KR19980017351A - Convergence Remote Controller for 3-Plate Projectors - Google Patents

Abstract

The present invention relates to an apparatus for remotely controlling convergence of a three-panel projector. The present invention relates to an adjustment mode and adjustment of convergence for an R / G / B color beam controlled by first and third optical modulation members 22, 28, and 32. The second and the second targets to be adjusted for the reference picture pattern by the first light modulation member 22 based on the remote controller 40 for setting the amount, the convergence adjustment mode and the adjustment amount set in the remote controller 40; A control unit 60 that controls the convergence adjustment by matching the color screen patterns by the third light modulation members 28 and 32, and the generation of the reference screen pattern and the color screen pattern to be adjusted under the control of the control unit 60. OSD signal processing unit 70 for generating a first and third reference screen patterns and the adjustment target screen pattern are applied to the first and third light modulation members 22, 28, and 32 so as to be displayed on the screen. Under the control of the optical modulation member driver 80, 90, 100, the control unit 60 The first and second convergence adjusting mechanisms 120 and 140 corresponding to the second and third light modulation members 28 and 32 to be adjusted are driven to match the reference pattern screen with the adjustment target screen pattern. The first and second convergence adjusting means (110, 130) for changing the position of the light modulation member (28, 32) to be adjusted so as to be configured.

Description

Convergence Remote Controller for 3-Plate Projectors

The present invention relates to a convergence remote control device for a three-panel projector, and more particularly, to control the position of the first to third light adjusting members (AMA panels) installed corresponding to the R / G / B color components of the color image. The present invention relates to a convergence remote control device for a three-panel projector for remotely controlling the display to optimally set the color screen convergence.

As is well known, an image display device is roughly classified into a direct view type image display device and a projection type image display device, wherein a direct view type image display device includes an R / G / B color beam emitted from an R / G / B electron gun. Represented by a CRT device configured to reach a R / G / B fluorescent point formed on the image to implement a color image, the projection image display device is based on the R / G / B color signal of the color image of the uniform arrangement state of the liquid crystal It is represented by an LCD (Liquid Crystal Display) panel which scatters and projects a color beam onto a screen to reproduce a color image.

However, according to the CRT apparatus, an absolute distance for deflection in the vertical and horizontal directions is required so that the color ratio emitted from the R / G / B electron gun is evenly distributed to the R / G / B fluorescent point on the fluorescent panel. While the overall dimensions and weight become large, screen enlargement is limited, and in the case of LCD panels, the color image is developed by light transmission control by liquid crystal, which makes it possible to lighten and reduce the size of the screen. The screen also becomes reproducible, but the application of polarizers results in light loss.

In view of such a situation, recently, an optical ratio emitted from a light source by an AMA panel in which an AMA (Actuated mirror array) device is integrated is controlled on an optical path based on an R / G / B color component of a color image signal. A projector as a projection type image display apparatus for reproducing this has been proposed.

Here, the AMA element provided in the AMA panel is integrated with a substrate and is connected to a pixel driver, which is composed of a transistor, for example, a transistor, and is electrically connected to the pixel driver. An actuator to be performed and a reflecting surface formed on an upper end of the actuator to adjust an optical path of a light beam in response to a pixel signal of a color image.

1 is a view showing an optical system applicable to a three-panel projector in which an AMA panel is installed corresponding to an R / G / B signal of a color image.

In the figure, reference numeral 10 denotes a light source that emits a high brightness white light beam, 12 denotes a condenser lens that condenses the light beam emitted by the light source 10, and 14 denotes a light ratio condensed by the condenser lens 12. A source stop member for shaping into a predetermined form.

16 is a reflecting mirror for reflecting the light beams shaped by the source stop member 14 to the optical modulation path, and 18 is a reflection of only the R (red) color component in the light beams reflected from the reflecting mirror 16. 20 is a first field lens for condensing a beam of R color components reflected by the R-dichroic filter 18, and 22 is a condensed light at the first field lens 20. A first optical modulating member comprising an AMA panel equipped with a plurality of AMA elements for adjusting an optical path based on an R color component of a color image signal.

