LCD Panel Seal Member Traversing Scribe Lines
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Solution Overview
Problem
The manufacturing process of TFT liquid crystal display modules faces challenges in cost reduction and efficient use of substrate dimensions, leading to difficulties in arranging product forming regions and resulting in waste due to standardized outside dimensions.
Innovation Solution
The configuration includes a liquid crystal display panel with a seal member that traverses scribe lines to position inlet port parts within product forming regions, allowing for increased product forming regions without reducing display area, and a flexible printed circuit board with wiring lines divided into groups to avoid protruding members, ensuring efficient connection and reducing connection faults.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the seal member is positioned to traverse scribe lines between product forming regions, then the number of product forming regions increases and substrate utilization improves, but the wiring lines on the flexible printed circuit board may contact the protruding members causing connection faults
Solution Approach 1:
The wiring lines are divided into multiple groups (first, second, and third groups) with different orientations. This segmentation allows the wiring lines to be arranged in a pattern that avoids contact with the protruding members while still achieving comprehensive electrical connections to the external connection terminals in the non-overlapping area.
Solution Approach 2:
The wiring lines are arranged in multiple directions (different orientations for different groups) rather than a single direction. This multi-dimensional arrangement enables the wiring lines to bypass the protruding members created by the seal member configuration, solving the connection reliability issue while maintaining the improved substrate utilization.
2Ease of manufacture
If the seal member is configured with inlet port parts extending towards the non-overlapping area, then the liquid crystal inlet port can be provided, but protruding members are created that may interfere with wiring line connection
Solution Approach 1:
The wiring lines are segmented into multiple groups with different orientations to navigate around the protruding members. This segmentation strategy allows the wiring system to maintain connection functionality while adapting to the modified seal member configuration that includes inlet port parts.
Solution Approach 2:
Different groups of wiring lines have different orientations and routing paths tailored to their specific connection needs. This local optimization allows certain wiring lines to bypass protruding members while others maintain direct connections, reducing overall arrangement complexity.
3Adaptability or versatility
If the TFT substrate has long sides longer than the CF substrate to create a non-overlapping area for mounting components, then component mounting is enabled, but the standardized outside dimensions make it difficult to arrange product forming regions efficiently
Solution Approach 1:
The seal member is configured to traverse the scribe lines between product forming regions and extend into the non-overlapping area. This dynamic positioning of the seal member allows it to adapt to the standardized substrate dimensions while still enabling efficient arrangement of multiple product forming regions, thereby improving substrate utilization efficiency.
Solution Approach 2:
The seal member serves multiple functions: it bonds the TFT substrate and CF substrate, provides the liquid crystal inlet port, and its protruding members define boundaries that work with the divided wiring line groups. This multi-functionality allows the same structural element to address both the component mounting requirement and the substrate utilization efficiency issue.
Data Source
AI summary
According to the present invention, the cost reduction of the liquid crystal display device can be achieved. The present invention includes a liquid crystal display panel including a seal member for bonding a first substrate and a second substrate with each other, a liquid crystal inlet port provided to a part of the seal member, and a liquid crystal material input into and encapsulated in a space between the first substrate and the second substrate and surrounded by the seal member, wherein the first substrate has first and second sides located opposite to each other, the first substrate has a non-overlapping area not overlapping the second substrate on the side of the first side of the first substrate, the liquid crystal inlet port is disposed on the side of the second side of the first substrate, the seal member has a first part disposed like a frame on a periphery of an area between the first substrate and the second substrate, and a pair of second parts respectively extending from the first part on both sides of the liquid crystal inlet port towards the second side of the first substrate, and the non-overlapping area of the first substrate is provided with a pair of protruding members made of the same material as the seal member.