Pixel Array Substrate Segmentation for Display Power and Signal Decay
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Solution Overview
Problem
High-resolution display panels face challenges with increased power consumption and signal decay due to the large number of data lines and data driver integrated circuits, which affects display quality and design feasibility, especially in narrower border designs.
Innovation Solution
A pixel array substrate design that utilizes multiple data lines and switches to connect subpixels to data-input terminals, with clock control signals having phase shifts, allowing for reduced data driver integrated circuits and improved power management by distributing data lines uniformly across subpixels and using a multiplexing technique.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of data lines is increased to achieve higher resolution, then display quality is improved, but power consumption increases and signal decay worsens
Solution Approach 1:
The patent divides the display panel into multiple regions, each with its own data driver integrated circuit. Data lines are segmented to connect only to subpixels within their respective regions, reducing the total length and load of each data line. This segmentation allows high resolution to be achieved without proportionally increasing power consumption across the entire panel.
Solution Approach 2:
The patent introduces a two-dimensional arrangement of data driver integrated circuits, placing them at different positions along the data lines rather than concentrating them in one location. This spatial distribution reduces the maximum length of data lines and balances the load across multiple drivers, thereby reducing overall power consumption while maintaining high resolution.
2Measurement precision
If the number of data lines is increased to achieve higher resolution, then display quality is improved, but signal decay increases
Solution Approach 1:
By segmenting the display into multiple regions with separate data drivers, the patent reduces the length of individual data lines. Shorter data lines experience less signal attenuation and decay, ensuring better signal integrity even at high resolutions.
Solution Approach 2:
The patent introduces data driver integrated circuits as intermediary components that actively drive and refresh data signals along the data lines. These drivers compensate for signal decay by providing sufficient drive strength and signal regeneration, ensuring reliable data transmission over the required distances.
3Measurement precision
If more data driver integrated circuits are used to support more data lines, then display resolution is improved, but device complexity increases
Solution Approach 1:
The patent divides the data driving function into multiple independent data driver integrated circuits, each responsible for a specific region. This modular segmentation allows for standardized, interchangeable driver modules that simplify design and manufacturing while supporting high resolution displays.
Data Source
AI summary
The present application discloses a pixel array substrate. The pixel array substrate includes a plurality of pixels arranged in an array having multiple data-input terminals. N columns of subpixels per each column of pixels are associated with N sets of M numbers of data lines. N is an integer equal to and greater than 1 and M is an even number equal to or greater than 2. The pixel array substrate also includes N sets of M numbers of switches coupled respectively to the N sets of M numbers of data lines. Control terminals of each set of M numbers of switches are respectively coupled to M numbers of clock-signal terminals to receive respective clock control signals to control M groups of subpixels in each corresponding one column of subpixels for connecting with one of the multiple data-input terminals respectively via each corresponding set of M numbers of data lines.