Compact Display Integrating Touch and Solar Power via Shared Insulating Layer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices that integrate solar batteries to generate power and provide touch sensor functions become bulky, making them unsuitable for mobile applications like smartphones.
Innovation Solution
A display device configuration that includes a light emitting element, an insulating layer, a detecting element with a semiconductor diode sandwiched between electrodes, and a connection section to switch between touch sensor and light power generation functions using a detection circuit, allowing for compact integration of both functionalities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a solar battery is integrated into the display device using a separate panel configuration, then the display device can provide light power generation function, but the entire display device increases in size
Solution Approach 1:
The patent merges the solar battery structure with the display device structure by forming the solar battery as an integrated component within the display device housing, rather than as a separate panel. This integration allows the solar battery to share structural space with the display device, eliminating the need for additional separate panels and thereby preventing size increase while maintaining light power generation functionality.
Solution Approach 2:
The display device is designed to perform multiple functions including display, touch sensing, and light power generation within a single integrated structure. The solar battery is configured to work concurrently with the display and touch sensor functions, allowing one device to serve multiple purposes without requiring separate dedicated components for each function.
2Adaptability or versatility
If multiple functions (touch sensor, solar battery) are integrated into the display device, then the display device can provide diverse functionalities, but the device complexity increases
Solution Approach 1:
The patent divides the integrated structure into distinct functional regions: a display region for light emission and a non-display region for housing the solar battery. This segmentation allows each function to operate independently within its designated area while maintaining overall integration, reducing the complexity of coordinating multiple functions sharing the same space.
Solution Approach 2:
The solar battery is positioned in the non-display region, utilizing spatial dimensionality to separate functions vertically or laterally rather than overlapping them in the same plane. This dimensional arrangement simplifies the structural design by avoiding complex layering or interference between the display and power generation components.
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 the display device to maintain a compact size while incorporating touch sensor and light power generation functions, addressing the size increase issue of previous integrated designs.
Implementation Method 1
a panel for electricity generation using a solar battery
Implementation Method 2
a panel for performing display using an organic light emitting diode (OLED)
Data Source
AI summary
A display device includes a light emitting element having a light emitting region in a display region of the display device, an insulating layer covering the light emitting element, a detecting element including a first electrode, a second electrode, and a semiconductor layer having a diode characteristic sandwiched between the first electrode and the second electrode and arranged on the insulating layer, and a first connection section configured to connect the first electrode and the second electrode to a detection circuit, the detection circuit inputting a driving signal to the first electrode so that a reverse voltage is generated in the semiconductor layer and acquiring a response signal generated at the second electrode in response to the driving signal.