Abstract: The invention relates to a low-pressure gas discharge lamp (10) for use in a scanning or blinking backlighting system, the low-pressure gas discharge lamp (10) comprising a luminescent layer (20) comprising a luminescent material selected from a group comprising: (Sr1-x-y-z, Bax, Cay, Eu(II)z)2Si04 (also known as XSO), (Sr1-x-y-z, Bax, Cay, Eu(II)z)Si2N2O2 (also known as XSON), and (Sr1-x-y-z, Bax, Cay, Eu(II)z)2Si5N8 (also known as XSN), wherein 0?x<1, 0?y<, 0<z?0.20, and x+y+z?1. The luminescent materials according to the invention have a relatively short decay time (less than 0.5 milliseconds), resulting in a relatively short afterglow time of the low-pressure gas discharge lamp (10) according to the invention.

Abstract: The invention relates to an illumination system for illuminating display devices, comprising at least one light source, and a light guide for guiding light generated by the at least one light source in the direction of a display device. The invention also relates to a display device provided with such an illumination system.

Abstract: The invention relates to a color display device comprising an in-line electron gun (5) for generating three electron beams (6,7,8), a deflection unit (51) for deflecting the electron beams (6,7,8) and a convergence unit (14′) for dynamically influencing the convergence of the electron beams. A variable transformer (40) is connected between the convergence unit (14′) and the deflection unit (51) for compensating undesired voltages induced by the deflection unit (51). The variable transformer (40) comprises three coils (47,48,49) wound around a hollow coil holder (43) and an adjustable core (42), which moves within the coil holder.