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公开(公告)号:US11003208B2
公开(公告)日:2021-05-11
申请号:US16412285
申请日:2019-05-14
Applicant: Apple Inc.
Inventor: Keith J. Hendren , Adam T. Garelli , Bryan W. Posner , Dinesh C. Mathew , Mengyang Liang , Eric Benson , Victor Yin , Jun Qi
IPC: F21V7/04 , G06F1/16 , F21V8/00 , G02F1/1335 , G02F1/13357
Abstract: An electronic device such as a laptop computer or other device may have a housing. A display may be coupled to the housing. The display may have a pixel array configured to display an image. Backlight illumination for the pixel array may be provide by a backlight unit. The backlight unit may have a light guide layer. A light source may provide light to an edge of the light guide layer. The light guide layer may scatter the light outwardly to serve as the backlight illumination for the pixel array. The backlight unit may have optical films interposed between the light guide layer and the pixel array. The optical films may include flexible polymer layers such as diffuser layers and prism films. The optical films may each have a bent alignment portion that bends back on itself while wrapping around an edge of the light guide layer.
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公开(公告)号:US20210072555A1
公开(公告)日:2021-03-11
申请号:US17005199
申请日:2020-08-27
Applicant: Apple Inc.
Inventor: ByoungSuk Kim , Yi Huang , Jun Qi , Victor H. Yin , Seung Wook Kim , Nicolas V. Scapel , Yi-Pai Huang
Abstract: A lenticular display may be formed with convex curvature. The lenticular display may have a lenticular lens film with lenticular lenses that extend across the length of the display. The lenticular lenses may be configured to enable stereoscopic viewing of the display. To enable more curvature in the display while ensuring satisfactory stereoscopic display performance, the display may have stereoscopic zones and non-stereoscopic zones. A central stereoscopic zone may be interposed between first and second non-stereoscopic zones. The non-stereoscopic zones may have more curvature than the stereoscopic zone. To prevent crosstalk within the lenticular display, a louver film may be incorporated into the display. The louver film may have a plurality of transparent portions separated by opaque walls. The opaque walls may control the emission angle of light from the display, reducing crosstalk. The louver film may be interposed between the lenticular lens film and the display panel.
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公开(公告)号:US20200371632A1
公开(公告)日:2020-11-26
申请号:US16422727
申请日:2019-05-24
Applicant: Apple Inc.
Inventor: Hung Sheng Lin , ByoungSuk Kim , Jun Qi
Abstract: Embodiments described herein generally take the form of an electronic device including a primary and secondary display; at least the secondary display is force-sensitive and further has its force-sensing circuitry in-plane with the display. The secondary display and force-sensing circuitry may be encapsulated between two glass layers that are bonded to one another by a frit. In some embodiments the force-sensing circuitry is formed from, or constitutes part of, the frit.
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公开(公告)号:US10739638B2
公开(公告)日:2020-08-11
申请号:US16409688
申请日:2019-05-10
Applicant: Apple Inc.
Inventor: Rong Liu , Yu P. Sun , Erik A. Zweigle , Jun Qi , Victor H. Yin , Ziruo Hong , Sungwon Bae
Abstract: An electronic device may have a display with a backlight. The backlight provides backlight illumination for an array of pixels that is displaying images. The backlight may include an array of cells. Each cell may contain a light source with one or more light-emitting diodes and a cavity reflector that reflects light from the light source outwardly through a diffuser for use in forming the backlight illumination. The light sources may be mounted to a printed circuit. Support posts on the printed circuit may be used to maintain the diffuser at a fixed distance from the printed circuit. Sensors on the printed circuit may be used to measure separation distances between the printed circuit and diffuser. Adjustments to pixel gain profiles can be made based on the measured separation distances.
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公开(公告)号:US10571957B2
公开(公告)日:2020-02-25
申请号:US15076464
申请日:2016-03-21
Applicant: Apple Inc.
Inventor: Dinesh C. Mathew , Keith J. Hendren , Jun Qi , Victor H. Yin , Thomas Wilson, Jr. , Adam T. Garelli
Abstract: An electronic device may have a display. Inactive portions of the display such as peripheral portions of the display may be masked using an opaque masking layer. An opening may be provided in the opaque masking layer to allow light to pass. For example, a logo may be viewed through an opening in the opaque masking layer and a camera may receive light through an opening in the opaque masking layer. The display may include upper and lower polarizers, a color filter layer, and a thin-film transistor layer. The opaque masking layer may be formed on the upper polarizer, may be interposed between the upper polarizer and the color filter layer, or may be interposed between the color filter layer and the thin-film transistor layer. The upper polarizer may have unpolarized windows for cameras, logos, or other internal structures.
