3D Display Substrate Lens Array Integration via Refractive Index Contrast
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Solution Overview
Problem
Conventional lenticular lens 3D display devices face challenges in alignment accuracy and production efficiency due to the separate attachment of the lens layer on the liquid crystal display panel, which also increases production costs.
Innovation Solution
A 3D display substrate with a base substrate, a color filter layer, and an optical structure layer featuring a first and second light-transmitting layer with different refractive indices, forming a concave-convex interface to create a lens array structure directly on the substrate, eliminating the need for attachment and improving alignment accuracy and production efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the lens layer is separately attached on the liquid crystal display panel through an attachment process, then the 3D display device can be assembled, but the alignment accuracy between the lens layer and the display panel deteriorates due to attachment accuracy limitations
Solution Approach 1:
The patent merges the lens layer with the display panel by forming the lens array structure directly on the color filter substrate during the manufacturing process. This integration eliminates the separate attachment process, ensuring precise alignment between the lens array and pixel array without being limited by attachment accuracy, thereby resolving the technical contradiction between manufacturing precision and device complexity.
2Productivity
If the lens layer is separately attached on the liquid crystal display panel, then the 3D display device can be assembled, but the production efficiency deteriorates and production cost increases
Solution Approach 1:
The patent combines the lens array structure formation with the existing color filter substrate manufacturing process. By forming the lens array directly on the color filter substrate before assembling with the array substrate, the patent eliminates the need for separate lens attachment processes, thereby improving production efficiency and reducing manufacturing costs through process integration.
Solution Approach 2:
The patent performs the lens array structure formation in advance during the color filter substrate manufacturing process, before the final assembly of the display device. This preliminary action allows the lens array to be pre-formed and aligned with the pixel array, eliminating the need for complex alignment and attachment operations during final assembly, thus improving production efficiency and reducing costs.
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 enhances alignment accuracy and production efficiency while reducing costs by integrating the optical structure directly onto the substrate, allowing for effective 3D display without the need for separate lens layer attachment.
Implementation Method 1
The optical structure layer includes a first light-transmitting layer and a second light-transmitting layer having different refractive indices. An interface between the first light-transmitting layer and the second light-transmitting layer is of a concave-convex structure, so as to enable one of the first light-transmitting layer and the second light-transmitting layer to form a lens array structure for 3D display.
Data Source
AI summary
The present disclosure provides a 3D display substrate, its manufacturing method and a 3D display device. The 3D display substrate includes a base substrate, a color filter layer arranged on the base substrate, and an optical structure layer arranged on the base substrate and at a light-exiting side of the color filter layer. The optical structure layer includes a first light-transmitting layer and a second light-transmitting layer having different refractive indices. An interface between the first light-transmitting layer and the second light-transmitting layer is of a concave-convex structure, so as to enable one of the first light-transmitting layer and the second light-transmitting layer to form a lens array structure for 3D display.