JP2005215144A - Projector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a projector of which the operability is further enhanced by providing the body of the projector with a display part with a touch panel and performing various kinds of operations required for projecting an image to a projector using the touch panel and a remote controller. <P>SOLUTION: The projector is provided with the display part 2 with the touch panel 2a provided to the body of the projector 1; a circuit 24 for remote control as a receiving part which receives a signal from the remote controller 4 for remotely operating the projector 1; and an IF control circuit 28 and a main circuit 34, which make the display part 2 display an operation screen image 41 for performing the various kinds of operations required for projecting the image to the projector 1. Then, both of a first operation signal based on the operation of the touch panel 2a and a second operation signal based on the operation of the remote controller 4 received via the circuit 24 for remote control are accepted as an instruction for selecting an item in the operation screen image 41 and the main circuit 34 (CPU 34a) executes predetermined processing according to the item selected by the accepted operation signal. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a projector that enlarges and projects an image on a screen, and relates to a projector that includes a display unit in a main body of the projector.

Projectors are used in various places for business purposes such as meetings and lectures, and for home use such as watching movies at home. When using the projector, the operator of the projector performs various settings while viewing the setting image projected on the screen in order to make the projected image of the projector easy to see for the participants.
Under such circumstances, when making various settings such as selecting the input signal to the projector, setting the projection conditions when projecting an image to the screen (such as keystone distortion correction of the image), and setting the volume, it is projected on the screen. There was a problem that the set image was not readable and could not be read. In order to deal with such a problem, a method has been proposed in which a display screen with a touch panel is installed on the projector main body, a setting screen is displayed on the installed display screen, and selection is performed using the touch panel (Patent Document 1). Further, according to Patent Document 1, the display unit is rotatably installed, and the operator can rotate and set the display unit according to the position of the person himself, thereby improving operability.

JP 2001-174915 A

However, according to Patent Document 1, although the selection screen is simple, it does not explain how information provision (for example, information provision in case of malfunction) is performed for the operator when setting. In addition, the display unit that is rotatably installed is not described in detail in terms of structure, and a mechanism for rotating the display unit is complicated to actually implement. For this reason, a reduction in the reliability of the rotational operation becomes a problem. Further, since the display unit rotates, the reliability of the connection operation is lowered in circuit wiring connected to the display unit.
The present invention has been made in view of the above problems, and includes a display unit with a touch panel in a main body of a projector so that various operations necessary for causing the projector to project an image can be performed using the touch panel and a remote control device. An object of the present invention is to provide a projector with further improved operability.

In order to solve the above-described problems and achieve the object, a display unit with a touch panel provided in the main body of the projector, a receiving unit that receives a signal from a remote control device for remotely operating the projector, and the image on the projector An operation screen display processing unit for displaying an operation screen image for performing various operations necessary for projecting the image on the display unit, a first operation signal based on the operation of the touch panel, and the remote control received via the receiving unit An operation reception that receives both the second operation signal based on the operation of the apparatus as an instruction to select an item in the operation screen image and executes a predetermined process according to the item selected by the received operation signal And a processing unit.
According to the present invention, since the projector includes the display unit with the touch panel, the operation screen image associated with the switch position of the touch panel can be operated by operating the touch panel. Further, it is possible to operate the operation screen image via the receiving unit using the remote control device. And it becomes possible to perform the predetermined | prescribed process according to the selected item by operation with a touchscreen and operation with a remote control apparatus. Therefore, the operability and convenience of various operations necessary for projecting by the projector are improved.

According to a preferred aspect of the present invention, a power cable connected to the main body, a power connection detection unit that detects that the power cable is connected to the power source, and the power cable from the power connection detection unit serves as a power source. A power supply switch circuit that is closed based on the connected detection signal, an authentication screen display processing unit that displays an authentication screen image on the display unit when power is supplied to the main body due to the closing of the power supply switch circuit, and a touch panel with the authentication screen image Or an authentication unit that accepts an authentication code input by operating the remote control device and performs an authentication process, and the operation screen display processing unit is a power switch that can be operated with a touch panel when the authentication code is authenticated by the authentication unit An operation screen image including at least is displayed on the display unit.
According to the present invention, when power is supplied to the main body of the projector by the power cable, the power connection detection unit, and the switch circuit, the authentication screen image is displayed by the authentication screen display processing unit. The authentication unit authenticates the authentication code by operating the touch panel or the remote control device. When the authentication code is authenticated, the operation screen image including the power switch can be displayed on the display unit. With this configuration, it is possible to improve the effect of preventing unauthorized use of the projector by performing authentication even when the power is turned on. In addition, by operating the power switch after authentication and providing the power switch in the operation screen image, it is possible to eliminate all mechanical key switches in the projector. This is not possible, and the effect of preventing unauthorized use of the projector can be further enhanced.

According to a preferred aspect of the present invention, the display unit is fixed to the main body, and when a signal specifying the display direction of the image to be displayed on the display unit is given, the display unit displays the signal based on this signal. And a display orientation changing unit for changing the orientation of the image to be displayed.
According to the present invention, since the display orientation changing unit is provided, the direction of the operation screen image displayed on the display unit can be changed when a signal for specifying the display orientation of the operation screen image is given. improves.

According to a preferred aspect of the present invention, the operation unit for switching the display orientation is provided, and the display orientation changing unit is an image displayed on the display unit based on an operation signal based on an operation of the operation unit. It is characterized by changing the direction of the.
According to the present invention, by providing the operation unit for switching the display direction, for example, the switch for switching the display direction in the operation screen image, the direction of the image can be changed by operating the switch. Therefore, the operator of the projector can change the direction of the display image to an easily viewable position by operating the changeover switch in the operation screen image at his / her position, so that the operability is further improved.

In addition, according to a preferred aspect of the present invention, the display device includes a communication unit that wirelessly receives a signal specifying a direction in which the direction detector carried by the operator is located with respect to the main body from the direction detector, Is characterized in that the orientation of the image displayed on the display unit is changed so that the display direction is correct when the display unit is viewed from the direction specified based on the signal received via the communication unit.
According to the present invention, by providing the direction detector and the communication unit for receiving the output signal, the projector operator can carry the direction detector so that the operator can always operate easily. The orientation of the operation image can be adjusted, and the operability and convenience are further improved.

According to a preferred aspect of the present invention, the display orientation changing unit changes the layout of the operation screen image according to the display size of the display unit when changing the orientation of the image displayed on the display unit. Features.
According to the present invention, for example, when the orientation of the image is changed with respect to the display unit fixed to the projector, the orientation is changed when the ratio of the vertical / horizontal size that is the display size of the display unit is substantially the same. An operation screen layout similar to that before the operation may be displayed. However, when the display size ratios are relatively different, the operation screen layout can be changed to a layout corresponding to the display size and displayed.
With this function, even when the vertical / horizontal sizes of the display sizes of the fixed display units are different, it is possible to change the orientation and display the operation screen image.

According to a preferred aspect of the present invention, based on an operation signal when the touch panel is operated, it is determined whether or not two or more adjacent items are selected from among a plurality of items in the operation screen image. And an enlarged screen display processing unit for enlarging and displaying a part of the display area of the operation screen image including the selected two or more items when the determination unit determines that two or more items are selected. It is characterized by comprising.
According to the present invention, when the determination unit determines that two or more adjacent items are selected by operating the touch panel, the display area of a part of the operation screen image including the selected two or more items is enlarged. indicate. Therefore, when the operator mistakenly operates one item, for example, when two or more items are operated, the display area including the two or more items is enlarged and displayed one by one. Therefore, it is possible to reliably operate a desired item. Therefore, the operability is further improved.

