BACKGROUND OF THE DISCLOSURE

1. Field of the Disclosure

The present disclosure relates to a display device, and more particularly to a display device for improving the display in low luminance viewing conditions by adjusting colors.

2. Description of the Prior Art

Nowadays, display devices have advantages of portability, low power consumption, and low radiation. Therefore, they are widely used in various information products, such as desktop computers, notebooks, smart phones, car displays and head up displays.

In general, human eyes have three types of visions according to different luminance viewing conditions: photopic vision in the high luminance viewing condition, scotopic vision (dark vision) in the low luminance viewing condition, and mesopic vision (middle vision) in the low luminance viewing condition. The mesopic vision is a combination or a transition of the photopic vision and the scotopic vision. However, the conventional display devices are usually designed for photopic vision of human eyes. In other words, the conventional display devices are disadvantageous for the users to view pictures or images with the scotopic vision or the mesopic vision. Therefore, the quality of watching the pictures or images would be affected in low luminance viewing conditions.

SUMMARY OF THE DISCLOSURE

A display device is provided. The display device includes a first display unit emitting a green light that has a first output spectrum corresponding to a highest gray level of the display device, and a second display unit emitting a blue light that has a second output spectrum corresponding to the highest gray level of the display device. An intensity integral of the first output spectrum within a range from 380 nm to 780 nm is defined as a first intensity integral. An intensity integral of the second output spectrum within a range from 511 nm to 597 nm is defined as a second intensity integral. A ratio of the second intensity integral to the first intensity integral is defined as a first ratio, and the first ratio is greater than 0% and less than or equal to 25.0%.

A display device includes a first display unit emitting a red light having a first output spectrum corresponding to a highest gray level of the display device, and a second display unit emitting a blue light having a second output spectrum corresponding to the highest gray level of the display device. An intensity integral of the first output spectrum within a range from 380 nm to 780 nm is defined as a first intensity integral, an intensity integral of the second output spectrum within a range from 494 nm to 580 nm is defined as a second intensity integral, a ratio of the second intensity integral to the first intensity integral is greater than 0% and less than or equal to 28.0%.

These and other objectives of the present disclosure will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the embodiment that is illustrated in the various figures and drawings.

