Display Panel Pixel Segmentation for Simultaneous Light and Proximity Sensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current display panels cannot perform ambient light detection, proximity sensing, or ambient light charging while in display mode, as they require a whole panel switch to different functions, leading to inconvenience.
Innovation Solution
A method that utilizes a display panel with PN junction units and a driving circuit to allocate parts of the panel for display functions and other functions like ambient light detection, proximity sensing, or ambient light charging, allowing these functions to be performed simultaneously with display mode through mode switching and blanking time utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display panel switches to detection or sensing mode, then ambient light detection or proximity sensing function is enabled, but the display function is lost
Solution Approach 1:
The display panel is divided into multiple independently controllable pixel regions. The driving circuit can selectively activate different pixel groups for different functions - some pixels display images while others perform ambient light detection or proximity sensing. This spatial segmentation allows simultaneous operation of display and detection functions without requiring full panel mode switching.
2Adaptability or versatility
If the display panel performs multiple functions simultaneously, then versatility is improved, but device complexity increases
Solution Approach 1:
The display panel pixels are designed with multi-functionality, where each pixel can operate in different modes (display, ambient light detection, proximity sensing) based on driving circuit control. The same hardware structure serves multiple purposes, eliminating the need for separate dedicated sensors and reducing overall device complexity despite enhanced functionality.
Solution Approach 2:
The driving circuit employs periodic time-division multiplexing to switch between different functions for different pixel groups. By alternately activating display modes and detection modes in a periodic cycle, the system achieves multi-functionality while using a single unified control architecture, thereby managing complexity through rhythmic operation patterns.
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 the display panel to perform ambient light detection, proximity sensing, or ambient light charging while in display mode, enhancing usability by integrating multiple functions into a single device.
Implementation Method 1
providing a display panel, wherein the display panel comprises a plurality of pixels with PN junctions units
Data Source
AI summary
The present invention provides a method for ambient light detection, proximity sensing, and ambient light charging applied to a panel. The method includes: providing a display panel, wherein the display panel comprises a plurality of pixels with PN junctions units in a display area; and providing a driving circuit, wherein the driving circuit drives each display pixel or each PN junction unit through a display mode, a standby mode, and a blanking time, so that part of each display pixel or each PN junction unit is used to perform a display function and part of each display pixel or each PN junction unit is used to carry out the ambient light detection, proximity sensing, or ambient light charging.