JP4817001B2 - Display device and method, recording medium, and program - Google Patents

Description

  The present invention relates to a display device and method, a recording medium, and a program, and more particularly to a display device and method, a recording medium, and a program that can notify a user of a state until an image is displayed. .

  In recent years, so-called thin displays such as LCD (Liquid Crystal Display) and PDP (Plasma Display Panel) have become widespread. These thin displays have advantages in that they are lighter and space-saving than CRT (Cathode Ray Tube) displays, and are therefore less restricted by the installation location.

  In addition, unlike a CRT display, the thin display does not require preheating, so that the screen can be displayed at the same time when the user turns on the power.

  Conventionally, a storage device that stores still images of multiple images is provided, and when the channel is switched, the stored image is displayed until the broadcast actually appears, so that the channel can be switched smoothly. There is a television receiver (see, for example, Patent Document 1).

  Further, it is detected that a video signal for generating a black screen (predetermined screen) is generated during video reproduction, and a video signal for generating a black screen when reproducing is generated. Until a video based on the stream data is output by generating a signal that causes an external television (monitor) to output one of the predetermined insertion screen and insertion signal, or a combination thereof. In the meantime, there is a video reproduction apparatus that outputs a predetermined insertion screen or insertion signal from an external television (for example, see Patent Document 2).

Furthermore, there is a digital broadcast receiving apparatus that generates a program guide based on program information stored in advance when the power is turned on, and displays the generated program guide by OSD (see, for example, Patent Document 3).
JP 2000-41197 A Utility model registration No. 3090056 JP 2003-163854 A

  However, the display device itself can display an image immediately, but if the video signal is digitally processed, it takes time to initialize (initialize) the processor for performing this processing. Therefore, there is a problem that it takes a certain time until the image is displayed on the screen after the user turns on the power.

  Normally, when the power of the display device is on, a green LED as a pilot lamp emits light. When the user turns on the power and activates the display device, the image is not displayed on the screen for a certain time even though the pilot lamp is lit. There was a risk of misunderstanding.

  On the other hand, even if the display device breaks down and the pilot lamp is lit, an image may not be displayed on the screen. That is, it is difficult for the user to determine whether or not the display device has failed during startup. In order to solve this problem, when the power of the display device is turned on, it is conceivable to display some screen immediately.

  For example, a television receiver disclosed in Japanese Patent Application Laid-Open No. 2000-41197 stores a still image in advance and displays the stored still image when it takes time until the image is displayed. However, the stored still image cannot be displayed until the image is displayed on the screen after the user turns on the power.

  Similarly, for example, the video playback device disclosed in Utility Model Registration No. 3090056 also has a predetermined insertion screen and insertion signal before the image is displayed on the screen after the user turns on the power. It was not possible to display an image by any one or a combination thereof.

  Further, for example, the digital broadcast receiving apparatus disclosed in Japanese Patent Application Laid-Open No. 2003-163854 generates a program guide from OS information stored in advance and displays it on the OSD when the user turns on the power. However, it is impossible to display accurate information until the image is displayed only by displaying the program guide on the screen.

  The present invention has been made in view of such a situation. When a user turns on a power, a predetermined image can be immediately displayed on a screen.

The display device of the present invention is based on a first display control means for controlling the display of the first image corresponding to the signal on the screen based on a signal supplied from the outside, and the display device is activated and normal. Second display control means for controlling the display of the second image, which is an image indicating that the display is operating, on the screen, and the display according to the signal supplied from the outside and stored in advance Determination means for determining a display time, which is a time for displaying the second image on the screen, based on a time required for starting the first display control means for each processing mode which is a method of processing executed by the apparatus. When the first display control means is being activated, the second image is displayed on the screen, and the first display control means is activated after the display time has elapsed since the user turned on the display device. When the is completed, the second image displayed on the screen Ri, as to display a first image on a screen, characterized in that it comprises a switching means for switching the display screen.

The display device of the present invention includes a clocking means for clocking and a generating means for generating a second image corresponding to a value obtained by subtracting the clocked result from the clocked result , and the switching means is based on the display time. When the value obtained by subtracting the time measurement result reaches a predetermined value, the display of the screen is switched so that the first image is displayed on the screen instead of the generated second image.

When the display on the screen is switched from the second image to the first image, the display device of the present invention is configured to suppress the output of the first display control unit so that the first image is not displayed. Output control means for controlling the display control means is provided.
The display device of the present invention can be obtained by measuring in advance the time required for starting each device of the display device for each processing mode that is a method of processing executed by the display device according to a signal supplied from the outside. Storage means for storing the display time, and the determining means determines the display time corresponding to the processing mode from the display times stored in the storage means.

The display method of the present invention is based on a first display control step for controlling display of a first image corresponding to a signal on the screen based on a signal supplied from the outside, and the display device is activated and is normal. A second display control step for controlling the display on the screen of a second image, which is an image indicating that the display is operating, and the display according to the signal supplied from the outside and stored in advance A display time, which is a time for displaying the second image on the screen, is determined based on the time required for starting the processing of the first display control step for each processing mode which is a method of processing executed by the apparatus. When the processing of the determination step and the first display control step is being activated, the second image is displayed on the screen, and the first display is performed after the display time has elapsed since the display device was turned on by the user. The start of the control step process is completed. When, instead of the second image displayed on the screen, so as to display a first image on a screen, characterized in that it comprises a switching step of switching the display screen.

