WO2010039005A2 - 화질 조정 방법 및 그를 이용한 영상 표시 장치. - Google Patents
화질 조정 방법 및 그를 이용한 영상 표시 장치. Download PDFInfo
- Publication number
- WO2010039005A2 WO2010039005A2 PCT/KR2009/005652 KR2009005652W WO2010039005A2 WO 2010039005 A2 WO2010039005 A2 WO 2010039005A2 KR 2009005652 W KR2009005652 W KR 2009005652W WO 2010039005 A2 WO2010039005 A2 WO 2010039005A2
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- pattern
- image
- adjustment value
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- brightness
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
- H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
- H04N21/4854—End-user interface for client configuration for modifying image parameters, e.g. image brightness, contrast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/57—Control of contrast or brightness
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/20—Circuitry for controlling amplitude response
Definitions
- the present invention relates to a method of adjusting the image quality of an image display apparatus, and more particularly, to a method of displaying a pattern for image quality adjustment on a screen of an image display apparatus.
- a television which is a kind of video display device, receives a broadcast signal from a broadcasting station, displays an image, and outputs a voice corresponding to the broadcast signal.
- the television is connected to an external device such as a DVD player, a set-top box, a computer, and the like to display various images.
- the television receives a video signal and an audio signal from an external device and outputs a video and audio corresponding thereto.
- televisions and external devices each have a function of adjusting image quality by changing image quality information by a user's operation.
- the image quality information includes information about brightness, contrast ratio, sharpness, and color of the image signal.
- the video display device provides a user interface that can change brightness, contrast ratio, sharpness, color, etc. so that a user can change the quality of the current image.
- the present invention provides a user interface that allows a user to easily adjust the image quality of an image display apparatus, and also provides a method for allowing a user to easily adjust the image quality using a plurality of patterns and an image display apparatus using the same.
- a method for adjusting image quality may include displaying a first pattern and a second pattern; Receiving an adjustment value; And changing the state in which the first pattern is displayed according to the input adjustment value, wherein the display state of the second pattern is not changed in accordance with the adjustment value.
- a method of adjusting an image quality including: displaying a first pattern and a second pattern; And receiving an adjustment value, wherein the state in which the first pattern is displayed is changed to be the same as the display state of the second pattern as the adjustment value is changed.
- a method of adjusting an image quality including: displaying a first pattern and a second pattern; Receiving an adjustment value; And displaying an adjustment value display OSD for indicating the input adjustment value, wherein the adjustment value display OSD includes a variable area and a fixed area, wherein the variable area is variable display according to the input adjustment value.
- the second pattern includes a plurality of images, and a state in which the first pattern is displayed includes images included in the second pattern as the variable region of the adjustment value display OSD is changed in a first side direction. Is changed to be the same as the display state of the image located on the first side.
- An image display device for storing the first pattern and the second pattern;
- a user input unit which receives an adjustment value from a user;
- a signal processor configured to image and output the first pattern according to the input adjustment value;
- a display unit displaying a first pattern input from the signal processor and a second pattern stored in the memory.
- an image display device includes: an image displayed on a first area; A first pattern displayed in the second area; A second pattern displayed in the third area; An adjustment value display OSD displayed in a fourth area, wherein the adjustment value display OSD includes a variable area and a fixed area, and the variable area is variably displayed according to an input adjustment value, and has a number, a character, or an abstract degree.
- a value of an image quality element is displayed through a display, etc., but the image of the first area and the first pattern of the second area are changed according to the change of the adjustment value.
- the image quality visually shown to the user may be set to the standard image quality.
- the standardized image data is input from an external device to check whether it is set as the standardized quality or a professional does not need to check the color density, tint, etc. using a filter for a specific color, various embodiments are useful. .
- FIG. 1 is a flowchart illustrating a method of adjusting image quality according to an embodiment of the present invention.
- FIG. 2 is a diagram illustrating an embodiment of a plurality of patterns displayed on a screen of an image display device to adjust image quality.
- FIG. 3 is a block diagram illustrating a configuration of a video display device according to an embodiment of the present invention.
- FIG. 4 is a block diagram illustrating an embodiment of a configuration of the signal processor illustrated in FIG. 3.
- 5 to 12 are diagrams illustrating embodiments of a user interface (UI) provided to a user for image quality adjustment.
- UI user interface
- FIG. 13 is a diagram for describing an exemplary embodiment of a method of adjusting brightness of an image display device.
- 16 is a graph for explaining a change in brightness of a screen according to an adjustment value.
- 17 and 18 are diagrams illustrating second embodiments of display states of a first pattern for adjusting brightness.
- FIG. 19 illustrates an example of a method of adjusting contrast of an image display apparatus.
- 20 and 21 are diagrams illustrating first embodiments of a display state of a first pattern for contrast adjustment.
- 22 is a graph for explaining a change in contrast of a screen according to an adjustment value.
- 23 and 24 illustrate second embodiments of display states of a first pattern for contrast adjustment.
- FIG. 25 is a diagram for describing an exemplary embodiment of a method of adjusting color of an image display apparatus.
- 26 to 29 are diagrams illustrating embodiments of a display state of a first pattern for color concentration adjustment.
- FIG. 30 is a diagram for describing a method of adjusting a tint of an image display device.
- 31 to 34 illustrate embodiments of display states of a first pattern for tint adjustment.
- FIG. 35 is a diagram for describing an embodiment of a method of adjusting horizontal sharpness of an image display device.
- 36 is a diagram for explaining a change in sharpness of a screen according to an adjustment value.
- FIG. 37 is a diagram for describing an embodiment of a method of adjusting vertical sharpness of an image display device.
- FIG. 38 illustrates an example of a method of adjusting backlight brightness of an image display device.
- FIG. 39 is a diagram illustrating an embodiment of a user interface for receiving an external input from a user to apply a set adjustment value.
- a video display device may directly display each quality item, for example, brightness, contrast, color, tint, sharpness, or backlight. It can provide a picture quality adjustment function to control the brightness of backlight.
- each quality item for example, brightness, contrast, color, tint, sharpness, or backlight. It can provide a picture quality adjustment function to control the brightness of backlight.
- FIG. 1 is a flowchart illustrating a method of adjusting image quality according to an embodiment of the present invention.
- the image processing apparatus displays a first pattern and a second pattern in step 100.
- the image processing apparatus may include a display module for displaying an image.
- the display module may include a liquid crystal display (LCD), a plasma display panel (PDP), an electro luminescent display (ELD), and a vacuum fluorescent display (VFD). It may include a display panel of various display methods such as).
- the image processing apparatus may display an image signal input from the outside on the screen using the display module, and display a screen for image quality adjustment including the first pattern and the second pattern when image quality is adjusted. can do.
- the first and second patterns 210 and 220 may be simultaneously displayed on the display screen 200, and may be disposed adjacent to each other vertically or horizontally.
- the first and second patterns 210 and 220 may be internal patterns of the image display apparatus, that is, may be stored in a memory provided in the image display apparatus.
- the present invention is not limited thereto, and for example, at least one of the first and second patterns 210 and 220 may be input from an external pattern generator.
- the video display device receives an adjustment value for adjusting image quality from the user (step 110).
- the input adjustment value may be a value for adjusting an image quality characteristic corresponding to any one of a plurality of image quality items, and for example, brightness, which is adjustable image quality items in the image display device according to an exemplary embodiment of the present invention.
- the image display device changes the display state of the first pattern according to the input adjustment value in step 120.
- the display state of the second pattern 220 does not change according to the adjustment value, and may be displayed in a fixed state on the display screen 200.
- the first and second patterns refer to image data stored in a memory inside the image display apparatus, for example, before the image processing for display, and the state in which the pattern is displayed is displayed on the screen for image quality adjustment.
- 2 patterns 210 and 220 may be displayed to indicate a state visually recognized by the user.
- the first pattern 210 may be image-processed according to an adjustment value input by a user, so that the state displayed on the screen 200 may change as the adjustment value is changed.
- the brightness, contrast, color density, tint, sharpness, or backlight brightness of the first pattern 210 displayed on the screen may be changed.
- the change of the display state of the first pattern 210 means that the image quality of the first pattern 210 that is displayed on the screen 200 and visually recognized by the user, more specifically, to a specific image quality item to be adjusted. This may mean that the corresponding picture quality characteristic is changed.
- the first pattern 210 or the first pattern 210 displayed on the screen 200 is included according to the input adjustment value.
- the brightness of the specific area can be changed.
- the first pattern 210 displayed when the image quality is adjusted may be different.
- the brightness, contrast, color density, tint, sharpness, backlight brightness, shape, or size of the first pattern 210 displayed during image quality adjustment may be different.
- the first pattern 210 displayed when the image quality of the first item is adjusted and the first pattern 210 displayed when the image quality of the second item is adjusted have a state of image quality corresponding to the first item. May differ from one another.
- the brightness of the first pattern 210 displayed during the brightness adjustment and the first pattern 210 displayed during the contrast adjustment may be different from each other.
- the first pattern 210 displayed when the image quality of the first item is adjusted and the first pattern 210 displayed when the image quality of the second item is adjusted are the same as those of the third item among the plurality of image quality items.
- the states may be the same.
- the first pattern 210 displayed when adjusting the brightness and the first pattern 210 displayed when adjusting the contrast may have the same color displayed on the screen 200.
- the display state of the second pattern 220 is fixed without being changed according to the input adjustment value, and for this purpose, the second pattern 220 may not undergo an image processing process performed according to the input adjustment value. have. That is, the brightness, contrast, color density, tint, sharpness, or backlight brightness of the second pattern 220 displayed on the screen and visually recognized by the user may be maintained regardless of the input adjustment value.
- the second pattern 220 is a reference pattern for image quality adjustment.
- the second pattern 220 adjusts the display state of the first pattern 210 to the display state of the second pattern 220.
- the display state of the first pattern 210 changed according to the input adjustment value is made to match the display state of the second pattern 220, and the adjustment at the coincidence time point is performed.
- the image quality of the video display device can be adjusted.
- the second pattern 220 may include an image generated to have a standard image quality, and as described above, the image of the second pattern 220 may be generated according to the input adjustment value so as to be a reference for image quality adjustment. It is preferable to be fixed without change.
- the standard image quality refers to the image quality of the image display device that can display the input image signal as it is, the image display device image quality of the image source (for example, brightness, contrast, color density, Tint, sharpness and full screen brightness can be displayed as is.
- the image display device image quality of the image source for example, brightness, contrast, color density, Tint, sharpness and full screen brightness can be displayed as is.
- the second pattern 220 may be generated to have the standard image quality as described above and then stored in the memory inside the image display device, and unlike the first pattern 210 which is changed according to the adjustment value, the display state is fixed. In order to make it possible, the image may be displayed after undergoing an image processing process different from that of the first pattern 210.
- the standard image quality of the second pattern 220 may be set differently according to a manufacturer, a use region, or the like of the video display device.
- the second pattern 220 displayed when adjusting the image quality may be different.
- the brightness, contrast, color density, tint, sharpness, backlight brightness or shape of the second pattern 210 displayed when adjusting the quality may be different.
- the second pattern 220 displayed when adjusting the image quality of the first item and the second pattern 220 displayed when adjusting the image quality of the second item have a state of the image quality corresponding to the first item. May differ from one another.
- the brightness of the second pattern 220 displayed when adjusting the brightness and the second pattern 220 displayed when adjusting the contrast may be different from each other.
- the second pattern 220 displayed when adjusting the image quality of the first item and the second pattern 220 displayed when adjusting the image quality of the second item may have the image quality corresponding to the third item among the plurality of quality items.
- the states may be the same.
- the colors displayed on the screen 200 may be the same as the second pattern 220 displayed when adjusting the brightness and the second pattern 220 displayed when adjusting the contrast.
- the image display apparatus checks whether the state in which the first pattern is displayed matches the display state of the second pattern (step 130).
- the first and second patterns 210 and 220 are displayed on the display screen 200, and the display state of the first and second patterns 210 and 220 is visually displayed. It is desirable to allow the user to determine whether a match is found.
- the display states of the first and second patterns 210 and 220 coincide with each other in that the state in which the first and second patterns 210 and 220 are displayed on the screen 200 is objectively, for example, in an image quality measuring apparatus.
- the first and second patterns 210 and 220 may be displayed on the screen 200 so that the state visually recognized by the user coincides with each other.
- the first pattern 210 is matched with the second pattern 220 of standard image quality when viewed from the user's point of view, thereby providing a method of adjusting image quality adaptive to the user.
- the determination of when the display states of the first and second patterns 210 and 220 coincide may be different from each other.
- the video display device allows the user to visually determine whether the display states of the first and second patterns 210 and 220 match, and the first and second patterns 210 are displayed by the user. If it is determined that the display states of the first and second patterns 220 and 220 coincide with each other, the adjustment values may be set because the display states of the first and second patterns 210 and 220 are identical.
- the video display device displays a phrase on the screen for adjusting the image quality, which means, "Set the adjustment value so that the display state of the first pattern matches the display state of the second pattern.”
- the image display device displays the 110 and 120 steps of the first and second patterns 210 and 220 when the display states of the first and second patterns 210 and 220 do not match. Repeat until the states match.