According to a preferred aspect of the present invention, there is provided a return screen display processing unit for returning to the display state before the enlarged display when one item is selected from the plurality of items in the enlarged display area. Features.
According to the present invention, when the operator selects and operates the setting item on the enlarged operation screen image, it is possible to return to the reference operation screen before the enlarged display. Therefore, the operator can continue the subsequent operations efficiently, and the operation efficiency can be improved.

According to a preferred aspect of the present invention, the projector is a projector that can also be suspended from the ceiling, and includes a detection unit that detects that the main body is placed, and when the detection unit detects the operation screen image, An operation screen image is displayed on the display unit without performing projection. Note that the ceiling suspension means that the projector is suspended from the ceiling with a fixing bracket.
According to the present invention, when the detection unit detects that the projector is placed on a desk or the like, the operation screen image for performing various operations necessary for projecting the image is not projected on the screen, and the display unit It is possible to display only on the screen. When a projector is placed on a desk and used, an operator can perform operations without showing various operations to, for example, a conference participant other than the operator. In addition, the attendees of the conference will not feel uncomfortable on the projected operation screen.

According to a preferred aspect of the present invention, when the detection unit does not detect that the main body is placed, an operation screen image is projected.
According to the present invention, when the projector is used in a suspended state, the detection unit does not detect that the main body is placed on a desk or the like, and the operation screen image is projected on the screen. Since the operation screen image can be projected on the screen and operated by the remote control device, the operability and convenience are improved. Moreover, since display is not performed when display on the display unit is unnecessary, such as a ceiling suspension, it contributes to power consumption reduction.

According to a preferred aspect of the present invention, the detection unit includes a storage unit that stores in advance setting information on whether to display the operation screen image on the display unit and whether to project the operation screen image. A setting unit that reads the setting information from the storage unit and determines whether to display the operation screen image on the display unit and whether to project the operation screen image according to the read setting information. It is characterized by having.
According to this aspect of the invention, the detection unit detects whether or not the operation screen image is displayed on the display unit and the storage unit stores in advance setting information on whether or not to project the operation screen image. Then, the setting information is read from the storage unit, and it is possible to determine whether to display the operation screen image on the display unit, to project, or to perform both display and projection according to the setting information. Therefore, even when the projector is used on a desk, not only can it be displayed on the display unit, but also an operation screen image can be projected onto the screen, which can be set according to the convenience of the operator.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic perspective view showing an embodiment of a projector according to the present invention. The external configuration will be described with reference to FIG.
For the description of the configuration, all the six surfaces that are the external surfaces of the projector 1 are shown as a top surface portion 1a, a front surface portion 1b, a left surface portion 1c, a right surface portion 1d, a back surface portion 1e, and a bottom surface portion 1f.
The upper surface 1a is provided with a display unit 2 with a touch panel, a sounding hole 11 for a speaker, an LED (Light Emitting Diode) 12 for notifying a lamp abnormality, and the like.
The front surface portion 1b is provided with a projection lens 8 for enlarging and projecting an image, an exhaust port 9 for exhausting heat in the main body 1g of the projector 1, a remote control light receiving portion 6 for receiving a signal from a remote control device, and the like.
The left side surface portion 1c is provided with an air inlet 10 for taking in outside air for cooling the inside of the main body 1g of the projector 1 and a lamp portion (not shown) which is a light source in the main body 1g.
The right side surface portion 1d is provided with a handle (not shown) for carrying the projector 1 and an intake port (not shown) for cooling the inside of the main body 1g of the projector 1.
The rear portion 1e is provided with a mechanism (not shown) for replacing a lamp, which is a light source, and a video input terminal (not shown), which is a connection interface for taking in an input signal from the outside. Yes.
Two types of feet, an adjustable foot 13 and a fixed foot 14 (shown in FIG. 13) for fixing the projector 1, and an air inlet (for cooling the inside of the main body 1g of the projector 1) are provided on the bottom portion 1f. (Not shown).
The bottom surface portion 1f is also provided with a fixing portion 16 (shown in FIG. 13) that is used for fixing when the projector 1 is suspended from the ceiling.

Next, the configuration and operation of the display unit 2 with a touch panel will be described.
The display unit 2 to which the touch panel 2a is added employs a TFT (Thin Film Transistor) type LCD (Liquid Crystal Display) as a display panel. The touch panel 2a is specifically a resistive film type touch panel. A resistive film type touch panel is formed by depositing ITO (Indium Tin Oxide), a transparent conductive material, on glass and PET (Poly Ethylene Terephthalate) film, and providing a predetermined gap between the glass and PET film with dot-like spacers. It has a bonded structure. When a voltage is applied in the XY direction of the touch panel and the surface of the touch panel is operated (pressed) with a fingertip or the like, the voltage at the operated position is taken out as a partial pressure, and the extracted partial pressure is converted into XY coordinates. It is a method that can recognize the position.

FIG. 2 is a schematic configuration diagram of a circuit system showing the entire embodiment. The configuration will be described with reference to FIG.
The circuit system of the projector 1 includes a display unit 2 to which a touch panel 2a is added, a remote control device 4, a remote control circuit 24, a power cable 20, a power circuit 22, an external communication circuit 26, an IF (abbreviation for interface) control circuit 28, and video input. The circuit 30 includes a lamp driving circuit 32, a main circuit 34, a projection liquid crystal driving circuit 36, a liquid crystal panel 38, and the like. A projection lens 8 is also shown as an optical system.

Here, the configuration of the optical system of the projector 1 will be briefly described.
In addition to the projection lens 8, the projector 1 includes a lamp as a light source, an optical member such as a deflector plate, a dichroic mirror, and a condenser lens for deflecting, spectroscopic, and guiding light of the lamp, although not shown, A dichroic prism that synthesizes and splits the light emitted from the liquid crystal panel 38 and emits the light to the projection lens 8 is also provided. The synthesized outgoing light from the dichroic prism is magnified by the projection lens 8 and projected onto the screen 40.

Next, the operation of the circuit system will be briefly described.
When one of the power cables 20 is connected to the main body 1g and the other is connected to an outlet, the projector 1 outputs a detection signal for detecting the connection to the power source by the detection circuit 22a in the power circuit 22. Switch circuit 22b is closed to supply power to the main body 1g. The video input circuit 30 is connected using a connection cable from a personal computer (Personal Computer), a DVD (Digital Versatile Disc) playback device, or the like, and receives a signal such as an image. The input image signal is output to the main circuit 34. The main circuit 34 includes a CPU 34a that performs image processing and signal processing, a memory 34b that includes a ROM (Read Only Memory) that stores programs and the like, and the like. The main circuit 34 outputs the image signal input from the video input circuit 30 to the projection liquid crystal drive circuit 36. Then, the projection liquid crystal drive circuit 36 outputs a drive signal for each color light to the liquid crystal panel 38 to drive the liquid crystal panel 38 respectively. The color lights controlled by the liquid crystal panel 38 are combined by a dichroic prism (not shown), enlarged by the projection lens 8, and projected onto the screen 40. The main circuit 34 also controls a lamp driving circuit 32 that drives a lamp (not shown) as a light source.

