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Light sensor testing device and testing method

A light sensor, electronic device technology, applied in measurement devices, photometry, optical radiation measurement, etc., can solve problems such as waste, screen splash, return or exchange, etc.

Active Publication Date: 2017-09-22
SHANGHAI CHANGLIAN ZHIRONG COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above problems, when the ambient brightness does not change, but the output of the light sensor changes up and down, the brightness of the backlight is also adjusted continuously, making consumers feel that there is a flickering phenomenon, thinking that there is a problem with the display screen, which leads to Returning or exchanging goods, etc., causing unnecessary waste

Method used

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  • Light sensor testing device and testing method
  • Light sensor testing device and testing method
  • Light sensor testing device and testing method

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Embodiment Construction

[0016] see figure 1 As shown, the device for testing the light sensor of the present invention is used to test the performance of the light sensor of the electronic device. The device for testing the light sensor includes a storage unit, a light source located inside the storage unit, and a light source connected to the light source A brightness control unit and a data acquisition module for collecting the output value of the light sensor under test.

[0017] In practice, the above storage unit is a box made of copper, aluminum or iron, with a cover on the front that can be opened, and is airtight and opaque when closed. The light source can be an illuminating lamp (such as an LED lamp), which is arranged on the top of the storage unit, and the power supply line of the light source is drawn from the storage unit and connected with the light source brightness control unit, which provides the light source power and controls the light source. The output intensity of the light so...

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Abstract

The invention discloses a device and method for testing light sensors, which are used to test the performance of light sensors of electronic devices. The device for testing light sensors includes a storage unit, a light source arranged inside the storage unit, and a light source connected to the light source A brightness control unit and a data acquisition module for collecting the output value of the light sensor under test. The present invention linearly changes the brightness of the light source through the brightness control unit of the light source, and collects the output value of the light sensor under test. According to whether the output value of the light sensor under test is Linearity to judge whether the performance of the light sensor is stable or abnormal.

Description

【Technical field】 [0001] The invention belongs to the field of electronic testing, in particular to a testing device for testing light sensors. 【Background technique】 [0002] Existing mobile phones or tablet terminal devices basically have a light sensor, which has become a standard function of smart phones or tablets. [0003] However, due to some performance reasons, the output of some light sensors is not stable under certain ambient light, resulting in flickering of the screen backlight when the automatic backlight brightness adjustment mode is turned on. The working principle of the mobile phone with the automatic adjustment of backlight brightness mode turned on is that when the light sensor detects that the brightness of the external environment becomes brighter, the software controls the backlight chip to adjust the brightness of the backlight to allow consumers to clearly see the display content; There should be no change in the light sensor output, and thus no ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/00
Inventor 姚军徽
Owner SHANGHAI CHANGLIAN ZHIRONG COMM TECH