公开(公告)号：US12259276B2

公开(公告)日：2025-03-25

申请号：US17619608

申请日：2020-07-15

Applicant: AMS INTERNATIONAL AG

Inventor： Ruitao Zheng ,  James Archibald

IPC: G01J3/28 ,  G01J3/12 ,  G01J3/51

Abstract: A spectrometer device includes: a substrate including multiple light detector elements; a first filter layer on the substrate, in which the first filter layer includes multiple groups of filter stacks, each filter stack in the first filter layer including multiple dielectric films of alternating refractive index; and a second filter layer on the first filter layer, in which the second filter layer includes multiple groups of filter stacks, each filter stack in the second filter layer including multiple dielectric films of alternating refractive index, in which each filter stack in the second filter layer is aligned with both a corresponding filter stack in the first filter layer and a corresponding light detector element to define a respective photodetector channel, and in which each photodetector channel includes a different optical transmission spectrum.

公开(公告)号：US20220236110A1

公开(公告)日：2022-07-28

申请号：US17617722

申请日：2020-07-16

Applicant: AMS INTERNATIONAL AG

Inventor： James Archibald ,  Doug Nelson ,  Timothy Cogan

IPC: G01J3/50 ,  G01J1/42 ,  G09G3/3208

Abstract: The present disclosure describes a method and apparatus that can be used to determine various characteristics of ambient light when an ambient light sensor is located behind a display screen. The strategy of the disclosure relies, at least in part, on spectral decomposition of ambient light measurements into components (e.g., red, green, and blue components of an Organic Light Emitting Diode (“OLED”) display screen and ambient light). Following the spectral decomposition technique, statistical analysis are performed on the measurement data to remove the OLED light components from the measurement. This technique enables determinations such as ambient lux and correlated color temperature independent of the content displayed on the screen.

公开(公告)号：US12140474B2

公开(公告)日：2024-11-12

申请号：US18000930

申请日：2021-06-01

Applicant: ams International AG

Inventor： Matthew Sampsell ,  George R. Kelly ,  James Archibald

IPC: G09G3/3225 ,  G01J1/02 ,  G01J1/04 ,  G01J1/42 ,  H10K59/60 ,  G01J1/44 ,  H10K59/80

Abstract: A system comprising a display and an ambient light sensing module, the ambient light sensing module being located beneath the display. The display comprises an array of light emitting diodes and a first polarizer located above the display. The sensing module comprises a first sensor and a second sensor, a second polarizer being located above the second sensor.

公开(公告)号：US12163839B2

公开(公告)日：2024-12-10

申请号：US17617722

申请日：2020-07-16

Applicant: AMS INTERNATIONAL AG

Inventor： James Archibald ,  Doug Nelson ,  Timothy Cogan

IPC: G01J3/50 ,  G01J1/42 ,  G09G3/3208

Abstract: The present disclosure describes a method and apparatus that can be used to determine various characteristics of ambient light when an ambient light sensor is located behind a display screen. The strategy of the disclosure relies, at least in part, on spectral decomposition of ambient light measurements into components (e.g., red, green, and blue components of an Organic Light Emitting Diode (“OLED”) display screen and ambient light). Following the spectral decomposition technique, statistical analysis are performed on the measurement data to remove the OLED light components from the measurement. This technique enables determinations such as ambient lux and correlated color temperature independent of the content displayed on the screen.

公开(公告)号：US11588977B2

公开(公告)日：2023-02-21

申请号：US17437258

申请日：2020-03-09

Applicant: ams International AG

Inventor： Doug Nelson ,  George Richard Kelly ,  James Archibald ,  Pradeep Hegde ,  Timothy Cogan

IPC: G09G3/3225 ,  H04N5/235

Abstract: The present disclosure describes a method and apparatus that can be used to adjust for distorted ambient light readings caused by the ambient light sensor being located behind the display screen. The strategy of the disclosure relies, at least in part, on spectral decomposition of ambient light measurements into independent sources (e.g., red, green, and blue display components of an Organic Light Emitting Diode (“OLED”) display screen and ambient light). Following the spectral decomposition technique, a more accurate ambient light measurement can be obtained in some instances. This technique enables determinations such as ambient lux and correlated color temperature independent of the content displayed on the screen.

公开(公告)号：US20220299367A1

公开(公告)日：2022-09-22

申请号：US17619608

申请日：2020-07-15

Applicant: AMS INTERNATIONAL AG

Inventor： Ruitao ZHENG ,  James Archibald

IPC: G01J3/28 ,  G01J3/12 ,  G01J3/51

Abstract: A spectrometer device includes: a substrate including multiple light detector elements; a first filter layer on the substrate, in which the first filter layer includes multiple groups of filter stacks, each filter stack in the first filter layer including multiple dielectric films of alternating refractive index; and a second filter layer on the first filter layer, in which the second filter layer includes multiple groups of filter stacks, each filter stack in the second filter layer including multiple dielectric films of alternating refractive index, in which each filter stack in the second filter layer is aligned with both a corresponding filter stack in the first filter layer and a corresponding light detector element to define a respective photodetector channel, and in which each photodetector channel includes a different optical transmission spectrum.