JP2015111270A - Display control device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance operation efficiency when browsing an image, by carrying out quickly moving, zooming, and scrolling of a cursor.SOLUTION: A control unit of a display device controls a display unit so as to zoom an image around a current position of a cursor as a zooming center, when a zooming key is operated under a condition switched to a cursor mode by a switching key. Meanwhile, the control unit controls the display unit so as to zoom the image around a center of a screen as the zooming center, when the zooming key is operated under a condition switched to a scroll mode by the switching key.

Description

  The present invention relates to a display device, a projection device, a display method, and a program, and more particularly, to a display device, a projection device, a display method, and a program having a cursor movement function, a zoom function, and a scroll function.

  Conventionally, in a display device that displays an image on a screen or a projection device that projects an image on a screen or the like, a cursor indicating a part of the image is displayed on the image. In the cursor movement mode for moving the cursor, the cursor moves on the screen when an operation key arranged on the apparatus main body or an operation key of the remote control is operated. These operation keys are also used in a scroll mode for scrolling an image and a zoom mode for enlarging / reducing an image (see, for example, Patent Document 1).

JP 2001-265777 A

  However, in the case of a display device as described in Patent Document 1, if one of the modes is executed, the other mode cannot be executed. For example, while moving the cursor or scrolling, the image is displayed. In the case of enlarging / reducing, it is necessary to execute the zoom mode after canceling the cursor mode or the scroll mode once, and the operation at the time of viewing the image is inevitably complicated.

  An object of the present invention is to increase the operation efficiency at the time of image browsing by causing a cursor to move, zoom, and scroll more quickly.

The display device according to claim 1 comprises:
A display for displaying an image on the screen;
Based on the movement direction key for instructing the movement direction in each of the up, down, left and right directions, and the zoom key for instructing the zoom, based on the scroll mode for scrolling the image based on the operation on the movement direction key and the operation on the movement direction key An operation unit having at least a switching key for switching a cursor mode for moving a cursor on the image;
A control unit for controlling the display unit based on an instruction from the operation unit,
The controller is
When the zoom key is operated while being switched to the cursor mode by the switch key, the display unit is controlled so that the image is zoomed with the current position of the cursor as a zoom center,
When the zoom key is operated with the switch key being switched to the scroll mode, the display unit is controlled so that the image is zoomed with the center of the screen as the zoom center.

The invention according to claim 2 is the display device according to claim 1,
The controller is
Controlling the display unit to hide the cursor during the scroll mode;
The display unit is controlled so that the cursor is displayed in the cursor mode.

The invention described in claim 3 is the display device according to claim 1 or 2,
The controller is
In the cursor mode, the display unit is controlled such that when the cursor moves outside the image display area on the screen, the image is scrolled based on the movement.

The invention according to claim 4 is the display device according to any one of claims 1 to 3,
The controller is
When the zoom key is operated in the cursor mode, the display unit is controlled such that the image is scrolled and the image is zoomed after the current position of the cursor becomes the center of the screen. It is said.

The invention according to claim 5 is the display device according to any one of claims 1 to 3,
The controller is
When the zoom key is operated a plurality of times in the cursor mode, the image is zoomed for each operation, and the image is gradually scrolled for each zoom, and the current position of the cursor becomes the center of the screen. As described above, the display unit is controlled.

The invention according to claim 6 is the display device according to any one of claims 1 to 3,
The controller is
When the zoom key is operated in the cursor mode, the display unit is controlled so that the image is zoomed around the cursor after the scrolling of the image and the movement of the cursor are prohibited. It is said.

The invention according to claim 7 is the display device according to any one of claims 1 to 6,
The controller is
When the switching key is operated in the scroll mode to switch to the cursor mode, the display unit is controlled so that the cursor is displayed at the center of the screen.

The invention according to claim 8 is the display device according to any one of claims 1 to 6,
The controller is
Storing the coordinates on the screen where the cursor is located when the switch key is operated to switch to the scroll mode in the cursor mode;
When the switching key is operated in the scroll mode to switch to the cursor mode, the display unit is controlled so that the cursor is displayed on the stored coordinates.

The invention according to claim 9 is the display device according to any one of claims 1 to 6,
The controller is
Storing the coordinates on the image where the cursor is located when the switch key is operated to switch to the scroll mode in the cursor mode;
When the switch key is operated in the scroll mode to switch to the cursor mode, it is determined whether or not the stored coordinates on the image are within the screen. The display unit is controlled so that the cursor is displayed on a coordinate closest to the coordinate in the screen when it does not fit.

The invention according to claim 10 is the display device according to any one of claims 1 to 9,
The controller is
When the movement direction key has been operated immediately before the zoom key is operated in the scroll mode, the position shifted in the direction corresponding to the operation of the movement direction key from the center of the screen is used as the zoom center. The display unit is controlled so that the zoom is zoomed.

The invention according to claim 11 is the display device according to any one of claims 1 to 10,
The zoom key is capable of inputting zoom-in and zoom-out instructions.

