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I'm looking at a datasheet for an LCD panel (pdf link to datasheet).

I don't understand these two encircled dimensions:

LCD dimensions

What does the acronym "V.A." mean for these dimensions?

I have referenced a couple of other questions here on EE, but they don't cover this:
Abstract Datasheet Dimension Notation
Reading dimension in datasheet

Community
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skrrgwasme
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  • Many times those initials are "lefovers" from Chinese-English (or whichever languages) translation & don't make any sense in english. _HOWEVER_ those letters are in place of the error factor for their respective measurements, and could (conveniently) be initials for "Verified Absolute." – Robherc KV5ROB Feb 01 '16 at 06:34
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    6 years later, I'm using the exact same display with the exact same questions :D :D. Thanks for asking! – AJ_Smoothie Mar 30 '22 at 02:50

4 Answers4

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This is not a standard dimensioning abbreviation according to any standard I'm familiar with.

Instead, I suggest the (in 20:20 hindsight, obvious) meaning that the dimensions given refer to the nominal size of the LCD Viewing Area.

Spehro Pefhany
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After looking into the linked LCD datasheet and answers here, I looked into other display products of the same company NEWHEAVENDISPLAY. And the interesting thing I found is apart from V.A. they use another therm called as A.A. Below is an example. Adding the datasheet link as well, if someone more interested can look into.

V.A. can be Viewing Area or Viewing Angle(if mentioned in degrees)

A.A. is Active Area also called as effective area which the area for active pixels or icons or segments or patterns.

These links say all the same link1, link2 and link3. image

Just hope ambiguity stops here.

AKR
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1

It looks a bit bigger than the 128*64 dots region. Inspired by @Spehro's answer I'm suggesting Viewing Aperture.

I'm only playing with words. :^) It's the size of the hole you have to cut.

Transistor
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From past experience with similar displays I would go with "Very Approximate".

Steve G
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