Epson HUD chip automotive head up display system solution with crystal oscillator and gyroscope

Mar 11,2024
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HUD, also known as HeadUpDisplay, has long been applied in aircraft assisted driving. Through the centralized projection of parameters, it helps drivers grasp important driving information without looking down at the instrument, avoiding frequent looking down at the instrument or car screen during driving, and playing a good auxiliary role in driving safety. After the introduction of this technology to automobiles, it went through a period of decline. With the advancement of technology and the support of AR technology, HUD returned to the public's view and began to develop rapidly.

At present, the automotive head up display technology among EPSON's numerous digital technology products and solutions is constantly being upgraded and innovated. EPSON's new head up display control chip can correct the distortion of images transmitted from SoC based on the curvature of the vehicle's windshield, thus enabling a fast implementation of a head up display system. In addition, it also has display safety functions and supports the construction of more reliable display systems, and the controller IC can meet the strict quality requirements of the automotive industry.

Today, Piezoelectric Xia will introduce a car head up display system solution equipped with Epson HUD chip automotive standard crystal oscillator and gyroscope. HUD mainly consists of three components: video host, HUD chip module, and LCD display screen. The safe operation of HUD is influenced by various factors. Below is a detailed introduction to the overall solution of Epson HUD chip+crystal oscillator+gyroscope, which has a huge impact on HUD.

What are the characteristics of Epson HUD chips?

Screen correction:

Due to the inclination and curvature of the windshield, direct projection can cause distortion of the image. The Epson HUD chip uses mature correction technology to preprocess the image, allowing it to be beautifully projected onto the windshield.

Security measures:

Due to HUD imaging on windshields or roads, if data or navigation instructions are incorrect, it can easily mislead driving and cause traffic safety accidents. In order to enhance security attributes, Epson HUD chips are equipped with multiple monitoring functions:

1. Host communication, register signal monitoring

2. Video data, resolution monitoring

3. Clock signal monitoring

4. Multi regional blinding monitoring

Driving safety has always been a top priority for Epson, and we hope to convey this concept to our customers through high safety products.

Clear screen:

During the driving process, factors such as light and weather constantly change, causing a significant impact on the imaging of the HUD. To address this pain point, the Epson HUD chip has added two new functions.

1. High resolution: 1280 * 720 resolution

2. Local dimming: Real time calculation of the image, dynamically adjusting the backlight brightness of the area based on the image content, increasing contrast, improving safety, and reducing power consumption.

Epson HUD chips have been supplied to multiple leading car manufacturers, with two main models currently being promoted:

S2D13V40F01A000

S2D13V42F00A100

The specific specifications and parameters are as follows:

Why does the HUD system require a gyroscope?

In AR-HUD, navigation information needs to be presented on the road. During driving, it is inevitable to encounter undulations on the road surface, causing navigation instructions to deviate from the actual environment. Adding a gyroscope to the HUD module can compensate for attitude deviation and maintain stable image position.

We recommend using Epson automotive grade gyroscopes that comply with AEC-Q200 certification, with multiple packaging and interfaces to choose from. The recommended models are the XV4001 series (XV4001BD/BC, XV40010KD/KC)

Epson's automotive grade crystal oscillator makes HUD more stable

High performance crystal oscillators are essential for the stable operation of chips. Epson's crystal oscillators have the characteristics of high reliability, low power consumption, and small packaging, and have passed AEC-Q200 certification, making driving more reassuring. Recommend using SG2016CAA and SG2520CAA programmable active crystal oscillators with HUD chips.

HUD can greatly improve the driving experience and safety assurance. Although it is currently more common in mid to high end models, we believe that with the maturity of technology and the decrease in costs, it will definitely become a standard feature in cars in the future. Several domestic and foreign automotive parts manufacturers have already cooperated with Epson, and we believe that the Epson integration plan will play an indispensable role in the development process of HUD.

Piezoelectric Xia is an authorized agent and sales representative of EPSON/Epson (China) Co., Ltd. We welcome inquiries and purchases of Epson HUD chips, automotive standard crystal oscillators, and gyroscopes for automotive head up display systems.