Color Filter Substrate Manufacturing via Stacked Pillar Drawing
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Solution Overview
Problem
Conventional methods for manufacturing color filter substrates are time-consuming and complex due to multiple stages of patterning processes in photolithography, making them unsuitable for high-resolution applications.
Innovation Solution
A method involving the formation of pillar-shaped members, stacking, and forming a preform by inserting them into a cane, followed by a drawing process to create a stick member, which is then sliced to produce a color filter substrate with a circular, elliptical, or polygonal shape, using materials like glass or plastic with light-shielding cores and portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If photolithography technique is used to manufacture color filter substrate, then color filter substrate can be produced, but manufacturing time is long and process operation is complicated
Solution Approach 1:
The patent divides the color filter substrate into multiple separate color filter members (red, green, blue) that are formed independently through drawing processes and then stacked together. This segmentation allows each color filter to be manufactured separately using simpler processes, avoiding the complex multi-stage photolithography patterning while achieving the same functional result of creating a color filter substrate with precise color separation and positioning.
2Manufacturing precision
If photolithography technique is used to manufacture color filter substrate, then color filter substrate can be produced, but manufacturing time is long
Solution Approach 1:
The patent forms the color filter members in advance using drawing processes that create the colored filters and light-shielding portions simultaneously in a single step. The preliminary formation of these members with integrated color and pattern structures eliminates the need for sequential photolithography steps, significantly reducing manufacturing time while maintaining the precision required for high-resolution display applications.
3Productivity
If conventional manufacturing method is used, then color filter substrate can be produced, but it is not suitable for high resolution
Solution Approach 1:
The patent replaces the photolithography mechanical system with a drawing process system that uses mechanical pulling and thermal treatment to form color filter members. This substitution enables better control over the formation of light-shielding portions and color filter shapes, achieving higher resolution capability while improving manufacturing efficiency through a streamlined process that eliminates multiple photolithography stages.
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 approach simplifies the manufacturing process, reducing complexity and time, enabling the production of color filter substrates suitable for high-resolution display devices with improved efficiency.
Implementation Method 1
forming a stick member from the preform via a drawing process by applying heat to the preform inserted into the cane
Data Source
AI summary
A method of manufacturing a color filter substrate includes: forming a plurality of first members, a plurality of second members and a plurality of third members, where each of the first members, the second members and the third members has a pillar shape extending in a direction; stacking the first members, the second members and the third members on one another; forming a preform by inserting the stacked first members, second members, and third members into a cane; forming a stick member from the preform via a drawing process by applying heat to the preform inserted into the cane; and slicing the stick member.