- the image display apparatus sets the input adjustment value (step 140).
- the image display device adjusts the adjustment value to the first value input at the corresponding time point. By setting, image quality adjustment can be performed.
- the image display apparatus may include a memory 150, a signal processor 160, and a display 170.
- the memory 150 stores the first pattern 210 and the second pattern 220 as described above. Meanwhile, according to another embodiment of the present invention, any one of the first pattern 210 and the second pattern 220 may not be stored in the memory 150 but may be input from the outside.
- the memory 150 may be a Flash ROM or a nonvolatile memory.
- first pattern 210 and the second pattern 220 may be generated as image signals having different formats and stored in the memory 150.
- the first pattern 210 may encode a predetermined image.
- the video signal is compressed according to the MPEG coding scheme, and more specifically, the second pattern 220 may be an uncompressed R, G, or B video signal.
- the signal processor 160 may image and output the first pattern 210 according to the input adjustment value, and the image display device may include a user input unit (not shown) for receiving the adjustment value from the user.
- the user input unit may be a plurality of input buttons provided in the image display apparatus or an external remote controller.
- the display unit 170 displays the input first pattern 210 and the second pattern 220 on the screen 200.
- first pattern 210 and the second pattern 220 may undergo different image processing processes before being displayed on the display unit 170.
- the second pattern 220 stored in the memory 150 may be input to the display unit 170 without passing through the signal processor 160, and accordingly, the second pattern 220 may be input to the display unit 170.
- the state displayed at is not changed by the adjustment value input as described above, and the image quality of the image signal stored in the memory 150 may be displayed as it is, for example, the standard image quality.
- the first pattern 210 undergoes an image processing according to the input adjustment value and passes through the signal processing unit 160 to change the image quality, thereby changing the state displayed on the display unit 170 according to the input adjustment value.
- the second pattern 220 may not be changed by an adjustment value input by the state company displayed on the display unit 170 by bypassing the signal processor 170.
- the video display device may include a Composite Video Baseband Signal (CVBS), an S-Video, a Component, a PC-Signal, and a DVI (digital). It may include an input terminal such as Video / visual Interactive), HDMI (High-Definition Multimedia Interface).
- CVBS Composite Video Baseband Signal
- S-Video S-Video
- Component Component
- PC-Signal Component
- DVI digital
- It may include an input terminal such as Video / visual Interactive), HDMI (High-Definition Multimedia Interface).
- HDMI High-Definition Multimedia Interface
- the second pattern 220 stored in the memory 150 is directly input to the display unit 170 without undergoing a separate processing process. However, the second pattern 220 stored in the memory 150 is different from the second pattern 220 stored in the memory 150. ) May be input to the display unit 170 after a predetermined process.
- the processing performed on the second pattern 220 is performed regardless of the input adjustment value, and the second pattern 220 bypasses a block that performs image processing according to the adjustment value. Even in this case, it is preferable that the display state of the second pattern 220 does not change according to the adjustment value.
- the display unit 170 may include a display module including a display panel of various display methods such as LCD, PDP, ELD, or VFD to display the first and second patterns 210 and 220.
- a display module including a display panel of various display methods such as LCD, PDP, ELD, or VFD to display the first and second patterns 210 and 220.
- FIG. 4 is a block diagram illustrating an example of the configuration of the signal processor illustrated in FIG. 3.
- the signal processor 160 includes an image decoder 161, an image quality enhancer 162, a CSC block 163, and a gamma.
- the correction unit 164 may be included.
- the signal processor 160 converts an image signal input from the outside or an internal pattern stored in the memory 150, that is, the first pattern 210 into a signal in a format that the display unit 170 can process. It may include a plurality of signal processing blocks (161 to 164) for processing.
- the image decoder 161 receives an image signal separated by the luminance component Y and the color signal component C, and decodes the image signal. For example, the image decoder 161 receives U in the color signal C. You can output the input video signal as Y, U, V by separating, V.
- the first pattern 210 stored in the memory 150 may be an image signal compressed according to a predetermined encoding method, and the image decoder 161 may be an image signal of the compressed first pattern 210.
- the decoding may be performed by performing an inverse process of the encoding on.
- the second pattern 210 stored in the memory 150 is in an uncompressed form, for example, Y, U, V format. Or it may be composed of an image signal of the R, G, B format.
- the image quality enhancer 162 may adjust the image quality of the image to be displayed by performing operations such as color adjustment, contrast enhancement, color enhancement, and noise filtering on the input image signal.
- the image quality enhancer 162 may change the display state of the first pattern 210 according to an adjustment value input from the user.
- the display state may not change according to an input adjustment value.
- a progressive image signal of a frame buffer (not shown) and an interlacing method that stores the video signal in units of frames.
- a deinterlacer (not shown) for converting a video signal or a scaler (not shown) for converting an image signal to a vertical frequency, resolution, aspect ratio, etc., according to the standard of the display unit 170 may be included.
- the CSC block 163 may perform color space converting on the input image signal and convert the color signal into a color space output to the display unit 170.
- the YUV signal may be converted into an RGB image signal. Can be converted to
- the CSC block 163 may change the display state of the first pattern 210, and more specifically, the displayed color, according to the adjustment value input from the user.
- the display state, more specifically, the displayed color may not change according to the input adjustment value.
- the second pattern 220 may be generated as an image signal in an RGB format that can be displayed on the display unit 170 and stored in the memory 150.
- the gamma correction unit 164 may correct and output an input luminance level according to a gamma curve preset for an image signal output from the CSC block 163, for example, an RGB signal.
- the gamma correction unit 164 may change the display state of the first pattern 210 according to the adjustment value input from the user.
- the display state may not change according to the input adjustment value.
- the first pattern 210 output after being processed by the signal processor 160 including the plurality of signal processing blocks 161 to 164 and the second pattern 220 which does not pass through the signal processor 160 are output. May be input to the image synthesizing unit 171.
- the image synthesizing unit 171 synthesizes the image signal of the first pattern 210 processed by the image according to the input adjustment value and the second pattern 220 which has not undergone the image processing process according to the adjustment value.
- the first and second patterns 210 and 220 may be displayed together on the 200.
- the image synthesizing unit 171 may process the first pattern 210 and the second pattern 220 as separate layers, and the image signal of the second pattern 220 may be a memory 150. Can be entered directly.
- the configuration of the image processing apparatus as shown in FIGS. 3 and 4 is only one embodiment of the present invention, the image processing apparatus according to the present invention is not limited to the configuration as shown.
- the first pattern 210 in which the display state changes according to the input adjustment value may be a test pattern for image quality adjustment, and the second pattern 220 in which the display state does not change regardless of the input adjustment value. ) May be the first pattern 210, that is, a guide pattern that is a reference of the test pattern.
- the first pattern 210 will be referred to as a test pattern and the second pattern 220 will be referred to as a guide pattern to explain the embodiments according to the present invention.
- the hatching difference shown in the following drawings may mean that the display state of the corresponding area, for example, image quality such as brightness, color, or sharpness on one display screen is different from each other, and on one display screen.
- the areas marked with the same hatching may mean that the display states as described above are the same.
- UI user interface
- the state in which the test pattern 210 is displayed may be changed as the input adjustment value changes, more specifically.
- the adjustment value it may be changed to be the same as the display state of the guide pattern 220.
- the test pattern 210 and the guide pattern 220 may be disposed adjacent to and displayed on the display screen 200.
- the test pattern 210 and the guide pattern 220 may be displayed on the display screen 200. It can be arranged adjacent to.
- the display state of the test pattern 210 may be gradually changed to be the same as the display state of the guide pattern 220.
- the test pattern 210 and the guide pattern 220 have different display states, and as the adjustment value increases, the test pattern ( The display state of 210 may be gradually changed in the same direction as the display state of the guide pattern 220.
- the display state of the test pattern 210 may visually match the display state of the guide pattern 220.
- the display state of the test pattern 210 may be changed to be gradually different from the display state of the guide pattern 220.
- the display state of the test pattern 210 or the guide pattern 220 refers to image quality characteristics such as brightness, contrast, color density, tint, sharpness, or backlight brightness in which the pattern is displayed on the screen 200 as described above. can do.
- the display state of the test pattern 210 and the guide pattern 220 is the same as the difference between the display state of the test pattern 210 and the display state of the guide pattern 220 visually recognized by the user. It may mean that it gradually decreases, that is, the display state of the test pattern 210 may gradually change in a direction visually coincident with the display state of the guide pattern 220.
- the difference in the image quality between the displayed test pattern 210 and the guide pattern 220 is clearly visually recognized by the user, but the test pattern visually recognized by the user as the adjustment value is changed.
- the image quality difference between the 210 and the guide pattern 220 gradually decreases, when the adjustment value reaches a specific value, the quality difference between the test pattern 210 and the guide pattern 220 may not be visually recognized by the user. have.
- the brightness of a specific area included in the test pattern 210 and the guide pattern 220 or the two patterns 210 and 220 respectively displayed on the screen as the adjustment value is changed.
- the difference gradually decreases and the adjustment value reaches a specific value the brightness difference between the test pattern 210 and the guide pattern 220 as described above may not be visually recognized by the user.
- the brightness of the test pattern 210 displayed on the screen is lower than the brightness of the guide pattern 220, the brightness of the test pattern 210 gradually increases as the adjustment value increases, and accordingly The difference in brightness between the test pattern 210 and the guide pattern 220 gradually decreases, so that the difference in brightness between the test pattern 210 and the guide pattern 220 may not be visually recognized by the user.
- an adjustment value display OSD (On Screen Display) for displaying an adjustment value input from a user may be displayed on the display screen 200.
- the adjustment value display OSD may be displayed.
- the value may be displayed in the form of a bar.
- the adjustment value display OSD may include a variable region 230 that is displayed variable according to the adjustment value, the remaining portion of the adjustment value display OSD except for the variable region 230 changes regardless of the adjustment value It may be a fixed area that is not.
- variable area 230 of the adjustment value display OSD may display a value of an image quality element by using at least one of a number, a character, and an abstract degree display.
- the display state of the test pattern 210 may be changed in synchronization with the change of the adjustment value display OSD.
- variable area 230 of the adjustment value display OSD changes as the input adjustment value changes, and the display state of the test pattern 210 is synchronized with the change in the variable area 230 of the adjustment value display OSD. Can also be changed.
- variable area 230 of the adjustment value display OSD is displayed in the y-direction, and the variable area 230 of the adjustment value display OSD is changed in the y-direction.
- the display state of the test pattern 210 may be changed.
- variable area 230 of the adjustment value display OSD changes in the y 'side direction, and the test area 210 simultaneously with the variable area 230 of the adjustment value display OSD in the y' side direction. ) May change the display state.
- the direction in which the variable region 230 of the adjustment value display OSD is changed and the direction in which the display state of the test pattern 210 is changed may coincide with each other.
- the change direction of the display state of the test pattern 210 may indicate whether the display state of the test pattern 210 is equal to an image adjacent to which direction based on the position of the test pattern 210.
- the change direction of the display state of the test pattern 210 is the first side direction. Can be defined.
- the display state of the test pattern 210 as the variable region 230 of the adjustment value display OSD is changed in the first side direction. May be gradually changed to be the same as the display state of the guide pattern 220 adjacent to the first side.
- the display state of the test pattern 210 is also adjacent to the y-direction.
- the pattern 220 may be gradually changed to be the same as the display state of the pattern 220.
- the difference between the display states of the test pattern 210 and the guide pattern 220 adjacent to the y-direction may be gradually decreased.
- variable region 230 of the adjustment value display OSD is changed in the y 'direction, the difference between the display states of the test pattern 210 and the guide pattern 220 may be gradually increased.
- the direction in which the variable area 230 of the adjustment value display OSD changes and the direction in which the display state of the test pattern 210 changes may appear to be the same from the user's perspective.
- the display state of the test pattern 210 may be intuitively and easily changed in a specific direction, for example, the direction in which the guide pattern 220 is located.
- the user when performing the image quality adjustment according to the present invention by visually matching the display states of the test pattern 210 and the guide pattern 220 as described above, the user removes the variable area 230 of the adjustment value display OSD.
- the display state of the test pattern 210 may be matched to the display state of the guide pattern 220 adjacent to the first side.
- the guide pattern 220 may include a plurality of images 221 and 222.
- any one of the plurality of images 221 and 222 included in the guide pattern 220 may be a standard image having a display state, that is, a standard image quality, as a reference for image quality adjustment as described above,
- a standard image quality as a reference for image quality adjustment as described above
- One may be an example image having a different display state than the standard image.
- the plurality of images 221 and 222 included in the guide pattern 220 may be disposed up, down, left, or right based on the test pattern 210, and as illustrated in FIG. 6, the test pattern (
- the standard image 221 may be positioned below the 210, and the example image 222 may be positioned above the standard image 221.
- the example image 222 is an image representing a display state when the test pattern 210 is not displayed in the standard image quality, and a user uses the displayed standard image 221 and the example image 222 to generate a test pattern (
- the display state of 210 may be set to more accurately match the standard image quality.
