Антибликовое покрытие защищает от бликов.

Literally, it is anti-glare coating or anti-reflective coating.

• покрытие = coating, layer, finish
• антибликовое = anti-glare, literally something like against glare/reflections

The adjective антибликовое is built from блик (glare spot, light reflection, glint) plus анти- (anti-).

Because it agrees with покрытие.

In Russian, adjectives must match the noun they describe in:

• gender
• number
• case

Here, покрытие is:

• neuter
• singular
• nominative

So the adjective also has to be neuter singular nominative:

• антибликовый = masculine
• антибликовая = feminine
• антибликовое = neuter

Compare:

• антибликовый экран = anti-glare screen
• антибликовая плёнка = anti-glare film
• антибликовое покрытие = anti-glare coating

It is in the nominative case because it is the subject of the sentence.

The sentence answers the question what protects?

• Антибликовое покрытие protects.

So антибликовое покрытие is the thing doing the action, which is why it is nominative.

защищает is the 3rd person singular present tense of защищать (to protect).

It is singular because the subject is singular:

• покрытие защищает = the coating protects

It is also the normal form for stating a general fact or function:

• Солнце светит. = The sun shines.
• Этот материал защищает от влаги. = This material protects from moisture.

So here it means something like protects or serves to protect.

Because the verb защищать commonly takes от + genitive when it means protect from something.

So the pattern is:

• защищать от чего? = to protect from what?

Examples:

• защищать от дождя = protect from rain
• защищать от солнца = protect from the sun
• защищать от бликов = protect from glare/reflections

So от is required by the usual construction of the verb here.

бликов is genitive plural.

The basic noun is:

• блик = a glare spot, reflection, glint

Because от after защищать requires the genitive, and because the sentence uses the plural idea of glare/reflections, we get:

• nominative singular: блик
• genitive singular: блика
• nominative plural: блики
• genitive plural: бликов

So от бликов literally means from glares/reflections.

Russian often uses the plural блики when talking about visible reflections or glare spots on a surface.

So:

• блики = reflections/glare spots
• от бликов = from reflections / from glare

English often uses glare as an uncountable noun, but Russian more naturally thinks of these as separate visible reflections.

That is why от бликов sounds natural here.

Not exactly.

блик usually means a bright reflected spot of light, a glint, or a glare reflection on a surface.

It is more specific than:

• свет = light
• блеск = shine, gloss, sparkle

So in this sentence, блики are the annoying reflections you might see on a screen, lens, or glossy surface.

Yes. Russian word order is fairly flexible because the cases show the grammatical roles.

The most neutral order here is:

• Антибликовое покрытие защищает от бликов.

But other orders are possible for emphasis, for example:

• От бликов защищает антибликовое покрытие.

That sounds more like It is the anti-glare coating that protects from glare.

So the original sentence is the most straightforward, neutral version.

Because Russian has no articles.

Russian does not have direct equivalents of English a/an and the. Whether something is definite or indefinite is understood from context.

So Антибликовое покрытие could mean:

• an anti-glare coating
• the anti-glare coating
• anti-glare coating

depending on the situation.

English has to choose an article, but Russian does not.