Pico Projector Display with Hinged Body for Ultra-Thin Weight Reduction
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Solution Overview
Problem
Current terminal devices with displays, such as TVs and notebooks, are heavily weighted due to the display component, and existing methods to reduce weight, like using plastic substrates or thinner backlights, do not achieve an ultra-thin flat panel display.
Innovation Solution
A portable terminal device featuring a display screen made of ultra-thin material that projects image light using a pico projector, with a main body part that fixes the projector at an angle relative to the screen, allowing for a lightweight and thin design, and utilizing fluorescent materials to generate primary colors from ultraviolet or blue light for image synthesis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If traditional display components (glass substrate, backlight section) are used, then display functionality is achieved, but the terminal device weight increases significantly
Solution Approach 1:
The patent extracts and removes the heavy glass substrate and traditional backlight section from the display system. Instead, it uses a plastic substrate combined with a pico projector that projects images directly onto the screen, eliminating the need for a separate backlight unit and achieving weight reduction while maintaining display functionality
Solution Approach 2:
The patent replaces the mechanical/optical traditional display system (glass substrate + backlight section + liquid crystal layers) with a projection-based system. The pico projector uses optical projection to display images directly on the screen, substituting the complex mechanical assembly with a more compact optical system
2Length of moving object
If glass substrate and traditional backlight are used, then display is achieved, but the display thickness increases
Solution Approach 1:
The patent uses a plastic substrate instead of traditional glass substrate, enabling the display to be made thinner and more flexible. The plastic material allows for reduced thickness while maintaining the structural integrity and display quality of the screen
3Weight of moving object
If display components are reduced in weight and thickness, then portability improves, but ultra-thin flat panel display cannot be achieved
Solution Approach 1:
The patent merges the projector and display screen into an integrated ultra-thin flat panel display system. The pico projector is positioned behind or integrated with the display screen, combining the projection function and display function into a single ultra-thin unit that achieves both weight reduction and thickness reduction simultaneously
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 creation of an ultra-thin flat panel display that functions effectively in both dark and bright environments, offering improved display quality and versatility.
Implementation Method 1
the image light projected by the pico projector is ultraviolet light or blue light near ultraviolet; on the display screen, a first fluorescent material for generating a first primary color light visible to human eyes, a second fluorescent material for generating a second primary color light visible to human eyes, and a third fluorescent material for generating a third primary color light visible to human eyes are coated; and the first fluorescent material is hit by the ultraviolet light or the blue light near ultraviolet projected from the pico projector to generate the first primary color light
Data Source
AI summary
A portable terminal device includes a display screen; a pico projector for receiving an image signal of a predetermined format and projecting image light onto the display screen according to the image signal of the predetermined format, so that an image corresponding to the image signal of the predetermined format is displayed on the display screen; and a main body part, for fixing the display screen and the pico projector. The main body part includes a first part and a second part that are hinged by a hinge part. The display screen is fixed on the first part and the pico projector is positioned at the edge of the first part and is fixed on the first part, the second part or the hinge part. The pico projector forms a predetermined angle between the pico projector and the display screen while projecting.