- the user can determine the difference between the displayed standard image 221 and the example image 220. Through this, the image quality characteristics of the standard image 221 and the standard image quality that the test pattern 210 should have more clearly understood, and thus the display of the standard image 221 included in the test pattern 210 and the guide pattern 220. You can match states more accurately.
- the display state of the test pattern 210 is changed in synchronization with the change of the adjustment value display OSD, and the display state of the test pattern 210 is changed in the variable region 230 of the adjustment value display OSD. This may be changed in a direction coinciding with the changing direction.
- the display state of the test pattern 210 is also adjacent to the y-direction. It may be gradually changed to be the same as the display state of the standard image 221.
- variable region 230 of the adjustment value display OSD is changed in the y-direction, the difference between the display states of the test pattern 210 and the standard image 221 adjacent thereto is gradually reduced. can do.
- variable area 230 of the adjustment value display OSD is changed in the y-direction, the test pattern 210 and the guide pattern 220 disposed adjacent to the y'-direction, that is, the example image 222, The difference in the display state may gradually increase.
- the display image of the test pattern 210 is also disposed adjacent to the y' side direction. It may be gradually changed to be equal to the display state of.
- the test pattern 210 and the example image 222 adjacent to the y' side direction gradually change in display state. Can be reduced.
- variable region 230 of the adjustment value display OSD is changed in the y 'side direction, the difference between the display states of the test pattern 210 and the standard image 221 disposed adjacent to the y side direction is gradually increased. Can increase.
- test pattern 210 and the guide pattern 220 may be adjacent to the left and right.
- the display state of the test pattern 210 changes in synchronization with the change of the adjustment value display OSD, and the display state of the test pattern 210 coincides with the direction in which the variable region 230 of the adjustment value display OSD changes. It can be changed in the direction.
- the display state of the test pattern 210 is also displayed adjacent to the x-direction. It may change gradually to be equal to the state.
- the example image 222 and the standard image 221 included in the guide pattern 220 may be displayed to be adjacent to the test pattern 210 to the left and right.
- the display state of the test pattern 210 is changed in synchronization with the change of the adjustment value display OSD, and the display state of the test pattern 210 is changed by the variable region 230 of the adjustment value display OSD. It may be changed in a direction that coincides with the changing direction.
- the display state of the test pattern 210 is also displayed adjacent to the x-direction. It may change gradually to be equal to the state.
- variable region 230 of the adjustment value display OSD is changed in the x-direction
- the example image 222 positioned on the x 'side of the test pattern 210 and the guide pattern 220 is different in display state. May increase gradually.
- the display state of the test pattern 210 is also disposed adjacent to the x' side. It may be gradually changed to be the same as the display state of the image 222.
- variable region 230 of the adjustment value display OSD is changed in the y 'direction, the difference between the display states of the test pattern 210 and the standard image 221 disposed on the x side may gradually increase. .
- a guide pattern 220 including a plurality of images 221 and 222 may be displayed under the test pattern 210.
- the image located on the x 'side of the guide pattern 220 may be an example image 222, and the image located on the x side may be the standard image 221.
- the display state of the test pattern 210 changes in synchronization with the change of the adjustment value display OSD, and the display state of the test pattern 210 coincides with the direction in which the variable region 230 of the adjustment value display OSD changes. It can be changed in the direction.
- the display state of the test pattern 210 is also displayed on the x-side of the guide pattern 220. It may be gradually changed to be the same as the display state of 221.
- the test pattern 210 and the image 222 disposed adjacent to the x'-direction gradually change in display state. Can increase.
- the display image of the test pattern 210 is also disposed adjacent to the x' side. It may be gradually changed to be equal to the display state of.
- variable region 230 of the adjustment value display OSD is changed in the y 'side direction, the difference in display state of the test pattern 210 and the standard image 221 disposed adjacent to the x side direction is gradually increased. Can increase.
- the guide pattern 220 displayed on the lower side of the test pattern 210 includes a standard image 221 and a plurality of example images 222 and 223 arranged left and right on the standard image 221. can do.
- the images included in the guide pattern 220 may be sequentially arranged in the order of the first example image 222, the standard image 221, and the second example image 223 in the x-direction.
- the display state of the test pattern 210 changes in synchronization with the change of the adjustment value display OSD, and the display state of the test pattern 210 coincides with the direction in which the variable region 230 of the adjustment value display OSD changes.
- Direction can be changed.
- the test pattern 210 may have a display state between the display state of the first example image 222 and the display state of the standard image 223.
- the brightness displayed by the test pattern 210 may be between the display brightness of the first example image 222 and the display brightness of the standard image 223. have. That is, the test pattern 210 may be displayed brighter than the first example image 222 and may be displayed darker than the standard image 221.
- an image 240 other than the test pattern 210 and the guide pattern 220 may be displayed on the display screen 200.
- the image 240 may be displayed over the entire area of the display screen 200, and accordingly, the image 240 may be a main image displayed on the image display device.
- the main image 240 displayed on the screen 200 may change according to the input adjustment value, and more specifically, the display state and the test pattern of the main image 240 according to the input adjustment value.
- the display state of 210 can be changed at the same time.
- the image signal corresponding to the main image 240 is also processed by the signal processor 160 as described with reference to FIGS. 3 and 4 like the image signal of the test pattern 210 and then the display unit ( 170, the display state of the main image 240 may be changed according to the input adjustment value.
- the display state of the test pattern 210 also moves in the x-direction. It may be gradually changed to become the same as the display state of the adjacently disposed standard image 221.
- variable region 230 of the adjustment value display OSD is changed in the x-direction, the first example image 222 positioned on the x 'side of the test pattern 210 and the standard image 222 is displayed.
- the difference may increase gradually.
- the display state of the test pattern 210 is displayed in the second example image 223 positioned on the x-side of the standard image 222. It may change gradually to be equal to the state.
- the display state of the test pattern 210 may be visually coincident with the display state of the standard image 221.
- the image quality adjustment according to the present invention can be performed.
- the display state of the test pattern 210 is changed, and at the same time, the display state of the main area 230 is also changed.
- the brightness of the test pattern 210 decreases as the adjustment value changes, the brightness of the main area 230 may also decrease.
- the color concentration of the main area 230 may also increase.
- the image quality characteristic of the main region 230 may be the same as the image quality characteristic of the test pattern 210 or some regions included in the test pattern 210, and the main region 230 and the same as the adjustment value is changed.
- the display state of at least a portion of the test pattern 210 having the same image quality characteristics may be changed at the same time.
- variable region 230 of the adjustment value display OSD changes in the x-direction beyond the first position, in this case, as shown in FIG. 12.
- the display state of 210 may be gradually changed to become the same as the display state of the second example image 223 located on the x side of the standard image 222.
- variable region 230 of the adjustment value display OSD is changed in the x-direction past the first position, the difference between the display states of the test pattern 210 and the standard image 222 may gradually increase. have.
- variable region 230 of the adjustment value display OSD is changed in the x-direction past the first position, the difference between the display states of the test pattern 210 and the first example image 222 may gradually increase. Can be.
- the display state of the main image 240 is also the display state of the test pattern 210. Can be changed with
- the image quality adjusting method according to an embodiment of the present invention is performed sequentially for each of a plurality of image quality items, for example, quality items such as brightness, contrast, color density, tint, sharpness, or brightness of a backlight. Can be.
- FIG. 13 illustrates an embodiment of a method of adjusting brightness of an image display device, and a description of the same elements as those described with reference to FIGS. 1 to 12 among the components shown in FIG. 13 will be omitted below. do.
- patterns 310 and 320 for adjusting brightness of a plurality of image quality adjustment items may be displayed on the display screen 200.
- the image signal input from the outside is processed by the signal processor 160 included in the image display apparatus and then displayed on the display unit 170.
- the initial value of the adjustment value applied to the image processing of the signal processor 160 is displayed.
- the image quality of the displayed image may be different from that of the original image, that is, the standard image quality, due to a (defualt value) or an incorrect image quality setting of the user.
- the black areas of the image may not be distinguished from each other, and if the user sets the brightness to a large value (the brightness control). If the value is set large, the white areas in the image may not be distinguished from each other.
- the brightness of an image displayed on the display unit 170 and visually displayed to the user may be set to correspond to the standard image quality as described above.
- the test pattern 310 may include a plurality of regions having different brightnesses.
- the test pattern 310 may include a plurality of first regions 311 and different first brightnesses. It may include a second region 312 and a third region 313.
- the second area 312 has about 0 IRE brightness
- the first area 311 has a higher brightness than the second area 312
- the third area 313 has a second area 312. It may have a lower brightness than).
- the brightness of the first area 311 of the test pattern 310 is + 4 IRE
- the brightness of the second area 312 is 0 IRE
- the brightness of the third area 313 is-4 It may be an IRE.
- the brightness of the color may be displayed with a gray scale of 0 to 255.
- Color reproduction of the gray scale of 16 to 235 is performed according to the image quality standard.
- the gray level of 16 which becomes the darkest black, is set to 0 IRE
- the gray level of 8 can be set to -4 IRE and the 24 gray level to +4 IRE.
- the 8th gradation image data and the 16th gradation image data are displayed so as not to be identified on the display screen 200, and the 16th gradation image data and the 24th gradation image are displayed.
- the data may be displayed so that it is not identified on the display screen 200.
- the brightness difference between the second area 312 and the third area 313 of the test pattern 310 is not visually identified by the user, and the first area 311 and the second area are not visually identified.
- the brightness difference of 312 may be a case where the user's visual identification is set to the brightness of the standard image quality as described above.
- the case where the brightness of the image is not set to standard image quality is shown as 4a and 4c, and the standard image quality is shown as 4b.
- Adjusting the brightness of the image is to change the y-intercept of the straight line in the graph as shown in FIG. 16, the y-intercept of the straight line increases as the brightness increases, and the y-intercept of the straight line decreases when the brightness decreases. Can be.
- the color reproducibility for black or white gradation is inferior.
- the gradation from -4 IRE to 96 IRE can be displayed.
- gray scales from + 4 IRE to 104 IRE may be displayed on the display screen 200 in the case of the straight line 4c.
- the brightness may be adjusted such that the gradations from 0 IRE to 100 IRE are represented on the display screen 200 as shown in 4b of FIG. 16.
- a case in which color reproduction is made of 8 bits, 16 gradations are 0 IRE, and 235 gradations is 100 IRE can be defined as the standard image quality.
- the standard image quality when the image data indicates less than 16 gradations, all are 0 IRE.
- the image data is displayed on the screen 200 and the image data exceeds 235 gray levels, all of the image data may be displayed on the screen 200 at 100 IRE.
- the configuration of the test pattern 310 as described above is only one embodiment of the present invention, accordingly, the brightness or shape of each of the first, second, third regions 311, 312, 313 may vary.
- the first, second, and third regions 311, 312, and 313 constituting the test pattern 310 may have brightness of ⁇ 2 IRE, 0 IRE, and + 2 IRE, respectively.
- the brightness adjustment menu window 300 displaying the guide pattern 320 including the plurality of images 321, 322, and 323 may be displayed on the display screen 200.
- the standard image (Recommended, 321) arranged in the center of the guide pattern 320 is a reference for setting the brightness of the image to the brightness of the standard image quality, the user can display the test pattern 310 and the standard image 321
- the brightness of standard image quality can be set by setting an adjustment value such that the state, that is, the brightness of the areas included in each pattern is visually matched.
- the standard image 321 may be generated and stored in the memory 150 to have the contrast displayed in the test pattern 310 at the standard image quality as described above, more specifically with reference to FIG. 16. It may have the same brightness characteristics as the straight line 4b described.
- the standard image 321 includes a first region and a second region having different brightnesses from each other, and the first region of the standard image 321 is located in the pattern with the first region 311 of the test image 310.
- the second area of the standard image 321 may correspond to the second and third areas 312 and 313 of the test image 310 and correspond to positions in the pattern.
- the brightness of each of the areas 311, 312, and 313 included in the test pattern 310 is shown in FIG. 15.
- the brightness of the displayed image may be set to match the brightness of the standard image quality, and to be matched with the user's time of view.
- the first example images Low and 322 positioned on the left side of the standard image 321 among the guide patterns 320 may have a test pattern 310 when the adjustment value input by the user, that is, the brightness adjustment value has a low value. It indicates the display state of.
- variable area 230 of the adjustment value display OSD is changed to the left side, and thus the display state of the test pattern 310 is the same as that of the first example image Low and 322. Can be changed gradually to resolve.
- the first exemplary image Low and 322 are images having a uniform brightness over the entire region, and more specifically, have a brightness characteristic such as the straight line 4a described with reference to FIG. 16. It may be the case that image data from IRE to +4 IRE are all displayed as 0 IRE.
- all of the areas 311, 312, and 313 of the test pattern 310 having the brightness of + 4 IRE, O IRE, and ⁇ 4 IRE, respectively, are the first example image Low, 322, such as 0 IRE.
- the second example images High and 323 positioned on the right side of the standard image 321 among the guide patterns 320 may have a test pattern 310 when the adjustment value input by the user, that is, the brightness adjustment value has a high value. It indicates the display state of.
