Abstract:
The light sourcing module of a backlit LCD display apparatus includes a light sources and power sources supporting substrate. The supporting substrate supports plural light sources on a top major surface thereof and at least one heat generating and power supplying circuit element that protrudes from a bottom major surface of the supporting substrate. The supporting substrate integrally includes wiring that couples driving power output by power supplying circuit element to the plural light sources. A rear receiving frame includes an integral heat-sinking and dissipating recess or groove that is positioned and dimensioned to receive the power supplying circuit element when the supporting substrate is received by the rear receiving frame. The integral heat-sinking and dissipating recess or groove removes heat from the heat generating and power supplying circuit element so that such heat does not adversely affect performance of the light sources.
Abstract:
The present invention provides a backlight module having heat-dissipating device, and a liquid crystal display module incorporated with such a backlight module. The backlight module includes including a backboard, a membrane, and an aluminum extrusion, the backboard defined with recess with the membrane covered thereon, and the aluminum extrusion is arranged on side of the backboard. The present invention provides a backlight module with a heat dissipating device and a liquid crystal display module incorporated with such a backlight module. The heat-dissipating device includes a recess in which hot airflow can be readily directed upward and distributed to the whole backboard, and eventually dissipated into the ambient air. Accordingly, the heat dissipating capacity of the backlight module is increased, and the service life and performance of the LED is therefore prolonged and increased.
Abstract:
A display apparatus includes a driving circuit portion driving a display panel portion, in which the driving circuit portion and a power unit which supplies electric power to the driving circuit portion are arranged on the back surface side, a case housing both the driving circuit portion and the power unit with the display panel portion, a partitioning wall portion which divides a housing space of the case, a gap which is formed between the display panel portion and the partitioning wall portion, and a cooling fan which leads outside air into the gap and which is arranged on the partitioning wall portion. The driving circuit portion and the power unit are arranged on an opposite side of the partitioning wall portion against the gap. The gap is shrunk along a direction from downside to upside of the display panel portion.
Abstract:
A liquid crystal display device includes a liquid crystal panel, a protection panel arranged a predetermined distant from the liquid crystal panel, and a flow control device to impart turbulence to an air flow in a channel, which is defined between the liquid crystal panel and the protection panel.
Abstract:
A system and method for cooling an electronic image assembly having a plurality of cooling gas pathways place behind the electronic image assembly. A first fan may be used to force cooling gas through a first grouping of cooling gas pathways while a second fan may be used to force cooling gas through a second grouping of cooling gas pathways. Temperature sensing devices may be positioned so as to measure the temperature of the first and second groupings of cooling gas pathways. The speeds of the first and second fans may be adjusted based on the temperature measurements of the cooling gas pathway groupings. Additional fans with additional temperature sensing devices may be used for further accuracy and control over the temperature gradients of the electronic image assembly. Manifolds may be used to distribute/collect cooling gas to/from the cooling gas pathways.
Abstract:
A liquid crystal display device includes a liquid crystal panel, a protection panel arranged a predetermined distant from the liquid crystal panel, and a flow control device to impart turbulence to an air flow in a channel, which is defined between the liquid crystal panel and the protection panel.
Abstract:
A liquid crystal display device is provided, capable of minimizing deterioration in display quality of a liquid crystal panel due to external force generated by connection with an external chassis such as a customer's chassis. The liquid crystal display device has, at least, a front frame, a liquid crystal panel, and a backlight unit having at least a rear frame, arranged in this order. A back fixing frame to be fixed to the front frame is provided on the back face of the liquid crystal display device, and attachment portions to be attached to an external chassis are provided in the back fixing frame. This makes it difficult for external force generated by connection with the external chassis to be transmitted to the liquid crystal panel or the backlight unit, suppresses deformation of the liquid crystal panel or reflection sheet and prevents deterioration in display quality.
Abstract:
A cooling system for an electronic display. Transparent cooling chambers are used to extract heat from the front display surface of an electronic display. A refrigerated air source is in gaseous communication with the cooling chamber. Additional fans may be used to cool other components of the electronic display. Multiple displays may be used where each display and the refrigerated air source is housed within the housing. The housing contains air inlet and air exhaust ports. An air curtain device may be used with some embodiments. An open-loop, closed-loop, or both types of designs may be used with the cooling chambers. Temperature sensors may allow the refrigerated air source(s) to be selectively engaged depending on the temperature of the air within the cooling chamber or the temperature of the front display surface. Ambient temperature sensors may also direct the switch between open and closed loops.
Abstract:
A system for cooling an electronic display where an isolating structure may be used to allow ambient air to cool power modules. The isolating structure substantially prohibits containments which may be present within the ambient air from contacting sensitive electrical components on the power modules or otherwise. A gasket may be used to seal the interface between the power modules and the isolating structure. Heat sinks may be placed in thermal communication with the power supplies and fans may draw air through a narrow channel in which the heat sinks are located. In some embodiments the narrow channel may have the opposing surface of the channel defined by the rear portion of an LED assembly. Exemplary embodiments may use the ambient air to cool both the power modules and a closed loop of isolated gas within the electronic display.
Abstract:
Provided is a liquid crystal display device and a backlight unit that are of high quality and have a simple configuration that a mechanism cooling a cooling medium is not included. Included are a liquid crystal display panel and an LED backlight unit including an LED light source emitting light toward the panel, and a chassis plate on which the light source is disposed, the plate including a through flow path for cooling air dissipating heat from the light source, wherein the path includes a main duct introducing the cooling air and disposed along one side of the panel, and a branch duct branching off from the main duct, aligned along a disposed direction of the light source, and including an exhaust port disposed at an end of the branch duct and discharging the cooling air to outside of the device.