The recording medium program of the present invention includes a first display control step for controlling display of a first image corresponding to a signal on a screen based on a signal supplied from the outside, and a display device being activated. And a second display control step for controlling the display of the second image, which is an image indicating that the image is operating normally, in accordance with the signal supplied from the outside and stored in advance. Based on the time required for starting the processing of the first display control step for each processing mode, which is the method of processing executed by the display device , the display time is the time for displaying the second image on the screen. When the process of the determination step to determine and the process of the first display control step is being activated, the second image is displayed on the screen, and the display time elapses after the display device is turned on by the user. Display control step processing When moving is complete, instead of the second image displayed on the screen, so as to display a first image on a screen, characterized in that it comprises a switching step of switching the display screen.

The program according to the present invention is based on a first display control step for controlling display of a first image corresponding to a signal on a screen based on a signal supplied from the outside, and the display device is being activated and is operating normally. A second display control step for controlling display of a second image, which is an image indicating that the device is operating, on the screen; and the display device stored in advance according to the signal supplied from the outside Determination for determining a display time, which is a time for displaying the second image on the screen, based on the time required for starting the processing of the first display control step for each processing mode which is the processing method executed by When the processing of the step and the first display control step is being activated, the second image is displayed on the screen, and the first display control is performed after the display time has elapsed since the user turned on the display device. Step processing has started When in, instead of the second image displayed on the screen, so as to display a first image on a screen, characterized in that it comprises a switching step of switching the display screen.

In the display device and method, the recording medium, and the program of the present invention, the first display control for each processing mode, which is a method of processing executed by the display device in response to an externally supplied signal stored in advance. The display time, which is the time for displaying the second image on the screen, is determined based on the time required for starting the means, and when the first display control means is being started, the second image is displayed on the screen. When the first display control means has been activated after the display time has elapsed since the display device was turned on by the user, the first image is displayed instead of the second image displayed on the screen. The display of the screen can be switched so as to display the image on the screen.

  According to the present invention, an image showing one's own state can be displayed. Further, according to the present invention, when the user turns on the power, a predetermined image can be displayed on the screen immediately. This allows the user to recognize a predetermined screen until the image is displayed on the screen, so that the user does not feel a long standby time until the image is displayed on the screen and operates normally. Therefore, even if it is out of order, it can be recognized and dealt with instantly.

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

  FIG. 1 is a view showing the appearance of the thin display 1. The thin display 1 is, for example, a thin television receiver (so-called thin television) constituted by an LCD, a PDP, or the like, a personal computer having a TV tuner function, and the like, and is an example of the display device of the present invention.

  The LCD panel 11 displays an image based on a signal supplied from the outside or a signal generated inside the thin display 1. Details of the LCD panel 11 will be described later. The speakers 12-1 and 12-2 output sound based on signals supplied from the outside. The stand 13 holds the orientation so that the orientation of the LCD panel 11 and the speakers 12-1 and 12-2 is constant.

  The power button 14 is a button for turning on or off the power of the thin display 1. The power LED (Light Emitting Diode) (pilot lamp) 15 is lit in green when the power button 14 is pressed and the power of the thin display 1 is turned on by a user operation, for example. When the power of the thin display 1 is turned off, the light is turned off. The power LED 15 is set so that the thin display 1 enters a standby (suspend) or sleep state when the power of the thin display 1 is turned off by a user's operation of a remote controller (hereinafter referred to as a remote controller) (not shown). So it lights red.

  The channel button 16 is a button for changing a program channel to be selected in accordance with a user operation. The volume button 17 is a button for changing the volume of the sound output from the speaker 12-1 and the speaker 12-2 in accordance with a user operation.

  The operations of the power button 14, the channel button 16, and the volume button 17 described above can also be executed by an operation corresponding to an operation of a remote controller (not shown) by the user.

  FIG. 2 is a block diagram showing an embodiment of a thin display 1 to which the present invention is applied.

  The thin display 1 includes an LCD panel 11, a tuner 61, an input switching unit 62, an external AV (Audio Visual) input unit 63-1, an external AV input unit 63-2, an image processing unit 64, a microcomputer (hereinafter referred to as a microcomputer). ) 65, ROM (Read Only Memory) 66, RAM (Random Access Memory) 67, OSD generation unit 68, and backlight 69.

  The tuner 61 is a broadcast signal corresponding to a broadcast wave of a television broadcast such as a terrestrial wave or a radio wave from a broadcast satellite received from the antenna 51 according to the designation of a broadcast station to be received according to a user operation. The broadcast signal supplied from 51 is demodulated, and the video signal obtained by the demodulation is supplied to the input switching unit 62.

  The tuner 61 supplies an audio signal obtained by demodulation to an audio processing unit (not shown). Then, the audio processing unit outputs audio from the speaker 12-1 and the speaker 12-2 (FIG. 1) based on the audio signal supplied from the tuner 61.

  The external AV input unit 63-1 is an interface such as a so-called pin input connection terminal, and video supplied from an external device 52-1 (for example, a video tape recorder) that outputs a connected analog video signal. The signal is supplied to the input switching unit 62.

  The external AV input unit 63-1 supplies the audio signal supplied from the external device 52-1 to the audio processing unit (not shown), so that the audio processing unit is connected to the external AV input unit 63-1. Based on the supplied audio signal, audio is output from the speaker 12-1 and the speaker 12-2.

