S-LEC™ Wedge Shaped Film responds to the diversification of HUD.
The precise control of refractions of light over the full projection area is required. S-LEC™ Wedge Shaped Film is compatible with the wide view of AR-HUD.
Dual-plane HUD projects information in two tiers, upper and lower, using different focal distance and a complex wedge-shaped interlayer film design is needed. S-LEC™ Wedge Shaped Film is compatible with the complex design.
The required angle to control light refraction in the windshield may differ by vehicle body type, such as sedan, sports car, SUV and minivan. With S-LEC™ Wedge Shaped Film, the wedge angle can be customized according to the shape and design of the glass, enabling the projection of clear HUD images.
Different windshields require different angles of glass for Head-up Display(HUD), which is why we use a wedge-shaped film.
For example, different vehicle body types require different wedge angles, and S-LEC™ Wedge Shaped Film can customize the wedge angle according to the windshield mounting angle and design, enabling clear images to be displayed on various body types.
In addition, Our S-LEC™ Customized Wedge Film solution provides the possibility to flexibly customize the wedge angle profile and thickness to support a wide range of needs and technologies.
Double images may occur with AR HUDs when the driver’s viewpoint height changes.
SEKISUI S-LEC addresses this issue by customizing the wedge angle profile to ensure an optimal viewing experience at both high and low viewpoints. This improves the clarity of the HUD image when the driver’s viewpoint height changes.
As automotive manufacturers advance the development of autonomous driving technology, new systems are being introduced into vehicles in order to realise the goal of fully autonomous vehicles. The ADAS system is one of the key technologies being introduced for this purpose.
When an appropriate wedge angle profile is not set when the ADAS camera is positioned behind the windscreen, a problem may arise where a double image occurs in the ADAS camera but not in the HUD area, leading to incorrect recognition of the safety situation.
S-LEC™ Customized Wedge Film can be used to make a suitable wedge angle profile to ensure suitable angles for both the HUD area and the ADAS camera area, contributing to the safe operation of both technologies.
HUD (Head-Up Display) technologies are being adopted by a wide range of Automotive OEM and consumers. Due to the introduction of new HUD types and designs, the technical requirements for laminated windshields are continuously changing.
In this webinar, SEKISUI S-LEC will guide you through all benefits that can be achieved using S-LEC™ film to meet the broad range of demands from tier-1 suppliers & OEM for HUD.
The HUD unit is exposed to loads of sunlight. In recent years, augmented reality head-up displays (AR-HUD) that project large screens have attracted attention. The HUD unit is getting bigger to project more information over a wider area, and there is concern about damage to the HUD unit due to heat collection from sunlight.
S-LEC™ Wedge Shaped Film with solar control function reduce the effect of sunlight and the load on the HUD unit. Laboratory tests conducted by SEKISUI S-LEC and its partners have confirmed that S-LEC™ Wedge Shaped Film with solar control function reduces the temperature rise on TFT in the HUD unit by 7°C compared to a standard windshield.
There are two types of head-up display systems in the market: direct type and combiner type.
Direct type is a HUD system that projects images directly onto the windshield. It is superior because the driver can catch information without moving the driver’s eyes.
Combiner type displays information on a small, translucent panel called a combiner, which requires the driver to lower their line of sight to the frame of the combiner installed on the dashboard. In general, the distance from the driver’s eyes to the display screen is shorter, and the display screen is smaller than the direct type.
SEKISUI S-LEC surveys have shown that experiencing Head-up Display(HUD) features in a test drive vehicle at a dealer has a major impact on their later choice of adding a HUD when people are considering purchasing. We believe that installing HUD in test drive vehicles and actively creating opportunities for people to experience their features will become effective measures for making HUD more popular in the future and expanding the market.
We offer the following combinations of multiple functions into one film:
Solar ControlLeave discomfort at the curb. S-LEC™ Solar Control Film with fine particle dispersion technologies enables comfortable and efficient vehicle designs for passengers.
Sound AcousticS-LEC™ Sound Acoustic Film reduces the transmission of exterior noises for the highest level of luxury and comfort on the market.
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