公开(公告)号：US3575492A

公开(公告)日：1971-04-20

申请号：US3575492D

申请日：1969-07-10

Applicant: RCA CORP

Inventor： NESTER EDWARD OSKAR ,  LECHNER BERNARD JOSEPH

IPC: G02F1/133 ,  G02F1/28

CPC classification number: G02F1/13306

Abstract: Nematic liquid crystal element of the type exhibiting dynamic scattering is erased by applying an alternating voltage to the element at a frequency in the range 2 to 20 kilohertz.

公开(公告)号：US3603962A

公开(公告)日：1971-09-07

申请号：US3603962D

申请日：1970-03-18

Applicant: RCA CORP

Inventor： LECHNER BERNARD JOSEPH

IPC: G09G1/28 ,  G06F3/14

CPC classification number: G09G1/285

Abstract: A color display system is disclosed which responds to computersupplied digital signals representing graphic and alphanumeric material. The digital signals include position information bits and color information bits. The position information bits are used to control the beam deflection means of an electrical storage tube. The color information bits are translated in a digital-to-analog converter to a signal having an amplitude determined by the color information bits. This signal is applied to the video signal input terminal of the electrical storage tube, whereby the graphic material is stored as a pattern of stored charge amplitudes. The graphic material is displayed on a color kinescope having beam deflection means synchronized with the beam deflection means of the electrical storage tube. The amplitude-modulated video output signal from the electrical storage tube is applied to a threshold detector means to generate red, green and blue control signals for application to corresponding terminals of the color kinescope.

公开(公告)号：AU1309970A

公开(公告)日：1971-09-30

申请号：AU1309970

申请日：1970-03-26

Applicant: RCA CORP

Inventor： LECHNER BERNARD JOSEPH

IPC: H03K17/72 ,  H03K17/73 ,  H03R ,  H04N

公开(公告)号：DE1256693B

公开(公告)日：1967-12-21

申请号：DER0039396

申请日：1964-12-04

Applicant: RCA CORP

Inventor： LECHNER BERNARD JOSEPH

IPC: H03K3/45 ,  H04N3/14