  When the operator operates the touch panel 2a (presses a specific location), a signal (first operation signal) corresponding to the operated position is output from the touch panel 2a. The output signal is input to the IF control circuit 28, the setting item corresponding to the operated position of the touch panel 2a is read, and a signal corresponding thereto is output. Here, the IF control circuit 28 enters between the display unit 2 (touch panel 2a) and the main circuit, and performs various controls of the user interface system such as the display unit 2 (touch panel 2a) by a CPU included therein. Specifically, an operation signal on the touch panel 2 a is output to the main circuit 34, and a corresponding display image is output to the display unit 2 by a signal from the main circuit 34. The IF control circuit 28 includes a ROM that stores image data for operation screens, and the CPU controls the display unit 2 by signals from the touch panel 2 a and the main circuit 34. The IF control circuit 28 also controls the remote control circuit 24 as described above. When the operator operates the remote control device 4, the transmission signal from the remote control device 4 is received by the remote control circuit 24, and the remote control circuit 24 outputs the reception signal (second operation signal) to the IF control circuit 28. To do. Then, the operation content of the remote controller is read, and an output signal corresponding to the operation content is output to the main circuit 34. The IF control circuit 28 and the main circuit 34 constitute an operation screen display processing unit that displays an operation screen image 41 (see FIG. 3) for performing various operations necessary for causing the projector 1 to project an image. Part 2 is displayed.

Output signals from the touch panel 2 a and the remote control circuit 24 are input to the IF control circuit 28, and signals output from the IF control circuit 28 are input to the main circuit 34.
Based on the input signal, the main circuit 34 outputs a signal for performing a corresponding operation to the IF control circuit 28, the video input circuit 30, the lamp driving circuit 32, the projection liquid crystal driving circuit 36, etc., and performs the respective operations. Work. Thus, the main circuit 34 receives and processes the output signals from the touch panel 2a and the remote control circuit 24 as an operation acceptance processing unit.

  Further, the external communication circuit 26 receives an encoded image signal input from the outside by communication using radio wave communication or the like, and outputs it to the IF control circuit 28. Then, the IF control circuit 28 decodes the input image signal and outputs a video signal. The output video signal is input to the main circuit 34. The subsequent operation is the same as that when the image signal is input to the video input circuit 30 described above.

  The remote control device 4 is used when operating the operation screen image displayed on the display unit 2 or when operating the projected operation screen image. The operated signal uses infrared rays from the remote control transmission unit 4b. The signal is received by the remote control circuit 24 via the remote control light receiving unit 6. Further, the remote control device 4 includes a position sensor 4a. In the present embodiment, the position sensor 4a is configured by a vibration gyro. The remote control device 4 also communicates position data necessary for designating the position direction of the remote control device 4 with respect to the projector 1 to the remote control circuit 24 by using infrared rays by the position sensor 4a. Details will be described later.

FIG. 3 is a diagram showing an example of an operation screen image displayed on the display unit. The configuration of the display unit 2 will be described with reference to FIG.
An operation screen image 41 displayed on the display unit 2 of the present embodiment so as to be operable on the touch panel 2a is divided into three types of display areas 41a to 41c. From the upper side of the display unit, a system display unit 41a, a user display unit 41b, and an information display unit 41c are configured.
FIG. 3 shows a setting screen image 42 which is one of the operation screen images 41, and the System display section 41a of the setting screen image 42 is referred to as a power switch 42a and an escape switch 42b as shown in FIG. This is an area for displaying switches and the like that are inconvenient if they are not always displayed. The System display section 41a also displays a VIEW switch 42c, a menu switch 42d, and an enter switch 42e. The VIEW switch 42c will be described later.
The User display section 41b is an area for displaying switches other than the switches displayed on the System display section 41a. For example, as shown in FIG. 3, a keystone correction switch 42f, an input source switch 42g, a color mode switch 42h, and the like, which are switches for setting and correcting various projection conditions necessary for projecting an image, are displayed in this area. Is done. The user display section 41b also displays a description of the next operation to be performed.
The information display unit 41 c is an area for displaying internal information of the projector 1. For example, as shown in FIG. 3, the internal information includes error information such as lamp abnormality, the currently selected source, video signal information, and the like.

FIG. 4 is a flowchart showing an operation from when the projector 1 is turned on until an image is projected onto the screen 40. The processing flow of the main circuit 34 will be described with reference to FIG.
In step S100, when the power cable 20 is connected to the projector 1 and the power cable 20 is inserted into the power outlet, the detection circuit 22a that is the power connection detection unit in the power circuit 22 is connected to the power source. The detected detection signal is output. Then, the switch circuit 22b in the power supply circuit 22 operates to close the circuit, and supplies power from the power supply to the main body 1g of the projector 1. When power is supplied, the process proceeds to step S101. In step S101, the main circuit 34 determines whether the projector 1 is set to perform password authentication. If password authentication is set, the process proceeds to step S102. Here, an authentication screen display processing unit is configured by the main circuit 34 and the IF control circuit 28. When the process proceeds to step S102, the main circuit 34 displays the password input screen shown in FIG. 5A, which is an authentication screen image. A signal for displaying 43 is output to the IF control circuit 28. The IF control circuit 28 displays the password input screen 43 on the display unit 2 based on the signal. If password authentication is not set, the process proceeds to step S105 and the standby screen 44 shown in FIG. 5B is displayed.

  In step S103, it is determined whether a password as an authentication code has been input by the operator. The password input is accepted by either an operation signal input based on the operation of the touch panel 2 a or an operation signal input based on the operation of the remote control device 4 via the remote control circuit 24. When the password is input, the process proceeds to step S104, in which the set password is read from the memory 34b in the main circuit 34 as the authentication unit, and whether or not the input password matches the read password. The password authentication authentication process is executed. If they match (authentication success), the process proceeds to step S105, and the standby screen 44 shown in FIG. 5B is displayed. If the passwords do not match (authentication failure), the password input screen 43 is returned again and the password is input again. In this case, authentication failure information is also displayed on the information display unit 41c.

In step S105, the standby screen 44 is displayed. When the standby screen 44 is displayed, the process proceeds to step S106. In step S106, as in step S101 described above, it is determined whether or not the projector 1 is set to perform password authentication. If password authentication is set, the process proceeds to step S107. If password authentication is not set, the process proceeds to step S108. In step S107, the main circuit 34 measures the elapsed time from the state of the standby screen 44, which is the standby screen display in step S105, until the power switch 42a is turned “ON” in step S108, which will be described later. It is determined whether or not elapses. If the predetermined time has elapsed, the process proceeds to step S102 (returns), and again enters the state of the password input screen 43 that is the password input screen display, and the steps after step S103 are performed again. In this case, the information display unit 41c of the password input screen 43 also displays information that has become the password input screen display after a lapse of time.
Here, in step S108, it is determined whether or not the power switch 42a displayed on the System display unit 41a in the operation screen image of the display unit 2 has been operated by the operator. When the input signal of the power switch 42a is input to the main circuit 34 ("ON"), the process proceeds to step S109.
In step S109, the main circuit 34 outputs a lamp lighting signal to the lamp driving circuit 32, and the lamp driving circuit 32 performs a lamp lighting operation. In step S110, it is determined whether the lamp is actually lit. If it is determined that the main circuit 34 as the determination unit is turned on, the process proceeds to step S111. In step S111, a setting screen image 42 shown in FIG. 3, which is an operation screen image for performing various settings necessary for image projection, is displayed on the display unit 2. First, a source to be input to the projector 1 is selected. When the input source is selected, the projector 1 projects an image of the input source on the screen 40. If the input source is not selected, an initial screen, for example, only blue is projected. After the input source is selected and the image is projected, various other settings are performed on the setting screen image 42 of the display unit 2 as intended by the operator.
If it is determined in step S110 whether or not the lamp has been lit, the process proceeds to step S112, where the lamp abnormality screen 45 shown in FIG. 5C is displayed and the process ends. .

