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P‐7.16: Design of ORGB LED array based BLU for Night Vision Compatible Application
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Night vision technology plays an important role in modern war. In order to reduce the night vision radiance of LCD, a dual‐mode backlight unit (BLU) is used, which includes white LEDs and OGB color LEDs. Whether direct or side backlight, this dual‐mode backlight mechanism leads to a big pitch between physically spaced LED array, which makes LCD module thickness increase and hotspots appearance. In this paper, a novel backlight unit with night vision compatible function is designed. The backlight is composed of evenly distributed ORGB 4‐chips‐in‐1 LED array. one 21.5inch direct LCD module was designed and assembled, with thickness of 4.1cm, only 61% of previous generation. The value of NR is 1.934×10
−9
W/(cm
2
·SR·nm), meeting the requirements of GJB 1394. The color coordinates of white field are (x0.3087, y0.3403), with the NTSC of 87.7%.
Title: P‐7.16: Design of ORGB LED array based BLU for Night Vision Compatible Application
Description:
Night vision technology plays an important role in modern war.
In order to reduce the night vision radiance of LCD, a dual‐mode backlight unit (BLU) is used, which includes white LEDs and OGB color LEDs.
Whether direct or side backlight, this dual‐mode backlight mechanism leads to a big pitch between physically spaced LED array, which makes LCD module thickness increase and hotspots appearance.
In this paper, a novel backlight unit with night vision compatible function is designed.
The backlight is composed of evenly distributed ORGB 4‐chips‐in‐1 LED array.
one 21.
5inch direct LCD module was designed and assembled, with thickness of 4.
1cm, only 61% of previous generation.
The value of NR is 1.
934×10
−9
W/(cm
2
·SR·nm), meeting the requirements of GJB 1394.
The color coordinates of white field are (x0.
3087, y0.
3403), with the NTSC of 87.
7%.
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