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Planning Column

The very first story of V-by-One®, changes of HD→FHD→4K

V-by-One®, a de facto standard for next-generation high speed interface. This page shows the background of development of V-by-One® that you could never find anywhere other than here.

Preface

zoom  Many of you are aware of THine having been succeeded with video-data-transmitting technologies as its core-conpetence. Amang these technologies, V-by-One® HS, Gbps data transmitting interface, became a de facto standard for 4K2K LCD pannel and has been used to many applications.

 



In this column, I would like to tell you how THine Electronics ended up finding V-by-One® HS from the period of LVDS.

"Want LVDS? Ask THine."

What does your TV set say on it? "Full High-Definition with Double Frame Rate!" or "Quadruple Frame Rate!"?

Many TV sets use LVDS interface systems that connect between LCD panels and image processors, converting 7 bit parallel data to 1 bit serial data with low voltage differential signaling.

zoom

LVDS standard itself is widely accepted.


The writer of this column also used LVDS as an LCD panel interface before joining THine Electronics. At that time, I was an engineer who designed circuits of image processing systems and I often used LVDS named THC63xxx by THine because LCD panel makers recommended them. When I joined THine, I have surprisingly found that longer users of LVDS would often prefer to use THine's LVDS more. These customers repeatedly use THine's products as a result of usage of products including THine's and others'. I believe that trust relationship between customers and THine brings such an idea, "Want LVDS? Ask THine."

Post-LVDS


LVDS interface had been used for years, when THine thought the increasing number of cables and connectors would become constraints of cost issues.

TV has evolved rapidly in this decade. TV sets 10 years ago mainly used HD (WXGA) resolution or 4:3 VGA, that is one eighth resolution of currently expanding 4K2K TVs. In addition to resolution, the refresh rate has been improved, and today double frame rate of 100/120Hz are no longer a distinctive feature, improving LCD response time. These result in requiring 16 times as much data transmission as WXGA-type TVs. Compared to WXGA that uses 6-paired LVDS allocating 5 pairs for data and 1 pair for clock, today's 4K2K TVs with double frame rate requires 96-paired LVDS! Can you imagine? Since cables or connectors cannot be integrated like semiconductors, the increased number of cables and connectors directly result in more costs.

Improving resolution and responding speed are requested widely. THine, willing to support customers' such expectations, has repeatedly considered the specification of post-LVDS technology to deliver valuable solution for evolving TV markets.

<To Be Continued>

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Related Products

V-by-One® (SerDes) THCV213
LVCMOS to V-by-One® converter

V-by-One® (SerDes)
V-by-One® Serial/De-Serializer

V-by-One® (SerDes) THCV214
V-by-One® to LVCMOS converter

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