JPH09219871A - Projector device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display a pattern, etc., by a single projector device. SOLUTION: When a pattern display request is inputted from an input operation part 11, a system control part 10 supplies deflection condition data for executing pattern display stored in a pattern display data storage part 13 to a main deflecting part 7 and a sub-deflecting part 8. Each deflecting part 7, 8 controls the deflection condition of each projecting type CRT of red, blue and green respectively on the basis of the deflection condition data. As the result of various changing of the deflection condition of a video signal 9a outputted from a test signal generating part 9, various kinds of the patterns are displayed on a screen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a projector device such as a three-tube type projection television, and more specifically, various patterns can be displayed on a screen by arbitrarily designating a deflection condition of each CRT. The present invention relates to a projector device.

[0002]

2. Description of the Related Art Red, green, and blue (RGB) primary color images are generated by red, green, and blue projection CRTs, and color images are displayed by superimposing the primary color images on a screen. Projector devices such as projection type televisions are known.

A three-tube type projector device using a CRT adjusts items common to each CRT such as the position and amplitude of a display image, and image distortion and convergence (color misregistration correction) for each CRT. And a primary color corresponding adjustment unit (registration adjustment unit). The adjustment data such as the image display position on the screen and the size of the display image, and the registration adjustment data for each CRT are
Stored in non-volatile memory. The main deflection unit generates a horizontal deflection signal and a vertical deflection signal common to each CRT based on various common adjustment data stored in the nonvolatile memory. The sub-deflection unit generates a sub-horizontal signal and a sub-vertical deflection signal for each CRT based on the registration adjustment data. The horizontal deflection signal and the vertical deflection signal common to each CRT are supplied to the horizontal deflection coil and the vertical deflection coil of each CRT, respectively. Each CRT
The sub-horizontal signal and sub-vertical deflection signal generated for each
It is supplied to the horizontal sub-deflection coil and the vertical sub-deflection coil of the corresponding CRT, respectively. By performing registration adjustment for each CRT, a color image without color shift is combined.

[0004]

A conventional projector device can receive a received video signal of a television broadcast or a reproduced video signal of a video tape recorder (VTR) as an input and display the video on a screen. However, when the television or VTR is not used, even if the screen is used as an interior decoration by displaying an image on the screen or an arbitrary pattern is displayed on the screen, the projector device alone is used. However, it was not possible to display arbitrary images and patterns.
In order to display an arbitrary image, pattern, etc., there is no choice but to prepare a video tape or the like on which the image, pattern, etc. to be displayed is recorded and reproduce it on a VTR or the like.

Further, when the projector device is used as a display device of a personal computer or the like, for example, a pattern that changes with time in order to prevent burning of a CRT phosphor caused by the same image being displayed for a long time is displayed. Even if an attempt is made to display the pattern, such a pattern cannot be displayed only by the projector device, and it has been necessary to generate a time-varying pattern or the like with a personal computer or the like and supply it to the projector device.

The present invention has been made to solve such a problem, and an object thereof is to provide a projector device capable of displaying a pattern or the like without supplying a video signal from another device or the like.

[0007]

In order to solve the above-mentioned problems, a projector apparatus according to the present invention includes an adjustment data storage section for storing adjustment data of deflection conditions of each projection type CRT for red, green and blue, and this adjustment. A deflection unit that deflects each projection CRT based on the adjustment data stored in the data storage unit, a pattern display data storage unit that stores deflection condition data for performing pattern display, and a pattern display request from the input operation unit. When the input is supplied, the deflection unit is controlled to perform the deflection operation based on the deflection condition data for displaying the pattern stored in the pattern display data storage unit, and the pattern display request input is supplied. If not, a system control unit for controlling the deflection unit to perform a deflection operation based on the deflection condition adjustment data stored in the adjustment data storage unit is provided. .

The projector device according to the present invention is
Various patterns can be displayed on the screen by arbitrarily controlling the deflection conditions of the green and blue projection CRTs. When displaying a received image of a television broadcast or a reproduced image of a VTR, the red, green, and blue projection type CRTs are deflected based on the adjustment data stored in the adjustment data storage unit, so that image distortion is caused. A good image with no color shift or the like is displayed.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a block diagram of a projector device according to the present invention. The projector device 1 includes red, blue and green projection type CRTs 2, 3, 4
And various circuit units 5 to 12, an optical system and a screen (not shown).

