Liquid Crystal Glass Transmissive Display with Ambient Light Backlighting
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Solution Overview
Problem
Current transmissive display apparatuses are limited by their inability to adjust brightness according to environmental light sources, lack of perspective functionality, and large volumes with poor transmittance, restricting their application range.
Innovation Solution
A display apparatus comprising a transmissive display panel, liquid crystal glass that can switch between transparent and atomization states, and a backlight module with a transparent polarizer film, allowing ambient light or illumination beams to serve as a backlight source, enabling perspective and non-perspective states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a backlight module is used to provide a stable light source, then the display can maintain consistent illumination, but the display cannot adjust brightness according to environmental light sources
Solution Approach 1:
The liquid crystal glass is designed to dynamically switch between transparent and atomization states based on environmental light conditions. When ambient light is strong, the glass transitions to transparent state to allow natural light through; when ambient light is weak, it transitions to atomization state to block external light and enable controlled backlight illumination, thus adapting the display to varying environmental conditions
Solution Approach 2:
The optical properties of the liquid crystal glass are changed by applying voltage to alter the orientation of liquid crystal molecules. This parameter change enables the glass to transition between transparent and opaque states, allowing the system to adjust light transmission based on environmental conditions rather than relying on a fixed backlight configuration
2Device complexity
If the illumination beam passes unidirectionally through the display panel, then the display structure is simple, but the display cannot provide perspective function
Solution Approach 1:
The liquid crystal glass dynamically changes its optical properties to enable bidirectional light transmission. When in atomization state, it blocks light unidirectionally for display functionality; when in transparent state, it allows light to pass through bidirectionally, enabling the display to function as a transparent panel with perspective capabilities depending on the operational mode
Solution Approach 2:
The liquid crystal glass serves multiple functions: it acts as a light-blocking layer for display mode, a transparent layer for perspective mode, and an adjustable optical element for controlling light transmission. This multi-functionality allows a single component to provide both display and perspective capabilities without requiring separate optical systems
3Ease of manufacture
If the display apparatus uses conventional transmissive display structure, then the manufacturing is straightforward, but the volume is large and transmittance is poor
Solution Approach 1:
The liquid crystal glass combines multiple functions into a single component: light transmission control, display modulation, and perspective functionality. By merging these functions into one element rather than using separate layers and components, the overall volume of the display apparatus is reduced while maintaining manufacturing feasibility through integrated fabrication processes
4Device complexity
If the display apparatus uses conventional transmissive display structure, then the assembly is simple, but the transmittance is poor limiting application range
Solution Approach 1:
The liquid crystal glass allows dynamic adjustment of light transmittance by changing the orientation of liquid crystal molecules through voltage application. This parameter change enables the system to optimize transmittance for different operating conditions, improving overall light transmission efficiency and expanding application ranges compared to fixed-structure displays
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 display apparatus can automatically or manually switch between perspective and non-perspective states based on ambient light intensity, reducing volume and enhancing application range while providing efficient image display and lighting functionality.
Implementation Method 1
The liquid crystal glass has a transparent state and an atomization state and adapted to switch between the transparent state and the atomization state
Implementation Method 2
an ambient light beam sequentially penetrates the transparent polarizer film, the transparent light-guiding plate and the liquid crystal glass to provide a backlight source
Implementation Method 3
an illumination beam emitted by the at least one light bar of the backlight module enters the transparent light-guiding plate and is guided to the liquid crystal glass
Data Source
AI summary
A display apparatus and a displaying method thereof are provided. The display apparatus includes a transmissive display panel, a liquid crystal glass, a backlight module and a transparent polarizer film. The liquid crystal glass is disposed at a side of the transmissive display panel. The liquid crystal glass has a transparent state and an atomization state and is adapted to switch between the transparent state and the atomization state. The backlight module is disposed at a side of the liquid crystal glass away from the transmissive display panel. The backlight module includes a transparent light-guiding plate and at least one light bar. The liquid crystal glass is located between the transmissive display panel and the transparent light-guiding plate. The transparent polarizer film is disposed at a side of the transparent light-guiding plate away from the liquid crystal glass.