Reflective Watch LCD With Quantum Rod Wavelength Conversion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Liquid crystal displays (LCDs) used in watches and smart watches suffer from aesthetic quality issues and are often too dark, lacking sufficient brightness and esthetics.
Innovation Solution
A low energy display system for watches and smart watches utilizing a quantum rod aligned relative to a polarization-sensitive optical switch, combined with a wavelength conversion member, optical filters, and a reflecting element to convert primary light into secondary light, enhancing brightness and reflectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional LCD is used in watches, then energy consumption is low and contrast is good, but aesthetic quality is poor and brightness is insufficient
Solution Approach 1:
The patent changes the wavelength parameters of light by using quantum rods to convert primary light (e.g., blue 450nm) into secondary light with different wavelengths (e.g., green 530nm, red 650nm). This wavelength conversion enables the display to achieve brighter and more aesthetically pleasing colors while maintaining the low energy consumption and good contrast of conventional LCDs.
Solution Approach 2:
The patent combines multiple materials including quantum rods, wavelength conversion layers, liquid crystal layers, polarizing layers, and reflective layers to create a composite display structure. This composite approach allows the display to simultaneously achieve high brightness, good aesthetic quality, low energy consumption, and high contrast by leveraging the properties of each material.
2Illumination intensity
If quantum rods are aligned relative to the polarization sensitive optical switch, then transmittance of secondary light is maximized, but device complexity increases
Solution Approach 1:
The patent utilizes the polarization state parameter of light and aligns the quantum rods relative to the polarization sensitive optical switch to maximize transmittance. By controlling the orientation parameter of the quantum rods matching the polarization direction, the system achieves enhanced light transmission without requiring complex mechanical adjustment mechanisms.
3Illumination intensity
If optical filters and reflecting elements are added to enhance brightness and reflectivity, then aesthetic quality improves, but device complexity increases
Solution Approach 1:
The patent designs optical components such as the wavelength conversion layer and reflective layer to serve multiple functions simultaneously. For example, the reflective layer not only reflects light to enhance brightness but also contributes to the overall optical filtering and color enhancement functions, reducing the need for separate dedicated components and thereby limiting the increase in device complexity.
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 system achieves a bright and low-power consuming display by maximizing the transmittance of secondary light emitted by the quantum rod, improving esthetic quality and reducing energy consumption.
Implementation Method 1
said low energy display converts said at least one primary light into at least one secondary light
Implementation Method 2
said at least one quantum rod is configured to be aligned relative to the polarization sensitive optical switch
Implementation Method 3
said low energy display can reflect said at least one primary light and/or said at least one secondary light
Data Source
Figure 1A~1B
Figure 2A~2B
AI summary
The present invention concerns a watch (200) or a smart watch (200) having a low power consuming and a bright and enhanced low energy display (100) by using a low energy display (100) configured to display at least one piece of information and to convert at least one primary light (410) into at least one second light (420).