The projector device 1 has four operation modes: an image display mode, an adjustment mode, a pattern display mode, and a pattern display data setting mode. In the image display mode, an image based on a television broadcast reception signal input to the video signal input terminal 1a, a VTR reproduction signal, an image signal from a personal computer, etc. is displayed on the screen. In the adjustment mode, it is possible to select an arbitrary pattern from a plurality of types of evaluation patterns prepared in advance and display it on the screen to adjust color misregistration and image distortion. In the pattern display mode, a pattern that changes in a fixed or continuous manner can be displayed on the screen by appropriately changing the deflection condition of an arbitrary pattern. In the pattern display data setting mode, the user or the like can freely create the pattern to be displayed in the pattern display mode based on the menu displayed on the screen.

The composite video signal 1b input to the video signal input terminal 1a is supplied to the sync separation section 5 and the video signal processing section 6. The sync separator 5 separates the horizontal sync signal 5a and the vertical sync signal 5b from the composite video signal 1b and outputs them. The respective synchronization signals 5a and 5b are supplied to the main deflection section 7 and the sub deflection section 8, respectively.

The video signal processing unit 6 includes a system bus 10a.
When the image display mode is designated by the operation mode command supplied via the, the composite video signal 1b is selected, and the primary color signals R,
G and B are generated and output. The video signal processing unit 6 outputs the test signal output from the test signal generating unit 9 when the adjustment mode and the pattern display mode are designated by the operation mode command supplied via the system bus 10a.
Primary color signals R, G, B based on the pattern display video signal 9a
Generate and output In the adjustment mode and the pattern display mode, the video signal processing unit 6 is configured so that the display color and brightness can be arbitrarily set based on the color designation command and the luminance designation command supplied via the system bus 10a. The red, green and blue color signals R, G and B are red,
Cathode electrodes 2 of green and blue projection CRTs 2, 3 and 4
a, 3a, 4a, respectively.

When the image display mode is designated by the operation mode command supplied via the system bus 10a, the main deflection section 7 selects each of the sync signals 5a and 5b output from the sync separation section 5. , Each selected sync signal 5
The horizontal deflection signal 7a and the vertical deflection signal 7b synchronized with a and 5b are generated and output. The main deflection unit 7 outputs the test signal output from the test signal generation unit 9 when the adjustment mode and the pattern display mode are designated by the operation mode command supplied via the system bus 10a.
Horizontal sync signal 9b and vertical sync signal 9 for pattern display
c is selected, and the horizontal deflection signal 7a and the vertical deflection signal 7b synchronized with the selected synchronizing signals 9b and 9c for test / pattern display are generated and output. The horizontal and vertical deflection signals 7a and 7b output from the main deflection unit 7 are
Main deflection coils 2b, 3b of each projection type CRT 2, 3, 4
4b is supplied in parallel.

In the image display mode and the adjustment mode, the main deflection section 7 uses the respective deflection signals 7a, 7a, 7c 7b is generated. In the pattern display mode, when the main deflection unit 7 is supplied with data for changing the horizontal position, horizontal amplitude, vertical position, vertical amplitude, etc. for pattern display via the system bus 10a, the supplied data is supplied. The deflection signals 7a and 7b are generated based on the above.

The main changing section 7 has a high voltage output circuit,
The high voltage signal 7c generated by this high voltage output circuit is applied in parallel to the anode electrodes 2c, 3c and 4c of the respective projection type CRTs 2, 3 and 4.

The sub-deflection unit 8 selects each of the synchronization signals 5a and 5b output from the synchronization separation unit 5 when the image display mode is designated by the operation mode command supplied via the system bus 10a. , Each selected sync signal 5
sub-horizontal deflection signals 8aR, 8aG synchronized with a and 5b,
8aB and sub-vertical deflection signals 8bR, 8bG, 8bB
Corresponding to each projection type CRT 2, 3 and 4 is generated and output. In the image display mode and the adjustment mode, the sub-deflection unit 8 uses the sub-horizontal deflection signal 8a based on the registration data supplied via the system bus 10a.
R, 8aG, 8aB and sub-vertical deflection signals 8bR, 8
bG and 8bB are generated.

The sub-deflection unit 8 outputs a test / pattern display output from the test signal generation unit 9 when the adjustment mode and the pattern display mode are designated by the operation mode command supplied via the system bus 10a. The horizontal synchronizing signal 9b and the vertical synchronizing signal 9c are selected, and the sub-horizontal deflection signals 8aR, 8aG, 8aB and the sub-vertical deflection signal 8bR, which are synchronized with the selected test / pattern display synchronizing signals 9b and 9c, 8bG and 8bB are generated and output. In the pattern display mode, when the sub-deflection unit 7 is supplied via the system bus 10a with the data for changing and designating the registration data for pattern display, each sub-deflection signal 8aR, 8
It is configured to generate aG, 8aB, 8bR, 8bG, 8bB.

