Liquid Crystal Display Infrared Detection Layer Remote Control
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Solution Overview
Problem
Conventional liquid crystal displays with touch panel functions require physical contact, which can be inconvenient for large-sized displays or situations like teaching or speeches, necessitating a solution for remote control operation.
Innovation Solution
Incorporating an infrared detection layer within the liquid crystal display system that uses visible and infrared light beams to enable remote control functionality without the need for a touch panel, allowing for precise detection of irradiated positions using a light beams generator and external driving circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touch panel is mounted on the liquid crystal panel to enable touch control function, then the liquid crystal display can be physically contacted for input, but the operation becomes inconvenient in situations such as large-sized displays, teaching classes, or speeches
Solution Approach 1:
The patent removes the touch panel component from the liquid crystal display structure. Instead of requiring physical contact through a touch panel, the system uses an infrared detection layer integrated into the liquid crystal panel to detect remote control signals, thereby eliminating the touch panel structure while enabling remote operation
Solution Approach 2:
The patent replaces the mechanical touch control system with an optical/infrared-based detection system. The infrared detection layer captures infrared signals from a remote control device, converting mechanical touch input into optical signal detection, which enables remote operation without physical contact
2Ease of manufacture
If a touch panel is used for input control, then physical contact can be detected, but additional components such as adhesive and touch panel structure are required
Solution Approach 1:
The patent extracts and removes the touch panel component and associated adhesive from the liquid crystal display assembly. The infrared detection layer is directly integrated into the liquid crystal panel structure, eliminating the need for separate touch panel components and adhesive materials
Solution Approach 2:
The patent merges the infrared detection function with the liquid crystal panel structure itself. The infrared detection layer is integrated directly into the panel, combining multiple functions (display and infrared detection) into a single integrated structure, thereby reducing the total number of components and materials required
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 remote control operation of liquid crystal displays without physical contact, providing a convenient and accurate control method that eliminates the need for a touch panel and adhesive, enhancing usability for various applications.
Implementation Method 1
a liquid crystal display that includes an infrared detection layer... the infrared detection layer being arranged at the color filter substrate
Data Source
AI summary
An exemplary liquid crystal display includes a thin film transistor (TFT) substrate, a color filter substrate opposite to the TFT substrate, and a liquid crystal layer sandwiched between the TFT substrate. The color filter substrate includes a plurality of color units and a first infrared detection layer arranged between the color units. The first infrared detection layer is configured to detect infrared light beams irradiating thereon and determine an irradiated position thereof. A remote control display system employing the liquid crystal display is also provided.