BMW ON-BOARD MONITOR AND NAVIGATION SYSTEMS FOR E38 E39 E46 E53 Uživatelský manuál stáhnout pdf (Strana 49)

Mk-3 Navigation System On-Board Monitor with Widescreen Display Chapter 6 P.8

Course Contents/Background Material

The transmission principle

The transmission principle is used in LC displays which have

been manufactured using TFT technology.

The LC display is illuminated from behind by a vacuum

fluorescent lamp. The light from the fluorescent lamp is

distributed uniformly using a diffuser sheet. It radiates through

the polariser and the transparent electrodes to the RGB

transistors. The RGB transistors are controlled by a "colour

matrix". The corresponding image is displayed on the monitor

interface according to RGB transistor control.

Backlight is always necessary to display an image.

Fig. 1: The transmission principle with LC displays

Index Explanation Index Explanation

1 Fluorescent lamp 8 Liquid crystal layer

2 Polariser 9 Delaying film

3 Transparent electrodes 10 Diffuser sheet

4 Microreflective electrodes R RGB colour filter, red

5 Delaying film G RGB colour filter, green

6 Polariser B RGB colour filter, blue

KT-5858

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BMW ON-BOARD MONITOR AND NAVIGATION SYSTEMS FOR E38 E39 E46 E53 Uživatelský manuál Strana 49