The projection device of the invention according to claim 12
A display device according to any one of claims 1 to 11,
A micromirror element serving as the screen of the display device;
And a projection unit configured to project an image on the micromirror element by irradiating the micromirror element with light.

The display method of the invention according to claim 13 is:
A moving direction instruction for instructing a moving direction in each of up, down, left and right directions, a zoom instruction for instructing zooming, a scroll mode for scrolling the image based on the moving instruction, and a cursor on the image based on the moving instruction An operation process in which a switching instruction for switching the cursor mode is input,
A display step of displaying an image on the screen based on the input content from the operation step,
The display step includes
A first zoom step of zooming the image about the current position of the cursor as a zoom center when the zoom instruction is input in a state where the cursor mode is switched by the operation step;
A second zoom step of zooming the image about the center of the screen when the zoom instruction is input in a state where the scroll mode is switched by the operation step.

The program of the invention according to claim 14 is:
A moving direction instruction for instructing a moving direction in each of up, down, left and right directions, a zoom instruction for instructing zooming, a scroll mode for scrolling the image based on the moving instruction, and a cursor on the image based on the moving instruction An operation step in which a switching instruction for switching the cursor mode is input,
A display step of displaying an image on the screen based on the input content from the operation step,
The display step includes
A first zoom step of zooming the image about the current position of the cursor as a zoom center when the zoom instruction is input in a state in which the cursor mode is switched by the operation step;
When the zoom instruction is input in the state in which the scroll mode is switched by the operation step, a second zoom step of zooming the image about the center of the screen as a zoom center is provided.

  According to the present invention, when the zoom key is operated in the cursor mode, the image is zoomed with the current position of the cursor as the zoom center, and when the zoom key is operated in the scroll mode, the image is zoomed with the center of the screen as the zoom center. Thus, the image can be zoomed without canceling the cursor mode or the scroll mode once. Thereby, the movement, zooming, and scrolling of the cursor can be executed more smoothly, and the operation efficiency at the time of image browsing is improved.

It is a perspective view which shows the external appearance structure of the projector apparatus as a projection apparatus of this embodiment. It is explanatory drawing showing the keyboard layout etc. of the indicator with which the projector apparatus of FIG. 1 is provided. It is explanatory drawing showing the keyboard layout etc. of the remote controller with which the projector apparatus of FIG. 1 is equipped. It is a block diagram showing the function structure of the electronic circuit of the projector apparatus of FIG. FIG. 2 is a block diagram illustrating a specific schematic configuration of a display device, a micromirror element, and a projection unit included in the projector device of FIG. 1. It is explanatory drawing showing an example of the cursor displayed by the projector apparatus of FIG. 1, and a scroll pointer. It is a flowchart showing an example of the program performed with the projector apparatus 10 of this embodiment.

  Embodiments according to the present invention will be described below with reference to the drawings. First, the outline | summary of the projection apparatus of this embodiment is demonstrated. The projection device includes a micromirror element, a projection unit that projects an image on the micromirror element by irradiating light to the micromirror element, and displays the image on the screen using the micromirror element as a screen. And a display device. The display device includes a display unit that displays an image on a screen, a movement direction key that instructs the movement directions of up, down, left, and right, and a zoom key that instructs zooming, and scrolls the image based on an operation on the movement direction key. For controlling the display unit based on an instruction from the operation unit, and an operation unit having at least a switching key for switching between a scroll mode and a cursor mode for moving the cursor on the image based on an operation on the movement direction key Part. When the zoom key is operated while the cursor mode is switched to the cursor mode by the switching key, the control unit controls the display unit so that the image is zoomed with the current position of the cursor as the zoom center. Further, when the zoom key is operated in a state where the scroll key is switched to the scroll key, the control unit controls the display unit so that the image is zoomed with the center of the screen as the zoom center. As a result, the image can be zoomed without canceling the cursor mode or the scroll mode once.

  Hereinafter, the projection apparatus of this embodiment will be specifically described. 1A and 1B show an external configuration of a projector device as a projection device. FIG. 1A is a perspective view showing an upper side of the projector device, and FIG. 1B is a perspective view showing a lower side of the projector device.

  As shown in FIG. 1, the projector device 10 is provided with a projection lens 12, two pairs of distance measuring lenses 13 a, 13 b, 13 c, 13 d and an Ir transmission / reception unit 14 on the front surface of a rectangular parallelepiped main body casing 11. .

  The projection lens 12 is for projecting a light image formed by a spatial optical modulation element such as a micromirror element to be described later. Here, the focus position and the zoom position (projection angle of view) can be arbitrarily changed. Shall.

  Of the two pairs of distance measuring lenses 13a, 13b, 13c, and 13d, the pair of distance measuring lenses 13a and 13b are disposed along the vertical direction, and the other pair of distance measuring lenses 13c and 13d are horizontally aligned. It is arranged along. These distance measuring lenses 13a, 13b, 13c, and 13d constitute part of phase difference sensors 131 and 132, which will be described later, respectively, and are based on the principle of triangulation based on the parallax between these two lenses with respect to the subject image. Then, the distance to the subject, specifically, the distance to the projected image plane is measured.

