Tuesday, June 04, 2019

How Under-Display Selfie Camera Works

DeviceSpecifications: Xiaomi SVP Wang Xiang explained how a smartphone selfie camera works from under display occupying the whole front surface:


Update: Chinese-language site IT Home publishes a demo of Xiaomi under-display camera:



Update #2: Mashable publishes a video on Xiaomi and Oppo demos of under-display camera:



Here is the official high quality Xiaomi video:

Posted by Vladimir Koifman at 22:28

7 comments:

  1. AnonymousJune 5, 2019 at 2:21 AM

    When is this expected to hit the market?

    ReplyDelete
    Replies
    1. Vladimir KoifmanJune 5, 2019 at 6:48 AM

      Everybody talks about it. It appears to be imminent.

      Delete
  2. AnonymousJune 5, 2019 at 7:38 AM

    Pixels must be huge to compensate for loss of light through the display.
    Since the sensor would be huge, the module depth must be large to accommodate the increase in sensor size and lens, would this thus suggest the rear would have a bump?
    Are the pixels briefly turned off in and around the lens to avoid false sensor illumination?

    ReplyDelete
    Replies
    1. Vladimir KoifmanJune 5, 2019 at 7:51 AM

      They claim that their special display can be made transparent over camera. In any case, with their selfie camera resolution of 20MP, pixels can't be huge.

      Delete
    2. Guy MeynantsJune 6, 2019 at 9:55 AM

      even more, they claim that the display doubles as part of the camera lens stack. Did they use some clever routing design of the electrodes in the OLED? Standard oled electrode routing would diffract light and make it worse to get an image below it.

      Delete
  3. Frédéric BERIERJune 5, 2019 at 11:40 AM

    They do not explain how a layer can be switch transparent? Do they use liquid cristal? The Oled display is more or less transparent, underdisplay optical fingerprint sensors work well, but it diffracts the light. So I'm not fully convinced...

    ReplyDelete
  4. UnknownJune 6, 2019 at 11:39 AM

    i think it's more produciable than OPPO's solution. Xiaomi need to improve the oled's transmittance. But OPPO's solution need extremely high assemble process, which have a expense of low yield.

    ReplyDelete

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