Dual-Vision Liquid Crystal Panel with Integrated Black Matrix Grating
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Solution Overview
Problem
Dual-vision liquid crystal display technology faces challenges in increasing viewing angle and reducing thickness and cost, primarily due to manufacturing difficulties caused by the need for precise alignment of slit gratings and substrates, which often result in increased thickness and complexity.
Innovation Solution
A liquid crystal panel design where the liquid crystal layer is positioned between the color filter layer and the black matrix grating, eliminating the need for an extra transparent layer and allowing for a closer distance between these components, thereby enhancing the viewing angle and reducing the overall thickness and cost of the display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a slit grating is attached on the outside of the display panel to achieve dual-vision display, then different images can be displayed for different viewers, but the device thickness increases and manufacturing complexity increases due to precise alignment requirements
Solution Approach 1:
The patent merges the slit grating structure with the liquid crystal panel by integrating the black matrix grating into the opposing substrate and positioning the liquid crystal layer between the color filter layer and black matrix grating. This combination eliminates the need for separate external attachments and reduces overall device thickness while maintaining dual-vision functionality.
Solution Approach 2:
The patent implements a nested structure where the liquid crystal layer is positioned within the space between the color filter layer and black matrix grating. This nested arrangement allows multiple functional layers to occupy overlapping spatial regions, reducing the overall thickness of the display device while preserving all necessary functions.
2Adaptability or versatility
If a slit grating is attached on the outside of the display panel to achieve dual-vision display, then different images can be displayed for different viewers, but the manufacturing precision requirements increase due to alignment difficulties
Solution Approach 1:
The patent combines the grating structure with the substrate by forming the black matrix grating directly on the opposing substrate. This integration eliminates the need for separate alignment between external gratings and substrates, significantly reducing manufacturing precision requirements while maintaining dual-vision display functionality.
Solution Approach 2:
The patent performs preliminary positioning by disposing the liquid crystal layer at a predetermined distance from the color filter layer and black matrix grating during the manufacturing process. This preliminary action ensures proper alignment is achieved during assembly, reducing the need for post-manufacturing adjustment and improving manufacturing precision.
3Adaptability or versatility
If the liquid crystal layer is positioned closer to the color filter layer and black matrix grating, then the viewing angle increases, but the manufacturing precision requirements increase
Solution Approach 1:
The patent specifies a predetermined distance range (3 to 4 micrometers) between the liquid crystal layer and the color filter layer/black matrix grating during manufacturing. This preliminary specification of dimensional parameters allows for optimized viewing angle while providing clear manufacturing guidelines to control the distance, balancing performance with manufacturability.
Solution Approach 2:
The patent optimizes the distance parameter between the liquid crystal layer and adjacent layers to achieve improved viewing angle. By carefully controlling this dimensional parameter within a specific range, the patent enhances optical performance while maintaining feasibility for manufacturing processes.
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
This configuration significantly increases the viewing angle of the dual-vision display while minimizing the thickness and cost, by allowing a larger angle between emitted light and the normal, thus reducing crosstalk and enhancing the dual-visioning experience.
Implementation Method 1
a liquid crystal layer disposed between the opposing substrate and the array substrate
Implementation Method 2
an upper polarizer, an lower polarizer
Implementation Method 3
a black matrix grating disposed on one side of the upper base substrate, which side faces the array substrate
Data Source
AI summary
A liquid crystal panel and a dual-vision crystal display device can increase the viewing angle of the dual-vision crystal display device and reduce the thickness and cost of the dual-vision crystal display device. The liquid crystal panel includes an opposing substrate, an array substrate and a liquid crystal layer disposed between the opposing substrate and the array substrate; the opposing substrate includes: an upper polarizer, an upper base substrate disposed on one side of the upper polarizer, which side faces the array substrate, and a black matrix grating disposed on one side of the upper base substrate, which side faces the array substrate; the array substrate includes: an lower polarizer, an lower base substrate disposed on one side of the lower polarizer, which side faces the opposing substrate, and a color filter layer disposed on one side of the lower base substrate, which side faces the opposing substrate; and the liquid crystal layer is disposed between the color filter layer and the black matrix grating.