Image Display Device with Segmented Pixel Regions for Sensor Transparency
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Solution Overview
Problem
Display panels with multiple layers cause light attenuation and modulation, leading to dark or blurred images when used with camera modules or other sensors, due to low visible light transmittance and effects like flare and diffraction.
Innovation Solution
An image display device with a pixel arrangement featuring distinct light emitting regions of varying transmittance, including a first region with high transmittance for sensors and a second region with low transmittance for image display, allowing for equal pixel luminance and minimizing light attenuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a camera module is arranged immediately below the display panel to capture subject light passing through the display panel, then the external size of the electronic apparatus can be made compact, but the captured image becomes dark or blurred due to light attenuation and modulation by the display panel layers
Solution Approach 1:
The display panel is divided into two distinct pixel regions: a first pixel region with low light transmittance for normal display function, and a second pixel region with high light transmittance for sensor light reception. This segmentation allows different parts of the display panel to serve different functions, resolving the contradiction between compact design and image quality.
Solution Approach 2:
Different pixel regions are assigned different light transmittance properties according to their specific functions. The second pixel region specifically optimized for high light transmittance enables reliable light reception by sensors, while the first pixel region maintains normal display characteristics. This local quality differentiation resolves the contradiction between compact size and reliable light reception.
2Adaptability or versatility
If the display panel is made transparent to allow light passage for sensors, then sensors can be arranged below the display panel, but the display quality and light emission capability are compromised
Solution Approach 1:
The display panel is segmented into first pixel regions for normal display function and second pixel regions for sensor transparency. This allows the panel to provide both display brightness and sensor light transmission capability simultaneously, resolving the contradiction between adaptability and illumination intensity.
Solution Approach 2:
The display panel achieves multi-functionality by incorporating both display function (first pixel regions) and sensor light transmission function (second pixel regions) within the same panel structure, eliminating the need for separate components and resolving the contradiction between versatility and brightness.
3Stability of the object's composition
If pixels near the boundary between first and second pixel regions emit light from high transmittance regions, then luminance uniformity is compromised, but if they emit from low transmittance regions, then light transmission to sensors is reduced
Solution Approach 1:
The light emission characteristics of pixels near the boundary are dynamically adjusted based on their position. Pixels closer to the first pixel region emit light with lower luminance to maintain uniformity, while pixels closer to the second pixel region emit with higher luminance to ensure sufficient light transmission to sensors. This dynamic adjustment resolves the contradiction between luminance uniformity and light transmission reliability.
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
The solution enhances image quality by maintaining equal luminance across different pixel regions and ensuring reliable light transmission for sensors, while reducing light attenuation and modulation, thus improving the reliability of light received or projected through the display surface.
Implementation Method 1
a first self-light emitting element that emits light from the first light emitting region; and a second self-light emitting element that emits light from the second light emitting region
Implementation Method 2
a third self-light emitting element that emits light from the third light emitting region
Data Source
AI summary
To prevent attenuation and modulation of light received or projected through a display surface.An image display device includes a plurality of pixels arranged two-dimensionally. A pixel in a first pixel region including some pixels among the plurality of pixels includes a first light emitting region, a second light emitting region having a higher visible light transmittance than the first light emitting region, a first self-light emitting element that emits light from the first light emitting region, and a second self-light emitting element that emits light from the second light emitting region, and a pixel in a second pixel region other than the first pixel region among the plurality of pixels includes a third light emitting region having a lower visible light transmittance than the second light emitting region, and a third self-light emitting element that emits light from the third light emitting region.