Abstract: The present invention provides a rear-door heat dissipation system with a horizontally arranged and series-connected design comprising a heat dissipation cabinet, at least one condenser unit, and a heat dissipation device. The heat dissipation cabinet is provided therein with an active heat source device and a cabinet back door on one side of the heat dissipation cabinet, wherein the cabinet back door is provided with an air circulation unit. The condenser unit is provided on the cabinet back door, comprising a plurality of condensers. Wherein the circulation tube system of each of the condensers comprises a first and second main-channel aluminum tube, and aluminum flat tubes. Each aluminum flat tube has two ends respectively connecting to the first and second main-channel aluminum tube. An airflow channel is formed between each two adjacent aluminum flat tubes to enable air circulation, and each airflow channel is provided with an aluminum fin.

Abstract: The invention provides a backlight control method for a display system. The display system has a backlight module, and a light-emitting surface of the backlight module is divided into a plurality of light-emitting areas, and each light-emitting area corresponds to at least one light-emitting unit. The backlight control method includes the following steps: receiving an input image data from the display module of the display system; performing a local dimming procedure on the backlight module according to the input image data, wherein the light-emitting unit corresponding to each light-emitting area has a local dimming value; obtaining area peak luminance of each light-emitting area; determining a compensation area peak luminance of each light-emitting area according to a brightness enhancement comparison table and the peak brightness values of the light-emitting areas; and applying each compensation area peak luminance to each corresponding light-emitting area of backlight module.

Abstract: A heat exchanger module for immersion cooling system includes cooling equipment and heat exchange equipment connected to the cooling equipment. The cooling equipment includes a primary container and at least one cooling tank provided in the primary container. The cooling tank holds a cooling liquid for an active heat source device to be immersed in the cooling liquid. The heat exchange equipment includes a secondary container and at least one heat exchange tank provided in the secondary container. The heat exchange tank is provided therein with at least one condenser. The condenser divides the heat exchange tank into an input portion and an output portion. There is at least one circulation device corresponding to and working with the input portion and/or the output portion of the heat exchange tank to make the cooling liquid exchanged and circulated between the cooling tank and the heat exchange tank.

Abstract: The present invention provides an immersion heat exchange system comprising cooling equipment and heat exchange equipment connected to the cooling equipment. The cooling equipment comprises a primary container and at least one cooling tank provided in the primary container. The cooling tank holds a cooling liquid for an active heat source device to be immersed in the cooling liquid. The heat exchange equipment comprises a secondary container and at least one heat exchange tank provided in the secondary container. The heat exchange tank provided therein with at least one condenser. The condenser divides the heat exchange tank into an input portion and an output portion. There is at least one circulation device corresponding to and working with the input portion and/or the output portion of the heat exchange tank to make the cooling liquid exchanged and circulated between the cooling tank and the heat exchange tank.

Abstract: A heat dissipation device for a multipoint heat source includes an evaporator unit and a condenser unit. The evaporator unit includes a multi-channel duct. At least one narrow side of the multi-channel duct has a communication opening in communication with the bottom side of at least one tube of the condenser unit, and a wide side of the multi-channel duct is attached to the multipoint heat source so that a heat conduction medium can be circulated through the evaporator unit and the condenser unit while alternating between a liquid phase and a gaseous phase.

Abstract: A two-size socket tool is provided, wherein the two-size socket tool includes: an outer sleeve including a socket hole, a receiving hole in communication with the socket hole, and a radial protrusion radially protruding between the socket hole and the receiving hole; an inner sleeve non-rotatably inserted in the outer sleeve and including an inner sleeving portion and a connection section connected to each other by insertion, the inner sleeving portion being received in the socket hole and blockable by the radial protrusion, the connection section extending from the inner sleeving portion toward the receiving hole; and a first elastic member received in the receiving hole and between the radial protrusion and the inner sleeve.

Abstract: A display device includes a pixel circuit and a stage of a scan driver. The stage of the scan driver is electrically coupled to the pixel circuit. The stage of the scan driver is configured to output a first scan signal and a second scan signal to the pixel circuit. A first enable voltage of the first scan signal is at a first logic level, and a first disable voltage of the first scan signal is at a second logic level. A second enable voltage of the second scan signal is at the second logic level.

Abstract: A driving head-changeable tool is provided, including: a main body, including a chamber and an assembling end, the chamber including concave portions and convex portions alternatively arranged circumferentially, the chamber further including at least one receiving hole each receiving a blocking member; an outer sleeve, disposed around the main body, including a recess and a projection protrusive, the outer sleeve being slidable relative to the main body; wherein when the outer sleeve is located in a first position, the projection urges the blocking member to project within the chamber to retain the polygonal ball joint in the chamber; when the outer sleeve is located in a second position, the blocking member is retractable in the recess to be not protrusive within the chamber so that the polygonal ball joint is disengageable from the chamber.

