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公开(公告)号：US10665755B2
公开(公告)日：2020-05-26
申请号：US16416265
申请日：2019-05-19
发明人： Li-Yi Chen
摘要： A method for manufacturing a light emitting device is provided. The method includes: preparing a growth substrate with at least one dislocation-controlling feature thereon; sequentially growing a second type semiconductor layer, an active layer, and a first type semiconductor layer on the dislocation-controlling feature, wherein the active layer has a first region and at least one second region, and the dislocation-controlling feature causes a threading dislocation density of the first region to be greater than a threading dislocation density of the second region; and modifying a resistivity of the first type semiconductor layer, so that the resistivity of the first type semiconductor layer increases from a plurality of low resistance portions toward a high resistance portion of the first type semiconductor layer.
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公开(公告)号：US10665493B1
公开(公告)日：2020-05-26
申请号：US16181365
申请日：2018-11-06
发明人： Li-Yi Chen
IPC分类号： H01L21/683
摘要： An electrostatic chuck including a body, an electrode, at least one dielectric layer, and a composite dielectric layer is provided. The electrode is present on the body. The dielectric layer is present on and covers the electrode. The composite dielectric layer is present on the dielectric layer. The composite dielectric layer includes a polymer layer and a plurality of inorganic dielectric particles. The inorganic dielectric particles are distributed within the polymer layer, and a permittivity of the inorganic dielectric particles is greater than a permittivity of the polymer layer. A resistivity of the dielectric layer is greater than a resistivity of the composite dielectric layer.
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公开(公告)号：US10665154B1
公开(公告)日：2020-05-26
申请号：US16299157
申请日：2019-03-12
发明人： Shyh-Feng Chen , Li-Yi Chen
IPC分类号： G09G3/32 , H01L27/32 , H01L27/146
摘要： An alternating self-compensation circuit including a light-emitting device, a first driving circuit, and a second driving circuit is provided. The first driving circuit is configured to function and to drive the light-emitting device during a first time period. The second driving circuit is configured to function and to drive the light-emitting device during a second time period. The first driving circuit and the second driving circuit are electrically and separately connected to one of two ends of the light-emitting device, and the first time period and the second time period are at least partially overlapped in time. The first driving circuit includes a delivery capacitor, a driving transistor, a reset circuit, a compensation circuit, and a data circuit. The second driving circuit also includes a delivery capacitor, a driving transistor, a reset circuit, a compensation circuit, and a data circuit.
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公开(公告)号：US10593582B2
公开(公告)日：2020-03-17
申请号：US15904442
申请日：2018-02-26
发明人： Li-Yi Chen
IPC分类号： H01L21/677 , B81C3/00 , H01L21/67
摘要： A method for transferring a plurality of micro devices e is provided. The method includes picking up the micro devices from a carrier substrate by a transfer head, and iteratively performing a placing process. The placing process includes moving the transfer head to a position, at which an array of the micro devices is positioned over an array of receiving locations of a receiving substrate, and placing said array of the micro devices onto the array of the receiving locations of the receiving substrate.
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公开(公告)号：US10593581B2
公开(公告)日：2020-03-17
申请号：US15904441
申请日：2018-02-26
发明人： Li-Yi Chen
IPC分类号： H01L21/677 , B81C99/00 , H01L21/67
摘要： A transfer head is provided. The transfer head includes a body having a plurality of arrays of grip regions with each of the arrays comprising at least two columns of the grip regions. The grip regions in one of the columns are electrically connected in series. The columns in one of the arrays are controlled by a single voltage source, and the columns in two of the arrays are controlled by two voltage sources respectively.
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公开(公告)号：US10340421B1
公开(公告)日：2019-07-02
申请号：US15925744
申请日：2018-03-19
发明人： Li-Yi Chen
摘要： A light emitting device is provided. The light emitting device includes a first type semiconductor layer, a second type semiconductor layer, an active layer, a plurality of first electrodes, and a second electrode. The first type semiconductor layer includes a plurality of low resistance portions and a high resistance portion. The low resistance portions are isolated from one another by the high resistance portion. The active layer is present between the first type semiconductor layer and the second type semiconductor layer. The active layer includes a first region and at least one second region. A threading dislocation density of the first region is greater than a threading dislocation density of the second region, and a vertical projection of at least one of the low resistance portions on the active layer at least partially overlaps with the second region.
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公开(公告)号：US10297719B2
公开(公告)日：2019-05-21
申请号：US14836976
申请日：2015-08-27
发明人： Li-Yi Chen , Shih-Chyn Lin , Hsin-Wei Lee , Pei-Yu Chang
摘要： A micro-light emitting diode (micro-LED) device includes a receiving substrate and a micro-LED. The micro-LED includes a first type semiconductor layer, a second type semiconductor layer, a current controlling layer, at least one reflective layer, and at least one first electrode. The second type semiconductor layer is joined with the first type semiconductor layer. The current controlling layer is joined with one of the first type semiconductor layer and the second type semiconductor layer, the current controlling layer having at least one opening therein. The reflective layer electrically is coupled with the first type semiconductor layer. The first electrode is disposed on a surface of the reflective layer facing the receiving substrate. The first electrode forms an adhesive bonding system with the receiving substrate.
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公开(公告)号：US10141290B2
公开(公告)日：2018-11-27
申请号：US15456570
申请日：2017-03-12
发明人： Chun-Yi Chang , Li-Yi Chen
摘要： A method for manufacturing a display device is provided. The method includes: forming at least two bottom conductive lines on an array substrate; disposing at least four micro light emitting devices respectively on the bottom conductive lines; forming at least one filling material covering the micro light emitting devices; forming at least four openings in the filling material by photolithography, such that the micro light emitting devices are respectively exposed by the openings; and forming at least two upper conductive lines on the filling material, wherein the upper conductive lines are electrically connected to the micro light emitting devices through the openings, and the upper conductive lines and the bottom conductive lines cross at the micro light emitting devices.
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公开(公告)号：US10102795B2
公开(公告)日：2018-10-16
申请号：US15173729
申请日：2016-06-06
发明人： Chun-Yi Chang , Li-Yi Chen
IPC分类号： G09G3/32 , G09G3/3291
摘要： An operating method of a display device includes providing a first supply voltage to a light emitting diode to make a driving current pass through the light emitting diode. The light emitting diode is electrically connected with an electrically controlled switch, the electrically controlled switch is electrically connected with a control circuit, the control circuit is configured to drive the electrically controlled switch according to a data signal and a scan signal, the first supply voltage is a pulse width modulation voltage, and a duty cycle of the first supply voltage is less than 100%.
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公开(公告)号：US10026757B1
公开(公告)日：2018-07-17
申请号：US15456569
申请日：2017-03-12
发明人： Chun-Yi Chang , Li-Yi Chen
摘要： A display device includes an array substrate, the bottom conductive lines, the micro light emitting devices, the conductive layers, the upper conductive lines, and a filling material. The bottom conductive lines are present on the array substrate. The conductive layers are respectively present between the micro light emitting devices and the bottom conductive lines. The upper conductive lines cross the bottom conductive lines at the micro light emitting devices. Each of the micro light emitting devices is present between at least one of the bottom conductive lines and at least one of the upper conductive lines. The filling material is present on the array substrate and has at least four openings to respectively expose the micro light emitting devices. The upper conductive lines are electrically connected to the micro light emitting devices respectively through the openings.
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