公开(公告)号：US12163602B2

公开(公告)日：2024-12-10

申请号：US17790332

申请日：2021-08-17

Applicant: Beijing BOE Technology Development Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Beiyuan Fan ,  Weifeng Xu ,  Ding Ding

IPC: F16K99/00

Abstract: A control valve structure, a using method thereof, a microfluidic chip, and a nucleic acid extraction device. The control valve structure includes: a cover plate layer, a first channel layer, a first adhesive layer, a second channel layer, at least one valve core, and at least one elastic film. When the valve core is embedded in the first limiting hole, the elastic film seals the first limiting hole, and the second limiting hole, the first through hole and the liquid outlet channel form a sample liquid flow channel; and when the valve core is embedded in the second limiting hole, the elastic film seals the second limiting hole so as to block the sample liquid flow channel.

公开(公告)号：US20240278230A1

公开(公告)日：2024-08-22

申请号：US18044296

申请日：2022-05-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yunqing Mu ,  Ding Ding

IPC: B01L3/02

CPC classification number: B01L3/0265 ,  B01L2200/027 ,  B01L2400/02 ,  B01L2400/0677

Abstract: The disclosure provides a microfluidic chip, a droplet generation device and a method for controlling a droplet generation size. The microfluidic chip includes a substrate and a first flow channel, a second flow channel and a third flow channel distributed on the substrate, the first flow channel, the second flow channel and the third flow channel intersecting to form a confluence area, the first flow channel being configured for a flow of a dispersed phase fluid from it, the second flow channel being configured for a flow of a continuous phase fluid from it, the dispersed phase fluid and the continuous phase fluid forming droplets in the third flow channel. The dispersed phase fluid flows in the first flow channel along a first direction, an orthographic projection of the first flow channel on the substrate has a first width which is constant in a second direction.

公开(公告)号：US11933924B2

公开(公告)日：2024-03-19

申请号：US17488259

申请日：2021-09-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jiangbo Chen ,  Fanli Meng ,  Zeyuan Li ,  Yao Lu ,  Tuo Sun ,  Yanzhao Li ,  Ding Ding

IPC: G01T1/20 ,  H01L27/146 ,  H04N5/32 ,  H04N25/75

CPC classification number: G01T1/20184 ,  H01L27/14676 ,  H04N5/32 ,  H04N25/75

Abstract: The present disclosure provides an active pixel sensor and a flat panel detector. The active pixel sensor includes: a light sensing device configured to convert light sensed by the light sensing device into charges and supply the charges to a floating diffusion node; an amplification sub-circuit configured to amplify a signal according to a potential at the floating diffusion node and output the amplified signal through the output terminal; an adjustment sub-circuit configured to adjust, in response to a first control signal, a conversion gain from an amount of the light sensed by the light sensing device to the potential at the floating diffusion node; and a read sub-circuit configured to transmit a voltage of the input terminal of the read sub-circuit to the output terminal of the read sub-circuit according to a scan signal provided by the scan line.