Transparent Display Partition Plate Liquid Crystal Alignment
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Solution Overview
Problem
Conventional transparent display devices, particularly those using IPS or FFS modes, have high power consumption due to maintaining a transparent state only when a voltage is applied, limiting their application range and requiring significant energy usage.
Innovation Solution
A transparent display device with alternately arranged transparent and display areas, separated by a partition plate, utilizes positive and negative liquid crystals with initial longitudinal axes perpendicular to each other, allowing the transparent area to remain transparent without voltage application, reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If IPS mode or FFS mode is used to achieve wide viewing angle and high contrast, then display quality is improved, but the transparent area requires continuous voltage application to maintain transparency, resulting in high power consumption
Solution Approach 1:
The display device is divided into multiple independent domains: transparent areas and display areas, each with separate liquid crystal configurations. Partition plates are introduced to create distinct liquid crystal regions that can be independently controlled, allowing the transparent area to maintain transparency without voltage while the display area uses voltage for image display.
Solution Approach 2:
Different liquid crystal configurations are applied to different areas of the display device. The transparent area uses liquid crystal with vertical initial alignment (normally white mode) that maintains transparency without voltage, while the display area uses liquid crystal with horizontal initial alignment (normally black mode) that requires voltage for display, optimizing each area for its specific function.
2Stability of the object's composition
If voltage is continuously applied to maintain transparent state, then transparency is preserved, but power consumption increases significantly
Solution Approach 1:
Instead of using the conventional approach where voltage is required to maintain transparency (IPS/FFS modes), the patent inverts the approach by using liquid crystal with vertical initial alignment in the transparent area, which naturally maintains transparency without voltage. The voltage is applied only when display function is needed, reversing the conventional control logic.
Solution Approach 2:
The liquid crystal in the transparent area with vertical initial alignment automatically maintains the transparent state without requiring external voltage application. The system serves itself by utilizing the natural properties of the liquid crystal material to maintain transparency, eliminating the need for continuous power supply to the transparent area.
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 enables the transparent display device to maintain a transparent state for extended periods with low power consumption, meeting consumer requirements and achieving energy savings.
Implementation Method 1
An initial direction of longitudinal axis of the liquid crystal in the transparent area is substantially perpendicular to an initial direction of longitudinal axis of the liquid crystal in the display area
Implementation Method 2
each of the transparent areas and the display area neighboring therewith have a partition plate disposed therebetween. The partition plate is connected between the first substrate and the second substrate and for separating liquid crystals corresponding to the transparent area and the display area
Data Source
AI summary
The invention provides a transparent display device including a lower polarizer, a first substrate, a liquid crystal layer, a second substrate and an upper polarizer sequentially stacked in that order. On a direction parallel to an image display plane of the transparent display device, the transparent display device includes multiple transparent areas and multiple display areas alternately arranged with the transparent areas. In the liquid crystal layer, each transparent area and the display area neighboring therewith have a partition plate disposed therebetween. The partition plate is connected between the first substrate and the second substrate and for separating liquid crystals corresponding to the transparent area and the display area. An initial direction of longitudinal axis of the liquid crystal in the transparent area is perpendicular to an initial direction of longitudinal axis of the liquid crystal in the display area.