- variable area 230 of the adjustment value display OSD is changed in the right direction, and accordingly, the display state of the test pattern 310 is the same in the second example image High and 322. Can be changed gradually to resolve.
- the second example image High and 323 is composed of three regions having different brightnesses from each other, and more specifically, has a brightness characteristic such as the straight line 4c described with reference to FIG. 16.
- -Image data from 4 IRE to 0 IRE may also be displayed on the screen.
- Each of the brightnesses is displayed differently from each other, and can be visually identified to the user.
- the brightness adjustment menu window 300 includes a phrase for adjusting the brightness value so that the display state of the test pattern 310 and the display state of the standard image (Recommended) 321 displayed on the lower side coincide with each other. May be displayed, thereby inducing the user to set the adjustment value by matching the display state of the test pattern 310 and the standard image (Recommended, 321).
- the brightness adjustment menu window 300 displays an image quality item to be adjusted (ie, brightness), and displays an adjustment value OSD 330 for indicating an input brightness adjustment value.
- a plurality of input buttons 340 and 350 may be displayed.
- the "RETURN” button 340 may be for returning to the previous page or the previous image quality item, and the " ⁇ " button 350 may be for setting the brightness to the currently input adjustment value.
- the user selects the “ ⁇ ” button 350 and adjusts at the matching time point.
- the brightness level can be set by the value.
- the "RETURN" button 340 and the " ⁇ ” button 350 may be provided in the video display device, or may be provided in a remote controller (not shown) outside the video display device.
- test pattern 310 as described with reference to FIGS. 13 to 15 is only one embodiment of the present invention, the shape, size, number of areas, or brightness of each of the test patterns 310 may be determined. can be changed.
- the plurality of regions 311, 312, and 313 included in the test pattern 310 may be sequentially arranged based on a specific direction.
- the first region 311 is disposed adjacent to the left side of the second region 312 among the test patterns 310, and the third region 313 is disposed adjacent to the right side of the second region 312. Can be.
- first, second, and third regions 311, 312, and 313 included in the test pattern 310 may be-4 IRE, 0 IRE, and + 4 IRE, or-2 IRE, 0 IRE, and + as described above. It can have the same brightness as 2 IRE.
- the brightness of the image may be set to the brightness of standard image quality.
- the brightness difference between the first and second areas 311 and 312 of the areas 311, 312 and 313 included in the test pattern 310 is not visually identified to the user.
- the brightness difference between the second and third regions 312 and 313 may be set by changing an adjustment value so as to be visually identified to the user.
- the standard image 321 included in the guide pattern 320 may have a shape and brightness as shown in FIG. 18. That is, the standard image 321 may include a first region corresponding to the first and second regions 311 and 312 of the test pattern 310 and a second region corresponding to the third region 313 of the test pattern 310. Including a region, the first and second regions may be arranged left and right.
- FIG. 19 illustrates an embodiment of a method of adjusting contrast of an image display device. A description of the same elements as those described with reference to FIGS. 1 to 18 among the elements shown in FIG. 19 will be omitted below. do.
- patterns 410 and 420 for adjusting contrast among a plurality of image quality adjustment items may be displayed on the display screen 200.
- the test pattern 410 may include a plurality of areas having different brightnesses.
- the test pattern 410 may include a first area 411, a second area 412, and different brightnesses. It may include a third region 413.
- the first region 411 may have lower brightness than the second region 412, and the third region 413 may have higher brightness than the second region 412, for example, the second region 412.
- Region 412 may have a brightness of about 100 IRE.
- the brightness of the first region 411 of the test pattern 410 is 97.5 IRE
- the brightness of the second region 412 is 100 IRE
- the brightness of the third region 413 is 102.5 IRE Can be.
- the brightness difference between the second area 412 and the third area 413 of the test pattern 410 is not visually identified by the user.
- the brightness difference between the first region 411 and the second region 412 may be visually identified by the user.
- Adjusting the contrast of the image changes the slope of the straight line in the graph as shown in FIG. 22.
- the slope of the straight line increases, and when the contrast decreases, the slope of the straight line may decrease.
- the color reproducibility for white gradation is inferior.
- image data of gradations exceeding 100 IRE is represented on the display screen 200, and the straight line 4c In this case, only image data of less than 100 IRE, for example, up to about 95 IRE may be represented on the display screen 200.
- image data of more than 95 IRE gray scales may not be displayed on the display screen 200, and all of them may be displayed in white of 100 IRE.
- the contrast may be adjusted such that the gray scales from 0 IRE to 100 IRE are represented on the display screen 200.
- the first area 411 having the brightness of 97.5 IRE and the second area 412 having the brightness of 100 IRE of the test pattern 410 are displayed so that the brightness difference is identified to the user.
- the second region 412 having a brightness of and the third region 413 having a brightness of 102.5 IRE may be displayed so that the brightness difference is not visually identified to the user, thereby setting the contrast of the image to the standard image quality.
- the configuration of the test pattern 410 as described above is only one embodiment of the present invention, accordingly the brightness or shape of each of the first, second, third regions (411, 412, 413) can be varied.
- the first, second, and third regions 411, 412, and 413 constituting the test pattern 410 may have brightness of 104 IRE, 106 IRE, and 108 IRE, respectively.
- the contrast adjustment menu window 400 on which the guide pattern 420 including the plurality of images 421, 422, and 423 is displayed may be displayed on the display screen 200.
- the standard image (Recommended) 421 arranged at the center of the guide pattern 420 serves as a reference for setting the contrast of the image to the contrast of the standard image quality.
- the contrast of the standard image quality can be set by setting an adjustment value such that the state, that is, the brightness of the areas included in each pattern is visually matched.
- the standard image 421 may be generated to have a contrast in which the test pattern 410 is displayed at the standard image quality as described above and then stored in the memory 150, more specifically with reference to FIG. 22. It may have the same brightness characteristics as the straight line 6b described.
- the standard image 421 includes a first region and a second region having different brightnesses from each other, and the first region of the standard image 421 is located in the pattern and the first region 411 of the test image 410.
- the second area of the standard image 421 may correspond to the second and third areas 412 and 413 of the test image 410 in the pattern.
- the brightness of each of the regions 411, 412, and 413 included in the test pattern 410 is shown in FIG. 21.
- the brightness may be set as such, so that the contrast of the displayed image may be set to match the contrast of the standard image quality, and may actually be matched based on the time of the corresponding user.
- the first example images Low and 422 positioned on the left side of the standard image 421 among the guide patterns 420 may have a test pattern 410 when the adjustment value input by the user, that is, the contrast adjustment value has a low value. It indicates the display state of.
- the position of the variable region 230 of the adjustment value display OSD changes to the left direction, and accordingly, the display state of the test pattern 410 is changed to the first example image (Low, 422). It can be changed gradually to be equal to.
- the first exemplary image Low and 422 is configured of three regions having different brightnesses, and more specifically, has a brightness characteristic such as the straight line 6a described with reference to FIG. 22.
- Image data from 100 IRE to 102.5 IRE may also be represented on the screen 200.
- each of the regions 411, 412, 413 of the test pattern 410 having the brightness of 97.5 IRE, 100 IRE, and 102.5 IRE, respectively, as in the first example image Low and 421. These brightnesses are displayed differently from each other, so that they can be visually identified to the user.
- the second example images High and 423 located on the right side of the standard image 421 among the guide patterns 420 may have the high value of the adjustment value input by the user, that is, the contrast value of the test pattern 410. Indicates the display state.
- variable area 230 of the adjustment value display OSD changes to the right direction, and accordingly, the display state of the test pattern 410 is the same in the second example image High and 422. Can be changed gradually to resolve.
- the second exemplary image High and 423 is an image having a uniform brightness over the entire region, and more specifically, has a brightness characteristic such as the straight line 6c described with reference to FIG. 22, and thus 97.5 IRE. It may be the case that all image data having the above gray levels are displayed in 100 IRE.
- the regions 411, 412, and 413 of the test pattern 410 having the brightness of 97.5 IRE, 100 IRE, and 102.5 IRE, respectively, are all different from the second example image High and 422. Likewise, it can be displayed in 100 IRE gray scales, that is, white.
- the user selects the " ⁇ " button 450 and contrasts with the adjustment value at the matching time point. You can set the level.
- test pattern 410 as described with reference to FIGS. 19 to 22 is only an embodiment of the present invention, the shape, the size, the number of areas or the brightness of each of the areas may be determined. can be changed.
- the first region 11 is disposed adjacent to the left side of the second region 412 of the test pattern 410, and the third region 13 is adjacent to the right side of the second region 412.
- the first, second, and third regions 411, 412, and 413 may have brightness such as 97.5 IRE, 100 IRE, and 102.5 IRE or 104 IRE, 106 IRE, and 108 IRE, as described above.
- the contrast of the image may be set to the contrast of the standard image quality.
- the difference in brightness of the first and second regions 411 and 412 among the regions 411, 412 and 413 included in the test pattern 410 is not visually identified to the user.
- the difference in brightness of the second and third regions 412 and 413 may be set by changing a contrast adjustment value so that the user can visually identify the user.
- the standard image 421 included in the guide pattern 420 may have a shape and brightness as shown in FIG. 24. That is, the standard image 421 may include a first region corresponding to the first and second regions 411 and 412 of the test pattern 410 and a second region corresponding to the third region 413 of the test pattern 410. Including a region, the first and second regions may be arranged left and right.
- FIG. 25 illustrates an embodiment of a method of adjusting a color of an image display device, and descriptions of the same elements as those described with reference to FIGS. 1 through 24 among the elements illustrated in FIG. 25 will be omitted. Shall be.
- patterns 510 and 520 for adjusting color density among a plurality of image quality adjustment items may be displayed on the display screen 200.
- the test pattern 510 may include a plurality of areas having different colors from each other.
- the test pattern 510 may include the first area 511 and the second area 512 having different colors from each other. It may include.
- the first region 511 has a white color
- the second region 512 has a plurality of colors, for example, any one of red, green, and blue. It may have a color that includes only.
- the second region 512 may be composed of image data corresponding to 75% blue color.
- the image signal of the test pattern 510 may be extracted to the display unit 170 by extracting only a signal corresponding to a blue color from the end of the signal processor 160, and accordingly, the display unit 170 may test Only the blue color of the pattern 510 may be displayed.
- the gamma correction unit 164 may output only the blue color of the image signal of the input test pattern 510.
- the YUV signal may be RGB by the CSC block 163. Only a signal corresponding to a blue color among the image signals of the test pattern 510 converted to the signal may be filtered and output to the image synthesizer 171.
- the color in which the second area 512 is displayed may be changed. That is, the blue color concentration of the second area 512 to be displayed may increase as the input color concentration value increases, and the blue color of the second area 512 to be displayed as the input color concentration value decreases. Color concentration may decrease.
- the display state that is, the displayed color does not change even when the input adjustment value is changed. That is, even if the input color concentration value is increased or decreased, the blue color concentration of the first region 511 is maintained at 75% of the original color, and thus, regardless of the input adjustment value, the blue color concentration of the first region 511 is maintained.
- the displayed color can maintain a constant blue color.
- the displayed color difference between the first area 511 and the second area 512 of the test pattern 510 may not be visually identified by the user. You can not.
- the first area 511 having the 75% white color and the second area 512 having the 75% blue color of the test pattern 510 are recognized by the user with the same color, thereby making it possible to color the image.
- Color can be set to standard image quality.
- test pattern 510 as described above is only one embodiment of the present invention, and accordingly, the color or shape of each of the first and second regions 511 and 512 may vary.
- the color adjustment menu window 500 displaying the guide pattern 520 including the plurality of images 521, 522, and 523 may be displayed on the display screen 200.
- the standard image (Recommended) 521 arranged at the center of the guide pattern 520 serves as a reference for setting the color density of the image to the standard image quality, and the user may display the display state of the test pattern 510 and the standard image 521. That is, by setting the adjustment value so that the brightness of the areas included in each pattern visually matches, the color density of the standard image quality can be set.
- the standard image 521 may be generated to have the color density displayed by the test pattern 510 at the standard image quality as described above and then stored in the memory 150, more specifically as shown in FIG. 27. As described above, it may be composed of one region having a uniform color.
- the color of each of the regions 511 and 512 included in the test pattern 510 is as shown in FIG. 27. It may have a color, so that the color density of the displayed image may be set to match the standard image quality, and may actually be matched based on the time of the corresponding user.
- the first example images Low and 522 positioned on the left side of the standard image 521 among the guide patterns 520 may have a test pattern 510 when the adjustment value input by the user, that is, the color density adjustment value has a low value. ) Display status.
- variable area 230 of the adjustment value display OSD changes to the left, and accordingly, the display state of the test pattern 510 is different from that of the first example image Low and 522. It can change gradually to become the same.
- the first exemplary image Low and 522 is composed of two regions having different colors from each other, and more specifically, the first exemplary image Low and 522 are positioned within the first region and the first region. It may include a second area having a blue color concentration lower than one area.
- the displayed blue color concentration of the second area 512 of the test pattern 510 is decreased, so that the first and second areas 511 and 512 become the first example image (Low).
