Wireless Pixel Array Structure for Large Display Driving Capacity
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Solution Overview
Problem
The integration of gate drive circuits on display panels using GOA technology results in weakened driving capacity, particularly on large-size panels, leading to reliability issues and insufficient charging and discharging times, which affects the aperture opening ratio and image consistency, especially at high resolutions like 16K.
Innovation Solution
A pixel array structure with wireless receiving units that receive data signals wirelessly, eliminating the need for additional data lines and allowing for simultaneous updating of display areas, thereby reducing impedance effects and enabling a slim border design without integrated driver circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If GOA technology is used to integrate gate drive circuits on display panel, then border slimming is achieved, but driving capacity is weakened
Solution Approach 1:
The display panel is divided into multiple display areas that can be driven independently. Each pixel block within these areas contains wireless receiving units that can operate autonomously, allowing the system to maintain strong driving capacity in each segment while achieving overall panel coverage.
Solution Approach 2:
Wireless receiving units are introduced as intermediary components between the data drive circuit and pixel units. These units receive data signals wirelessly via antenna, eliminating the need for physical data lines to extend across the entire panel, thereby preserving driving capacity while enabling border slimming.
2Reliability
If block driving manner is used to improve driving capacity, then reliability is improved, but charging and discharging time becomes insufficient at high resolution
Solution Approach 1:
The display panel is segmented into multiple pixel blocks, each equipped with its own wireless receiving unit. This segmentation allows independent operation of each block, providing sufficient charging and discharging time for each segment while maintaining overall system reliability through coordinated block driving.
Solution Approach 2:
The system employs periodic scanning of pixel blocks in sequence. Each block is activated for a specific period to display information, allowing adequate time for charging and discharging operations within each block's active period while maintaining continuous display across the entire panel through sequential block activation.
3Loss of time
If more data lines are added to support high resolution block driving, then charging and discharging time is improved, but aperture opening ratio decreases
Solution Approach 1:
The patent replaces the mechanical/electrical system of physical data lines with a wireless transmission system. Data signals are transmitted wirelessly to pixel blocks through antenna and wireless receiving units, eliminating the need for extensive data line routing across the panel. This substitution maintains sufficient charging and discharging time for high-resolution display while preserving the aperture opening ratio by removing the space occupied by data lines.
Data Source
AI summary
A pixel array structure includes a plurality of scanning lines and a plurality of pixel blocks. Each pixel block includes a plurality of data lines, a plurality of pixel units, a wireless receiving unit, and a position selection unit. The plurality of pixel units is arranged in an array form, and each pixel unit is coupled to one of the plurality of scanning lines and one of the plurality of data lines. The wireless receiving unit receives a data signal in a wireless manner. The position selection unit transmits the data signal to one of the plurality of data lines according to a position selection signal.