Sensor Panel Apertures for Incident Light Sensing
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Solution Overview
Problem
Existing display apparatuses face limitations in accurately sensing incident light while operating in both capturing and displaying modes due to low resolution capabilities and issues with backlight non-uniformity, particularly when using external cameras or single large-format sensors.
Innovation Solution
A display apparatus comprising a display panel, a sensor panel with apertures, and a backlight unit, where the display panel selectively forms patterns to pass or block light, allowing the sensor panel to sense incident light without blocking the backlight, and the controller manages switching between capturing and displaying modes to optimize image acquisition and display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single large-format sensor is used to detect incident light, then the device complexity is reduced, but the measurement precision and image resolution are insufficient
Solution Approach 1:
The sensor panel is divided into multiple sensor units arranged in a matrix, where each sensor unit corresponds to a specific aperture. This segmentation allows the system to achieve high-resolution image capture while maintaining a relatively simple overall device structure, resolving the contradiction between device complexity and measurement precision.
2Measurement precision
If the display panel is controlled to generate MURA coding pattern, then the image data capturing is enhanced, but the displaying function is compromised and flickering occurs
Solution Approach 1:
The display panel alternates between displaying normal images and generating MURA coding patterns in periodic time slots. During capturing mode, the display panel generates MURA patterns for a brief period to enable high-quality image data acquisition, then switches back to normal displaying mode. This periodic switching resolves the contradiction by enabling high-quality capturing without permanently compromising the displaying function.
Solution Approach 2:
The system pre-allocates specific time slots for capturing mode before users experience flickering or display issues. By performing the MURA pattern generation in advance during designated capturing intervals, the system ensures high-quality image acquisition while maintaining normal display functionality during user viewing periods.
3Measurement precision
If the sensor units block light, then the incident light sensing is improved, but the backlight uniformity is degraded
Solution Approach 1:
The sensor panel is designed with a matrix of discrete sensor units, each associated with specific apertures, rather than a continuous light-blocking structure. This local quality approach allows light to pass through non-sensor regions, maintaining backlight uniformity while enabling precise incident light sensing at specific locations where sensor units are positioned.
4Measurement precision
If the capturing mode uses extended time period, then the image data quality is improved, but the productivity and response time are reduced
Solution Approach 1:
The system implements periodic capturing intervals with MURA pattern generation followed by rapid switching back to displaying mode. This periodic action enables sufficient image data acquisition during capturing slots while maintaining high productivity during displaying slots, resolving the contradiction between image quality and response time.
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
Enables simultaneous image capturing and displaying with improved resolution and reduced ambient light effects, providing a more intuitive user experience, such as maintaining eye contact during video calls and allowing gesture detection without compromising image quality.
Implementation Method 1
a sensor panel (107) configured to sense the incident first light
Implementation Method 2
a backlight unit (113) disposed behind the sensor panel (107) and configured to transfer light to the display panel (103)
Data Source
Figure 1A
Figure 1B
Figure 2A
AI summary
Provided is a display apparatus and method. The display apparatus may sense light reflected from an object and passed through a display panel, and may control a power of a backlight unit depending on whether the light has passed through the display panel.