- 521 may be displayed in different colors and visually identified to the user. In this case, more specifically, as shown in the first example image Low and 521, the second region 512 of the test pattern 510 may be displayed with a lower blue color concentration than the first region 511.
- the second example images High and 522 located on the right side of the standard image 521 among the guide patterns 520 may be configured to have the high value of the adjustment value input by the user, that is, the color density adjustment value. Indicates the display state.
- variable area 230 of the adjustment value display OSD changes to the right, and accordingly, the display state of the test pattern 510 is changed from the second example image High and 522. It can change gradually to become the same.
- the second exemplary image High and 522 is composed of two regions having different colors from each other, and more specifically, the second exemplary image High and 522 is located inside the first region and the first region. It may include a second region having a blue color concentration higher than one region.
- the displayed blue color concentration of the second area 512 of the test pattern 510 increases, so that the first and second areas 511 and 512 become the second example image High, 522 may be displayed in different colors and visually identified to the user.
- the second area 512 of the test pattern 510 may be displayed with a higher blue color concentration than the first area 511.
- the user selects the " ⁇ " button 550, and the color is adjusted as the adjustment value at the matching time.
- the concentration level can be set.
- test pattern 510 as described with reference to FIGS. 25 to 27 is only an embodiment of the present invention, the shape, size, number of areas, or brightness of each of the test patterns 510 may be determined. can be changed.
- the test pattern 510 includes first and second regions 511 and 512 that are displayed adjacent to the left and right sides, and the first and second regions 511 and 512 are respectively 75 as described above. It can have a white color of% and a blue color of 75%.
- the color density of the image may be set to the standard image quality.
- the color concentration value may be changed so that the color difference between the first and second regions 511 and 512 included in the test pattern 510 is not visually identified to the user.
- the standard image 521 included in the guide pattern 520 may also have a shape and color as shown in FIG. 29.
- FIG. 30 illustrates an embodiment of a method of adjusting a tint of an image display apparatus, and a description of the same elements as those described with reference to FIGS. 1 to 29 among the components illustrated in FIG. 30 will be omitted below. do.
- patterns 610 and 620 for adjusting a tint among a plurality of image quality adjustment items may be displayed on the display screen 200.
- the test pattern 610 may include a plurality of areas having different colors from each other.
- the test pattern 610 may include the first area 611 and the second area 612 having different colors from each other. It may include.
- the first region 611 has one of cyan, magenta, and yellow
- the second region 612 has the other of cyan, magenta, and yellow.
- the first region 611 of the test pattern 610 may be composed of image data corresponding to cyan color of 75% blue and 75% red, and the second area. 612 may include image data corresponding to magenta colors in which 75% blue and 75% green colors are mixed.
- the image signal of the test pattern 610 may be extracted to the display unit 170, only the signal corresponding to the blue color is extracted from the last end of the signal processor 160, Accordingly, the display 170 may display only the blue color of the test pattern 610.
- the color axis is shifted.
- the color intensity generally increases for one color, but decreases for the other color.
- the displayed color of the first area 611 is changed, and at the same time the displayed color of the second area 612 may be changed.
- the blue color concentration of the displayed first area 611 may decrease, and the blue color concentration of the displayed second area 612 may increase.
- the blue color concentration of the displayed first area 611 may increase, and the blue color concentration of the displayed second area 612 may decrease.
- the displayed color difference between the first area 611 and the second area 612 of the test pattern 610 may not be visually identified by the user. Can be.
- the first region 511 having 75% cyan color and the second region 612 having 75% magenta color of the test pattern 610 are recognized by the user with the same color, thereby tinting the image. You can set (tint) to standard definition.
- test pattern 610 as described above is only one embodiment of the present invention, accordingly, the color or shape of each of the first and second regions 611 and 612 may be varied.
- the tint adjustment menu window 600 displaying the guide pattern 620 including the plurality of images 621, 622, and 623 may be displayed on the display screen 200.
- the standard image (Recommended) 521 arranged at the center of the guide pattern 620 serves as a reference for setting the tint of the image to the standard image quality.
- the user may display the display state of the test pattern 610 and the standard image 621, That is, by setting an adjustment value such that the brightness of the regions included in each pattern is visually matched, tints of standard image quality may be set.
- the standard image 621 may be generated to have a tint that is displayed with the test pattern 610 at the standard image quality as described above, and then stored in the memory 150, more specifically as shown in FIG. 32. As described above, it may be configured as one region having a uniform color.
- the color of each of the regions 611 and 612 included in the test pattern 610 is as shown in FIG. 32. It may have a color, so that the tint of the displayed image may be set to match the standard image quality, and may actually appear to match the user's time of view.
- the first example images Low and 622 positioned on the left side of the standard image 621 among the guide patterns 620 may display the display state of the test pattern 610 when the tint adjustment value input by the user has a low value. To indicate.
- variable area 230 of the adjustment value display OSD is changed to the left direction, and thus the display state of the test pattern 610 is changed from the first example image Low and 622. It can change gradually to become the same.
- the first exemplary image Low and 622 may include two regions having different colors from each other, and more specifically, may be located within the first region and the first region. It may include a second area having a blue color concentration lower than one area.
- the first and second regions 611 and 612 may be displayed in different colors such as the first exemplary image Low and 621 to be visually identified to the user.
- the second area 612 of the test pattern 610 may be displayed with a lower blue color concentration than the first area 611.
- the second example images High and 622 positioned on the right side of the standard image 621 among the guide patterns 620 indicate the display state of the test pattern 610 when the tint adjustment value input by the user has a high value. .
- variable area 230 of the adjustment value display OSD is changed to the right direction, and accordingly, the display state of the test pattern 610 is different from that of the second example image High and 622. It can change gradually to become the same.
- the second exemplary image High and 622 may be formed of two regions having different colors from each other, and more specifically, may be located within the first region and the first region. It may include a second region having a blue color concentration higher than one region.
- the two regions 611 and 612 may be displayed in different colors such as the second exemplary image High and 622 to be visually identified to the user.
- the second region 612 of the test pattern 610 may be displayed with a higher blue color concentration than the first region 611.
- the user selects the " ⁇ " button 650 to tint the adjustment value at the matching time point. You can set the level.
- test pattern 610 as described with reference to FIGS. 30 to 32 is only one embodiment of the present invention, the shape, size, number of areas, or brightness of each of the test patterns 610 may be determined. can be changed.
- the test pattern 610 includes first and second regions 611 and 612 that are displayed to be adjacent to the left and right, and the first and second regions 611 and 612 are respectively 75 as described above. % Cyan and 75% magenta.
- the tint of the image may be set to standard image quality.
- the tint adjustment value may be changed and set so that color differences of the first and second areas 611 and 612 included in the test pattern 610 are not visually identified to the user.
- the standard image 621 included in the guide pattern 620 may also have a shape and color as shown in FIG. 34.
- 35 to 37 illustrate an embodiment of a method of adjusting sharpness of an image display device, and the same elements as those described with reference to FIGS. 1 to 34 among the components illustrated in FIGS. Description will be omitted below.
- patterns 710 and 720 for adjusting horizontal sharpness may be displayed on the display screen 200.
- the plurality of images 721, 722, and 723 included in the test pattern 710 and the guide pattern 720 may each include one or more lines extending in the vertical direction.
- the adjustment value that is, the display state of the vertical line displayed in the test pattern 710 and the display state of the vertical line displayed in the standard image 721 included in the guide pattern 720 match, that is, You can set the horizontal sharpness value.
- the sharpness in the vicinity of an area having a high frequency component such as an edge or a texture of an original signal may be improved.
- the signal becomes a signal as shown in 12B of FIG. 36, and the filtering error is applied by applying 'Coring' or 'Thresholding' to the signal. Can be removed
- the weight value is set to a large value, the sharpness is improved, but peaking occurs on the screen, and ultimately, the user is likely to be perceived as an image containing annoying noise.
- the weight multiplied by the high frequency band of the image signal as described above is changed, and accordingly the sharpness of the line displayed in the test pattern 710. Can be changed.
- the weight may increase to increase the sharpness of the vertical line displayed in the test pattern 710.
- the weight may decrease, so that the sharpness of the vertical line displayed in the test pattern 710 may decrease.
- the vertical lines displayed in the test pattern 710 may be clearly displayed as one line with uniform brightness.
- test pattern 710 as described above is only one embodiment of the present invention, accordingly, the color, brightness or number of vertical lines included in the test pattern 710 may vary.
- the horizontal sharpness adjustment menu window 700 in which the guide pattern 720 including the plurality of images 721, 722, and 723 is displayed may be displayed on the display screen 200.
- the standard image (Recommended, 721) arranged in the center of the guide pattern 720 is a reference for setting the horizontal sharpness of the image to the standard image quality, and the user displays the display state of the test pattern 710 and the standard image 721. That is, the horizontal sharpness of the standard image quality can be set by setting an adjustment value so that the brightness and shape of the vertical lines included in each pattern are visually matched.
- the standard image 721 may be generated and stored in the memory 150 to have a sharpness in which the test pattern 710 is displayed at the standard image quality as described above, more specifically as shown in FIG. 35. As shown, it may be configured to include one vertical line having uniform brightness.
- the vertical lines displayed in the test pattern 710 may be displayed as one line having uniform brightness, and as such Therefore, the horizontal sharpness of the displayed image may be set to match the standard image quality, and may actually appear to match based on the time of the corresponding user.
- the first exemplary image (Low, 722) located on the left side of the standard image 721 of the guide pattern 720 is the display state of the test pattern 710 when the horizontal sharpness adjustment value input by the user has a low value It represents.
- variable area 230 of the adjustment value display OSD is changed to the left direction, and accordingly, the display state of the test pattern 710 is changed to the first example image (Low, 722). It can be changed gradually to be equal to.
- the first exemplary image Low 722 may include a vertical line having low sharpness, that is, a boundary between a line and a surrounding is uncertain, and the brightness of the boundary portion has a value of 2 or more. have.
- the horizontal sharpness adjustment value when the horizontal sharpness adjustment value is very low, the horizontal sharpness of the vertical lines displayed in the test pattern 710 may be reduced, so that the boundary between the vertical lines and the surroundings may be displayed in an uncertain manner as in the first exemplary image Low and 721. Can be.
- the second example images High and 722 positioned on the right side of the standard image 721 among the guide patterns 720 indicate the display state of the test pattern 710 when the horizontal sharpness adjustment value input by the user has a high value. will be.
- variable area 230 of the adjustment value display OSD is changed in the right direction, and accordingly, the display state of the test pattern 710 is changed to the second example image (High, 722). It can be changed gradually to be equal to.
- the second example image High and 722 may include a plurality of vertical lines having different brightnesses.
- the picking may occur around the vertical line of the test pattern 710 as described above, so that a line having a higher brightness is displayed around the vertical line.
- a plurality of vertical lines with different brightnesses may be seen by the user.
- the test pattern 710 when the horizontal sharpness adjustment value becomes very high, the test pattern 710 generates vertical lines each having a white color on the left and right sides of the vertical line, such as the display state of the second exemplary image High, 722. Thus, a plurality of vertical lines which are visually different from each other visually to the user may be identified.
- the user selects the " ⁇ " button 750 and the horizontal value is adjusted to the adjusted value at the matching point. You can set the sharpness level.
- patterns 810 and 820 for adjusting vertical sharpness may be displayed on the display screen 200.
- the plurality of images 821, 822, and 823 included in the test pattern 810 and the guide pattern 820 may each include one or more lines extending in the horizontal direction.
- the adjustment value that is, the display state of the horizontal line displayed in the test pattern 810 and the display state of the horizontal line displayed in the standard image 821 included in the guide pattern 820 coincide with each other. You can set the vertical sharpness value.
- the weight as described above may increase, so that the sharpness of the horizontal line displayed in the test pattern 810 may increase.
- the weight decreases, so that the sharpness of the horizontal line displayed in the test pattern 810 may decrease.
- the horizontal line displayed in the test pattern 810 may be clearly displayed as one line with uniform brightness.
- test pattern 810 as described above is only an embodiment of the present invention, accordingly, the color, brightness or number of horizontal lines included in the test pattern 810 may be varied.
- the vertical sharpness adjustment menu window 800 displaying the guide pattern 820 including the plurality of images 821, 822, and 823 may be displayed on the display screen 200.
- the standard image (Recommended) 821 arranged at the center of the guide pattern 820 serves as a reference for setting the vertical sharpness of the image to the standard image quality.
- the user may display the display state of the test pattern 810 and the standard image 821. That is, the vertical sharpness of the standard image quality can be set by setting the adjustment value so that the brightness and shape of the horizontal line included in each pattern are visually matched.
- the standard image 821 may be generated to have a sharpness in which the test pattern 810 is displayed at the standard image quality as described above, and then stored in the memory 150, more specifically, as shown in FIG. 37. As shown, it may be configured to include one vertical line having uniform brightness.
- the horizontal lines displayed in the test pattern 810 may be displayed as one line having uniform brightness, and as such Due to this, the vertical sharpness of the displayed image may be set to match the standard image quality, and may be actually matched based on the user's perspective.
