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Light emitting module and method of driving the same, and optical sensor

  • US 7,068,246 B2
  • Filed: 06/11/2001
  • Issued: 06/27/2006
  • Est. Priority Date: 06/12/2000
  • Status: Expired due to Term
First Claim
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1. A light emitting module comprising:

  • a light emitting device comprising a pixel section and a sensor section which are formed on a same insulating body; and

    a correction circuit connected to the light emitting device, wherein said correction circuit adjusts luminance of a light emitting element of the pixel section according to environmental illuminance sensed by the sensor section and for keeping a ratio of the luminance to the environmental illuminance at a constant value by the correction circuit, wherein said sensor section is disposed outside said pixel section, and wherein said sensor section comprises at least one optical sensor comprising a photodiode, a reset TFT, a buffer TFT and a constant current TFT.

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