JP4725255B2 - Image display device, projector, parameter set selection method, and parameter set storage method - Google Patents

Description

  The present invention relates to an image display device and a projector capable of adjusting a display state of an image to be displayed.

  Many image display apparatuses that display an image based on an image signal allow a user to perform image quality adjustment by setting parameters representing the brightness, contrast, hue, and the like of the image. The user can set these parameters as appropriate according to the type of image (still image, moving image), the content (movie, sports, news, etc.), the viewing environment such as the brightness of the room, and the like. However, every time the image or viewing environment changes, a parameter setting operation is required. Therefore, the larger the number of parameters to be set, the more complicated the operation is.

  In order to reduce the complexity of the above work, it is possible to store (register) a set of various parameter combinations (parameter sets) in the memory and register them when the image or viewing environment changes. There has been proposed an image display device (projector) in which various parameters can be easily set by calling a desired parameter set from among a plurality of parameter sets (see, for example, Patent Documents 1 and 2). Each parameter set registered in the memory is added with an identifier (A, B, C,... Or a heading such as “Memory 1”, “Memory 2”,...), And a desired parameter set is selected. In this case, any one of a plurality of identifiers is designated.

JP 2003-295321 A JP-A-2005-99620

  However, since the identifier itself does not include information indicating the contents (parameters) of the registered parameter set, it is difficult to know the registered contents only by the identifier. In order to know the registered contents, it is necessary to call one parameter set once and confirm the subsequent change in image quality, confirm each parameter on the parameter setting screen, etc. If the recalled parameter set was not the desired one, the above operation (calling the parameter set and its confirmation) had to be repeated. That is, there is a problem that it is difficult to specify a desired one from a plurality of parameter sets when calling a registered parameter set. Similarly, when registering a parameter set, it is difficult to check the contents of the registered parameter set, so the number of parameter sets that can be registered is limited due to memory capacity restrictions. There is a problem that a plurality of the same or similar parameter sets are registered.

  The present invention has been made in view of the above problems, and a first object thereof is to improve convenience when selecting a desired parameter set from among a plurality of parameter sets when a parameter set is called. An object of the present invention is to provide an image display device capable of performing the above. A second object of the present invention is to provide an image display device and a projector that can easily confirm the setting contents of a registered parameter set when the parameter set is registered.

  An image display device of the present invention is an image display device that adjusts and displays an image based on a parameter set composed of a plurality of parameters, and stores a plurality of sets of the parameter sets, and is stored in the storage unit. A selection unit that selects a desired set from the plurality of parameter sets, and a parameter set selected by the selection unit are acquired, and the display state of the image is adjusted based on the parameter set. An image adjustment unit, and the selection unit selects a parameter included in the currently used parameter set and a parameter included in the parameter set stored in the storage unit when the one parameter set is selected. Is displayed.

  According to this image display apparatus, when the selection unit selects a desired one from a plurality of parameter sets stored in the storage unit, the parameters included in the currently used parameter set, the storage unit, Since the parameters included in the parameter set stored in are displayed, the parameters included in both parameter sets can be compared. By this comparison, it becomes easy to predict the display state when each parameter set stored in the storage means is used, and convenience when selecting a desired one from a plurality of parameter sets is improved. To do.

  In this image display device, the selection unit selects the one set of parameter sets based on the image adjusted based on the currently used parameter set and the parameter set stored in the storage unit. It is desirable to display the adjusted image.

  According to this image display apparatus, when the selection unit selects a desired one from a plurality of parameter sets stored in the storage unit, an image adjusted based on the currently used parameter set, The image adjusted based on the parameter set stored in the storage means is displayed. In other words, the display state when using the parameter set stored in the storage means can be confirmed by looking at the actual image, and can be compared with an image based on the parameter set currently in use. Convenience when selecting a desired set from the set of parameter sets is further improved.

  In this image display device, it is preferable that the selection unit simultaneously displays an image adjusted based on a currently used parameter set and an image adjusted based on a parameter set stored in the storage unit. .

  According to this image display apparatus, when the selection unit selects a desired one from a plurality of parameter sets stored in the storage unit, an image adjusted based on the currently used parameter set, Since the images adjusted based on the parameter set stored in the storage means are displayed at the same time, it is easy to compare the two.

