate clock operates at normal frequency. The controller dynamically adjusts these parameters to maintain luminance consistency while achieving fast response for fake images
Data Source
AI summary
The present disclosure relates to a display device, which includes a display panel including a plurality of pixel arrays, a gate driving circuit configured to supply a gate signal to the pixel array, a data driving circuit configured to supply an image data voltage for displaying a real image and a fake data voltage for displaying a fake image that differs from the real image to a data line connected to the pixel array, and a controller configured to control the gate driving circuit and the data driving circuit so that the display panel outputs the real image and the fake image, wherein the fake image is output to the display panel at a faster rate than the real image.