  The input switching unit 62 is one of a video signal supplied from the tuner 61 and a video signal supplied from the external AV input unit 63-1 based on the control of the microcomputer 65 that controls each unit of the thin display 1. Only one video signal is selected, and the selected video signal is supplied to the image processing unit 64.

  The image processing unit 64 converts the video signal supplied from the input switching unit 62 into a video signal for display on the LCD panel 11, and displays an image on the LCD panel 11 based on the converted video signal.

  The image processing unit 64 is configured to include an A / D (Analog / Digital) conversion unit 81, a switch 82, a video processor 83, a ROM 84, and a RAM 85.

  The A / D conversion unit 81 converts the video signal that is an analog signal supplied from the input switching unit 62 into a video signal that is a digital signal. The A / D converter 81 supplies a video signal, which is a digital signal generated by the conversion, to the switch 82.

  The external AV input unit 63-2 is a so-called connection interface, and switches the video signal supplied from an external device 52-2 (for example, a DVD (Digital Versatile Disk) recorder) that outputs a digital video signal to the switch 82. To supply.

  The external AV input unit 63-2 supplies the audio signal supplied from the external device 52-2 to the audio processing unit (not shown) in the same manner as the external AV input unit 63-1. The unit outputs audio from the speaker 12-1 and the speaker 12-2 based on the audio signal supplied from the external AV input unit 63-2.

  The switch 82 selects one of the video signal supplied from the A / D converter 81 and the video signal supplied from the external AV input unit 63-2 under the control of the microcomputer 65. Then, the selected video signal is supplied to the video processor 83.

  Under the control of the microcomputer 65, the video processor 83 applies predetermined processing suitable for display on the LCD panel 11, such as processing for changing the resolution and processing for changing the hue, to the video signal supplied from the switch 82. After that, the processed video signal is supplied to the LCD panel 11 to display an image on the LCD panel 11. Also, the video processor 83 superimposes information (hereinafter referred to as OSD information) supplied from the OSD generation unit 68 for displaying various setting values and the like on the LCD panel 11 by the OSD on the video signal. The video signal on which the information is superimposed is supplied to the LCD panel 11 and the image on which the OSD information is superimposed is displayed on the LCD panel 11.

  Further, the video processor 83 reads and executes a program recorded in the ROM 84 as necessary. The video processor 83 supplies data to the RAM 85 or acquires data temporarily stored in the RAM 85 as necessary. For example, the video processor 83 generates a video signal to be displayed on the LCD panel 11 by applying a predetermined process to the video signal temporarily stored in the RAM 85.

  The microcomputer 65 controls each part of the thin display 1.

  The microcomputer 65 reads and executes a program recorded in the ROM 66 as necessary. The microcomputer 65 supplies data to the RAM 67 or acquires data temporarily stored in the RAM 67 as necessary.

  The OSD generation unit 68 generates OSD information for displaying various setting values and the like on the LCD panel 11 by the OSD under the control of the microcomputer 65, and supplies the generated OSD information to the video processor 83.

  The LCD panel 11 displays an image by transmitting light emitted from the backlight 69 in accordance with the video signal supplied from the video processor 83.

  The backlight 69 is a so-called lighting device made of a cold cathode tube or an LED. The backlight 69 is driven by an inverter or converter (not shown) controlled by the microcomputer 65 and irradiates light to the liquid crystal from the back side seen by the user of the LCD panel 11 (the back side of the liquid crystal is Illuminate). That is, by changing the output of the power supply supplied from the inverter or converter, the luminance of the backlight 69 changes, and thereby the luminance of the LCD panel 11 changes.

  The tuner 61 broadcasts broadcast waves corresponding to various broadcast waves received by the antenna 51, such as terrestrial analog broadcasting, terrestrial digital broadcasting, BS (Broadcasting Satellite) / CS (Communications Satellite) digital broadcasting, and the like. A signal can be provided with a function of demodulating.

  The external device 52-1 and the external device 52-2 are examples of devices connected to the thin display 1. In addition to the above-described examples, for example, an HDD (Hard Disk Drive) recorder, a personal computer, a television Any device that outputs a digital or analog video signal such as a game machine may be used. Further, in FIG. 2, the external device 52-1 and the external device 52-2 are composed of two external devices. Of course, three or more external devices are connected, but zero or one external device is connected. You may make it connect.

  FIG. 3 is a block diagram illustrating details of the video processor 83. The same parts as those shown in FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

  The video processor 83 is configured to include a main processor 91, an auxiliary circuit 92, and an output unit 93.

  The main processor 91 applies a predetermined process for displaying on the LCD panel 11 to the video signal supplied from the switch 82, and then supplies the video signal to which the process is applied to the output unit 93. Display an image.

  The auxiliary circuit 92 generates a video signal based on the OSD information indicating that the thin display 1 supplied from the OSD generation unit 68 is being activated, and supplies the video signal to the LCD panel 11 via the output unit 93. Then, an image corresponding to the OSD information (hereinafter referred to as an OSD image) is displayed on the LCD panel 11. That is, the auxiliary circuit 92 controls the display on the LCD panel 11 of an image indicating that the thin display 1 is being activated.

  The output unit 93 displays an image on the LCD panel 11 based on the video signal supplied from the main processor 91 or a video corresponding to the OSD information supplied from the auxiliary circuit 92 under the control of the microcomputer 65. An OSD image is displayed on the LCD panel 11 based on the signal. The output unit 93 switches the image to be displayed on the LCD panel 11 from the OSD image supplied from the auxiliary circuit 92 to the image supplied from the main processor 91 under the control of the microcomputer 65.

