Vehicle Windshield Two-Dimensional Code Enamel Marking
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Solution Overview
Problem
Current methods for marking vehicle windshields with unique information are limited, as they are difficult to apply over large areas and require additional expensive components, such as RFID chips, and struggle with aesthetic integration and uniqueness across batches.
Innovation Solution
A vehicle windshield with a two-dimensional code printed using black enamel paint or silver paste on the glass surfaces, allowing the code to be made visible or invisible, and differing between windshields, integrated into the laminated glass structure during manufacturing through thermal-bending and intermediate film sandwiching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional printing or sandblasting methods are used to mark information on vehicle windshields, then the marking process is simple and cost-effective, but the amount of information that can be marked is limited and uniqueness across batches cannot be achieved
Solution Approach 1:
The patent transitions from traditional one-dimensional linear text markings to two-dimensional code markings on the windshield surface. This dimensional change enables significantly increased information storage capacity while maintaining a compact visual footprint, allowing unique batch identification and detailed vehicle information to be encoded in a small area without requiring complex additional components
Solution Approach 2:
The patent employs variable parameters in the two-dimensional code design, including different code patterns, positions, and enamel paint characteristics (gloss, color intensity). These parameter variations enable each windshield batch to have unique identifiable markings while using the same basic marking system, achieving both standardization and uniqueness without increasing system complexity
2Reliability
If RFID chip lamination technology is adopted to achieve anti-counterfeiting and store more information, then the anti-counterfeiting function and information storage are effectively achieved, but additional components are required which increases cost
Solution Approach 1:
The patent extracts the information storage and anti-counterfeiting function from separate physical components (RFID chips) and integrates it directly into the windshield's existing structure through enamel paint markings. This eliminates the need for additional electronic components while maintaining the anti-counterfeiting and information storage functions, reducing both cost and device complexity
Solution Approach 2:
The enamel paint marking system serves multiple functions simultaneously: it provides aesthetic blackening of the windshield edges, enables unique identification through variable two-dimensional codes, and delivers anti-counterfeiting protection. This multi-functional approach replaces the need for dedicated anti-counterfeiting components, achieving reliability without increased complexity
3Loss of information
If two-dimensional codes are printed on vehicle windshields to enable unique identification and anti-counterfeiting, then information storage and verification capability are improved, but the code may be visible to naked eyes which affects aesthetic appearance
Solution Approach 1:
The patent applies different visual properties to different regions of the marking system. The two-dimensional code is printed with enamel paint that matches the surrounding black edge treatment in terms of base color, making it visually integrated and aesthetically pleasing. The code's distinguishability is achieved through subtle variations in paint gloss or position rather than contrasting colors, maintaining aesthetic appearance while preserving unique information encoding capability
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 effective anti-counterfeiting and authentication while maintaining aesthetic appeal, allowing for unique identification and additional applications like product tracing and electronic payments, without the limitations of light reflection errors and ensuring the code's permanence.
Implementation Method 1
Black enamel paint is printed on the second surface and/or the fourth surface. Also, the second surface or the fourth surface is provided with a two-dimensional code printed with enamel paint
Implementation Method 2
The laminated glass, also known as plyglass, is an integral composite glass product consisting of two pieces of glasses and one or more layers of organic polymer intermediate film sandwiched therebetween, which can be permanently adhered
Implementation Method 3
which can be permanently adhered after being treated by a special high-temperature and pre-pressing (or vacuuming) process in combination with a high-temperature and high-pressure process
Data Source
AI summary
A vehicle windshield with a two-dimensional code includes a first glass, a second glass and an intermediate film provided between the first glass and the second glass. The first glass includes a first surface facing the exterior of a vehicle and a second surface adhered to the intermediate film, while the second glass includes a third surface adhered to the intermediate film and a fourth surface facing the interior of the vehicle. Black enamel paint is printed on the second surface and/or the fourth surface. The second surface or the fourth surface is provided with a two-dimensional code printed with enamel paint at a position corresponding to the black enamel paint. The two-dimensional code contains unique information of the glass and/or the vehicle.