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1. 发明授权

US09804441B2 Electronic device optical sensing system with stray light suppression 有权
公开(公告)号：US09804441B2
公开(公告)日：2017-10-31
申请号：US15055377
申请日：2016-02-26
申请人： Apple Inc.
发明人： Zhang Jia , James J. Dudley , Katherine J. Spriggs , William A. Tashman
IPC分类号： G02F1/1333 , G02F1/1335 , G02B5/00 , G02F1/1368
CPC分类号： G02F1/1336 , G02B5/003 , G02F1/133308 , G02F1/133502 , G02F1/133512 , G02F1/133514 , G02F1/1368 , G02F2001/13312 , G02F2001/133601 , G02F2001/133612
摘要： An electronic device display may have an active area with an array of pixels and an inactive area. A light-transmitting window may be formed in the inactive area. A light-sensing component such as an ambient light sensor may be mounted within the housing in alignment with the window. Opaque masking material may be provided on one or more layers of the display in the inactive area and may have an opening for the window. Backlight structures in the display may generate backlight illumination for pixels in the active area. Stray portions of the backlight illumination may be blocked using a stray light absorption layer on one of the layers of the display such as a layer other than the layer on which the opaque masking material is formed. The stray light absorption layer may have an opening aligned with the window.

2. 发明授权

US10838126B2 Electronic devices with infrared blocking filters 有权
公开(公告)号：US10838126B2
公开(公告)日：2020-11-17
申请号：US15630830
申请日：2017-06-22
申请人： Apple Inc.
发明人： Ligang Wang , Zhang Jia , Serhan O. Isikman
IPC分类号： G02B5/20 , G02B5/28
CPC分类号： G02B5/282 , G02B5/285
摘要： An electronic device may be provided with one or more light-sensing components such as a camera and a color ambient light sensor. Optical structures such as camera lenses or a light pipe may be used to convey light from a window in an electronic device to a light-sensing component. One or more infrared-light-blocking-and-visible-light transmitting light filters may be interposed between a light-receiving window in an electronic device and a light-sensing component. The light filters may include infrared-light-blocking glass substrates, silver or other infrared-light-blocking thin films, and/or thin-film interference filters formed from stacks of dielectric layers that serve as infrared light-blocking layers.

3. 发明授权

US10580341B2 Electronic device with color sensing ambient light sensor 有权
公开(公告)号：US10580341B2
公开(公告)日：2020-03-03
申请号：US14870924
申请日：2015-09-30
申请人： Apple Inc.
发明人： Zhang Jia , Christopher S. Erickson
IPC分类号： G09G3/20 , G01J1/04 , G01J3/02 , G01J3/51 , G01J1/42 , G01J1/32 , G01J3/46
摘要： An electronic device may be provided with a display mounted in a housing. A color sensing ambient light sensor may measure the color of ambient light. The color sensing ambient light sensor may be mounted in alignment with an ambient light sensor window formed in an inactive area of the display. The color sensing ambient light sensor may be formed from detectors on a semiconductor substrate. The detectors may include detectors that have spectral sensitivity profiles matching those of color matching functions. The color sensing ambient light sensor may include an infrared light detector. Light redirecting structures such as a diffuser, prism film, negative lens film, or privacy film may be used in directing light into the ambient light sensor. The color sensing ambient light sensor may be calibrated by exposing the sensor to light sources of different types.

4. 发明授权

US10094708B2 Light sensor windows for electronic devices 有权
公开(公告)号：US10094708B2
公开(公告)日：2018-10-09
申请号：US15481313
申请日：2017-04-06
申请人： Apple Inc.
发明人： Zhang Jia , Christopher S. Erickson , James J. Dudley , Kenichi Nakajima , Chunji Li
IPC分类号： G01J1/04 , G01J1/42 , G01J1/02 , G06F3/041 , G09G5/00 , G09G5/10
摘要： An electronic device may be provided with light sensors. The electronic device may have an electronic device housing in which a display is mounted. The display may have a transparent layer such as a transparent display cover layer, a thin-film transistor layer, or a color filter layer. An opaque masking layer such as a layer of black ink may be used to cover an inner surface of the transparent layer in an inactive area of the display. Sensor window openings may be formed in the black ink layer. A layer of ink may be formed in each sensor window opening. Each layer of ink may have a diffuse reflectivity that is matched to that of the black ink. A diffuser layer such as a polymer coating layer with light-scattering particles may be coated on the inner surface of the layer of ink in a sensor window opening.

