What is the word/phrase which describes that type of shade which one can witness on a sunny day under a tree which doesn't have very thick foliage; the one which is a mixture of shadow spots formed by the leaves and light spots from the sunlight coming between them?
The phrase you might be looking for is
as opposed to
I really like the answer given by Max, but if you are looking for a less poetic expression with a greater likelihood of comprehension (I feel there might be a few people who might not understand "dappled shade", as good an expression as it is), I would say "patchy shade". On the other hand, if you want a more poetic expression, Max's answer is better.