KR20050012966A - Smart display apparatus and method for control thereof - Google Patents

Abstract

PURPOSE: A portable display device to display a state through the OSD(On Screen Display) or an LED(Light Emitting Diode), and a method for controlling state display of the same are provided to display the state of an internal system and a battery charge of the portable display device even if the portable display device is docked and performs wired communication. CONSTITUTION: A wireless module(250) receives a wireless signal from the outside. A power supply(205) supplies power by being charged. A connector(220) is electrically connected to a docking station(100) in order to receive a wired signal by being docked to the docking station. A main controller(280) outputs state information by confirming at least one of an internal system state and a remained charge state of the power supply after being docked to the docking station. A display part(240) displays the confirmed state information.

Description

Portable display apparatus capable of status display and control method thereof

The present invention relates to a portable display device capable of displaying a status and a method for controlling the status display thereof. More specifically, the present invention relates to a method of checking a state of an internal system and a state of charge of a battery mounted therein, even when performing wired communication with an external device. The present invention relates to a portable display device capable of displaying a status display that can be displayed and a control method of the status display thereof.

Recently, as the functions of advanced information services using communication equipment have been expanded, research on portable electronic products has been actively conducted. Portable electronic products are excellent in mobility and portability to perform various tasks desired by a user without limitations of time and place. Examples of portable electronic products include smart display devices, notebook computers, personal digital assistants (PDAs), and cellular phones.

Among them, the smart display device is a portable display device having a form similar to that of a PDA, and is connected to a host PC serving as a server in a wireless LAN manner to perform wireless communication. In order to use such a smart display device, a server-based computing (SBC) wireless infrastructure must be equipped in the home.

In addition to wireless communication, the smart display device also performs wired communication with a host PC through a docking station. A docking station refers to a hardware device and an interface for accessing a smart display device as conveniently as a desktop computer. The docking station expands the utilization of the product by allowing the host PC, which provides various expansion ports, cables, storage media, and the like, to be electrically and communicatively connected.

Meanwhile, the smart display device operates in a wireless monitor mode by communicating with a host PC using a wireless module when the smart display device is separated from the docking station, and operates in a wired monitor mode by performing only a general monitor function when docked. When the smart display device operates in the wireless monitor mode, the smart display device is powered by a portable power supply such as a battery mounted on the device itself. Therefore, when the smart display device operates in the wireless monitor mode, the smart display device checks the internal system state, the state of charge of the battery, and outputs the signal as a user can recognize.

However, when the smart display device operates in the wired monitor mode, the conventional smart display device does not provide the user with the internal system, the state of charge of the battery, etc. by performing only a general monitor function connected to the host PC. Therefore, the user may not recognize the device state, the battery state, etc. of the smart display device operating in the wired monitor mode, thereby causing inconvenience in use.

An object of the present invention is to provide a portable display device capable of displaying and displaying a state of an internal system and a state of charge of a battery in a wired monitor mode, and a method of controlling the state display thereof.

1 shows a smart display device connected with a host PC by a docking station, FIG.

2 is a block diagram schematically illustrating a smart display device capable of displaying a status according to an exemplary embodiment of the present invention;

FIG. 3 is a diagram illustrating an embodiment of a status display guide message displayed by the smart display device of FIG. 2, and

FIG. 4 is a flowchart for schematically describing a method for controlling status display of the smart display device illustrated in FIG. 2.

Description of the main parts of the drawing

100: docking station 200: smart display device

205: power supply unit 210: key operation unit

220: first connector 230a: OSD processing unit

240: display unit 250: wireless module

260: sub controller 280: main controller

290: light emitting unit 300: host PC

In order to solve the above technical problem, the portable display device capable of displaying the status according to the present invention, the wireless module for receiving a wireless signal from the outside, a power supply for supplying power by charging, and docked to the external device A connector electrically connected to the external device to receive a wired signal, a control unit which outputs state information by checking at least one of an internal system state and a remaining charge state of the power supply unit after docking to the external device, and And a status display unit for displaying the status information.

More specifically, the status display unit further OSD-processes the checked status information, and further includes a display unit for displaying the OSD information processed by the OSD.

Preferably, the apparatus further includes a storage unit for storing the status information identified by the controller, wherein the controller controls the status display unit to read the status information from the storage unit and process the OSD.

The state display unit may include at least one light emitting device that emits light differently according to the identified state information, and the controller controls the state display unit so that the number of light emitting devices that emit light according to the state information is different. .

Preferably, the apparatus further includes a status display request unit for outputting a status display request signal for at least one of the internal system state and the remaining charge state, wherein the control unit requests the state display request from the internal system state and the remaining charge state. Check the state corresponding to the signal.

