Piezoelectric Isolation Column Height Matching for Display Newton Rings
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Solution Overview
Problem
The mismatch in height between the glass encapsulation glue and the isolation column in display devices leads to a non-planar shape of the encapsulation cover plate, resulting in an optical path difference and the occurrence of Newton ring phenomena, which adversely affects the display effect.
Innovation Solution
A display structure comprising an encapsulation sidewall, isolation columns made of piezoelectric material, and a processing module that applies voltage signals to the isolation columns to match their height with the encapsulation sidewall, eliminating the height difference and reducing or eliminating Newton rings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If glass encapsulation glue is used for encapsulation, then the encapsulation structure is formed, but the height of the encapsulation glue cannot match the height of the isolation column, resulting in a non-planar encapsulation cover plate and Newton ring phenomenon
Solution Approach 1:
The patent changes the physical state of the isolation column from static to dynamic by applying voltage signals. The isolation column height is adjusted by controlling the deformation of piezoelectric material through voltage application, allowing the height parameter to be dynamically tuned to match the encapsulation glue height, thereby eliminating the height mismatch problem while maintaining manufacturing simplicity
Solution Approach 2:
The isolation column is designed with piezoelectric material that can dynamically change its height in response to voltage signals. This dynamic adjustment capability allows the system to adapt the isolation column height to match the encapsulation glue height, resolving the height matching issue without complicating the manufacturing process
2Object-affected harmful factors
If the encapsulation cover plate is stuck on a non-planar surface, then encapsulation is achieved, but optical path difference occurs between reflected light from substrate and encapsulation cover plate, causing Newton ring phenomenon
Solution Approach 1:
The patent applies voltage signals to change the height parameter of the isolation column, which directly affects the planarity of the encapsulation cover plate surface. By adjusting the isolation column height to match the encapsulation glue height, the surface becomes planar, eliminating optical path differences and the resulting Newton ring phenomenon
Solution Approach 2:
The patent converts the potential harm of height mismatch into a beneficial solution by using the deformable piezoelectric isolation column. The voltage-controlled deformation allows precise height adjustment, transforming the manufacturing challenge into a controllable parameter that ensures planarity and prevents optical interference patterns
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 eliminates the Newton ring phenomenon by controlling the deformation of isolation columns using voltage signals, improving the display effect and simplifying the production process while reducing production costs and increasing efficiency.
Implementation Method 1
the at least one isolation column is made of a piezoelectric material
Data Source
AI summary
This disclosure relates to a display and a method of fabricating the display. According to some embodiments, the display may comprise: an encapsulation sidewall; at least one isolation column adjacent to the encapsulation sidewall; and a processing module coupled with the at least one isolation column, configured to apply a voltage signal to the at least one isolation column according to a height of the encapsulation sidewall, such that the at least one isolation column deforms.