公开(公告)号：US11169321B2

公开(公告)日：2021-11-09

申请号：US17103747

申请日：2020-11-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shuji Yamashita ,  Hisanori Sasaki ,  Satoru Shibata

IPC: G02F1/1335 ,  F21V8/00

Abstract: A liquid crystal display device includes a liquid crystal panel having a reflection layer on a back surface opposite to a display surface of the liquid crystal panel, a light-guiding plate being closely fixed to the display surface and configured to diffusely reflect light incident and emit the light toward the display surface, a light source holding plate having a light source fixing plate on which a light source is mounted, and a back-side frame that includes a back-side portion disposed in parallel with the back surface of the liquid crystal panel and supported by the light source holding plate. A pair of positioning bent portions that are bent perpendicularly from the back-side portion and support the one end surface are formed on both sides at a lower end edge of the back-side portion along the one end surface.

公开(公告)号：US20240239616A1

公开(公告)日：2024-07-18

申请号：US18621517

申请日：2024-03-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Satoru Shibata ,  Takashi Kitada

IPC: B65G47/91

CPC classification number: B65G47/917

Abstract: A mounting machine includes a head that includes a suction nozzle, the head being configured to suck a component at a distal end portion of the suction nozzle and mount the component on a board, a sensor that includes a light source and a light receiver, the light source being configured to emit a light ray to the distal end portion of the suction nozzle, the light receiver being configured to receive the light ray emitted from the light source, the sensor being configured to output light intensity of the light ray received by the light receiver, and a controller that computes a first differential value by differentiating the light intensity of the light ray output from the sensor, and determines whether or not a suction state of the component sucked to the distal end portion of the suction nozzle is defective based on the computed first differential value.

公开(公告)号：US11022843B2

公开(公告)日：2021-06-01

申请号：US17080214

申请日：2020-10-26

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shuji Yamashita ,  Hisanori Sasaki ,  Satoru Shibata

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/1333

Abstract: A liquid crystal display apparatus includes a quadrangular liquid crystal panel having a reflection layer on a back surface opposite to a display surface, a light guiding plate that diffusely reflects light incident from one end surface of the light guiding plate toward the display surface, a back-side frame disposed in parallel with the liquid crystal panel on a side opposite to the light guiding plate, and a light source holding plate including a light source fixing plate that faces the one end surface and a fixing plate portion fixed to a surface of the back-side frame on a side opposite to the liquid crystal panel. A light source is mounted on the light source fixing plate, and the fixing plate portion is formed so as to be bent perpendicularly to the light source fixing plate.

公开(公告)号：US20240244816A1

公开(公告)日：2024-07-18

申请号：US18621612

申请日：2024-03-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Satoru Shibata ,  Takashi KITADA

IPC: H05K13/08 ,  H05K13/04

CPC classification number: H05K13/0812 ,  H05K13/0409 ,  H05K13/041 ,  H05K13/082

Abstract: A mounting machine includes a rotary head that includes a plurality of suction nozzles disposed circumferentially, the rotary head being configured to suck a component at a distal end portion of a suction nozzle among the plurality of suction nozzles to mount the component on a board, a sensor that includes a light source and a light receiver, the light source being configured to emit a light ray to the distal end portion of the suction nozzle, the light receiver being configured to receive the light ray emitted from the light source, and the sensor being configured to output light intensity of the light ray received by the light receiver, and a controller that determines, based on the light intensity of the light ray output from the sensor, whether or not the suction nozzle is sucking the component when the suction nozzle passes through the light ray.

公开(公告)号：US11067849B2

公开(公告)日：2021-07-20

申请号：US17080053

申请日：2020-10-26

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shuji Yamashita ,  Hisanori Sasaki ,  Satoru Shibata

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/1333

Abstract: A liquid crystal display apparatus includes a quadrangular liquid crystal panel, a light guiding plate formed in a quadrangular shape substantially the same as that of the liquid crystal panel and having a pair of convex portions that protrude outward from a pair of end surfaces, and a frame having a light source holding plate in which a light source is mounted on a light source fixing plate, the light source fixing plate facing the one end surface, the back-side portion being formed in a quadrangular shape substantially the same as that of the liquid crystal panel. Bent side plate portions, which face the pair of end surfaces, are respectively provided on a pair of side portions of the back-side portion. Notches, into which the convex portions are fitted, are provided in the pair of bent side plate portions.