TWI382731B - Electronic device with cursor control apparatus - Google Patents

Description

Electronic device with cursor control device

The present invention relates to an electronic device having a cursor control device, and more particularly to a mobile phone having a cursor control device.

With the rapid development of technology, electronic devices are becoming smaller and smaller. For example, mobile phones are moving in a light and short direction, and mobile phones with large display screens are increasingly favored by consumers.

The conventional mobile phone mainly uses a combination of a digital key, a function key and a direction key to complete the function of dialing and controlling and confirming the function of the menu. However, this design invisibly increases the size of the mobile phone; in addition, since the button takes up a large area of the mobile phone panel, the area of the display screen of the mobile phone is correspondingly reduced, and the structure cannot satisfy the consumer. The need for miniaturization of mobile phones.

In view of this, it is necessary to provide a large display screen and an electronic device having a cursor control device.

An electronic device with a cursor control device includes a body provided with a display screen. Two roller devices are disposed on the side of the body, and each roller device includes a grating roller, an sensing device and a triggering component. The two grating rollers are rotatably fixed to the body, respectively controlling the movement of the cursor on the display screen in the horizontal and vertical directions and inputting a confirmation command. The sensing device includes a light source and a photosensitive element, and the photosensitive element senses light emitted by the light source through the grating roller to generate a pulse signal reflecting a rotation direction and a speed of the grating roller. The trigger element is composed of the light After the gate roller is pressed, a confirmation signal is generated.

Compared with the prior art, the cursor control device is disposed on the side wall of the electronic device to make a certain area to the display screen, so that the area of the display screen is increased, which is beneficial to the development of the electronic device with the large display screen.

The present invention describes an electronic device having a cursor control device by taking a mobile phone as an example.

Referring to FIG. 1 and FIG. 2, a preferred embodiment of the mobile phone 100 of the present invention is a tablet-type mobile phone, which includes a body 20, two roller modules 40, and a micro processing unit 70 for controlling cursor movement. (See Figure 5).

The body 20 is substantially a rectangular block having a display screen 202 on one side thereof. A strip-shaped recess 204 is defined in each of the adjacent two side walls of the body 20.

The roller module 40 includes a first roller device 41 and a second roller device 42. The first roller device 41 and the second roller device 42 are both received in the body 20 and partially exposed to the body 20 by a corresponding groove 204. The first roller device 41 is described as an example. The first roller device 41 includes a roller set 43, a fixing device 44, a circuit board 45, a sensing device 46 and a triggering component 47.

The roller set 43 is used to control the movement of the cursor in the vertical direction within the display screen 202. The roller set 43 includes a driving wheel 432, two driven wheels 434 and a shaft 436. As shown in FIG. 3 , the preferred embodiment of the driving wheel 432 is a grating roller. The side of the grating roller defines a plurality of light-transmitting and mutually spaced grating holes 4322 . a driving wheel 432 is disposed in the strip groove 204 and Fixed in the middle of the shaft 436. The two driven wheels 434 are respectively sleeved and fixed on the shaft 436 and are located on both sides of the driving wheel 432. The driving wheel 432 and the two driven wheels 434 can rotate together with the shaft 436.

The fixing device 44 includes a carrier plate 442, two supporting columns 444 and two elastic devices 446. The carrier plate 442 is fixed to the inside of the body 20, and a through hole 60 is formed in the middle of the carrier plate 442. The driving wheel 432 corresponds to the through hole 60 and is exposed by the groove 204. The two supporting columns 444 are respectively disposed on the bearing plates 442 on both sides of the through hole 60. Referring to FIG. 4 , a pivot hole 4442 is opened at one end of each support post 444 . The pivot hole 4442 is substantially elongated. The shaft 436 can slide in the direction perpendicular to the carrier plate 442 in the pivot hole 4442 . A protrusion 4444 is defined on the opposite wall of the top of the pivot hole 4442, and the protrusion 4444 is used to restrict the displacement of the shaft 436 in the pivot hole 4442. Each of the elastic devices 446 includes two receiving tubes 4462, two sliders 4464 and two springs 4466. The two receiving cylinders 4462 are respectively disposed on the carrier plate 442 between the two supporting columns 444 and opposite to the two driven wheels 434. Each spring 4466 is received in each of the receiving cylinders 4462. Each of the sliders 4464 is disposed at one end of each spring 4466. The roller set 43 is fixed to the support post 444 by the cooperation of the shaft 436 and the pivot hole 4442, and is slidable along the shaft 436 in a direction perpendicular to the support plate 442. The two driven wheels 434 respectively abut against the slider 4464 of the elastic device 466, and the two elastic devices 446 have a buffering function to prevent the driving wheel when a small external force is applied to the driving wheel 432. 432 was pressed.