On the other hand, in order to solve the above technical problem, in the state display control method of a portable display device which performs wireless communication according to the present invention and supplies power by charging, docking to an external device to perform wired communication And receiving a display request signal for at least one of the internal system state and the remaining charge state, checking the state information corresponding to the display request signal, and confirming the checked state information. Displaying.

In more detail, the displaying of the status information further includes the step of OSD signal processing the identified status information, and after the displaying of the status information, converting and displaying the processed OSD information into a viewable signal. .

Further, in the status information display step, different numbers of light emitting devices emit light according to the confirmed status information.

Hereinafter, with reference to the accompanying drawings will be described the present invention in more detail.

1 is a diagram illustrating a smart display device connected to a host PC by a docking station, and FIG. 2 is a block diagram schematically illustrating a smart display device capable of displaying a status according to a preferred embodiment of the present invention.

Referring to FIG. 1, the smart display device 200 is docked to the docking station 100 and connected to the host PC 300 to enable wired communication. When docked with the docking station 100, the smart display device 200 operates in a wireless monitor mode by communicating with an external network or a host PC 300 using a wireless module (not shown). On the other hand, when docked to a docking station, the smart display device 200 operates in a wired monitor mode that performs a general monitor function of the host PC 300. That is, the smart display apparatus 200 transmits and receives a wireless signal by performing wireless communication with the outside, and when the docking station 100 is docked with the docking station 100 performs a wired communication to transmit and receive a wired signal.

A block diagram according to an embodiment of such a smart display device 200 is shown in FIG. 2, and FIG. 2 is a view showing only blocks related to the status display process of the smart display device 200 according to the present invention. Illustrations of blocks related to (e.g., voice signal) processing are omitted for ease of explanation.

Referring to FIG. 2, the smart display device 200 according to an exemplary embodiment of the present invention may include a power supply unit 205, a key operation unit 210, a first connector 220, a scaler 230, and an image signal processing unit 235. ), A display unit 240, a wireless module 250, a sub controller 260, a storage unit 270, a main controller 280, and a light emitting unit 290. In addition, the OSD processing unit 230a and the light emitting unit 290 of the scaler 230, which will be described later with reference to FIG. 2, are applied as a state display unit displaying state information.

The power supply unit 205 supplies power to the smart display device 200. In the present invention, a battery pack including a battery (not shown) and a battery remaining detection chip (not shown) that supply power by charging is applied. The battery remaining detection chip (not shown) is a chip for detecting a state of charge of the battery (not shown).

The key manipulation unit 210 is a user interface that outputs a command for setting or performing a function supported by the smart display device 200 to the main controller 280. To this end, the key operation unit 210 has a plurality of operation keys (not shown), such as numeric keys, direction keys, confirmation keys, or the touch screen.

In the present invention, the key operation unit 210 is provided with a status display request unit 210a. The status display request key 210a is an internal state of the smart display device 200 (hereinafter referred to as an "internal system state"), and a state of charge of the battery provided in the power supply unit 205 (hereinafter referred to as "battery state"). ), And the like, and request to display the confirmed state as a signal recognizable by the user. The status display request unit 210a is provided for each of the internal system status and the battery status display request, or the one or more of the internal system status and the battery status display request is selected by the number of times that the status display request unit 210a is selected within a predetermined time. You can choose.

The first connector 220 is a type of terminal that is electrically connected to the second connector 110 of the docking station 100 so that the smart display device 200 is docked. When the first and second connectors 220 and 110 are connected and the smart display device 200 is docked, the smart display device 200 operates in a wired monitor mode and the first and second connectors are connected from the host PC 300. Receive a wired signal through (220, 110). For example, when a video signal is received as a wired signal, the received wired video signal is input to the scaler 230 under the control of the main controller 280.

The scaler 230 adjusts the scale, resolution, and the like of the wired video signal input from the scaler 230 and the wireless video signal input from the wireless module 250 to suit the product specifications of the smart display device 200. In addition, the scaler 230 includes an on-screen display (OSD) processor 230a. The OSD processor 230a processes various text and image information to be displayed on the display unit 240 to be described later as an OSD signal. When the wired image signal is output from the scaler 230, the OSD signal generated by the OSD processor 230a is provided to the image signal processor 235 together with the wired image signal.

In the present invention, when the status display request unit 210a is selected and the internal system state or the battery state is confirmed by the sub-control unit 260 which will be described later, the OSD processing unit 230a processes the guide message suitable for the status information by OSD signal processing. do.

The video signal processor 235 converts the wired video signal or the wireless video signal provided from the scaler 230 into a signal that can be recognized by the user. In detail, the image signal processor 235 converts the pixel data of the parallel form provided from the scaler 230 into the low power serial pixel data for displaying an image on the display unit 240. It is a transmitter. Then, the LVDS receiving chip (not shown) in the display unit 240 converts the serial data into original parallel data and implements the image.

