Display Device Vibration Transmission via Non-Facing Region
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Solution Overview
Problem
Existing display devices with vibrating bodies between the touch panel and the display panel suffer from increased thickness due to the thickness of these components, leading to a larger overall device size.
Innovation Solution
The display device design places the vibrating body on the second substrate in a non-facing region, allowing it to be separated from the first substrate, thus preventing an increase in thickness and enabling a thinner form factor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a vibrating body is located between the touch panel and the display panel, then the user can feel a pushbutton switch effect, but the spacing between the touch panel and display panel becomes large due to the thickness of the vibrating body
Solution Approach 1:
The vibrating body is repositioned from a vertical arrangement (between touch panel and display panel) to a horizontal arrangement (on the rear surface of the display panel). This dimensional change allows the vibrating body to maintain its thickness without increasing the spacing between the touch panel and display panel, as the vibrating body now extends in the horizontal plane rather than the vertical direction.
2Ease of operation
If a vibrating body is located between the touch panel and the display panel, then vibration can be transmitted to the input region, but the overall thickness of the display device becomes large
Solution Approach 1:
The vibrating body is repositioned from a vertical arrangement contributing to overall thickness to a horizontal arrangement on the rear surface of the display panel. This dimensional change allows vibration transmission to the input region through the display panel while preventing the vibrating body's thickness from adding to the overall device thickness.
3Ease of operation
If the vibrating body is placed on the second substrate in the facing region, then vibration can be transmitted to the first substrate, but the thickness increases due to component overlap
Solution Approach 1:
The vibrating body is positioned in the non-facing region on the rear surface of the display panel, changing from a vertical arrangement to a horizontal arrangement. This allows vibration transmission to the input region through the display panel while preventing thickness increase, as the vibrating body no longer overlaps with the touch panel in the vertical direction.
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
This configuration allows for a thinner display device without compromising the vibration transmission to the input region, improving the device's overall thickness and usability.
Implementation Method 1
a vibrating body such as a piezoelectric element located between the touch panel and the upper substrate. In such display device, when a voltage is applied to the piezoelectric element, the piezoelectric element vibrates
Data Source
AI summary
A display device is disclosed. The display device includes first and second substrates, a display part, a vibrating body and a vibration transmission member. The first substrate includes a first inner primary surface and an outer primary surface opposing each other. The first substrate further includes a display region and an input region on the outer primary surface, and an input section. The second substrate includes a second inner primary surface that includes a facing region and a non-facing region. The facing region faces the first inner primary surface while the non-facing region does not face the first inner primary surface. The display part is located between the first substrate and the second substrate. The vibrating body is located in the non-facing region on the second substrate. The vibration transmission member is located between the first inner primary surface and the second inner primary surface.