-
公开(公告)号：US12225751B2
公开(公告)日：2025-02-11
申请号：US18323300
申请日：2023-05-24
Applicant: Apple Inc.
Inventor： Gloria Wong , Jaein Choi , Sunggu Kang , Hairong Tang , Xiaodan Zhu , Wendi Chang , Kanuo C. Kustra , Rui Liu , Cheng Chen , Teruo Sasagawa , Wookyung Bae , Yusuke Fujino , Michael Slootsky
IPC: H10K50/824 , H10K50/818 , H10K59/121 , H10K59/35
Abstract: Pixels in an organic light-emitting diode (OLED) display may be microcavity OLED pixels having optical cavities. The optical cavities may be defined by a partially transparent cathode layer and a reflective anode structure. The anode of the pixels may include both the reflective anode structure and a supplemental anode that is transparent and that is used to tune the thickness of the optical cavity for each pixel. Organic light-emitting diode layers may be formed over the pixels and may have a uniform thickness in each pixel in the display. Pixels may have a conductive spacer between a transparent anode portion and a reflective anode portion, without an intervening dielectric layer. The conductive spacer may be formed from a material such as titanium nitride that is compatible with both anode portions. The transparent anode portions may have varying thicknesses to control the thickness of the optical cavities of the pixels.
-
公开(公告)号：US12170271B2
公开(公告)日：2024-12-17
申请号：US17398952
申请日：2021-08-10
Applicant: Apple Inc.
Inventor： Xiaofan Niu , Sunggu Kang , Mohammad Yeke Yazdandoost , Giovanni Gozzini , Xia Li , Oray O. Cellek , Sandeep Chalasani , Steven E. Molesa , Jaein Choi
Abstract: A micro-light-emitting diode (LED) display includes a number of micro-LED pixel elements and multiple optical sensors integrated with the micro-LED pixel elements. A transparent conductor layer is disposed over the micro-LED pixel elements and optical sensors.
-
公开(公告)号：US20230301131A1
公开(公告)日：2023-09-21
申请号：US18323300
申请日：2023-05-24
Applicant: Apple Inc.
Inventor： Gloria Wong , Jaein Choi , Sunggu Kang , Hairong Tang , Xiaodan Zhu , Wendi Chang , Kanuo C. Kustra , Rui Liu , Cheng Chen , Teruo Sasagawa , Wookyung Bae
IPC: H10K50/818 , H10K50/824 , H10K59/35 , H10K59/121
CPC classification number: H10K50/818 , H10K50/824 , H10K59/35 , H10K59/121
Abstract: Pixels in an organic light-emitting diode (OLED) display may be microcavity OLED pixels having optical cavities. The optical cavities may be defined by a partially transparent cathode layer and a reflective anode structure. The anode of the pixels may include both the reflective anode structure and a supplemental anode that is transparent and that is used to tune the thickness of the optical cavity for each pixel. Organic light-emitting diode layers may be formed over the pixels and may have a uniform thickness in each pixel in the display. Pixels may have a conductive spacer between a transparent anode portion and a reflective anode portion, without an intervening dielectric layer. The conductive spacer may be formed from a material such as titanium nitride that is compatible with both anode portions. The transparent anode portions may have varying thicknesses to control the thickness of the optical cavities of the pixels.
-
公开(公告)号：US11145700B2
公开(公告)日：2021-10-12
申请号：US16745055
申请日：2020-01-16
Applicant: Apple Inc.
Inventor： Jaein Choi , Hairong Tang , Gloria Wong , Sunggu Kang , Younggu Lee , Gwanwoo Park , Chun-Yao Huang , Andrew Lin , Cheuk Chi Lo , Enkhamgalan Dorjgotov , Michael Slootsky , Rui Liu , Wendi Chang , Cheng Chen
Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have an undercut to disrupt continuity of some but not all of the OLED layers. The undercut may be defined by three discrete portions of the pixel definition layer. The undercut may result in a void that is interposed between different portions of the OLED layers to break a leakage path formed by the OLED layers.
-
公开(公告)号：US20200066815A1
公开(公告)日：2020-02-27
申请号：US16604491
申请日：2018-04-27
Applicant: Apple Inc.
Inventor： Jaein Choi , Andrew Lin , Cheuk Chi Lo , Chun-Yao Huang , Gloria Wong , Hairong Tang , Hitoshi Yamamoto , James E. Pedder , KiBeom Kim , Kwang Ohk Cheon , Lei Yuan , Michael Slootsky , Rui Liu , Steven E. Molesa , Sunggu Kang , Wendi Chang , Chun-Ming Tang , Cheng Chen , Ivan Knez , Enkhamgalan Dorjgotov , Giovanni Carbone , Graham B. Myhre , Jungmin Lee
Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have a steep sidewall, a sidewall with an undercut, or a sidewall surface with a plurality of curves to disrupt continuity of the OLED layers. A control gate that is coupled to a bias voltage and covered by gate dielectric may be used to form an organic thin-film transistor that shuts the leakage current channel between adjacent anodes on the display.
-
Patent Agency Ranking
公开(公告)号：US20230307488A1
公开(公告)日：2023-09-28
申请号：US18161763
申请日：2023-01-30
Applicant: Apple Inc.
