公开(公告)号：US20210366394A1

公开(公告)日：2021-11-25

申请号：US16342725

申请日：2018-11-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili GAI ,  Yicheng LIN

IPC: G09G3/3258 ,  G09G3/3291 ,  G09G3/3266

Abstract: The preset disclosure relates to a pixel driving circuit, a pixel driving method, an array substrate and a display device. The pixel driving circuit includes a pixel driving unit and an optical detection unit. The pixel driving unit is configured to drive a light-emitting element included in a pixel unit to emit light. The optical detection unit includes a photoelectric conversion sub-circuit and a switch control sub-circuit. The photoelectric conversion sub-circuit is configured to receive light emitted from the light-emitting element, and convert the light into an electrical signal. The switch control sub-circuit is configured to output the electrical signal under control of a first scanning signal. The pixel driving unit is configured to adjust brightness of the light emitted from the light-emitting element according to the electrical signal.

公开(公告)号：US20210166623A1

公开(公告)日：2021-06-03

申请号：US16331673

申请日：2018-08-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili GAI ,  Yicheng LIN ,  Baoxia ZHANG ,  Ling WANG ,  Quanhu LI ,  Pan XU

IPC: G09G3/3233

Abstract: A pixel circuit includes a data writing sub-circuit inputs a signal input via a second signal terminal to a compensating sub-circuit and a driving sub-circuit under control of a signal from a first signal terminal, the compensating sub-circuit compensates a threshold voltage of the driving sub-circuit according to a signal output from the data writing sub-circuit under control of a signal from a third signal terminal, a light-emitting control sub-circuit inputs a signal from a first voltage terminal to the driving sub-circuit and the compensating sub-circuit under control of a signal from a fourth signal terminal, the driving sub-circuit configured to generate and input a driving current to a light-emitting sub-circuit according to a signal output from the light-emitting control sub-circuit and a signal output from the data writing sub-circuit, and the light-emitting sub-circuit configured to emit light according to the driving current under control of a second voltage terminal.

公开(公告)号：US20200273933A1

公开(公告)日：2020-08-27

申请号：US16499809

申请日：2019-04-01

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Pan XU ,  Yicheng LIN ,  Cuili GAI ,  Ling WANG ,  Yongqian LI

IPC: H01L27/32 ,  H01L51/56

Abstract: An OLED display substrate, a manufacturing method thereof, and a display device are provided. The manufacturing method includes forming a PIN photodiode on a base substrate, forming an insulative protection layer covering the PIN photodiode, and forming an oxide TFT. The PIN photodiode is formed prior to the formation of an active layer of the oxide TFT, and the insulative protection layer covering the PIN photodiode is formed prior to the formation of a source electrode and a drain electrode of the oxide TFT.

公开(公告)号：US20190103422A1

公开(公告)日：2019-04-04

申请号：US16146155

申请日：2018-09-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Baoxia ZHANG ,  Cuili GAI ,  Ling WANG

IPC: H01L27/12 ,  H01L49/02

Abstract: An array substrate is provided. The array substrate includes a capacitor, which includes a plurality of metal electrodes arranged opposite to each other. The plurality of metal electrodes are spaced apart from each other in a horizontal direction parallel to a plane in which the array substrate is located, and an orthogonal projection of each of at least two of the plurality of metal electrodes of the capacitor on the plane in which the array substrate is located includes a curved portion.

公开(公告)号：US20170206838A1

公开(公告)日：2017-07-20

申请号：US15321543

申请日：2016-03-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili GAI ,  Liye DUAN ,  Xiaodi LIU

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G3/3225 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2320/045

Abstract: Embodiments of the present disclosure provide a pixel driving circuit and a pixel driving method. The pixel driving circuit comprises a driving transistor, a storage capacitor, a light-emitting device, a first switch transistor, a second switch transistor, a third switch transistor, a fourth switch transistor and a fifth switch transistor. The pixel driving circuit and the pixel driving method are implemented such that a driving current generated by the driving transistor is relevant to a working voltage provided by a first power supply terminal, an activation voltage of the light-emitting device, a working voltage of the light-emitting device upon emitting light and a data voltage, yet irrelevant to a threshold voltage of the driving transistor, thereby refraining the driving current flowing through the light-emitting device from influence exerted by the non-uniformity and drifting of the threshold voltage of the driving transistor, and in turn effectively improving the uniformity of the driving current flowing through the light-emitting device. When the activation voltage of the light-emitting device increases with the aging of the light-emitting device, the pixel driving circuit and the pixel driving method enable the driving current flowing through the light-emitting device to increase, thereby compensating for attenuation of the display luminance caused by the aging of the light-emitting device.

