Sealing Frame Adhesive Thickness Control in Display Panels
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Solution Overview
Problem
The mismatch between the height of the sealing frame adhesive and the spacer column in liquid-crystal display panels leads to deformation of the glass substrate and inconsistency in liquid crystal heights, resulting in display unevenness.
Innovation Solution
A display panel design that includes a sealing frame assembly with particulate media in the adhesive layer, where electrodes define different electrical fields to adjust the thickness of the adhesive layer, ensuring consistent liquid crystal heights and even display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the sealing frame adhesive is used to support and seal the liquid crystal display panel, then the panel structure is formed, but the height mismatch between the sealing frame adhesive and spacer column causes glass substrate deformation and display unevenness
Solution Approach 1:
The patent introduces particulate media into the sealing frame adhesive layer, which can change their arrangement state in response to electrical field changes. This allows the adhesive layer thickness to be dynamically adjusted by changing the physical state parameters of the particulate media, thereby compensating for height mismatches and ensuring consistent liquid crystal heights across the display panel.
Solution Approach 2:
The patent replaces traditional mechanical thickness adjustment methods with an electrical field-based control system. By applying electrical fields to control the particulate media in the adhesive layer, the system achieves precise thickness control without mechanical intervention, thereby improving manufacturing precision while maintaining ease of manufacture.
2Manufacturing precision
If the sealing frame adhesive layer thickness is increased to match spacer column height, then liquid crystal height consistency is improved, but the device complexity increases
Solution Approach 1:
The sealing frame adhesive layer is designed to serve multiple functions: it provides structural sealing, supports the liquid crystal layer, and simultaneously acts as an adjustable thickness element through the particulate media. This multi-functionality reduces the need for separate components, thereby maintaining device simplicity while achieving precise liquid crystal height control.
Solution Approach 2:
The particulate media within the sealing frame adhesive layer can self-adjust their arrangement in response to electrical field changes, automatically controlling the adhesive layer thickness. This self-service mechanism eliminates the need for complex external control systems, maintaining device simplicity while achieving precise thickness control for consistent liquid crystal heights.
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 adjusts the thickness of the sealing frame adhesive layer using particulate media responsive to electrical fields, addressing display unevenness and improving the overall display quality by maintaining consistent liquid crystal heights across the panel.
Implementation Method 1
The at least one first electrode and the at least one second electrode are used to define different preset electrical fields, and the particulate media are deflected or expanded or contracted under action of the different preset electrical fields to adjust a thickness of the sealing frame adhesive layer
Data Source
AI summary
A display panel, a manufacturing method of the display panel, and a display apparatus with the display panel are provided in the disclosure. The display panel includes a first substrate assembly, a second substrate assembly, a sealing frame assembly located between the first substrate assembly and the second substrate assembly. The sealing frame assembly includes at least one first electrode, at least one second electrode, and a sealing frame adhesive layer located between the at least one first electrode and the at least one second electrode. Particulate media are disposed in the sealing frame adhesive layer. The at least one first electrode is disposed at one side of the sealing frame adhesive layer facing the first substrate assembly, and the at least one second electrode is disposed at one side of the sealing frame adhesive layer facing the second substrate assembly.