  The image display device of the present invention is an image display device that adjusts and displays an image based on a parameter set composed of a plurality of parameters, and can store a plurality of sets of parameter sets and parameter changing means for changing the parameters. Storage means and a registration means for storing the parameter set including the parameter changed by the parameter change means in the storage means, and the registration means before storing the parameter set in the storage means, The parameters included in the parameter set and the parameters included in the parameter set already stored in the storage unit are displayed.

  According to this image display device, before the registration unit stores the parameter set in the storage unit, the parameter included in the parameter set to be stored, and the parameter included in the parameter set already stored in the storage unit, Is displayed, it is possible to compare parameters included in both parameter sets. As a result, it becomes easy to confirm whether or not a parameter set that is the same or similar to the parameter set that is to be stored is already stored, and it is possible to suppress storing a plurality of the same or similar parameter sets. Is possible.

  In this image display device, the registration unit may be configured to store an image adjusted based on the parameter set and a parameter set already stored in the storage unit before storing the parameter set in the storage unit. It is desirable to display the adjusted image.

  According to this image display device, the registration unit is configured to store an image adjusted based on the parameter set to be stored before storing the parameter set in the storage unit and the parameter set already stored in the storage unit. And the adjusted image. As a result, both parameter sets can be compared by looking at an actual image, so that it is further easier to check whether the same or similar parameter set is already stored.

  In this image display device, it is preferable that the registration unit simultaneously displays an image adjusted based on the parameter set and an image adjusted based on the parameter set already stored in the storage unit.

  According to this image display device, the registration unit is configured to store an image adjusted based on the parameter set to be stored before storing the parameter set in the storage unit and the parameter set already stored in the storage unit. Since the adjusted images are displayed at the same time, it is easy to compare them.

  The projector according to the present invention functions as the image display device described above.

  Since projectors can display images on a large screen, they are increasingly used for movie appreciation in recent years. For this reason, it is required that fine image quality adjustment is possible for an image, and there is a growing need for easily registering and calling parameters for performing image quality adjustment. According to the projector of the present invention, the above-described needs can be satisfied because the projector has the same effect as the image display device described above.

(First embodiment)
Hereinafter, an image display apparatus according to a first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram illustrating a schematic configuration of a projector that is an image display apparatus according to the present embodiment.
The projector 1 modulates light emitted from a light source according to an image signal input from the outside to form an optical image, and enlarges and projects the formed optical image on a screen.

  As shown in FIG. 1, the projector 1 includes a projection unit 10 that projects an image. The projection unit 10 includes a light source 11 including a discharge type light source lamp such as an ultra-high pressure mercury lamp or a metal halide lamp, a liquid crystal light valve 12 as a light modulation device, a projection lens 13, and a light valve driving unit 14. .

  The liquid crystal light valve 12 is formed with a plurality of pixels, and the light valve driving unit 14 drives the liquid crystal light valve 12 based on the input image signal. Each pixel is modulated by the bulb 12 to form an optical image corresponding to the image signal. The formed optical image is enlarged and projected toward the screen SC or the like by the projection lens 13 and displayed as an image on the screen SC.

  Although not shown, a light separation optical system that separates light source light into three color (red, green, and blue) color lights R, G, and B in an optical path between the light source 11 and the liquid crystal light valve 12. Are arranged, and the liquid crystal light valves 12 are used in groups of three in order to modulate the separated color lights R, G, and B, respectively. In addition, a light combining optical system such as a cross dichroic prism that combines the modulated color lights R, G, and B is disposed in the optical path between the liquid crystal light valve 12 and the projection lens 13. An image is emitted from the projection lens 13.

  The projector 1 further includes a control unit 20, a storage unit 21, an input operation unit 22, a remote control signal reception unit 23, an input terminal CN, an image data processing unit 25, an image memory 26, and an OSD processing unit 27. An OSD memory 28 and a remote controller RC.

  The control unit 20 is configured by a CPU (Central Processing Unit) or the like and functions as a computer. The control unit 20 is connected to each of the units 21 to 23, 25, and 27, and is stored in the storage unit 21 according to a control program. The overall operation of the projector 1 is controlled.

  The storage unit 21 corresponds to the storage unit of the present invention, and is configured by a memory such as a flash ROM (Read Only Memory). The storage unit 21 stores the control program and is used for storing various setting values (parameters).

