Vehicle-mounted head-up display system based on DLP technology

Abstract

The invention discloses a vehicle-mounted head-up display system based on a DLP technology. The system is characterized in that an image processing system based on a DLP controller receives information and a command from external equipment to process and outputs as a digital form to a DMD chip so as to carry out image display; and an LED control system makes an LED light source provide illumination so as to present a high-light and highly-saturated-color high-contrast graph possessing a very fast display rate, and under any illumination conditions, a clear virtual display image can be provided; and the LED light source and the DMD chip are separated, the LED light source and the DMD chip are cooled separately, and heat generated by the LED light source does not influence the DMD chip so that quality of the image display is increased and a service life of the DMD chip is prolonged. By using the vehicle-mounted head-up display system based on the DLP technology, during a driving process of a driver, fatigue states of human eyes can be greatly alleviated, which is good for safe driving.

Description

technical field [0001] The invention relates to a vehicle-mounted device, in particular to a vehicle-mounted head-up display system based on DLP technology. Background technique [0002] Head-up display or head-up display (Heads Up Display, referred to as HUD), originally used in fighter jets, is currently commonly used in aircraft flight aids ( figure 1 ). Head-up means that the pilot can see the important information he needs without looking down. The application of HUD is mainly to reduce the frequency that pilots need to look down at the instruments, avoid interruption of attention and loss of mastery of situation awareness (Situation Awareness). [0003] HUD uses the principle of optical reflection to project important flight-related information on a piece of glass. This piece of glass is located at the front of the cockpit, and its height is roughly at the level of the pilot's eyes. The projected text and images are adjusted to the infinite focal distance. When the ...

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Problems solved by technology

[0007] At present, there are two main problems with HUD head-up display system products: First, the LED light source projects TFT. Although the LED light source has a long service life and a wide color gamut, the spectrum of this light source is limited by the light-emitting material and its state. The brightness is not high, and it can only be used for home entertainment or small office spaces. It cannot reach the brightness of high-pressure mercury lamps and halogen lamps. The effect is not good; second, the light source of the LED emits light, which will generate a lot of heat, and a large sunken heat sink needs to be arranged, and a large layout space is required during installation. To reserve a good installation space, it is difficult to carry out later modification and addition

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