Photodetector, display device and electronic apparatus comprising the same

A display device, light sensing technology, applied in the direction of measuring device, measuring circuit, photometry, etc., can solve the problem of poor detection accuracy and achieve the effect of reducing the impact

Inactive Publication Date: 2011-03-30
INNOCOM TECH (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the traditional photo-sensing mechanism installed on the display device will be affected by factors such as electrical / electromagnetic noise driven by the display panel and ripple noise (Ripple noise) of the power line, and thus has poor detection accuracy. The problem

Method used

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  • Photodetector, display device and electronic apparatus comprising the same
  • Photodetector, display device and electronic apparatus comprising the same
  • Photodetector, display device and electronic apparatus comprising the same

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Embodiment Construction

[0032] Relevant detailed description and technical contents of the present invention are as follows now in conjunction with the accompanying drawings:

[0033] In order to make the above and other objects, features, advantages and embodiments of the present invention more comprehensible, this specification will specifically illustrate some embodiments. However, it should be noted that these examples are only used to illustrate the implementation mode of the present invention, and are not used to limit the present invention.

[0034] Please refer to figure 1 , which shows an electronic device with a display device according to an embodiment of the present invention. figure 1 The electronic device 100 is used to represent a notebook personal computer (PC), and may also be other devices such as a mobile phone, a watch, a personal digital assistant (PDA), a vehicle navigation system device, a mobile game console, or a large display screen installed outdoors. electronic equipment...

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PUM

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Abstract

Thhe invention discloses a photodetector, a display device comprising the photodetector and an electronic apparatus comprising the display device. The display device can eliminate or reduce a noise effect on a result of detecting ambient light. The display device includes a light detecting device for detecting the ambient light. The light detecting device comprises a light detecting unit, a reference voltage generating unit and a comparing unit. The light detecting unit is configured to generate a light detecting voltage for indicating the intensity of the ambient light. The reference voltage generating unit is configured to generate a predetermined reference voltage. The comparing unit is configured to compare the light detecting voltage with the reference voltage, and includes a first input terminal for allowing the light detecting voltage to be inputted and a second input terminal, which has the polarity opposite to the polarity of the first input terminal, for allowing the predetermined reference voltage to be inputted.

Description

technical field [0001] The present invention relates to a light sensing device, in particular to a display device with the light sensing device to sense ambient light and an electronic device with the display device. Background technique [0002] Display devices generally used in mobile electronic devices such as car navigation devices and mobile phones already have a brightness adjustment function that adjusts display brightness according to the brightness of ambient light. For example, Japanese Patent No. 2001-522058 discloses a display system provided with a brightness controller, which can change the brightness of the display according to the ambient light sensed by the ambient light sensor. With this function, the brightness of the display can be increased in bright places such as daytime or outdoors, and can be reduced in dark places such as nighttime or indoors. [0003] Generally speaking, in order to sense ambient light, a display device is provided with a light se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/10G01J1/42
CPCG01J1/46G09G3/3648G01J1/4204G09G2360/144G09G3/3406
Inventor 松木史朗
Owner INNOCOM TECH (SHENZHEN) CO LTD
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