- the first exemplary image Low and 822 positioned on the left side of the standard image 821 of the guide pattern 820 may display a display state of the test pattern 810 when the vertical sharpness adjustment value input by the user has a low value. It represents.
- variable area 230 of the adjustment value display OSD is changed to the left direction, and accordingly, the display state of the test pattern 810 is the first example image (Low, 822). It can be changed gradually to be equal to.
- the first exemplary image Low 822 may include a horizontal line having low sharpness, that is, a boundary between a line and a surrounding is uncertain, and thus the brightness of the boundary portion has a value of 2 or more. have.
- the vertical sharpness adjustment value becomes very low, the vertical sharpness of the horizontal line displayed in the test pattern 810 may be reduced, so that the boundary between the horizontal line and the surroundings may be displayed in an uncertain manner as shown in the first example image (Low) 821. Can be.
- the second example images High and 822 located on the right side of the standard image 821 among the guide patterns 820 indicate the display state of the test pattern 810 when the vertical sharpness adjustment value input by the user has a high value. will be.
- variable area 230 of the adjustment value display OSD is changed in the right direction, and accordingly, the display state of the test pattern 810 is changed to the second example image (High, 822). It can be changed gradually to be equal to.
- the second example image High and 822 may include a plurality of horizontal lines having different brightnesses.
- the picking may occur around the horizontal line of the test pattern 810 as described above, so that a line having a higher brightness is displayed around the horizontal line.
- a plurality of horizontal lines having different brightnesses may be seen by the user.
- the test pattern 810 when the vertical sharpness adjustment value becomes very high, the test pattern 810 generates horizontal lines each having a white color on the left and right sides of the horizontal line, such as the display state of the second exemplary image High, 822.
- the test pattern 810 generates horizontal lines each having a white color on the left and right sides of the horizontal line, such as the display state of the second exemplary image High, 822.
- a plurality of horizontal lines which are visually different from each other visually to the user can be identified.
- the user selects the " ⁇ " button 850 to vertically adjust the adjustment value at the coincidence point. You can set the sharpness level.
- the main image 240 as described with reference to FIGS. 10 to 12 is not displayed on the display screen 200. However, in the case illustrated in FIGS. The main image 240 may be displayed.
- the main image displayed on the display screen 200 may change simultaneously with the test pattern as the adjustment value is changed.
- FIG. 38 illustrates an embodiment of a method of adjusting backlight brightness of an image display device. A description of the same elements as those described with reference to FIGS. 1 to 37 among the components shown in FIG. 38 will be omitted below. Shall be.
- a liquid crystal panel of an LCD includes a liquid crystal layer and a TFT substrate and a color filter substrate facing each other with the liquid crystal layer interposed therebetween, and have no self-luminous power to display an image using light provided from a backlight unit. Can be.
- patterns 910 and 920 for adjusting the brightness of the backlight may be displayed on the display screen 200.
- the test pattern 910 may be displayed as a background screen on the entire area of the display screen 200, and the brightness of the test pattern 910 may be increased as the backlight adjustment value input from the user is changed. Can be changed.
- the brightness of the displayed test pattern 910 may increase, and as the backlight adjustment value decreases, the brightness of the displayed test pattern 910 may decrease.
- the backlight adjustment menu window 900 displaying the guide pattern 920 including the plurality of images 921, 922, and 923 may be displayed on the display screen 200.
- the standard image (Recommended) 921 arranged at the center of the guide pattern 920 serves as a reference for setting the brightness of the backlight to the standard image quality.
- the user may display the display state of the test pattern 910 and the standard image 921, In other words, the standard image quality can be set by setting the adjustment value so that the overall brightness visually matches.
- the standard image 921 may be generated and stored in the memory 150 with the brightness displayed by the test pattern 910 at the standard image quality as described above.
- the brightness of the backlight may be set to correspond to the standard image quality so that it may actually appear corresponding to the user's time of view. have.
- the first example images Low and 922 positioned on the left side of the standard image 921 among the guide patterns 920 may display the display state of the test pattern 910 when the backlight adjustment value input by the user has a low value. To indicate.
- variable area 230 of the adjustment value display OSD is changed to the left direction, and accordingly, the display state of the test pattern 910 is changed from the first example image Low and 922. It can change gradually to become the same.
- the first example image Low and 922 may have a lower screen brightness than the standard image 921.
- the overall brightness of the test pattern 910 may be darkened to be the same as the overall brightness of the first example image Low and 921.
- the second example images High and 922 positioned to the right of the standard image 921 among the guide patterns 920 indicate the display state of the test pattern 910 when the backlight adjustment value input by the user has a high value. .
- variable area 230 of the adjustment value display OSD is changed in the right direction, and accordingly, the display state of the test pattern 910 is changed from the second example image High and 922. It can change gradually to become the same.
- the second example image High and 922 may have a higher screen brightness than the standard image 921.
- the overall brightness of the test pattern 910 may be brightened to be the same as the overall brightness of the second exemplary image High and 922.
- the user selects the " ⁇ " button 950, and the backlight brightness level as the adjustment value at the matching time point. Can be set.
- the backlight unit included in the image display device may be driven in a full driving method or a partial driving method such as local dimming or impulsive.
- the driving method of the backlight unit may be variously changed according to a circuit design, but is not limited thereto. As a result, the color contrast ratio is increased and the image of the bright and dark portions on the screen can be clearly expressed, thereby improving image quality.
- the backlight unit is divided into a plurality of divided driving regions, and the luminance of the divided driving regions is linked with the luminance of the image signal, so that the black portion of the image decreases the brightness and the bright portion increases the brightness, thereby increasing the contrast ratio and Sharpness can be improved.
- the backlight brightness adjusting method as described with reference to FIG. 38 may be performed for each of the plurality of divided driving regions of the backlight unit, and thus the brightness may be adjusted for each of the plurality of divided driving regions.
- a plurality of image quality items as described with reference to FIGS. 13 to 38 that is, brightness, contrast, color, tint, sharpness or backlight Image quality adjustment for each of the brightness of the may be performed sequentially in a predetermined order.
- brightness adjustment as described with reference to FIGS. 13 to 18 is performed first, and contrast adjustment as described with reference to FIGS. 19 to 24 is performed. Can be.
- the brightness adjustment is to adjust the y intercept value of the straight line representing the brightness level of the image, that is, the DC value.
- the contrast adjustment indicates the brightness level of the image. It is to adjust the slope of the straight line, that is, the gain.
- the contrast when the contrast is adjusted when the y-intercept value of the straight line is set incorrectly, the brightness, that is, the y-intercept value of the straight line should be readjusted. Adjusting the slope of can minimize the repetition of the adjustment.
- the color concentration adjustment as described with reference to FIGS. 25 to 29 and the tint adjustment as described with reference to FIGS. 30 to 34 may be performed.
- the steps of accurately setting luminance by performing brightness adjustment and contrast adjustment must be performed before the color can be accurately set according to the color density adjustment and the tint adjustment.
- the color adjusted based on the luminance that is, the color density and the tint, may be set incorrectly.
- the sharpness adjustment more specifically, the horizontal sharpness and the vertical sharpness adjustment as described with reference to FIGS. 35 to 37 may be performed.
- the adjustment for the sharpness is divided into the adjustment for the luminance and the adjustment for the color, it is advantageous to adjust the sharpness after adjusting the luminance and the color level.
- the sharpness adjustment may be performed after the brightness adjustment and the contrast adjustment.
- the sharpness is adjusted by displaying patterns having only luminance components.
- the backlight brightness adjustment as described with reference to FIG. 38 may be performed.
- the backlight brightness adjustment is performed in advance of other image quality item adjustments, for example, if the user sets the brightness of the backlight to a lower value, the brightness or color separation in the following brightness, contrast, color density, tint adjustment and sharpness adjustment, etc.
- the power may drop, and thus, it may be difficult for the user to visually distinguish the difference in brightness or color between the displayed pattern or some areas of the pattern.
- test pattern 910 for adjusting the brightness of the backlight may be displayed in a size corresponding to the entire screen area, and the plurality of image quality adjustment items performed by the final step during the image quality adjustment may be performed. You can see the final adjustment results for full screen.
- 39 illustrates an embodiment of a user interface for receiving an external input from a user, and selecting an external input to which an adjustment value set by a screen adjustment method according to an embodiment of the present invention is applied. It shows a display screen for.
- an external input selection window for selecting an external input to which the settings by the image quality adjustment are completed 1000 may be displayed on the display screen 200.
- the user may select at least one of the plurality of external inputs displayed on the external input selection window 1000 to select an external input to which the setting items according to the image quality adjustment previously performed are applied.
- the user may select one or more external inputs to which the setting items are applied among the plurality of external inputs displayed on the external input selection window 1000 by using the direction key 1020 and the "MARK" button 1040.
- the setting item may be applied to the selected external input by pressing the “ ⁇ ” button 1030.
- one or more external inputs among the plurality of external inputs displayed on the external input selection window 1000 may be preselected as external inputs to which the setting items are applied.
- DTV or "HDMI” external inputs that provide high quality images may be preselected as external inputs to which adjustment values set to the standard image quality as described above are applied.
- An external input that provides an image signal before performing image quality adjustment may also be preselected as an external input to which the above setting is to be applied.
- the user selects the corresponding external input using the direction key 1020 and then uses the "MARK" button 1040 to select the external input. You can deselect it.
- the above-described image quality adjusting method and pattern display method therefor may be stored in a computer-readable recording medium that is produced as a program to be executed in a computer
- examples of the computer-readable recording medium include ROMs, RAMs, CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and the like, and also include those implemented in the form of carrier waves (eg, transmission over the Internet).
- the computer readable recording medium can be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.
- functional programs, codes, and code segments for implementing the broadcast reception method may be easily inferred by programmers in the art to which the present invention belongs.
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Abstract
Description
Claims (86)
- 영상 표시 장치의 화질을 조정하는 방법에 있어서,제1 패턴 및 제2 패턴을 디스플레이하는 단계;조정값을 입력받는 단계; 및상기 입력된 조정값에 따라, 상기 제1 패턴이 디스플레이되는 상태를 변화시키는 단계를 포함하고,상기 제2 패턴의 디스플레이 상태는 상기 조정값에 따라 변화되지 않는 화질 조정 방법.
- 제1항에 있어서,영상 신호를 디스플레이하는 단계를 더 포함하고,상기 영상 신호의 디스플레이 상태 및 상기 제1 패턴의 디스플레이 상태는 상기 조정값의 변화에 따라 동시에 변화되는 화질 조정 방법.
- 제1항에 있어서,상기 제1, 2 패턴은 상기 영상 표시 장치 내부에 저장되는 화질 조정 방법.
- 제1항에 있어서,상기 제1, 2 패턴은 서로 상이한 영상 처리 과정을 거친 후 디스플레이되는 화질 조정 방법.
- 제1항에 있어서, 상기 디스플레이 상태는상기 패턴이 화면 상에 디스플레이되는 밝기, 컨트라스트, 색농도, 틴트, 선명도 및 백라이트 밝기 중 하나를 포함하는 화질 조정 방법.
- 제1항에 있어서,상기 제2 패턴은 서로 상이한 복수의 이미지들을 포함하는 화질 조정 방법.
- 제6항에 있어서,상기 복수의 이미지들은 표준 이미지 및 적어도 하나의 예시 이미지를 포하는 화질 조정 방법.
- 제6항에 있어서,상기 입력된 조정값이 제1 값을 가지는 경우, 상기 제1 패턴과 상기 제2 패턴의 표준 이미지는 화면 상에 디스플레이되는 상태가 시각적으로 일치하는 화질 조정 방법.
- 제8항에 있어서,상기 조정값을 상기 제1 값으로 설정하는 단계를 더 포함하는 화질 조정 방법.
- 제6항에 있어서,상기 입력된 조정값이 제2 값을 가지는 경우, 상기 제1 패턴과 상기 제2 패턴의 예시 이미지는 화면 상에 디스플레이되는 상태가 시각적으로 일치하는 화질 조정 방법.
- 제1항에 있어서,복수의 화질 항목들에 대해 순차적으로 화질 조정을 수행하는 화질 조정 방법.
- 제11항에 있어서,상기 복수의 화질 항목들 중 밝기(brightness), 컨트라스트(contrast)의 순서로 화질 조정을 수행하는 화질 조정 방법.
- 제11항에 있어서,상기 복수의 화질 항목들 중 밝기(brightness), 컨트라스트(contrast), 색농도(color), 틴트(tint)의 순서로 화질 조정을 수행하는 화질 조정 방법.
- 제11항에 있어서,상기 복수의 화질 항목들 중 밝기(brightness), 컨트라스트(contrast), 색농도(color), 틴트(tint), 선명도(sharpness), 백라이트(backlight) 밝기의 순서로 화질 조정을 수행하는 화질 조정 방법.
- 제11항에 있어서,상기 복수의 화질 항목들 각각에 대하여, 화질 조정시 디스플레이되는 상기 제1 패턴이 상이한 화질 조정 방법.
