TWI483094B - Notebook computer - Google Patents

Description

Notebook computer

The present invention relates to a notebook computer.

At present, notebook computers have become more and more popular, and there is a trend to replace desktop computers. The humanized design of notebook computers is becoming more and more important. The biggest advantage of a notebook computer is that it is easy to carry and can be used in many places. However, if you use a notebook computer in the wild or in other dark places, there will be cases where the surrounding light is too dark and inconvenient to use. Some users The flashlight will be used for illumination, but this method is very inconvenient.

In view of the above, it is necessary to provide a notebook computer with illumination and indication functions.

A notebook computer comprising a keyboard portion, a monitor portion, a light source and a light source control circuit disposed on the keyboard portion or the monitor portion, the light source control circuit including first to third electronic switches, and the control end of the first electronic switch is connected Up to a working voltage terminal, the working voltage terminal supplies a voltage when the notebook computer is in an operating state and does not provide a voltage when the notebook computer is in a sleep state, and the first end of the first electronic switch is connected to the first end of the light source And the first end of the third electronic switch, the second end of the light source is connected to a standby voltage terminal, and the standby voltage terminal provides a voltage when the notebook computer is in an active state and a sleep state, and the second electronic switch is controlled. Connected to a sleep At the end of the sleep signal, the sleep signal terminal provides a square wave signal composed of a high and low level when the notebook is in a sleep state, and the first end of the second electronic switch is connected to the standby voltage terminal and the third electronic switch The control terminal, the second ends of the first to third electronic switches are all grounded, and the first to third electronic switches are turned on when the control terminal is at a high level and are turned off when the control terminal is at a low level.

The notebook computer controls the light source to keep illumination when the notebook computer is working through the light source control circuit, to provide illumination for the keyboard portion while indicating that the notebook computer is in working state, and to control the light source in the note The flashing while the computer is in hibernation indicates that the notebook is in a dormant state and is very user-friendly.

100‧‧‧Note Computer

10‧‧‧ Keyboard section

20‧‧‧Monitor section

30‧‧‧ shaft

40‧‧‧Light source

50‧‧‧Light source control circuit

R1-R4‧‧‧ resistance

Q1-Q3‧‧‧Optoelectronics

3D3V‧‧‧ working voltage terminal

S3_sleep#‧‧‧Sleep signal end

5V_DUAL‧‧‧ spare voltage terminal

1 is a schematic view of a first preferred embodiment of a notebook computer of the present invention.

2 is a schematic view showing a second preferred embodiment of the notebook computer of the present invention.

3 is a partial circuit diagram of the notebook computer of FIGS. 1 and 2.

Referring to FIG. 1 and FIG. 2, the notebook computer 100 of the present invention includes a keyboard portion 10 and a monitor portion 20, and the keyboard portion 10 and the monitor portion 20 are connected through a rotating shaft 30. The above part is a prior art, here It is not specified. Wherein, in the first preferred embodiment of FIG. 1, an intermediate portion of the uppermost portion of the keyboard portion 10, that is, a portion adjacent to the rotating shaft 30, is provided with an elongated light source 40, which is the second in FIG. In a preferred embodiment, the elongated light source 40 is disposed at a portion of the lowermost intermediate portion of the monitor portion 20 that is also adjacent to the rotating shaft 30. The light source 40 is disposed at the uppermost portion of the keyboard portion 10 or at the lowermost intermediate position of the monitor portion 20 in order to improve the illumination effect of the light source 40 so that the user can conveniently be darker. This keyboard portion 10 is used.

The light source 40 in the above embodiment is a light emitting diode, and other types of light sources may be selected in other embodiments. The difference between the first and second preferred embodiments is only that the position of the light source 40 is different, and other parts are the same. Other embodiments may also be at the uppermost portion of the keyboard portion 10 and the most of the monitor portion 20 at the same time. Two light sources 40 are disposed at the lower intermediate position to make the lighting effect better, and the design can be designed according to actual needs.

Referring to FIG. 3, the present invention further provides a light source control circuit 50 for controlling the light source 40. The light source control circuit 50 includes the light source 40, four resistors R1-R4, and three NPN-type transistors Q1-Q3. In other embodiments, the NPN type transistors Q1-Q3 may also be selected from other types of electronic switches, such as field effect transistors.

