KR100700661B1 - Liquid Crystal Display Device for having a interrupt device - Google Patents

Abstract

A liquid crystal display device having an interrupt device is disclosed. The liquid crystal display device stores a moving picture screen or a content screen in an external device at a desired moment or outputs it to a printer, thereby increasing the utilization of the liquid crystal display device and improving the merchandise.

Interrupt handler, hard icon key, printer

Description

Liquid crystal display device having an interrupt device {Liquid Crystal Display Device for having a interrupt device}             

1 is a block diagram schematically illustrating a liquid crystal display according to the related art.

2 is a block diagram schematically illustrating an interrupt apparatus of the liquid crystal display according to the exemplary embodiment of the present invention.

3 is a block diagram schematically illustrating an interrupt apparatus of a liquid crystal display according to an exemplary embodiment of the present invention.

The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device having an interrupt device.

Recently, liquid crystal display devices are also required to be lighter and thinner in accordance with lighter and thinner personal computers and TVs, and according to such demands, liquid crystal displays (LCD) instead of cathode ray tubes (CRT) are required. Flat panel displays are constantly being developed.

A liquid crystal display device applies an electric field to a liquid crystal material having an anisotropic dielectric constant injected between two substrates, and adjusts the intensity of the electric field to adjust the amount of light transmitted from an external light source (backlight) to the substrate. It is a display device which obtains a desired image signal.

Such a liquid crystal display device is typical among portable flat panel displays, and among them, a TFT-LCD using a thin film transistor (TFT) as a switching element is mainly used.

In general, a liquid crystal display device includes a liquid crystal panel composed of liquid crystals injected between upper and lower substrates and upper and lower substrates, a driving circuit for driving the liquid crystal panel, and a backlight for providing white light to the liquid crystal. Such a liquid crystal display device may be divided into two methods, an R, G, and B color filter driving method and a color field sequential driving method, according to a method of displaying a color image.

The liquid crystal display of the color filter driving method is a structure in which one pixel is divided into R, G, and B subpixels, and R, G, and B color filters are arranged in each of the R, G, and B subpixels. (Light) is transmitted to the R, G, and B color filters through the liquid crystal to display the color shape.

In addition, the liquid crystal display device of the color field sequential driving method turns on independent light sources of R, G, and B colors periodically, and applies a color signal corresponding to each pixel in synchronism with the lighting cycle to achieve full color. Get a burn. That is, the color field sequential driving type liquid crystal display has a structure in which R, G, and B backlights are arranged in one pixel not divided into R, G, and B subpixels, and R, G, and B backlights are disposed in one pixel. By sequentially displaying the R, G, and B three primary colors of light sequentially through the liquid crystal, a color shape using the afterimage effect of the eyes is displayed.

Therefore, since the color field sequential driving method requires only 1/3 of the pixels while maintaining the same resolution as the color filter method, it is possible to achieve high integration and to realize the same color reproducibility and high-speed moving picture as the color TV.

Typically, the interrupt signal from the interrupt device comes from the interface module to indicate that the interface module is ready to convey information. When the interrupt device is ready to accept the interrupt, it issues an interrupt detection signal. Then, the interface gives the address indicating the start position of the service program, stops the program in progress and executes the service program for the interface module. When this program ends, run the original program again.

1 is a block diagram schematically illustrating a liquid crystal display according to the related art.

Referring to FIG. 1, a liquid crystal display (LCD) includes a liquid crystal display system unit 100, a backlight driver 110, a backlight unit 120, a data driver 130, a scan driver 140, and a liquid crystal display. Has a panel 150.

The liquid crystal display system unit 100 internally includes a power supply unit, a processor, a data converter, a memory unit, and a buffer unit.

In detail, the power supply unit transmits a predetermined power supply voltage from each of the internal circuits of the liquid crystal display system unit 100 to operate the respective internal circuits.

The processor generates and processes a signal and a write command signal, a read command signal, a timing control signal, and the like, which are control signals for controlling predetermined signal information of respective internal circuits of the liquid crystal display system unit 100.

In addition, the data converter is a circuit unit operated by a control signal of the control unit, the image data input from the data converter is converted into red (R), green (G) and blue (B) data which is a digital signal to the memory Is delivered to wealth.

The memory unit may store the red (R), green (G), and blue (B) data according to a write command signal of the processor. That is, red (R), green (G) and blue (B) data stored in the memory unit are transferred to the buffer unit according to a read command signal of the processor.

