KR100540249B1 - Handset for displaying vidio in plural number of lcd - Google Patents

Abstract

The present invention is a terminal for displaying a processed image on a plurality of LCDs, and in a dual LCD terminal, a preview function is implemented according to a user's selection not only on the main LCD but also on the sub LCD side through the switching function. It is an object of the present invention to provide a terminal for displaying a processed image on a plurality of LCDs, which provides convenience of not rotating the digital camera and the hinge portion.

In order to achieve the above object, the present invention receives a plurality of chip select signals, converts the format of the image data according to the control of the plurality of chip select signals, and then switches the paths of the output data lines of the converted data. Video DSP; A main LCD which displays a video that can be recognized by a user when data is input from the video DSP; A sub LCD for displaying a video that can be recognized by a user when data is input from the video DSP; An MSM that receives data from the image DSP and generates the plurality of chip select signals; And a camera configured to acquire an external image, convert the image into image data, and output the image data to the image DSP.

DSP, MSM, Camera, LCD

Description

Terminal for displaying a processed image on a plurality of LCDs {HANDSET FOR DISPLAYING VIDIO IN PLURAL NUMBER OF LCD}             

1 is a block diagram showing an image DSP mounted to a terminal for displaying a processed image on a plurality of LCDs according to an embodiment of the present invention;

2 is a block diagram illustrating a terminal displaying a processed image on a plurality of LCDs according to an embodiment of the present invention;

Explanation of symbols on the main parts of the drawings

300: Image DSP 311: Main LCD

312: sub LCD 320: MSM

330: Camera

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal for displaying a processed image on a plurality of LCDs. In particular, the present invention is applied to a dual LCD portable terminal equipped with a camera, and previews a user's desired direction in a main LCD or a sub LCD, which is a display device. The present invention relates to a terminal for displaying a processed image on a plurality of LCDs.

In the current portable terminal, there is a growing tendency to mount a digital camera. Accordingly, the preview function is implemented in the terminal, and in the case of a single LCD terminal, the preview is added in both directions by adding a device to rotate the hinge portion.

In the case of a dual LCD terminal, only the main LCD is used for previewing, so even though two LCDs are installed, the preview cannot be performed in a desired direction before the rotation function is added as in the case of a single LCD terminal. There is this.

The present invention has been made to solve the above problems, in the dual LCD terminal, the digital camera by implementing the preview function according to the user's selection not only the main LCD but also the sub LCD side only by the same number of data lines through the switching function, And a terminal for displaying a processed image on a plurality of LCDs, which provides convenience of not having to rotate the hinge portion.

In order to achieve the above object, a terminal for displaying a processed image of the present invention on a plurality of LCDs receives a plurality of chip select signals, converts the format of the image data according to the control of the plurality of chip select signals, and then converts them. An image DSP for switching a path of an output data line of the data; A main LCD which displays a video that can be recognized by a user when data is input from the video DSP; A sub LCD for displaying a video that can be recognized by a user when data is input from the video DSP; An MSM that receives data from the image DSP and generates the plurality of chip select signals; And a camera configured to acquire an external image, convert the image into image data, and output the image data to the image DSP.

Hereinafter, the most preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily implement the technical idea of the present invention. .

First, FIG. 1 is a block diagram illustrating an image DSP 300 mounted on a terminal displaying a processed image on a plurality of LCDs according to an embodiment of the present invention.

The YUV data processor 210 outputs, to the USB core 230 described below, first data obtained by adjusting brightness of YUV data (pre-compression data for a subject), which is the image data input from the camera 330 described later. The second data of which the size of the first data is adjusted is output to the USB core 230 to be described later and the image parallel processor 220 to be described later. In this case, in order to perform the above-described operation of the YUV data processing unit 210, the CMOS enhancer 211, the R2B 212, and the YUV2RGB resizing unit 213 in the YUV data processing unit 210. Will be fitted.

Also, the image parallel processor 220 receives the second data from the YUV data processor 210, generates image output data through the second data, and outputs the image output data to the MSM and LCD (not shown). And outputs in parallel to the USB core 230 to be described later. In this case, in order to perform the above-described operation of the image parallel processing unit 220, a buffer 221, an output word unit 222, a thumb nail memory 223, and a state are provided in the image parallel processing unit 220. The register 224, the bus control unit 225, the command decoder 226, the memory 227, the RISC memory control unit 228, and the master unit 229 are mounted. In this case, the thumb nail refers to a reduced still image, which is reduced by the YUV data processor 210.

The USB core 230 receives the image output data from the image parallel processor 220 and converts the image output data in units of blocks by referring to the second data from the YUV data processor 210. The block unit data is compressed and converted with reference to the first data from the YUV data processor 210, and serves to exchange compressed data with an external device.

