BACKGROUND OF THE DISCLOSURE

1. Field of the Disclosure

The present disclosure relates to a display device, and more particularly to a display device capable of generating green light which has a color close to the green primary color of DCI-P3 color gamut.

2. Description of the Prior Art

Display devices are configured to convert acquired or stored electric information into visual information and display it to a user. The color gamut of display devices, such as cathode ray tube (CRT) display and liquid crystal display (LCD), are referenced to NTSC (National Television System Committee) color gamut. With the advance of technology, in order to meet different color systems and display various colors, different color gamuts, such as sRGB, DCI(Digital Cinema Initiatives)-P3 and Rec. 2020 (ITU-R Recommendation BT.2020), have been defined. The DCI-P3 color gamut is one of the popular color gamuts and is widely applied to various digital monitors or TV.

However, the color temperature of the white light generated from a digital monitor, such as a laptop computer monitor or a desktop computer monitor, is usually yellower than that generated from a TV, thereby resulting in less preferred images displayed by the digital monitor. The traditional method for adjusting color temperature or color tone is to change the spectrum of the light generated from a light-emitting material, which is complicated and also takes much time, thereby burdening the manufacturing cost.

SUMMARY OF THE DISCLOSURE

According to an embodiment of the present disclosure, a display device is provided. A display unit of the display device includes a light emitting unit and a light converting layer disposed on the light emitting unit. The display unit emits an output light under an operation of the highest gray level, and the output light has an output spectrum. An intensity integral of the output spectrum from 380 nm to 489 nm defines as a first intensity integral, an intensity integral of the output spectrum from 490 nm to 780 nm defines as a second intensity integral, a ratio of the first intensity integral over the second intensity integral defines as a first ratio, and the first ratio is greater than 0% and less than or equal to 7.5%.

According to another embodiment of the present disclosure, a display device is provided. The display device includes a backlight unit, a light modulating layer, a light converting layer, and a first polarization layer. The light modulating layer is disposed on the backlight unit. The light converting layer is disposed on the backlight unit. The first polarization layer is disposed between the light modulating layer and the light converting layer. A display unit is formed of at least a portion of the backlight unit, at least a portion of the light modulating layer, at least a portion of the light converting layer, and at least a portion of the first polarization layer, wherein the display unit emits an output light under an operation of the highest gray level, and the output light has an output spectrum. An intensity integral of the output spectrum from 380 nm to 489 nm defines as a first intensity integral, an intensity integral of the output spectrum from 490 nm to 780 nm defines as a second intensity integral, a ratio of the first intensity integral over the second intensity integral defines as a first ratio, and the first ratio is greater than 0% and less than or equal to 7.5%.

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.

