Color Resist Slits for Uniform Cell Gap in Slim LCD Frames
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In liquid crystal display devices, reducing the distance between the peripheral edge of the panel and the color resist dot-patterned area leads to uneven gaps between the TFT and CF substrates due to sealant infiltration, causing cell gap failure, especially in slim frames.
Innovation Solution
Forming slits in the color resist coated area allows the sealant to flow easily and prevents it from being trapped between the substrates, ensuring a uniform gap by modifying the sealant application area and structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the distance between the peripheral edge of the panel and the color resist dot-patterned area is reduced to make the frame slimmer, then the frame thickness is reduced, but the gap between the TFT substrate and the CF substrate becomes uneven due to sealant infiltration
Solution Approach 1:
The color resist coated area is segmented by forming slits that divide it into multiple regions. This segmentation allows the sealant to flow through the slits rather than infiltrating laterally under the color resist, preventing gap unevenness while enabling slim frame design.
Solution Approach 2:
The slits act as intermediary channels that guide the sealant flow in a controlled manner. By providing these intermediate pathways, the sealant can be directed to flow uniformly without causing lateral infiltration that would create uneven gaps, thus mediating between the slim frame requirement and gap uniformity requirement.
2Stability of the object's composition
If the color resist coated area is positioned near the effective display area to stabilize the SOCs, then the SOC stability is improved, but the sealant infiltration causes uneven gaps in slim frame configurations
Solution Approach 1:
By segmenting the color resist coated area with slits, the structure maintains its stabilizing function for SOCs while preventing uncontrolled sealant infiltration. The slits create defined pathways that allow sealant passage without compromising the overall structural stability provided by the color resist coated area.
3Length of moving object
If the sealant is applied to a slim frame area, then the frame can be made slimmer, but the sealant gets trapped between the substrates causing cell gap failure
Solution Approach 1:
The slits extract or remove the problematic lateral infiltration path of the sealant by providing vertical flow channels instead. This extraction of the infiltration pathway prevents sealant from being trapped between substrates, maintaining cell gap consistency even in slim frame configurations.
Solution Approach 2:
The slits serve as intermediary flow channels that mediate the sealant application process. They provide a controlled pathway for sealant to traverse the color resist coated area without getting trapped, enabling slim frame design while maintaining reliability.
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 provides a uniform cell gap between the TFT and CF substrates, preventing cell gap failure and enabling the production of slim frame liquid crystal display devices without defects.
Implementation Method 1
the color resist coated area overlapping the seal area has slits formed therein
Data Source
AI summary
A liquid crystal display device having a uniform gap between a TFT substrate and a CF substrate even in cases where a sealant is to be applied to a slim frame formed on the outside of the effective display area is provided. A liquid crystal display device includes an effective display area, a color resist coated area, and a seal area which overlaps the color resist coated area and in which a sealant for sealing liquid crystal is provided, wherein the color resist coated area overlapping the seal area has slits formed therein.