In Fig. 1, reference numeral 24 denotes a G-dichroic filter reflecting only G (Green) color component in the light beam passing through the R-dichroic filter 18, and 26 denotes the G-dichroic filter. A second field lens for condensing the beam of the G color component reflected by the filter 24, and 28 is a beam of the G color component condensed on the second field lens 24 based on the G color component of the color image signal; It is a second light modulating member consisting of an AMA panel equipped with a plurality of AMA elements to control the optical path.

Reference numeral 30 denotes a third field lens for condensing a beam of B (blue) color component in the light beam passing through the G-dichroic filter 24, and 32 denotes a third field lens 30 in the third field lens 30. A third light modulating member made of an AMA panel having a plurality of AMA elements for adjusting an optical path based on a B color component of a color image signal, wherein the beam of the focused B color component is used.

According to the optical system having the above-described configuration, the white light beam emitted from the light source 10 is collected by the condenser lens 12 and passed through the source stop member 14 to be shaped into a predetermined shape (for example, a spherical shape or a rectangular shape). The shaped light beam is then reflected back in the reflection mirror 16 to reach the R-dichroic filter 18.

Therefore, the beam of the R color component in the light beam is reflected by the R-dichroic filter 18 and is incident on the first light modulation member 22 by the AMA panel through the first field lens 20, The beam of the R color component incident on the first light modulation member 22 is reflected in an optical path controlled state by an AMA element tilted corresponding to the R color component of the color image signal, and the reflected light is reflected in the first field lens. Through 20, the R-dichroic filter 18 is reflected toward the projection lens 36 side.

In addition, the G-color component of the light beam reflected by the reflection mirror 16 and passing through the R-dichroic filter 18 is reflected by the G-dichroic filter 24 and the second field lens 26. The second light modulation member 28 is incident on the AMA panel through the second light modulation member 28, and the second light modulation member 28 corresponds to the G color component of the color image signal with respect to the beam of the incident G color component. By tilting, the optical path of the G color component is adjusted, and then the beam of the optical path controlled G color component is transmitted from the G-dichroic filter 24 to the projection lens 36 through the second field lens 26. Reflected to the side.

In addition, the B color component passing through the R-dichroic filter 18 and the G-dichroic filter 24 in the reflective mirror 16 is transferred by the AMA panel through the third field lens 30. The light is incident on the optical modulation member 32 and adjusted to the optical path corresponding to the B color component of the color image signal, and then reflected to the projection lens 36 through the third field lens 30.

Accordingly, the beam of the R / G / B color component reflected through the R-dichroic filter 18, the G-dichroic filter 24, and the third field lens 30 is reflected in the reflection mirror 16. And the projection stop member 34 enter the projection lens 36, and as the projection lens 36 is projected onto the screen 38, a color image is projected onto the screen 38.

Here, the first to third light modulation members 22, 28, and 32 are typically fixed to the case of the projector by a fixed panel member (not shown), and in this state, for example, the first to third light. When the R / G / B color beams, which are optically modulated by the modulating members 22, 28, and 32, are displaced from each other, the convergence of the color image projected on the screen is not matched, and thus the image quality of the overall color image is reduced. It will deteriorate.

Therefore, when the positions of the R / G / B color beams optically modulated by the first to third light modulating members 22, 28, and 32 are not matched, the case of the projector is disassembled and the first to third parts are removed. Although the position of the AMA panels constituting the light modulating members 22, 28, and 32 must be adjusted so that the R / G / B color beams coincide with each other, such first and third light modulating members 22, 28, 32) It is not easy to adjust the position of AMA panel.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and the optical modulation member to be adjusted is mainly focused on the color beam of the standard optical modulation member by applying an electric positioning mechanism to the three-plate type optical modulation member employed in the projector. It is an object of the present invention to provide a convergence remote control device of a three-panel projector for remotely adjusting the position of the color image so that the convergence of the color image on the screen is automatically adjusted.