FIG. 5 is a diagram showing a display example in the step described with reference to FIG.
FIG. 5A is a display example of the password input screen 43. A description for inputting (operating) a password and a numeric switch 43a for actually inputting the password are displayed on the User display unit 41b, and an “*” mark is displayed for each input. Further, the system display unit 41a displays an enter switch 42e for inputting the password and confirming the input, an escape switch 42b for canceling the input failure, and the like. Then, the information display unit 41c displays the current operation information that informs the operator that the password is being entered.

FIG. 5B is a display example of the standby screen 44. A description for operating the power switch 42a is displayed on the User display unit 41b. Further, the system display unit 41a displays a power switch 42a and the like. Then, the information display unit 41c displays a display that informs the operator that the current operation information is in a standby state.
Since the power switch 42 a is displayed on the operation screen image 41, all the mechanical key switches are eliminated on the external surface of the projector 1.

  FIG. 5C is a display example of the lamp abnormality screen 45. The user display unit 41b displays the cause of the lamp failure and what to do. Then, the information display unit 41c displays the current operation information that informs the operator that the lamp temperature is abnormal. At this time, the main circuit 34 also controls the LED 12 provided on the upper surface 1a of the projector 1 to display an abnormal display, for example, a red lighting display if the temperature is abnormal, so that the operator To inform.

  FIG. 5D shows a display example of an abnormality notification screen 46 that is displayed when any abnormality occurs in the projector 1 when the projector 1 is operated including the flow of FIG. In this example, a display indicating that a system abnormality has occurred and a contact information for repair are displayed on the User display unit 41b. The information display unit 41c displays a current operation information that informs the operator that an internal abnormality is occurring. At this time, the main circuit 34 also controls the LED 12 provided on the upper surface portion 1a of the projector 1 to display an abnormal display, for example, a red flashing display if the system is abnormal, to the operator. Inform.

FIG. 6 is a display example of the power OFF confirmation screen 47 when the power of the projector 1 is “OFF”.
FIG. 6A is a display example of the power OFF confirmation screen 47 displayed when the power switch 42a is operated once before this display is displayed. The user display unit 41b displays a message asking whether the power supply is “OFF” or whether the input is incorrect. Here, when the power is turned off, the power switch 42a is operated again. When using without "OFF", the escape switch 42b is operated.

  FIG. 6B is a display example of a caution screen 48 that is displayed as the next display when the power switch 42a is operated again to turn the power off in FIG. 6A. This display indicates that the user wants the power cable 20 not to be disconnected even when the power is turned off. If the power cable 20 is unplugged immediately after the power is turned “OFF”, it becomes impossible to supply power to the fan for lowering the temperature in the main body 1g of the projector 1 and the reliability of various optical members will be lowered. This is because it is necessary to lower the temperature of various optical members to some extent by operating the fan for a certain time after the power is turned off. The information display unit 41c displays a display indicating that the cool-down is in progress, which is a state in which the temperature in the main body 1g of the projector 1 is being lowered, which is current operation information. Thereafter, after several tens of seconds, the standby screen 44 shown in FIG. 5B is displayed.

  The selection items of the operation screen image 41 can be input by operating the touch panel 2a or the remote control device 4 both. However, whether to operate with the touch panel 2a or the remote control device 4 can be set in the operation screen image 41 displayed on the display unit 2. Further, the remote control operation can be disabled by turning off the remote control operation switch 112 (shown in FIG. 7) provided in the remote control device 4.

FIG. 7 is a schematic plan view of the remote control device 4 used in the present embodiment. The operation correspondence between the operation screen image 41 of the display unit 2 and the remote control device 4 will be described with reference to FIG.
The remote control device 4 has various functions assigned to each switch. For example, the switch indicated by the area 104 such as the power switch 100, the confirmation switch (displayed by ENT), the escape switch (displayed by ESC), and the menu switch (displayed by MENU) is displayed on the System display unit 41a shown in FIG. It corresponds to. Further, the switch indicated by the area 106 corresponds to the display of the input source switch 42g of the User display unit 41b shown in FIG. The number switch indicated by the area 108 corresponds to the password input number switch 43a of the User display unit 41b shown in FIG. The jog switch 102 is a switch used when selecting a setting item. By operating the jog switch 102, the item of the operation screen image 41 is moved in the horizontal direction or moved in the vertical direction. .
The remote control device 4 is provided with a remote control operation switch 112 to control whether or not to output an operation signal. Each time the remote control operation switch 112 is operated, “ON” / “OFF” is alternately repeated. In the “ON” state, a remote control operation display LED 112 a provided beside the remote control operation switch 112 blinks. On the other hand, in the “OFF” state, the remote control operation display LED 112a is not lit at all.
Further, by turning off the power switch 114 for the remote control device, which is a mechanical slide switch that supplies power to the remote control device 4, all the switch operations of the remote control device 4 become invalid.

  FIG. 8 is a flowchart showing an operation for determining the orientation of the image including the operation screen image 41 displayed on the display unit 2 fixed to the main body 1 g of the projector 1. FIG. 9 is a display example schematically showing display contents when the orientation of the image is changed as an example of the image.

Processing operations and display examples will be described with reference to FIGS.
In the present embodiment, two methods are used to output a signal for specifying the orientation for changing the orientation of the operation screen image 41. One is a method of outputting a signal by operating the VIEW switch 42c as an operation unit displayed on the System display unit 41a illustrated in FIGS. 3, 5 and 6. The other method is to use the position sensor 4a (vibration gyro) built in the remote control device 4 to output a signal of the current position information of the operator carrying the remote control device 4 from the position sensor 4a to the projector 1. It is. However, the operation in the case of explaining the flowchart shown in FIG. 8 is to operate the VIEW switch 42c displayed on the System display unit 41a, and the operation on the remote control device 4 will be described later.
In this embodiment, the main circuit 34 and the IF control circuit 28 constitute a display orientation changing unit. Then, the main circuit 34 processes a signal for specifying the direction by operating the VIEW switch 42c, and displays the display image changed in the direction specified by the IF control circuit 28 on the display unit 2 based on the processed signal. .

  When the operation screen image 41 is displayed for the first time after successful password authentication, the operation screen image 41 is displayed in the initial setting direction in step S200. In FIG. 9, the display indicated by 120 is the initial setting direction. Specifically, in FIG. 1, the display direction in which the operation screen image 41 of the display unit 2 appears as the correct display direction when the operator stands on the back surface 1 e side of the projector 1 is the initial setting direction.

  In step S201, it is determined whether or not the VIEW switch 42c has been operated. When the VIEW switch 42c is operated here, a signal is output from the touch panel 2a to the IF control circuit 28, and a signal indicating that the VIEW switch 42c is operated is output from the IF control circuit 28 to the main circuit 34. Based on the signal input from the IF control circuit 28, the main circuit 34 (CPU 34a) determines that the VIEW switch 42c has been operated. If it is determined that the VIEW switch 42c has been operated, the process proceeds to step S202. In step S202, a signal for causing the IF control circuit 28 to perform display with the orientation of the display image changed is output. The IF control circuit 28 receives the signal from the main circuit 34 and displays the display image changed in the direction specified by the signal. Here, in this embodiment, a method of rotating the display direction by 90 ° in the clockwise direction in FIG. 9 every time the VIEW switch 42c is operated (pressed) once is adopted. Therefore, when the VIEW switch 42c is operated, the operation screen image data obtained by rotating the image direction at that time by 90 ° in the clockwise direction is read from the ROM in the IF control circuit 28 and displayed on the display unit 2. The display in step S202 is shown in FIG. The operation screen image 41 is displayed in a direction that can be correctly viewed when the operator stands on the left side 1c side of the projector 1 and looks at the display unit 2.