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公开(公告)号:US20190285950A1
公开(公告)日:2019-09-19
申请号:US16294723
申请日:2019-03-06
Applicant: Apple Inc.
Inventor: Rong Liu , Daming Xu , Joshua A. Spechler , Jun Qi , Victor H. Yin , Ling Han , Juan He , Ziruo Hong , Mookyung Son , Heesang Suh , Xinyu Zhu
IPC: G02F1/1335
Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a backlight unit. The backlight unit may include a printed circuit board, a plurality of light-emitting diodes mounted on the printed circuit board, at least one light spreading layer formed over the printed circuit board that spreads light received from the plurality of light-emitting diodes, a partially reflective layer formed over the at least one light spreading layer, a color conversion layer formed over the partially reflective layer, a collimating layer formed over the color conversion layer, a brightness enhancement film formed over the collimating layer, and a diffuser formed over the brightness enhancement film. The at least one light spreading layer may include two light spreading layers with elongated protrusions that are rotated relative to each other.
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公开(公告)号:US20190215924A1
公开(公告)日:2019-07-11
申请号:US16353896
申请日:2019-03-14
Applicant: Apple Inc.
Inventor: Mohammad J. Navabi-Shirazi , Alejandro Lara Ascorra , Asif Hussain , Ji Yeoul Ryoo , Jingdong Chen , Jun Qi , Manisha P. Pandya , Yanhui Xie
Abstract: Aspects of the subject technology relate to control circuitry for light-emitting diodes. The control circuitry may operate a light-emitting diode using a multi-peak pulse-width-modulation signal. The control circuitry may include a multi-stage driver having a relatively larger driver stage for providing a direct current through a light-emitting diode and a relatively smaller driver stage configured to cooperate with a pulse-width-modulation controller to pulse-width-modulate a current through the light-emitting diode.
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公开(公告)号:US10310167B2
公开(公告)日:2019-06-04
申请号:US15261972
申请日:2016-09-11
Applicant: Apple Inc.
Inventor: Robert Y. Cao , Craig C. Leong , Bradford J. Zercoe , Dinesh C. Mathew , Mahesh Krishnamurthi , Jun Qi , Rong Liu , Victor H. Yin
Abstract: Described is an illumination structure for a key of a keyboard. The illumination structure is used to uniformly illuminate the key and any glyphs that are present on the key. The illumination structure includes a light guide having various features that increase total internal reflection and also illuminate the glyphs of the key.
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公开(公告)号:US10306729B2
公开(公告)日:2019-05-28
申请号:US15334094
申请日:2016-10-25
Applicant: Apple Inc.
Inventor: Cheng Chen , Jiaying Wu , Lu Zhang , David A. Doyle , Christopher E. Glazowski , Adria Fores Herranz , Chenhua You , Wei Chen , Jun Qi , John Z. Zhong
IPC: H05B33/08 , G09G3/34 , G02F1/1335
Abstract: An electronic device may be provided with a display having a backlight with light sources of different colors. The electronic device may include a color ambient light sensor that measures the color of ambient light and control circuitry that adjusts the color of light emitted from the backlight based on the color of ambient light. The light sources may include at least first and second light-emitting diodes that emit light having different color temperatures. The control circuitry may adjust the intensity of light emitted from the first light-emitting diode relative to the intensity of light emitted from the second light-emitting diode to produce a backlight color that more closely matches the color of ambient light. The first and second light-emitting diodes may include an ultraviolet light-emitting diode die and a blue light-emitting diode die that are mounted in a common semiconductor package.
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公开(公告)号:US10123005B2
公开(公告)日:2018-11-06
申请号:US15048365
申请日:2016-02-19
Applicant: Apple Inc.
Inventor: Mingxia Gu , Andrew P. Aitken , Bongsun Lee , Gabriel Marcu , Ian C. Hendry , Jun Qi , Victor H. Yin , Wei Chen , Yanming Li
Abstract: A display may store extended display identification data for communicating the capabilities of the display to a source device such as a graphics processing unit. The extended display identification data may include a red primary color value, a green primary color value, and a blue primary color value. The primary color values in the extended display identification data may be determined during manufacturing. For example, a light sensor may measure the native primary colors of the display, and calibration computing equipment may determine if the native primary colors of the display are within a target color gamut. If the native primary colors of the display are outside of the target color gamut by an amount larger than a threshold, the primary color values in the extended display identification data may be adjusted to account for the color variation.
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