pctechguide.com

  • Home
  • Guides
  • Tutorials
  • Articles
  • Reviews
  • Glossary
  • Contact

Digital Flat Panels

An important difference between CRT monitors and LCD panels is that the former require an analogue signal to produce a picture and the latter require a digital signal. This fact makes the setup of an LCD panel’s position, clock and phase controls critical to obtain the best possible display quality and creates difficulties for panels that do not possess automatic setup features and require these adjustments to be made manually.

The problem occurs because most panels are designed for use with current graphics cards, which have analogue outputs. In this situation the graphics signal is generated digitally inside the PC, converted by the graphics card to an analogue signal, then fed to the LCD panel where it has to be converted back to into a digital signal. For the whole process to work properly, the two converters must be adjusted so that their conversion clocks are running in the same frequency and phase. This usually requires that the clock and phase for the converter in the LCD panel be adjusted to match that of the graphics card.

A simpler and more efficient way to drive an LCD panel would be to cut out the two-step conversion process and drive the panel directly with a digital signal. The LCD panel market is growing from month to month, and with it the pressure on graphics adapter manufacturers to produce products which allow this.

Efforts to define and standardise a digital interface for video monitors, projectors and display support systems were begun in earnest in 1996. But the process moved rather slowly in ensuing years, causing concern among manufacturers desperate for a standard. One of the earliest widely-used digital display interfaces is LVDS (low-voltage differential signalling), a low speed, and low voltage protocol optimised for the ultra-short cable lengths and stingy power requirements of laptop PC systems. Efforts to transition LVDS to external desktop displays foundered when the rival chipmakers – Texas Instruments and National Semiconductor – chose to promote different, incompatible flavours of the technology, FPD-Link and Flat-Link respectively. Other schemes such as Compaq’s Digital Flat Panel (DFP), VESA Plug and Display, and National Semiconductor’s OpenLDI also failed to achieve widespread acceptance.

Finally, the Digital Display Working Group (DDWG) came together at the Intel Developer Forum in September 1998 with the intent to put the digital display interface standard effort back on the fast track. With an ambitious goal of clearing through the confusion of digital interface standards efforts to date, the DDWG – whose initial members included computer industry leaders Intel, Compaq, Fujitsu, Hewlett-Packard, IBM, NEC and Silicon Image – set out to develop a universally acceptable specification. The hope was that Intel’s backing would greatly help in the establishment of an industry standard as it had done previously when it had helped push PCI over VL Bus, and when it stepped in to clear roadblocks for the V.90 modem standard.

In April 1999 the DDWG approved a draft Digital Visual Interface (DVI) specification, and in so doing, brought the prospect of an elegant, high-speed all-digital display solution – albeit at a fairly significant price premium – close to realisation.

  • VA – Vertically Aligned LCD Monitors
  • What in the LCD is IPS!?
  • ThinCRT Flat Panels
  • TFT LCD Monitors
  • LCD Resolutions and Picture Scaling
  • Liquid Crystal Light Polarisation in LCD Monitors
  • Polysilicon Flat Panels
  • Plasma Flat Panels
  • PALCD Flat Panels
  • OLED Flat Panels
  • MVA – Multi-domain Vertical Alignment in LCD Monitors
  • LEP Flat Panels
  • LED Flat Panels
  • LCD – Liquid Crystal Displays
  • IPS – In-Plane Switching LCD Monitors
  • HAD Flat Panels
  • Flat Panel Feature Comparisons
  • FED Flat Panels
  • Digital Flat Panels
  • DSTN LCD monitors
  • Creating Colour in LCD Displays
  • Flat Panel ALiS Technology

Filed Under: Flat Panel Displays

Latest Articles

AI-Driven Software Improves Trading Strategies for Investors

Artificial intelligence technology is changing the state of modern finance. A growing number of investors are utilizing AI to improve the effectiveness of their trading strategies. The right trading strategies allow you can earn money in the financial markets more easily. AI technology has helped … [Read More...]

Internal Interfaces Summary

The following table summarises the various interface standards for internal host adapter cards, in use as at mid-1998: Standard Typical uses Burst DTR Outlook ISA Sound cards, modems 2 MBps to 8.33 MBps Expected to be phased out by late … [Read More...]

Photo Retouching

While scanners provide an effective means of capturing colour images, that's often just the beginning. Once a photograph, for example, has been digitised, its appearance can be dramatically altered by use of a bitmap editor or paint … [Read More...]

20 Cool Creative Commons Photographs About the Future of AI

AI technology is starting to have a huge impact on our lives. The market value for AI is estimated to have been worth $279.22 billion in 2024 and it … [Read More...]

13 Impressive Stats on the Future of AI

AI technology is starting to become much more important in our everyday lives. Many businesses are using it as well. While he has created a lot of … [Read More...]

Graphic Designers on Reddit Share their Views of AI

There are clearly a lot of positive things about AI. However, it is not a good thing for everyone. One of the things that many people are worried … [Read More...]

Redditors Talk About the Impact of AI on Freelance Writers

AI technology has had a huge impact on our lives. A 2023 survey by Pew Research found that 56% of people use AI at least once a day or once a week. … [Read More...]

11 Most Popular Books on Perl Programming

Perl is not the most popular programming language. It has only one million users, compared to 12 million that use Python. However, it has a lot of … [Read More...]

10 Exceptional Books on ChatGPT that Will Blow Your Mind

ChatGPT is a powerful new AI tool that is taking the world by storm. You are going to find a lot of amazing books that will teach you how to make the … [Read More...]

Guides

  • Computer Communications
  • Mobile Computing
  • PC Components
  • PC Data Storage
  • PC Input-Output
  • PC Multimedia
  • Processors (CPUs)

Recent Posts

One-Click Operation of VHS Video to DVD Transfer Using ADVC-55

Once you have installed the ADVC-55 software, double-clicking the Let's CONVERT program icon causes a mini operating screen to appear above the … [Read More...]

Pentium Smithfield

Essentially, the Smithfield core is no more than a pair of 90nm Prescott 1M dies bound together. Each core has its own … [Read More...]

Technical guide to the Intel Penryn Core 2 Processor

The Penryn CPU is another in Intel's line of Core 2 processors and the first fabricated using its 45nm die technology. The processors replace the … [Read More...]

[footer_backtotop]

Copyright © 2025 About | Privacy | Contact Information | Wrtie For Us | Disclaimer | Copyright License | Authors