Detachable Digitizer Panel for Thin Laptop Design
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Solution Overview
Problem
Conventional digitizer displays embedded in laptop PCs are not optimally utilized, as they are not popular for input due to being an excess function for users not requiring pen input, and they hinder downsizing and weight reduction, with direct operation on objects on the display being inconvenient.
Innovation Solution
An electronic device with a detachable digitizer panel and a housing made of electromagnetic wave transmissive materials, allowing the digitizer panel to be mounted on the back or placed around the device for operation with an electronic pen, enabling input on a touch screen without embedded digitizer functions, thus expanding the use range and facilitating thickness and weight reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a digitizer display is embedded in the laptop PC, then direct operation on objects on the display becomes convenient, but the device thickness and weight increase
Solution Approach 1:
The digitizer panel is separated from the main device body and made as a detachable component. Users can attach it only when pen input functionality is needed, rather than having it permanently embedded in the device structure.
Solution Approach 2:
The digitizer panel transitions from a static embedded state to a dynamic detachable state, allowing it to be mounted or removed based on usage requirements, enabling flexibility in device configuration.
2Ease of operation
If a digitizer display is embedded in the laptop PC, then direct operation on objects on the display becomes convenient, but the device thickness increases
Solution Approach 1:
The digitizer panel is segmented as a separate detachable component rather than being integrated into the main device structure, allowing the device to maintain a thinner profile when the digitizer is not in use.
3Weight of moving object
If a digitizer panel is detachably mounted, then the device thickness and weight are reduced, but direct operation on objects on the display becomes inconvenient
Solution Approach 1:
The system automatically detects when the digitizer panel is attached and enables the appropriate input mode, eliminating the need for manual configuration and making the transition between operating modes seamless for the user.
4Duration of action of stationary object
If digitizer functions are embedded in the display, then the digitizer can be used continuously, but the device cannot be downsized
Solution Approach 1:
The digitizer panel is divided as a separate detachable component that can be attached only when needed, allowing the main device to maintain a compact size while still providing digitizer functionality on demand.
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 flexible use of the digitizer panel according to the environment and user needs, allowing precise input with an electronic pen while reducing the device's thickness and weight, and automatically recognizing the panel's size for proper alignment and operation.
Implementation Method 1
a housing having electromagnetic wave transmissivity for housing the display
Implementation Method 2
The sensor coil receives an electromagnetic wave oscillated by resonance through electromagnetic wave energy which the resonance circuit of the input pen received from the sensor coil
Data Source
AI summary
A digitizer panel for input with an electronic pen is detachably attached a laptop PC. The laptop PC includes a touch screen housed in a display housing. The display housing is formed of material having electromagnetic wave transmissivity such as GFRP or CFRP. On the back face of the display housing, an electromagnetic induction type digitizer panel can be detachably attached. The digitizer panel and the laptop PC are able to wirelessly communicate with each other. When the digitizer panel is attached, an electronic pen is brought close to the touch screen for input. When the digitizer panel is not attached, the electronic pen is directly brought close to the digitizer panel for input.