5. 发明申请

US20170271427A1 Color-Insensitive Window Coatings for Ambient Light Sensors 审中-公开
公开(公告)号：US20170271427A1
公开(公告)日：2017-09-21
申请号：US15071119
申请日：2016-03-15
申请人： Apple Inc.
发明人： Kenichi Nakajima , James R. Wilson , Zhang Jia
IPC分类号： H01L27/32 , H01L51/52
摘要： An electronic device may have a display with a transparent layer such as a cover layer. An ambient light sensor may be aligned with an ambient light sensor window formed from an opening in a masking layer on the transparent layer in an inactive portion of the display. To help mask the ambient light sensor window from view, the ambient light sensor window may be provided with a black coating that matches the appearance of surrounding masking layer material while allowing light to reach the ambient light sensor. The black coating may include multiple pigments and may have a flat spectrum to enhance color ambient light measurements made with the ambient light sensor. The black coating may include a polymer binder or other binder that contains multiple pigments. The pigments may include a black pigment, a blue pigment, and an infrared-light-transparent pigment and/or other pigments.

6. 发明申请

US20160370231A1 Adaptive Calibration for Ambient Light Sensors 有权
标题翻译：环境光传感器的自适应校准
公开(公告)号：US20160370231A1
公开(公告)日：2016-12-22
申请号：US14862026
申请日：2015-09-22
申请人： Apple Inc.
发明人： Farnaz Agahian , Jiaying Wu , Zhang Jia , Cheng Chen
IPC分类号： G01J3/50 , G09G3/20 , G01J3/46
CPC分类号： G09G3/2003 , G01J1/4204 , G01J3/50 , G01J3/505 , G01J2003/467 , G09G2320/0233 , G09G2320/0242 , G09G2320/0693 , G09G2340/06 , G09G2360/144
摘要： An electronic device may be provided with a display mounted in a housing. A color sensing ambient light sensor may measure the color of ambient light. The color sensing ambient light sensor may produce sensor output signals in a device-dependent color space. Control circuitry in the electronic device may convert the sensor output signals from the device-dependent color space to a device-independent color space using a color converting matrix. The color converting matrix may be determined using stored training data. The training data may include color data for different training light sources. The training data may be weighted to selectively control the influence of the training data on the color converting matrix. The training data may be weighted based on a distance between the training color data and a target color in the detected ambient light.
摘要翻译：电子设备可以设置有安装在壳体中的显示器。颜色感测环境光传感器可以测量环境光的颜色。颜色感测环境光传感器可以在依赖于设备的色彩空间中产生传感器输出信号。电子设备中的控制电路可以使用颜色转换矩阵将来自设备相关颜色空间的传感器输出信号转换为与设备无关的颜色空间。可以使用存储的训练数据来确定颜色转换矩阵。训练数据可以包括用于不同训练光源的颜色数据。训练数据可以被加权以选择性地控制训练数据对颜色转换矩阵的影响。可以基于检测到的环境光中的训练颜色数据和目标颜色之间的距离来加权训练数据。