Inventor： Young Cheol Yang , Young Seok Kim , Aaron L Holsteen , Cheng Cheng , Chin Wei Hsu , Hsin I Lu , Ileana G. Rau , Jaein Choi , James M Perkins , James P Ibbetson , Joy M Johnson , Jui-Chih Liao , Steven E Molesa , Sunggu Kang , Yang Deng , Zhibing Ge
CPC classification number: H01L27/156 , H01L33/58 , H01L2933/0091
Abstract: An electronic device may have a display with an array of inorganic light-emitting diodes. The array of inorganic light-emitting diodes may be overlapped by a polarizer layer such as a circular polarizer. Alternatively, the display may be a polarizer-free display without any polarizer layer over the array of inorganic light-emitting diodes. Each inorganic light-emitting diode may be surrounded by a diffuser that redirects edge-emissions towards a viewer. A top diffuser, a color filter layer, a microlens, and/or a microlens with color filtering and/or diffusive properties may also optionally overlap each inorganic light-emitting diode. The inorganic light-emitting diodes may have reflective sidewalls to mitigate edge-emissions. In this type of arrangement, the array of inorganic light-emitting diodes may be coplanar with one or more opaque masking layers. To mitigate reflections, the display may include two opaque masking layers having differing properties or a single phase separated opaque masking layer.
-
公开(公告)号：US20220005894A1
公开(公告)日：2022-01-06
申请号：US17475756
申请日：2021-09-15
Applicant: Apple Inc.
Inventor： Jaein Choi , Hairong Tang , Gloria Wong , Sunggu Kang , Younggu Lee , Gwanwoo Park , Chun-Yao Huang , Andrew Lin , Cheuk Chi Lo , Enkhamgalan Dorjgotov , Michael Slootsky , Rui Liu , Wendi Chang , Cheng Chen
Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have an undercut to disrupt continuity of some but not all of the OLED layers. The undercut may be defined by three discrete portions of the pixel definition layer. The undercut may result in a void that is interposed between different portions of the OLED layers to break a leakage path formed by the OLED layers.
-
公开(公告)号：US11757074B2
公开(公告)日：2023-09-12
申请号：US17225796
申请日：2021-04-08
Applicant: Apple Inc.
Inventor： Jaein Choi , Joy M. Johnson , Lai Wang , Ben-Li Sheu , Hairong Tang , Steven E. Molesa , Sunggu Kang , Young Cheol Yang
IPC: H01L33/58 , H10K50/854 , H10K50/858 , H10K50/86
CPC classification number: H01L33/58 , H10K50/854 , H10K50/858 , H10K50/865 , H01L2933/0091
Abstract: To extract light from a light-emitting diode (and thereby improve efficiency of the display), a microlens stack may be formed over the light-emitting diode. The microlens stack may include an array of microlenses that is covered by an additional single microlens. Having stacked microlenses in this way increases lens power without increasing the thickness of the display. The array of microlenses may be formed from an inorganic material whereas the additional single microlens may be formed from an organic material. The additional single microlens may conform to the upper surfaces of the array of microlenses. An additional low-index layer may be interposed between the light-emitting diode and the array of microlenses. A diffusive layer may be formed around the light-emitting diode to capture light emitted from the light-emitting diode sidewalls.
-
公开(公告)号：US11700738B2
公开(公告)日：2023-07-11
申请号：US16888451
申请日：2020-05-29
Applicant: Apple Inc.
Inventor： Gloria Wong , Jaein Choi , Sunggu Kang , Hairong Tang , Xiaodan Zhu , Wendi Chang , Kanuo C. Kustra , Rui Liu , Cheng Chen , Teruo Sasagawa , Wookyung Bae
IPC: H01L51/52 , H10K50/824 , H10K50/818 , H10K59/35 , H10K59/121
CPC classification number: H10K50/818 , H10K50/824 , H10K59/121 , H10K59/35
Abstract: Pixels in an organic light-emitting diode (OLED) display may be microcavity OLED pixels having optical cavities. The optical cavities may be defined by a partially transparent cathode layer and a reflective anode structure. The anode of the pixels may include both the reflective anode structure and a supplemental anode that is transparent and that is used to tune the thickness of the optical cavity for each pixel. Organic light-emitting diode layers may be formed over the pixels and may have a uniform thickness in each pixel in the display. Pixels may have a conductive spacer between a transparent anode portion and a reflective anode portion, without an intervening dielectric layer. The conductive spacer may be formed from a material such as titanium nitride that is compatible with both anode portions. The transparent anode portions may have varying thicknesses to control the thickness of the optical cavities of the pixels.
-
公开(公告)号：US11309372B2
公开(公告)日：2022-04-19
申请号：US16604491
申请日：2018-04-27
Applicant: Apple Inc.
Inventor： Jaein Choi , Andrew Lin , Cheuk Chi Lo , Chun-Yao Huang , Gloria Wong , Hairong Tang , Hitoshi Yamamoto , James E. Pedder , KiBeom Kim , Kwang Ohk Cheon , Lei Yuan , Michael Slootsky , Rui Liu , Steven E. Molesa , Sunggu Kang , Wendi Chang , Chun-Ming Tang , Cheng Chen , Ivan Knez , Enkhamgalan Dorjgotov , Giovanni Carbone , Graham B. Myhre , Jungmin Lee
Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have a steep sidewall, a sidewall with an undercut, or a sidewall surface with a plurality of curves to disrupt continuity of the OLED layers. A control gate that is coupled to a bias voltage and covered by gate dielectric may be used to form an organic thin-film transistor that shuts the leakage current channel between adjacent anodes on the display.
-
-
-
-
-
-
-
-
-
Search Results
21
records
(took 0.015 seconds)
