KR101660730B1 - Method for displaying of image and system for displaying of image thereof - Google Patents

Abstract

An image display method and an image display system therefor according to an embodiment of the present invention are disclosed. Specifically, an image display method capable of flexibly adjusting a set value of an image screen according to a genre or a background environment of the image screen and a video display system therefor are disclosed.

Description

TECHNICAL FIELD [0001] The present invention relates to an image display method and a video display system,

The present invention relates to an image display method and a video display system therefor, and more particularly, to a video display method and a video display system capable of flexibly adjusting a set value of a screen or audio set at the time of outputting a video signal according to a genre or background environment of a video screen And a video display system according to the method.

HDMI (High Definition Multimedia Interface) is a standard for performing data transmission and reception by connecting devices supporting this through a single cable. According to the HDMI communication standard, high-resolution video and multi-channel audio data is transmitted and received without compression through a digital interface.

Since HDMI transmits and receives data without compression, it is not necessary to encode and then decode the transmitted signal. Accordingly, the image quality of the image screen, which may occur in the encoding and decoding processes, is not degraded, and is widely used in a communication system for transmitting and receiving image data and the like.

HDMI is a digital interface standard, and is mainly applied to a DVD player (DVD-Player), a high definition television (HDTV), and a digital set top box.

1 is a block diagram illustrating a general HDMI communication system.

Referring to FIG. 1, the HDMI communication system 100 includes an HDMI source block 110 and an HDMI sink block 120.

The HDMI source block 110 may be a DVD player, a digital TV receiver, or the like. The HDMI source block 110 transmits audio and video data generated internally or externally or externally input or internally generated audio and video data through the HDMI cable 130 in one direction.

The HDMI sink block 120 receives audio and video data transmitted in one direction from the HDMI source block 110 connected via the cable 130 by communication according to the HDMI standard and displays it as a video image The audio signal is reproduced.

In such a communication system using HDMI, a display screen for displaying audio and video data transmitted from the HDMI source block 110 and a specific setting value of a voice signal must be manually set by a user.

Also, once the setting value is set, the user keeps the previous setting value unless the user subsequently adjusts or changes the value.

Thus, even if the previous setting does not fit the currently displayed audio and video data, the previous setting remains until the user is reset. Further, when the previous setting value is not suitable for the currently displayed audio and video data, there is a disadvantage that the user or the like must individually change the previous setting value by operating the communication system 100 individually.

The present invention relates to an image display method and an image display system therefor, and more particularly, to an image display method capable of flexibly adjusting a set value of a screen or audio set at the time of outputting a video signal for each frame, System.

It is another object of the present invention to provide an image display method capable of displaying an optimized image screen in consideration of a genre or a background environment of an image screen and reproducing a sound signal, and a video display system therefor.

According to another aspect of the present invention, there is provided an image display method including: receiving HDMI packet data including image state information for each frame of a video signal; Adjusting a set value of the video signal for each frame in accordance with the video state information; And displaying the video signal by applying the adjusted set value.

The video state information may include at least one of a video mode, a voice mode, and an aspect ratio set at the time of outputting the video signal, and may include a setting value optimized according to a genre or a background environment of a screen corresponding to the video signal .

In addition, the video status information may be included in the vertical blank interval in the HDMI packet data.

In addition, the image state information may be included in a data island section in the vertical blank section.

According to another aspect of the present invention, there is provided an image display method including storing the image state information in a storage unit; And generating the HDMI packet so that the stored video state information is included in the HDMI packet data.

In addition, the video status information may be provided from the HDMI packet provider providing the video signal.

An image display system according to an embodiment of the present invention includes a source device and a sink device, and in an image display system for transmitting and receiving data using HDMI (HDMI) communication, An HDMI sink interface unit receiving HDMI packet data including information; A microcomputer for adjusting the set value of the video signal according to the video status information for each frame and controlling the video signal to be displayed by applying the adjusted set value; And a display unit for displaying the video signal.

The microcomputer may further include a setting value adjusting unit for extracting the video status information from the HDMI packet data and adjusting the setting value using the extracted video status information.

The source apparatus may further include: a processor for generating the HDMI packet data including the video status information; And an HDMI source interface unit for transmitting the HDMI packet data to the HDMI sink interface unit.

The video display method and the video display system according to an embodiment of the present invention can adjust the setting value of the screen or audio set at the time of outputting the video signal flexibly by every frame by including the video status information in the HDMI packet data have. Accordingly, the optimized image screen can be displayed in consideration of the genre or background environment of the screen corresponding to the video signal.

In addition, the image display method and the image display system according to an embodiment of the present invention can flexibly adjust the set values of a screen or audio set at the time of outputting a video signal according to each frame, The sound quality of the signal can be improved.