  That is, the output unit 93 supplies either the video signal from the main processor 91 or the video signal from the auxiliary circuit 92 to the LCD panel 11 under the control of the microcomputer 65.

  FIG. 4 is a block diagram showing the configuration of the control program 101 executed in the microcomputer 65.

  The control program 101 is stored in the ROM 66, for example. Alternatively, the control program 101 is appropriately stored in the RAM 67 from the ROM 66 and executed by the microcomputer 65. The control program 101 is configured to include an activation time determination unit 111, a counter 112, a display switching control unit 113, and a video output control unit 114.

  The activation time determination unit 111 reads the activation time corresponding to the processing mode stored in the ROM 66 and sets the read activation time in the counter 112. The activation time determination unit 111 supplies the activation time set in the counter 112 to the OSD generation unit 68.

  Here, the processing mode means that the thin display 1 is in accordance with a video signal supplied from the tuner 61 and a device connected to the thin display 1 (for example, the external device 52-1 and the external device 52-2). Each processing method to be executed.

  Specifically, the thin display 1 displays an image on the LCD panel 11 on the basis of a broadcast wave of a television broadcast such as a terrestrial wave received from an antenna 51 or a radio wave from a broadcast satellite via a tuner 61, for example. (Hereinafter, simply referred to as a tuner signal mode), or an image is displayed on the LCD panel 11 based on a video signal supplied from the external device 52-1 that outputs an analog video signal (hereinafter, referred to as a tuner signal mode). An image is simply displayed on the LCD panel 11 based on a video signal supplied from an external device 52-2 that outputs a digital video signal (hereinafter simply referred to as an analog video signal mode) (hereinafter simply referred to as a digital video signal mode). Called). That is, since the video signal is supplied by a plurality of methods, the thin display 1 executes processing corresponding to the video signal.

  The activation time is the time from when the user turns on the thin display 1 to when each part of the thin display 1 completes activation. For example, the activation time in the digital video signal mode is a time until the main processor 91 completes activation, that is, a time period during which the main processor 91 is in the middle of activation (during activation). In other words, it can be said that it is the time from when the user turns on the thin display 1 until the output unit 93 displays an image on the LCD panel 11 based on the video signal from the main processor 91.

  Further, as described above, the video signal supplied to the video processor 83 differs depending on the device used depending on the processing mode such as the tuner signal mode, the analog video signal mode, or the digital video signal mode. The startup time may also be different. That is, the activation time may not be the same due to different processing modes. Therefore, by setting the activation time corresponding to each processing mode, the optimum activation time can be selected even when the activation times are not the same because the devices used are different.

  For example, the startup time in the tuner signal mode is equal to the longer of the time until the main processor 91 completes startup and the time until the tuner 61 completes startup.

  Note that these activation times are set in advance as factory default settings and stored in the ROM 66 by, for example, measuring the rise time (time until activation) of each device in advance for each mode. Specifically, for example, the ROM 66 stores a startup time of “10 seconds” for the tuner signal mode, and stores a startup time of “12 seconds” for the analog video signal mode. For the digital video signal mode, an activation time of “8 seconds” is stored.

  In addition, the time from when the user turns on the thin display 1 to when the output unit 93 displays the OSD image on the LCD panel 11 based on the OSD information from the auxiliary circuit 92 is taken into consideration during this startup time. It is also possible to do. For example, when it takes 1 second for the output unit 93 to display an image on the LCD panel 11 based on the OSD information from the auxiliary circuit 92, 1 second is subtracted from the startup time stored in the ROM 66 in advance. As a result, a more accurate start-up time can be stored.

  The counter 112 decrements the value set in itself every second as the time elapses, so that the output unit 93 is connected to the main processor 91 after the user turns on the thin display 1. Based on the video signal, the time until the image is displayed on the LCD panel 11 is counted.

  The display switching control unit 113 controls the output unit 93 to display the OSD image on the LCD panel 11 based on the video signal corresponding to the OSD information supplied from the auxiliary circuit 92. In addition, the display switching control unit 113 controls the output unit 93 to display an image to be displayed on the LCD panel 11 from an OSD image based on a video signal supplied from the auxiliary circuit 92, and a video supplied from the main processor 91. Switch to the image by the signal.

  The video output control unit 114 performs control so that the video signal is not output from the main processor 91 (mute) or cancels mute when switching the video signal to the output unit 93 in order to prevent noise generation. Thus, control is performed so that a video signal is output from the main processor 91.

  Incidentally, as described above, since the thin display 1 digitally processes the video signal, a certain period of time from when the user turns on the power to when the main processor 91 displays an image on the LCD panel 11 is displayed. Necessary.

  Therefore, in the present invention, the auxiliary circuit 92 is provided in the video processor 83 in addition to the main processor 91 for executing image processing, so that the auxiliary circuit 92 is displayed until the main processor 91 displays an image on the LCD panel 11. Is displayed on the LCD panel 11 to indicate that it is being activated. Hereinafter, the display control processing by the video processor 83, which is the details of the processing, will be described with reference to the flowchart of FIG. 5, and then, as a more specific example, an LCD panel will be described with reference to FIGS. A process of displaying the remaining time until an image is displayed on the display 11 will be described.

  First, display control processing by the thin display 1 will be described with reference to the flowchart of FIG.

