BACKGROUND
1. Technical Field
The disclosure generally relates to display assemblies, especially to a display assembly with an adjustable stand.
2. Description of Related Art
With increases in both the number of people using video display terminals and the amount of time that an individual user spends in front of the terminal, it has become evident that the occurrence of headaches, user fatigue, and eye, neck and back strain has increased. The ergonomics associated with video displays has become a major consideration in display design. A conventional flat display terminal can be manually adjusted through rotating a display screen relative to a stand. However, manual positioning the flat display terminal may require many adjustments, which is inconvenient.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 and FIG. 2 are isometric views of a display assembly.
FIG. 3 is a block view of a display.
FIG. 4 is a side view of a display and a transmission unit of the display of a first embodiment, and an enlarged view of a cross-section portion of the display is shown.
FIG. 5 is a back schematic view of the display of FIG. 4.
FIG. 6 is a partial schematic view of a transmission unit of a second embodiment.
FIG. 7 is a back schematic view of the display of the second embodiment.
FIG. 8 is a partial schematic view of a transmission unit of a third embodiment.
FIG. 9 is a back schematic view of the display of the third embodiment.
FIG. 10 is a side view of three selectable supporting portions of a stand.
FIG. 11 is a back view of the supporting potions of FIG. 10.
FIG. 12 is a back view of the display assembly.
FIG. 13 and FIG. 14 are side views of the display assembly in different angular states.
DETAILED DESCRIPTION
Referring to FIG. 1 and FIG. 2, a display assembly includes a display 10 and a stand 30. The display 10 is a flat panel display 10. The display 10 includes a display screen 11, a housing and an angular adjusting mechanism (as shown in FIG. 4). A tilt angle of display 10 can be adjusted by an infra-red (IR) remote control 80.
Referring to FIG. 3 and FIG. 4, the angular adjusting mechanism includes a rotation motor 40, a motor control module being operable for controlling the rotation motor 40, and a transmission unit coupled to the rotation motor 40. The motor control module includes a rotation control sub-module, a central processing unit (CPU) or a microcontroller (MCU), and a motor driver integrated circuit (IC). An IR receiver may be provided to couple to the IR remote control 80. The IR receiver is capable of receiving an adjusting control signal from the remote control 80 and outputting the adjusting control signal to the CPU/MCU. The CPU/MCU is capable of transforming the adjusting control signal into a control command and sending it to the motor driver IC. The rotation control sub-module is capable of acquiring a working state of the rotation motor 40 and sending it to CPU/MCU. The motor driver IC is capable of receiving a control command and controlling the rotation motor 40 to work. The rotation motor 40 can be a reverse rotation motor.
Referring to FIG. 4 and FIG. 5, the display 10, supported by the stand 30 in an upright position, is placed on a supporting surface. The stand 30 is also placed on the supporting surface. The stand 30 supports a backside of the display 10. A bottom portion of the display 10 has an anti-skid portion 15. The stand 30 includes a supporting portion 32 and an engaging portion 34 attached to the display 10. The engaging portion 34 is pivotable about a first pivot axis 31. The first pivot axis 31 is parallel to the display screen 11. The engaging portion 34 includes a gear rim 33. The gear rim 33 has a circular-arcuate configuration. The first pivot axis 31 extends through a central of the gear rim 33.
In a first embodiment, the transmission unit includes a first drive gear 53. The first drive gear 53 is directly actuated by the rotation motor 40 and meshes with the gear rim 33. When the rotation motor 40 receives the control command from the motor driver IC, the rotation motor 40 rotates with the first drive gear 53 and the gear rim 33, thereby the first drive gear 53 drives the stand 30 to rotate. The stand 30 is angled relative to the display 10. A viewing angle of the display screen 11 is adjusted.
Referring to FIG. 6 and FIG. 7, in a second embodiment, the transmission unit includes a first drive gear 63 and a speed gear set 65. The first drive gear 63 is directly actuated by the rotation motor 40. The speed gear set 65 includes at least two speed gears. The speed gear set 65 includes a first speed gear 652 and a second speed gear 654 with smaller diameter relative to the first speed gear 652. The first speed gear 652 and the second speed gear 654 are pivotable about a second pivot axis 653. The second speed gear 654 meshes with the gear rim 33 of the stand 30. The first speed gear 652 meshes with the first drive gear 63. The speed gear set 65 may change a rotation speed transmitted from the first drive gear 63 to the gear rim 33, so that tilt angle of the stand 30 can be finely adjusted.
Referring to FIG. 8 and FIG. 9, in a third embodiment, the transmission unit includes a first drive wheel 40, a second drive wheel 77, and a second drive gear 79. The second drive wheel 77 has a larger diameter than the first drive wheel 73. The second drive gear 79 has a smaller diameter than the second drive wheel 77. The second drive wheel 77 is capable of being driven by the first drive wheel 73 by a transmission belt 75. The second drive wheel 77 and the second drive gear 79 can be rotated about a third pivot axis 793. The first drive wheel 73 is directly actuated by the rotation motor 40. The second drive gear 79 meshes with the gear rim 33 of the stand 30.
Referring to FIG. 10 through FIG. 12, in above embodiments, the supporting portion 32 may have an arcuate distal end 322 to be supported by the supporting surface. Alternatively, the supporting portion 32 may have a sliding wheel 325 rotatably attached to a distal end 324 or have a ball 329 rotatably inserted into a distal end 328. The stand 30 may be assembled on a left side, a middle side or a right side of the display 10.
Referring to FIG. 13 and FIG. 14, when adjusting the display assembly, the stand 30 is rotated relative to the display 10 through the angular adjusting mechanism in above embodiments. The supporting portion 32 may move away relative to the display 10 or move towards the display 10, thereby adjusting a tilt angle of the display screen 11. Therefore, a viewer may adjust a viewing angle of the display along a vertical direction precisely and conveniently.
It is to be understood, however, that even though numerous characteristics and advantages have been set forth in the foregoing description of preferred embodiments, together with details of the structures and functions of the preferred embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Patent Application
20100290176
