Polarized Sunglasses And iPhone – Black Screen Solution

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Polarized Sunglasses And iPhone Black Screen
Solution
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Polarized Sunglasses And iPhone Black Screen
Solution
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The supply chain of iPhone screen in China can be
integrated with a diversified display assembly
market. With the belief of Quality Above All,
iphoneLCD.net has been working on the technical
analyzing and test of diversified display
assemblies all the time. We will start with the
black screen phenomenon resulted by polarized
sunglasses and iPhone, or specifically speak,
Aftermarket/China-made iPhone screens. Lets run
polarized sunglasses and iPhone test and solution
at the same time. Five Aftermarket/China-made
display assembly samples are applied in this
polarized sunglasses and iPhone test and solution
blog.
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Polarized Sunglasses And iPhone Initial
Test Light the five screen samples. Test
portrait screen with polarized sunglasses, sample
(a), (c), and (e) display normally while sample
(b) and (d) with black screens. Test landscape
screen with polarized sunglasses, sample (a),
(b), and (d) display normally while sample (c)
and (e) with black screens. Polarized sunglasses
and iPhone analyzing and solutions come in three
phases
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1. Polarized Sunglasses And iPhone Touch Screen
Assembly Structure Analyzing Disassemble the
touch screen assembly on the Heat Platform. Once
disassembling process finished, distinguish the
structure of the five samples, sample (a)
features with GF structure while sample (b),
(c), (d) and (e) GG.
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Connect the touch screen assembly with LCM module
respectively, then light the five-screen samples.
Remove the touch screen assembly and test LCM
module. Test portrait screen with polarized
sunglasses, sample (a)(b)(d) come with black
screen while (c)(e) display normally. Test
landscape screen with polarized sunglasses,
sample (c)(e) come with black screen while
(a)(b)(d) display normally.
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Sample (a) features (GF) while sample
(b)(c)(d)(e) (GG). Cover the touch screen
assembly of a sample (a) (GF) over the LCM
module of the rest four samples respectively.
Then test with polarized sunglasses again. Both
portrait screen and landscape screen of a sample
(b)(c)(d)(e) display normally. Exchange the
touch screen assembly of a sample (a) (GF) with
a (GG) sample and test with polarized sunglasses
again. Test portrait screen with polarized
sunglasses, sample (GG) comes with a black
screen while sample (GF) displays normally. Test
landscape screen with polarized sunglasses, both
sample (GG) and (GF) display normally.
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2. Polarized Sunglasses And iPhone POL Replacing
Solution Use the Glue/POL Film Removing Machine
to remove the front POL film of five screen
samples. Use LCM Glue Cleaner to remove OCA
residue and align new front POL film with the
Laminating Machine. Once POL replacing finished,
light the screen samples. Before polarized
sunglasses test, We can see with naked eyes that
sample (c) and (e) display with
discoloration. Test with polarized sunglasses,
both portrait screen and landscape screen of the
five samples display with no black
screen. Remove the touch screen assembly and
test LCM module with polarized sunglasses. Both
portrait screen and landscape screen of the five
samples display with no black screen.
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Note All LCD display assemblies come with two
polarizing films, and co-working of the two
contributes to the content displayed on the
screen. The mismatching status of our replaced
front POL film and the original rear POL film
contributes to the abnormal display of sample (c)
and (e). To fix it, we need to replace with a
matching rear POL film. Remove LCM module
backlight of a sample (c) and (e) and use the
Glue/POL Film Removing Machine to remove the rear
POL film of a sample (c) and (e). Remove OCA
residue and align new rear POL film to sample (c)
and (e). Once POL replacing finished, get sample
(c) and (e) backlight assembled and then light
all screen samples.
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3. Polarized Sunglasses And iPhone Film
Solution Still, iphoneLCD.net also recommends a
simple easy solution for those in
need. Prepare five new screen samples, brand to
brand with the previous five samples. Adhere
tempered glass to the five samples. Test with
polarized sunglasses. Both portrait screen and
landscape screen of the five samples display with
no black screen.
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Conclusion The black screen phenomenon of
Aftermarket/China-made iPhone screens under
polarized sunglasses is affected by the
polarizing material of LCM modules and (GG)
structure of display assemblies. When the iPhone
display light is perpendicular to the absorption
axis of polarized sunglasses, the iPhone screen
can hardly be seen (also known as a black
screen). The easiest and simplest solution is to
adhere tempered glass on Aftermarket/China-made
iPhone screens.
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Read the complete story, follow the link below
Polarized Sunglasses And iPhone Black Screen
Solution
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