Post Spacer Sub-pillows Prevent Sliding in LCD Panels
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Solution Overview
Problem
The existing single-piece support pad design for post spacers in liquid crystal display devices is prone to sliding under pressure, leading to uneven liquid crystal cell gaps and Mura faults such as 'black gap' defects, which compromise the quality of the display product.
Innovation Solution
A post spacer design featuring a support post with multiple sub-pads dispersedly arranged around its bottom, providing uniform stress distribution and an antiskid effect to prevent sliding and ensure stable support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a single-piece support pillow is used, then the supporting effect is enhanced, but the support post may slide away under pressure causing uneven liquid crystal cell gap
Solution Approach 1:
The support pillow is divided into multiple sub-pillows (at least two) that are dispersedly arranged below the support post instead of using a single-piece design. This segmentation allows the support post to be supported at multiple discrete points, distributing the load and preventing sliding while maintaining the supporting effect.
2Manufacturing precision
If support pillows are dispersedly arranged, then stress distribution is uniform and antiskid effect is provided, but device complexity increases
Solution Approach 1:
The support pillow structure is segmented into multiple sub-pillows arranged in a specific pattern below the support post. This segmentation achieves uniform stress distribution and prevents sliding, while the sub-pillows can be formed through standard photolithography and etching processes in the display panel manufacturing workflow.
Solution Approach 2:
Multiple sub-pillows are strategically positioned at specific locations below the support post to create localized support points. This local quality approach ensures uniform stress distribution across the support post base while maintaining a relatively simple overall structure that can be integrated into the display panel fabrication process.
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 effectively balances pressure on the support post, enhances the supporting effect, and significantly reduces or eliminates Mura faults, thereby improving the uniformity of the liquid crystal cell gap and the overall quality of the display product.
Implementation Method 1
transfer a force applied on the display panel to the support post through the dispersedly arranged support pillows
Implementation Method 2
the bottom of the support post can be more uniformly stressed
Implementation Method 3
the support pillows can further provide a certain antiskid effect
Data Source
AI summary
The present invention relates to the technical field of display, and in particular to a post spacer, a display panel and a display device. The post spacer includes a support post and a support pillow, wherein the support pillow is formed of a plurality of sub-pillows dispersedly arranged below the bottom of the support post. Since the post spacer is provided with the support pillows dispersedly arranged below the bottom of the support post, the bottom of the support post can be more uniformly stressed, and the support pillow can further provide a certain antiskid effect. Therefore, the post spacer of the present invention has a better supporting effect and can effectively avoid Mura faults.