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Check for uneven display glass before sticking Tempered Glass to it

?

Do you have non-flat display issue on your OPO?

  1. No

  2. Yes

Results are only viewable after voting.
  1. pushkaljn
    Honeycomb Jan 21, 2015

    pushkaljn , Jan 21, 2015 :
    Bhai get it replaced..in the poll only a quarter feel ..i emphasise.. FEEL.. that they have dent..FEEL because the method is not right..TUBELIGHT sab ke sab..lol.
    @dhirajmishra what say..
     

    #61
    dhirajmishra likes this.
  2. blackscorpio
    Froyo Jan 21, 2015

    blackscorpio , Jan 21, 2015 :
    Its not really a dent in the top glass, as per my guess its between top glass and LCD. So, I don't know if there is any test we can perform with out any tools.

    After referring to your pictures, dhirajmishra, now I believe there is some problem me and op are experiencing which you are not able to see.
     

    #62
  3. shubhamgulati91
    Honeycomb Jan 21, 2015

    shubhamgulati91 , Jan 21, 2015 :
    Gift me an Orzly TG, I will do your flatness test and ask mods to remove the thread if my opo fails the test, which it won't for sure.
     

    #63
  4. dhirajmishra
    Ice Cream Sandwich Jan 21, 2015

    dhirajmishra , Jan 21, 2015 :
    Exactly. We share the same thoughts. LOL.
     

    #64
  5. pushkaljn
    Honeycomb Jan 21, 2015

    pushkaljn , Jan 21, 2015 :
    This test should be without tempered glass..bhai.i dont want to prove anything.. i am happy with my OPO TG. Upgraded from nilkin tg..trust me..
    Olx pe bech de
     

    #65
    dhirajmishra likes this.
  6. dhirajmishra
    Ice Cream Sandwich Jan 21, 2015

    dhirajmishra , Jan 21, 2015 :
    Nobody is asking you to remove the thread and nobody is doubting on your claim of having a dent.
    We just have a problem with the method that you are suggesting others to follow if they want to check their OPO's screen for dents.
     

    #66
    pushkaljn likes this.
  7. blackscorpio
    Froyo Jan 21, 2015

    blackscorpio , Jan 21, 2015 :
    I see the same just out of the box, as shown in the pictures in the first post.
     

    #67
  8. pushkaljn
    Honeycomb Jan 21, 2015

    pushkaljn , Jan 21, 2015 :
    Correct...
     

    #68
  9. pushkaljn
    Honeycomb Jan 21, 2015

    pushkaljn , Jan 21, 2015 :
    Method is not right
     

    #69
  10. blackscorpio
    Froyo Jan 21, 2015

    blackscorpio , Jan 21, 2015 :
    What method do you recommended if the curve is between top glass and LCD?
     

    #70
  11. pushkaljn
    Honeycomb Jan 21, 2015

    pushkaljn , Jan 21, 2015 :
    Try this..not sure whether this is full proof.. @blackscorpio
     

    #71
  12. pushkaljn
    Honeycomb Jan 21, 2015

    pushkaljn , Jan 21, 2015 :
    Not sure.. but it won't be tubelight

    Visit service center
     

    #72
    dhirajmishra likes this.
  13. shubhamgulati91
    Honeycomb Jan 21, 2015

    shubhamgulati91 , Jan 21, 2015 :
    Method is absolutely right. Surface reflecting flawless image of any object is the most accurate test of flatness of any surface. There might be some in accuracy with your translucent polythene test but there won't be with reflection test. I could have chosen N number of objects to demonstrate the issue but I chose tube light on purpose so that tubelights one like you will get it on one read. But I see, I have failed miserably.
     

    #73
  14. pushkaljn
    Honeycomb Jan 21, 2015

    pushkaljn , Jan 21, 2015 :
    Bravo...finding ways to call me tubelight..
    Dont want to argue ..
    Visit service center for a check.. if they say its a problem..report to the forum..also ask them if there is a method that users can do themselves..
    Then update all.. hope it make sense to u this time..
     

    #74
    dhirajmishra and shubhamgulati91 like this.
  15. shubhamgulati91
    Honeycomb Jan 21, 2015

    shubhamgulati91 , Jan 21, 2015 :
    Curve cannot be between LCD and glass in the pics I have posted. LCD ends above capacitive buttons, upto where image is reflected without distortions. However, Glass over the plastic front distorts images over the area implies dent is actually on the Glass.
     

    #75
  16. kidrow
    Ice Cream Sandwich Jan 22, 2015

    kidrow , Jan 22, 2015 :
    I acknowledge that this is a double post since I've already posted this on another thread, but it probably has more relevance here. So posting this info here as well so that anyone who stumbles across this thread later will have access to it.

    Okay, so I know architectural glass has such distorted reflections due to the way glass is manufactured. I know this because as someone learning CG/3d art, I know that perfect reflections look fake.

    I'm no glass expert but I did some googling anyway.

    When it comes to tempered/heat-strengthened architectural glass, the phenomenon is pretty much widely accepted by everyone as being normal so long as it is within the industry standard.

    Some snippets from various sources-

    Source- http://www.ravensbyglass.co.uk/File/Data_Sheet-toughened(1).pdf

    Source- http://www.diamondglass.ie/technical/visual-quality/

    Source- http://www.aisglass.com/sites/default/files/pdfs/technical papers/AIS-7.pdf

    Source- https://theglassblog.wordpress.com/2011/01/22/optical-distortion-in-tempered-or-toughened-glass/

    "Reflected Image Distortion in Architectural Glass"
    http://vitrum.ca/cms/wp-content/uploads/2013/05/Vitrum-techbulletin_distortion_v-tb-1-a.pdf

    Now the question is does the same apply to Gorilla glass as well? It seems that gorilla glass is made in 2 stages -
    1. The fusion process -
    2. The Ion Exchange process -
    Source- http://www.deccanchronicle.com/1408.../article/watch-how-gorilla-glass-manufactured

    Now the 2nd part of that process is what is called chemical strengthening which is different from heat/thermal strengthening.

    Unfortunately, there aren't too many resources that discuss visual distortions in chemically strengthened glass. I found a few (not sure how reliable they are) that suggest that chemical strengthening shouldn't cause optical distirtion -

    Source- http://www.xinology.com/Glass-Mirro...engthen/overview/vs-thermal-temper-glass.html

    Source- http://www.bceglass.com/en/marine_glass/iongard.html

    Even if we assume that the 2nd stage doesn't result in visual distortions, there is the question of whether the 1st stage (where the alkali-aluminosilicate glass is created) does.

    The glass itself is ready after the 1st stage itself, only not yet strengthened. (That is my understanding based on a section of an interview quoted below).

    Source- http://www.wbur.org/npr/162790774/the-secret-to-making-ultrastrong-gorilla-glass?ft=3&f=162790774

    There is also the question of the influence of coatings (like the oleophobic coating, for e.g.) that can cause distorted reflections.

    All I'm saying is, the manufacturing process of glass is very involved & there is more to it than meets the eye. I'm not drawing any conclusions because I'm no expert & my knowledge is very limited here. But I hope I've at least provided some food for thought. I also hope that people who feel that the product is defective based on the presence of distorted reflections alone, come to that conclusion (or an alternative one) after doing some more research.

    https://theglassblog.files.wordpress.com/2011/01/optical-distortion.jpg
     

    #76
  17. shubhamgulati91
    Honeycomb Jan 22, 2015


    #77
    kidrow likes this.
  18. blackscorpio
    Froyo Jan 22, 2015


    #78
    kidrow likes this.