  In step S <b> 1, the auxiliary circuit 92 displays an image (hereinafter referred to as a standby image) indicating that it takes time until the image is displayed, for example, when the user presses the power button 14 of the thin display 1. The signal is supplied to the output unit 93. The output unit 93 supplies the video signal from the auxiliary circuit 92 to the LCD panel 11 and causes the LCD panel 11 to display a standby image.

  For example, in step S <b> 1, the auxiliary circuit 92 supplies a video signal corresponding to the OSD information supplied from the OSD generation unit 68 to the output unit 93 when the user presses the power button 14 of the thin display 1. An OSD image is displayed on the LCD panel 11 by supplying a video signal to the LCD panel 11 via the output unit 93.

  In step S2, the microcomputer 65 receives the main processor 91 based on a signal (hereinafter referred to as a flag) indicating that the main processor 91 can supply the video signal. It is determined whether 91 is activated.

  If it is determined in step S2 that the main processor 91 is not activated, the process returns to step S1 and the above-described processing is repeated. That is, the standby image is displayed on the LCD panel 11 until the main processor 91 is activated.

  On the other hand, if it is determined in step S2 that the main processor 91 has been started by supplying the flag, the process proceeds to step S3, and the output unit 93 outputs the result to the LCD panel 11 under the control of the microcomputer 65. The image is switched from the standby image based on the video signal supplied from the auxiliary circuit 92 to the image based on the video signal supplied from the main processor 91.

  In step S4, the main processor 91 applies a predetermined process for displaying on the LCD panel 11 to the video signal supplied from the switch 82, and then supplies the video signal to which the process is applied to the output unit 93 for output. By supplying a video signal to the LCD panel 11 via the unit 93, an image is displayed on the LCD panel 11, and the process ends.

  In this manner, since the auxiliary circuit 92 outputs the standby image data and displays the standby image on the LCD panel 11 until the main processor 91 is activated and outputs the video signal, the user can display the image. Since it is possible to recognize that the thin display 1 is operating normally, it is possible to recognize and respond instantaneously even if it is out of order.

  Next, as a more specific example, a process for displaying the remaining time until an image is displayed on the LCD panel 11 using the OSD will be described. First, the operation of the thin display 1 will be described with reference to the timing chart of FIG. 6, and then the processing of the countdown display control will be described with reference to the flowchart of FIG.

  FIG. 6 is a timing chart for explaining the operation of the thin display 1.

  In FIG. 6, in order from the top in the figure, a timing chart showing the power state of the thin display 1, a timing chart showing the output of the video signal according to the OSD information of the auxiliary circuit 92, and the output of the video signal of the main processor 91 A timing chart is shown. Further, the horizontal direction in the figure represents a time axis, and time elapses from the left to the right in the figure as indicated by the lower arrow in the figure.

  In the example shown in FIG. 6, time T1 (time from time ta to time tb) is the time when the auxiliary circuit 92 of the video processor 83 is activated after the user turns on the thin display 1 and the OSD The time until the image is displayed on the LCD panel 11 is shown. The time T2 (the time from the time ta to the time tc) is activated by the main processor 91 of the video processor 83 after the user turns on the thin display 1. The time until the image is displayed on the LCD panel 11 is shown. Furthermore, time T3 (time from time tb to time tc) indicates a time during which the auxiliary circuit 92 displays the OSD image on the LCD panel 11.

  The OSD generation unit 68 supplies OSD information indicating the time until time tc to the auxiliary circuit 92. The auxiliary circuit 92 generates a video signal that displays the time until time tc. That is, the time T3 corresponds to a number that is first displayed on the LCD panel 11 by the OSD information.

  As shown in FIG. 6, for example, at time ta, the power button 14 of the thin display 1 is pressed by the user, for example, so that the power level is low (hereinafter simply referred to as “L”). To a high level (hereinafter simply referred to as “H”) (supply of power is started).

  At this time, since the auxiliary circuit 92 does not output the video signal corresponding to the OSD information to the output unit 93, the output level remains “L”, and the main processor 91 also outputs the video signal. As a result, the output level remains “L”.

  In the following, a state where the power of the thin display 1 is turned on will be described, so that the level of the power remains “H”.

  Since the auxiliary circuit 92 can display the OSD information at the time tb (after the time T1 has elapsed from the time ta), the output level of the auxiliary circuit 92 changes from “L” to “H”. To do. That is, the auxiliary circuit 92 displays the OSD image on the LCD panel 11 via the output unit 93 based on the new video signal corresponding to the OSD information supplied from the OSD generation unit 68.

  At this time, since the main processor 91 does not output the video signal, the output level remains “L”.

  Since the auxiliary circuit 92 continues to output the video signal corresponding to the OSD information to the output unit 93 from the time tb to the time tc, the output level of the auxiliary circuit 92 remains “H”. That is, during this time, an OSD image is displayed on the LCD panel 11, and the number displayed as the OSD image decreases every second.

  At this time, since the main processor 91 does not output the video signal, the output level remains “L”.

  At the time tc (after the time T3 has elapsed from the time tb), the main processor 91 is able to output the video signal after completing the initialization (initialization) process for digitally processing the video signal. Therefore, the output level of the main processor 91 changes from “L” to “H”. Accordingly, since the auxiliary circuit 92 does not need to display the OSD image on the LCD panel 11, the output level of the auxiliary circuit 92 changes from “H” to “L”.