  The Ir transmission / reception unit 14 receives infrared light on which a key operation signal from a remote controller 40 described later is superimposed and transmits an instruction signal to the remote controller 40.

A cover 17 and an indicator 15 are disposed on the upper surface of the main body casing 11.
The cover 17 is opened and closed when operating a main body subkey (not shown). The main body sub key can operate various detailed operations that cannot be set by the key of the indicator 15 without using the remote controller 40.

  An input unit 18, an Ir transmission / reception unit 19, and an AC adapter connection unit 20 are disposed on the back surface of the main body casing 11.

  The input unit 18 is, for example, a USB terminal for video input / output connection with an external device such as a personal computer, a mini D-SUB terminal for video input, an S terminal and an RCA terminal, a stereo mini terminal for audio input, and the like. Consists of. The input unit 18 is connected to an external device such as a PC, and receives image data created by the external device.

  The Ir transmitter / receiver 19 receives the infrared light on which the key operation signal from the remote controller 40 is superimposed, as well as the Ir transmitter / receiver 14, and transmits an instruction signal to the remote controller 40.

  The AC adapter connection unit 20 is connected with a cable from an AC adapter (not shown) serving as a power source.

A pair of fixed legs 21 and 21 are attached to the lower surface of the main body casing 11 on the rear side, and an adjustment leg 22 capable of height adjustment is attached to the front side.
The adjustment leg 22 is configured to adjust the vertical component of the projection direction of the projection lens 12, that is, the elevation angle, by manipulating the screw rotation position manually.

  Next, the indicator 15 will be described with reference to FIG. FIG. 3 is an explanatory diagram showing the key arrangement of the indicator 15 and the like. As shown in FIG. 3, the indicator 15 includes a power key 15a, a zoom key 15b, a focus key 15c, an “AFK” key 15d, an “Input” key 15e, an “Auto” key 15f, and a “menu”. ”Key 15 g,“ Change ”key 15 h,“ HELP ”key 15 i,“ Esc ”key 15 j,“ Up (↑) ”key 15 k,“ Down (↓) ”key 15 l,“ Left (←) ”key 15 m,“ A “write (→)” key 15n, an “Enter” key 15o, a power / standby indicator 15p, and a temperature (TEMP) indicator 15q are provided.

The power key 15a instructs on / off of the power.
The zoom key 15b instructs zoom-in (tele) and zoom-out (wide) by operating “Δ” and “▽”.

The focus key 15c instructs to move the in-focus position forward and backward by the operation of “Δ” and “▽”.
The “AFK” key 15d instructs immediate execution of various processes such as automatic focusing.

  The “Input” key 15 e instructs manual switching of the image signal input to any one of the input units 18, and the “Auto” key 15 f automatically switches the image signal input to any one of the input units 18. Instruct.

The “menu” key 15g instructs display of various menu items related to the projection operation.
The “Change” key 15h is a switching key according to the present invention, and instructs to switch between the scroll mode and the zoom mode.
The “HELP” key 15i instructs display of various help information when the instruction operation is unknown, and the “Esc” key 15j instructs release of the operation at that time.

  The “up” key 15k, the “down” key 15l, the “left” key 15m, and the “right” key 15n are operated in accordance with a menu item, a pointer, a cursor, or the like when a selection or movement direction is instructed at that time. Thus, the “up” key 15k, the “down” key 15l, the “left” key 15m, and the “right” key 15n are the movement direction keys according to the present invention for instructing the respective movement directions up, down, left and right. .

The power / standby indicator 15p displays a power on / off state and a state in which no image signal is input, for example, by turning on / off or blinking green and red LEDs.
The temperature indicator 15q displays whether or not the temperature of a lamp serving as a light source for image projection is in a state suitable for projection, for example, by turning on / off or blinking green and red LEDs.

Next, the remote controller 40 will be described. FIG. 4 is an explanatory diagram showing the key arrangement and the like of the remote controller 40. As shown in FIG. 4, similarly to the indicator 15, the remote controller 40 includes a power key 40a, a zoom key 40b, a focus key 40c, an “AFK” key 40d, an “Input” key 40e, and “Auto”. ”Key 40f,“ menu ”key 40g,“ Change ”key 40h,“ HELP ”key 40i,“ Esc ”key 40j,“ Up (↑) ”key 40k,“ Down (↓) ”key 40l,“ Left (← ) ”Key 40m,“ write (→) ”key 40n, and“ Enter ”key 40o.
Each of these keys outputs an instruction similar to each key of the corresponding indicator 15.

  FIG. 4 is a block diagram illustrating a functional configuration of the electronic circuit of the projector device 10. As shown in FIG. 4, the projector device 10 includes a display device 50 that displays an image, a micromirror element 36 that serves as a screen of the display device 50, and a micromirror element 36 that is irradiated with light. A projection unit 51 that projects an image on the element 36 is provided.

  The display device 50 includes a display unit 52 for displaying an image on the micromirror element 36, an operation unit according to the present invention such as the indicator 15 and the remote controller 40 described above, and a control unit 39. .