The circuit board 45 is disposed below the carrier board 442 and is slightly larger than the area of the carrier board 442.

The sensing device 46 is configured to sense the rotation direction and the rotation speed of the driving wheel 432 in the roller group 43. The sensing device 46 includes a light source 462 and a photosensitive element 464 respectively disposed on the circuit board 45 on both sides of the carrier plate 442 and opposite to the driving wheel 432. The light source 462 can be a light emitting diode, and the emitted light is transmitted from the grating hole 4322 of the driving wheel 432. The photosensitive element 464 can be a phototransistor that senses the intensity, frequency, and direction of incidence of the light transmitted through the driving wheel 432 to generate a pulse signal. In order to enable the photosensitive element 464 to better receive the light from the light source 462 to make the cursor move more sensitive, a tubular body may be added to the light source 462, and the tubular body is disposed along the light source 462 in the direction of the driving wheel 432. The light emitted by the light source 462 is concentrated on the driving wheel 432.

The triggering component 47 is disposed in the middle of the circuit board 45 and is received in the through hole 60 of the carrying board 442. The triggering component 47 includes a contact 472 and an arched spring 474. The contact 472 is disposed on the circuit board 45. The arched elastic piece 474 covers the contact 472 and abuts against the driving wheel 432. The arched elastic piece 474 is deformed by the driving wheel 432 and is in contact with the contact 472 to generate an electrical signal for confirming the signal.

Referring to FIG. 5 , the micro processing unit 70 includes a signal receiving module 702 and a signal processing module 704 .

The signal receiving module 702 is electrically connected to the photosensitive element 464 and the triggering component 47. The signal receiving module 702 is configured to receive the pulse signal generated by the photosensitive element 464 and the electrical signal generated by the triggering component 47.

The signal processing module 704 is electrically connected to the signal receiving module 702, and is configured to calculate a moving distance, a moving speed, and a moving direction of the cursor according to the pulse signal. To, and perform the operation of confirming the command according to the confirmation command signal. The signal processing module 704 is electrically connected to the display screen 202 for controlling the movement of the cursor on the display screen 202 according to the calculated cursor movement command.

The second roller device 42 is used to control the movement of the cursor in the horizontal direction of the display screen 202. The structure of the second roller device 42 is the same as that of the first roller device 41, and therefore will not be described again.

The first roller device 41 will now be described as an example. When the mobile phone 100 having the cursor control device is used, when the cursor is moved in the vertical direction in the display screen 202, an external force is applied to move the driving wheel 432, and the driving wheel 432 drives the two driven wheels 434 and the shaft 436 to rotate together. The light emitted by the light source 462 is transmitted through the grating aperture 4322 of the driving wheel 432 and sensed by the photosensitive element 464 to generate a pulse signal. The signal is processed by the micro processing unit 70 to control the vertical position of the cursor in the display screen 202. Move in the direction. When the confirmation command is input, the driving wheel 432 is pressed, and the driving wheel 432 drives the shaft 436 to move downward in the pivot hole 4442. The driving wheel 432 presses the arched elastic piece 474 to deform and touch the arched elastic piece 474. Point 472 is contacted to confirm the function of the command. At the same time, the second driven wheel 434 also moves downward with the shaft 436 to press the two sliders 4464, so that the spring 4466 is compressed. When the urging force is removed, the slider 4464 pushes the two driven wheels 434 under the action of the spring 4466 elastic force, and the two driven wheels 434 bring the shaft 436 and the driving wheel 432 back to the initial position.

The operation mode of the second roller device 42 is the same as that of the first roller device 41, and therefore will not be described again.

The cursor control device is disposed on a sidewall of the electronic device to free up one The area is given to the display screen, which increases the area of the display screen, which is conducive to the development of electronic devices with large display screens.

It can be understood that the carrier board 442 can be regarded as a plate-like structure inside the body 20 of the mobile phone 100.

It can be understood that the electronic device to which the cursor control device is applied is not limited to a mobile phone, and the cursor control device can also be applied to digital electronic devices such as MP4 and PDA (Personal Digital Assistant).

