Electrochromic Protective Layer for Touch Screen Operation
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Solution Overview
Problem
Conventional protective cases for portable devices do not provide adequate protection for touch screens and often require users to lift a flip-type cover, increasing the device's volume and decreasing convenience.
Innovation Solution
A color-changeable protective device with an electro-chromic element and solar-powered power supply that can switch between transparent and opaque states, allowing direct operation of the touch screen without removing the protective case, and integrating with the device's outer case for comprehensive protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a flip-type protective cover is used to protect the touch screen, then the touch screen is protected from impact and scratches, but the device volume increases and user convenience decreases due to the need to lift the cover for operation
Solution Approach 1:
The patent extracts the protective function from a separate physical cover and integrates it into a transparent protective layer that is permanently attached to the touch screen. This eliminates the need for a movable flip cover while maintaining protection, thereby reducing device volume and improving user convenience.
Solution Approach 2:
The protective layer is merged with the touch screen assembly, forming an integrated structure where the protective function is combined with the display surface. This integration eliminates the need for separate protective covers and reduces overall device complexity and volume.
2Object-affected harmful factors
If a flip-type protective cover is used to protect the touch screen, then the touch screen is protected from impact and scratches, but user convenience decreases due to the need to lift the cover for operation
Solution Approach 1:
The patent removes the need to lift or remove a cover by integrating the protective function directly into the touch screen assembly. Users can operate the touch screen directly through the transparent protective layer, eliminating the inconvenience of manually opening/closing covers.
Solution Approach 2:
A transparent protective layer serves as an intermediary between the user's input device and the touch screen, allowing direct contact and operation while maintaining protection. This intermediary layer eliminates the need for users to physically open or remove a protective cover.
3Object-affected harmful factors
If conventional protective cases are used for the portable device, then the outer layers are protected from damage, but the cases lack special circuit functions and provide limited protection for the touch screen
Solution Approach 1:
The patent merges the protective case with the touch screen assembly and integrates circuit functions directly into the protective structure. This creates a multi-functional integrated component that provides both physical protection and electronic functionality, enhancing adaptability and versatility.
Solution Approach 2:
The protective case is designed to perform multiple functions: protecting the outer layers, protecting the touch screen, and providing circuit functions. This multi-functional design eliminates the need for separate protective accessories and enhances overall device versatility.
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 direct operation of the touch screen through the protective case while providing protection for both the outer layer and touch screen, maintaining device compactness and enhancing user convenience.
Implementation Method 1
an electro-chromic element configured to correspond to the touch screen so as to entirely cover the touch screen. Also, according to whether an operating status of the electro-chromic element is a power-on status, the whole electro-chromic element appears to be at a transparent state or an opaque state
Implementation Method 2
The power supply device includes a solar cell
Data Source
AI summary
A color-changeable protective device for a portable device equipped with a touch screen is provided. The color-changeable protective device comprises a power source and a electro-chromic element. The electro-chromic element is disposed to correspond to the touch screen so as to cover the entire touch screen. According to whether the operating status of the electro-chromic element is a power-on operating status, the electro-chromic element appears to be transparent or opaque.