  That is, the LCD panel 11 displays an image based on the video signal output from the main processor 91 instead of the OSD image based on the video signal corresponding to the OSD information output from the auxiliary circuit 92. In other words, the output unit 93 switches the image to be displayed on the LCD panel 11 from the OSD image supplied from the auxiliary circuit 92 to the image supplied from the main processor 91.

  At time tc, if the image displayed on the LCD panel 11 is switched as it is from the OSD image output from the auxiliary circuit 92 to the image output from the main processor 91, noise is generated. The LCD panel 11 is controlled so as not to display an image (muted).

  In this way, the thin display 1 displays the remaining time until the image is displayed by the OSD image until the image is displayed on the LCD panel 11, so the user confirms the remaining time. In this way, it is possible to recognize how long the image will be displayed.

  Next, a countdown display control process by the thin display 1 will be described with reference to a flowchart of FIG.

  In step S <b> 11, the microcomputer 65 makes an inquiry to the OSD generation unit 68 to determine whether OSD information can be generated (whether the OSD generation unit 68 has been activated).

  If it is determined in step S11 that OSD information cannot be generated, the process returns to step S11 and the above-described process is repeated. That is, the microcomputer 65 stands by until the OSD generation unit 68 can generate OSD information.

  On the other hand, if it is determined in step S11 that OSD information can be generated, the process proceeds to step S12, where the activation time determination unit 111 reads the activation time corresponding to the processing mode stored in the ROM 66, and reads the activation time read out. Is set in the counter 112. The activation time determination unit 111 supplies the activation time set in the counter 112 to the OSD generation unit 68.

  That is, the activation time is an initial value set in the counter 112.

  For example, in step S12, the activation time determination unit 111 determines that the current processing mode is a processing mode that is a tuner signal mode based on information regarding the input switching unit 62 and the switch 82 controlled by the microcomputer 65. Then, the activation time that is “10 seconds” corresponding to the tuner signal mode is read from the activation time stored in the ROM 66, and the read activation time that is “10 seconds” is set in the counter 112. The activation time determination unit 111 supplies the value set in the counter 112 that is “10 seconds” to the OSD generation unit 68.

  In step S <b> 13, the OSD generation unit 68 generates OSD information based on the value set in the counter 112 supplied from the activation time determination unit 111. The OSD generation unit 68 supplies the generated OSD information to the auxiliary circuit 92. For example, in step S13, the OSD generation unit 68 generates and generates OSD information “10” based on the value set in the counter 112 “10 seconds” supplied from the activation time determination unit 111. The OSD information is supplied to the auxiliary circuit 92.

  In step S14, the display switching control unit 113 controls the output unit 93 to display the OSD image on the LCD panel 11 based on the video signal corresponding to the OSD information supplied from the auxiliary circuit 92. For example, in step S14, the display switching control unit 113 controls the output unit 93 to be “10” based on the video signal corresponding to the OSD information “10” supplied from the auxiliary circuit 92. An OSD image is displayed on the LCD panel 11.

  FIG. 8 shows an example of the LCD panel 11 that displays an OSD image. The same parts as those shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

  In the lower right of the LCD panel 11, an OSD image 121 of “10” indicating that it takes another 10 seconds to display the image on the LCD panel 11 is displayed.

  As described above, since the OSD image 121 is displayed on the LCD panel 11, the user can recognize that the image is displayed after the time displayed on the OSD image 121 has elapsed, and the thin display 1 fails. It can be recognized that it is operating normally.

  Returning to the flowchart of FIG. 7, in step S <b> 15, the counter 112 determines whether or not one second has elapsed from the time when the value was previously set in itself.

  If it is determined in step S15 that the time has not passed 1 second, the process returns to step S15 and the above-described processing is repeated. That is, the counter 112 stands by until the time of 1 second elapses from the time when the value was previously set in itself.

  On the other hand, if it is determined in step S15 that the time has elapsed for 1 second, the process proceeds to step S16, and the counter 112 subtracts 1 from the value set in itself. For example, in step S <b> 16, the counter 112 subtracts 1 from the value “10” set to itself and sets the value “9”.

  In step S17, the microcomputer 65 determines whether or not the value set in the counter 112 is “0”.

  If it is determined in step S17 that the value is not “0”, the process returns to step S13 and the above-described process is repeated. That is, for example, by repeating the processing from step S13 to step S17, as the value set in the counter 112 decreases every second such as 9, 8, 7,. The OSD image (for example, OSD image 121) displayed on the screen also decreases every second like 9, 8, 7,.

  By repeating the processing from step S13 to step S17, the value set in the counter 112 becomes “0”. In step S17, the microcomputer 65 sets the value set in the counter 112 to “0”. In step S18, the OSD generation unit 68 generates OSD information “0” based on the value set in the counter 112 “0” supplied from the activation time determination unit 111, and generates the generated OSD. Information is supplied to the auxiliary circuit 92.

  In step S <b> 19, the display switching control unit 113 controls the output unit 93 so that the OSD image “0” is based on the video signal corresponding to the OSD information “0” supplied from the auxiliary circuit 92. Is displayed on the LCD panel 11.

  FIG. 9 is an example of the LCD panel 11 that displays an OSD image. The same parts as those shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

  In the lower right of the LCD panel 11, it is shown that it takes another 0 seconds until the image is displayed on the LCD panel 11, that is, “0” indicating that the image is soon to be displayed on the LCD panel 11. OSD image 131 is displayed.

