Stacked Display Device Brightness Adjustment for Color Distortion
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Solution Overview
Problem
Stacked display devices with color filters experience brightness degradation due to multiple color filters, leading to color distortion when compared to monochrome panels, which affects the stereoscopic effect in image display.
Innovation Solution
A stacked display device comprising a color panel with a color filter and a monochrome panel without a color filter, where a processor adjusts the brightness of the monochrome panel's image based on the transmittance ratio and pixel values to minimize color distortion while maintaining image brightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a color panel including a color filter is used in a stacked display device, then color display capability is improved, but brightness is degraded due to the color filter
Solution Approach 1:
The display device is divided into multiple panels (first panel, second panel, third panel) with different functions. The first panel (color panel) handles color display, while the second and third panels (monochrome panels) handle brightness and stereoscopic effect, allowing each panel to specialize and avoid the trade-off between color and brightness
Solution Approach 2:
The system uses a composite structure combining color panels and monochrome panels in a stacked configuration. This composite approach allows the color panel to provide color information while monochrome panels provide high brightness, achieving both color accuracy and brightness without using a single panel type that would compromise one aspect
2Adaptability or versatility
If multiple color filters are stacked to achieve stereoscopic effect, then depth perception is improved, but brightness is significantly reduced
Solution Approach 1:
The stereoscopic display function is segmented from the color display function. Monochrome panels dedicated to stereoscopic effect are stacked separately from color panels, allowing the stereoscopic panels to operate without color filters that would reduce brightness, while color panels handle only color information
Solution Approach 2:
The solution moves from a single-panel approach to a multi-panel stacked architecture, adding the dimension of layer stacking. This allows different panel types to be combined vertically, with monochrome panels providing stereoscopic effect in one layer and color panels providing color in another layer, avoiding the brightness loss of stacking multiple color filters
3Illumination intensity
If monochrome panels without color filters are used, then brightness is improved, but color accuracy is degraded
Solution Approach 1:
The display functions are segmented by panel type: monochrome panels are dedicated to brightness and stereoscopic effect, while color panels are dedicated to color accuracy. This functional segmentation allows each panel type to optimize for its specific purpose without compromising the other
Solution Approach 2:
Multiple panel types are merged into a single stacked display system. The color panels and monochrome panels work together synergistically, with the color panels providing accurate color information and the monochrome panels providing high brightness and stereoscopic effect, achieving a combined performance that exceeds what either panel type could achieve alone
Data Source
AI summary
A stacked display device and a control method thereof are provided. The stacked display device includes a stacked display including a first panel and a second panel comprising a different transmittance from the first panel and a processor to obtain a first layer image to display an image on the first panel and a second layer image to display an image on the second panel, adjust brightness of the second layer image based on a ratio between a first transmittance for the first panel and a second transmittance for the second panel, and a pixel value of the second layer image, and control the stacked display to display the second layer image of which brightness is adjusted on the second panel while displaying the first layer image on the first panel.