In order to achieve the above object, according to a preferred embodiment of the present invention, in a three-plate type projector having first to third optical modulation members installed corresponding to the R / G / B color components of a color image signal, the first A remote control for setting the adjustment mode and the adjustment amount of the convergence for the color beams controlled by the third light modulation member, and the first light modulation member based on the convergence adjustment mode and the adjustment amount set at the remote control; Control means for controlling the convergence adjustment of the R / G / B color components by adjusting the positions of the second and third light modulation members based on the position, and the first to third light modulation members under the control of the control means. OSD signal processing means for generating the reference screen pattern displayed on the screen and the color screen pattern of the adjustment target, and the reference screen pattern and the adjustment target screen pattern to the first to third optical modulation members. First to third light modulation member driving means for displaying on the screen, and first and second convergence adjustments corresponding to the second and third light modulation members to be adjusted under the control of the control means. Convergence of a three-panel projector configured with first and second convergence adjusting means for driving a mechanism to change positions of the second and third light modulation members of the adjustment target such that the reference pattern screen matches the adjustment target screen pattern Remote control is provided.

Preferably, according to the present invention, the first and second convergence adjusting mechanisms each have a set of guide protrusions formed at the rear end of the optical modulation member of the corresponding adjustment target, and a vertical gear train is formed at one side thereof. A fixed support panel member, a positioning support panel to which a set of guide protrusions formed on the fixed panel member is movably coupled, and a position change in a vertical direction with respect to the optical modulation member to be adjusted by being engaged with the vertical gear train at the shaft end; In addition to having a first electric motor for executing a guide protrusion coupled to the guide member formed on the bottom of the projector is formed at the lower end of the positioning support panel, and a horizontal gear train is formed on the lower front surface thereof. The second gear is meshed with the horizontal gear train of the positioning support panel It consists equipped with a second electric motor to run the displacement in the horizontal direction for the light modulation element of the group control object.

Preferably, the reference screen pattern is set to a '+' shape by an R color, and the adjustment target screen pattern is set to a '+' shape by a G color and a B color.

According to the convergence remote control device for a three-panel projector according to the present invention having the above-described configuration, the reference pattern is controlled by remotely controlling the positions of the second and third light modulation members with respect to the reference screen pattern by the first light modulation member. The convergence can be adjusted by matching the color screen pattern of the adjustment target projected from the light modulation member of the adjustment target with respect to the screen.

1 is a view showing a configuration example of an optical system applied to a three-panel projector,

2 is a block diagram of a convergence remote control apparatus for a three-panel projector according to the present invention;

3 is a view showing a representative configuration of the first and second convergence adjustment mechanism shown in FIG.

4 is a view showing a screen pattern illustrating the operation of the convergence remote control device of a three-panel projector according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: light source, 22, 28, 32: first-third light modulation member (AMA panel),

36: projection lens, 38: screen,

40: remote control, 46: four-way button,

50: remote control signal receiving unit, 60: control unit,

70: OSD signal processing unit, 80, 90, 100: first to third optical modulation member driver,

110, 130: the first and second convergence adjustment unit,

120.140: first and second convergence adjustment mechanisms,

152: vertical gear row, 154: positioning support panel,

158: first electric motor, 168: horizontal gear train,

172: second electric motor.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of a convergence remote control apparatus for a three-panel projector according to the present invention. Reference numeral 40 denotes a remote control for the three-panel projector and a remote control for the convergence of the projector. As the remote control, the remote control 40 has a G color for instructing the adjustment of the G (Green) color as the color to be adjusted when the R (Red) color is set as the reference color for adjusting the convergence of the color image in the present invention. In addition to the adjustment button 42 and the B color adjustment button 44 for instructing adjustment of the B (Blue) color as the color to be adjusted, a four-way button 46 for instructing the convergence adjustment direction is provided. You lose.

Reference numeral 50 denotes a remote control signal receiver that is installed at a predetermined position of a corresponding projector and receives a remote control signal transmitted from the remote controller 40.

In addition, in FIG. 2, reference numeral 60 denotes R color while controlling the overall function of the corresponding projector in response to the remote control signal received from the remote controller 40 received through the remote control signal receiver 50. The control part which controls the convergence adjustment mode of G color and B color is shown.

Reference numeral 70 forms a screen pattern (reference '+' shaped pattern in the present invention) in the adjustment mode of convergence executed under the control of the control unit 60, and the G of the remote controller 40. Whenever the color button 42 and the B color button 44 are operated, the '+' shape pattern by the G color of the shape corresponding to the reference screen pattern and the '+' shape pattern by the B color are displayed in OSD (On-). OSD display is generated by the screen display signal.