1 is a block diagram illustrating a general HDMI communication system.
2 is a block diagram illustrating an image display system according to an embodiment of the present invention using HDMI communication.
3 is a flowchart illustrating an image display method according to an embodiment of the present invention.
4 is a diagram illustrating HDMI packet data used in an image display method and an image display system according to an embodiment of the present invention.
5 is a diagram illustrating video status information included in the HDMI packet data of FIG.
6 is a diagram showing frame data that are continuously input and displayed.
7 is a diagram showing image mode information that varies depending on a genre or a background environment.
8 is a diagram showing voice mode information that varies depending on a genre or a background environment.
FIG. 9 is a diagram showing an aspect ratio depending on a genre or background environment.

The objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

2 is a block diagram illustrating an image display system according to an embodiment of the present invention using HDMI communication.

Referring to FIG. 2, an image display system 200 according to an exemplary embodiment of the present invention includes a source device 210 and a sink device 250. The source device 210 and the sink device 250 are physically connected through a connection device 290 such as a single cable line.

The source apparatus 210 includes a processor 220 and an HDMI source interface unit 230. The sink apparatus 250 includes an HDMI sink interface unit 260, (micom) 250 and a display unit 280. [

The source device 210 converts an audio or video signal into an HDMI packet data format and provides it to the sink device 250 so that the transmitted audio or video signal can be displayed through the sink device 250. Here, an audio or video signal may be generated internally in the source device 210. The audio and video signals may also be externally input. Here, the audio and video signals may be referred to as video signals. That is, the processor 220 converts the video signal generated internally or externally according to the HDMI communication standard and transmits the video signal to the external sink device 120.

The source device 210 may be a set top box (STB), a digital TV receiver, a personal computer (PC), a video game system, a digital video disc (DVD) A home theater system (HTS), a video cassette recorder (VCR), or the like.

Specifically, the processor 220 generates HDMI packet data including video status information. Here, the HDMI packet data is generated by using and converting an audio or video signal input into the processor 220 internally or externally. Here, the HDMI packet data means a data stream conforming to the HDMI communication standard.

In addition, the processor 220 generates HDMI packet data such that the video status information is included for each HDMI packet data forming one frame.

Here, the video status information is set upon outputting the video signal to be displayed. The video status information refers to the status information of the screen corresponding to the video signal.

Specifically, the video status information includes at least one of a video mode, a voice mode, and a screen ratio set at the time of outputting a video signal, and includes a setting value optimized according to the genre or background environment of the screen corresponding to the video signal do. That is, the video status information may include video mode and aspect ratio information related to a video corresponding to a video signal, and may include voice mode information as information related to audio corresponding to the video signal.

Since one frame (or one frame of data) is formed to form an image screen to be displayed, video status information corresponding to one frame is included in each HDMI packet data forming one frame.

Specifically, the video mode information is information indicating a genre or a specific background environment of a video screen such as a movie, a drama, a sports program, a daytime, a nighttime season (spring, summer, autumn, winter), indoor or outdoor. In addition, the image mode information may include detailed setting values related to the image mode, and the detailed setting values include values such as contrast, brightness, color, tint, and sharpness.

The voice mode information is information indicating a genre of a specific video screen such as a standard, a game, a music (rock, jazz, classical, or ballad), a war or a sport, or a specific audio related genre. Also, the voice mode information may include specific setting values related to the voice mode, and the detailed setting values include values such as bass, treble, or balance.

The aspect ratio information indicates the ratio of the screen to the displayed screen. The aspect ratio information may be any one of 16: 9, 14: 9, 4: 3, or 3: 2.

The video mode, audio mode, and aspect ratio information described above will be described in detail below with reference to Figs. 5 to 9.

The video status information may be provided from an HDMI packet provider that provides video signals (audio and video data) capable of generating HDMI packet data.

For example, when the source device 210 is a set top box (STB), a broadcasting station or satellite transmits audio and video data, which are video signals, to the source device 210, Converts and converts audio and video data transmitted from broadcast or satellite according to the HDMI communication standard to generate and transmit HDMI packet data. In this case, the HDMI packet provider may be a broadcasting station or the like.

Further, when the source apparatus 210 is a digital video disk (DVD) apparatus, the manufacturer or manufacturer of a digital video disc (DVD) that manufactures a digital video disc (DVD) can be an HDMI packet provider.

In addition, the processor 220 may store the video status information provided by the HDMI packet provider in an internal storage unit (not shown), and the stored video status information is used to generate the HDMI packet data.

The sink device 250 receives the HDMI packet data transmitted by communication according to the HDMI standard, and displays an image screen according to the HDMI packet data. The audio signal according to the HDMI packet data can be reproduced through a speaker unit (not shown) provided internally. Here, the HDMI packet data is transmitted through the connection device 290.