公开(公告)号：US20170033192A1

公开(公告)日：2017-02-02

申请号：US14913581

申请日：2015-07-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Longyan WANG ,  Yongqian LI ,  Kun CAO ,  Quanhu LI ,  Jingwen YIN ,  Baoxia ZHANG ,  Cuili GAI ,  Zhongyuan WU ,  Gang WANG

IPC: H01L29/45 ,  H01L29/22 ,  H01L29/20 ,  H01L29/786 ,  H01L21/4763 ,  H01L29/423 ,  H01L21/285 ,  H01L21/443 ,  H01L21/3213 ,  H01L29/24 ,  H01L29/66

CPC classification number: H01L29/45 ,  H01L21/28575 ,  H01L21/32134 ,  H01L21/443 ,  H01L21/47635 ,  H01L29/20 ,  H01L29/2003 ,  H01L29/22 ,  H01L29/24 ,  H01L29/42356 ,  H01L29/66522 ,  H01L29/66742 ,  H01L29/66969 ,  H01L29/786 ,  H01L29/78681 ,  H01L29/7869

Abstract: A thin film transistor, a manufacturing method thereof, and a display device are provided. The thin film transistor includes a gate electrode (21), an active layer (23), a source electrode (241) and a drain electrode (242). The source electrode (241) and the drain electrode (242) are formed of at least two materials, the forming materials of the source electrode (241) and the drain electrode (242) can create a cell reaction in a corresponding etching solution so as to be etched, and material of the active layer (23) is not corroded by the etching solution. With the thin film transistor and manufacturing method thereof according to embodiments of the invention, a problem that an active layer is liable to be corroded in an etching procedure of a source electrode and a drain electrode can be solved, and thus the thin film transistor device can be manufactured by using a back channel etch process. Consequently, the process number for manufacture of the thin film transistor is decreased, and the manufacturing cost is saved.

Abstract translation: 提供薄膜晶体管，其制造方法和显示装置。 薄膜晶体管包括栅电极（21），有源层（23），源电极（241）和漏电极（242）。 源极（241）和漏电极（242）由至少两种材料形成，源电极（241）和漏电极（242）的形成材料可以在相应的蚀刻溶液中产生电池反应，从而 被蚀刻，并且有源层（23）的材料不被蚀刻溶液腐蚀。 利用根据本发明的实施例的薄膜晶体管及其制造方法，可以解决在源电极和漏电极的蚀刻过程中有源层易于腐蚀的问题，因此薄膜晶体管器件 可以通过使用背沟道蚀刻工艺来制造。 因此，薄膜晶体管的制造工序减少，节省了制造成本。

公开(公告)号：US20170031193A1

公开(公告)日：2017-02-02

申请号：US15290492

申请日：2016-10-11

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shi SHU ,  Guanbao HUI ,  Teng YE ,  Chunsheng JIANG ,  Cuili GAI

IPC: G02F1/1368 ,  H01L29/786 ,  H01L27/12 ,  G02F1/1362

CPC classification number: H01L27/1262 ,  G02F1/136209 ,  G02F1/136227 ,  G02F2001/136231 ,  H01L27/1248 ,  H01L29/41733 ,  H01L29/78633

Abstract: Embodiments of the disclosure provide a manufacturing method of a TFT array substrate, a TFT array substrate and a display device. The TFT array substrate comprises a thin film transistor and a pixel electrode formed on a base substrate, the pixel electrode is electrically connected with a drain electrode of the thin film transistor. The array substrate further comprises an light-shielding pattern provided above the thin film transistor.

Abstract translation: 本发明的实施例提供了TFT阵列基板，TFT阵列基板和显示装置的制造方法。 TFT阵列基板包括薄膜晶体管和形成在基底基板上的像素电极，像素电极与薄膜晶体管的漏极电连接。 阵列基板还包括设置在薄膜晶体管上方的遮光图案。

公开(公告)号：US20160307986A1

公开(公告)日：2016-10-20

申请号：US14787396

申请日：2015-03-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Cuili GAI ,  Danna SONG ,  Baoxia ZHANG

