Touch Input Device Light Emitting Circuit Control
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Solution Overview
Problem
Existing touch panel input devices for adjusting sound volume, air-conditioner temperature, and room light brightness in vehicles require complex display control and are costly, making them difficult to use intuitively.
Innovation Solution
An input device with a manipulation surface, a light emitting circuit, and a detection circuit, where the light emitting circuit has a first segment group that emits light at a low intensity when no input is received and at a higher intensity when input is possible, and the second segment group emits light in response to finger actions, facilitating easy and intuitive input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the pointer portion and manipulation portion are displayed individually on a touch panel, then the device can indicate desired point targets, but the display control becomes complex and costly
Solution Approach 1:
The patent merges the pointer portion and manipulation portion into a single integrated indicator displayed along the linear scale. Instead of displaying separate pointer and manipulation elements, the invention uses one unified visual indicator that serves both functions: showing current position and responding to touch input along the entire scale length, thereby simplifying display control while maintaining indication accuracy
Solution Approach 2:
The linear scale with a single indicator serves multiple functions simultaneously: it acts as both the pointer indicator and the manipulation interface. The indicator can be touched at any position along the scale to select corresponding values, eliminating the need for separate pointer and manipulation zones and reducing display complexity
2Measurement precision
If the pointer portion is used to indicate desired point targets, then point target selection is achieved, but smooth and intuitive input for adjustment operations becomes difficult
Solution Approach 1:
The invention transforms the static pointer indication into a dynamic interaction along the linear scale. The indicator responds dynamically to touch inputs at different positions, allowing users to smoothly adjust values by touching anywhere along the scale. This dynamic behavior makes the interface more intuitive for adjustment operations while maintaining precise point target indication
3Measurement precision
If a touch panel displays separate pointer and manipulation portions, then point target indication is possible, but the device becomes costly to manufacture
Solution Approach 1:
The patent reduces manufacturing costs by merging multiple display elements into a single linear scale with one indicator. Instead of requiring separate graphical elements for pointers and manipulation zones, the invention uses a simplified single indicator that can be implemented with fewer display resources, reducing manufacturing complexity and cost while maintaining target indication accuracy
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
The solution simplifies display control, reduces costs, and enables intuitive input for adjusting vehicle settings by using a light emitting circuit and detection circuit to indicate input readiness and track finger movements, enhancing user experience.
Implementation Method 1
a light emitting circuit which is disposed along the manipulation surface and can emit prescribed light
Data Source
AI summary
An input device includes a manipulation surface, a light emitting circuit disposed along the manipulation surface, and a detection circuit configured to detect an action of a finger on the manipulation surface. The light emitting circuit has first and second segment groups. The second segment group is disposed along the first segment group. The first segment group emits light at a first intensity if the detection circuit is restricted to receive a prescribed input. The first segment group emits light at a second intensity if the detection circuit is allowed to receive the prescribed input. A part of the second segment group emits light if the detection circuit detects an action of the finger alongside the first segment group while the first segment group is emitting light at the second intensity.