LCD TV Display平面显示器技术

NTSC
China
PAL
(CN-multi.)
NA
NTSC
Japan
NTSC-J
Korea
NTSC
TW
NTSC
SA
NTSC
NICAM S/CVBS YPbPr -
MTS S/CVBS YPbPr YES
EIA-J S/CVBS D-conn. -
A2-M S/CVBS YPbPr -
MTS S/CVBS YPbPr -
平面显示器 电子系统设计技术要项
平面显示器

电浆 (Plasma)
背投 (Rear Projection)


液晶穿透式 微机电反射式 硅上液晶反射式

液晶 (LCD)
LCD TV是未来的明星工业
Subject
1. 2. 3.
4.
5. 6.
Picture Sound Connection Information Reception Multimedia function
IF
CVBS
SIF
DATA PROC YUV LUMA PROC CHROMA PROC
LUMA/ CHROMA SEP
De-int.
SCALER
POST ENHANCE. RGB
LCD panel
Subject
1. 2. 3.
4.
5. 6.
Picture Sound Connection Information Reception Multimedia function

Dolby Virtual(surrounding process)
Virtual Surrounding Process

Good sound can improve visual effect
An auxiliary selling point:



SRS BBE Virtual Dolby
RF NTSC PAL SECAM CVBS S SCART YPbPr 480i/576i 480p/576p 1080i 720p PC VGA/DVI 1394 STB DVI/HDMI CS SYNC SEP HS/VS
TUNER
IF
IR/KBDFra Baidu bibliotek
CONTROL
STEREO DECODER AUDIO PROC
A Typical Audio Specification Example

Sound Power

20 W RMS 40 W Music Power

4 On Board Speakers Separate Headphone Audio line output

Optical SPDIF output AC-3 in HDTV broadcasting

World DTV Systems
Pulled by Multi-channel service
Pulled by HDTV
Pushed by FCC Pulled by HDTV
Subject
1. 2. 3.
4.
5. 6.
Picture Sound Connection Information Reception Multimedia function

D1-D5

D-sub
Japan D formats D1: 480I D2: 480P D3: 1080I D4: 720P D5: 1080P
Digital video connections

DVI


DVI-I DVI-D DVI-A HDCP (High-speed Data Content Protection)
IPS
(In plane switch)
MVA
(Multi-domain vertical alignment)
View angel Response time Contrast Brightness Quality control Yield Cost Technology Owner User
Excellent Acceptable Good OK Hard to control Low High Hitachi
Some Real Surrounding Technology

Dolby Pro Logic

Dolby Digital

DTS

THX Surround EX / Dolby Digital EX
Subject
1. 2. 3.
4.
5. 6.
Picture Sound Connection Information Reception Multimedia function

More program access

Hundreds of program in same spectrum
EPG: Electronic Program Guide PPV: Pay Per View Broadband Internet access On-line shopping

Information service
RF connections

NTSC (F-connector)

PAL/SECAM (IEC connector)
Analog video connections

CVBS S-video YPbPr/YCbCr SCART
HD support: 480P/1080I/720P




EIA-J D
Brightness
More backlight
Contrast
Whiter and blacker
Gamma Correction
The detail of black and white field
Color - cross color
Cross-color
Color – flesh tone correction
for Europe, China, South-east Asia
Various Models by Region
EU
Tuner
Stereo I/O
Teletext
CC/V-chip PAL SECAM NICAM A2
PAL AP
PAL NTSC NICAM A2 S/CVBS YPbPr YES -
V-chip



A program content advisory data Respond to the advisory data by blocking content that the viewer finds objectionable FCC approved a program rating system in March 1998 All new TV sets (13 inches and larger) sold within US should have it by January 2000
MTS S/CVBS YPbPr YES
SCART S/CVBS (YPbPr) YES -
Digital TV
Digitize the transmission to have user get:

High quality AV

No noise, high definition, real surrounding
Hitachi, LG Phillip
Good Acceptable Good OK OK High Low Fujitsu
Samsung, Sharp, CMO, AUO
Source: JPMorgan estimates, December 2003
PQ Decision Weighting in LCD TV
D, K, K1, L B, G
2. PAL
D N Nc
3. SECAM
World TV Systems
TV Channel Allocation
VHF-L
VHF-H
UHF
North America
Japan
Analog Stereo Sound

BTSC

North America, South America, Taiwan
Picture Quality Factors



Brightness Contrast Color Sharpness Viewing Angle Response Time Uniformity Jaggy Jerky
A Typical Picture Specification

1394

HDMI
Audio connections

Baseband audio

RED: Right channel WHITE: Left channel

Sub-woofer Digital audio


Coaxial Optical
Standard Connections
CVBS/S-video
CC/V-chip For the US, Canada, and Brazil
Teletext
tele - text

It is a format to transmit data within a video signal Data rate is a few MBit/s Accepted global standard (WST) Secure delivery data channel Data error checking Low cost Uni-directional



Screen Size : 30" (76 cm) Visible Screen Size : 75 cm (29,53”) Display : LCD WXGA Active Matrix TFT technology Resolution 1280x768 (x3) pixels Response time LCD : 16 ms Brightness : 450 cd/m2 Contrast Ratio : 350:1 Viewing Angles : 176H/176V Anti Reflex Coated Screen
Too healthy
Color –white balance & color temperature
Black Body Locus
5300K 6500K 9300K
Color Temperature
Warm Normal Cool
Sharpness
More clear edge
Viewing Angle
From 1 page to 1,000 pages
Teletext Pages
Subject
1. 2. 3.
4.
5. 6.
Picture Sound Connection Information Reception Multimedia function
TV Color Systems
1. NTSC M NTSC-J NTSC 4.43 I B, B1, G, H M
Good
Bad
Lower contrast, color
Response Time
Tailing
Uniformity
Mura
Jaggy
Jerky – 3:2 pull-down
Artifact
Video mode
Film mode
Jerky – motion blur
Panel Technology:IPS vs MVA
VGA Timing Modes
Standard VGA SVGA XGA WXGA WXGA Resolution 640 x 480 800 x 600 1024 x 768 1280 x 768 1280 x 720 Refresh-rate 60/75 Hz 60/75 Hz 60/75 Hz 60/75 Hz 60/75 Hz

EIA-J

Stereo
Japan
Korea Germany

Zweiton M

Mono SAP

Zweiton (A2)

Digital Stereo Sound
NICAM


Near Instantaneous Companded Audio Multiplexer First digital audio transmission Near CD quality
YPbPr
YPbPr(HD)
CVBS/S-video
Subject
1. 2. 3.
4.
5. 6.
Picture Sound Connection Information Reception Multimedia function
Closed Caption

Allows the viewer to read TV program dialogue or voice conversations as on screen text