Flexible LCD Spacing Retaining Wall for Cell Gap Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing liquid crystal panels face issues with uneven cell gaps when bent, leading to abnormal display effects due to the misalignment and flow of liquid crystal material, which affects display brightness, contrast, and response speed.
Innovation Solution
A flexible liquid crystal panel design featuring a spacing retaining wall with transverse and longitudinal parts that interlace to form sub-pixels, along with a UV and heat curing complex seal glue, is used to stabilize the cell gap and prevent liquid crystal flow, employing flexible plastic substrates and a manufacturing method that includes photo processing and transfer printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If Photo Spacer is used to control the Cell Gap in LCD, then the Cell Gap is kept even in plane state, but the Cell Gap becomes uneven when the panel is bent
Solution Approach 1:
The spacing retaining wall is divided into multiple segments including transverse parts and longitudinal parts that interlace to form a grid pattern. This segmentation allows the structure to flexibly accommodate bending while maintaining cell gap uniformity across different regions of the panel.
Solution Approach 2:
The spacing retaining wall is constructed using composite materials that combine rigidity to maintain cell gap with flexibility to accommodate panel bending. The interlaced structure of transverse and longitudinal parts creates a composite framework that preserves cell gap evenness while enabling flexible display applications.
2Adaptability or versatility
If the liquid crystal panel is bent, then flexible display is achieved, but the TFT substrate and CF substrate become misaligned and liquid crystal material flows
Solution Approach 1:
The spacing retaining wall is pre-formed on the CF substrate before the liquid crystal material is injected. This preliminary structure guides the liquid crystal material distribution and maintains cell gap uniformity even when the panel is subsequently bent, preventing substrate misalignment issues.
Solution Approach 2:
The spacing retaining wall acts as an intermediary structure between the TFT substrate and CF substrate. It maintains the relative positioning of these substrates during bending by providing a rigid yet flexible framework that prevents direct misalignment while allowing the panel to flex.
3Adaptability or versatility
If the liquid crystal material flows during bending, then the panel achieves flexibility, but the Cell Gap becomes uneven at various positions
Solution Approach 1:
The spacing retaining wall provides localized support at critical positions within the liquid crystal layer. The interlaced transverse and longitudinal parts create multiple localized regions that maintain cell gap uniformity in different areas of the panel during bending, preventing overall cell gap unevenness.
Solution Approach 2:
The spacing retaining wall is designed as a flexible thin film structure that can accommodate panel bending while maintaining its spacing function. This flexible shell-like structure prevents liquid crystal material flow and maintains cell gap uniformity across the entire panel during flexible display operation.
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 maintains even cell gaps in bent liquid crystal panels, enhancing their adaptability for flexible displays by stabilizing the cell gap and preventing liquid crystal flow, thus improving display quality.
Implementation Method 1
the seal glue is UV curing and heat curing complex glue
Implementation Method 2
the seal glue is UV curing and heat curing complex glue
Implementation Method 3
the spacing retaining wall is manufactured by photo process
Data Source
AI summary
The present invention provides a flexible liquid crystal panel and a manufacture method thereof. The flexible liquid crystal panel comprises a first, a second flexible substrates (1, 3) oppositely located, a first, a second flat layers (11, 31) respectively located at an inner sides of the first, the second flexible substrates (1, 3), a color filter layer (33) located between the second flexible substrate (3) and the second flat layer (31), a spacing retaining wall (5) located on the second flat layer (31), seal glue (7) coated on a side of the spacing retaining wall (5) close to the first flexible substrate (1) and a liquid crystal layer (9); the spacing retaining wall (5) comprises a plurality of transverse parts (51) parallel with one another extending transversely and a plurality of longitudinal parts (53) parallel with one another extending longitudinally, and the transverse parts (51) and the longitudinal parts (53) interlace with one another to separate a plurality of sub pixels, and the liquid crystal layer (9) is filled in closed districts formed by the transverse parts (51) and the longitudinal parts (53) interlacing with one another.