  The input operation unit 22 and the remote controller RC include a plurality of keys for performing various operations on the projector 1. Keys provided in the input operation unit 22 and the remote controller RC include a power key for turning on / off the power, a menu key (“Menu”) for switching display / non-display of a menu image for performing various settings, a menu Direction keys (four keys “↑”, “↓”, “→”, “←”) used to move the cursor on the image, etc.), and enter keys (instructions for selecting items on the menu image) “Sel”), a cancel key (“ESC”) for instructing cancellation of the operation, and the like. When the user operates the input operation unit 22, the input operation unit 22 outputs an operation signal corresponding to the operation content of the user to the control unit 20. When the user operates the remote controller RC, the remote controller RC emits an infrared operation signal corresponding to the user's operation content, and the remote control signal receiving unit 23 receives this and transmits it to the control unit 20.

  The input terminal CN can receive various types of image signals from an external image supply device (not shown) such as a video playback device or a personal computer, and the input image signals are supplied to the image data processing unit 25. Is done.

  The image data processing unit 25 converts the image signals of various formats supplied from the input terminal CN into image data composed of gradation values for each color (R, G, B). Further, a plurality of parameters (parameter set) for adjusting the image quality (display state) are input from the control unit 20, and brightness, contrast, sharpness, and hue are converted for the converted image data based on the parameter set. Etc. and various image quality adjustments such as gamma correction. That is, the image data processing unit 25 functions as an image adjustment unit of the present invention. The image memory 26 is used for temporary storage or the like during the image quality adjustment processing by the image data processing unit 25, and can store image data for a plurality of frames (a plurality of screens). The image data whose image quality has been adjusted by the image data processing unit 25 is output to the OSD processing unit 27.

  The OSD processing unit 27 performs processing for superimposing an OSD (on-screen display) image including a menu image, a message image, and the like on an input image (an image based on the input image signal) based on an instruction from the control unit 20. Do. The OSD memory 28 stores image data representing graphics, fonts, and the like for forming an OSD image. When the control unit 20 outputs OSD image information that can identify the OSD image to the OSD processing unit 27, The OSD processing unit 27 reads out necessary image data from the OSD memory 28 and generates OSD image data. Further, the OSD processing unit 27 synthesizes the OSD image data with the input image data (image data based on the input image signal) so that the OSD image is superimposed at a predetermined position of the input image. The synthesized image data is output to the light valve driving unit 14. Note that when the OSD image is not displayed, the above synthesis processing is not performed, so that the image data output from the image data processing unit 25 is supplied to the light valve driving unit 14 as it is.

  When the light valve driving unit 14 drives the liquid crystal light valve 12 based on the image data input from the OSD processing unit 27, the input image is displayed on the screen SC, and if necessary, the input image is displayed on the input image. An OSD image is superimposed on the screen.

Next, the operation of the projector 1 according to this embodiment will be described.
FIG. 2 is an explanatory diagram for explaining the menu image superimposed by the OSD processing unit 27 and is projected on the screen SC when the menu key (“Menu”) of the input operation unit 22 or the remote controller RC is operated. Represents an image.
When the menu key (“Menu”) of the input operation unit 22 or the remote controller RC is operated while the input image Gs is displayed, the control unit 20 performs OSD processing on OSD image information for displaying the menu image. To the unit 27. The OSD processing unit 27 reads out OSD image data representing a menu image from the OSD memory 28 based on the OSD image information and synthesizes it with input image data. As a result, as shown in FIG. 2, the input image Gs and the OSD image (process selection menu image Gm0) superimposed on the input image Gs are displayed on the screen SC.

  In the process selection menu image Gm0, a plurality of item names (“image quality”, “setting”, “memory”, etc.) are listed, and one item (“image quality” in FIG. 2) is temporarily selected. (The background color is different from the other items). The user can change the temporarily selected item by operating the input operation unit 22 or the up / down direction key (“↑” or “↓”) of the remote controller RC, and temporarily select a desired item. When the determination key (“Sel”) is operated after the setting, information related to the item, information browsing, and the like can be performed. Here, when “image quality” is selected from the menu items (the decision key is operated after temporary selection), the control unit 20 instructs the OSD processing unit 27 to create a new OSD image (image image for adjusting image quality). ) Is superimposed on the input image Gs. The user can set a parameter for performing image quality adjustment according to preference on the input image Gs by using the OSD image.