Referring to the operation of the video DSP 300 of the present invention described above is as follows.

According to the image DSP 300, a digital camera capable of processing 33 frames per second by employing a 330,000 pixel CMOS lens can be mounted and controlled in a portable terminal. In addition, the image DSP 300 may display a video screen on a screen of an external device through USB data communication with an external device as well as a preview / snap shot function through an LCD (not shown). do.

For the above-described video processing operation, the YUV data (pre-compression data for the subject), which is the image data input from the camera 330, is corrected in gray scale through gamma control, and a CMOS enhancer. The brightness and the like are adjusted by 211 and supplied to the USB core 230. Thereafter, data is compressed by the USB core 230, and the data is transmitted to an external device through the USB line. Thereafter, the data received from the USB core 230 is decompressed and displayed on the screen by a compression engine mounted in an external device, all of which are performed in real time.

2 is a block diagram showing a terminal for displaying a processed image according to an embodiment of the present invention on a plurality of LCDs. LCD 311, sub-LCD 312, MSM 320 and camera 330.

The image DSP 300 receives the plurality of chip select signals CS1 and CS2, converts the format of the image data under the control of the plurality of chip select signals CS1 and CS2, and then outputs the converted data. It serves to switch the path of data lines. Here, in the image DSP 300, the first chip select signal CS1 of the plurality of chip select signals CS1 and CS2 is the second logic step High, and the second chip select signal CS2 is the second. In the case of the first logic step Low, the data line is connected to the main LCD 311 to be described later, and the first chip select signal CS1 of the plurality of chip select signals CS1 and CS2 is the first logic step. (Low) and when the second chip select signal CS2 is the second logic step High, the data line may be connected to the sub LCD 312 described later.

In addition, when the main LCD 311 receives data from the image DSP 300, the main LCD 311 displays a video that a user can recognize. The data received by the main LCD 311 may be 16-bit format data.

On the other hand, the sub LCD 312, when receiving data from the image DSP 300 serves to display as an image that can be recognized by the user. Here, the data received by the sub LCD 312 may be 8-bit format data.

In addition, the MSM 320 receives data from the image DSP 300 and generates the plurality of chip select signals CS1 and CS2.

Meanwhile, the camera 330 acquires an external image, converts the image into image data, and outputs the image data to the image DSP 300.

The operation of the terminal for displaying the above-described processed image of the present invention on a plurality of LCDs will be described below.

First, when the user wants to implement the preview function through the main LCD 311, the MSM 320 generates a first chip selection signal among the plurality of chip selection signals CS1 and CS2 by the user's key input signal. (CS1) is switched to the second logic step High, and the second chip select signal CS2 is switched to the first logic step Low. Thereafter, the image DSP 300 activates a path to the main LCD 311 and displays the data converted into the 16-bit data output format through the main LCD 311.

On the other hand, when the user wants to implement the preview function through the sub LCD 312, the MSM 320 by the user's key input signal, etc., the first chip selection signal of the plurality of chip selection signals CS1, CS2 Switch CS1 to the first logic step Low, and switch the second chip select signal CS2 to the second logic step High. Thereafter, the image DSP 300 activates a path to the main LCD 311 to display the data converted into an 8-bit data output format through the main LCD 311.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited to the drawings shown.

In the dual LCD terminal, the preview function is implemented according to the user's selection not only on the main LCD but also on the sub LCD side using the same number of data lines through a switching function, so that the digital camera and the hinge portion do not need to be rotated. There is an advantage to providing.

Claims (4)

A terminal in which a part of a data line connected to a main LCD is additionally allocated to a sub LCD, An image DSP for receiving a plurality of chip select signals, converting a format of the image data according to the control of the plurality of chip select signals, and switching an output data line of the converted data; A main LCD which displays a video that can be recognized by a user when data is input from the video DSP; A sub LCD for displaying a video that can be recognized by a user when data is input from the video DSP; An MSM that receives data from the image DSP and generates the plurality of chip select signals; And A camera for acquiring an external image and converting the image data into image data and then outputting the image data to the image DSP. Terminal for displaying the processing image on a plurality of LCD, comprising a. The method of claim 1, The image DSP connects the output data line to the main LCD when the first chip select signal of the plurality of chip select signals is a second logic step and the second chip select signal is a first logic step. Connecting the output data line to the sub LCD when the first chip select signal is a first logic step and the second chip select signal is a second logic step among the plurality of chip select signals. A terminal for displaying a processed image on a plurality of LCD, characterized in that. The method of claim 1, Data received by the main LCD is 16-bit format data. A terminal for displaying a processed image on a plurality of LCD, characterized in that. The method of claim 1, The data received by the sub LCD is 8-bit format data. A terminal for displaying a processed image on a plurality of LCD, characterized in that.

Images