MOBILE DISPLAY DEVICE

A mobile display device includes: a movable base having a first receiving space and a second receiving space and including a back board, a bottom board, on which a plurality of movement casters are mounted, a top board, in which an opening is formed, and two lateral boards, and further including a first movable shielding cover; an elevation device arranged in the second receiving space and including an extendible/contractable rod, and a display device arranged on the extendible/contractable rod; a plurality of electrical power supply devices arranged in the first receiving space and supplying electrical power to the elevation device and the display device. With the electrical power supply devices being arranged in the first receiving space and supplying power to the elevation device and the display device, the display device is allowed to move in the vertical direction through the opening and an effect of arbitrarily placing is achieved.

TECHNICAL FIELD OF THE INVENTION

The present invention relates generally to a display device, and more particularly to a mobile display device.

DESCRIPTION OF THE PRIOR ART

Movable television sets are available in the market, such as Taiwan Utility Model M536310. The Utility Model, as shown inFIG.1thereof, is generally made up of a main body and an elevation mechanism. The main body includes a first receiving portion, a first horizontal rail, a guide channel, and a connecting block. The elevation mechanism is arranged in the first receiving portion, and elevation mechanism includes two vertical rail sets, a movable link assembly, a linear actuator, and a carrier unit. By means of combination of such components, the Utility Model realizes elevation and lowering of a display on the carrier unit.

Although an effect of elevation and lowering of the display, it has to be arranged at a location close to a wall socket, or an extension cord must be used for operation at a location far away from the wall socket. This arrangement makes the extension cord vulnerable to influence of external forces (such as being treaded or run over) to thereby cause the extension cord to break. Further, as the total weight includes the display, the main body, and the elevation mechanism, implementation of moving or transporting is inconvenient.

SUMMARY OF THE INVENTION

In view of the above problems, an objective of the present invention is to provide a mobile display device.

To achieve the above objective, the present invention provides a mobile display device, which comprises:a movable base, the movable base comprising a first receiving space and a second receiving space, the movable base comprising a back board, the movable base comprising a bottom board, the bottom board being provided with a plurality of movement casters, the movable base comprising a top board, the top board being formed with an opening, the movable base comprising two lateral boards, the movable base comprising a first movable shielding cover, the first movable shielding cover being arranged between the two lateral boards and adjacent to the bottom board;an elevation device, the elevation device being arranged in the second receiving space, the elevation device being fixed to the bottom board, the elevation device comprising an extendible/contractable rod, the elevation device being provided with a display device, the display device being arranged on the extendible/contractable rod, the display device being movable vertically by means of the extendible/contractable rod to extend through the opening to an outside of the movable base; anda plurality of electrical power supply devices, the electrical power supply devices being arranged in the first receiving space, the electrical power supply devices supplying electrical power to the elevation device and the display device, wherein due to arrangement of the plurality of electrical power supply device, operation time of the elevation device and the display device are extended.

By arranging the electrical power supply devices in the first receiving space, and the electrical power supply devices supplying electrical power to the elevation device and the display device, the display device is allowed to move in the vertical direction through the opening to achieve an effect of arbitrarily placing the movable base at any random location without being located around an electrical socket, and the bottom board is provided with the plurality of movement casters to achieve an effect of easy mobility.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring toFIGS.1,2, and3, a mobile display device, comprises:a movable base1, wherein the movable base1is formed with a first receiving space16and a second receiving space17, and the movable base1comprises a back board11, and the movable base1comprises a bottom board12, the bottom board12being provided with a plurality of movement casters121, and further, the movable base1comprises a top board13, the top board13being formed with an opening131, and the movable base1comprises two lateral boards14, and further, the movable base1comprises a first movable shielding cover15, the first movable shielding cover15being arranged between the two lateral boards14and adjacent to the bottom board12,wherein the first movable shielding cover15can be a slide door or other openable door arrangements; andan elevation device2, wherein the elevation device2is arranged in the second receiving space17, and the elevation device2is fixed to the bottom board12, and the elevation device2comprises an extendible/contractable rod21, and further, the elevation device2is provided with a display device22, the display device22being arranged on the extendible/contractable rod21, the display device22being movable vertically by means of the extendible/contractable rod21to extend through the opening131to an outside of the movable base1,wherein the opening131is provided with a second movable shielding cover1311, and the second movable shielding cover1311can be a lift cover, so that to extend the display device22through the opening131, the second movable shielding cover1311can be opened to allow the extension of the display device22through the opening131, and to retract the display device22back into the movable base1, the second movable shielding cover1311can be closed in combination therewith, in order to prevent foreign objects from falling into the movable base1and to achieve effects of dust prevention and protection (as shown inFIGS.3and4),wherein the elevation device2is mounted on the back board11so as to more securely fix the elevation device2,wherein the elevation device2may comprise a chain-sprocket mechanism or an electrically driven push rod mechanism or a hydraulically driven push rod or a screw-based push rod, andwherein the display device22comprises a display screen; anda plurality of electrical power supply device3, wherein the electrical power supply devices3are arranged in the first receiving space16, and the electrical power supply devices3are operable to supply electrical power to the elevation device2and the display device22, and to extend operation time of the elevation device2and the display device22,wherein a partition board18is arranged between the first receiving space16and the second receiving space17, andwherein the electrical power supply devices3may comprise an all-solid-state battery, and compared to a known lithium ion battery, the all-solid-state battery can be charged rapidly, has an extended service life, and is durable for low temperature to high temperature, and has a high degree of freedom for shape and a larger capacity and power.

Referring toFIG.5, the movable base1is provided, on an underside thereof, with a stand4, and the stand4may receive more electrical power supply device3to dispose therein. The stand4is provided with movement casters41.

Since the present invention includes a plurality of electrical power supply devices3, the present invention may achieve an effect of being an outdoor mobile advertisement wall without any extension cord to connect with a wall socket, or the present invention can be used in a music concert to serve as a measure for conveying an image of the concert to people sitting at a remote location, and also, the present invention, due to multiple electrical power supply devices3included therein, may serve as a mobile power supply station.

By arranging a plurality of electrical power supply devices3on the bottom board12inside the movable base1, with the electrical power supply device3supplying electrical power to the elevation device2and the display device22, the display device22is allowed to move in the vertical direction to extend through the opening131, thereby achieving an effect of long term operation of the display device22without placing the movable base1around an electrical socket, and can be placed at any location, and by means of the plurality of movement casters121provided on the bottom board12, an effect of easy mobility is achieved.