Liquid Crystal Shutter for Uniform Display Color
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Solution Overview
Problem
Conventional display devices with a frame area around the display section do not appear as a uniform color when the display section is not active, making it difficult to match the display area and frame area colors, which is a challenge for manufacturers aiming for a fade-in and fade-out effect.
Innovation Solution
A display device incorporating a liquid crystal shutter with a first area corresponding to the display section and a second area corresponding to the hidden section, which can be switched between transparent and opaque states to match the color of the display area with the hidden area, using a controlling unit to apply specific voltages across transparent electrodes to achieve uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a light-shielding resin layer is provided on the backside of the surface glass substrate to hide circuits in the frame area, then the circuits are hidden from view, but the display area and frame area do not appear as a uniform color when the display section is not active
Solution Approach 1:
The invention divides the liquid crystal shutter into multiple independent areas (first area for display section, second area for frame area) that can be controlled separately. This segmentation allows different regions to have different optical states (transparent or opaque) independently, enabling the display area to be transparent while the frame area remains opaque, thus achieving both circuit hiding and color uniformity.
Solution Approach 2:
The invention applies different optical properties to different regions of the liquid crystal shutter. The first area corresponding to the display section can be set to transparent state, while the second area corresponding to the frame area is set to opaque state. This local differentiation of optical quality allows each region to fulfill its specific function while maintaining overall visual uniformity.
2Ease of manufacture
If the display area and frame area are made to have the same structure and material, then manufacturing is simplified, but the ability to achieve uniform color appearance when display is inactive is lost
Solution Approach 1:
The liquid crystal shutter serves multiple functions simultaneously: it acts as both a display component and a light-shielding component, and it provides both display functionality and aesthetic uniformity. By using a single liquid crystal shutter structure that can be differentially controlled, the invention eliminates the need for separate light-shielding resin layers while achieving both manufacturing simplicity and visual uniformity.
Solution Approach 2:
The invention introduces dynamic control capability to the shutter structure through liquid crystal technology. The optical state of different regions can be dynamically changed between transparent and opaque states based on operational requirements, allowing the system to adapt between displaying content and maintaining uniform appearance without physical reconfiguration.
3Ease of operation
If different voltage patterns are applied to different areas of the liquid crystal shutter, then precise control of transparent and opaque states is achieved, but device complexity increases
Solution Approach 1:
The liquid crystal shutter is divided into multiple independently controllable areas with separate electrode pairs. Each area can receive different voltage patterns (same potential or potential difference with predetermined frequency) to achieve desired optical states. This segmentation enables precise control of each region's transparency while maintaining manageable system complexity through modular electrode design.
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 liquid crystal shutter ensures that the display area and hidden area appear as a uniform color when the display is active or inactive, allowing for a seamless fade-in and fade-out effect, mimicking the appearance of a conventional light-shielding resin layer.
Implementation Method 1
a liquid crystal shutter that is layered on the displaying unit and has a first area corresponding to the display area and a second area corresponding to the hidden area
Implementation Method 2
voltage at the same potential and voltage having a predetermined frequency and a predetermined potential difference are selectively applied across the pair of first electrodes; and the voltage at the same potential is always applied across the pair of second electrodes
Data Source
AI summary
A display device includes a liquid crystal display device that has a display area and a hidden area surrounding the display area; a liquid crystal shutter that is layered on the liquid crystal display device and has a first area corresponding to the display area and a second area corresponding to the hidden area; and a control unit that sets the first and second areas to a transparent state and an opaque state, respectively, when the display area is active, and sets the first and second areas to the opaque state when the display area is not active.