Next, it is determined in step S203 whether or not the VIEW switch 42c has been operated. If it has been operated, in step S204, a display image rotated by 90 ° with respect to the display image displayed in step S202 is displayed. Part 2 is displayed. Here, since the signal processing method is the same as that in step S202, description thereof is omitted. The display in step S204 is shown in FIG. The operation screen image 41 is displayed in a direction that can be correctly viewed when the operator stands on the front surface 1b side of the projector 1 and looks at the display unit 2.
Next, it is determined in step S205 whether or not the VIEW switch 42c has been operated. If it has been operated, in step S206, a display image rotated by 90 ° with respect to the display image displayed in step S204 is displayed. Part 2 is displayed. The display in step S206 is shown in FIG. The operation screen image 41 is displayed in a direction that can be correctly viewed when the operator stands on the right side 1d side of the projector 1 and looks at the display unit 2.
Next, it is determined whether or not the VIEW switch 42c has been operated in step S207, and if it has been operated, the process returns to step S200, and the display image rotated by 90 ° with respect to the display image displayed in step S206. A display image in the same direction as the display image in the initial setting direction is displayed on the display unit 2. FIG. 9 shows a diagram 120.

  As described above, in the present embodiment, a display method is adopted in which the display direction is changed every 90 ° every time the VIEW switch 42c is operated with respect to the display image in the initial setting direction. Therefore, the operation screen image 41 can be displayed in four directions. When the operator operates the VIEW switch 42c to determine an easy-to-view display direction at his / her position, the operator can perform various operations necessary for projecting an image in the correct display direction.

Next, a case where the display orientation of the operation screen image 41 is changed using the remote control device 4 will be described.
In the present embodiment, the remote control device 4 is used as a direction detector carried by the operator. The remote control device 4 is equipped with a position sensor 4a (see FIGS. 2 and 7), and the position sensor 4a outputs a current position signal from the remote control transmission unit 4b of the remote control device 4 by infrared rays. The output signal is received by the remote control circuit 24 which is a communication unit via the remote control light receiving unit 6, and the signal is input to the main circuit 34 via the IF control circuit 28. In the main circuit 34, the position of the remote control device 4 with respect to the projector 1 can be specified by a predetermined program based on the input position information of the position sensor 4a. Then, the main circuit 34 performs IF control on a signal for displaying the operation screen image 41 on the display unit 2 so that the operation screen image 41 is displayed in the correct orientation when the display unit 2 is viewed from the specified position. It outputs to the circuit 28. The IF control circuit 28 causes the display unit 2 to display an operation screen image 41 having an orientation corresponding to the position specified based on the signal.

  In the present embodiment, a vibration gyro is used as the position sensor 4 a mounted on the remote control device 4. The principle of the vibrating gyroscope will be briefly described. The vibrating body constituting the vibrating gyroscope is driven by the driving piezoelectric element to vibrate in one direction, and in this state, there is an input of an angular velocity about the longitudinal axis of the vibrating body. This is the principle that a vibration component appears in an orthogonal direction due to the “Coriolis” phenomenon, and a voltage is generated in the detecting piezoelectric element.

  Further, in the schematic plan view of the remote control device 4 in FIG. 7, the position sensor 4 a is fixedly installed inside the remote control device 4. Whether or not to output a position information signal from the position sensor 4 a is controlled by operating a position communication operation switch 110 provided in the remote control device 4. Each time the position communication operation switch 110 is operated, “ON” / “OFF” is alternately repeated. In the “ON” state, the position communication operation display LED 110 a provided beside the position communication operation switch 110 blinks. On the other hand, in the “OFF” state, the position communication operation display LED 110a is not lit at all. Further, the position information from the position sensor 4 a is transmitted to the projector 1 in the “ON” state.

FIG. 10 shows a display example when the display orientation of the operation screen image 41 of the present embodiment is changed.
FIG. 10A is a display example of the operation screen image 41 in the initial setting direction, and FIG. 10B is a display example of the operation screen image 41 when the VIEW switch 42c is operated and the 90 ° display direction is rotated. is there.
In the present embodiment, since the vertical / horizontal size ratio of the display unit 2 fixed to the main body 1g of the projector 1 is not 1: 1, the operation screen image layout is displayed on the display unit 2 as shown in FIG. The operation screen image layout has been changed to match the vertical / horizontal size. Even when the operation screen image layout is changed, the display area of the display unit 2 is divided into three types: a System display unit 41a, a User display unit 41b, and an Information display unit 41c.

FIG. 11 shows an enlarged table when two setting items adjacent to each other are selected when operating the setting items on the touch panel 2a with respect to the operation screen image 41 of the display unit 2 shown in FIGS. An example is shown. Specifically, when selecting a source in the operation screen image 41 shown in FIGS. 3 and 10, for example, an example of an enlarged display diagram when adjacent switches of the Video switch and the D-Sub switch are operated simultaneously, for example. Show.
3 and 10, when two or more adjacent switches such as a Video switch and a D-Sub switch are operated on the User display unit 41 b, as shown in FIG. Four input source switches 42g of “Video”, “S-Video”, “D-Sub”, and “Component”, which are selections of a certain source, are enlarged and displayed on the display unit 2. When a plurality of setting items are operated by mistake, an area including the plurality of setting items is selected from setting data stored in advance in the ROM of the IF control circuit 28 based on a signal from the main circuit 34. It is like that.
In addition, when the operator operates one place on the operation screen image 41 displayed in an enlarged manner, it is possible to return to the original operation screen image 41 before the enlarged display.

FIG. 12 is a flowchart illustrating an operation when two or more adjacent switches of setting items are operated in the operation screen image 41. This will be described with reference to FIG.
The program shown in the flowchart of FIG. 12 is stored in the memory 34b, and the CPU 34a of the main circuit 34 reads this program from the memory 34b and executes it.
Further, the main circuit 34 and the IF control circuit 28 constitute an enlarged screen display processing unit and a display screen return processing unit, and the IF control circuit 28 performs an enlarged display on the display unit 2 according to a signal from the main circuit 34. To return to the image display.

  First, in step S300, an operation screen image 41 of normal setting items is displayed. When the enter switch 42e is operated in step S301, the display of the setting item operation screen image 41 ends here. However, if the enter switch 42e is not operated, the process proceeds to step S302 and the setting item switch 42e is displayed. It is determined whether or not an operation has been performed. Here, in steps S301 and S302, the time interval (elapsed time) from the switch operation to the next switch operation is measured by the counter provided in the main circuit 34, and the time during which no switch operation is performed is a predetermined time. Then, the state of the operation screen image 41 of the setting item is also released. When the operator operates the touch panel 2a in step S302 and the main circuit 34 determines that the switch operation has been performed, the process proceeds to step S303. In step S303, it is determined whether two or more adjacent switches are operated almost simultaneously. This determination is made by the main circuit 34 as a determination unit. When it is determined that two or more adjacent switches are operated almost simultaneously, a signal is output from the main circuit 34 to the IF control circuit 28. Then, the process proceeds to step S304, and the IF control circuit 28 reads an area including a plurality of operated items from the ROM in the IF control circuit 28 based on the signal, and displays the area on the display unit 2. Zoom in.

Next, in step S305, it is determined whether or not a switch operation has been performed on the setting item displayed in an enlarged manner. If a switch operation has been performed, the process proceeds to step S306. In step S306, processing corresponding to the item for which the switch operation is performed is executed.
When the process is executed in step S306, the process returns to step S300, and the operation screen image 41 of the normal setting item is displayed.

In step S303, when two or more adjacent switches are not operated (one switch is operated), the process proceeds to step S307. In step S307, as in step S306, processing corresponding to the item for which the switch operation is performed is executed. After execution, the process returns to step S301 and the setting state continues.
According to the above flow, determination and processing control are performed when two or more adjacent switches are operated.