  Returning to the flowchart of FIG. 7, in step S <b> 20, the microcomputer 65 determines whether or not a flag has been supplied from the main processor 91. For example, the main processor 91 supplies a signal “1” to the microcomputer 65 as a signal indicating that the video signal can be supplied to the output unit 93.

  If it is determined in step S20 that no flag is supplied from the main processor 91, the process returns to step S20 and the above-described process is repeated. That is, the microcomputer 65 is on standby until a flag is supplied from the main processor 91. In this case, the LCD panel 11 stands by with the OSD image “0” displayed (for example, the OSD image 131 “0” in FIG. 9).

  If it is determined in step S20 that the flag has been supplied from the main processor 91, the process proceeds to step S21, and the video output control unit 114 performs control so that the video signal is not output from the main processor 91 in order to prevent noise generation. Yes (mute).

  In step S <b> 22, the display switching control unit 113 controls the output unit 93 to change the image displayed on the LCD panel 11 from the OSD image by the video signal corresponding to the OSD information supplied from the auxiliary circuit 92. Switching is performed so that an image based on the video signal supplied from the processor 91 is displayed.

  For example, in step S22, the display switching control unit 113 controls the output unit 93 in the processing mode which is the tuner signal mode, and the OSD supplied from the auxiliary circuit 92 with the image displayed on the LCD panel 11 is controlled. Corresponds to broadcast waves of television broadcasts such as terrestrial waves received from the antenna 51 and radio waves from broadcast satellites, which are supplied from the main processor 91, from an OSD image which is “0” by a video signal corresponding to information. The broadcast signal is switched so that an image based on the video signal obtained by applying a predetermined process to the broadcast signal supplied from the antenna 51 is displayed.

  In the process of step S21, the video output control unit 114 controls the video signal not to be output from the main processor 91. Therefore, in the process of step S22, the image displayed on the LCD panel 11 by the output unit 93. Only the output source is switched (the auxiliary circuit 92 is switched to the main processor 91), and no image is displayed on the LCD panel 11.

  In step S <b> 23, the video output control unit 114 cancels mute and controls the video signal to be output from the main processor 91 (that is, controls to display an image on the LCD panel 11). The process ends.

  That is, since the video signal supplied from the main processor 91 is displayed as an image on the LCD panel 11, the user can recognize the image displayed on the thin display 1.

  Thus, the remaining time until the image is displayed on the screen can be displayed on the LCD panel 11 by the OSD image. As a result, the user can recognize the remaining time until the image is displayed, so that the user does not feel a long standby time until the image is displayed, and the thin display 1 is operating normally. Since it can also be recognized, even if it is out of order, it can be recognized and dealt with instantly.

  In the example described above, the image displayed on the LCD panel 11 by the auxiliary circuit 92 has been described as an OSD image. However, in the present invention, the image displayed on the LCD panel 11 by the auxiliary circuit 92 is an OSD image. Not limited to, for example, an image (character) indicating that it takes time until the image is displayed. The user can recognize that it takes a certain time until the image is displayed. That's fine.

  In the above-described example, the LCD has been described as an example of the thin display 1, but the present invention is not limited thereto, and may be applied to, for example, a PDP, an organic EL (Electro Luminescence) display, and the like. Furthermore, in the above-described example, the thin display 1 has been described. However, the present invention is not limited thereto, and may be applied to devices that perform digital processing, such as a set-top box and a DVD recorder.

  In addition, it is a function for displaying the remaining time until the image of the present invention is displayed on the screen as an OSD image. For example, it is possible to select not to display the remaining time by operating a device menu or the like. is there.

  The series of processes described above can be executed by hardware, but can also be executed by software. When a series of processing is executed by software, a program constituting the software may execute various functions by installing a computer incorporated in dedicated hardware or various programs. For example, it is installed from a recording medium in a general-purpose personal computer or the like.

  FIG. 10 is a block diagram showing an example of the configuration of a personal computer that executes the above-described series of processing by a program. A CPU (Central Processing Unit) 151 executes various processes according to programs recorded in the ROM 152 or the recording unit 158. The RAM 153 appropriately stores programs executed by the CPU 151, data, and the like. These CPU 151, ROM 152, and RAM 153 are connected to each other by a bus 154.

  An input / output interface 155 is also connected to the CPU 151 via the bus 154. The input / output interface 155 is connected to an input unit 156 composed of a keyboard, a mouse, a microphone, and the like, and an output unit 157 composed of a display, a speaker, and the like. The CPU 151 executes various processes in response to commands input from the input unit 156. Then, the CPU 151 outputs an image or the like obtained as a result of the processing to the output unit 157.

  The recording unit 158 connected to the input / output interface 155 includes, for example, a hard disk and records programs executed by the CPU 151 and various data. The communication unit 159 communicates with an external device via the Internet or other networks. In the case of this example, the communication unit 159 operates as an interface with the outside that acquires an input image or outputs an output image.

  Alternatively, the program may be acquired via the communication unit 159 and recorded in the recording unit 158.

  The drive 170 connected to the input / output interface 155 drives a magnetic disk 181, an optical disk 182, a magneto-optical disk 183, or a semiconductor memory 184 when they are mounted, and programs and data recorded there. Get etc. The acquired program and data are transferred to the recording unit 158 and recorded as necessary.

