Colour distortion when open more than 40 degrees.

My Macbook suddenly started distorting the display colours when the clamshell is opened to more than 40 degrees. There is no other distortion notable with the display- no black spots no lines. When the clamshell is opened less than 40 degrees the display is completely normal.

I sent it for an assessment at a registered apple service centre and they have reported that there is distortion and discoloration on the internal display. I am not sure I understand this.

Has anyone had a similar issue?

Here is the full comment from them:

FAULT DESCRIPTION :

DISTORTED & DISCOLORATION ON INTERNAL DISPLAY

DEVICE FAILING DISPLAY & SENSORS IN DISCRETE GRAPHICS MODE & TRACKPAD ON DIAGNOSTICS DEVICE GIVES OUT EXTERNAL DISPLAY

EXTERNAL MOUSE WORKING

CORROSION SPOT ON LOGIC BOARD

DISPLAY, LOGIC BOARD & TRACKPAD FAULTY

They want to replace the display as well as the logic board and touch ID board.

Basically costing the price of a new Macbook pro.

Any help will be appreciated.