LCoS Display Control Circuit Peripheral Driving Extraction
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Solution Overview
Problem
The existing liquid crystal on silicon (LCoS) display technology faces challenges in reducing pixel size and improving output due to the large size of pixel units and display panels, resulting in low resolution and inefficient light utilization.
Innovation Solution
A display control circuit is introduced, featuring a pixel memory array circuit and driving circuits that are strategically positioned to minimize the volume and area occupied by the driving circuit within the pixel units, allowing for efficient modulation of pixel data and voltages, with the driving circuit projected outside the pixel units on the substrate, thereby reducing the overall size of the display panel and enhancing output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the pixel memory array circuit and driving circuit are integrated within the pixel units, then the display panel can be compact and self-contained, but the pixel unit size becomes large, reducing the output of the display panel per wafer
Solution Approach 1:
The driving circuit is extracted from the pixel units and placed in the peripheral region of the substrate. Only the pixel memory array circuit remains within the pixel units, while the driving circuit (including row driving circuits and column driving circuits) is positioned outside the pixel array region. This extraction reduces the area occupied by each pixel unit, allowing more pixel units to be produced per wafer, thereby improving productivity.
2Ease of operation
If the pixel memory array circuit is positioned within the pixel units, then direct control is achieved, but the overall display panel size increases
Solution Approach 1:
The display control circuit utilizes the peripheral region of the substrate (a different spatial dimension/region) to position the driving circuit. This allows the pixel memory array circuit to remain within the pixel units for direct control, while the driving circuit occupies the peripheral area, effectively using unused space to reduce the overall display panel area without compromising control functionality.
3Device complexity
If the driving circuit is placed within the pixel units, then compact integration is achieved, but the pixel size increases, reducing resolution
Solution Approach 1:
The driving circuit is extracted from the pixel units and relocated to the peripheral region of the substrate. This separation allows pixel units to be minimized in size while maintaining all necessary control functions through the externally positioned driving circuit. The reduced pixel unit size enables higher pixel density and improved resolution without sacrificing circuit integration functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration reduces the size of the display panel, improves resolution, and increases the output of the LCoS panel by optimizing the placement of the driving circuit relative to the pixel units, allowing for more efficient light modulation and higher resolution without increasing the wafer size.
Implementation Method 1
controls liquid crystals to rotate by semiconductor silicon crystal technology to control phase distribution of an incident light to modulate images
Data Source
AI summary
A display control circuit applies to a LCoS panel including pixel units and a substrate. The display control circuit includes a pixel memory array circuit and a driving circuit. The pixel memory array circuit includes pixel memory units. A projection of the pixel memory array circuit on the substrate is in a projection of the pixel units on the substrate. The driving circuit includes a row driving circuit and a column driving circuit. A projection of the driving circuit on the substrate is outside the projection of the pixel units on the substrate. The driving circuit provides a modulation signal and pixel data. The pixel memory array circuit modulates the pixel data by the modulation signal to provide a pixel display voltage to each of the pixel units.