Image Display Apparatus Noise Suppression and Diffraction Correction
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Solution Overview
Problem
Existing image display apparatuses face issues with unique noise and diffraction phenomena when picking up images through the display section, leading to blurred images and high production costs due to the need for small, accurate lenses, and they struggle to capture sharp images of users from the front.
Innovation Solution
The image display apparatus includes a noise suppression processing unit and a diffraction correction unit, which synchronize display and image pickup timings and utilize signal processing to reduce reflection noise and correct diffraction effects, allowing for image pickup on the rear face side with improved image quality and reduced production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If very small light transmitting portions are provided between pixels to enable image pickup through the display section, then image pickup function is added, but diffraction phenomenon occurs causing image blurring and loss of sharpness
Solution Approach 1:
A light condensing section is introduced as an intermediary component between the light transmitting portions and the image pickup apparatus. This mediator collects and concentrates the diffracted light from multiple pixels onto the image pickup device, transforming the dispersed diffracted light into a focused image signal, thereby resolving the blurring caused by diffraction while maintaining the ability to pickup images through the display section
2Manufacturing precision
If very small lenses with high accuracy are provided for each opening to form accurate images, then image quality is improved, but production cost increases significantly
Solution Approach 1:
The invention extracts the image forming function from the individual pixel level and relocates it to the image pickup apparatus side. Instead of requiring each pixel to have precision lenses, the system uses light transmitting portions without complex optics and performs image formation through software processing and light condensing at the sensor level, dramatically reducing manufacturing complexity and cost while maintaining image accuracy
Solution Approach 2:
The mechanical optical system (precision lenses at each pixel) is replaced with a combination of simple light transmitting openings and computational/image processing methods. The image formation is achieved through the coordinated action of light condensing section and image pickup apparatus rather than through complex mechanical lens systems at each pixel, reducing manufacturing difficulty
3Adaptability or versatility
If image pickup is performed through the image display section, then additional functionality is achieved, but unique reflection noise appears on the picked up image
Solution Approach 1:
The system employs periodic alternation between display mode and image pickup mode. During image pickup, the display section temporarily stops displaying images and enters a black screen state, eliminating the reflection noise source. This periodic switching allows the same hardware to perform both display and image pickup functions without mutual interference, as the harmful reflection is eliminated during the pickup phase
Solution Approach 2:
Before performing image pickup, the system preliminarily stops the display output and transitions to a black screen state. This preliminary action removes the light source that would cause reflection noise during image pickup, ensuring clean image capture while still allowing the display section to serve its primary display function at other times
4Device complexity
If one light transmitting part is provided for multiple pixels to simplify structure, then device complexity is reduced, but sufficient light condensation on the image pickup apparatus becomes difficult
Solution Approach 1:
The system transitions from a one-to-one correspondence between light transmitting portions and pixels to a many-to-one relationship where multiple pixels contribute light through shared light transmitting portions. The light condensing section then collects this light from multiple spatial dimensions and concentrates it onto the image pickup apparatus, achieving sufficient light condensation while maintaining structural simplicity
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 effectively suppresses unique noise and diffraction phenomena, enabling the capture of sharp images of users from the front while reducing production costs by eliminating the need for high-accuracy small lenses and ensuring sufficient light condensation on the image pickup apparatus.
Implementation Method 1
a light condensing section configured to condense light transmitted through the light transmitting part on the image pickup apparatus
Implementation Method 2
carrying out, for image information acquired by the image pickup apparatus through the light transmitting part, a reflection noise suppression process for suppressing a reflection component of a display image on the image display section to the picked up image
Implementation Method 3
carrying out a diffraction correction process for suppressing an influence of a diffraction effect by the light transmitting part to be had on the image information acquired by the image pickup apparatus through the light transmitting part
Data Source
AI summary
Disclosed herein is an image display apparatus, including: an image display section including a plurality of pixels arrayed therein and each including a display element, the image display section allowing an image pickup section for image pickup to be arranged on the rear face side thereof, the image display section further including a light transmitting part provided in a region thereof corresponding to the image pickup section; and a noise suppression processing unit adapted to carry out, for image information acquired by the image pickup section through the light transmitting part, a reflection noise suppression process for suppressing a reflection component of a display image on the image display section to the picked up image.