Display Panel Laser Pointer Positioning via Light Sensors
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Solution Overview
Problem
Current display devices cannot position a laser pointer light source effectively, limiting interaction between users using different laser pointers.
Innovation Solution
A method involving obtaining position and photosensitive information of laser projection points on a display panel using a light sensor, performing weighted calculations to determine target position information, and utilizing this data to position the laser pointer light source, thereby distinguishing between different laser pointers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If display devices use traditional laser pointer detection methods, then the device structure remains simple, but the ability to position and distinguish different laser pointer light sources is lost
Solution Approach 1:
The display panel serves multiple functions: it displays images and simultaneously detects laser pointer light source positions through integrated light sensors. This multi-functionality allows the display device to position laser pointers without adding separate dedicated detection hardware, resolving the contradiction between measurement precision and device complexity.
Solution Approach 2:
The display device uses its own light sensors to detect and position laser pointer light sources, eliminating the need for external positioning devices. The system performs self-positioning by utilizing existing components, thereby achieving accurate positioning without increasing overall device complexity.
2Adaptability or versatility
If display devices integrate light sensors for laser positioning, then laser pointer positioning capability is improved, but device complexity increases
Solution Approach 1:
The light sensors are integrated into the display panel to perform dual functions: detecting ambient light for display optimization and detecting laser pointer positions for interactive control. This multi-functional integration enhances laser pointer interaction capability while avoiding the need for separate dedicated positioning hardware.
Solution Approach 2:
The patent combines the laser positioning function with the existing display panel structure by integrating light sensors into the same substrate. This merging of functions allows the device to handle multiple tasks (display and positioning) through a unified structure, reducing overall complexity compared to having separate systems.
3Adaptability or versatility
If multiple laser pointers are used for interaction, then user interaction versatility is improved, but the ability to distinguish and position individual pointers deteriorates
Solution Approach 1:
The display panel is divided into multiple pixel regions, each with associated light sensors that can independently detect laser light. This segmentation allows the system to distinguish and position multiple laser pointers by identifying which specific pixel regions receive light from which pointers, enabling accurate multi-pointer differentiation.
Solution Approach 2:
The light sensors act as intermediaries between multiple laser pointers and the display system. Each sensor detects light intensity and position information from different pointers, translating optical signals into position data that enables the system to distinguish and track multiple individual pointers simultaneously with high precision.
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 effective positioning of laser pointer light sources, allowing users to interact using different pointers by determining target position information through sensor data and calculations.
Implementation Method 1
obtaining first photosensitive information of the laser pointer light source at the first laser projection position of the display panel and second photosensitive information of the laser pointer light source at the second laser projection position of the display panel; wherein the first position information, the second position information, the first photosensitive information, and the second photosensitive information are obtained by a light sensor of the display panel
Data Source
AI summary
A method of positioning a laser pointer light source and a display device are provided. The method of positioning the laser pointer light source includes obtaining first position information and second position information of the laser pointer light source, obtaining first photosensitive information and second photosensitive information, and determining target position information. The present invention determines the target position information according to the first position information, the second position information, the first photosensitive information, and/or the second photosensitive information, which positions the laser pointer light source and distinquishes the laser pointer light source at different positions.