FIG. 13 is an exemplary diagram when the projector 1 is provided with a detection unit. The detection unit will be described with reference to FIG.
FIG. 13A is a schematic enlarged sectional view showing a state where the projector 1 is placed on a desk.
In the present embodiment, a detection switch is used as the detection unit, and a micro switch 50 is used as the detection switch. The micro switch 50 is fixed with solder 71 by inserting a terminal 50 b of the micro switch 50 into a micro switch circuit board 70 installed in the main body 1 g of the projector 1. The fixed pin 50a of the micro switch 50 is positioned in the direction of penetrating the lower case 60 constituting the main body 1g of the projector 1 and on the back surface 1e side opposite to the height-adjustable foot 13 of the projector 1. It is provided in a state of penetrating a hole formed in the center of the foot 14. When no force is applied from the outside, the movable pin 50a is longer than the distal end portion 14a of the fixed foot 14 and protrudes from the distal end portion 14a (indicated by a two-dot chain line in FIG. 2). In this state, the microswitch 50 is in an “OFF” state. From this state, when the projector 1 is placed on the desk, the desk top surface 80 pushes up the movable pin 50a and comes into contact with the distal end portion 14a of the fixed foot 14. The movable pin 50a moves the distance A. This is the case when the projector 1 is placed on the desk. In this state, the microswitch 50 is in an “ON” state.

FIG. 13B is a schematic enlarged sectional view showing a state where the projector is suspended from the ceiling.
When performing ceiling suspension, a fixing portion 16 provided on the lower case 60 constituting the main body 1g of the projector 1, for example, an insert nut and a fixing member 90 constituting a ceiling bracket fixed to the ceiling, for example, a bolt, The projector 1 and the ceiling mount are fixed to perform ceiling suspension. In this case, the movable pin 50a of the microswitch 50 is in a state of protruding from the distal end portion 14a of the fixed foot 14 in a state where no force is applied from the outside. In this state, the microswitch 50 is in an “OFF” state.

FIG. 14 is a flowchart showing the operation of the detection unit. The flow will be described with reference to FIG.
First, in step S400, it is determined whether or not the micro switch 50 serving as a detection switch is turned “ON”. If “ON” is determined here, the process proceeds to step S 401, and setting information is read from the memory 34 b of the main circuit 34.

  Here, the setting information indicates that the operation screen image 41 is displayed only on the display unit 2 or the operation screen image 41 is displayed on the display unit 2 when placed on the desk (when the micro switch 50 is “ON”). The setting information is preset by the operator as to whether the operation screen image 41 is projected or only the operation screen image 41 is projected. In the present embodiment, in the initial state in which the operator does not change the setting, the operation screen image 41 is set to be displayed only on the display unit 2 when placed on the desk (the state shown in FIG. 13A). The setting information is stored in a memory 34b as a storage unit of the main circuit 34. When the setting information is detected by the micro switch 50 that is a detection unit, whether or not the operation screen image 41 is displayed on the display unit 2 is determined. The CPU 34a as a determining unit that determines whether or not to project the image 41 reads the setting information from the memory 34b, and executes processing based on the setting information.

In step S402, based on the setting information read in step S401, it is determined whether or not the operation screen image 41 is set to be displayed only on the display unit 2 in the present embodiment when the micro switch 50 is turned “ON”. to decide. If the setting information is displayed only on the display unit 2, the process proceeds to step S403, and if not, the process proceeds to step S405. Therefore, when the projector 1 is used in a state where it is placed on the desk, since the micro switch 50 that is a detection switch is turned “ON”, the operation screen image 41 is displayed only on the display unit 2 in step S403, and the information image is displayed. Is not projected.
If the setting is not to display the operation screen image 41 only on the display unit 2 in step S402 but to display the operation screen image 41 on the display unit 2 and perform projection, the process proceeds to step S405 to display the display unit. 2 displays the operation screen image 41, and the operation screen image 41 is also projected.
If the detection switch is not “ON” in step S400, the process proceeds to step S404, and the operation screen image 41 is projected. Therefore, when the projector 1 is used in a suspended state, the operation screen image 41 is projected because the micro switch 50 that is a detection switch is not turned “ON”.

According to the embodiment described above, the following effects can be obtained.
(1) Since the projector 1 includes the display unit 2 with the touch panel 2a, the operation screen image 41 associated with the switch position of the touch panel 2a can be operated by operating the touch panel 2a. Further, it is possible to operate the operation screen image 41 using the remote control device 4 via the remote control circuit 24 which is a receiving unit. A predetermined process corresponding to the selected item can be executed by an operation on the touch panel 2a and an operation on the remote control device 4. Therefore, the operability and convenience of various operations necessary for projection by the projector 1 are improved.

(2) When power is supplied to the projector 1 by the power cable 20, the detection circuit 22a as the power connection detection unit, and the switch circuit 22b, an authentication screen image is displayed. The main circuit 34, which is an authentication unit, authenticates the input authentication code. When the authentication code is authenticated, the operation screen image 41 including the power switch 42a can be displayed on the display unit 2. With this configuration, it is possible to improve the effect of preventing unauthorized use of the projector by performing authentication even when the power is turned on.
In addition, when the power switch 42a is not operated for a predetermined time or longer from the state of the standby screen 44 after the authentication, the password input screen 43 for inputting the password is displayed again, so that the effect of preventing unauthorized use of the projector 1 can be further enhanced. it can.
Further, by operating the power switch 42a after authentication and providing the power switch 42a in the operation screen image 41, the projector 1 can be completely free of mechanical key switches. Can be further improved. At the same time, by eliminating all mechanical key switches, it is necessary for a malicious third party to be able to operate the device even if it is stolen. It has the effect of giving a sense that it may not be possible, and can also be expected to prevent theft.

  (3) Since the VIEW switch 42c is provided, the direction of the operation screen image 41 displayed on the display unit 2 can be changed when a signal for specifying the display direction of the operation screen image 41 is given. improves.

  (4) As an operation unit for switching the display orientation, a VIEW switch 42c is provided in the operation screen image 41, and the orientation of the image can be changed by operating the VIEW switch 42c. Therefore, the operator of the projector 1 can change the direction of the display image to a position where it can be easily seen by operating the VIEW switch 42c in the operation screen image 41 at his / her position, so that the operability is further improved.

  (5) By providing a position sensor (vibration gyro) 4a built in the remote control device 4 as a direction detector, a signal at the current position of the vibration gyro is output by infrared rays, and the output signal is received by the remote control circuit 24. The position of the remote control device 4 relative to the projector 1 can be specified by a predetermined program in the main circuit 34. Then, the operation screen image 41 having an orientation corresponding to the specified position can be displayed on the display unit 2. Therefore, the operator can always adjust the direction of the operation screen image 41 in the direction in which the operator can easily operate by carrying the remote control device 4, and the operability and convenience are further improved. .

  (6) When displaying the display unit 2 fixed to the projector 1 by rotating the image orientation by 90 °, the orientation of the display unit 2 is different even if the vertical / horizontal sizes are different. When the operation screen image 41 is displayed with the change, the layout can be changed to the vertical / horizontal size at that time. Even when the display direction is changed for the operator, the operation screen image 41 is easy to see without being cramped, and the switch of setting items can be efficiently arranged on the screen at an appropriate interval with an appropriate interval. The operability of the image 41 can also be secured.

