Head-Mounted Display Touch Screen Input Integration
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Solution Overview
Problem
Head-mounted display systems require additional input devices for controlling functions like volume, brightness, and image settings, which increases weight, manufacturing costs, and limits design flexibility.
Innovation Solution
Integration of a touch screen surface on the display device that functions as both an input and image display area, allowing users to control the head-mounted device without external input devices by dividing the touch screen into active and non-active regions for input sensing and image display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If additional input devices are provided on the head-mounted device, then control functionality is improved, but weight and device complexity increase
Solution Approach 1:
The patent combines the input device functions with the existing display device by integrating a touch screen surface into the display panel. The touch screen surface includes both an image display region and an input sensing region, allowing the display device to serve dual purposes as both output and input interface, thereby eliminating the need for separate physical buttons or input devices on the head-mounted device.
Solution Approach 2:
The display device is designed to perform multiple functions: it displays images through the image display region while simultaneously receiving user inputs through the input sensing region of the touch screen surface. This multi-functionality allows a single component to replace what would traditionally require separate input devices, reducing overall device complexity and weight.
2Ease of operation
If additional input devices are provided on the head-mounted device, then control functionality is improved, but manufacturing cost increases
Solution Approach 1:
The patent merges the input device functionality into the existing display device structure. The touch screen surface is integrated with the display panel, sharing common components such as the substrate, transparent electrodes, and encapsulation layers. This integration eliminates the need for separate manufacturing processes for additional input devices, reducing overall manufacturing cost.
Solution Approach 2:
By designing the display device to perform both display and input functions, the patent reduces the total component count and simplifies the manufacturing process. The same touch screen structure serves dual purposes, avoiding the need for separate input device assemblies and their associated manufacturing steps.
3Ease of operation
If additional input devices are provided on the head-mounted device, then control functionality is improved, but design flexibility is limited
Solution Approach 1:
The patent combines input and display functions into a single integrated touch screen display device, reducing the number of separate components and simplifying the overall device structure. This integration eliminates the need for additional input devices mounted on the head-mounted device frame, thereby maintaining design flexibility.
Solution Approach 2:
The display device is designed as a multi-functional component that serves both as an image display interface and an input sensing interface. This universality reduces device complexity by eliminating redundant components and simplifying the overall system architecture, while still providing comprehensive control functionality.
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 control of head-mounted device functions without additional input devices, reducing weight and manufacturing costs while enhancing design freedom by using the display device's touch screen for both input and image display.
Implementation Method 1
the touch screen surface includes an active region which displays an image on the touch screen surface and senses a user input
Data Source
AI summary
A head-mounted display system may include a display device and a head-mounted device. The display device includes a touch screen surface exposed to an outside and including an active region which displays an image and senses a user input. The head-mounted device includes a frame, in which a reception space allowing the display device to be mounted therein is defined, and an optical system disposed in the frame. The active region of the display device includes a first active region, which is exposed to the outside and receives the user input for controlling the head-mounted device, when the display device is coupled with the head-mounted device.