TWI418215B - Display apparatus - Google Patents

Description

Display device

The present invention relates to a display device.

With the development of network technology and the advancement of society, computers have gradually penetrated into various fields such as daily work, life and study. People use computers to edit texts, buy and sell stocks, and access various information online. The computer usually includes a monitor, a host, and a keyboard. The monitor is used to provide a display interface for the user to display text and images. The host computer is a central processing device for receiving a keyboard input message and transmitting the message to the monitor after processing the input message, and displaying the message to the user through the monitor.

Conventional monitors include a cathode ray tube monitor (CRT), a liquid crystal display (LCD), a plasma display panel (PDP), and the like. However, when the above monitor is not in use, its display screen is exposed, and it is easily scratched by the external hard object, thereby causing a certain degree of damage to the display screen and reducing the display effect.

In view of this, it is necessary to provide a display device that can protect a display screen.

A display device includes a housing, a display screen housed in the housing, and a screen protection device. An accommodating portion is disposed on the top of the display screen on the casing, and an opening is formed in the accommodating portion. The screen protection device comprises a power transmission mechanism and a protection screen. The power transmission mechanism is disposed in the accommodating portion, and the protection screen is fixed to the power transmission mechanism through the opening. The protective screen is used to be wound on the power transmission mechanism or unfolded from the power transmission mechanism under the driving of the power transmission mechanism to cover the display screen.

A display device includes a housing, a display screen housed in the housing, and a screen protection device fixed to the housing. The housing has a receiving portion. The screen protection device comprises a power transmission mechanism and a protection screen. The power transmission mechanism is disposed in the accommodating portion, and the protection screen is fixed on the power transmission mechanism. The protective screen is wound on the power transmission mechanism or unfolded from the power transmission mechanism under the driving of the power transmission mechanism to cover the display screen.

In the above display device, the protective screen can be unfolded to cover the display screen by providing a screen protection device in the casing. In this way, the display screen can be prevented from being scratched by a hard object.

100‧‧‧ display device

12‧‧‧ display

120‧‧‧Receiving Department

124‧‧‧ openings

302‧‧‧Power Transmission Mechanism

306‧‧‧Protection curtain

314‧‧‧Motor

322‧‧‧Backlight module

20‧‧‧Base

10‧‧‧shell

102‧‧‧ upper edge

122‧‧‧ Groove

30‧‧‧Screen protector

304‧‧‧stops

312‧‧‧ drive shaft

320‧‧‧Processing unit

324‧‧‧Setting unit

FIG. 1 is a schematic structural view of a display device according to a preferred embodiment.

Fig. 2 is a view showing a state of use of the display device shown in Fig. 1.

3 is a functional block diagram of the display device of FIG. 1.

Referring to FIG. 1 and FIG. 2 , a display device 100 according to a preferred embodiment includes a housing 10 , a base 20 for supporting the housing 10 , and a display screen received in the housing 10 . 12 and screen protector 30.

The upper edge 102 of the housing 10 remote from the base 20 has a level of receiving portion 120. An elongated groove 122 is defined in the receiving portion 120. The receiving portion 120 defines a groove 122 and defines an elongated opening 124. The width of the groove 122 is greater than the width of the opening 124.

The screen protector 30 includes a power transmission mechanism 302, a stop 304, and a protective curtain 306. The power transmission mechanism 302 is disposed in the accommodating portion 120 and includes a drive shaft 312 and a motor 314. The motor 314 is fixed in the housing portion 120. One end of the drive shaft 312 is rotatably mounted in the housing portion 120, and the other end is coupled to the motor 314.

The protective curtain 306 is made of a soft material. The protective curtain 306 is square and has an edge fixed to the drive shaft 312 of the power transmission mechanism 302 through the opening 124, and the other edge opposite thereto is coupled to the stopper 304. The protective screen 306 is wound around the drive shaft 312 when the backlight of the display device 100 is turned on, and the stopper 304 is received in the recess 122. In the present embodiment, the size of the stop 304 is greater than the width of the opening 124.

Referring to FIG. 3 together, the display device 100 includes a processing unit 320, a backlight module 322, and a setting unit 324. In the present embodiment, the display device 100 is a liquid crystal monitor. The processing unit 320 is configured to detect that the backlight of the backlight module 322 is turned off, and generate a first electrical signal to the motor 314. The motor 314 generates power according to the first electric signal to drive the drive shaft 312 to rotate forward. The protection screen 306 generates a downward driving force under the driving force of the forward rotation of the drive shaft 312. Stop member 304 is The self-gravity and the downward urging force of the protection curtain 306 slides out of the groove 122, and the protection curtain 306 moves in a direction away from the power transmission mechanism 302 under the driving force of its own gravity and the forward rotation of the drive shaft 312. The setting unit 324 is configured to accept a time when the user presets the rotation of the motor 314, and the setting manner may be set by a remote controller (not shown) that controls the display device 100 or a button (not shown) disposed on the display device 100. . The processing unit 320 is configured to calculate the time during which the motor 314 is rotating forward, and compare the forward rotation time with the preset time. When the forward rotation time is equal to the preset time, the processing unit 320 controls the motor 314 to stop rotating. Thus, when the motor 314 stops rotating, the protective screen 206 is unfolded to cover the protective display screen 14, as shown in FIG. 2, to prevent the display screen 14 from being contaminated with dust or scratched by the external hard object.

In other embodiments, the setting unit 324 can also be used to accept the user to preset the number of revolutions of the motor 314, and the processing unit 320 is configured to calculate the number of revolutions of the motor 314 and compare the number of revolutions with the preset number of turns. When the number of revolutions is equal to the preset number of turns, the processing unit 320 controls the motor 314 to stop rotating.

