Light Control Device Using Spatially Mapped Detection Units
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing light control devices lack intuitive operation methods for changing light transmittance, which limits their usability and efficiency in applications requiring dynamic light control.
Innovation Solution
A light control device comprising a light control sheet with regularly arranged light control units and a detection sheet with regularly arranged detection units, where a driving unit outputs change signals to associated light control units based on detected inputs, allowing for intuitive changes in light transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If light control devices use conventional operation methods, then light transmittance can be changed, but the operation lacks intuitiveness and reduces usability
Solution Approach 1:
The patent uses a detection sheet with detection units that are arranged in the same regularity as the light control units. Each detection unit corresponds to and detects input at the position of its associated light control unit, creating a direct spatial mapping between input location and control target. This copying of the arrangement pattern enables intuitive operation without complex control systems.
Solution Approach 2:
The detection sheet acts as an intermediary between the user's input and the light control units. The detection units detect external input (such as touch or proximity) and the light control processing unit associates each detection unit with its corresponding light control unit, translating the detected input into appropriate control signals. This intermediary layer simplifies the interface while maintaining direct positional correspondence.
2Measurement precision
If light control devices use conventional control methods, then light transmittance can be adjusted, but accuracy in controlling specific regions is reduced
Solution Approach 1:
The light control sheet is divided into multiple independent light control units, each capable of independently changing its light transmittance. The detection sheet is similarly segmented into detection units. This segmentation allows precise control of specific regions by associating each detection unit with its corresponding light control unit, enabling accurate regional control while maintaining ease of operation through direct positional mapping.
Solution Approach 2:
The detection units are arranged in the same regularity and pattern as the light control units, creating a one-to-one correspondence between detection locations and control targets. This copying of the spatial arrangement ensures that input detected at any position directly controls the light transmittance at the corresponding position, achieving both precision and usability.
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 intuitive operation for changing light transmittance by associating input detection with corresponding light control units, enhancing usability and accuracy in light control applications.
Implementation Method 1
Liquid crystal-type light control sheets reversibly change the orientation of liquid crystal molecules between a light-scattering state and a light-transmitting state, depending on the size of the electric field applied to the liquid crystal molecules
Implementation Method 2
Electrochromic-type light control sheets reversibly promote redox reactions depending on the size of the electric field applied to the light control sheet, and changes the light absorption rate with the progress of the redox reactions
Data Source
AI summary
A light control device including a light control sheet including light control units each reversibly change light transmittance and positioned according to a first arrangement that has a regularity, a detection sheet including detection units each detect external input and positioned according to a second arrangement that has a regularity same as the regularity of the first arrangement, a driving unit that outputs to each of the light control units a change signal for changing light transmittance, and a light control processing unit which associates each of the detection units with at least one of the light control units, and causes the driving unit to output the change signal to the light control unit associated with the detection unit that has detected the external input.