The display unit 52 includes a display encoder 33, a video RAM 34, and a display driving unit 35.
The projection unit 51 includes a light source unit 37, a projection lens 12, and a lens motor (M) 38.

FIG. 5 is a block diagram illustrating a specific schematic configuration of the display device 50, the micromirror element 36, and the projection unit 51.
The light source unit 37 includes a light source lamp 61, a reflector 62 that reflects light emitted from the light source lamp 61 in a direction for condensing the light forward, and a luminance distribution of light emitted forward of the reflector 62. A light guide member 63 is provided.

  The light guide member 63 is made of a transparent rectangular bar made of glass or the like, and has one end as an incident end of light and the other end as an exit end of light incident from the incident end. The light guide member 63 is disposed with its incident end opposed to the exit surface of the reflector 62. The light emitted from the incident end is incident on the front side of the reflector 62, and the light is guided while being reflected internally. Light having a uniform luminance distribution is emitted from the emission end.

  In addition, the color wheel 64 disposed on the emission side of the light source unit 37 is arranged around the central member 67 rotated at a low speed by the motor 65 in the circumferential direction thereof, and includes at least one space part without the color filters and the color filter. Are provided. The color wheel 64 has its wheel surface aligned with the condensing point of the emitted light from the light source unit 37, and a part of the circumference in which the color filters and the spaces of the plurality of colors are arranged is the optical path of the emitted light from the light source unit 37. It is arranged to intersect.

  The micromirror element 36 is a display element made of ultrathin metal pieces each having a vertical and horizontal width of 10 to 20 μm. The micromirror element has a display area in which a plurality of pixels formed by micromirrors tilted in one direction and the other by a mirror drive element based on COMS are arranged in a row direction and a column direction. The light incident at a predetermined incident angle from the incident direction inclined in one direction with respect to the front direction is reflected in one of the display observation direction and the other direction by switching the inclination direction of the micromirror, and a plurality of An image is displayed by controlling the emission of light from the pixel in the observation direction.

Between the micromirror element 36 and the light source unit 37, a light source side lens 71 that corrects the emitted light from the light source unit 37 in parallel and enters the micromirror element 36 is disposed. The projection lens 12 projects the light emitted from the micromirror element 36 in the observation direction on a projection surface such as a screen by enlarging the luminous flux.
In the present embodiment, each of the light source side lens 71 and the projection lens 12 is illustrated as a single lens, but each of the light source side lens 71 and the projection lens 12 includes a plurality of lenses in order to reduce lens aberration. It is configured by combining.

In addition, the display driving unit 35 that controls the micromirror element 36 is synchronized with the rotation of the color wheel 64 when the color filter of each color of the color wheel passes through the optical path of the emitted light from the light source unit 37. Single-color images of color components corresponding to the respective colors of the color mirror 64 are displayed on the micromirror element 36, and when the space portion of the color wheel 64 passes through the optical path of the emitted light from the light source section 37, the plurality of pixels of the micromirror element 36 The light emission time is adjusted.
The display drive unit 35 includes a color wheel control unit 68, a time division drive circuit 69, and a color sequence control circuit 70.

  The color wheel control unit 68 controls a motor 65 that rotates the color wheel 64 in synchronization with a timing signal given from the time-division drive circuit 69. The motor 65 is controlled by the color wheel control unit 68, The color wheel 64 is rotated at a constant speed.

  The time-division drive circuit 69 gives a timing signal to the color wheel control unit 68 according to the display mode signal sent from the color sequence control circuit 70, and each of red, green, and blue color components given from an external circuit (not shown). A monochrome image signal W is generated by matrix calculation based on the monochrome image signals R, G, and B, and the monochrome image signals R, G, and B of the respective color components of red, green, and blue are synchronized with the rotation of the color wheel 64. And the monochrome image signal W are sequentially supplied to the micromirror element 36.

  That is, the time division drive circuit 69 corresponds to the color of the color filter when the color filter of the color wheel 64 passes through the optical path of the emitted light from the light source unit 37 in synchronization with the rotation of the color wheel 64. Monochromatic image signals R, G, and B of color components are supplied to the micromirror element 36 to display a monochromatic image, and when the space portion of the color wheel 64 passes through the optical path of the emitted light from the light source unit 37, a monochrome image is displayed. A signal W is supplied to the micromirror element 36 to control light emission from a plurality of pixels of the micromirror element 36.

  Further, the time-division drive circuit 69 adjusts the supply time of the monochrome image signal W to the micromirror element 36 in accordance with the display mode signal from the color sequence control circuit 70, and during the supply time of the image signal W, A black and white image corresponding to the black and white image signal W is displayed on the mirror element 36.

  That is, the time-division drive circuit 69 determines the light emission time from the plurality of pixels of the micromirror element 36 when the space portion of the color wheel 64 passes through the optical path of the light emitted from the light source unit 37. Adjust according to the supply time.

  In this embodiment, as described above, the emitted light from the light source unit 37 is changed in the order of green light, blue light, red light, and non-colored light while the color wheel 64 rotates once. Therefore, the time-division drive circuit 69 supplies the micromirror element 36 with a green monochrome image signal, a blue monochrome image signal, a red monochrome image signal, and a monochrome image signal in order.