  (7) For the item selected by operating the touch panel 2a, the CPU 34a determines whether or not two or more adjacent setting items are selected, and the CPU 34a determines that two or more setting items are selected. In such a case, a part of the display area of the operation screen image 41 including two or more selected setting items is enlarged and displayed. Therefore, when the operator deviates from the target item portion to be set on the operation screen image 41 and operates, for example, two or more places, a part of the display area of the operation screen image 41 including the setting item is enlarged and displayed. Therefore, the setting item can be reliably operated from the enlarged display screen. Therefore, the operability is further improved.

  (8) When the operator selects and operates the setting item on the operation screen image 41 displayed in an enlarged manner, the screen returns to the reference operation screen before the enlarged display. Therefore, the operator can continue the subsequent operations efficiently, and the operation efficiency can be improved.

  (9) When the detection unit (microswitch 50) detects that the projector 1 is placed on a desk or the like, the operation screen image 41 for performing various operations necessary to project an image is not projected on the screen 40. In addition, it is possible to display only on the display unit 2. For this reason, when the projector 1 is used while being placed on a desk, the operator can operate without showing the operation screen image 41 for performing various operations to a participant other than the operator, for example, a conference participant. In addition, the attendees of the conference will not feel uncomfortable with the projected image on the operation screen.

  (10) When the micro switch 50 provided in the projector 1 is “OFF”, an operation screen image 41 for performing various operations necessary for projecting an image is projected on the screen 40. Therefore, when the projector 1 is used in a suspended state, the remote controller device 4 is operated to make various settings while viewing the operation screen image 41 projected on the screen 40 and displayed on the display unit 2 that is not used. Not contributing to the reduction of power consumption.

  (11) Settings for whether or not to display the operation screen image 41 on the display unit 2 and whether or not to project the operation screen image 41 can be stored in the memory 34b of the main circuit 34 in advance. Therefore, when the micro switch is turned “ON”, it is determined whether to display the operation screen image 41 on the display unit 2, to project, or to perform both display and projection according to the setting information read from the memory 34 b. be able to. Therefore, even when the projector 1 is used on a desk, not only the display unit 2 but also the operation screen image 41 can be projected on the screen 40 and can be set according to the convenience of the operator. It becomes possible.

  (12) The visibility of the display unit 2 is improved by dividing the screen of the display unit 2 into three types of display areas, that is, the System display unit 41a, the User display unit 41b, and the Information display unit 41c from above. Thus, the operability of the projector 1 is improved.

  (13) When the operator operates the projector 1, the user display section 41 b explains the next operation to be performed, so that the operation assistance is provided and the operation becomes easy. Further, since the display unit 2 is the touch panel 2a, it can be selected and set by directly touching the image, so that convenience for the operator is improved.

  (14) The operation screen image 41 for performing various operations necessary for projecting an image can be operated by both the touch panel 2a or the remote control device 4. For this reason, for example, when the touch panel 2a is not recognized even if it is operated, the operation can be performed using the remote control device 4. For example, when there is a defect in either one, the two can complement each other, and convenience is improved.

  (15) When the display image is rotated and displayed, there is no need to mechanically rotate the display unit 2 as in the prior art, so there is no need to consider the reliability of the rotation operation and the connection operation of the circuit wiring. Reliability for rotating and displaying the display image is improved.

The present invention is not limited to the above-described embodiment, and various changes and improvements can be added to the above-described embodiment. A modification will be described below.
(Modification 1) The User display section 41b of the display section 2 of the present embodiment is a switch area for setting and correcting various projection conditions necessary for projecting an image, and an operation screen having an initially set layout. Although the image 41 is used, the present invention is not limited to this, and the operator may have a function of freely customizing the layout of the operation screen image 41.
This implementation method will be described. When the customized switch is operated on the assumption that the customization switch is set in various projection condition items necessary for projecting an image or the customization switch is set on the User display unit 41b. Then, the customization program is read from the memory 34b in the main circuit 34 of the projector 1. And CPU34a performs a process with the read program and the operation signal by operating the operation screen image 41 displayed on the display part 2 of an operator. Then, the customized layout of the operation screen image 41 can be stored in the ROM in the IF control circuit 28 for customization. Alternatively, the operation of the IF control circuit 28 can be performed via an RS232-C of the external communication circuit 26, a USB (Universal Serial Bus), a LAN (Local Area Network), or the like using a personal computer or the like equipped with a customization program. It is also possible to directly rewrite the ROM that stores the screen image 41.
Thereby, since the operator can make the original operation screen image 41, the operation efficiency is further improved.

(Modification 2) The User display section 41b of the display section 2 of the present embodiment is a switch area for setting and correcting various projection conditions necessary for projecting an image. An operation screen image 41 having an initially set layout is used. However, the present invention is not limited to this, and a function (learning function) may be provided such that the operation switches are rearranged in the order of operation frequency with respect to the operation switches of the User display unit 41b and displayed on the display unit 2.
This implementation method will be described. Here, it is assumed that the CPU 34a counts the number of operations of the operation switches that have been operated so far with an internal counter and stores the counted result in the memory 34b. First, assuming that a learning switch is set in various projection condition items necessary for projecting an image or a learning switch is set in the User display unit 41b, the set learning switch is operated. Then, the main circuit 34 reads a learning program from the memory 34b. Then, the execution of the read learning program is started. Then, the number of operations corresponding to the stored operation switch is read from the memory 34b, and processing for arranging the setting items corresponding to the switches operated in descending order of the number of operations of the operation switch is executed, and stored in the ROM of the IF control circuit 28. It can be realized by memorizing.
As a result, the operator can immediately operate setting items that are frequently used, and the operation efficiency is further improved.

(Modification 3) In this embodiment, when there is no operation on the operation screen image 41 displayed on the display unit 2 and a predetermined time or more has elapsed, the display on the display unit 2 is turned off. Then, when the touch panel 2a is operated after being erased, a function of performing display again may be provided.
As an implementation method, the CPU 34a in the main circuit 34 measures the elapsed time after the switch operation, and when the elapsed time exceeds a set predetermined time, the operation screen image 41 displayed on the display unit 2 is displayed. Execute the erase process. Then, when the operation signal is first input to the main circuit 34 after the execution, it can be realized by executing a process of displaying the original operation screen image 41. This contributes to a reduction in power consumption of the projector 1.

  (Modification 4) The display unit 2 of the present embodiment employs a TFT type LCD for the panel. However, the present invention is not limited to this, and an MIM (Metal In Metal liquid crystal) type LCD or a DSTN (Dual Scan Super). A Twisted Nematic (LCD) or an organic EL display (organic electroluminescence display) can also be employed.

  (Modification 5) The display unit 2 of the present embodiment employs the resistive touch panel 2a as the touch panel 2a, but is not limited to this, and the capacitive coupling system, the capacitive system, the infrared system, and the ultrasonic wave. A touch panel such as a method can be adopted. When operating the touch panel, in addition to operating with a finger, when operating with a pen or the like, it is also possible to adopt a high-resolution method such as an electromagnetic induction method or an electrostatic coupling method.

  (Modification 6) The switch arrangement, shape, and the like of the remote control device 4 of the present embodiment are not limited to the present embodiment, and can be changed as appropriate within the scope of the present invention.

(Modification 7) In this embodiment, every time the VIEW switch 42c is operated, the direction of the operation screen image 41 is rotated and displayed every 90 °. However, every time the VIEW switch 42c is operated, 180 ° is displayed in two directions. It can also be displayed. In this embodiment, the rotation direction is clockwise rotation, but this may be reversed. Further, the VIEW switch 42c is not limited to one, and there may be a switch for selecting four directions so that the display direction of the display screen can be directly selected. In addition, operability can be improved by performing such setting by an operation on the operation screen image 41.
Further, the screen shape of the display unit 2 may be circular, and the orientation of the operation screen image 41 may be changed every predetermined angle (for example, 45 °) less than 90 °.