7. 发明授权

US10788361B2 Electronic device with obstruction-sensing color ambient light sensor 有权
公开(公告)号：US10788361B2
公开(公告)日：2020-09-29
申请号：US15461302
申请日：2017-03-16
申请人： Apple Inc.
发明人： Tianbo Sun , Brian R. Land , Dong Zheng , Serhan O. Isikman , Venkata Siva Sunil Kumar Reddy Bommu , Zhang Jia
IPC分类号： G01J1/42 , G06K9/46 , G09G5/02 , G06F3/03
摘要： An electronic device may have a housing in which a display is mounted. The display may have an active area in which images are displayed by an array of pixels and an inactive area that is free of pixels. A color ambient light sensor may make color and luminance measurements on ambient light received through an ambient light sensor window in the inactive area of the display or elsewhere in the electronic device. The color ambient light sensor may have color ambient light sensor elements of different colors. The ambient light sensor elements may extend in a row along an edge of the display or may have other configurations. Analog-to-digital converter circuitry and switching circuitry may gather color ambient light sensor measurements and measurements indicative of whether or not the color ambient light sensor has been obscured by an external object from the light sensor elements.

8. 发明授权

US10288476B2 Ambient light sensor window coatings for electronic devices 有权
公开(公告)号：US10288476B2
公开(公告)日：2019-05-14
申请号：US15293204
申请日：2016-10-13
申请人： Apple Inc.
发明人： Zhang Jia , Naoto Matsuyuki , Matthew S. Rogers
IPC分类号： G01J1/04 , G01J1/42 , G02B1/115 , G09F9/00 , G02B1/116 , G01J1/02 , G01J3/02 , G01J3/50
摘要： An electronic device may have a display with a cover layer. An ambient light sensor may be aligned with an ambient light sensor window formed from an opening in a masking layer on the cover layer in an inactive portion of the display. To help mask the ambient light sensor window from view, the ambient light sensor window may be provided with a black coating that matches the appearance of surrounding masking layer material while allowing light to reach the ambient light sensor. The black coating may be formed from a black physical vapor deposition thin-film inorganic layer with a high index of refraction. An antireflection layer formed from a stack of dielectric layers may be interposed between the black thin-film inorganic layer and the display cover layer.

9. 发明申请

US20180081100A1 Electronic Devices with Infrared Blocking Filters 审中-公开
公开(公告)号：US20180081100A1
公开(公告)日：2018-03-22
申请号：US15630830
申请日：2017-06-22
申请人： Apple Inc.
发明人： Ligang Wang , Zhang Jia , Serhan O. Isikman
IPC分类号： G02B5/28
CPC分类号： G02B5/282 , G02B5/285
摘要： An electronic device may be provided with one or more light-sensing components such as a camera and a color ambient light sensor. Optical structures such as camera lenses or a light pipe may be used to convey light from a window in an electronic device to a light-sensing component. One or more infrared-light-blocking-and-visible-light transmitting light filters may be interposed between a light-receiving window in an electronic device and a light-sensing component. The light filters may include infrared-light-blocking glass substrates, silver or other infrared-light-blocking thin films, and/or thin-film interference filters formed from stacks of dielectric layers that serve as infrared light-blocking layers.

10. 发明申请

US20170176787A1 Electronic Device Optical Sensing System with Stray Light Suppression 有权
公开(公告)号：US20170176787A1
公开(公告)日：2017-06-22
申请号：US15055377
申请日：2016-02-26
申请人： Apple Inc.
发明人： Zhang Jia , James J. Dudley , Katherine J. Spriggs , William A. Tashman
IPC分类号： G02F1/1335 , G02F1/1368 , G02B5/00
CPC分类号： G02F1/1336 , G02B5/003 , G02F1/133308 , G02F1/133502 , G02F1/133512 , G02F1/133514 , G02F1/1368 , G02F2001/13312 , G02F2001/133601 , G02F2001/133612
摘要： An electronic device display may have an active area with an array of pixels and an inactive area. A light-transmitting window may be formed in the inactive area. A light-sensing component such as an ambient light sensor may be mounted within the housing in alignment with the window. Opaque masking material may be provided on one or more layers of the display in the inactive area and may have an opening for the window. Backlight structures in the display may generate backlight illumination for pixels in the active area. Stray portions of the backlight illumination may be blocked using a stray light absorption layer on one of the layers of the display such as a layer other than the layer on which the opaque masking material is formed. The stray light absorption layer may have an opening aligned with the window.

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