DISCHARGE LAMP AND BACKLIGHT UNIT FOR BACKLIGHTING A DISPLAY DEVICE COMPRISING SUCH A DISCHARGE LAMP

• Main Authors: HELLEBREKERS WIM, ANTONIS PIET
• Format: Patent
• Language: English
• Published: 12.12.2007
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRICITY; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The invention relates to a discharge lamp (1), comprising: a light-transmissive discharge vessel (2) filled with an ionizable substance, and multiple electrodes (3, 4) connected to said vessel, between which electrodes a discharge extends during lamp operation, wherein at least one electrode is adapted for capacitive coupling of RF electrical energy to said ionizable substance. The invention also relates to a backlight module for backlighting a display device comprising at least one discharge lamp according to the invention. The invention further relates to a display device provided with at least one backlight module according to the invention.