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公开(公告)号：US20220206200A1
公开(公告)日：2022-06-30
申请号：US17134158
申请日：2020-12-24
摘要： A light emitting structure includes a pixel layer having at least one subpixel, a microlens layer having at least one microlens, the at least one microlens aligned with the at least one subpixel for providing a narrowly-confined on-axis emission profile along an on-axis direction, a first filler material layer and a second filler material layer between the pixel layer and the microlens layer, an interface between the first filler material layer and the second filler material layer configured for reflecting a portion of off-axis emissions from the at least one subpixel by total internal reflection (TIR).
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公开(公告)号：US20230204963A1
公开(公告)日：2023-06-29
申请号：US18120176
申请日：2023-03-10
CPC分类号： G02B27/0172 , G02B5/3083 , G02B5/3033 , G02F1/137
摘要： An optical system and, specifically an HMD, is disclosed for increasing brightness efficiency of light transmitted from a display. By including one polarization selective mirror between a half mirror and a display and another polarization selective mirror between the half mirror and a lens, brightness efficiency is increased without a substantial increase in thickness.
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公开(公告)号：US20220173359A1
公开(公告)日：2022-06-02
申请号：US17109133
申请日：2020-12-01
摘要： A light emitting structure comprises a substrate, a plurality of sub-pixel stacks over the substrate emitting different colors, a bank surrounding the sub-pixel stacks and forming an interior space above the sub-pixel stacks, a first filler material in the interior space, a second filler material over the first filler material, and an interface between the first filler material and the second filler material. Each of the sub-pixel stacks including an emissive layer between a first transport layer and a second transport layer, a first electrode layer coupled to the first transport layer, and a second electrode layer coupled to the second transport layer. The sub-pixel stacks each have a substantially uniform distance between the emissive layer and the first electrode layer. Each of the sub-pixel stacks emits a main emission peak at one direction normal to a top surface of each of the sub-pixel stacks through the interface.
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公开(公告)号：US20210313485A1
公开(公告)日：2021-10-07
申请号：US16840261
申请日：2020-04-03
摘要： A light emitting structure comprises a substrate, a sub-pixel stack over a surface of the substrate, and a bank surrounding the sub-pixel stack on the substrate. The light emitting structure also comprises a first filler material in the interior space, and a second filler material over the first filler material. The sub-pixel stack emits a first emission peak along an on-axis direction substantially normal to a top surface of the stack and emits a second emission peak along an off-axis direction at an angle to the on-axis direction. The first emission peak is emitted through an interface between the first filler material and the second filler material substantially without total internal reflection. The second emission peak is totally internally reflected by the interface before reaching a sloped sidewall of the bank and is emitted along the on-axis direction.
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公开(公告)号：US20210399263A1
公开(公告)日：2021-12-23
申请号：US16908659
申请日：2020-06-22
摘要： A light emitting structure comprises a bank surrounding a sub-pixel stack on a substrate, a first filler material in an interior space above the sub-pixel stack, and a second filler material over the first filler material. The sub-pixel stack emits a first emission peak along an on-axis direction substantially normal to a top surface of the sub-pixel stack and through an interface between the first and second filler materials. The sub-pixel stack emits a second emission peak along an off-axis direction that is totally internally reflected by the interface before reaching a sloped sidewall of the bank and is then emitted along the on-axis direction. An emissive area of the sub-pixel stack is configured such that the second emission peak is reflected by the interface not more than once before reaching the sloped sidewall.
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公开(公告)号：US20210389619A1
公开(公告)日：2021-12-16
申请号：US17333390
申请日：2021-05-28
IPC分类号： G02F1/1368 , G02F1/1343 , G02F1/1362 , G02F1/133
摘要： An LCD apparatus includes a first substrate and a second substrate. A first TFT array is deposited on the first substrate. A first array of drive electrodes is also deposited on the first substrate. A second TFT array is deposited on the second substrate. A second array of drive electrodes is deposited on the second substrate. The first TFT array, the second TFT array, the first array of drive electrodes and the second array of drive electrodes are configured to enable pixels or sub-pixels of the LCD apparatus to modulate light. The first TFT array may at least partially overlap the second TFT array, and the first array of drive electrodes may at least partially overlap the second array of drive electrodes, from an LCD viewing perspective.
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公开(公告)号：US20220399526A1
公开(公告)日：2022-12-15
申请号：US17347995
申请日：2021-06-15
摘要： A light-emitting structure includes a substrate, a sub-pixel stack, a cover layer over the sub-pixel stack, and at least one interface between the substrate and the cover layer. The at least one interface has an interface roughness. The sub-pixel stack includes an emissive layer between a first transport layer and a second transport layer, a first electrode layer coupled to the first transport layer, and a second electrode layer coupled to the second transport layer. The sub-pixel stack is over the substrate and configured to emit light including a scattering component caused by the interface roughness and a cavity component separate from the scattering component. A ratio of a luminance of the scattering component to a luminance of the cavity component increases with a viewing angle relative to a display normal. An optical power of the scattering component is a fraction of an optical power of the cavity component.
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公开(公告)号：US20220382100A1
公开(公告)日：2022-12-01
申请号：US17329774
申请日：2021-05-25
IPC分类号： G02F1/1335 , G02F1/13363
摘要： A composite lens system may include one or more first optical elements configured to provide a first focal length selected from a first continuous range of focal lengths, as well as one or more second optical elements configured to provide a discrete focal length selected from a plurality of discrete focal lengths. The one or more first optical elements and the one or more second optical elements may be configured in series such that the composite lens system provides an output focal length based on a combination of the selected first focal length and the selected discrete focal length.
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公开(公告)号：US20220367837A1
公开(公告)日：2022-11-17
申请号：US17320040
申请日：2021-05-13
摘要： A light-emitting structure includes a substrate, a sub-pixel stack over a surface of the substrate, and a bank including a first bank portion and a second bank portion. The sub-pixel stack has an emissive stack including an emissive layer between a first transport layer and a second transport layer, a first electrode layer coupled to the first transport layer, and a second electrode layer coupled to the second transport layer. The second bank portion is between the first bank portion and the sub-pixel stack, and the bank surrounding at least the emissive stack and the first electrode layer forms an interior space above the sub-pixel stack.
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公开(公告)号：US20220320190A1
公开(公告)日：2022-10-06
申请号：US17220349
申请日：2021-04-01
摘要： A light emitting structure comprises a substrate, a sub-pixel stack over a surface of the substrate, a bank surrounding the sub-pixel stack and forming an interior space above the sub-pixel stack, a first material filling the interior space and having a first refractive index, and a second material over the first material and having a second refractive index substantially higher than the first refractive index. The sub-pixel stack comprises an emissive layer between a first transport layer and a second transport layer, a first electrode layer coupled to the first transport layer, and a second electrode layer coupled to the second transport layer. The second electrode layer has a third refractive index substantially matched to the first refractive index.
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