The HDMI sink interface unit 260 is responsible for data transmission / reception between the source device 210 and the sink device 250. Specifically, the HDMI sink interface 260 receives the HDMI packet data including the video status information, and transmits the HDMI packet data to the microcomputer 270.

The microcomputer 270 adjusts the set value set at the time of outputting the video signal every one frame in accordance with the video status information, and controls the video screen having the adjusted set value to be displayed.

The microcomputer 270 may further include a setting value adjuster 272 internally. The setting value adjuster 272 extracts the video status information from the received HDMI packet data and adjusts a setting value for reproducing the video screen and the audio signal using the extracted video status information. Here, the set value may be the detailed setting values of the video mode information, the voice mode information, and the aspect ratio information.

Here, the video status information is included in a vertical blank period in the HDMI packet data forming one frame. Specifically, the image state information may be included in a data island period in a vertical blanking period. The location of the video status information will be described in detail with reference to Fig. 4 below.

3 is a flowchart illustrating an image display method according to an embodiment of the present invention.

Referring to FIG. 3, an image display method according to an exemplary embodiment of the present invention receives HDMI packet data including video status information of a video signal to be displayed in operation 310. Step 310 may be performed in the HDMI sink interface unit 260 described above. HDMI packet data and video status information will be described with reference to Figs. 4 and 5 below.

4 is a diagram illustrating HDMI packet data used in an image display method and an image display system according to an embodiment of the present invention.

5 is a diagram illustrating video status information included in the HDMI packet data of FIG.

Referring to FIG. 4, HDMI packet data having a data stream format is continuously generated to form one frame. FIG. 4 shows one frame of HDMI packet data. In addition, FIG. 4 shows an example in which the size of the displayed image is 720 * 480. That is, there are 480 data lines 412 in the vertical direction and 720 data lines 410 in the horizontal direction.

The HDMI packet data is transmitted in synchronization with a horizontal synchronization signal (HSYNC) and a vertical synchronization signal (VSYNC). In addition, in order to form one frame, in addition to pure video data for generating an image screen, a horizontal blank region 420 in which a signal including various control signals, audio information, And a vertical blank region 422 are present. Pure video data is arranged in a portion indicated by 'Active Video'.

The horizontal blank region 420 and the vertical blank region 422 include a control period and a data island period.

Here, the pure video data is arranged in a data period 450, and various control signals for reproducing the video screen are arranged in a control period 440. The audio information and the various additional information are arranged in a data island period 430.

Here, the image state information is included in the vertical blank area 422. [ In particular, the video state information may be included in the data island period 430 in the vertical blank area 422. [ The data island interval 430 has an extra storage space in which the data is not stored, compared to the data interval 450 or the control interval 440. Accordingly, when the video state information is included in the data island period 430, it is not necessary to additionally generate and arrange the packet data.

5, video mode information 510, a voice mode 520, and an aspect ratio information 530 are included in a predetermined area of the data island section 430. FIG. FIG. 5 shows an example in which the image state information is arranged in the end area of the data island section 430. FIG.

The set values of the screen and audio set at the time of outputting the video signal in accordance with the video condition information are adjusted for each frame (step 320). Step 320 may be performed in the microcomputer 270 described above. Specifically, step 320 may be performed in the setting value adjuster 272. [

6 is a diagram showing frame data that are continuously input and displayed.

Referring to FIG. 6, frame data is continuously generated and transmitted. 6, Frame-N frame data of 610 lines starts to be generated and transmitted first, and frame data of 620 lines, 630 lines, and 640 lines are successively generated and transmitted sequentially. The frame data transmitted during the time from t1 to t2 have the picture mode, the voice mode, and the aspect ratio set to the movie, the classical, and the 16: 9, respectively. In addition, the frame data transmitted during the time t3 to t4 have the picture mode, the voice mode, and the aspect ratio have the detailed settings of summer, sports, and 16: 9, respectively.

Here, the video status information includes a screen setting value optimized according to the genre or background environment of the video screen to be displayed. The optimized screen setting values will be described in detail with reference to Figs. 7 to 9 below.

7 is a diagram showing image mode information that varies depending on a genre or a background environment.

8 is a diagram showing voice mode information that varies depending on a genre or a background environment.

FIG. 9 is a diagram showing an aspect ratio depending on a genre or background environment.

Referring to FIG. 7, the image mode information has different optimal setting values depending on the genre or background environment of the image screen to be displayed corresponding to the image signal. For example, if the genre of a video screen is a movie, it has an optimal setting value of 80, a brightness of 75, a color of 50, a tint of 0, and a sharpness of 50. The detailed setting values shown in FIG. 7 are exemplified when the range of the set values that the image display system can represent is 0 to 100.

