Transparent LCD Smart Window for Dynamic Light Control
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Solution Overview
Problem
Double-glazed windows offer soundproofing and heat insulation but lack adjustable light control and aesthetic appeal, requiring additional solutions like curtains, blinds, or shades that are inconvenient and obstruct views.
Innovation Solution
A liquid crystal display (LCD) smart window is integrated into a double-glazed window, featuring a transparent LCD device with touch functionality, mounted between glass sheets, using natural light during the day and a backlight at night, with LED bars and a light guide pattern for adjustable light control and image display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a curtain is installed to block direct sunlight, then light control is improved, but ease of operation deteriorates because light cannot be continuously adjusted
Solution Approach 1:
The patent applies a transparent LCD device that can dynamically and continuously adjust its light transmission properties. The LCD device can be controlled to vary the amount of light passing through it, enabling continuous adjustment from fully transparent to fully opaque states, thereby resolving the contradiction between light control capability and operational flexibility.
2Illumination intensity
If a window blind is installed to adjust light amount, then illumination control is improved, but ease of operation deteriorates because slats block the user's view
Solution Approach 1:
The transparent LCD device changes its optical properties (from transparent to opaque) without physically blocking the view. When adjusted to a transparent or semi-transparent state, it allows users to see through the window while controlling light entry, eliminating the view obstruction problem associated with traditional blinds while maintaining light adjustment capability.
3Illumination intensity
If semi-light-transmissive coated paper is attached to block sunlight, then light control is improved, but ease of operation deteriorates because continuous adjustment is impossible
Solution Approach 1:
The transparent LCD device provides dynamic control over light transmission, allowing continuous adjustment between transparent and opaque states. This replaces the static semi-light-transmissive coated paper with an actively controllable system that responds to user input, enabling precise light management while maintaining operational flexibility.
4Illumination intensity
If a window shade is directly attached to the window, then light blocking is improved, but ease of operation deteriorates due to manual attachment and detachment requirements
Solution Approach 1:
The transparent LCD device is integrated directly into the window structure itself, merging the light control function with the window assembly. This eliminates the need for separate, manually attachable window shades, as the LCD device becomes an inherent part of the window that can be controlled electronically without physical installation or removal.
5Ease of manufacture
If traditional window structures are used, then manufacturing simplicity is maintained, but aesthetic appeal deteriorates due to plain and simple design
Solution Approach 1:
The transparent LCD device serves multiple functions simultaneously: it acts as a display screen, a light control mechanism, and an aesthetic enhancement element. By integrating these functions into a single component within the window structure, the invention maintains manufacturing simplicity while adding decorative and functional value that improves aesthetic appeal.
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 LCD smart window provides adjustable light control, aesthetic enhancement, and functional integration of display and touch functionality, maintaining soundproofing and heat insulation while reducing the need for external light control mechanisms.
Implementation Method 1
a transparent LCD device located in a space between the inner glass sheet and the outer glass sheet to display an image
Implementation Method 2
The LCD smart window is capable of controlling the amount of light passing therethrough by controlling operation of the transparent LCD device
Implementation Method 3
a light source secured to the window frame to emit light to at least one surface of the outer glass sheet
Implementation Method 4
The outer glass sheet may have an engraved pattern formed on one surface thereof facing the transparent LCD device in order to function as a light guide plate to radiate light introduced thereinto from the light source to the transparent LCD device
Data Source
AI summary
Disclosed is a liquid crystal display (LCD) smart window configured such that a transparent LCD device is mounted in a double-glazed window. The LCD smart window includes an inner glass sheet located in an indoor space, an outer glass sheet spaced apart from the inner glass sheet by a predetermined gap and located so as to be exposed to the outside of a building, a transparent LCD device located in a space between the inner glass sheet and the outer glass sheet to display an image, a window frame supporting upper and lower surfaces and both side surfaces of the inner glass sheet and the outer glass sheet, and a light source secured to the window frame to emit light to at least one surface of the outer glass sheet.