Integrated Optical Plate for 3D Display Thickness Reduction
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Solution Overview
Problem
The manufacturing process of optical plates for 3D display apparatuses is complex and costly, and the resulting display devices are thick due to the need for polarizing plates on both surfaces, which complicates alignment and increases production time and expenses.
Innovation Solution
An optical plate comprising a polarizing layer and a phase delaying layer with specific patterns that delay the phase of polarized light by 3λ/4 and λ/4, respectively, is used, simplifying the manufacturing process and reducing the thickness of the display apparatus by integrating the phase delaying layer directly onto the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If polarizing spectacles are used for 3D display, then manufacturing cost is reduced and display quality is improved, but the optical plate must be attached on the display panel without misalignment which increases manufacturing complexity
Solution Approach 1:
The patent combines the optical plate with the display panel into a single integrated structure. The optical plate is formed directly on the display panel through coating and patterning processes, eliminating the need for separate attachment and alignment operations. This merging resolves the contradiction by reducing manufacturing complexity while maintaining the cost advantages of polarizing spectacles.
Solution Approach 2:
The optical plate is formed preliminarily during the display panel manufacturing process itself, rather than as a separate post-processing step. The phase delaying layer is coated and patterned on the polarizing plate before final assembly, ensuring proper alignment is built-in from the start. This preliminary action eliminates subsequent alignment operations and reduces manufacturing complexity.
2Productivity
If various processes such as coating, exposing, aligning are used to manufacture the optical plate, then the optical plate can be produced, but time and costs for manufacturing processes are increased
Solution Approach 1:
The patent merges the optical plate manufacturing processes with the display panel manufacturing processes. The polarizing plate and phase delaying layer are formed in the same production line using integrated coating and patterning equipment. This consolidation eliminates separate manufacturing steps and reduces total manufacturing time while maintaining productivity.
Solution Approach 2:
The optical plate is segmented into functional layers (polarizing plate and phase delaying layer) that can be formed separately but integrated in the same manufacturing process. This segmentation allows each layer to be optimized for its specific function while being produced efficiently in sequence during the overall manufacturing process.
3Adaptability or versatility
If the optical plate is combined with the display panel having the polarizing plates attached to both surfaces, then the 3D image can be displayed, but the thickness of the display apparatus is increased
Solution Approach 1:
The patent merges the optical plate with the display panel structure, forming the optical plate directly on the display panel surface. This integration eliminates the need for separate optical plate components and reduces the overall thickness of the display apparatus while maintaining full 3D display capability through the polarizing and phase delaying functions.
Solution Approach 2:
The optical plate uses thin film structures for the polarizing plate and phase delaying layer that can provide the necessary optical functions with minimal thickness. These thin films are deposited directly on the display panel, enabling 3D display functionality without significantly increasing the overall device thickness.
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
This solution enhances alignment reliability, reduces production costs, and decreases the thickness of the display apparatus, while maintaining high display quality by simplifying the manufacturing process and improving productivity.
Implementation Method 1
The phase delaying layer is disposed on the polarizing plate, and includes first and second patterns. The first pattern delays a phase of the polarized light by 3λ/4, and the second pattern delays the phase of the polarized light by λ/4.
Data Source
AI summary
In the optical plate and a method of manufacturing the optical plate, a display apparatus and a method of manufacturing the display apparatus, an optical plate is formed on a polarizing plate transmitting polarized light of incident light, and includes a phase delaying layer having first and second patterns. The first pattern delays a phase of the polarized light by 3λ/4 and the second pattern delays the phase of the polarized light by λ/4. Accordingly, a process of manufacturing the display apparatus may be simplified, and a thickness of the display apparatus may be decreased.