Camera Under Display Pixel Control for Image Quality
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Camera-under-display technologies face challenges in maintaining image quality due to light emission from pixels in the camera area, leading to undesirable situations like hidden operation buttons or text boxes, which can cause user errors.
Innovation Solution
An information processing apparatus with a processor that controls light emission of pixels based on display data, performing a display stop process to stop light emission in the camera area when the camera is active and restoring display when the user's operation position is within that area, allowing the camera area to be displayed with reduced light or in a pop-up screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the camera is placed near the rear face of the display to capture light passing through the screen area, then the device size can be reduced, but the image quality deteriorates due to light emission interference from pixels in the camera area
Solution Approach 1:
The display area is segmented into a camera area (first area) and a non-camera area. The processor selectively controls light emission only in the camera area corresponding to the camera's angle of view, while maintaining normal display functionality in other areas. This segmentation allows the camera to capture images through the display without interference from pixel light emission in the camera area.
Solution Approach 2:
Different display modes are applied to different regions of the display. In the camera area, pixels are controlled to be non-displayed (black state) when the camera is active, while in non-camera areas, pixels continue to emit light for normal display purposes. This local quality differentiation resolves the conflict between camera functionality and display visibility.
2Measurement precision
If pixels in the camera area are controlled to be non-displayed to improve image quality, then light emission interference is reduced, but user operation becomes difficult because operation buttons or text boxes in the camera area are hidden
Solution Approach 1:
The display mode of the camera area is dynamically adjusted based on user interaction. When the processor detects that the user is operating within the camera area (through touch input or cursor position), it automatically switches the camera area from non-display mode to display mode, allowing users to see and operate on visible targets. This dynamic switching resolves the contradiction between image quality and ease of operation.
Solution Approach 2:
The system incorporates feedback mechanisms to detect user operation positions (through touch sensors or cursor tracking). Based on this feedback, the processor determines whether to activate or deactivate display in the camera area. This feedback loop ensures that the display adapts to user needs, providing visibility when users need to operate and maintaining image quality when users are not interacting.
3Measurement precision
If the camera area is displayed with reduced light emission, then image quality is improved while maintaining some visibility, but the brightness and visibility are compromised compared to full display mode
Solution Approach 1:
The processor controls the light emission parameter of pixels in the camera area to be in a black state (minimal or zero light emission) when the camera is active. This parameter change ensures that the camera can capture images through the display without interference from pixel light emission, while the display can still function in other areas with normal brightness.
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 solution improves image quality by preventing light emission interference with the camera and ensures users can operate on visible targets, reducing the likelihood of errors by appropriately controlling the display based on the camera's state and user interaction.
Implementation Method 1
a camera near the rear face of the display to capture an image based on light incident through the display
Implementation Method 2
a display having a screen area with an array of a plurality of pixels; a processor that controls light emission of a plurality of pixels of the display
Data Source
AI summary
The information processing apparatus includes a display having a screen area with an array of a plurality of pixels and a camera near the rear face of the display to capture an image based on light incident through the display. The information processing apparatus stops emission of light from pixels in a first area corresponding to a position in the screen area of the display where the camera is placed and control the pixels to be non-displayed, and when the operation position within the screen area of the display is within the first area, displays an image based on the display data corresponding to the first area in any part of the screen area of the display.