  The color sequence control circuit 70 sends a display mode signal for designating the brightness of the projection image selected by the user of the projection display device to the time division drive circuit 69.

  As shown in FIG. 4, an image signal of various standards input from the input unit 18 of the projector device 10 and an image signal based on material data in the storage unit 60 are input / output interface (I / F) 31, system After being unified into an image signal of a predetermined format by the image changing unit 32 via the bus SB, it is sent to the display encoder 33.

  The display encoder 33 develops and stores the transmitted image signal in the video RAM 34, generates a video signal from the stored contents of the video RAM 34, and outputs the video signal to the display drive unit 35.

  The display drive unit 35 controls the micromirror element 36 as described above at an appropriate frame rate, for example, 30 [frames / second] in accordance with the transmitted image signal.

  The projection lens 12 is driven by a lens motor (M) 38 to appropriately move the zoom position and the focus position. The control unit 39 controls all the operations of the circuits. The control unit 39 includes a CPU, a ROM that stores an operation program fixedly, a RAM that is used as a work memory, and the like.

A storage unit 60, a sound processing unit 41, an acceleration sensor 42, and a distance measurement processing unit 43 are connected to the control unit 39 via a system bus SB.
The storage unit 60 is composed of, for example, a flash memory, and stores image data such as material data for presentation materials, registered presentation time, and the like. The images are sent to the display encoder 33, and these images are projected and displayed by the projection lens 12.

The sound processing unit 41 includes a sound source circuit such as a PCM sound source, converts the sound data given during the projection display operation into an analog signal, and drives the speaker 16 to emit a loud sound.
The acceleration sensor 42 detects the vibration when the projector device 10 is moved from the installed state, and outputs a detection signal to the control unit 39.

  The distance measurement processing unit 43 drives the phase difference sensor 131 having the distance measurement lenses 13a and 13b and the phase difference sensor 132 having the distance measurement lenses 13c and 13d, respectively, to reach an arbitrary point position in the projected image. Measure distance.

  When a key operation signal is input to the control unit 39 by the indicator 15 or the remote controller 40, the control unit 39 controls each drive unit based on the signal.

  For example, when the cursor mode is switched by an operation from the “Change” key 15h, 40h, the control unit 39 controls the display unit 52 to display a cursor K1 as shown in FIG. To display. When the “up” key 15k, 40k, the “down” key 15l, 40l, the “left” key 15m, 40m, and the “right” key 15n, 40n are operated in the cursor mode, the operation direction corresponds to the operation direction. The control unit 39 controls the display unit 52 so that the cursor moves in the image.

  In the cursor mode, when the zoom keys 15b and 40b are operated, the control unit 39 controls the display unit 52 so that the image is zoomed with the current position of the cursor as the zoom center. At this time, the control unit 39 controls the display unit 52 so that the image is zoomed after the image scrolls and the current position of the cursor becomes the center of the screen.

  Then, the control unit 39 stores the coordinates on the screen where the cursor is positioned when the “Change” key 15h, 40h is operated in the cursor mode to switch to the scroll mode, and the “Change” key 15h, When 40h is operated to switch to the cursor mode, the display unit 52 is controlled so that the cursor is displayed on the stored coordinates.

  On the other hand, when the mode is switched to the scroll mode by an operation from the “Change” key 15h, 40h, the control unit 39 controls the display unit 52 to hide the cursor K1, and then FIG. A scroll pointer K2 as shown in FIG. When the “up” key 15k, 40k, the “down” key 15l, 40l, the “left” key 15m, 40m, and the “right” key 15n, 40n are operated in the scroll mode, The control unit 39 controls the display unit 52 so that the image scrolls. At this time, the control unit 39 controls the display unit 52 so that the arrow keys K3 to K6 in the direction corresponding to the scroll direction among the scroll pointers K3 to K6 shown in FIG.

  In the scroll mode, when the zoom keys 15b and 40b are operated, the control unit 39 controls the display unit 52 so that the image is zoomed about the center of the screen.

  Here, immediately before the zoom keys 15b and 40b are operated in the scroll mode, the control unit 39 moves the movement direction keys (“up” keys 15k and 40k, “down” keys 15l and 40l, “left” keys 15m and 40m, and When the “light” key 15n, 40n) is operated, the display unit 52 is controlled so that the image is zoomed with the position shifted from the center of the screen in the direction corresponding to the operation of the movement direction key as the zoom center. To do.

  Next, the operation of this embodiment will be described. FIG. 7 is a flowchart showing an example of a program according to the present invention that is executed by the projector device 10 of the present embodiment. By executing this program, the projection method according to the present invention is realized.

  In step S1, the control unit 39 controls the display unit 52 to display an initial image.

  In step S2, the control unit 39 determines whether or not the “Change” keys 15h and 40h are operated. If the “change” key 15h is operated, the control unit 39 proceeds to step S3 assuming that a switching instruction is input (operation process, operation). Step) If not operated, the process proceeds to step S40.

