Backlit Symbol Display Panel With Wider Illuminated Area
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Solution Overview
Problem
The existing display devices for wall-mounted control apparatuses in home automation systems have limited width due to the need for separate electronic cards, which restricts the volume for other electronic devices and requires a specific depth, limiting the number of graphical symbols that can be effectively illuminated.
Innovation Solution
A display device with a transparent screen and a support panel that allows illumination bodies to be connected directly to the support panel, using shells to diffuse and reflect light, enabling a wider operating region independent of the housing dimensions and reducing overall device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If two electronic cards are set apart from each other to illuminate graphical symbols, then the graphical symbols can be sufficiently illuminated, but the depth of the box must be increased and the width of the operating region is limited by the housing dimensions
Solution Approach 1:
The patent combines the two separate electronic cards into a single integrated card structure. The first electronic card with illumination bodies and the second electronic card with holes are merged into one card, eliminating the need for depth separation while maintaining the illumination function through optical guides that redirect light from the illumination bodies to the screen.
Solution Approach 2:
The patent introduces optical guides (prisms or reflective surfaces) that redirect light in a different spatial dimension. Instead of moving light directly forward through card separation, the optical guides bend or reflect light paths, allowing illumination to reach the screen through a different dimensional route, thus reducing the required depth.
2Illumination intensity
If two electronic cards are set apart from each other, then illumination can be achieved, but the volume available for other electronic devices is reduced
Solution Approach 1:
By merging the two electronic cards into a single integrated card, the patent reduces the overall volume occupied by the illumination system. This consolidation frees up space within the housing for other electronic devices such as thermometers, hygrometers, and antennas.
Solution Approach 2:
The use of optical guides redirects light through alternative spatial paths, allowing the illumination function to be achieved without requiring the depth separation between cards. This dimensional redirection compresses the illumination system into a thinner profile, increasing available volume for other components.
3Illumination intensity
If the distance between the two cards is increased to illuminate larger graphical symbols, then visibility is improved, but the width of the operating region is limited by the housing width
Solution Approach 1:
The optical guides (prisms or reflective surfaces) redirect light at angles, allowing the illumination to spread across a wider area of the screen without increasing the physical distance between the light source and the screen in the direct forward direction. This angular redirection expands the effective operating region width within the same housing constraints.
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
This solution allows for a wider operating region on the screen, enabling more graphical symbols to be displayed without increasing the device's dimensions, thus accommodating additional electronic components and improving visibility.
Implementation Method 1
The second electronic card is equipped with illumination bodies (preferably LEDs) each generating a beam of light
Implementation Method 2
shells to diffuse and reflect light
Implementation Method 3
shells to diffuse and reflect light
Data Source
AI summary
Described is a device (1) for displaying graphical symbols (2) comprising a screen (3) at least in part transparent on which at least one graphical symbol (2) is delineated and a support panel (5) connected to the screen (3). The support panel (5) has at least one through hole (8). Moreover, the displaying device (1) comprises at least one illumination body (9) emitting a light beam (10) passing through the hole (8) for illuminating the graphical symbol (2) on the screen (3). According to this invention, the illumination body (9) is connected to the support panel (5) at the hole (8). This invention also relates to a control apparatus (100) mounted on a wall (101) comprising a containment box (102), a front frame (111) connected to the containment box (102) and the displaying device (1) connected to the front frame (111).