Referring to FIG. 8, the voice mode information has different optimal setting values depending on the genre or background environment of the video screen and the reproduced voice signal to be displayed. For example, if the genre is sports, the bass has a value of 60, the treble is 90, and balance has a value of zero. The detailed setting values shown in FIG. 8 are exemplified when the range of the set values that can be expressed by the image display system is changed from 0 to 100.

Referring to FIG. 9, the aspect ratio information has optimal detailed setting values that are different from each other according to the genre or background environment of the image face to be displayed corresponding to the image signal. For example, if the genre of a video screen to be displayed is a movie, an aspect ratio value of 16: 9 is an optimum setting value, and in case of sports, an aspect ratio value of 14: 9 is an optimum setting value. If the background environment of the image screen to be displayed is the indoor, the 4: 3 aspect ratio value becomes the optimum setting value.

For video mode, voice mode, and aspect ratio information, the optimal detailed settings may be provided by the HDMI packet provider as described above.

In addition, the image display method according to an embodiment of the present invention further includes a step of storing the video status information before step 310 and a step of generating HDMI packet data such that the stored video status is included in the HDMI packet data can do. In addition, the video state information storage step and the HDMI packet data generation step may be performed in the processor 220.

The video display method according to an embodiment of the present invention described with reference to FIG. 3 is the same as the video display system according to the embodiment of FIG. 2, and thus its detailed description will be omitted.

The terminology used in the present invention is defined in consideration of the function of the present invention. It may vary depending on the intention or custom of the technician working in the field, .

The present invention is not limited to the above-described embodiments and various changes and modifications may be made by those skilled in the art, which is included in the spirit and scope of the present invention as defined in the appended claims.

110: HDMI source block
120: HDMI Sink Block
210: source device
220: processor
230: HDMI source interface
250: sink device
260: HDMI sink interface
270: Micom (micom)
272: setting value adjustment unit
280: display unit

Claims (15)

Receiving HDMI packet data including video status information for each frame of a video signal;
Adjusting a set value of the video signal for each frame in accordance with the video state information; And
And displaying the video signal by applying the adjusted set value. Claim 2 has been abandoned due to the setting registration fee. 2. The method of claim 1,
A video mode, an audio mode, and an aspect ratio, the video mode being set upon outputting the video signal,
And a setting value optimized according to a genre or background environment of a screen corresponding to the video signal. Claim 3 has been abandoned due to the setting registration fee. 2. The method of claim 1,
Wherein the data is included in a vertical blank interval in the HDMI packet data. Claim 4 has been abandoned due to the setting registration fee. 4. The method of claim 3,
Wherein the vertical blanking interval is included in a data island interval in the vertical blanking interval. Claim 5 has been abandoned due to the setting registration fee. The method according to claim 1,
Storing the image state information in a storage unit; And
And generating the HDMI packet so that the stored video state information is included in the HDMI packet data. Claim 6 has been abandoned due to the setting registration fee. 2. The method of claim 1,
And providing the video signal from the HDMI packet provider. 1. A video display system including a source device and a sink device, and transmitting and receiving data using HDMI (HDMI) communication,
The sink device
An HDMI sink interface unit receiving HDMI packet data including video status information for each frame of a video signal;
A microcomputer for adjusting the set value of the video signal according to the video status information for each frame and controlling the video signal to be displayed by applying the adjusted set value; And
And a display unit for displaying the image signal. 8. The method of claim 7,
A video mode, an audio mode, and an aspect ratio, the video mode being set upon outputting the video signal,
And a screen setting value optimized according to a genre or background environment of a screen corresponding to the video signal. The apparatus of claim 7, wherein the microcomputer
And a setting value adjuster for extracting the video status information from the HDMI packet data and adjusting the setting value using the extracted video status information. 8. The method of claim 7,
Is included in a vertical blank interval in the HDMI packet data forming the frame. 11. The method of claim 10,
Wherein the vertical blanking interval is included in the data island interval in the vertical blanking interval. 8. The apparatus of claim 7, wherein the source device
A processor for generating the HDMI packet data including the video status information; And
And an HDMI source interface unit for transmitting the HDMI packet data to the HDMI sink interface unit. 13. The system of claim 12, wherein the processor
And generates the HDMI packet data by including the video status information in a vertical blank interval in the HDMI packet data forming the frame. 13. The system of claim 12, wherein the processor
Further comprising a storage unit for storing image state information corresponding to the image screen to be displayed. 13. The method of claim 12,
A video mode, an audio mode, and an aspect ratio, the video mode being set upon outputting the video signal,
And a screen setting value optimized according to a genre or background environment of a screen corresponding to the video signal.

Images