The processing unit 320 is further configured to detect that the backlight of the backlight module 322 is turned on, and generate a second electrical signal to the motor 314. The motor 314 generates power according to the second electric signal to drive the drive shaft 312 to rotate in the reverse direction. The protection screen 306 moves in the direction of the power transmission mechanism 302 under the driving force of the reverse rotation of the drive shaft 312, and generates an upward traction force. The processing unit 320 is configured to calculate the time during which the motor 314 is reversely rotated, and compare the reverse rotation time with a preset time. When the reverse rotation time is equal to the preset time, the processing unit 320 controls the motor 314 to stop rotating. As such, when the motor 314 stops rotating, the protective curtain 306 is wound around the drive. On the shaft 312, the stopper 304 is received in the recess 122 as shown in FIG. Since the size of the stop 304 is greater than the width of the opening 124, the stop 304 can be prevented from passing through the opening 124 under the upward traction of the protective curtain 306.

In the present embodiment, by providing the screen protector 30 on the display device 100, when the backlight of the display device 100 is turned off, the protective screen 306 can unfold and cover the display screen 12. In this way, the display screen 14 can be prevented from being scratched by the external hard object, and the display screen 14 can be prevented from being contaminated with dust or dirt. When the backlight of the display device 100 is turned on, the protection screen 306 can be retracted and wound on the drive shaft 312, and the stopper 304 is received in the groove 122. In this way, the user can watch video programs, images, and the like through the display screen 14.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above descriptions are only preferred embodiments of the present invention, and those skilled in the art will be able to include equivalent modifications or variations in the spirit of the present invention.

10‧‧‧shell

122‧‧‧ Groove

304‧‧‧stops

20‧‧‧Base

124‧‧‧ openings

306‧‧‧Protection curtain

Claims (11)

A display device includes a housing and a display screen received in the housing, wherein the housing is provided with a receiving portion at the top of the display screen, and the receiving portion is provided with a groove, and the receiving portion forms a groove The display device further includes a screen protection device, the screen protection device includes a power transmission mechanism and a protection screen, the power transmission mechanism is disposed in the accommodating portion, and an edge of the protection screen is fixed to the power transmission through the opening Institutionally, the other edge opposite to the protection curtain is connected with the stopper; the protection curtain is wound on the power transmission mechanism or unfolded from the power transmission mechanism to cover the display screen under the driving of the power transmission mechanism When the protective curtain is wound on the power transmission mechanism, the stopper is received in the groove. The display device of claim 1, wherein the power transmission mechanism comprises a drive shaft and a motor fixed in the accommodating portion, and one end of the drive shaft is rotatably mounted in the accommodating portion, and the other end is connected to the motor. The display device of claim 2, wherein the display device comprises a processing unit and a backlight module, wherein the processing unit is configured to detect opening and closing of the backlight module, and control the motor to drive the driving shaft according to the detection result. Rotate to drive the protective curtain to expand or contract. The display device of claim 3, wherein the display device further comprises a setting unit for setting a condition for stopping the rotation of the motor, the processing unit for detecting that the control module is driven when the backlight module is turned off. The drive shaft rotates in the forward direction, causing the protective screen to move away from the power transmission mechanism. The cover unit is further configured to: when the backlight module is turned on, the control motor drives the reverse rotation of the drive shaft to move the protection screen toward the power transmission mechanism to shrink and wind on the drive shaft, The processing unit also controls the motor to stop rotating according to the setting conditions of the setting unit. The display device according to claim 4, wherein the setting unit sets the condition for stopping the rotation of the motor to set a time or a number of turns of the motor. A display device includes a housing and a display screen received in the housing, wherein the housing has a receiving portion, the receiving portion is provided with a recess, and the display device further comprises a screen protection device disposed in the housing The screen protection device comprises a power transmission mechanism and a protection screen. The power transmission mechanism is disposed in the accommodating portion, and an edge of the protection screen is fixed on the power transmission mechanism, and the other edge and the stop opposite to the protection screen The protective device is wound on the power transmission mechanism or unfolded from the power transmission mechanism to cover the display screen under the driving of the power transmission mechanism; when the protection curtain is wound on the power transmission mechanism, the protection member is Contained in the groove. The display device of claim 6, wherein the power transmission mechanism comprises a drive shaft and a motor fixed in the accommodating portion, one end of the drive shaft is rotatably mounted in the accommodating portion, and the other end is connected to the motor. The display device of claim 7, wherein the display device comprises a processing unit and a backlight module, wherein the processing unit is configured to detect the opening and closing of the backlight module, and control the motor to drive the driving shaft according to the detection result. Rotate to drive the protective curtain to expand or contract. The display device of claim 8, wherein the display device further includes a setting unit configured to set a condition for the motor to stop rotating, The processing unit is configured to detect that the driving module drives the driving shaft to rotate in the forward direction when the backlight module is turned off, so that the protection screen moves away from the power transmission mechanism to expand and cover the display screen; the processing unit is further configured to detect the backlight When the module is turned on, the control motor drives the drive shaft to rotate in the reverse direction, so that the protection screen moves toward the power transmission mechanism to shrink and wind on the drive shaft. The processing unit also controls the motor to stop rotating according to the setting condition of the setting unit. The display device according to claim 9, wherein the setting unit sets the condition for stopping the rotation of the motor to set a time or a number of turns of the motor. The display device of claim 1, wherein the width of the groove is greater than the width of the opening, and the size of the stopper is greater than the width of the opening.