Lens Substrate Single Mask Patterning for 2D 3D Display
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Solution Overview
Problem
The manufacturing process for lens substrates in stereoscopic image display apparatuses is complex and costly, particularly in producing lens panels that can effectively display both 2D and 3D images.
Innovation Solution
A lens substrate with a layered structure of transparent conductive and metal layers, where signal lines and electrodes are formed using a single mask, simplifying the manufacturing process and reducing costs by integrating the formation of signal lines, pad electrodes, and lens electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate masks are used to form signal lines and lens electrodes, then manufacturing precision can be maintained, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the formation of signal lines and lens electrodes into a single masking step. The mask simultaneously defines both the signal line patterns and lens electrode patterns, eliminating the need for separate masking processes. This merging reduces manufacturing complexity and cost while maintaining the required structural precision through unified pattern design.
2Productivity
If multiple manufacturing steps are used to form signal lines and electrodes, then manufacturing precision is improved, but productivity decreases
Solution Approach 1:
The single mask serves multiple functions by simultaneously defining both signal lines and lens electrodes. This multi-functional approach allows one masking step to produce multiple structural elements, thereby increasing productivity without sacrificing precision. The unified mask design ensures that all patterns are formed with consistent precision standards applied across all features.
3Ease of manufacture
If complex manufacturing processes are used, then manufacturing precision is maintained, but manufacturing cost increases
Solution Approach 1:
By merging the formation of signal lines and lens electrodes into a single masking process, the patent reduces the total number of manufacturing steps, thereby lowering manufacturing cost. The unified mask approach maintains precision by applying consistent patterning standards to all features formed in the single step, eliminating the cumulative errors that would arise from multiple separate steps.
Data Source
AI summary
A lens substrate includes a base substrate, a first lens electrode and a first signal line. The base substrate includes a lens area and a peripheral area surrounding the lens area. The first signal line in the peripheral area and includes a layered structure in which a first transparent conductive layer and a metal layer directly contact each other. The first lens electrode is in the lens area and includes the first transparent conductive layer excluding the metal layer. The first signal line is in the peripheral area. The first signal line is connected to the first lens electrode and includes a layered structure in which the first transparent conductive layer and the metal layer directly contact each other.