Display Apparatus Alternating Light Therapy Frames for Eye Safety
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Solution Overview
Problem
Individuals with color vision deficiency face challenges in viewing images while receiving light therapy, as conventional light therapy can have adverse effects on the eyes, and existing technologies fail to provide a solution that allows both color-weak and color-normal individuals to receive light therapy without eye damage.
Innovation Solution
A display apparatus and system that alternately displays a normal image and a light therapy image, using shutter glasses control signals to open and close shutters for each eye, ensuring that the light therapy image does not adversely affect the viewer's eyes, while also accommodating color-weak individuals by displaying a third image optimized for their color perception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If light therapy is applied to the eye, then therapeutic effect is improved, but eye safety deteriorates
Solution Approach 1:
The display alternates between displaying the light therapy image and non-light therapy images in sequential frames. The shutter glasses synchronously open and close to allow light exposure only during light therapy frames, creating periodic on/off cycles that enable therapeutic effect while preventing continuous harmful exposure to the eye
Solution Approach 2:
The light therapy delivery is segmented into discrete time intervals corresponding to individual display frames. By dividing the continuous light exposure into separate frame-based segments and synchronizing shutter operation with these segments, the system enables controlled therapeutic exposure while maintaining eye safety between segments
2Reliability
If conventional light therapy is used, then therapeutic benefit is achieved, but color-weak individuals cannot view images simultaneously
Solution Approach 1:
The display content is segmented into multiple types of frames: light therapy frames for therapeutic effect and non-light therapy frames for normal viewing. Color-weak individuals view the display without shutter glasses during non-light therapy frames, while color-normal individuals use shutter glasses to view both light therapy and normal content during their respective frames
Solution Approach 2:
The display system serves multiple functions simultaneously: it provides light therapy to color-normal individuals, enables normal image viewing for color-weak individuals, and allows both groups to view content during their respective time windows. The same display apparatus and content delivery system accommodate different user needs through temporal multiplexing
3Ease of operation
If images are displayed continuously, then viewing experience is maintained, but light therapy effectiveness is reduced
Solution Approach 1:
The display operates in periodic cycles alternating between light therapy frames and non-light therapy frames. The shutter glasses open during light therapy frames to maximize therapeutic light exposure and close during non-light therapy frames to enable normal viewing, creating a rhythmic pattern that maintains both therapy effectiveness and viewing experience
Solution Approach 2:
The system dynamically switches between two operational modes: light therapy mode where shutters are open and light therapy images are displayed, and normal viewing mode where shutters are closed and regular images are displayed. This dynamic switching enables the system to adapt between therapeutic and viewing functions without interruption
Data Source
AI summary
A display apparatus includes a display; an image processor which generates a first image including sequential first frame data and a second image including sequential second frame data; an image data generator which generates image data comprising the first frame data and the second frame data alternately; and a control signal generator which generates a shutter glasses control signal that opens shutters for both eyes of a first pair of shutter glasses when the first frame data is displayed on the display, and that closes the shutters for both eyes of the first pair of shutter glasses when the image data including the second frame data is displayed on the display.