Global Emission Display System Independent Pixel Control
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Solution Overview
Problem
Conventional display systems rely on scanning or rasterization, which limits speed and increases power consumption due to hardware multiplexing, leading to inefficiencies in addressing pixels and controlling luminance.
Innovation Solution
A display system with global emission without scanning, where each pixel has a light emitting unit, a driver circuit, and a digital counter that operates independently, eliminating the need for row and column decoders and allowing for simultaneous frame data storage and luminance control using pulse width modulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If hardware multiplexing is used to share display hardware among pixels, then hardware cost and size are reduced, but speed is limited and power consumption increases
Solution Approach 1:
The patent divides the display panel into independently controllable pixel arrangements, where each pixel arrangement has its own dedicated driver circuit and digital counter. This segmentation eliminates the need for hardware multiplexing and row/column decoders, allowing each pixel to be addressed simultaneously without sharing hardware resources, thereby resolving the contradiction between hardware complexity and addressing speed.
2Device complexity
If hardware multiplexing is used to share display hardware among pixels, then hardware cost and size are reduced, but power consumption increases
Solution Approach 1:
The patent assigns dedicated driver circuits and digital counters to each pixel arrangement, eliminating the need for complex multiplexing hardware that consumes significant power. By segmenting the control architecture, the system reduces power consumption associated with hardware sharing while maintaining manageable device complexity through modular pixel-level independence.
3Device complexity
If scanning or rasterization is used to address pixels, then hardware can be shared among pixels, but scanning artifacts like flickering and ghosting occur
Solution Approach 1:
The patent eliminates scanning by dividing the display into independently controllable pixel arrangements with dedicated driver circuits. Each pixel arrangement can be updated simultaneously without the sequential row-by-row scanning process, thereby eliminating scanning artifacts like flickering and ghosting while maintaining hardware efficiency through modular architecture.
Solution Approach 2:
The patent replaces the mechanical scanning process with a digital control approach using digital counters that can simultaneously manage multiple pixel arrangements. This substitution of the scanning mechanism with a parallel digital addressing system eliminates the temporal sequentiality that causes flickering and ghosting artifacts.
Data Source
AI summary
A display system is provided that comprises a display panel having a plurality of pixel arrangement. Each pixel arrangement comprises at least one light emitting unit, at least one driver circuit operably coupled to the light emitting unit, and at least one digital counter operably coupled to the driver circuit. In this regard, the digital counter is configured to store a data value to be counted and to toggle a state of the driver circuit upon expiry, thereby toggling a state of the light emitting unit to perform luminance control of the pixel arrangement.