Using the phone's color LCD anti-reflective protective film can reduce glare eye affected by external stimuli to enhance viewing comfort, and protect the eyes. The base of the phone is commonly used PC or acrylic substrate. Both the substrate as a color LCD screen protection, there are disadvantages of high reflectivity. Because without a coating of protective screen interface has a reflectivity of at least 4.2%, in bright light (such as sunlight) exposure, the intensity of the reflected light will seriously reduce the contrast of the display image. Therefore, such a surface coating on the protection panel antireflection film reflectance is less than 0.5%, will improve the clarity of the display.
In the protective screen surface were coated with magnetron sputtering (Vacuum coating) on a high refractive index and low refractive index films Ti02 Si02 film, the protective screen has a low reflection antireflection effect. Since the PC or acrylic substrate is an organic material, it should be in the range of deposition temperature of 30-35 ℃.
Coating process
(1) substrate -PMMA, PC.
(2) a two-story film system antireflection coating ten waterproof membrane. Membrane system.
(3) coating. Using continuous reaction magnetron sputtering deposition machine.
① Power: Si target IF power, Ti target with ten pulsed DC power supply.
② vacuum degree: access Ar, 02, a vacuum degree of 5*10-1Pa.
③ Temperature: 25-35 ℃
④ finally deposited waterproof membrane IAF3
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