The buffer unit may input the red (R), green (G) and blue (B) data transferred from the memory unit in a serial data format to a data driver. However, since the buffer unit is not necessarily required, the buffer unit may be transferred directly from the memory unit to the data driver 130.

In addition, the backlight driving apparatus 110 receives a control signal of the liquid crystal display system unit 100, generates a driving signal to drive the backlight unit 120, and transmits the driving signal to the backlight unit 120.

In addition, since the backlight unit 120 is a display device but does not have a self-luminous source, detailed devices for uniformly illuminating the LCD are mounted on the rear surface of the liquid crystal display panel 150. That is, the backlight unit 120 The detailed apparatuses include a lamp, a lamp housing, a light guide plate, a reflective sheet, a diffusion sheet, a prism sheet, a protective sheet, and a mold frame, and the detailed apparatuses provide a light source of the liquid crystal display panel 150.

In addition, the data driver 130 receives a plurality of data lines of the liquid crystal display panel 150 from the liquid crystal display system unit 100 according to a timing control signal of the liquid crystal display system unit 100. The red (R), green (G) and blue (B) data.

In addition, the scan driver 140 may generate a scan signal according to a timing control signal of the liquid crystal display system unit 100 to generate a scan signal in the plurality of scan lines of the liquid crystal display panel 150. The red (R), green (G) and blue (B) data received from 100 are applied.

That is, the scan signal controls the thin film transistor on / off operation of the liquid crystal display panel 150 so that the red (R), green (G), and blue (B) data is stored in the liquid crystal display panel 150. Control to be applied to the liquid crystal.

 In addition, the liquid crystal display panel 150 includes a liquid crystal that is a display element, and the liquid crystal is a passive display element that does not emit light by itself. That is, the liquid crystal display panel 150 receives the light source transmitted by the backlight unit 120 and emits light. The liquid crystal display panel 150 includes a plurality of pixels arranged in rows and columns; And a plurality of scan lines for selecting the plurality of pixels and a plurality of data lines insulated from and intersecting the plurality of scan lines and transferring the red (R), green (G), and blue (B) data.

Each pixel includes a thin film transistor having a gate electrode and a source electrode connected to a scan line and a data line, and a pixel capacitor and a storage capacitor connected to a drain electrode of the thin film transistor.

Here, the pixel capacitor is a circuit element representing a liquid crystal, and the storage capacitor is a passive element for maintaining the red (R), green (G), and blue (B) data applied to the pixel capacitor for a predetermined period.

Problems related to the conventional liquid crystal display device related to the present invention and solved by the present invention are as follows.

The liquid crystal display has a problem in that necessary information is lost because it cannot capture, store, or output video data or content data.

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid crystal display device having an interrupt device for capturing moving picture data or content data at a desired moment.

The present invention for achieving the above object, an image input unit for receiving image data from the outside; A hard icon key for generating an input signal; An interrupt processor for generating an interrupt signal for controlling the image data according to an input signal of the hard icon key; A frame memory for temporarily storing still image data captured from the image data when receiving the interrupt signal, and temporarily storing the image data if the interrupt signal is not received; A central processor for generating a central processing signal to control image data or still image data of the frame memory; A liquid crystal display panel for receiving and displaying image data or still image data transferred from the frame memory according to the control of the central processing signal; And a print screen memory configured to temporarily store still image data captured from the image data when the interrupt signal is received, and transfer the temporarily stored still image data to an output unit under control of the central processing signal. Provides an interrupt device.

Hereinafter, described in detail with reference to the accompanying drawings of the present invention.

2 is a block diagram schematically illustrating an interrupt apparatus of the liquid crystal display according to the exemplary embodiment of the present invention.

Referring to FIG. 2, the interrupt device 200 of the liquid crystal display device may include an image input unit 210, an interrupt processor 220, a frame memory 230, a central processor 240, a driver 250, and a liquid crystal display panel 260. ) And a print screen memory 270.

First, the image input unit 210 is a circuit unit that receives a video and a content service in real time from a camera and a wireless antenna mounted outside the interrupt device 200. That is, the image input unit 200 receives video data transmitted from the camera and content data delivered from the wireless antenna.

Here, the video data and the content data are collectively called video data.

Next, the interrupt processor 220 is mounted on the exterior of the liquid crystal display panel 260 and includes a hard icon key. In addition, the interrupt processor 220 controls the image data according to the on / off of the hard icon key. That is, when the hard icon key is turned on, the interrupt processor 220 generates an interrupt signal to execute an interrupt operation for capturing the image data instantaneously. When the hard icon key is turned off, the interrupt handler 220 does not generate the interrupt signal and does not execute the interrupt operation.