FIG. 3 is an explanatory diagram showing an OSD image that is displayed when image quality adjustment is performed, and represents an image quality adjustment menu image that is displayed superimposed on the input image Gs.
As shown in FIG. 3, the image quality adjustment menu image Gm1 includes 6 items of “color mode”, “brightness”, “contrast”, “color density”, “color shade”, and “sharpness (outline enhancement)”. Two adjustment item names are displayed side by side in the vertical direction, and the respective set values (parameters) are written on the right side of each adjustment item name.

  The “color mode” is an item for setting a color tone, brightness, and the like according to the type and content of an image, a viewing environment, and the like. The parameters include, for example, “dynamic” suitable for viewing in a bright environment, “living” suitable for viewing in low light, “natural” capable of reproducing an image faithful to an input signal in a dark environment, There is a “theater” suitable for watching a movie in a dark environment, and the user can select from these according to the image, viewing environment, and the like. The parameters of each item of “Brightness”, “Contrast”, “Saturation”, “Hue” and “Sharpness” are expressed numerically, and within a predetermined range (several to tens of steps) Each degree can be finely adjusted by increasing or decreasing.

  The user operates the up and down direction keys (“↑” and “↓”) while temporarily displaying the image quality adjustment menu image Gm1, and then operates the enter key (“Sel”) after temporarily selecting a desired item. By doing so, the parameter of the item can be changed. Here, when “color mode” is selected, the control unit 20 instructs the OSD processing unit 27 to superimpose and display the color mode selection menu image Gm2 (see FIG. 4). Let the user select one of the color modes. The user can select a desired color mode using the up / down direction keys (“↑”, “↓”) and the enter key (“Sel”). In addition, when an item other than “color mode” is selected while the image quality adjustment menu image Gm1 is displayed, the control unit 20 instructs the OSD processing unit 27 to perform a numerical adjustment menu image. Gm3 (see FIG. 5) is displayed, and the user adjusts the numerical value. The user can increase / decrease the numerical value with the left / right direction keys (“←”, “→”).

  When the parameters are changed by the above procedure, the control unit 20 outputs a parameter set including all parameters to the image data processing unit 25. Based on the parameter set, the image data processing unit 25 starts image quality adjustment for input image data, such as data conversion using a LUT (Look Up Table) and filter processing using a digital filter.

  When the cancel key (“ESC”) is operated in a state where any of the menu images Gm0 to Gm3 is displayed, the control unit 20 instructs the OSD processing unit 27 to superimpose the menu image Gm0 to Gm3. The menu image is erased and the display is returned to the previous display screen (the same applies to menu images Gm4 to Gm6 described later). For example, if the color mode selection menu image Gm2 or the numerical adjustment menu image Gm3 is displayed, the screen returns to the screen state where the image quality adjustment menu image Gm1 is displayed, and the image quality adjustment menu image Gm1 is displayed. If it is, the screen returns to the screen on which the process selection menu image Gm0 is displayed. If the menu image for processing selection Gm0 is displayed, the menu image is not displayed and the input image Gs is returned to a viewable state. When the menu key (“Menu”) is operated in a state where any one of the menu images Gm0 to Gm3 is displayed, the control unit 20 instructs the OSD processing unit 27 to superimpose the menu key. The menu image is deleted and the input image Gs can be viewed (the same applies to menu images Gm4 to Gm6 described later).

  Returning to FIG. 2, the user selects “memory” in the state where the process selection menu image Gm0 is displayed, thereby storing the currently used parameter set in the storage unit 21 (registration). The parameter set stored in the storage unit 21 can be read out and used (called).

FIG. 6 is an explanatory diagram showing an OSD image displayed when registering or calling a parameter set.
When “memory” is selected in the process selection menu image Gm0, the control unit 20 instructs the OSD processing unit 27 to input an OSD image (memory operation menu image Gm4) as shown in FIG. It is displayed superimposed on Gs.

  In the memory operation menu image Gm4, “memory registration” for registering parameter sets, “memory call” for recalling already registered parameter sets, and all already registered parameter sets are deleted. Three items of “memory initialization” to return to the initial state are listed, and the user operates one of the up and down direction keys (“↑”, “↓”) and the enter key (“Sel”). Items can be selected. Here, when “memory registration” is selected, the control unit 20 instructs the OSD processing unit 27 to superimpose an OSD image (memory registration menu image) for registering the parameter set on the input image Gs. To display.

