Sequential Color Display Panel Light Emission Concentration
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Solution Overview
Problem
Sequential colour display methods in projectors, such as LCOS and OLED screens, suffer from blurring effects due to the spreading of light emissions over the entire video frame, which is attempted to be mitigated by distributing light emissions uniformly across time segments, but this increases the phenomenon of colour break-up.
Innovation Solution
Concentrating light emissions around a reference time segment and its immediate vicinity by prioritizing cell lighting during this segment and adjacent segments, particularly for the green component, to reduce blurring without increasing colour break-up.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If light emissions are distributed uniformly across time segments, then colour break-up is reduced, but blurring effect increases
Solution Approach 1:
The patent applies local quality by differentiating the treatment of time segments: a reference time segment receives full light emission while adjacent time segments receive reduced emission. This localized differentiation allows the reference segment to provide strong colour signal (reducing colour break-up) while limiting the spread of light emissions (reducing blurring), thus resolving the contradiction between uniform distribution and concentration.
2Object-generated harmful factors
If light emission is concentrated in reference time segment, then blurring effect is reduced, but colour break-up may increase
Solution Approach 1:
The patent applies partial action by providing light emission during the reference time segment while providing reduced light emission during adjacent time segments. This partial emission strategy maintains sufficient colour signal strength to prevent colour break-up while limiting the excessive spread of light that causes blurring, thus resolving the contradiction between concentration and uniform distribution.
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 approach effectively reduces the blurring effect while maintaining minimal colour break-up by ensuring close proximity of colour light emissions, enhancing image clarity without introducing new artefacts.
Implementation Method 1
the colours of the pixels of the image being restored thereafter by an effect of integration (in the human eye)
Data Source
AI summary
The present invention relates to a method of displaying a color video image in a sequential color display panel. The video frame is divided into a plurality of consecutive time segments each assigned to a given color component, and the video level of the pixels of the image is displayed by modulating the display time of the corresponding cells. The invention aims to propose a display method that reduces the blurring effect without causing color break-up. According to the invention, at least one reference time segment is defined in said plurality of time segments, and the image is displayed giving priority to lighting the cells during the reference time segment and the time segments closest to the reference time segment.