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light sensor

GLS6155 – High-Precision Light Sensor for Under OLED Display Applications


With Charge-type architecture, GLS6155 comes with features of high sensitivity and extremely low dark current noise. Through high-speed sampling, it captures the blanking of the screen in a very short period. Thus, it minimizes the interference of screen light and allows hardware-level high-precision measurement of correlated color temperature and illuminance. It also supports algorithm-based screen light interference reduction solution, which allows software-level high-precision measurement of correlated color temperature and illuminance. Placing LED or VCSEL in the ultra-narrow bezel of a device allows unrestricted proximity sensing; if the LED or VCSEL light source is placed under the screen, proximity sensing in the off-screen state can be achieved, and the proximity sensing in the on-screen state can be achieved with screen touch controller.


  • High-precision under display ambient light measurement

    1. Supports correlated color temperature and illuminance measurement
    2. Integrated high-sensitivity Red, Green, Blue, Clear, and Wide-band channels
    3. Programmable gain and integration time
    4. Capture the display synchronization signal VSYNC
    5. Up to 10 KHz sampling rate
    6. Integrated hardware-level light leakage processing module
  • High-performance under display proximity sensing

    1. High sensitivity IR channel
    2. Programmable PWM emitter driver
  • Small package size

    1. 1.36 mm * 2.35 mm * 0.69 mm CSP package

System Block Diagram

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