FIG. 7 is an explanatory diagram showing an OSD image displayed when registering a parameter set.
As shown in FIG. 7, the memory registration menu image Gm5 includes a selection area Gm5a, a registered parameter display area Gm5b, a current parameter display area Gm5c, and the like. In the present embodiment, it is possible to store six parameter sets in the storage unit 21, and the identifiers (Gm5a) of the memory registration menu image Gm5 are each associated with an identifier (corresponding to the six parameter sets). "Memory 1" to "Memory 6") are listed in the vertical direction. A mark M indicating the registration status is attached to the left side of each identifier, and whether or not a parameter set has been registered for each identifier can be determined by the color of the mark M (for example, registered for black) , White is unregistered).

  One of the six identifiers is temporarily selected, and the user can temporarily select another identifier by operating the up and down direction keys (“↑”, “↓”). . After temporarily selecting an unregistered identifier, the user operates the enter key (“Sel”) to store the currently used parameter set in the storage unit 21 in association with the temporarily selected identifier. Can do.

  On the other hand, it is possible to overwrite and store the parameter set currently in use with respect to an identifier for which another parameter set has already been registered. When an identifier for which another parameter set has already been registered is temporarily selected, the control unit 20 reads the parameter set from the storage unit 21 and instructs the OSD processing unit 27 to specify each adjustment item name and each of the adjustment item names. The parameters are displayed side by side in the registered parameter display area Gm5b. Further, in the current parameter display area Gm5c, the parameters included in the currently used parameter set to be registered are displayed side by side so that they can be compared with the registered parameters for each item.

  As a result, the user can compare the current parameter set to be registered with the already registered parameter set to determine the sameness or similarity, and the same parameter set has already been found. By canceling registration when registered, or by overwriting when a similar parameter set has already been registered, useless registration can be suppressed. When the user operates the enter key (“Sel”) after provisionally selecting a desired identifier, the control unit 20 stores the parameter set currently in use in the storage unit 21 in association with the temporarily selected identifier. Let

  Even when an unregistered identifier is provisionally selected, it is desirable to display each adjustment item name in the registered parameter display area Gm5b and to display the parameter currently in use in the current parameter display area Gm5c.

  Returning to FIG. 6, when “call memory” is selected while the memory operation menu image Gm4 is displayed, the control unit 20 instructs the OSD processing unit 27 to register the registered parameter set. An OSD image for calling (memory call menu image) is displayed.

FIG. 8 is an explanatory diagram showing an OSD image displayed when a parameter set is called.
As shown in FIG. 8, the memory call menu image Gm6 includes a selection area Gm6a, a registered parameter display area Gm6b, a current parameter display area Gm6c, and the like. In the selection area Gm6a, six identifiers ("Memory 1" to "Memory 6") are listed in the vertical direction, and one of them is temporarily selected. Among the six identifiers, identifiers for which parameter sets are not registered (“memory 3” and “memory 6”) cannot be temporarily selected, and are inconspicuous colors compared to other identifiers. It is displayed.

  When the user temporarily selects any one of the identifiers in which the parameter set is registered by operating the up / down direction keys (“↑”, “↓”), the control unit 20 stores the parameter set in the storage unit. 21, the OSD processing unit 27 is instructed to display each adjustment item name and each parameter side by side in the registered parameter display area Gm6b. Further, in the current parameter display area Gm6c, the parameters included in the currently used parameter set are displayed side by side so that they can be compared with the registered parameters for each item.

  This allows the user to adjust the image quality based on the registered parameter set by comparing the currently used parameter set with the registered parameter set to be called and recognizing the differences. In this case, it is easy to predict the display state, and convenience in selecting a desired parameter set is improved.

  When the user operates a determination key (“Sel”) while temporarily selecting a desired identifier, the control unit 20 outputs a parameter set associated with the identifier to the image data processing unit 25 for image data processing. The unit 25 starts image quality adjustment based on the parameter set for the input image data.

As described above, according to the projector 1 of the present embodiment, the following effects can be obtained.
(1) According to the projector 1 of the present embodiment, when selecting an identifier for registering a parameter set, that is, before storing the parameter set in the storage unit 21, parameters included in the parameter set and provisional selection Since the parameters included in the registered parameter set are displayed in the memory registration menu image Gm5, the parameters included in both parameter sets can be compared. As a result, it becomes easy to confirm whether or not a parameter set that is the same or similar to the parameter set that is to be registered is already registered, and it is possible to suppress the registration of a plurality of the same or similar parameter sets. Is possible.