Abstract: A tool joint is provided, including a main body, a swingable member and a locking structure. The main body has a connecting channel. The swingable member is disposed on the main body. A driving rod is disposed through the swingable member and movable between a first position and a second position. When the driving rod is in the first position, the driving rod is out of the connecting channel, the swingable member is swingable relative to the main body. When the driving rod is in the second position, the driving rod projects within the connecting channel and the swingable member is non-swingable relative to the main body.

Abstract: A multi-section universal tool includes an assembling member, a connecting member, a working member and two elastic members. The assembling member has an assembling portion and a first receiving room. The connecting member includes a connecting ball joint and a second receiving room. The connecting ball joint includes a connecting elastic abutting member which has a tendency to radially move outwardly. The connecting ball joint is inserted into the first receiving room and movable relative to the first receiving room to be in a first connecting position or a second connecting position. The working member includes a working ball joint including a working elastic abutting member which has a tendency to radially move outwardly. The working ball joint is inserted into the second receiving room and movable relative to the second receiving room to be in a first working position or a second working position.

Abstract: A tool joint is provided, including a main body, a swingable member and a locking structure. The main body has a connecting channel. The swingable member is disposed on the main body. A driving rod is disposed through the swingable member and movable between a first position and a second position. When the driving rod is in the first position, the driving rod is out of the connecting channel, the swingable member is swingable relative to the main body. When the driving rod is in the second position, the driving rod projects within the connecting channel and the swingable member is non-swingable relative to the main body.

Abstract: A two-stage universal joint includes a sleeve, a driving member and a restricting member. The sleeve defines an axial direction and includes a receiving groove and an assembling portion. The driving member includes a polygonal ball head. The polygonal ball head has a plurality of arcuate portions. The polygonal ball head is inserted into the receiving groove. The driving member is slidable between a first position and a second position relative to the sleeve.

Abstract: A two-stage universal joint includes a sleeve member, a driving member, and an elastic member. The sleeve member defines an axial direction and has a sleeve portion and a connection portion. The sleeve portion has a receiving groove having plural positioning protrusions extending axially on an inner wall thereof. One of the positioning protrusions has a recessed portion. The driving portion has a polygonal ball-joint having plural arc-face sections. The polygonal ball-joint is inserted into the receiving groove. The driving member is slidable with respect to the sleeve member between a first position and a second position. The polygonal ball-joint has a biasing member tending to move outward.

Abstract: A multi-section universal tool includes an assembling member, a connecting member, a working member and two elastic members. The assembling member has an assembling portion and a first receiving room. The connecting member includes a connecting ball joint and a second receiving room. The connecting ball joint includes a connecting elastic abutting member which has a tendency to radially move outwardly. The connecting ball joint is inserted into the first receiving room and movable relative to the first receiving room to be in a first connecting position or a second connecting position. The working member includes a working ball joint including a working elastic abutting member which has a tendency to radially move outwardly. The working ball joint is inserted into the second receiving room and movable relative to the second receiving room to be in a first working position or a second working position.

Abstract: A two-stage universal joint includes a sleeve member, a driving member, and an elastic member. The sleeve member defines an axial direction and has a sleeve portion and a connection portion. The sleeve portion has a receiving groove having plural positioning protrusions extending axially on an inner wall thereof. One of the positioning protrusions has a recessed portion. The driving portion has a polygonal ball-joint having plural arc-face sections. The polygonal ball-joint is inserted into the receiving groove. The driving member is slidable with respect to the sleeve member between a first position and a second position. The polygonal ball-joint has a biasing member tending to move outward.

Abstract: A two-stage universal joint includes a sleeve, a driving member and a restricting member. The sleeve defines an axial direction and includes a receiving groove and an assembling portion. The driving member includes a polygonal ball head. The polygonal ball head has a plurality of arcuate portions. The polygonal ball head is inserted into the receiving groove. The driving member is slidable between a first position and a second position relative to the sleeve.

Abstract: A multi-section universal tool includes an assembling member, a connecting member, a working member and two elastic members. The assembling member has an assembling portion and a first receiving room. The connecting member includes a connecting ball-joint and a second receiving room. The connecting ball-joint includes a connecting elastic abutting member which has a tendency to radially move outwardly. The connecting ball-joint is inserted into the first receiving room and movable relative to the first receiving room to be in a first connecting position or a second connecting position. The working member includes a working ball joint including a working elastic abutting member which has a tendency to radially move outwardly. The working ball-joint is inserted into the second receiving room and movable relative to the second receiving room to be in a first working position or a second working position.

Abstract: A two-stage universal joint includes a sleeve, a driving member and an elastic member. The sleeve defines an axial direction, including a receiving room and an assembling portion. An inner wall of the receiving room has a recessed portion. The driving member includes a polygonal ball head. The polygonal ball head has a plurality of arc parts. The driving member is slidable between a first position and a second position relative to the sleeve. The polygonal ball head includes a resilient mechanism. The resilient mechanism has a tendency to normally spring radially outward.