  In step S3, the control unit 39 determines whether the mode before switching is the cursor mode or the scroll mode. If the mode is the cursor mode, the process proceeds to step S4. The process proceeds to step S20.

  In step S4, the control unit 39 switches to the scroll mode. At this time, the control unit 39 stores the coordinates on the screen where the cursor is located.

  In step S5, the control unit 39 controls the display unit 52 to hide the cursor K1 and display the scroll pointer K2.

  In step S6, the control unit 39 determines whether or not the movement direction key ("up" key 15k, 40k, "down" key 15l, 40l, "left" key 15m, 40m, and "right" key 15n, 40n) is operated. If it is operated, the process proceeds to step S7. If it is not operated, the process proceeds to step S8.

  In step S7, the control unit 39 controls the display unit 52 so that the image scrolls in the operated movement direction (display process, display step).

  In step S8, the control unit 39 determines whether or not the zoom keys 15b and 40b have been operated. If the zoom keys 15b and 40b have been operated, the control unit 39 proceeds to step S9 (operation process) and is operated, assuming that a zoom instruction has been input. If not, the process proceeds to step S2.

  In step S9, the control unit 39 determines the zoom center. Here, before the zoom keys 15b and 40b are operated, if the movement direction key is not operated, the center of the screen is determined as the zoom center, and if the movement direction key is operated, the screen moves from the center of the screen. The position shifted in the direction corresponding to the operation of the direction key is determined as the zoom center.

  In step S10, the control unit 39 proceeds to step S11 when the zoom instruction is zoom-in, and proceeds to step S12 when zoom-out.

In step S11, the control unit 39 controls the display unit 52 so that the image is zoomed in from the zoom center determined in step S9, and proceeds to step S2.
In step S12, the control unit 39 controls the display unit 52 so that the image is zoomed out from the zoom center determined in step S9, and proceeds to step S2.
These steps S11 and S12 are the second zoom step and the second zoom step according to the present invention.

  In step S20, the control unit 39 switches to the cursor mode.

  In step S21, the control unit 39 controls the display unit 52 to display the cursor K1, and hides the scroll pointer K2. At this time, if the control unit 39 previously stores the coordinates on the screen in step S4, the cursor K1 is displayed on the coordinates, and if not, the cursor K1 is displayed at the center of the screen.

  In step S22, the control unit 39 determines whether or not the movement direction key ("up" key 15k, 40k, "down" key 15l, 40l, "left" key 15m, 40m, and "right" key 15n, 40n) is operated. If it is operated, the process proceeds to step S23. If it is not operated, the process proceeds to step S24.

  In step S23, the control unit 39 controls the display unit 52 so that the cursor K1 moves in the operated movement direction (display process, display step).

  In step S24, the control unit 39 determines whether or not the zoom keys 15b and 40b have been operated. If the zoom keys 15b and 40b have been operated, the control unit 39 proceeds to step S25 assuming that a zoom instruction has been input (operation process, operation step). If not operated, the process proceeds to step S2.

  In step S25, the control unit 39 determines the current position of the cursor as the zoom center.

  In step S26, the control unit 39 determines whether the zoom instruction is zoom-in or zoom-out. If the zoom instruction is zoom-in, the process proceeds to step S27. If the zoom instruction is zoom-out, the process proceeds to step S28. .

In step S27, the control unit 39 controls the display unit 52 so that the image is zoomed in from the zoom center determined in step S25, and proceeds to step S2.
In step S28, the control unit 39 controls the display unit 52 so that the image is zoomed out from the zoom center determined in step S25, and proceeds to step S2.
These steps S27 and S28 are the first zoom step and the first zoom step according to the present invention.

  In step S40, the control unit 39 determines whether the current mode is the cursor mode or the scroll mode. If the current mode is the cursor mode, the process proceeds to step S22. If the current mode is the scroll mode, step S6 is performed. Migrate to

  As described above, according to the present embodiment, when the zoom keys 15b and 40b are operated in the cursor mode, the image is zoomed with the current position of the cursor K1 as the zoom center, and the zoom keys 15b and 40b are operated in the scroll mode. Then, since the image is zoomed with the center of the screen as the zoom center, the image can be zoomed without canceling the cursor mode or the scroll mode once. Thereby, the movement, zooming, and scrolling of the cursor can be executed more smoothly, and the operation efficiency at the time of image browsing is improved.

  In the scroll mode, the cursor K1 is not displayed and the scroll pointer K2 is displayed. In the cursor mode, the cursor K1 is displayed and the scroll pointer K2 is not displayed. Can be recognized.

  Further, when the zoom keys 15b and 40b are operated in the cursor mode, the image is scrolled and the image is zoomed after the current position of the cursor becomes the center of the screen. Therefore, even after zooming, the zoom center remains at the center of the screen. This arrangement makes it easy to see the image after zooming.

  Then, the control unit 39 stores the coordinates on the screen where the cursor is located when the “Change” key 15h, 40h is operated in the cursor mode to switch to the scroll mode, and the “Change” key 15h, When 40h is operated to switch to the cursor mode, the display unit is controlled so that the cursor is displayed on the stored coordinates, so that the relevance to the previous cursor mode can be impressed.