- 제15항에 있어서,상기 복수의 화질 항목들 각각에 대하여, 화질 조정시 디스플레이되는 상기 제1 패턴의 밝기, 컨트라스트, 색농도, 틴트, 선명도, 백라이트 밝기, 형상 및 크기 중 적어도 하나가 상이한 화질 조정 방법.
- 제15항에 있어서,상기 복수의 화질 항목들은 제1 항목 및 제2 항목을 포함하고,상기 제1 항목의 화질 조정시 디스플레이되는 상기 제1 패턴과 상기 제2 항목의 화질 조정시 디스플레이되는 상기 제1 패턴은 상기 제1 항목에 대응되는 화질의 상태가 상이한 화질 조정 방법.
- 제15항에 있어서,상기 복수의 화질 항목들은 제1 항목, 제2 항목 및 제3 항목을 포함하고,상기 제1 항목의 화질 조정시 디스플레이되는 상기 제1 패턴과 상기 제2 항목의 화질 조정시 디스플레이되는 상기 제1 패턴은 상기 제3 항목에 대응되는 화질의 상태가 동일한 화질 조정 방법.
- 제11항에 있어서,상기 복수의 화질 항목들 각각에 대하여, 화질 조정시 디스플레이되는 상기 제2 패턴이 상이한 화질 조정 방법.
- 제19항에 있어서,상기 복수의 화질 항목들 각각에 대하여, 화질 조정시 디스플레이되는 상기 제2 패턴의 밝기, 컨트라스트, 색농도, 틴트, 선명도 및 백라이트 밝기 중 적어도 하나가 상이한 화질 조정 방법.
- 제11항에 있어서,상기 복수의 화질 항목들 중 제1 항목의 화질 조정시, 상기 제1 패턴이 디스플레이되는 상태는 상기 제1 항목에 대응되는 화질의 상태만이 변화되는 화질 조정 방법.
- 제11항에 있어서,상기 복수의 화질 항목들 중 제1 항목의 화질 조정시, 상기 제1 항목을 제외한 나머지 항목들에 대응되는 조정값은 변화되지 않는 화질 조정 방법.
- 제1항에 있어서,상기 제1, 2 패턴을 디스플레이하는 단계 이후에, 사용자로부터 조정값을 설정받는 단계를 더 포함하는 화질 조정 방법.
- 제23항에 있어서, 상기 설정되는 조정값은상기 제1, 2 패턴의 디스플레이 상태가 시각적으로 일치하는 시점에서 입력된 조정값인 화질 조정 방법.
- 제23항에 있어서,상기 설정된 조정값을 적용할 외부 입력을 선택받는 단계를 더 포함하는 화질 조정 방법.
- 제1항에 있어서,상기 제1 패턴은 밝기가 서로 상이한 복수의 영역들을 포함하는 화질 조정 방법.
- 제26항에 있어서,상기 제1 패턴에 포함된 복수의 영역들이 적어도 두 영역의 밝기가 시각적으로 일치하는지 여부에 따라, 사용자로부터 조정값을 설정받는 화질 조정 방법.
- 제26항에 있어서,상기 제2 패턴은 밝기가 서로 상이한 n개의 영역들로 구성된 표준 이미지를 포함하는 화질 조정 방법.
- 제28항에 있어서,상기 제1 패턴에 포함된 복수의 영역들 중 상기 n개의 영역이 서로 상이한 밝기로 디스플레이되는 경우, 해당 시점에서 입력된 조정값을 설정하는 단계를 더 포함하는 화질 조정 방법.
- 제29항에 있어서, 상기 복수의 영역들의 개수는 상기 n보다 작은 화질 조정 방법.
- 제28항에 있어서,상기 제2 패턴은 1 이상의 예시 이미지를 더 포함하고,상기 예시 이미지는 밝기가 균일한 하나의 영역으로 구성되거나 또는 밝기가 서로 상이한 m개(m은 n과 상이한 자연수)의 영역들을 포함하는 화질 조정 방법.
- 제26항에 있어서,밝기 조정 시, 상기 제1 패턴은 제1, 2, 3 영역을 포함하고,상기 제1 영역의 밝기는 0 IRE보다 큰 값을 가지고, 상기 제2 영역의 밝기는 O IRE이고, 상기 제3 영역의 밝기는 0 IRE보다 작은 값을 가지는 화질 조정 방법.
- 제32항에 있어서,상기 제2, 3 영역의 밝기가 시각적으로 일치하는 시점에서 입력된 조정값을 설정하는 단계를 더 포함하는 화질 조정 방법.
- 제26항에 있어서,컨트라스트 조정 시, 상기 제1 패턴은 제1, 2, 3 영역을 포함하고,상기 제1 영역의 밝기는 100 IRE보다 작은 값을 가지고, 상기 제2 영역의 밝기는 100 IRE이고, 상기 제3 영역의 밝기는 100 IRE보다 큰 값을 가지는 화질 조정 방법.
- 제34항에 있어서,상기 제2, 3 영역의 밝기가 시각적으로 일치하는 시점에서 입력된 조정값을 설정하는 단계를 더 포함하는 화질 조정 방법.
- 제1항에 있어서,상기 제1 패턴은 색이 서로 상이한 복수의 영역들을 포함하는 화질 조정 방법.
- 제36항에 있어서,상기 제1 패턴에 포함된 복수의 영역들 중 적어도 두 영역의 색이 시각적으로 일치하는지 여부에 따라, 사용자로부터 조정값을 설정받는 화질 조정 방법.
- 제36항에 있어서,상기 제2 패턴은 색이 균일한 표준 이미지 및 색이 서로 상이한 복수의 영역들을 포함하는 1 이상의 예시 이미지를 포함하는 화질 조정 방법.
- 제36항에 있어서,상기 복수의 영역들 중 제1 영역은 상기 입력된 조정값에 따라 디스플레이되는 색이 변화되지 아니하며, 제2 영역은 상기 조정값에 따라 디스플레이되는 색이 변화되는 화질 조정 방법.
- 제39항에 있어서,상기 제1 패턴의 제1 영역과 상기 제2 패턴은 서로 상이한 영상 처리 과정을 거친 후 디스플레이되는 화질 조정 방법.
- 제36항에 있어서, 상기 제1 패턴은레드(Red), 그린(Green), 블루(Blue) 중 제1 색상 만이 디스플레이되는 화질 조정 방법.
- 제41항에 있어서,상기 복수의 영역들 중 제1 영역의 색은 화이트(white)이며, 제2 영역의 색은 상기 제1 색상 만을 포함하는 화질 조정 방법.
- 제42항에 있어서,상기 제1 영역의 색과 상기 제2 영역의 색은 상기 제1 색상의 색농도가 서로 동일한 화질 조정 방법.
- 제41항에 있어서,상기 복수의 영역들 중 제1 영역의 색은 레드(Red), 그린(Green), 블루(Blue) 중 제1 색상 및 제2 색상만을 포함하고, 제2 영역은 상기 제1 색상 및 제3 색상을 포함하는 화질 조정 방법.
- 제44항에 있어서,상기 제1, 2 영역의 색은 각각 동일한 색농도를 가지는 시안(Cyan) 및 마젠타(Magenta)인 화질 조정 방법.
- 제41항에 있어서,상기 제1 색상은 블루인 화질 조정 방법.
- 제1항에 있어서,상기 제1 패턴은 수평 또는 수직 라인을 포함하는 화질 조정 방법.
- 제47항에 있어서,상기 라인이 선명하게 디스플레이되는지 여부에 따라, 사용자로부터 조정값을 설정받는 화질 조정 방법.
- 제47항에 있어서,상기 제2 패턴은 밝기가 균일한 하나의 라인이 표시된 표준 이미지를 포함하는 화질 조정 방법.
- 제47항에 있어서,상기 입력된 조정값에 따라, 영상 신호 중 고주파 대역에 곱해지는 가중치가 변화되는 화질 조정 방법.
- 제1항에 있어서,상기 입력된 조정값에 따라, 상기 제1 패턴이 디스플레이되는 화면의 밝기가 변화되는 화질 조정 방법.
- 제51항에 있어서,상기 제2 패턴은 표준 이미지 및 상기 표준 이미지와 화면 밝기가 상이한 1 이상의 예시 이미지를 포함하는 화질 조정 방법.상기 제1 패턴이 디스플레이되는 화면의 밝기와 상기 표준 이미지의 밝기가 시각적으로 일치하는 조정값을 설정하는 단계를 더 포함하는 화질 조정 방법.
- 제52항에 있어서,상기 제1 패턴이 디스플레이되는 화면의 밝기와 상기 표준 이미지의 밝기가 시각적으로 일치하는 조정값을 설정하는 단계를 더 포함하는 화질 조정 방법.
- 제51항에 있어서,상기 제1 패턴은 복수의 영역들로 분할되고, 상기 입력된 조정값에 따라 상기 분할된 영역별로 화면 밝기가 조절 가능한 화질 조정 방법.
- 영상 표시 장치의 화질을 조정하는 방법에 있어서,제1 패턴 및 제2 패턴을 디스플레이하는 단계; 및조정값을 입력받는 단계를 포함하고,상기 제1 패턴이 디스플레이되는 상태는상기 조정값이 변화함에 따라 상기 제2 패턴의 디스플레이 상태와 동일해지도록 변화되는 화질 조정 방법.
- 제55항에 있어서, 상기 디스플레이 상태는상기 패턴이 화면 상에 디스플레이되는 밝기, 컨트라스트, 색농도, 틴트, 선명도 및 백라이트 밝기 중 하나를 포함하는 화질 조정 방법.
- 제55항에 있어서,상기 제2 패턴은 1 이상의 이미지를 포함하고,상기 조정값이 변화함에 따라, 상기 제1 패턴과 상기 제2 패턴에 포함된 제1 이미지는 디스플레이되는 상태의 차이가 점진적으로 감소하는 화질 조정 방법.
- 제57항에 있어서,상기 조정값이 증가함에 따라, 상기 제1 패턴과 상기 제1 이미지는 디스플레이 되는 상태의 차이가 점진적으로 감소하는 화질 조정 방법.
- 제57항에 있어서,상기 제2 패턴은 제2 이미지를 더 포함하고,상기 조정값이 증가함에 따라, 상기 제1 패턴과 상기 제2 패턴에 포함된 제2 이미지는 디스플레이되는 상태의 차이가 점진적으로 증가하는 화질 조정 방법.
- 제57항에 있어서,상기 조정값이 제1 값을 초과하여 증가함에 따라, 상기 제1 패턴과 상기 제1 이미지는 디스플레이되는 상태의 차이가 점진적으로 증가하는 화질 조정 방법.
- 제60항에 있어서,상기 제2 패턴은 제2 이미지를 더 포함하고,상기 조정값이 상기 제1 값을 초과하여 증가함에 따라, 상기 제1 패턴과 상기 제2 이미지는 디스플레이되는 상태의 차이가 점진적으로 증가하는 화질 조정 방법.
- 제61항에 있어서,상기 제2 패턴은 제3 이미지를 더 포함하고,상기 조정값이 상기 제1 값을 초과하여 증가함에 따라, 상기 제1 패턴과 상기 제3 이미지는 디스플레이되는 상태의 차이가 점진적으로 감소하는 화질 조정 방법.
- 제62항에 있어서,상기 제2 패턴에 포함된 상기 제1, 2, 3 이미지는 특정 방향을 기준으로 순차적으로 배열되는 화질 조정 방법.
- 제1항에 있어서,상기 입력된 조정값을 나타내기 위한 조정값 표시 OSD를 디스플레이하는 단계를 더 포함하고,상기 조정값 표시 OSD는 가변 영역과 고정 영역을 포함하며, 상기 가변 영역은 상기 입력되는 조정값에 따라 가변 표시되는 화질 조정 방법.
- 제64항에 있어서,상기 제1 패턴의 디스플레이 상태는 상기 조정값 표시 OSD의 변화에 동기되어 변화되는 화질 조정 방법.
- 제65항에 있어서,상기 제2 패턴은 상기 제1 패턴의 제1 측에 인접하게 디스플레이되며,상기 제1 패턴의 디스플레이 상태는상기 조정값 표시 OSD의 상기 가변 영역이 상기 제1 측 방향으로 변화됨에 따라 상기 제2 패턴의 디스플레이 상태와 동일해지도록 변화되는 화질 조정 방법.
- 제55항에 있어서,상기 제1, 2 패턴의 디스플레이되는 상태가 시각적으로 일치하는 시점에서 입력된 조정값을 사용자로부터 설정받는 단계를 더 포함하는 화질 조정 방법.
- 제55항에 있어서,상기 제2 패턴의 디스플레이 상태는 상기 조정값에 따라 변화되지 않는 화질 조정 방법.
- 영상 표시 장치의 화질을 조정하는 방법에 있어서,제1 패턴 및 제2 패턴을 디스플레이하는 단계;조정값을 입력받는 단계; 및상기 입력된 조정값을 나타내기 위한 조정값 표시 OSD를 디스플레이하는 단계를 포함하고,상기 조정값 표시 OSD는 가변 영역과 고정 영역을 포함하며, 상기 가변 영역은 상기 입력되는 조정값에 따라 가변 표시되고,상기 제2 패턴은 복수의 이미지들을 포함하며,상기 제1 패턴이 디스플레이되는 상태는상기 조정값 표시 OSD의 상기 가변 영역이 제1 측 방향으로 변화됨에 따라 상기 제2 패턴에 포함된 이미지들 중 상기 제1 측에 위치하는 이미지의 디스플레이 상태와 동일해지도록 변화되는 화질 조정 방법.
