公开(公告)号：ZA773153B

公开(公告)日：1978-04-26

申请号：ZA773153

申请日：1977-05-25

Applicant: RCA CORP

Inventor： ANDERSON C ,  MARLOWE F

IPC: H01J31/26 ,  H01J29/46 ,  H01J31/12 ,  G01F ,  H01J

Abstract: Perfections introduced into an electronic display device comprising an inner vacuum blister having a front wall, a rear wall very little separated from it and a plurality of channels extending therebetween; a phosphor screen along the internal surface of said front wall, in each of said channels; *** view image (Machine-translation by Google Translate, not legally binding)

公开(公告)号：ZA707491B

公开(公告)日：1971-08-25

申请号：ZA707491

申请日：1970-11-04

Applicant: RCA CORP

Inventor： NESTER E ,  MARLOWE F

IPC: G02F1/133 ,  G02F1/1365 ,  G02F1/1368 ,  G09G3/18 ,  G09G3/36 ,  H04N3/12 ,  H04N3/14 ,  H04N5/66 ,  G01F

Abstract: A unidirectional electric field is applied to selected liquid crystal elements of a display matrix during one display frame. The direction of application of the field is reversed during the next display frame. The above may be achieved, for example, by connecting a capacitor across the liquid crystal element, charging it in one sense during one frame then opening the charging circuit, and charging it in the opposite sense during the next frame and then opening the charging circuit.