Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1997-04-15
1998-11-10
Lee, Benny
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
3151693, 3151694, 313495, 345 74, G09G 310
Patent
active
058349006
ABSTRACT:
A field emission type display device capable of preventing a variation in luminance of the display device due to a variation in ambient temperature. A resistive layer is formed on cathode electrodes arranged in a display region and conical emitters are arranged on the resistive layer. The resistive layer is made of a semiconductor material, resulting in being varied in resistance depending on a temperature. A monitor resistive pattern made of the same material as the resistive layer is arranged so as to measure the resistance variation in the form of a voltage variation through an OP amplifier 11, which is then fed to the control circuit. The control circuit controls a gate voltage depending on the resistance to prevent a variation in luminance of the display device.
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patent: 5449970 (1995-09-01), Kumar et al.
patent: 5557159 (1996-09-01), Taylor et al.
patent: 5572041 (1996-11-01), Betsui et al.
patent: 5585301 (1996-12-01), Lee et al.
patent: 5644195 (1997-07-01), Browning
Suzuki Kazuyuki
Tanaka Mitsuru
Futaba Denshi Kogyo K.K.
Lee Benny
Philogene Haissa
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