WISE WING TECHNOLOGY COMPANY
How to test our LCD screen before shipping.
Make sure every piece for you is best
Step 1.Display screen appearance checking
Put the iPhone LCD screen together with a standard sample. Check both the front and back side. Ensure there is no color difference, no scratch on touchscreen, no fault on surface, no dirty, no overflow of glue, no damage on Flex cable, no wrong frame bezel. It is easy to find the difference between the testing LCD and the standard sample. Any appearance problem is not acceptable.
Step 2. Checking the glue on screen frame
Push the LCD frame bezel with fingers, to check it is strong or not. The adhesive must adhere firmly, no stripping, no peeling off.
Step 3. LCD screen function checking
Connect the iPhone LCD to the testing panel. Check the black, white and color display. Ensure there is no LCD display problem, such as spot on display, shadow on background, light too weak, flashing or other display problem. if everything is ok, then test the touch screen function. make sure the digitizer work well. there is no dead pixel area, no touching delay, no in-sensitive. this is the most important step on screen testing.
Step 4. Screen size and shape checking
Put the LCD screen into the back housing, to check whether they match well. All screen must fit the housing perfectly. All those lifting up (too big or too small or distortion) screen will be refused.