Red projection type CR output from the sub-deflection unit 8
The sub deflection signals 8aR and 8bR for T are red projection type CRTs.
It is supplied to the second sub-deflection coil 2d. Green projection CRT
Sub-deflection signals 8aG and 8bG for the green projection type CRT3
Is supplied to the sub deflection coil 3d. The sub-deflection signals 8aB and 8bB for the blue projection type CRT are supplied to the sub-deflection coil 4d of the green projection type CRT 4.

The test signal generator 9 includes a system bus 10
The video signal 9a, the horizontal synchronizing signal 9b, and the vertical synchronizing signal 9c of the test pattern designated by the test pattern designating command supplied via are generated and output. The test signal generator 9 can generate a video signal 9a of various figures such as a horizontal line, a vertical line, a lattice, a circle, an ellipse, and an arrow.
The test signal generator 9 includes a character generator, and is configured to generate a video signal 9a relating to a character information image based on a command from the system controller 10. Further, the test signal generator 9 is configured to generate a composite video signal 9a in which a test pattern and a character information image are combined.

The system control unit 10 is constructed by using a microcomputer system. Input operation unit 11
Includes a key for setting each mode, a key for adjusting an image in the adjustment mode, a key for creating a pattern to be displayed, and the like.

The projection data CR is stored in the adjustment data storage unit 12.
Common adjustment data adjusted commonly for T2, 3 and 4 (for example, adjustment data of horizontal position, horizontal amplitude, vertical position, vertical amplitude, etc.) and registration data adjusted for each CRT are stored. There is.

When the adjustment mode and the test pattern are specified by the input operation unit 11, the system control unit 10 informs the circuit units 6, 7, and 8 that the adjustment mode is set via the system bus 10a. At the same time, the test signal generator 9 is caused to generate a video signal 9a of a designated test pattern. The video signal processing unit 6 selects the video signal 9a of the test pattern and outputs the primary color signals R,
G and B are output, and the changing units 7 and 8 output the test signal generating unit 9
Since the deflection is performed based on the common adjustment data and the registration data stored in the adjustment data storage unit 12 in synchronization with the respective synchronization signals 9b and 9c output from, the test pattern is displayed on the screen. Here, if there is distortion or color shift on the display screen, or if there is a shift in the display position, specify the item to be adjusted on the input operation unit 11,
By performing an input operation to increase or decrease the adjustment data, it is possible to change the adjustment data of the corresponding adjustment item. Since the system control unit 10 supplies the changed adjustment data to the changing units 7 and 8, the adjustment can be performed while looking at the display screen. The system control unit 10 updates the adjustment data in the adjustment data storage unit 12 in association with the adjustment item.

When the pattern display data setting mode is designated by the input operation unit 11, the system control unit 10 supplies the prepared menu information to the test signal generation unit 9 via the system bus 10a, and the menu signal is generated. The video signal 9a of the screen is generated by the test signal generator 9 and displayed on the screen. The menu screen is provided with a menu for selecting and specifying a test pattern. When a specific test pattern is selected by the input operation unit 11, the system control unit 10 causes the signal generation unit 9 to generate the selected test pattern, and displays the menu information of the display color and its brightness and the adjustment items of the deflection condition. The menu information is supplied to the test signal generator 9 to generate a composite image of the selected test pattern, display color, its brightness, and a menu of adjustment items.

When the color designation, the luminance designation and the adjustment items are made by the input operation unit 11, the system control unit 10 supplies the designated color and luminance data to the video signal processing unit 6 and sets the adjustment data. Display the menu of. When the adjustment data is input by the input operation unit 11, the input data is supplied to the corresponding deflection unit.

For example, when the horizontal line test pattern is selected and the maximum brightness is designated in red, the red horizontal line is displayed at the maximum brightness on the screen. Next, when data setting is performed to shift the display position of the displayed horizontal line vertically or horizontally or to tilt it, the system control unit 10 sets the corresponding deflection units 7 and 8 according to the set adjustment item. Since the supplied data is supplied, the display position of the red horizontal line on the screen moves vertically or horizontally and tilts. When the input of the data setting OK is supplied from the input operation unit 11 at the desired display position, the system control unit 10 displays a menu for setting the display duration time under the set conditions on the screen. Then, when the display continuation time is set, the system control unit 10 displays a menu for selecting whether to end the pattern display data setting or to set the pattern to be displayed next. When the setting of the pattern to be displayed next is selected, the system control unit 10 selects the test pattern, specifies the color, the brightness, the item of the deflection condition and the setting of the adjustment data,
Repeat the operation of setting the display duration.

