Integrated 3D Grating and Touch Detection Unit
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Solution Overview
Problem
Current display devices with both touch and 3D functions are hindered by complex processes and large thickness due to separate manufacturing and assembly of capacitive touch screens and parallax barriers.
Innovation Solution
A display device with a 3D grating and touch detection unit integrated between a base substrate and the display panel, allowing for both touch detection and 3D display functionality using a single base substrate, thereby reducing thickness and process complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate capacitive touch screen and parallax barrier are assembled with display by adhering, then touch function and 3D display function are both achieved, but thickness becomes very large and processes become very complex
Solution Approach 1:
The patent merges the touch detection unit and 3D grating structure into a single integrated component formed between one base substrate and the display panel. This consolidation eliminates the need for separate assembly of touch screen and parallax barrier, thereby reducing overall thickness while maintaining both touch and 3D display functionalities.
Solution Approach 2:
The base substrate serves multiple functions: it acts as the foundation for the display panel, supports the 3D grating structure, and provides the framework for the touch detection unit. This multi-functionality reduces the number of separate components needed, thereby reducing thickness and simplifying the overall structure.
2Adaptability or versatility
If separate capacitive touch screen and parallax barrier are assembled with display by adhering, then touch function and 3D display function are both achieved, but processes become very complex
Solution Approach 1:
The patent combines the formation of the 3D grating and touch detection unit into a single integrated manufacturing process. Both structures are formed simultaneously between the base substrate and display panel, eliminating multiple separate assembly steps and significantly reducing process complexity.
Solution Approach 2:
The touch detection unit and 3D grating structure are formed in advance as integrated structures during the display panel manufacturing process, before final assembly. This preliminary integration simplifies subsequent manufacturing steps and reduces overall process complexity.
3Adaptability or versatility
If 4 glass substrates are required for traditional naked-eye 3D display, then 3D display function is achieved, but thickness becomes large and processes become complex
Solution Approach 1:
The single base substrate performs multiple functions that traditionally required four separate glass substrates: it serves as the structural foundation, supports the 3D grating structure for naked-eye 3D display, and provides the framework for touch detection. This consolidation reduces thickness while maintaining 3D functionality.
Solution Approach 2:
The patent merges multiple functional layers and structures into a single integrated assembly between one base substrate and the display panel, eliminating the need for four separate glass substrates. This integration maintains 3D display capability while significantly reducing overall thickness.
Data Source
AI summary
The present disclosure relates to the field of display technology and discloses a display device and a method for preparing the same. The display device includes a 3D grating and a touch detection unit. The 3D grating includes a base substrate arranged opposite to a display side of display panel, and a grating structure of the 3D grating and the touch detection unit are formed between the base substrate and the display panel.