1. 平面顯示器 電子系統設計技術要項

2. 液晶 (LCD)  LCD TV 是未來的明星工業 平面顯示器 電漿 (Plasma) 背投 (Rear Projection)
液晶穿透式
微機電反射式
矽上液晶反射式
液晶 (LCD)
 LCD TV 是未來的明星工業

3. Subject
Picture
Sound
Connection
Information
Reception
Multimedia function

4. Picture Quality Factors
Brightness
Contrast
Color
Sharpness
Viewing Angle
Response Time
Uniformity
Jaggy
Jerky

5. A Typical Picture Specification
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

6. Brightness
More backlight

7. Contrast
Whiter and blacker

8.  The detail of black and white field
Gamma Correction
 The detail of black and white field

9. Color - cross color
Cross-color

10. Color – flesh tone correction
Too healthy

11. Color – white balance & color temperature
Black Body Locus
5300K
6500K
9300K

12. Color Temperature
Warm
Normal
Cool

13. Sharpness
More clear edge

14. Viewing Angle
Good
Bad
Lower contrast, color

15. Response Time
Tailing

16. Uniformity
Mura

17. Jaggy

18. Jerky – 3:2 pull-down
Artifact
Video mode
Film mode

19. Jerky – motion blur

20. Panel Technology: IPS vs MVA
(In plane switch)
MVA
(Multi-domain vertical alignment)
View angel
Excellent
Good
Response time
Acceptable
Contrast
Brightness OK
Quality control
Hard to control
Yield
Low
High
Cost
Technology Owner
Hitachi
Fujitsu
User
Hitachi, LG Phillip
Samsung, Sharp, CMO, AUO
Source: JPMorgan estimates, December 2003

21. PQ Decision Weighting in LCD TV
CONTROL
TUNER
IR/KBD RF
STEREO
DECODER
AUDIO
PROC
NTSC
PAL
SECAM IF IF
DATA
PROC
SIF
CVBS
YUV
CVBS
LUMA
PROC S
LUMA/
CHROMA
SEP
De-int.
SCART
YPbPr CS
CHROMA
PROC
480i/576i
480p/576p
1080i
720p
SCALER
SYNC
SEP
HS/VS
POST
ENHANCE.
RGB
LCD panel
PC VGA/DVI
1394
STB DVI/HDMI

22. Subject
Picture
Sound
Connection
Information
Reception
Multimedia function

23. 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
Dolby Virtual (surrounding process)

24. Virtual Surrounding Process
Good sound can improve visual effect
An auxiliary selling point:
SRS
BBE
Virtual Dolby

25. Some Real Surrounding Technology
Dolby Pro Logic
Dolby Digital
DTS
THX Surround EX / Dolby Digital EX

26. Subject
Picture
Sound
Connection
Information
Reception
Multimedia function

27. RF connections
NTSC (F-connector)
PAL/SECAM (IEC connector)

28. Analog video connections
CVBS
S-video
YPbPr/YCbCr
SCART
EIA-J D
D1-D5
D-sub
 HD support: 480P/1080I/720P
Japan D formats
D1: 480I
D2: 480P
D3: 1080I
D4: 720P
D5: 1080P

29. Digital video connections
DVI
DVI-I
DVI-D
DVI-A
HDCP (High-speed Data Content Protection)
1394
HDMI

30. Audio connections Baseband audio Sub-woofer Digital audio
RED: Right channel
WHITE: Left channel
Sub-woofer
Digital audio
Coaxial
Optical

31. Standard Connections
CVBS/S-video
YPbPr
YPbPr(HD)
CVBS/S-video

32. Subject
Picture
Sound
Connection
Information
Reception
Multimedia function

33. Closed Caption
Allows the viewer to read TV program dialogue or voice conversations as on screen text

34. 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
CC/V-chip
 For the US, Canada, and Brazil

35. 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
 From 1 page to 1,000 pages

36. Teletext Pages

37. Subject
Picture
Sound
Connection
Information
Reception
Multimedia function

38. TV Color Systems 1. NTSC M NTSC-J NTSC 4.43 2. PAL I D B, B1, G, H N
M Nc
3. SECAM D, K, K1, L
B, G

39. World TV Systems

40. TV Channel Allocation
VHF-L
VHF-H
UHF
North America
Japan

41. Stereo Mono SAP BTSC EIA-J Zweiton M Zweiton (A2) Analog Stereo Sound
North America, South America, Taiwan
EIA-J
Japan
Zweiton M
Korea
Zweiton (A2)
Germany
Stereo
Mono
SAP

42. NICAM Digital Stereo Sound
Near Instantaneous Companded Audio Multiplexer
First digital audio transmission
Near CD quality
 for Europe, China, South-east Asia

43. Various Models by Region
PAL
NTSC EU AP
China NA
Japan
Korea TW SA
Tuner
SECAM
(CN-multi.)
NTSC-J
Stereo
NICAM A2
MTS
EIA-J
A2-M
I/O
SCART
S/CVBS
(YPbPr)
YPbPr
D-conn.
Teletext
YES -
CC/V-chip

44. Digitize the transmission to have user get:
Digital TV
Digitize the transmission to have user get:
High quality AV
No noise, high definition, real surrounding
More program access
Hundreds of program in same spectrum
Information service
EPG: Electronic Program Guide
PPV: Pay Per View
Broadband Internet access
On-line shopping

45. World DTV Systems Pulled by Multi-channel service Pushed by FCC
Pulled by HDTV
Pulled by HDTV

46. Subject
Picture
Sound
Connection
Information
Reception
Multimedia function

47. VGA Timing Modes
Standard Resolution Refresh-rate
VGA x /75 Hz
SVGA 800 x /75 Hz
XGA x /75 Hz
WXGA x /75 Hz
WXGA x /75 Hz

48. Add-on Features Card reader Hard disc Wireless
6-in-1, show the content from DSC media
Hard disc
Video recording
Wireless
Any room, any place

49. LCD TV電子設計所需的基本功夫 電視學 電視學 硬體設計 類比及數位電路設計 數位系統與微算機設計 通信系統理論 電磁波原理
數位信號處理
電視學
系統設計
液晶顯像原理
色彩學與光學量測
類比與數位電視系統
系統架構分析與整合
軟體設計
微算機程式
演算法
計算機組織
即時作業系統
軟體工程
電視學

50. Thank You!