When the smart display device 200 operates in the wired monitor mode, when the status display requesting unit 210a is selected, the image signal processing unit 235 may combine the composite signal including the wired image signal and the OSD signal input from the scaler 230. Format conversion to LVDS signal. In addition, when the smart display device 200 operates in the wireless monitor mode, when the status display requesting unit 210a is selected, the image signal processing unit 235 is composed of a wireless image signal input from the scaler 230 and an OSD signal. Format the signal to LVDS signal.

The display unit 240 displays the image signal converted by the image signal processor 235 on the screen. In portable electronic products such as the smart display device 200, it is preferable to use a TFT-LCD (Thin Film Transistor-Liquid Crystal Display) for miniaturization and light weight, but is not limited thereto. In addition, when a touch screen is applied as the key manipulation unit 210, a touch panel is provided on the display unit 240.

The wireless module 250 receives a radio signal transmitted by a radio frequency from the outside such as the host PC 300. When the received wireless signal is a video signal, the wireless video signal is decoded by a codec (not shown) and sequentially input to the main controller 280 and the scaler 230.

The sub controller 260 is an input / output companion processor for releasing the load of the main controller 280. In the present invention, the sub controller 260 periodically checks an internal system state, a battery state, and the like under the control of the main controller 280. The internal system state can be checked using a control program such as an operating system or separate software, and the battery state can communicate with a battery level detection chip (not shown) provided in the power supply unit 205 to check the state of charge of the battery.

The storage unit 270 is an EEPROM (Electri- cally Erasable and Programmable ROM). The storage unit 270 stores information such as an internal system state and a battery state identified by the sub-control unit 260, and the stored information is periodically updated.

The main controller 280 controls the overall operation of the smart display apparatus 200 according to various stored control programs and key operation signals corresponding to the key manipulation unit 210.

For example, the main controller 280 determines whether the smart display device 200 is docked. In addition, when it is determined that the first connector 220 is docked by being connected to the second connector 110 of the docking station 100, when the status display request signal is received from the status display requesting unit 210a, And / or controls the sub-controller 260 to check the battery status and display a guide message.

Then, the OSD processor 230a is controlled to generate the status information checked by the sub controller 260 as an OSD message. For example, when the display request signal for the battery status information is received by the status display requesting unit 210a, the sub controller 260 checks the battery status information under the control of the main controller 280, and the main controller ( 280 controls the OSD processor 230a to generate the identified battery state information as an OSD message as shown in FIG. The OSD message may be implemented in various forms other than the text and bar graph shown in FIG.

In the same way, when the display request signal for the internal system status information is received by the status display requesting unit 210a, the sub-control unit 260 checks whether there is an abnormal state of the internal system state under the control of the main controller 280. The main controller 280 controls the OSD processor 230a to generate information on whether there is an abnormality in the identified internal system state as an OSD message.

On the other hand, the guide message for the status information may be displayed by a light emitting device such as a light emitting diode (hereinafter referred to as "LED"), as well as the OSD message. To this end, the smart display device 200 further includes a light emitting unit 290. The light emitting unit 290 includes a plurality of LEDs that emit a single color, or at least one color-LED that emits a plurality of colors alone, as shown in FIG.

When a plurality of LEDs are applied as the light emitting unit 290, the light emitting unit 290 emits a different number of LEDs according to the remaining charge state of the battery, that is, the charging level. In addition, the number of general LEDs that are emitted also varies depending on whether an internal system state is abnormal. Similarly, when the color-LED that can realize a plurality of colors with one LED as the light emitting unit 290 is applied, the light emitting unit 290 according to the battery state (ie, the charge level), or of the internal system state Different colors are displayed depending on the abnormality. The operation of the light emitting unit 290, that is, the number of light emitting elements emitting light according to the state information, or the operation of emitting different colors according to the state information is performed by the control of the main controller 280 or the sub controller 260. .

FIG. 4 is a flowchart for schematically describing a method for controlling status display of the smart display device illustrated in FIG. 2.

1 to 4, first, the smart display device 200 is docked at the docking station 100 to perform wired communication with the host PC 300. When the status display request signal is received from the status display request unit 210a while performing wired communication with the host PC 300, the main controller 280 checks whether the battery status display request signal is performed (S410 and S420).

If it is determined in step S420 that the battery status display request signal, the main controller 280 controls the sub-control unit 260 to check the battery state, that is, the battery charge remaining amount to store in the storage unit 270 (S430). In addition, the main controller 280 controls the OSD processor 230a to process and display an OSD message for the confirmed status information (S440).

On the other hand, if it is determined in step S420 not the battery status display request signal, the main controller 280 determines that the internal system status display request signal, and checks the internal system status to store in the storage unit 270 sub-controller ( 260 is controlled (S450, S460). In addition, the main controller 280 controls the OSD processor 230a to display and display an OSD message as a guide message for the identified abnormality of the system (S470). The OSD-processed guide message is converted into a viewable signal by the image signal processor 235 and displayed on the display unit 240.