  (2) According to the projector 1 of the present embodiment, when selecting one parameter set to be called out from a plurality of registered parameter sets, parameters included in the currently used parameter set; Since the parameters included in the temporarily selected registered parameter set are displayed in the memory call menu image Gm6, the parameters included in both parameter sets can be compared. This comparison makes it easy to predict the display state (difference from the current display state) when each registered parameter set is used, and a desired one set is selected from a plurality of parameter sets. Convenience is improved.

(Second Embodiment)
Hereinafter, an image display apparatus according to a second embodiment of the present invention will be described with reference to the drawings.
The projector 1 which is the image display device of the present embodiment can compare parameters using the memory registration menu image Gm5 and the memory call menu image Gm6 when performing memory registration and memory call. The image displayed on the background of the menu images Gm5 and Gm6 makes it possible to compare the display state based on the currently used parameter set with the display state based on the parameter set registered in the storage unit 21.

FIGS. 9A and 9B are explanatory diagrams showing projected images of the projector according to the present embodiment, and represent images projected on the screen SC during memory registration.
When the memory registration menu image Gm5 is displayed and the identifier for which the parameter set has been registered is temporarily selected by the up and down direction keys (“↑”, “↓”), the control unit 20 causes the first embodiment to be described. Similarly to the above, the parameter set corresponding to the identifier is read from the storage unit 21, and the content (parameter) and the content of the parameter set currently in use are displayed in the memory registration menu image Gm5.

  In addition to this, as shown in FIG. 9A, the control unit 20 outputs the read parameter set to the image data processing unit 25, thereby performing image quality adjustment based on the parameter set on the input image data. The applied image Gs1 is displayed on the background of the memory registration menu image Gm5. Further, the control unit 20 instructs the OSD processing unit 27 to indicate that the image quality of the displayed image Gs1 is adjusted based on the registered parameter set, and an identifier corresponding to the parameter set. The OSD image Gn representing is superimposed on the input image Gs.

  Here, when the registered identifier is temporarily selected, that is, when the image Gs1 is displayed in the background of the memory registration menu image Gm5, the user operates the right arrow key (“→”). As shown in FIG. 9B, the control unit 20 outputs the parameter set that is currently in use (before registration) to the image data processing unit 25, so that the image Gs0 subjected to image quality adjustment based on the parameter set is output. It is displayed on the background of the memory registration menu image Gm5. Further, in order to indicate that the displayed image Gs0 has been subjected to image quality adjustment based on the currently used parameter set, the OSD processing unit 27 is instructed to display “current parameter” instead of the OSD image Gn. OSD image Gp representing “is displayed.

  When the user operates the left arrow key (“←”) in a state where the image Gs0 based on the currently used parameter set is displayed on the background of the memory registration menu image Gm5, the control unit 20 temporarily The display returns to the state in which the image Gs1 based on the selected registered parameter set is displayed. That is, when the user operates the left and right direction keys (“←”, “→”) alternately, the currently used parameter set is compared with the registered parameter set while viewing the actual images Gs0 and Gs1. It becomes possible to do.

  Although illustration is omitted, even when the memory call menu image Gm6 is displayed, the parameter set currently in use can be obtained by alternately operating the left and right direction keys (“←”, “→”). The image Gs0 that has undergone image quality adjustment based on it and the image Gs1 that has undergone image quality adjustment based on the temporarily selected registered parameter set can be switched and displayed in the background of the memory call menu image Gm6. Both parameters can be compared while viewing the actual images Gs0 and Gs1 at the time of calling.

As described above, according to the projector 1 of the present embodiment, in addition to the effects of the first embodiment, the following effects can be obtained.
(1) According to the projector 1 of the present embodiment, when selecting an identifier for registering a parameter set, that is, before storing the parameter set in the storage unit 21, the image Gs0 adjusted based on the parameter set is stored. And the image Gs1 adjusted based on the temporarily selected registered parameter set are switched and displayed according to the key operation. As a result, both parameter sets can be compared while viewing the actual images Gs0 and Gs1, so that it is further easier to check whether the same or similar parameter sets are already stored. .

