Micro Light Modulator Array for Adaptive Display Contrast
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Solution Overview
Problem
Conventional transparent display panels experience deteriorated display contrast in high ambient light conditions, such as outdoors, leading to increased power consumption when brightness is enhanced for better image visibility.
Innovation Solution
A display apparatus with an array of micro light modulators on the panel that adaptively modulate light intensity based on the luminance level of the image displayed, using mechanisms like micro mirrors and adaptive control circuits to dynamically adjust light emission, thereby enhancing contrast without uniform modulation across regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the brightness of the transparent display panel is enhanced to improve image visibility in high ambient light conditions, then the display contrast is improved, but the power consumption increases
Solution Approach 1:
The display panel is divided into multiple regions, each with its own micro light modulator that independently controls light intensity. This segmentation allows different regions to have different brightness levels according to their specific viewing conditions and image content, rather than uniformly increasing brightness across the entire panel, thus improving contrast where needed while minimizing power consumption.
Solution Approach 2:
Each region of the display panel is equipped with adaptive light modulation capabilities that adjust light intensity based on local conditions such as ambient light levels and image luminance requirements. This local quality approach ensures that only necessary regions consume additional power for brightness enhancement, rather than the entire panel consuming maximum power.
2Illumination intensity
If an array of micro light modulators is added to the display panel to dynamically adjust light intensity, then display contrast is enhanced, but device complexity increases
Solution Approach 1:
The micro light modulators are integrated directly into the display panel structure, merging the light modulation function with the display structure. This integration approach reduces the need for separate external components and complex wiring, thereby enhancing display contrast while minimizing the increase in overall device complexity.
Solution Approach 2:
The micro light modulators serve multiple functions: they control light intensity for contrast enhancement, regulate power consumption, and adapt to different viewing conditions. This multi-functionality reduces the need for additional separate components, thereby achieving improved display performance without proportionally increasing device complexity.
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 significantly enhances display contrast by dynamically adjusting light intensities according to image luminance, reducing power consumption and improving visibility in bright environments.
Implementation Method 1
each of the plurality of micro light modulators M is configured to adaptively modulate a first light intensity of first light L1 emitted out of a light emitting side of the display panel 10
Data Source
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AI summary
A display apparatus. The display apparatus includes a display panel (10) having a plurality of subpixels; and an array of a plurality of micro light modulators (M) on the display panel (10) and configured to adaptively modulate display contrast of the display apparatus. Each of the plurality of micro light modulators (M) is configured to adaptively modulate a light intensity of light emitted out of a light emitting side of the display panel in a region corresponding to each of the plurality of micro light modulators (M) based on a luminance level of a current image displayed in the region.