Gamma correction - lcd

Discussion in 'General Electronics Chat' started by leoss, Feb 12, 2012.

  1. leoss

    Thread Starter New Member

    Jan 17, 2012
    14
    0
    Dear all,
    could you please someone explain me how gamma correction in lcd TVs works? I know that there are some reference voltages and RGB signals which are going to DAC. But I do not principle how it works.
    Thanks
     
  2. holnis

    Member

    Nov 25, 2011
    50
    4
    I don't know much, And actually gamma may not be something simple to define,But It’s definitely a good thing that when you buy a new LCD TV, you are not required to calibrate the gamma. This would be quite frustrating and impossible for most. The TV manufacturer does the initial tough work by setting the transfer function of the source driver DACs such that the panel has their desired non-linear gamma response.

    You can find more informations here about the Gamma correction :

    http://en.wikipedia.org/wiki/Gamma_correction

    And about the RGB color model :

    http://en.wikipedia.org/wiki/RGB_color_model
     
  3. leoss

    Thread Starter New Member

    Jan 17, 2012
    14
    0
    Thanks holnis, I now these basic things, but I want to know some more details. Have someone more information, please?
    Thanks
     
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