·The tmd2712 ambient light and proximity light sensor module newly launched by Ames semiconductor integrates IR transmitter, ambient light sensor (ALS) and proximity light sensor, and its size is as small as 1 mm x 2 mm

·Ames semiconductor uses advanced integrated technology to place the screen management sensor and the front camera together in the teardrop shaped gap

·The innovation of sensor operation (including enhanced proximity detection engine) makes it easier to integrate tmd2712 into the ID design of smart phones

China, October 22, 2020 – amsag, the world’s leading supplier of high-performance sensor solutions, announced that it will achieve a higher level of miniaturization of smart phone optical sensors by integrating an ambient light sensor (ALS) and a proximity light sensor module tmd2712 in a 1 mm x 2 mm very small package.

Ames semiconductor introduces the industry's smallest ambient light and proximity light sensor module to maximize the proportion of smart phone screens

The thickness of tmd2712 is only 0.5mm, and it can be placed in the tear drop shaped gap of LCD touch screen together with the self timer camera. In this way, we can support the mobile phone design trend of minimum border or no border – this ID design method can maximize the screen proportion and provide users with the largest visual display area.

The new sensor is a complete system solution for accurate detection of ambient light, supporting display brightness management – to ensure a comfortable visual experience under all lighting conditions, and to provide reliable proximity detection – to turn off the touch screen display when the front of the phone is very close to an object (such as the user’s face). It integrates low power VCSEL transmitter, infrared and visible photodetectors, and related control logic.

With its professional sensor technology, in-depth understanding of ALS and proximity detection applications, and quality assurance under mass production conditions, Ames semiconductor has brought great confidence to smartphone manufacturers in developing the next generation of mobile phones to face severe challenges.

“Tmd2712, an advanced integrated ambient light and proximity light sensor for mobile phones with LCD screen, further enriches customers’ choice of optical sensors for smart phones,” said Jian Liu, strategic project director of integrated optical sensors for Ames semiconductor. From mobile phones equipped with LCD screen to OLED screen, Ames Semiconductor provides advanced products and technologies to promote the implementation of mobile phone borderless design. From the industry’s first under screen ambient light sensing, proximity light detection and light source scintillation detection sensor module tmd3719, to the ambient light and proximity light sensor module tmd2755, which is intended to support the narrow slit design of large air gap, to the latest tmd2712, which is also refreshing the overall dimension record, which is optimized for small air gap, It is used to put the front camera into the water drop shaped gap of the LCD display screen. “

Easy to integrate into smart phone display design

Tmd2712 is easy to integrate into the display assembly, and can accurately measure IR and ambient light. The module’s VCSEL transmitter and photodiode are specially designed to be eccentric, allowing manufacturers to more flexibly combine sensors and other components, such as cameras. The approach light detection engine of the module provides better optical crosstalk suppression, reliable operation over a long distance, wide viewing angle, and no need to use light guide tube, pad or special ink.

By using VCSEL transmitter and power optimization in the module, tmd2712 can reduce the power consumption and minimize the battery power consumption of the sensor. The tmd2712 sensor circuit uses 1.8V power supply and consumes only 0.7V in sleep mode µ A。

Samples of tmd2712als and proximity light sensors are now available. Ames semiconductor can provide evaluation board according to customer requirements.

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