In addition, in steps S440 and S470, the main controller 280 may control the light emitter 290 to display a battery state or an internal system state by emitting at least one LED instead of the OSD processor 230a. At this time, the number or color of light emitting elements to be emitted is preferably different depending on the battery state or the internal system state.

Meanwhile, in the smart display apparatus 200 and the state display control method of the smart display device according to the present invention, the state display is not only the light emitting unit 290 using the OSD message, LED, but also seven-segment light emission. An element can also be used. The seven-segment light emitting device can display a guide message composed of numbers and letters appropriate to the battery state and the internal system state using seven independent light emitting devices.

In addition, in the smart display device 200 and the state display control method of the smart display device according to the present invention, the state display is converted into an audibly recognizable signal and can be output through a speaker (not shown).

In addition, in the smart display device 200 and the state display control method according to the present invention described above, when the smart display device 200 operates in a wired monitor mode, the smart display device 200 is the internal system state, the battery In addition to the status, it is possible to check all the states of the smart display apparatus 200 such as a function set in the smart display apparatus 200, for example, an alarm function and data reception rate information with an external network, and display them as a signal that the user can recognize. Of course it can.

In addition, in the smart display device 200 and the method for controlling the status display of the smart display device according to the present invention, the received wireless video signal is encoded and received to suit the size of the display unit 240 of the smart display device 200. In this case, the wireless module 250 may be designed to provide the received wireless image signal to the image signal processor 120 without passing through the scaler 230. In this case, when the main control unit 280 determines whether the docking to send a control signal, the image signal processing unit 235 is a wired video signal input from the scaler 230 and the wireless module 250 to be described later and using its own switch and One of the wireless video signals is selectively switched to convert the format into a displayable signal.

In addition, in the smart display apparatus 200 and the state display control method of the smart display apparatus according to the present invention described above, the state information checked by the sub-control unit 260 is not stored in the storage unit 270, but the main controller 280. ) May be directly provided to the OSD processing unit 230a or the light emitting unit 290.

According to the smart display device 200 and the method for controlling the status display of the smart display device according to the present invention, when the docked smart display device 200 is docked and used as a general monitor, it may be changed to a wireless monitor mode. do. In this case, the user may recognize in advance that the battery is discharged even while using the general monitor, and thus, it is possible to charge the battery of the smart display device 200 in advance before changing to the wireless monitor mode.

Although the present invention has been described in detail through the representative embodiments, those skilled in the art to which the present invention pertains can make various modifications without departing from the scope of the present invention with respect to the embodiments described above. Will understand. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

As described above, according to the present invention, a portable display apparatus capable of displaying a status and a method for controlling the status display thereof, even when the portable display apparatus capable of wired / wireless communication is docked to perform wired communication, the internal system state of the portable display apparatus. It is possible to check and display the battery charging status. At this time, the guidance message of the status display is implemented as an OSD message on the screen, or by the light emission of the LED, the character by 7 segments, the sound output by the speaker, etc., the user can recognize the current state more easily.

Claims (9)

A wireless module for receiving a wireless signal from the outside; A power supply unit supplying power by charging; A connector docked to an external device and electrically connected to the external device to receive a wired signal; A control unit which outputs state information by checking at least one of an internal system state and a remaining charge state of the power supply unit after being docked to the external device; And And a status display unit for displaying the identified status information. The method of claim 1, The status display unit OSD processing the confirmed status information, And a display unit for displaying the state information processed by the OSD. The method of claim 2, And a storage unit for storing the state information identified by the controller. And the control unit controls the status display unit to read the status information from the storage unit and process the OSD. The state display unit is composed of at least one light emitting device that emits differently according to the confirmed state information, And the control unit controls the status display unit so that the number of the light emitting elements emitting light according to the status information is different. The method of claim 1, And a status display request unit for outputting a status display request signal for at least one of the internal system state and the charge remaining state. And the controller checks a state corresponding to the state display request signal among the internal system state and the charge remaining state. In the method of controlling the status display of a portable display device performing wireless communication and supplying power by charging, Docking to an external device to perform wired communication; Receiving a display request signal for at least one of state information of an internal system state and a charge remaining state; Checking the status information corresponding to the display request signal; And Displaying the identified status information; and controlling the status display of a portable display device. The method of claim 6, The status information display step of the status display control method of the portable display device, characterized in that for processing the OSD signal. The method of claim 7, wherein After the status information display step, And converting the status information processed by the OSD signal into a viewable signal and displaying the converted status information. The method of claim 6, The status information display step of the status display control method of the portable display device, characterized in that different number of light emitting elements are emitted in accordance with the confirmed status information.