公开(公告)号：US3560784A

公开(公告)日：1971-02-02

申请号：US3560784D

申请日：1968-07-26

Applicant: SIGMATRON INC

Inventor： STEELE GORDON N ,  SOXMAN EDWIN J

IPC: H01J29/14 ,  H01J29/18 ,  H05B33/22 ,  H01J29/28

CPC classification number: H01J29/185 ,  H01J29/14 ,  H05B33/22

Abstract: A light-emitting phosphor display device having a high contrast ratio is provided having a light-absorbing dielectric layer on the side of the phosphor layer opposite the viewing side to absorb the incident ambient light. Polycrystalline layers with matching refractive indices are selected for the phosphor and light-abosrbing dielectric layers to reduce interface reflectance, light scattering and halation.

公开(公告)号：US3908150A

公开(公告)日：1975-09-23

申请号：US40237873

申请日：1973-10-01

Applicant: SIGMATRON INC

Inventor： WEBB ROBERT D

IPC: H05B33/08 ,  H05B37/00

CPC classification number: H05B33/08 ,  Y02B20/325

Abstract: An electroluminescent display utilizing a capacitive display device. The display has an inherent minimum useful illumination term, during which it must be illuminated in order to be seen by an observer. The display is driven (actuated), so as to be illuminated, by pulses of actuating alternating current, and there will be more than one of these pulses during each said minimum useful illumination term. The pulse term, or duration, of the individual pulses is shorter than the pulse interval. The pulses may be shaped so as most efficiently to transfer energy to the display. The driving system improves the efficiency and lengthens the life of single displays, and permits higherintensity operation of multiple displays. A useful driving system includes a pulse transformer which produces the desired actuating current when it is itself pulsed.

Abstract translation: 一种利用电容显示装置的电致发光显示器。 显示器具有固有的最小有用照明项，在此期间它必须被照亮以便观察者看到。 显示器通过致动交流电的脉冲被驱动（致动）以被照亮，并且在每个所述最小有用照明项期间将存在这些脉冲中的多于一个。 单个脉冲的脉冲项或持续时间短于脉冲间隔。 脉冲可以被成形为最有效地将能量传递到显示器。 驱动系统提高了效率，延长了单个显示器的使用寿命，并允许多台显示器的高强度操作。 有用的驱动系统包括脉冲变压器，当其自身被脉冲时产生所需的致动电流。

公开(公告)号：US3239134A

公开(公告)日：1966-03-08

申请号：US35971764

申请日：1964-04-14

Applicant: SIGMATRON INC

Inventor： STEELE GORDON N

IPC: H01J41/16

CPC classification number: H01J41/16

公开(公告)号：US3813575A

公开(公告)日：1974-05-28

申请号：US19643471

申请日：1971-11-08

Applicant: SIGMATRON INC

Inventor： WEBB R

IPC: H05B33/08 ,  H05B37/00

CPC classification number: H05B33/08 ,  Y02B20/325

Abstract: An electroluminescent display utilizing a capacitive display device. The display has an inherent minimum useful illumination term, during which it must be actuated in order to be seen by an observer. The display is driven (actuated), so as to be illuminated, by pulses of actuating alternating current, and there will be more than one of these pulses during each said minimum useful illumination term. The pulse term, or duration, of the individual pulses is shorter than the interval between pulses. The pulses may be shaped so as most efficiently to transfer energy to the display. The driving system improves the efficiency and lengthens the life of single displays, and permits higher-intensity operation of multiple displays. A useful driving system includes a pulse transformer which produces the desired actuating current when it is itself pulsed.

Abstract translation: 一种利用电容显示装置的电致发光显示器。 显示器具有固有的最小有用照明项，在此期间它必须被致动以便被观察者看到。 显示器通过致动交流电的脉冲被驱动（致动）以被照亮，并且在每个所述最小有用照明项期间将存在这些脉冲中的多于一个。 单个脉冲的脉冲项或持续时间短于脉冲之间的间隔。 脉冲可以被成形为最有效地将能量传递到显示器。 驱动系统提高了效率，延长了单个显示器的使用寿命，并允许多台显示器的高强度操作。 有用的驱动系统包括脉冲变压器，当其自身被脉冲时产生所需的致动电流。