Download presentation
Presentation is loading. Please wait.
Published byClement Marsh Modified over 8 years ago
1
How Does Your TV Work? A brief introduction.
2
Two Amazing Things about the Brain 1.Connecting the dots Pixels and resolution 2.Connecting the frames 15 frames per second
3
The Cathode Ray Tube Anode and Cathode and Ray Phosphor
4
Steering Coils
6
The Black-and-White TV Signal Raster scan Horizontal retrace Vertical retrace Interlacing Progressive scanning
7
Thus, a “composite video signal” contains: 1.Intensity information 2.Horizontal retrace 3.Vertical retrace
8
Composite Video Signal
9
Adding Color Changes from Black and White 3 electron beams Screen coating Shadow mask
10
Shadow Mask
11
Chrominance Signal/ Color Burst
12
Liquid Crystal Display (LCD) Necessary physical facts: Light can be polarized. Liquid crystals can transmit and change polarized light. The structure of liquid crystals can be changed by electric current. There are transparent substances that can conduct electricity.
13
LCD Tech On Off
14
LCD Types Backlit vs. Reflective Common-plane-based Passive-matrix Active-matrix
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.