The system control unit 10 temporarily stores sequentially set data in the RAM or the like in the system control unit 10, and temporarily stores the data in the RAM or the like at the time when an input to finish the pattern display data setting is made. The stored series of data for pattern display is transferred to and stored in the pattern display data storage unit 13. The system control unit 10 may store the set data in the pattern display data storage unit 13 every time data is set for each menu item.

When the pattern display mode is designated by the input operation unit 11, the system control unit 10 supplies an operation mode command indicating that the pattern display mode is set to each of the circuit units 6, 7 and 8 and stores the pattern display data. The pattern display data stored in the unit 13 is read out, and the test patterns, colors, brightness, and deflection condition data specified by the read out pattern display data are displayed at the specified display duration intervals in the respective circuit units 6, 7, and 8. , 9 are supplied. As a result, the pattern created by the user or the like is displayed on the screen. When the pattern display program including a plurality of steps is completed, the system control unit 10 repeatedly executes the program. Then, when an input for ending the pattern display or an input for designating another operation mode is supplied from the input operation unit 11, the system control unit 10 stops the pattern display operation and is stored in the adjustment data storage unit 12. By supplying various adjustment data to the deflection units 7 and 8, control is performed so that the original image display is performed.

FIG. 2 is an explanatory diagram showing a display example of a grid pattern. In FIG. 2, the test patterns of vertical lines and horizontal lines are displayed, and the color and display position of each test pattern are moved. In FIG. 2, red is shown by a solid line, green is shown by a one-dot chain line, and blue is shown by a two-dot chain line.
First, the red vertical line R1 is displayed on the left side of the center of the screen, and at the same time, the red horizontal line R3 is displayed on the upper side of the center of the screen. Then, after a predetermined time has passed, the display position of the red vertical line R2 is moved to the left side of the center of the screen and to the right side of the display, and at the same time, the display position of the red vertical line R4 is moved below the center of the screen. Move to the side. Then, after a lapse of a predetermined time, the green vertical line G1 and the green horizontal line G3 are displayed at positions slightly deviated from the red lines R1 and R3, and after a lapse of a predetermined time, the display positions are changed to G2 and G4 shown in the figure. Then, blue vertical and horizontal lines B1 and B3 are displayed, and the position is changed to B2 and B4 shown in the drawing, which is repeated. The vertical line and the horizontal line may be sequentially switched and displayed, or the order of the displayed colors may be appropriately changed. Further, as the display color, a color other than the primary color can be designated.

FIG. 3 is a flow chart for displaying a grid pattern. Upon receiving the pattern display request, the system control unit 10 receives the pattern display data storage unit 13 in step S1.
The pattern display data stored in is read. Next, the system control unit 10 checks in step S2 that the input for ending the pattern display has not been made, and in step S2.
Deflection conditions for supplying data designating test patterns of vertical lines and horizontal lines to the test signal generating unit 9 and data designating display color and brightness to the video signal processing unit 6 and designating display positions. Data is supplied to each of the deflection units 7 and 8. As a result, the red vertical line R1 and the red horizontal line R3 shown in FIG. 2 are displayed.

The system controller 10 monitors the display time of the pattern previously designated in step S4, and when a preset time elapses, the deflection condition data for changing the display position in step S5 is supplied to each deflector. Supply to 7,8. As a result, the red vertical line R2 and the red horizontal line R shown in FIG.
4 is displayed.

In the display of the pattern shown in FIG. 2, only the sub-deflection condition is deflected to change the display position of the vertical line and the horizontal line. As the adjustment item, the item that specifies the display center position for each color is used, and the display center position setting data is shifted vertically or horizontally from the screen center position to change the display position. I have to.