  As shown in FIG. 10, a recording medium storing a program for performing a series of processing is distributed to provide a program to a user separately from a computer. Disc), optical disc 182 (including compact disc-read only memory (CD-ROM), DVD (digital versatile disc)), magneto-optical disc 183 (including MD (mini-disc) (trademark)), or semiconductor In addition to the package media including the memory 184, the program is stored in the ROM 152 in which the program is recorded, the hard disk included in the recording unit 158, and the like provided to the user in advance. .

  The program for executing the series of processes described above is installed in a computer via a wired or wireless communication medium such as a local area network, the Internet, or digital satellite broadcasting via an interface such as a router or a modem as necessary. You may be made to do.

  Further, in the present specification, the step of describing the program stored in the recording medium is not limited to the processing performed in chronological order according to the described order, but is not necessarily performed in chronological order. It also includes processes that are executed individually.

It is a figure which shows the external appearance of a thin display. It is a block diagram which shows one Embodiment of the thin display to which this invention is applied. It is a block diagram explaining the detail of a video processor. It is a block diagram which shows the structure of the control program performed in a microcomputer. It is a flowchart explaining the process of the display control by a thin display. It is a timing chart explaining operation | movement of a thin display. It is a flowchart explaining the process of the countdown display control by a thin display. It is an example of the LCD panel which displays an OSD image. It is an example of the LCD panel which displays an OSD image. It is a block diagram explaining the structure of a personal computer.

Explanation of symbols

  1 thin display, 11 LCD panel, 64 image processing unit, 65 microcomputer, 68 OSD generation unit, 81 A / D conversion unit, 82 switch, 83 video processor, 91 main processor, 92 auxiliary circuit, 93 output unit, 101 control program , 111 start-up time determination unit, 112 counter, 113 display switching control unit, 114 video output control unit, 181 magnetic disk, 182 optical disk, 183 magneto-optical disk, 184 semiconductor memory

Claims (7)

In a display device that displays an image on a screen,
First display control means for controlling display of the first image corresponding to the signal on the screen based on an externally supplied signal;
Second display control means for controlling the display of the second image, which is an image indicating that the display device is being activated and operating normally, on the screen;
Based on the time required for starting up the first display control means for each processing mode, which is a method of processing executed by the display device in response to the signal supplied from the outside , stored in advance, Determining means for determining a display time which is a time during which the second image is displayed on the screen;
When the first display control means is being activated, the second image is displayed on the screen, and the first display is displayed after the display time has elapsed since the user turned on the display device. Switching means for switching the display of the screen so that the first image is displayed on the screen instead of the second image displayed on the screen when activation of the control means is completed. A display device characterized by that. A timing means for timing,
Generating means for generating the second image corresponding to a value obtained by subtracting a time measurement result from the display time;
The switching means displays the first image on the screen instead of the generated second image when a value obtained by subtracting the time measurement result from the display time reaches a predetermined value. The display device according to claim 1, wherein display of the screen is switched as described above. When the display of the screen is switched from the second image to the first image, the first display is configured to suppress the output of the first display control unit so that the first image is not displayed. The display device according to claim 2, further comprising output control means for controlling the control means. The display obtained by measuring in advance the time required for starting each device of the display device for each processing mode that is a method of processing executed by the display device according to the signal supplied from the outside It further comprises storage means for storing time,
The display device according to claim 1, wherein the determining unit determines the display time corresponding to the processing mode from the display times stored in the storage unit. In a display method of a display device that displays an image on a screen,
A first display control step for controlling the display of the first image corresponding to the signal on the screen based on a signal supplied from the outside;
A second display control step for controlling the display of the second image, which is an image indicating that the display device is being activated and operating normally, on the screen;
Based on the time required for starting the processing of the first display control step for each processing mode, which is a method of processing executed by the display device in response to the signal supplied from the outside , stored in advance Determining a display time which is a time for which the second image is displayed on the screen;
When the process of the first display control step is being activated, the second image is displayed on the screen, and the display time elapses after the display device is turned on by the user. Switching to switch the display of the screen so that the first image is displayed on the screen instead of the second image displayed on the screen when the start of the display control step processing is completed A display method characterized by comprising steps. A display processing program for displaying an image on a screen,
A first display control step for controlling the display of the first image corresponding to the signal on the screen based on a signal supplied from the outside;
A second display control step for controlling the display of the second image, which is an image indicating that the display device is being activated and operating normally, on the screen;
Based on the time required for starting the processing of the first display control step for each processing mode, which is a method of processing executed by the display device in response to the signal supplied from the outside , stored in advance Determining a display time which is a time for which the second image is displayed on the screen;
When the process of the first display control step is being activated, the second image is displayed on the screen, and the display time elapses after the display device is turned on by the user. Switching to switch the display of the screen so that the first image is displayed on the screen instead of the second image displayed on the screen when the start of the display control step processing is completed A recording medium on which a computer-readable program is recorded. In a program for causing a computer of a display device to display an image on a screen to perform display processing,
A first display control step for controlling the display of the first image corresponding to the signal on the screen based on a signal supplied from the outside;
A second display control step for controlling the display of the second image, which is an image indicating that the display device is being activated and operating normally, on the screen;
Based on the time required for starting the processing of the first display control step for each processing mode, which is a method of processing executed by the display device in response to the signal supplied from the outside , stored in advance Determining a display time which is a time for which the second image is displayed on the screen;
When the process of the first display control step is being activated, the second image is displayed on the screen, and the display time elapses after the display device is turned on by the user. Switching to switch the display of the screen so that the first image is displayed on the screen instead of the second image displayed on the screen when the start of the display control step processing is completed A program characterized by including steps.

Images