IPC: H01L27/32 ,  H01L29/786 ,  H01L27/12

CPC classification number: H01L27/3272 ,  H01L21/77 ,  H01L27/12 ,  H01L27/1214 ,  H01L27/124 ,  H01L27/1248 ,  H01L27/1251 ,  H01L27/1255 ,  H01L27/127 ,  H01L27/3248 ,  H01L27/3258 ,  H01L27/3262 ,  H01L29/4908 ,  H01L29/78633 ,  H01L29/78645 ,  H01L29/78648 ,  H01L29/78678 ,  H01L29/7869 ,  H01L2227/323

Abstract: An array substrate, a method for fabricating the array substrate and a display device are described. The array substrate includes: a first gate electrode metal layer; a first gate insulation layer; an active layer on the first gate insulation layer; an etching barrier layer on the active layer; a source-drain metal layer including a source electrode and a drain electrode that contact with two sides of the active layer respectively; a second gate insulation layer on the source-drain metal layer; and a second gate electrode metal layer on the second gate insulation layer. The array substrate has an optimized TFT performance and a reduced gate line resistance, and light may be blocked from irradiating on the active layer, which is beneficial to restrain IR Drop, drifting of TFT threshold voltages or generation of a light-incurred leakage current on the active layer. Performance of the display device is improved.

Abstract translation: 对阵列基板，阵列基板的制造方法以及显示装置进行说明。 阵列基板包括：第一栅电极金属层; 第一栅绝缘层; 第一栅极绝缘层上的有源层; 有源层上的蚀刻阻挡层; 源极 - 漏极金属层，包括分别与有源层的两侧接触的源电极和漏电极; 源极 - 漏极金属层上的第二栅极绝缘层; 以及在所述第二栅极绝缘层上的第二栅电极金属层。 阵列基板具有优化的TFT性能和降低的栅极线电阻，并且可以阻挡光在有源层上的照射，这有利于抑制IR掉落，TFT阈值电压漂移或产生漏光电流 活动层。 提高显示装置的性能。

公开(公告)号：US20170110055A1

公开(公告)日：2017-04-20

申请号：US15122390

申请日：2015-07-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yongqian LI ,  Longyan WANG ,  Quanhu LI ,  Jingwen YIN ,  Baoxia ZHANG ,  Cuili GAI ,  Kun CAO ,  Zhongyuan WU

IPC: G09G3/3258 ,  H01L51/50 ,  G09G3/325 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3258 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/043 ,  G09G2300/0809 ,  G09G2300/0819 ,  G09G2310/0216 ,  G09G2320/0204 ,  G09G2320/045 ,  H01L27/3265 ,  H01L27/3276 ,  H01L51/5012

Abstract: The present disclosure relates to a pixel circuit, a driving method thereof and related devices. The pixel circuit comprises: a reset compensation module, a data writing module, a storage module and a driving transistor. With the cooperation of each module, the pixel circuit can compensate shift of a threshold voltage for a driving transistor by storing the threshold voltage for the driving transistor in the storage module. Therefore, when the source of the driving transistor in the pixel circuit is connected with a light emitting device for driving it to emit light for display, the driving current of the driving transistor for driving the light emitting device to emit light will be only associated with the voltage of the data signal, but not the threshold voltage for the driving transistor. In this way, influence of the threshold voltage of the driving transistor on the light emitting device will be avoided.

公开(公告)号：US20170040405A1

公开(公告)日：2017-02-09

申请号：US14912907

申请日：2015-07-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Baoxia ZHANG ,  Cuili GAI

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/52

CPC classification number: H01L27/3276 ,  H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5225 ,  H01L51/5228 ,  H01L51/5234 ,  H01L51/56 ,  H01L2251/5323

Abstract: The embodiments of the present invention provide an OLED substrate, a manufacturing method thereof, an OLED display panel and an electronic equipment. The OLED substrate and the manufacturing method thereof provided by the embodiments of the present invention apply a transparent first cathode and a reflective second cathode, realizing top emitting and bottom emitting in a first region covered by electronic elements and a second region other than the first region respectively, increasing the light emitting area and the aperture ratio of pixels, thereby realizing double-sided display of OLED display device.

Abstract translation: 本发明的实施例提供一种OLED基板，其制造方法，OLED显示面板和电子设备。 由本发明实施例提供的OLED基板及其制造方法应用透明第一阴极和反射第二阴极，实现在电子元件覆盖的第一区域中的顶部发射和底部发射，以及除了第一区域之外的第二区域 分别增加了发光面积和像素的开口率，从而实现了OLED显示装置的双面显示。