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.

100‧‧‧Mobile Phone

20‧‧‧ body

202‧‧‧ display screen

204‧‧‧ Groove

40‧‧‧Roller Module

41‧‧‧First roller device

42‧‧‧Second roller device

43‧‧‧Roller set

432‧‧‧Drive wheel

4322‧‧‧Grating aperture

434‧‧‧ driven wheel

436‧‧‧Axis

44‧‧‧Fixed devices

442‧‧‧Loading board

444‧‧‧Support column

4442‧‧‧Pivot hole

4444‧‧‧ bumps

446‧‧‧Flexible device

4462‧‧‧容筒

4464‧‧‧ Slider

4466‧‧‧ Spring

45‧‧‧Circuit board

46‧‧‧Induction device

462‧‧‧Light source

464‧‧‧Photosensitive element

47‧‧‧ Trigger components

472‧‧‧Contacts

474‧‧‧Armed shrapnel

60‧‧‧through hole

70‧‧‧Microprocessing unit

702‧‧‧Signal receiving module

704‧‧‧Signal Processing Module

1 is a perspective view of a preferred embodiment of an electronic device having a cursor control device according to the present invention; FIG. 2 is a cross-sectional view of a first roller device of a preferred embodiment of the electronic device having a cursor control device according to the present invention; A side view of a support column of a preferred embodiment of an electronic device having a cursor control device; FIG. 4 is a side view of a drive wheel of a preferred embodiment of the electronic device with a cursor control device of the present invention; Preferred embodiment of the electronic device of the cursor control device Block circuit diagram.

100‧‧‧Mobile Phone

20‧‧‧ body

202‧‧‧ display screen

204‧‧‧ Groove

40‧‧‧Roller Module

41‧‧‧First roller device

42‧‧‧Second roller device

Claims (7)

An electronic device with a cursor control device, comprising: a body provided with a display screen, wherein the body is provided with two roller devices on the side of the body, each roller device comprising a fixing device, a grating roller and an elastic device An inductive device and a triggering component, the fixing device includes two supporting columns and a shaft, the two supporting columns are fixed in the body, the shaft is rotatably and slidably disposed on the two supporting columns, and the grating roller is fixed on the In the center of the shaft, a driven wheel is respectively fixed on the shafts on both sides of the grating roller, and the elastic device abuts the driven wheel for buffering the grating roller, and the two grating rollers are rotatably fixed on the body to respectively control the display screen Moving the cursor in the horizontal and vertical directions and inputting a confirmation command; the sensing device includes a light source and a photosensitive element, and the photosensitive element senses the light emitted by the light source through the grating roller to generate a rotation reflecting the grating roller The pulse signal of the direction and the rotation speed; the trigger element is pressed by the grating roller to generate a signal for confirming the command. An electronic device having a cursor control device as described in claim 1, wherein the electronic device further comprises a micro processing unit, the micro processing unit comprising a signal receiving module and a signal processing module, the signal receiving module The group is electrically connected to the photosensitive element and the triggering component to receive the pulse signal generated by the photosensitive element and the electrical signal generated by the triggering component; the signal processing module is electrically connected to the signal receiving module for using the pulse signal Calculate the moving distance and moving direction of the cursor, and perform the operation of confirming the command according to the confirmation command signal. An electronic device having a cursor control device according to claim 2, wherein the triggering component comprises a contact and an arch disposed on the contact a shaped elastic piece, the arched elastic piece abuts against the grating roller, and the arched elastic piece is pressed by the grating roller to contact the contact to generate the electrical signal of the confirmation command. The electronic device with the cursor control device of claim 3, wherein one of the support posts has a pivot hole at one end thereof, and the shaft and the pivot hole are fixed to the support post. An electronic device with a cursor control device according to claim 4, wherein a protrusion is protruded from a hole wall of the opposite end of the pivot hole to limit the displacement of the shaft in the pivot hole. The electronic device with the cursor control device of claim 1, wherein the elastic device comprises two accommodating cylinders, two sliders and two springs, and the two accommodating cylinders are corresponding to the corresponding driven wheels. Each spring is respectively received in a corresponding accommodating cylinder, and the sliders are respectively disposed at one end of each spring, so that the sliders respectively abut against the corresponding driven wheels. An electronic device with a cursor control device according to claim 1, wherein the light source is a light emitting diode, and the photosensitive element is a phototransistor.