When it is confirmed in step S6 that the predetermined display time has elapsed, the system controller 10 designates the next display color, brightness and display position in step S7. As a result, the green vertical line G1 and the green horizontal line G3 shown in FIG. 2 are displayed. When a predetermined time has passed (S
8), the system control unit 10 changes the designation of the display position (deflection condition) in step S9. As a result, the green vertical line G2 and the green horizontal line G4 shown in FIG. 2 are displayed. When a predetermined time has passed (S10), the system control unit 10
In step S11, the next display color, brightness and display position are designated. As a result, the blue vertical line B1 and the blue horizontal line B3 shown in FIG. 2 are displayed. When the predetermined time further passes (S12), the system control unit 10 changes the designation of the display position (change condition) in step S13.
As a result, the blue vertical line B2 and the blue horizontal line B4 shown in FIG. 2 are displayed. When a predetermined time has passed (S1
4), the system control unit 10 repeats the processing from step S2.

When the input to terminate the pattern display is detected in step S2, the system control unit 10 reads various adjustment data stored in the adjustment data storage unit 12 in step S15 to change each change unit. 7 and 8 and reset the changing conditions so that an image with no distortion and no color shift can be displayed. Although the flowchart shown in FIG. 2 shows the control flow in which the pattern display cannot be ended during the series of pattern display, the pattern display can be ended at an arbitrary timing during the pattern display by using interrupt processing or the like. May be.

FIG. 4 is an explanatory diagram showing a display example of a radial pattern. The radial pattern shown in FIG. 4 is displayed by sequentially changing the adjustment data of the item for adjusting the inclination with respect to the display of the horizontal line or the vertical line. After the red radial patterns R11 and R13 are first displayed, the display position is changed to R12 and R14, and then the green radial patterns G11 and G13 are displayed, and then the display position is changed to G12 and G14, Next, after the blue radial patterns B11 and B13 are displayed, the display position is B1.
2 and B14 are sequentially changed. The positions to be displayed and the order thereof, the order of the colors to be displayed, and the like can be appropriately changed by changing the setting of the pattern display program.

FIG. 5 is an explanatory view showing a display example of a pattern whose shape changes. By generating the two figures shown in FIG. 5A by the test signal generating unit 9 and sequentially changing the data for correcting the linear wavy shape in time, as shown in FIG. By displaying a pattern in which the figure undulates and further reducing the amplitude data in the horizontal direction, as shown in FIG. 5C, the display interval between the two figures in the horizontal direction is increased. Is gradually narrowed, and then the amplitude data in the vertical direction is set to be temporally decreased, whereby the vertical size of each figure is gradually reduced as shown in FIG. 5D. After the output of each of the R, G, and B primary color signals is stopped and the display state is changed to the non-display state, the initial screen is displayed again and the changes (a) to (d) are repeated. It is a thing. In addition, from the non-display state, as shown in FIGS.
Patterns that continuously change in the order of (b) and (a) may be displayed, or those changes may be repeated.

[0036]

As described above, in the projector device according to the present invention, various patterns are generated on the screen by appropriately changing the deflection conditions of the red, green and blue projection type CRTs. Since the configuration is adopted, various patterns can be displayed by using the deflection condition adjusting function provided in the projector device without supplying a video signal for pattern display from another device. Therefore, the pattern for interior decoration can be displayed on the screen only with this projector device. In addition, various patterns can be generated and enjoyed by appropriately deflecting the deflection conditions.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a projector device according to the present invention.

FIG. 2 is an explanatory diagram showing a display example of a grid pattern.

FIG. 3 is a flowchart for displaying a grid pattern.

FIG. 4 is an explanatory diagram showing a display example of a radial pattern.

FIG. 5 is an explanatory diagram showing a display example of a pattern whose shape changes.

[Explanation of symbols]

 1 Projector Device 2-4 Projection CRT 6 Video Signal Processing Unit 7 Main Deflection Unit 8 Sub Deflection Unit 9 Test Signal Generation Unit 10 System Control Unit 11 Input Operation Unit 12 Adjustment Data Storage Unit 13 Pattern Display Data Storage Unit

Claims (1)

[Claims] 1. An adjustment data storage unit for storing adjustment data for deflection conditions of each of the red, blue, and green projection type CRTs, and each of the projection type CRTs based on the adjustment data stored in the adjustment data storage unit. When the deflection unit for performing the deflection, the pattern display data storage unit for storing the deflection condition data for performing the pattern display, and the pattern display request input from the input operation unit are supplied,
The deflection unit is controlled to perform a deflection operation based on the deflection condition data for performing the pattern display stored in the pattern display data storage unit, and when the pattern display request input is not supplied, A projector apparatus, comprising: a system control unit that controls the deflection unit to perform a deflection operation based on the deflection condition adjustment data stored in the adjustment data storage unit.