There is no adjustment for the viewing angle.
A sharp or an acute angle is an angle that is less than 90 degrees in measurement.
You can only see it at sharp angle because the light hits you eyes differently when you don't have it at a sharp angle.
A sharp angle is a one to eighty nine degree angle . A blunt angle is a ninety one degrees to three hundred and sixty degree angle.
No. However acute and sharp are synonyms in the context of pain.
Neither LG nor any other television can improve your poor viewing angle. To improve it, you must move from your current location to one where there is a better viewing angle. As a professor, you will be able to understand that your own location is outside the control of a television and that your scope for self determination will assist greatly in your quest to find a good viewing angle. When you have located an improved viewing angle, it might be worth marking it so that you will be able to find it again the next time you find you are at a poor viewing angle.
I don't understand why you need 170-degree viewing angle. However, you can try IPS panel implemented led TV. LG use IPS panel in led and they claims 180-degree viewing angle.
Both have viewing angle limitations. Both are working hard to overcome those limitations. Spend some time in the store to see for yourself which one is curently the best viewing angle. More importantly, make sure the viewing angle is sufficient for your own room. Take some measurements before seeing the televisions and sit in a similar position to your home environment.
perspective
angle
An acute angle
Wide viewing angle 3D means that you can enjoy a great 3D experience no matter where you are watching the TV set from or what position you're in.