Next, the frame memory 230 receives the interrupt signal generated from the interrupt processor 220, and temporarily stores still image data generated by executing an interrupt operation occurring in the interrupt processor 220. In addition, if the interrupt signal generated from the interrupt processor 220 is not transmitted, the frame memory 230 does not execute an interrupt operation generated by the interrupt processor 220, and thus the image received from the image input unit 210. Temporarily save the data.

Here, the still image data is data captured from the image data and is generated by an interrupt operation of the interrupt processor 220.

Next, the central processor 240 generates a central processing signal to control input / output of the image data or still image data temporarily stored in the frame memory 230.

Next, the driver 250 receives the image data or still image data stored in the frame memory 230, amplifies the image data or still image data, and transmits the image data or still image data to the liquid crystal display panel 260.

However, the driver 250 is not necessarily present in the interrupt apparatus 200, and the image data or still image data may be directly transmitted from the frame memory 230 to the liquid crystal display panel 260.

Next, the liquid crystal display panel 260 receives and displays the image data or the still image data transmitted from the frame memory 230 according to the control of the central processing signal of the CPU 240.

Next, the print screen memory 270 receives the interrupt signal generated from the interrupt processor 220 and temporarily stores still image data captured from the image data of the image input unit 210. In addition, the print screen memory 270 stores the temporarily stored still image data in the internal memory 280 built in the interrupt device 200 in response to the central processing signal, or an external memory that is an external device. 290). Subsequently, upon receiving the central processing signal, the print screen memory 270 transfers the temporarily stored still image data to an output unit and transfers the printed image to the printer 300 which is the external device for printing.

Here, the output unit is formed of at least one of a USB port or a wireless transmission unit, and the external memory 290 is formed of at least one of a USB flash memory stick, a T-flash memory card, an RS-MMC memory card, or a MiniSD memory card.

3 is a block diagram schematically illustrating an interrupt apparatus of a liquid crystal display according to an exemplary embodiment of the present invention.

Referring to FIG. 3, the interrupt device 200 is mounted outside the liquid crystal display panel 260, and the interrupt processor 220 of the interrupt device includes a hard icon key for generating an interrupt signal.

That is, according to the interrupt signal generated when the hard icon key 330 is turned on, the liquid crystal display device receives video data or content input in real time from the camera 310 or the wireless antenna 320 mounted on the liquid crystal display device. Capture the data and generate still image data.

Accordingly, the still image data is stored or printed through the internal memory 280 embedded in the liquid crystal display, the external memory 290 connected to the outside, or the printer 300.

Subsequently, when the interrupt signal is not generated, the liquid crystal display panel 260 displays moving image data or content data input in real time instead of the still image data under the control of a central processor embedded in the liquid crystal display.

Here, after the hard icon key 330 is turned on, the hard icon key 300 is automatically turned off. In other words, the liquid crystal display panel 260 captures still image data from moving image data or content data according to whether the interrupt signal is received. In addition, when the interrupt signal is automatically extinguished, the liquid crystal display panel 260 feeds back the moving image data or the content data and displays the same.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

According to the present invention described above, the liquid crystal display device captures video data or content data at the moment desired by the user, stores them in an external device, or outputs them to a printer, thereby increasing the utilization of the liquid crystal display device and improving the merchandise.

Claims (5)

An image input unit for receiving image data from the outside; A hard icon key for generating an input signal; An interrupt processor for generating an interrupt signal for controlling the image data according to an input signal of the hard icon key; A frame memory for capturing and temporarily storing still image data from the image data being displayed upon receiving the interrupt signal, and temporarily storing the image data if the interrupt signal is not received; A central processor for generating a central processing signal to control image data or still image data of the frame memory; A liquid crystal display panel for receiving and displaying image data or still image data transferred from the frame memory according to the control of the central processing signal; And And a print screen memory configured to capture and temporarily store still image data from the image data being displayed when the interrupt signal is received, and to deliver the temporarily stored still image data to an output unit under control of the central processing signal. Interrupt device of the display device. The interrupt device of claim 1, wherein the hard icon key is mounted on an exterior of the liquid crystal display panel. The interrupt apparatus of claim 1, wherein the image input unit is one of a camera and a wireless antenna. The interrupt apparatus of claim 1, wherein the output unit is formed of at least one of a USB port and a wireless transmission unit. The method of claim 1, wherein the interrupt device, And a driving unit for amplifying the image data or the still image data transferred from the frame memory and transferring the image data or the still image data to the liquid crystal display panel.

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