  Further, when the movement direction key is operated immediately before the zoom keys 15b and 40b are operated in the scroll mode, the image is displayed with the position shifted from the center of the screen in the direction corresponding to the operation of the movement direction key as the zoom center. Since the zoom is performed, the zoom after scrolling can be realized without a sense of incongruity.

  Since the zoom keys 15b and 40b can input zoom-in and zoom-out instructions, the zoom keys 15b and 40b can smoothly execute enlargement and reduction of images.

Of course, the present invention is not limited to the above-described embodiment and can be modified as appropriate.
For example, in the present embodiment, a projector device as a front projector is described as an example, but the present invention can also be applied to a rear projector.
In this embodiment, a projector device as a projection device is exemplified as the display device of the present invention. However, the configuration of the present invention is applicable to devices capable of displaying images such as PDAs, mobile phones, and digital cameras. Of course, is also applicable.

  Further, in the present embodiment, the case where the operation keys of the indicator 15 and the remote controller 40 are push buttons has been described as an example. However, these operation keys may be, for example, lever type or slide type keys. Applicable.

  Further, the control unit 39 may control the display unit so that when the cursor K1 moves outside the image display area on the screen in the cursor mode, the image is scrolled based on the movement. Accordingly, it is possible to scroll the image by moving the cursor K1.

  Further, when the zoom keys 15b and 40b are operated a plurality of times in the cursor mode, the control unit 39 zooms the image for each operation, and gradually scrolls the image for each zoom, so that the current position of the cursor K1 is displayed on the screen. You may make it control the display part 52 so that it may become the center of. As a result, it is possible to suppress a visually uncomfortable feeling when moving the current position of the cursor from the center of the screen.

  Further, when the zoom keys 15b and 40b are operated in the cursor mode, the control unit 39 may control the display unit so that the image is zoomed after the scrolling of the image and the movement of the cursor K1 are prohibited. Thereby, control processing can be omitted as much as possible and control efficiency can be improved.

  Then, the control unit 39 may control the display unit 52 so that the cursor K1 is displayed at the center of the screen when the “Change” keys 15h and 40h are operated in the scroll mode to switch to the cursor mode. Thereby, since the cursor K1 is always displayed at the center of the screen after switching the cursor mode, the visibility of the cursor can be improved.

  Further, the control unit 39 stores the coordinates on the image where the cursor is located when the “Change” key 15h, 40h is operated in the cursor mode to switch to the scroll mode, and the “Change” key 15h, When 40h is operated to switch to the cursor mode, it is determined whether or not the coordinates on the stored image are within the screen, and if they are within, the coordinates are not on the coordinates. The display unit may be controlled so that the cursor is displayed on the coordinates closest to the coordinates on the screen. Thereby, the cursor can be displayed at the coordinates closest to the cursor position before switching.

  Note that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention in the implementation stage. Further, the functions executed in the above-described embodiments may be combined as appropriate as possible. The above-described embodiments include various stages of the invention, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if several constituent requirements are deleted from all the constituent requirements shown in the embodiment, if an effect is obtained, a configuration from which the constituent requirements are deleted can be extracted as an invention.

DESCRIPTION OF SYMBOLS 10 Projector apparatus 11 Main body casing 12 Projection lens 13a, 13b, 13c, 13d Distance measuring lens 14 Transmission / reception part 15 Indicator (operation part)
15b Zoom key 15h “Change” key (switching key)
15l "Down" key (movement direction key)
15m “Left” key (movement direction key)
15n "Light" key (movement direction key)
15k "Up" key (movement direction key)
DESCRIPTION OF SYMBOLS 16 Speaker 17 Cover 18 Input part 19 Transmission / reception part 20 Adapter connection part 21 Fixed leg part 22 Adjustment leg part 32 Image change part 33 Display encoder 34 Video RAM
35 Display Drive Unit 36 Micromirror Element 37 Light Source Unit 39 Control Unit 40 Remote Controller (Operation Unit)
40b Zoom key 40h “Change” key (switching key)
40l "Down" key (movement direction key)
40m "Left" key (movement direction key)
40n "Light" key (movement direction key)
40k "Up" key (movement direction key)
DESCRIPTION OF SYMBOLS 41 Audio | voice processing part 42 Acceleration sensor 43 Distance measurement process part 50 Display apparatus 51 Projection part 52 Display part 60 Memory | storage part 61 Light source lamp 62 Reflector 63 Light guide member 64 Color wheel 65 Motor 67 Center member 68 Color wheel control part 69 Time division drive Circuit 70 Color sequence control circuit 71 Light source side lens 131, 132 Phase difference sensor K1 Cursor K2 Scroll pointer

The present invention relates to a display control apparatus and a program for controlling display of an image on a screen .

An object of the present invention, the cursor display in the screen, by appropriately displayed during scrolling of the image, is to increase the operation efficiency.

Claim 1 is a display control device for controlling display of an image on a screen, and when a cursor is displayed on the screen after scrolling the image on the screen, a predetermined control on the screen is determined in advance. Display control means for controlling display so that a cursor is displayed at a predetermined position.

