Relaxation of Polyvinyl Butyral Film with Non-uniform Thickness

Mareška, Aleš; Kordová, Tereza; Míka, M.

doi:10.21062/mft.2022.010

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…During unwinding, the material is reheated above the glass transition temperature of the PVB, which leads to changes in the thickness of the material. This process can change the wedge angle [13]. Ghosting can be suppressed by modern windshield technology with Head-Up Display.…”

Section: Ghosting Phenomenamentioning

confidence: 99%

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Production of Head-Up Display windshield and its relation with the image quality

Mareška¹,

Kordová²,

Míka³

2022

ToTS

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Previously, car windshields served as a barrier against the wind or to prevent the driver from flying outside the vehicle in a collision. The windshield is therefore laminated and consists of two glasses and an intermediate layer consisting of the so-called polyvinyl butyral foil. The latest trend in car windshields is to consider the windshield as a display and project key information onto the windshield. Such glasses are called head-up displays. Various information such as car speed or route can be projected. The driver thus constantly maintains contact with the road, which increases driving safety. Head-Up Display quality is key to display information correctly without negative effects. Such a negative effect is if the displayed information is duplicated, which is called ghosting or double-image. This effect is undesirable and ranks first among the defects we detect in Head-Up Displays. The aim of this article is to compare different production technologies with a focus on the quality of HUD projection and on the double-image occurrence. The production technology enabling optimal HUD image quality is discussed as well. The article deals with a summary of HUD production technologies, focusing on the most common defect that occurs in HUD windshields and which reduce the overall quality of the product. The article evaluates and summarizes the key findings from the perspective of the end customer, but also in terms of the production process. For the driver, as an end customer, it is a source of information according to which he can orient himself in the offer of car equipment. It can be useful for production or development people in terms of processability and process costs. At the same time, the benefits and negatives of using windshields with a Head-Up Display are discussed.

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Section: Ghosting Phenomenamentioning

confidence: 99%

“…But you have to still unwind PVB from the roll, cut it to PVB sheets and laminate it with the windshield. All of these operations may cause the change of the wedge angle therefore the processes must be well designed in order to avoid undesirable change of the wedge angle in any of these processing steps [13].…”

Section: Hud Qualitymentioning

confidence: 99%

Production of Head-Up Display windshield and its relation with the image quality

Mareška¹,

Kordová²,

Míka³

2022

ToTS

Self Cite

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“…Non ideal contact between the conductors is depicted in Fig. 2 (Mareška et al, 2022). In the framework of this study, it is mainly dealt with busbar material.…”

Section: Introductionmentioning

confidence: 99%

Lead-Free Conductors with a Surface Treatment Ensuring a Low Melting Temperature

Mareška,

Kordová,

Havlík Míka

2024

Period. Polytech. Transp. Eng.

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In order to protect the environment and to ensure sustainability, it is prohibited to use lead materials in the production of automotive components. As part of soldering, busbars are used that usually have a copper core and a coating made of tin, but the melting point of such material is high, which poses a problem during soldering. This article discusses the case where a busbar is interconnected with another conductor in a sealable pressure vessel where high temperatures and pressures are reached. The product is heated to a certain temperature and the melting temperature of the given bus coating is exceeded, resulting in soldering and an ideal connection of the wires. The problem is that the temperatures reached by the processor during this operation are lower than the melting temperatures of the busbar with a tin coating. In the article, the authors focus on the production and development of new types of busbars with a coating consisting of tin, bismuth and indium and discuss possible formulations and their effect on the melting temperature of the busbars.

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Silver Based Coated Glass and Its Effect on Safety and Environment

Mareska

2023

Ceramics - Silikaty

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Relaxation of Polyvinyl Butyral Film with Non-uniform Thickness

Cited by 5 publications

References 9 publications

Production of Head-Up Display windshield and its relation with the image quality

Production of Head-Up Display windshield and its relation with the image quality

Lead-Free Conductors with a Surface Treatment Ensuring a Low Melting Temperature

Silver Based Coated Glass and Its Effect on Safety and Environment

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