- 제69항에 있어서, 상기 제1 패턴이 디스플레이되는 상태는상기 조정값 표시 OSD의 상기 가변 영역이 상기 제1 측 방향으로 변화됨에 따라 상기 제2 패턴에 포함된 이미지들 중 상기 제1 측에 위치하는 이미지의 디스플레이 상태와 동일해지도록 점진적으로 변화되는 화질 조정 방법.
- 제69항에 있어서,상기 제2 패턴은 제1 이미지 및 제2 이미지를 포함하고, 상기 제1 이미지는 상기 제2 이미지의 상기 제1 측에 인접하게 위치되며,상기 조정값 표시 OSD의 상기 가변 영역이 상기 제1 측 방향으로 변화됨에 따라, 상기 제1 패턴과 상기 제1 이미지는 디스플레이 상태의 차이가 점진적으로 감소하는 화질 조정 방법.
- 제71항에 있어서,상기 조정값 표시 OSD의 상기 가변 영역이 상기 제1 측 방향으로 변화됨에 따라, 상기 제1 패턴과 상기 제2 이미지는 디스플레이되는 상태의 차이가 점진적으로 증가하는 화질 조정 방법.
- 제72항에 있어서,상기 조정값 표시 OSD의 상기 가변 영역이 제1 위치를 지나 상기 제1 측 방향으로 변화됨에 따라, 상기 제1 패턴과 상기 제1 이미지는 디스플레이 상태의 차이가 점진적으로 증가하는 화질 조정 방법.
- 제73항에 있어서,상기 제2 패턴은 상기 제1 이미지의 상기 제1 측에 인접하게 위치된 제3 이미지를 더 포함하고,상기 조정값 표시 OSD의 상기 가변 영역이 상기 제1 위치를 지나 상기 제1 측 방향으로 변화됨에 따라, 상기 제1 패턴과 상기 제3 이미지는 디스플레이되는 상태의 차이가 점진적으로 감소하는 화질 조정 방법.
- 제60항에 있어서,상기 조정값 표시 OSD의 상기 가변 영역이 제1 위치에 위치함에 따라 상기 제1, 2 패턴의 디스플레이 상태가 시각적으로 일치하며,상기 가변 영역의 상기 제1 위치에 대응되는 조정값을 사용자로부터 설정받는 단계를 더 포함하는 화질 조정 방법.
- 제60항에 있어서,상기 제2 패턴의 디스플레이 상태는 상기 조정값에 따라 변화되지 않는 화질 조정 방법.
- 제1 패턴 및 제2 패턴을 저장하는 메모리;사용자로부터 조정값을 입력받는 사용자입력부;상기 입력된 조정값에 따라 상기 제1 패턴을 영상 처리하여 출력하는 신호처리부; 및상기 신호처리부로부터 입력되는 제1 패턴 및 상기 메모리에 저장된 제2 패턴을 표시하는 디스플레이부를 포함하는 영상 표시 장치.
- 제77항에 있어서,상기 제2 패턴은 상기 신호처리부에 의해 영상 처리되지 않는 영상 표시 장치.
- 제77항에 있어서, 상기 신호처리부는영상 복호화부, 화질 인헨서, CSC블록 및 감마 보정부 중 적어도 하나를 포함하는 영상 표시 장치.
- 제77항에 있어서,상기 제1 패턴은 소정의 영상 부호화 방식에 따라 압축되어 상기 메모리에 저장되는 영상 표시 장치.
- 제77항에 있어서,상기 제2 패턴은 R, G, B 영상 신호로 상기 메모리에 저장되는 영상 표시 장치.
- 제77항에 있어서, 상기 디스플레이부는상기 제1, 2 패턴을 합성하는 영상 합성부를 포함하는 영상 표시 장치.
- 제82항에 있어서,상기 제2 패턴은 상기 메모리로부터 상기 영상 합성부로 직접 입력되는 영상 표시 장치.
- 제77항에 있어서,상기 제1 패턴이 디스플레이되는 상태는 상기 입력되는 조정값에 따라 변화되며, 상기 제2 패턴의 디스플레이 상태는 상기 조정값에 따라 변화되지 않는 영상 표시 장치.
- 조정 메뉴를 포함하는 영상 표시 장치에 있어서,제1 영역에 디스플레이되는 영상;제2 영역에 디스플레이되는 제1 패턴;제3 영역에 디스플레이되는 제2 패턴;제4 영역에 디스플레이되는 조정값 표시 OSD를 포함하고,상기 조정값 표시 OSD는 가변 영역과 고정 영역을 포함하며, 상기 가변 영역은 입력되는 조정값에 따라 가변 표시되고,숫자 혹은 캐릭터 혹은 추상적인 정도의 표시 등을 통해 화질 요소의 값을 표시하되,상기 조정값의 변화에 따라서, 상기 제1 영역의 영상과 제2 영역의 제1 패턴이 변화되는 영상 표시 장치.
- 제85항에 있어서,상기 제1, 2, 3, 4 영역들 중 적어도 두 영역은 서로 오버랩되는 영상 표시 장치.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130016132A1 (en) * | 2011-07-15 | 2013-01-17 | Chunghwa Picture Tubes, Ltd. | Method for examining liquid crystal driving voltages in liquid crystal display device |
EP2464104A3 (en) * | 2010-12-13 | 2014-05-21 | Samsung Electronics Co., Ltd. | Image Processing Apparatus And User Interface Providing Method Thereof |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101992273B1 (ko) | 2012-10-22 | 2019-10-01 | 삼성디스플레이 주식회사 | 유기전계발광 표시장치 및 그 검사방법 |
KR102038655B1 (ko) * | 2012-10-22 | 2019-10-31 | 삼성디스플레이 주식회사 | 유기전계발광 표시장치의 감마설정패턴 및 이를 이용한 감마설정방법 |
KR20140085052A (ko) * | 2012-12-27 | 2014-07-07 | 삼성전자주식회사 | 디스플레이 장치 및 이의 제어 방법 |
TWI551114B (zh) * | 2014-09-30 | 2016-09-21 | 和碩聯合科技股份有限公司 | 多媒體介面檢測系統及檢測方法 |
US10365879B2 (en) | 2014-11-05 | 2019-07-30 | Lg Electronics Inc. | Image output device, mobile terminal, and method for controlling a plurality of image output devices |
CN104823217B (zh) * | 2014-11-28 | 2018-06-05 | 深圳市尊正数字视频有限公司 | 调色监视器以及实时调色方法 |
KR102545758B1 (ko) | 2016-09-12 | 2023-06-20 | 삼성전자주식회사 | 디스플레이 장치 및 그 제어 방법 |
CN108093251A (zh) * | 2017-12-25 | 2018-05-29 | 青岛海信电器股份有限公司 | 一种校正显示参数的方法、装置及显示器 |
KR102506919B1 (ko) * | 2018-03-14 | 2023-03-07 | 주식회사 엘엑스세미콘 | 테스트 기능을 갖는 디스플레이 구동 장치 및 이를 포함하는 디스플레이 장치 |
CN111063319B (zh) * | 2018-10-16 | 2021-05-18 | 深圳Tcl新技术有限公司 | 基于背光调整的图像动态增强方法、装置和计算机设备 |
WO2020122920A1 (en) * | 2018-12-13 | 2020-06-18 | Hewlett-Packard Development Company, L.P. | Customizable onscreen display reference points |
WO2021224195A1 (en) * | 2020-05-05 | 2021-11-11 | Interdigital Ce Patent Holdings | Audio/visual display control |
KR20220019466A (ko) * | 2020-08-10 | 2022-02-17 | 삼성전자주식회사 | 디스플레이 장치 및 이의 제어 방법 |
US20230418062A1 (en) * | 2022-06-23 | 2023-12-28 | Snap Inc. | Color calibration tool for see-through augmented reality environment |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4694298A (en) * | 1983-11-04 | 1987-09-15 | Itt Gilfillan | Adaptive, fault-tolerant narrowband filterbank |
JP2914227B2 (ja) * | 1995-07-11 | 1999-06-28 | 富士ゼロックス株式会社 | 画像処理装置および画像処理方法 |
JP3467150B2 (ja) * | 1996-05-14 | 2003-11-17 | ブラザー工業株式会社 | 表示特性設定装置 |
JPH09305152A (ja) * | 1996-05-16 | 1997-11-28 | Brother Ind Ltd | ディスプレイのブラックポイント決定方法及び決定装置 |
JP2001045527A (ja) * | 1999-07-15 | 2001-02-16 | Internatl Business Mach Corp <Ibm> | 表示画面のカラー調整方法及びそれに用いる装置 |
JP2001036844A (ja) * | 1999-07-16 | 2001-02-09 | Nec Corp | 画質確認装置、画質確認方法及びそのプログラムを記録した記録媒体 |
JP4368513B2 (ja) | 1999-12-27 | 2009-11-18 | 富士フイルム株式会社 | 画像処理方法および装置並びに記録媒体 |
JP2001268475A (ja) * | 2000-03-15 | 2001-09-28 | Sony Corp | 画質調整方法および画質調整装置 |
JP3701204B2 (ja) * | 2001-01-18 | 2005-09-28 | キヤノン株式会社 | 画質調整機能を有する画像表示装置および画像表示方法、並びに記録媒体 |
US7602991B2 (en) * | 2001-10-24 | 2009-10-13 | Nik Software, Inc. | User definable image reference regions |
JP4853024B2 (ja) * | 2003-06-16 | 2012-01-11 | 大日本印刷株式会社 | カラーモニタの階調再現特性測定装置 |
EP1655951A4 (en) | 2003-07-22 | 2007-03-28 | Seiko Epson Corp | ADJUSTING THE TONE OF MONOCHROME IMAGES |
JP2005142680A (ja) * | 2003-11-04 | 2005-06-02 | Olympus Corp | 画像処理装置 |
KR100628099B1 (ko) | 2005-01-20 | 2006-09-26 | 엘지전자 주식회사 | 영상표시장치 및 그의 밝기 조절방법 |
KR100609923B1 (ko) | 2005-03-08 | 2006-08-08 | 삼성전자주식회사 | 디스플레이장치 |
TW200701179A (en) * | 2005-06-17 | 2007-01-01 | Mitac Technology Corp | Method of adjusting brightness and system using the same |
KR100705068B1 (ko) * | 2005-09-22 | 2007-04-06 | 엘지전자 주식회사 | 영상 설정 제어방법 |
KR100774008B1 (ko) | 2005-10-24 | 2007-11-08 | 삼성전자주식회사 | 디스플레이장치 및 그 제어방법 |
KR100896178B1 (ko) * | 2006-04-11 | 2009-05-12 | 삼성전자주식회사 | 테스트 패턴 발생 회로를 포함하는 액정 표시 장치의 구동회로 |
WO2008015751A1 (en) | 2006-08-03 | 2008-02-07 | Pioneer Corporation | Image display device causing display means to display an image based on processed image data obtained by subjecting predetermined image data to a predetermined process, image processing device, image display control method, its program, and recording medium recorded by the program |
JP4948999B2 (ja) | 2006-12-08 | 2012-06-06 | シャープ株式会社 | 調整パラメータの設定方法及び表示装置 |
US8218903B2 (en) * | 2007-04-24 | 2012-07-10 | Sony Computer Entertainment Inc. | 3D object scanning using video camera and TV monitor |
-
2009
- 2009-10-01 WO PCT/KR2009/005652 patent/WO2010039005A2/ko active Application Filing
- 2009-10-01 CN CN200980144387.5A patent/CN102210145B/zh active Active
- 2009-10-01 US US13/122,284 patent/US8711187B2/en active Active
- 2009-10-01 EP EP09818015A patent/EP2348705A4/en not_active Ceased
- 2009-10-01 KR KR1020117006085A patent/KR101612979B1/ko active IP Right Grant
Non-Patent Citations (2)
Title |
---|
None |
See also references of EP2348705A4 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2464104A3 (en) * | 2010-12-13 | 2014-05-21 | Samsung Electronics Co., Ltd. | Image Processing Apparatus And User Interface Providing Method Thereof |
US20130016132A1 (en) * | 2011-07-15 | 2013-01-17 | Chunghwa Picture Tubes, Ltd. | Method for examining liquid crystal driving voltages in liquid crystal display device |
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WO2010039005A3 (ko) | 2010-06-17 |
EP2348705A2 (en) | 2011-07-27 |
US8711187B2 (en) | 2014-04-29 |
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EP2348705A4 (en) | 2012-04-25 |
US20110234654A1 (en) | 2011-09-29 |
KR101612979B1 (ko) | 2016-04-15 |
CN102210145B (zh) | 2014-12-10 |
KR20110066145A (ko) | 2011-06-16 |
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