A display control apparatus for controlling display of an image on a screen, wherein the image is scrolled on the screen and the cursor is displayed on the screen before the image is scrolled. It is determined whether or not the cursor position on the image displayed on the screen is within the screen after scrolling the image. And a display control means for specifying a position on the image that is close to the cursor position displayed before the scrolling and controlling the display so that the cursor is displayed at the specified position. Features.

According to the present invention, the display cursor in the screen, by at properly displayed image scroll can Rukoto enhance the operation efficiency.

Claims (14)

A display for displaying an image on the screen;
Based on the movement direction key for instructing the movement direction in each of the up, down, left and right directions, and the zoom key for instructing the zoom, based on the scroll mode for scrolling the image based on the operation on the movement direction key and the operation on the movement direction key An operation unit having at least a switching key for switching a cursor mode for moving a cursor on the image;
A control unit for controlling the display unit based on an instruction from the operation unit,
The controller is
When the zoom key is operated while being switched to the cursor mode by the switch key, the display unit is controlled so that the image is zoomed with the current position of the cursor as a zoom center,
When the zoom key is operated while the scroll key is switched to the scroll mode, the display unit is controlled so that the image is zoomed with the center of the screen as the zoom center. apparatus. The display device according to claim 1,
The controller is
Controlling the display unit to hide the cursor during the scroll mode;
A display device that controls the display unit to display the cursor in the cursor mode. The display device according to claim 1 or 2,
The controller is
The display device, wherein in the cursor mode, the display unit is controlled so that when the cursor moves outside the image display area on the screen, the image is scrolled based on the movement. The display device according to any one of claims 1 to 3,
The controller is
When the zoom key is operated in the cursor mode, the display unit is controlled such that the image is scrolled and the image is zoomed after the current position of the cursor becomes the center of the screen. Display device. The display device according to any one of claims 1 to 3,
The controller is
When the zoom key is operated a plurality of times in the cursor mode, the image is zoomed for each operation, and the image is gradually scrolled for each zoom, and the current position of the cursor becomes the center of the screen. As described above, the display unit is controlled. The display device according to any one of claims 1 to 3,
The controller is
When the zoom key is operated in the cursor mode, the display unit is controlled so that the image is zoomed around the cursor after the scrolling of the image and the movement of the cursor are prohibited. Display device. The display device according to any one of claims 1 to 6,
The controller is
A display device that controls the display unit so that the cursor is displayed at the center of the screen when the switch key is operated to switch to the cursor mode in the scroll mode. The display device according to any one of claims 1 to 6,
The controller is
Storing the coordinates on the screen where the cursor is located when the switch key is operated to switch to the scroll mode in the cursor mode;
A display device that controls the display unit so that the cursor is displayed on the stored coordinates when the switching key is operated to switch to the cursor mode in the scroll mode. The display device according to any one of claims 1 to 6,
The controller is
Storing the coordinates on the image where the cursor is located when the switch key is operated to switch to the scroll mode in the cursor mode;
When the switch key is operated in the scroll mode to switch to the cursor mode, it is determined whether or not the stored coordinates on the image are within the screen. The display device, wherein the display unit is controlled so that the cursor is displayed on a coordinate closest to the coordinate in the screen when it does not fit. The display device according to any one of claims 1 to 9,
The controller is
When the movement direction key has been operated immediately before the zoom key is operated in the scroll mode, the position shifted in the direction corresponding to the operation of the movement direction key from the center of the screen is used as the zoom center. The display device controls the display unit so that the zoom is zoomed. In the display device according to any one of claims 1 to 10,
The zoom key is capable of inputting zoom-in and zoom-out instructions. A display device according to any one of claims 1 to 11,
A micromirror element serving as the screen of the display device;
A projection apparatus comprising: a projection unit configured to project an image on the micromirror element by irradiating the micromirror element with light. A moving direction instruction for instructing a moving direction in each of up, down, left and right directions, a zoom instruction for instructing zooming, a scroll mode for scrolling the image based on the moving instruction, and a cursor on the image based on the moving instruction An operation process in which a switching instruction for switching the cursor mode is input,
A display step of displaying an image on the screen based on the input content from the operation step,
The display step includes
A first zoom step of zooming the image about the current position of the cursor as a zoom center when the zoom instruction is input in a state where the cursor mode is switched by the operation step;
A display method comprising: a second zoom step of zooming the image about the center of the screen when the zoom instruction is input in a state where the scroll mode is switched by the operation step. . A moving direction instruction for instructing a moving direction in each of up, down, left and right directions, a zoom instruction for instructing zooming, a scroll mode for scrolling the image based on the moving instruction, and a cursor on the image based on the moving instruction An operation step in which a switching instruction for switching the cursor mode is input,
A display step of displaying an image on the screen based on the input content from the operation step,
The display step includes
A first zoom step of zooming the image about the current position of the cursor as a zoom center when the zoom instruction is input in a state in which the cursor mode is switched by the operation step;
And a second zoom step for zooming the image with the center of the screen as a zoom center when the zoom instruction is input in a state where the scroll mode is switched by the operation step.

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