Reference numerals 80, 90, and 100 denote R / G / Bs generated by the OSD signal processing unit 70 by driving the first to third optical modulation members 22, 28, and 32 described in FIG. A first to third light modulation member driver for displaying a color pattern on an optical path is displayed.

Reference numeral 110 is set through the first convergence adjustment mechanism 120 according to the convergence adjustment control signal of the G color applied from the control unit 60 in response to the operation of the G color adjustment button 42 of the remote controller 40. A first convergence adjusting section for performing position adjustment for the two light modulating members (28 in Fig. 1) is shown.

Also, reference numeral 130 designates the second convergence adjustment mechanism 140 in accordance with the convergence adjustment control signal of the B color applied from the controller 60 in response to the operation of the B color adjustment button 44 of the remote controller 40. A second convergence adjustment section for performing position adjustment for the third light modulation member 32 in FIG. 1 is shown.

FIG. 3 is a view schematically showing a first convergence adjusting mechanism 120 among the first and second convergence adjusting mechanisms 120 and 140. According to the convergence adjusting mechanism 120, the second optical modulation member 28 A set of guide protrusions 150 is formed at the rear of the fixed panel member 28 'that is fixedly coupled thereto, and a vertical screw row that contributes to the horizontal convergence adjustment of the color image at one end surface of the fixed panel member 28'. 152 is formed. For the fixed panel member 28 ', a positioning support panel 154 is provided in the case of the corresponding projector, and the front side of the positioning support panel 154 is located behind the fixing panel member 28'. A set of guide members 156 is formed at a position corresponding to the formed set of guide protrusions 150.

Further, a first electric motor 158 for adjusting convergence in the vertical direction of the color image is provided at the periphery of the positioning support panel 154, and the fixed panel member 28 is disposed at the shaft end of the first electric motor 158. ') Is engaged with the vertical gear train 152 formed on one end surface of the fixed panel member 28' in a state where the guide protrusion 150 of the ') and the guide member 156 of the positioning support panel 154 are coupled to each other. The first gear 160 is provided.

In addition, a guide protrusion 162 is formed on the bottom surface of the positioning support panel 154, and the guide protrusion 162 is horizontal to the guide member 166 formed on the case bottom 164 of the corresponding projector. The horizontal gear row 168 is formed so as to be movable in the direction, and the lower front surface of the positioning support panel 154 contributes to the horizontal convergence adjustment of the color image.

In addition, a front side of the positioning support panel 154 on which the horizontal gear train 168 is formed is provided with a second electric motor for overall horizontal movement of the positioning support panel 154 when the horizontal convergence adjustment of the color image is performed. 170 is installed, and the second gear 172 meshed with the horizontal gear train 168 is engaged with the shaft end of the second electric motor 170.

Preferably, according to the present invention, the configuration of the first convergence adjustment mechanism 120 is similarly applied to the second convergence adjustment mechanism 140 so that the first convergence adjustment mechanism 120 adjusts the convergence of the G color. When acting for the second convergence adjustment mechanism 140 serves to adjust the convergence of the B color.

Subsequently, the operation of the convergence remote control device of the three-plate type liquid crystal projector according to the present invention having the above-described configuration will be described in detail based on the R color and the G color and B color convergence adjustment targets.

First, the fixing panel (not shown) of the first light modulation member 22 shown in FIG. 1 is rearward of the fixing panel member 28 'to which the second light modulation member 28 is fixedly coupled in a state where it is fixedly installed. A pair of guide protrusions 150 formed on the vertical guide gear row 152 formed on one side surface of the fixed panel member 28 'as well as coupling to a set of guide members 156 formed on the positioning support panel 154. ) And the first electric motor 158 to be engaged with each other.

In addition, the positioning support panel 154 is coupled to the guide protrusion 162 formed at its lower end so as to be movable to the guide member 166 formed on the case bottom 164 of the projector corresponding to the positioning support panel ( The second electric motor 170 is fixed to the horizontal gear train 168 and the second gear 172 formed on the lower front surface of the lower portion 154, and the third light modulation member 32 is disposed in such a configuration. The same applies to the same.

