Compaq 8000 An Overview of Current Display Interfaces
Compaq 8000 - Elite Convertible Minitower PC Manual
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- Compaq 8000 | An Overview of Current Display Interfaces - Page 1
An Overview of Current Display Interfaces Introduction 2 The Future of Display Interfaces 2 Monitor and TV Market Trends 2 VGA 4 DVI 6 HDMI 9 DisplayPort 11 Display Interface Comparison Table 13 - Compaq 8000 | An Overview of Current Display Interfaces - Page 2
forms, has seen reasonable success in higher-end PC PC-oriented standards, the Intel Unified Display Interface (UDI) and the VESA DisplayPort (DP) specification, have received some attention in the press as possible replacements majority of desktop monitors will , HDTV-type displays, this factor will - Compaq 8000 | An Overview of Current Display Interfaces - Page 3
next few years. (Support for legacy products will be Video). HDMI, however, is very unlikely to see much use as a PC monitor connection or graphics second-generation DisplayPort spec is expected around 2009 level (internal) interface, permitting direct-drive monitor products that may be attractive - Compaq 8000 | An Overview of Current Display Interfaces - Page 4
VGA The VGA connector - named for the Video Graphics Array standard introduced by IBM for the original Personal Computer products in 1987 has been the most successful PC monitor interface to date in the computer industry. In use now for over 20 years, the VGA (also known as the 15HD connector, for15 - Compaq 8000 | An Overview of Current Display Interfaces - Page 5
Figure 2 VGA Connector Pinout Table 1 VGA Connector Pinout Pin Signal 1 Red video 2 Green video 3 Blue video 4 Unused (n.c.) 5 Return 6 Red return 7 Green return 8 Blue return 9 +5 VDC 10 Sync. return 11 Unused 12 DDC Data (SDA) 13 Horizontal sync (TTL) 14 Vertical - Compaq 8000 | An Overview of Current Display Interfaces - Page 6
seven PC-industry companies - HP, Compaq, PC monitors. However, the DDWG group has not met for over five years, and may be considered defunct. Further development of the DVI specification is not expected. DVI is available in two forms: DVI-I, which includes both a VGA-compatible set of analog video - Compaq 8000 | An Overview of Current Display Interfaces - Page 7
Figure 4 DVI-D Receptacle Connector Figure 5 DVI-I Receptacle Connector Table 2 DVI Pinout Pin Signal Pin 1 TMDS Data 2- 14 2 TMDS Data 2+ 15 3 TMDS Data 2/4 shield 16 4 TMDS Data 4- 17 5 TMDS Data 4+ 18 6 DDC clock (SCL) 19 7 DDC data (SDA) 20 8 Vertical sync (DVI-I only - Compaq 8000 | An Overview of Current Display Interfaces - Page 8
Table 3 DVI-I (only) Pinout Pin Signal C1 Red video (analog) C2 Green video (analog) C3 Blue video (analog) C4 Horizontal sync (TTL) C5 Common return 8 - Compaq 8000 | An Overview of Current Display Interfaces - Page 9
DVI specification, Silicon Image formed a new consortium to develop the video data stream. Like DVI, HDMI also supports the Intel does not support HDMI's Consumer Electronics Control (CEC) channel, a one-line serial data bus PC use, but it has never been adopted by the PC industry. At this point PC - Compaq 8000 | An Overview of Current Display Interfaces - Page 10
Figure 7 HDMI Receptacle Pinout Table 4 HDMI Receptacle Pinout Pin Signal Pin 1 TMDS Data 2+ 17 2 TMDS Data 2 shield 18 3 TMDS Data 2- 19 4 TMDS Data 1+ 5 TMDS Data 1 shield 6 TMDS Data 1- 7 TMDS Data 0+ 8 TMDS Data 0 shield 9 TMDS Data 0- 10 TMDS Clock+ 11 TMDS Clock - Compaq 8000 | An Overview of Current Display Interfaces - Page 11
digital video information, as well as other data types (text, etc.), and later versions are expected to use the packetized protocol to enable support for multiple displays per physical connection, tiling, conditional update, etc., with full backward compatibility with the original spec. DisplayPort - Compaq 8000 | An Overview of Current Display Interfaces - Page 12
15 16 16 17 17 18 18 19 19 20 20 Signal Ground Ground AUX channel + Ground AUX channel Hot Plug Detect (HPD) Return DP Power NOTE: Note difference in Lane 0-3 connections, source side vs. sink. Cable assemblies do not carry DP - Compaq 8000 | An Overview of Current Display Interfaces - Page 13
layer 0.7 Vp-p analog video with separate TTL syncs. Silicon Image TMDS*, 3 or 6 data pairs plus clock pair. Silicon Image TMDS*, 3 data pairs plus clock pair. PCI-Express, 1, 2, or 4 data pairs ("lanes") with embedded clock. Audio No support No support Yes; effectively mandatory on - Compaq 8000 | An Overview of Current Display Interfaces - Page 14
to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors
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An Overview of Current Display Interfaces
Introduction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
The Future of Display Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Monitor and TV Market Trends
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
VGA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
DVI
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
HDMI
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
DisplayPort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Display Interface Comparison Table
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13