The first end of the resistor R1 is connected to a working voltage terminal 3D3V inside the notebook computer 100, and the working voltage terminal 3D3V provides a voltage (such as 3.3V) when the notebook computer 100 is in an operating state, and is in a sleep state in the notebook computer 100. No voltage is supplied in the state. The second end of the resistor R1 is coupled to the base of the transistor Q1, the emitter of the transistor Q1 is grounded, and the collector is coupled to the cathode of the source 40 and the collector of the transistor Q3. The anode of the light source 40 is connected to the standby voltage terminal 5V_DUAL inside the notebook computer 100 through the resistor R3. The standby voltage standby voltage terminal 5V_DUAL provides a voltage (for example, 5V) when the notebook computer 100 is in an active state and a sleep state. The first end of the resistor R2 is connected to a sleep signal terminal S3_sleep# of the notebook computer 100, and the sleep signal terminal S3_sleep# is always in a high state when the notebook computer 100 is in an active state, and is in a sleep state in the notebook computer 100. The state provides a square wave signal composed of high and low levels. The second end of the resistor R2 is connected to the base of the transistor Q2, the emitter of the transistor Q2 is grounded, and the collector is connected to the standby voltage terminal 5V_DUAL through the resistor R4. . The emitter of the transistor Q3 is grounded and the base is connected to the collector of the transistor Q2.

During operation, if the notebook computer 100 is in an active state, since the standby voltage terminal 5V_DUAL and the working voltage terminal 3D3V are both supplied with voltage, the transistor Q1 is always kept in an on state, and thus the light source 40 is always in a power-on state. That is, the light source 40 is always illuminated. At this time, the light source 40 has a function of indicating that the notebook computer 100 is in an operating state, and since it is disposed at the uppermost portion of the keyboard portion 10 or at the lowermost intermediate position of the monitor portion 20, Therefore, the keyboard portion 10 can be provided with illumination light at the same time, so that the user can conveniently perform keyboard operation in a place with low light.

If the notebook computer 100 is in the sleep state, the working voltage terminal 3D3V does not provide a voltage, the transistor Q1 is always kept off, because the sleep signal terminal S3_sleep# provides a high and low voltage when the notebook computer 100 is in the sleep state. When the sleep signal terminal S3_sleep# is at a high level, the transistor Q2 is turned on, and the transistor Q3 is turned off, and the light source 40 does not emit light, and the sleep signal terminal S3_sleep# is low. At the level, the transistor Q2 is turned off, and the transistor Q3 is turned on, and the light source 40 is illuminated. Moreover, since the sleep signal terminal S3_sleep# is a square wave signal, the light source 40 is in a blinking state when the notebook computer 100 is in a sleep state, thereby instructing the notebook computer 100 to be in a sleep state.

The light source 40 designed by the notebook computer 100 of the present invention can be used not only to indicate the operating state of the notebook computer 100, but also because the light source 40 is disposed at the uppermost portion of the keyboard portion 10 or at the lowermost intermediate position of the monitor portion 20. Therefore, it is also possible to provide illumination for the keyboard portion 10 when the light is dim, making it more user-friendly.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above is only a preferred embodiment of the present invention, and those skilled in the art will be familiar with the present invention. Equivalent modifications or variations made in accordance with the spirit of the invention are intended to be included within the scope of the following claims.

40‧‧‧Light source

50‧‧‧Light source control circuit

R1-R4‧‧‧ resistance

Q1-Q3‧‧‧Optoelectronics

3D3V‧‧‧ working voltage terminal

S3_sleep#‧‧‧Sleep signal end

5V_DUAL‧‧‧ spare voltage terminal

Claims (4)

A notebook computer comprising a keyboard portion and a monitor portion, wherein the notebook computer further comprises: a light source and a light source control circuit disposed on the keyboard portion or the monitor portion, the light source control circuit comprising first to third electronic switches The control end of the first electronic switch is connected to an operating voltage terminal, the working voltage terminal provides a voltage when the notebook computer is in an active state, and does not provide a voltage when the notebook computer is in a sleep state, the first electronic switch One end is connected to the first end of the light source and the first end of the third electronic switch, and the second end of the light source is connected to a standby voltage end, and the standby voltage end is in a working state and a sleep state of the notebook computer Providing a voltage, the control end of the second electronic switch is connected to a sleep signal end, and the sleep signal end provides a square wave signal composed of a high level and a low level when the notebook computer is in a sleep state, the first of the second electronic switch The end is connected to the standby voltage terminal and the control end of the third electronic switch, and the second ends of the first to third electronic switches are grounded, the first When the third electronic switch control terminal is high, and turned off when the control terminal is low. The notebook computer of claim 1, wherein the first to third electronic switches are NPN type transistors, and the control end, the first end and the second end respectively correspond to the base, the collector and the shot. pole. The notebook computer of claim 1, wherein the light source is disposed at an uppermost intermediate position of the keyboard portion or at a lowermost intermediate position of the monitor portion. The notebook computer of claim 3, wherein the light source is elongated.