  (2) According to the projector 1 of the present embodiment, when one parameter set to be called is selected from a plurality of registered parameter sets, the projector 1 is adjusted based on the currently used parameter set. The image Gs0 and the image Gs1 adjusted based on the temporarily selected registered parameter set are switched and displayed according to the key operation. That is, the display state when the registered parameter set is used can be confirmed by looking at the actual image Gs1, and can be compared with the image Gs0 based on the currently used parameter set. Convenience in selecting a desired set from the parameter set is further improved.

(Third embodiment)
Hereinafter, an image display apparatus according to a third embodiment of the present invention will be described with reference to the drawings.
The projector 1 which is the image display device of the present embodiment, when performing memory registration or memory call, uses the parameters displayed at the background of the menu images Gm5 and Gm6 in the same manner as in the second embodiment to determine the parameters currently in use. It is possible to compare the display state by the set with the display state by the registered parameter set.

FIG. 10 is an explanatory diagram showing a projected image of the projector according to the present embodiment, and represents an image projected on the screen SC during memory registration.
When the memory registration menu image Gm5 is displayed and the identifier for which the parameter set has been registered is temporarily selected by the up and down direction keys (“↑”, “↓”), the control unit 20 causes the first embodiment to be described. Similarly to the above, the parameter set is read from the storage unit 21, and the contents (parameters) and the contents of the parameter set currently in use are displayed in the memory registration menu image Gm5.

  In addition to this, as shown in FIG. 10, the control unit 20 instructs the image data processing unit 25 to display, for example, two left halves of the original input image Gs side by side. Image data is generated, image data representing the right image Gs0 is subjected to image quality adjustment based on the currently used parameter set, and image data representing the left image Gs1 is temporarily selected and read. The image quality adjustment based on the set parameter is performed, and the images Gs0 and Gs1 are displayed on the background of the memory registration menu image Gm5. Further, the control unit 20 instructs the OSD processing unit 27 to indicate that each of the images Gs0 and Gs1 has been adjusted in image quality based on the currently used parameter set and the registered parameter set. Thus, the OSD image Gp representing the “current parameter” is superimposed on the image Gs0, and the OSD image Gn representing the identifier corresponding to the registered parameter set is superimposed on the image Gs1.

  Although illustration is omitted, even when the memory call menu image Gm6 is displayed, the image Gs0 subjected to image quality adjustment based on the currently used parameter set and the temporarily selected registered image are displayed. And the image Gs1 subjected to image quality adjustment based on the parameter set are displayed side by side.

As described above, according to the projector 1 of the present embodiment, the following effects can be obtained in addition to the effects of the first and second embodiments.
According to the projector 1 of the present embodiment, when selecting an identifier for registering a parameter set, or when selecting a set of parameter sets to be called out from a plurality of registered parameter sets, Since the image Gs0 adjusted based on the parameter set in use and the image Gs1 adjusted based on the registered parameter set are displayed at the same time, it is easy to compare both.

  In order to allow the user to select a desired parameter set, the control unit 20 for displaying the memory call menu image Gm6 corresponds to the selection means of the present invention, and registers the currently used parameter set. The control unit 20 for displaying the memory registration menu image Gm5 corresponds to the registration means of the present invention. Also, the control unit 20 for displaying the menu images for changing the parameters (image quality adjustment menu image Gm1, color mode selection menu image Gm2, numerical value adjustment menu image Gm3) in the parameter changing means of the present invention. Equivalent to.

(Modification)
In addition, you may change embodiment of this invention as follows.
In the embodiment, a plurality of parameters included in the currently used parameter set and a plurality of parameters included in the registered parameter set are displayed in the memory registration menu image Gm5 and the memory call menu image Gm6. However, the number of parameters to be displayed is not limited to a plurality, and only one (for example, color mode) may be displayed.

  In the embodiment, only the parameters included in one temporarily selected parameter set are displayed as registered parameters to be displayed in the memory registration menu image Gm5 and the memory call menu image Gm6. The parameters included in the parameter set may be displayed.

  In the embodiment, the parameter set includes only parameters related to image quality adjustment. However, the parameter set may include parameters indicating a screen size (aspect ratio), parameters for adjusting an optical system, and the like.

  In the second and third embodiments, regardless of the type of input image (moving image or still image), the images Gs0, Gs1 displayed on the background of the menu images Gm5, Gm6 are always still images, and the two images Gs0, Gs1 may be strictly compared. As a still image, an image obtained by capturing an input image (moving image) may be used, or an image prepared in advance (stored in the storage unit 21 or the like) may be used.

