Display screen and display apparatus

Abstract

The present invention provides a display screen and a display apparatus. The display screen includes a transparent substrate and a thin film on a surface of the substrate. The thin film has a wavelength selection characteristic, and has one reflection apex in a red wave band, a green wave band and a blue band respectively, an average transmitting rate of other visible light wave bands except for the reflection apexes is larger than 85%; wherein, a peak reflectance of the green reflection apex and the blue reflection apex is a first ratio and a peak reflectance of the red reflection apex and the blue reflection apex is a second ratio so that human eyes can not detect a difference between a color of an emergent light and a color of an incident light after a transmission of the sunlight to the thin film in sunny days. The reflection screen has a high transmittance for the sunlight and a constant color, and thus the reflection screen does not affect the way that a driver observes sceneries outside a vehicle. At the same time, the reflection screen has a high reflectivity for information light projected by a projector so as to greatly solve a problem of insufficient luminance.

Description

technical field [0001] The invention relates to the display field, in particular to a display screen and a display device using the display screen. Background technique [0002] At present, the vehicle head-up display is a hot spot of applied research. Head-up display refers to projecting images of car information, navigation information, etc. into the eyes of the driver within the driver's head-up line of sight. Improve driving safety. [0003] There are many kinds of head-up display products on the market, but there is a common problem of insufficient brightness; especially in the daytime (sunny day) when the background light is strong, the information image overlapped by the head-up display is not bright enough to make it difficult to see clearly. This is the main technical problem currently restricting the vehicle-mounted head-up display. [0004] The current technical solution is to project the image onto the front windshield of the car or a transparent flat panel,...

AI Technical Summary

Problems solved by technology

[0007] The reflective screen has a high transmittance to sunlight and the color does not change, so that the reflective screen will not affect the driver's observation of the scene outside the car; at the same time, the reflective screen has a high reflectivity for the information light projected by the projection device, which is largely Solved the problem of insufficient brightness on

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