Infrared Detection Window With Infrared Ink Layer
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Solution Overview
Problem
Current display devices lack an efficient and simple method to incorporate an infrared ray detection area into their design, which is essential for various applications including foldable, rollable, and bendable displays.
Innovation Solution
A display device with a window structure that includes a base layer, a first print layer with an opening, a first ink layer containing infrared ink, and a second ink layer with white ink, where the white ink composition includes specific compounds, and an infrared ray sensor, allowing for infrared ray detection while maintaining a simple manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional window structure is used without infrared detection capability, then the manufacturing process remains simple, but the device lacks infrared ray detection functionality
Solution Approach 1:
The patent combines the infrared detection function with the existing window structure by integrating an infrared-transparent layer and an infrared sensor within the window's multi-layer configuration. This merging approach allows the window to serve dual purposes: maintaining its protective and display functions while simultaneously enabling infrared ray detection, thus resolving the contradiction between adding functionality and increasing complexity.
Solution Approach 2:
The window structure is designed to perform multiple functions: it serves as a protective cover, a display element carrier, and an infrared detection component. By making the window universal and multi-functional, the patent avoids the need for separate dedicated infrared detection components, thereby adding versatility without proportionally increasing overall device complexity.
2Adaptability or versatility
If an infrared detection area is added to the window, then the device functionality is enhanced, but the manufacturing process becomes more complex
Solution Approach 1:
The infrared-transparent layer and sensor integration are incorporated into the window structure during the initial manufacturing stages, rather than as a separate post-processing step. This preliminary action allows the infrared detection components to be formed simultaneously with other window layers through coordinated printing and lamination processes, thereby enhancing functionality while maintaining manufacturing simplicity.
Solution Approach 2:
The patent utilizes specific material parameters, such as the infrared transparency of certain layers and the spectral properties of the ink layers, to enable infrared detection. By carefully selecting and controlling these material parameters, the invention achieves infrared detection capability through standard manufacturing processes without requiring complex additional steps.
3Adaptability or versatility
If multiple ink layers are used in the window structure, then the visual appearance and functionality are improved, but the number of manufacturing steps increases
Solution Approach 1:
The window structure is divided into functionally distinct layers, including a base layer, display element layer, infrared-transparent layer, and multiple ink layers with specific properties. This segmentation allows each layer to be optimized for its specific function while being manufactured through a coordinated multi-step process that maintains overall efficiency by forming layers in a logical sequence.
Solution Approach 2:
The patent employs composite material structures where different ink layers with specific optical and infrared properties are combined within the window. These composite layers are applied in a streamlined manner using printing techniques that can deposit multiple functional layers in sequence, thereby achieving enhanced functionality without proportionally reducing manufacturing productivity.
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 enables the creation of a display device with an infrared ray detection area, enhancing its functionality and versatility, particularly in flexible display formats, while ensuring a straightforward manufacturing process.
Implementation Method 1
a first ink layer that overlaps the opening and includes an infrared ink
Implementation Method 2
a second ink layer that overlaps the opening and includes a white ink
Data Source
AI summary
A display device according to an embodiment includes a substrate, a display element layer disposed on the substrate, and a window disposed on the display element layer. The window includes a display area and a peripheral area, wherein the window includes a base layer, a print layer disposed on a side of the base layer and including an opening, a first ink layer that overlaps the opening and includes an infrared ink, and a second ink layer that overlaps the opening and includes a white ink.