  In the embodiment, the projector 1 is described as an example of the image display device, but the present invention can also be applied to other image display devices such as a liquid crystal display device.

1 is a block diagram showing a schematic configuration of a projector according to the present invention. Explanatory drawing explaining the menu image superimposed by an OSD process part. Explanatory drawing which shows the OSD image displayed when image quality adjustment is performed. Explanatory drawing which shows the OSD image displayed when selecting a color mode. Explanatory drawing which shows the OSD image displayed when adjusting a parameter. Explanatory drawing which shows the OSD image displayed when registering and calling a parameter set. Explanatory drawing which shows the OSD image displayed when registering a parameter set. Explanatory drawing which shows the OSD image displayed when calling a parameter set. (A), (b) is explanatory drawing which shows the projection image of the projector which concerns on 2nd Embodiment. Explanatory drawing which shows the projection image of the projector which concerns on 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Projector, 10 ... Projection part, 11 ... Light source, 12 ... Liquid crystal light valve, 13 ... Projection lens, 14 ... Light valve drive part, 20 ... Control part, 21 ... Memory | storage part, 22 ... Input operation part, 23 ... Remote control Signal receiving unit, 25 ... Image data processing unit, 26 ... Image memory, 27 ... OSD processing unit, 28 ... OSD memory, CN ... Input terminal, RC ... Remote control, Gm0 ... Menu image for processing selection, Gm1 ... Menu for image quality adjustment Image, Gm2 ... Color mode selection menu image, Gm3 ... Numerical value adjustment menu image, Gm4 ... Memory operation menu image, Gm5 ... Memory registration menu image, Gm6 ... Memory call menu image.

Claims (6)

An image display device that adjusts and displays an image based on a parameter set including a plurality of parameters,
Storage means for storing a plurality of sets of the parameter sets;
A selection means for selecting a desired set from the plurality of parameter sets stored in the storage means;
An image adjusting unit that acquires the parameter set selected by the selecting unit and adjusts the display state of the image based on the parameter set;
With
When the selection unit causes the one parameter set to be selected, the image display device displays a parameter included in the currently used parameter set and a parameter included in the parameter set stored in the storage unit. And an image adjusted based on the parameter set currently in use and an image adjusted based on the parameter set stored in the storage means so as to be switchable . An image display device that adjusts and displays an image based on a parameter set including a plurality of parameters,
Parameter changing means for changing the parameter;
Storage means capable of storing a plurality of sets of the parameter sets;
A registration unit that stores a parameter set including the parameter changed by the parameter changing unit in the storage unit;
With
Before the registration means stores the parameter set in the storage unit, the image display apparatus, a display and parameter included in the parameter set, and already parameters included in the parameter set stored in the storage means In addition, an image display device characterized in that an image adjusted based on the parameter set and an image adjusted based on the parameter set already stored in the storage means are displayed in a switchable manner. 3. The image display device according to claim 1 , wherein an image adjusted based on a currently used parameter set and an image adjusted based on a parameter set stored in the storage unit can be switched. when displaying the or the image being displayed is the image that is adjusted based on the parameter set currently used, whether the image is adjusted based on the parameter sets stored in the storage means An image display device that displays an image for identification . Projector, characterized in that functions as the image display device according to any one of claims 1-3.   A method of selecting a parameter set in an image display device that adjusts and displays an image based on a parameter set consisting of a plurality of parameters,
  Selecting a desired set from among the plurality of parameter sets;
  Obtaining the selected parameter set and adjusting the display state of the image based on the parameter set;
With
  When selecting the one set of parameter sets, the parameters included in the currently used parameter set and the parameters included in the parameter set stored in the storage unit are displayed, and the currently used parameter set is displayed. A method for selecting a parameter set, wherein the image adjusted based on the image and the image adjusted based on the parameter set stored in the storage unit are displayed in a switchable manner.   A method of storing a parameter set in an image display device that adjusts and displays an image based on a parameter set composed of a plurality of parameters,
  Changing the parameter;
  Storing a parameter set including parameters changed by the parameter changing means in a storage means;
With
  Before storing the parameter set in the storage unit, the parameters included in the parameter set and the parameters included in the parameter set already stored in the storage unit are displayed and adjusted based on the parameter set. A method for storing a parameter set, wherein the displayed image and an image adjusted based on the parameter set already stored in the storage means are displayed in a switchable manner.