  (Modification 8) In this embodiment, the remote controller 4 is used as a direction detector carried by the operator. However, it may be portable to the operator as a more compact direction detector instead of using the remote control device 4 as well. In this case, the portability of the direction detector can be improved. When a direction detector is prepared separately from the remote control device 4, the projector 1 may be provided with a communication unit (for example, a wireless communication unit) dedicated to the direction detector.

  (Modification 9) In this embodiment, a vibration gyro is used as the position sensor 4a. However, it is not limited to a vibrating gyroscope, and may be a microgyro using micromachine technology. In this case, a smaller direction detector can be realized.

  (Modification 10) In the present embodiment, the microswitch 50 is used as a detection switch for detecting whether or not the projector 1 is placed on the desk. However, the tip of the fixed foot 14 using a pressure sensor and a strain gauge is used. It is also possible to install in the part 14a or the like. Alternatively, the distance can be measured using light.

1 is a schematic perspective view of a projector according to an embodiment of the invention. The schematic block diagram of embodiment. FIG. 3 is a diagram illustrating a configuration of a display unit and an operation screen image. The flowchart which shows the operation | movement after turning on a power until it projects. The figure which shows the example of a display in the step after turning on a power until it projects. The figure which shows the example of a display when a power supply is "OFF". The schematic plan view of a remote control device. The flowchart which shows operation | movement in determining the direction of an operation screen image. The figure which showed the direction of the operation screen image typically. The figure which shows the example of a display when the display direction of an operation screen image is changed. The figure which shows the example of a display displayed enlarged. The flowchart which shows operation | movement when two or more switches adjacent to a setting item are operated. The illustration provided with the detection part. The flowchart which shows the operation | movement in a detection part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Projector, 1a ... Upper surface part, 1b ... Front surface part, 1c ... Left side part, 1d ... Right side part, 1e ... Back part, 1f ... Bottom part, 1g ... Main body, 2 ... Display part, 2a ... Touch panel, 4 ... Remote control Device: 4a: Position sensor, 4b: Remote control transmission unit, 6: Remote control light receiving unit, 8: Projection lens, 9: Exhaust port, 10: Intake port, 11: Sound hole, 12: LED, 13: Height adjustable 14 ... fixed foot, 14a ... tip of fixed foot, 16 ... fixed portion, 20 ... power cable, 22 ... power supply circuit, 22a ... detection circuit, 22b ... switch circuit, 24 ... receiver and communication unit Remote control circuit, 26 ... external communication circuit, 28 ... operation screen display processing unit, authentication screen display processing unit, display orientation changing unit, enlarged screen display processing unit, IF control circuit constituting display screen return processing unit, 30 ... video Input circuit, 32... And an operation screen display processing unit, an authentication screen operation processing unit, a display orientation changing unit, an enlarged screen display processing unit, and a display screen return processing unit, and an operation reception processing unit, an authentication unit, a determination unit, and Main circuit as determination unit, 34a ... CPU, 34b ... memory as storage unit, 36 ... liquid crystal driving circuit for projection, 38 ... liquid crystal panel, 40 ... screen, 41 ... operation screen image, 41a ... System display unit, 41b ... User display section 41c Information display section 42 Setting screen image 42a Power switch 42b Escape switch 42c VIEW switch 42d Menu switch 42e Enter switch 42f Keystone correction switch 42g Input Source switch, 42h ... Color mode switch, 43 ... Password input screen, 43a ... Number switch, 4 ... Standby screen, 45 ... Lamp abnormality screen, 46 ... Abnormality notification screen, 47 ... Power OFF confirmation screen, 48 ... Caution screen, 50 ... Micro switch as detection unit (detection switch), 50a ... Moveable pin, 50b ... Terminals 60 ... Lower case 70 ... Microswitch circuit board 80 ... Desk top surface 90 ... Fixing member 100 ... Power switch provided on the remote control device 102 ... Jog switch used when selecting setting items, 104 ... Area corresponding to the display of the System display section, 106 ... Area corresponding to the source selection switch of the User display section, 108 ... Area corresponding to the numeric switch for password input of the User display section, 110 ... Position communication operation switch 110a ... LED for position communication operation display, 112 ... Remote control operation switch, 112a ... LED for remote control operation display, 11 4 ... Power switch for remote control device.

Claims (11)

A projector that magnifies and projects an image on a screen,
A display unit with a touch panel provided in the main body of the projector;
A receiver for receiving a signal from a remote control device for remotely operating the projector;
An operation screen display processing unit for displaying an operation screen image for performing various operations necessary for projecting the image on the projector on the display unit;
An instruction to select an item in the operation screen image for both the first operation signal based on the operation of the touch panel and the second operation signal based on the operation of the remote control device received via the receiving unit. And an operation reception processing unit that executes a predetermined process according to an item selected by the received operation signal. The projector according to claim 1, wherein
A power cable connected to the main unit,
A power connection detection unit for detecting that the power cable is connected to a power source;
A power supply switch circuit that is closed based on a detection signal in which the power cable from the power connection detection unit is connected to a power source;
An authentication screen display processing unit for displaying an authentication screen image on the display unit when power is supplied to the main body by closing the power supply switch circuit;
An authentication unit that accepts an authentication code input by operating the touch panel or the remote control device on the authentication screen image and performs an authentication process;
The operation screen display processing unit causes the display unit to display the operation screen image including at least a power switch operable by a touch panel when the authentication unit authenticates the authentication code. In the projector according to claim 1 or 2,
The display unit is fixed to the main body,
And a display orientation changing unit that changes the orientation of the image displayed on the display unit based on the signal when a signal specifying the display orientation of the image to be displayed on the display unit is given. Projector. The projector according to claim 3, wherein
Equipped with an operation unit for switching the display orientation,
The display orientation changing unit changes the orientation of an image displayed on the display unit based on an operation signal based on an operation of the operation unit. The projector according to claim 3, wherein
A communication unit that wirelessly receives a signal specifying a direction in which a direction detector carried by an operator is located with respect to the main body from the direction detector;
The display orientation changing unit is configured to change an orientation of an image displayed on the display unit so that a correct display orientation is obtained when the display unit is viewed from a direction specified based on the signal received via the communication unit. A projector characterized by changing. In the projector according to any one of claims 3 to 5,
The display orientation changing unit, when changing the orientation of an image displayed on the display unit, changes the layout of the operation screen image according to the display size of the display unit. In the projector according to any one of claims 1 to 6,
A determination unit that determines whether or not two or more adjacent items among the plurality of items in the operation screen image are selected based on an operation signal when the touch panel is operated;
An enlarged screen display processing unit for enlarging and displaying a part of the display area of the operation screen image including the selected two or more items when the determination unit determines that two or more items are selected; A projector characterized by comprising. The projector according to claim 7, wherein
A projector comprising: a return screen display processing unit for returning to a display state before the enlarged display when one item among a plurality of items in the enlarged display area is selected. In the projector according to any one of claims 1 to 8,
The projector is a projector that can be suspended from the ceiling,
A detection unit that detects that the main body is placed is provided, and the operation screen image is displayed on the display unit without projecting the operation screen image when detected by the detection unit. Projector. The projector according to claim 9, wherein
A projector that projects the operation screen image when the detection unit does not detect that the main body is placed. The projector according to claim 9 or 10,
Whether to display the operation screen image on the display unit, and a storage unit that stores in advance setting information whether to project the operation screen image,
When detected by the detection unit, the setting information is read from the storage unit, and the operation screen image is displayed on the display unit or the operation screen image is projected according to the read setting information. A projector comprising a determination unit for determining whether or not.

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