LCD Brightness Control via Dimming Mask Layer
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Solution Overview
Problem
Existing LCD systems lack the ability to effectively differentiate and highlight important information, such as warnings or alerts, by adjusting brightness levels independently of other graphics, which can lead to operator attention being diverted from critical operating conditions.
Innovation Solution
A Liquid Crystal Display (LCD) system with a graphics layer, a dimming mask layer, and an alert layer, where the alert layer is configured to display alerts brighter than the graphics layer, with the dimming mask layer covering the entire display area and being free of cut-out portions to ensure uniform dimming, allowing for selective brightness control of important information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the LCD displays all graphics at the same brightness level, then the display structure is simple and easy to control, but important information cannot be effectively differentiated or highlighted
Solution Approach 1:
The display is segmented into multiple independent layers: a first layer for graphics and a second layer for text. Each layer can be controlled independently in terms of brightness, visibility, and content, allowing important text information to be highlighted separately from background graphics without increasing overall system complexity
Solution Approach 2:
The patent introduces a vertical stacking dimension by placing the text layer above the graphics layer. This layered architecture allows independent control of each layer's brightness and visibility parameters, enabling information differentiation through the vertical dimension rather than requiring complex horizontal adjustments
2Illumination intensity
If the LCD includes multiple layers with independent brightness control, then important information can be highlighted effectively, but the device complexity increases
Solution Approach 1:
The display is segmented into multiple independent layers: a first layer for graphics and a second layer for text. Each layer can be controlled independently in terms of brightness, visibility, and content, allowing important text information to be highlighted separately from background graphics without increasing overall system complexity
Solution Approach 2:
The controller is designed with multi-functionality to manage both layers simultaneously. It can independently adjust brightness, enable/disable layers, and coordinate their interaction, providing universal control capabilities that reduce the need for separate control mechanisms for each layer
3Illumination intensity
If the mask layer includes cut-out portions to allow graphics visibility, then the graphics can be seen through the mask, but the mask cannot provide uniform dimming across the entire display area
Solution Approach 1:
The patent introduces a vertical stacking dimension by placing the text layer above the graphics layer. This layered architecture allows independent control of each layer's brightness and visibility parameters, enabling information differentiation through the vertical dimension rather than requiring complex horizontal adjustments
Solution Approach 2:
Different layers are assigned different optical properties: the first layer (graphics) can be transparent or translucent to allow light passage, while the second layer (text) is opaque for clear text display. This local quality differentiation enables each layer to perform its specific function optimally without compromising the other
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
Enables the selective and timely display of important information at higher brightness levels than the underlying graphics, effectively drawing operator attention to critical alerts or warnings, while maintaining adjustable brightness levels for other graphics.
Implementation Method 1
The present disclosure relates to a Liquid Crystal Display (LCD), and more particularly, to controlling individual brightness of select information items displayed on the LCD
Data Source
AI summary
The disclosure relates to a system, a method, and an apparatus to selectively control brightness of information displayed on a Liquid Crystal Display (LCD). A graphics layer can be provided in a display area of the LCD, and a semi-transparent mask layer can be provided above the graphics layer. An information graphics layer can be provided above the semi-transparent mask layer. The information graphics layer can be controlled to selectively display predetermined information on the LCD at an intended brightness, while remaining information from the underlying graphics layer can be dimmed relative to the brightness of the display predetermined information by activation of the semi-transparent mask layer.