In this state, when the convergence adjustment mode is set from the remote controller 40, a remote control signal indicating the convergence adjustment mode is applied to the control unit 60 through the remote control signal receiving unit 50, and accordingly the control unit 60 ) Is set by the OSD signal processor 70 to generate a '+' shaped reference screen pattern by the R color set as the reference color and apply it to the first optical modulation member driver 80 by setting the convergence adjustment mode. Done. Accordingly, the first light modulation member driver 80 applies the reference color pattern of the R color to the first light modulation member 22 described with reference to FIG. 1 so that the first light modulation member 22 of the light source 10 The optical beam is adjusted to the optical path, and the optical path controlled R color beam is projected onto the screen 38 through the projection lens 36, so that the reference screen pattern R by the R color is formed on the screen 38. Will be displayed.

In this state, when the remote control signal by the operation of the G color adjustment button 42 of the remote control 40 is applied to the control unit 60 through the remote control signal receiving unit 50, the control unit 60 is the The OSD signal processing unit 70 generates an OSD signal relating to the adjustment target pattern of the G color, and controls the OSD signal to be applied to the second light modulation member 28 through the second light modulation member 90.

Therefore, the second light modulation member driver 90 applies the G-color adjustment target screen pattern to the second light modulation member 28 shown in FIG. 1 so that the light beam of the light source 10 is adjusted to the light path. The optical path adjusted G color beam is projected onto the screen 38 through the projection lens 36, so that the adjustment target screen pattern G by the R color is displayed on the screen 38.

Here, when the position of the adjustment target screen pattern G is not matched with the reference screen pattern R, the convergence of the color image is not appropriate. Accordingly, the adjustment target screen pattern is controlled by the remote controller 40. When the operation of the four-way button 46 is performed to move the position in the horizontal and / or vertical direction, a remote control signal corresponding to the horizontal and / or vertical operation of the four-way button 46 is transmitted to the remote controller. 40 is applied to the controller 60 through the remote control signal receiver 50.

Accordingly, the controller 60 controls the first and / or second convergence adjusting units 110 and 130 in response to the horizontal and / or vertical manipulation amounts of the four-way button 46 provided in the remote controller 40. When the convergence adjustment data is applied, for example, when the four-way button 46 of the remote controller 40 is operated in connection with the vertical position movement, the controller 60 sends the first convergence adjustment unit 110 to the first convergence adjustment unit 110. Convergence adjustment data corresponding to the vertical manipulation amount of the four-way button 46 is applied.

Accordingly, the first convergence adjustment unit 110 analogizes the convergence adjustment data to the first electric motor 158, and when the first electric motor 158 rotates forward / reverse, the first The first gear 160 installed at the shaft end of the electric motor 158 drives the vertical gear train 152 formed at one end surface of the fixed panel member 28 'up / down, and the fixed panel member 28' The guide protrusion 150 formed at its rear end is moved up / down under the guide of the guide member 156 formed on the positioning support panel 154.

G color adjustment target screen pattern projected on the screen 38 through the projection lens 36 by adjusting the optical path by the second optical modulation member 28 by moving the position of the fixed panel 28 'in the vertical direction. The position is changed in the vertical direction.

Subsequently, when the horizontal position adjustment is operated by the four-way button 46 of the remote controller 40 and applied to the control unit 60 through the remote control signal receiving unit 50, the control unit 60 controls the four directions. The convergence adjustment data corresponding to the horizontal manipulation amount of the button 46 is applied to the first convergence adjustment unit 110. Accordingly, the first convergence adjustment unit 110 performs analog processing on the convergence adjustment data so as to perform the first adjustment. It is applied to the second electric motor 170 of the convergence adjustment mechanism 120. Therefore, the second electric motor 170 is rotated so that the second gear 172 installed at the shaft end transmits the rotational force to the horizontal gear train 168 formed on the positioning support panel 154, Accordingly, the guide protrusion 162 formed at the lower end of the positioning support panel 154 is guided by the guide member 166 to move in the horizontal direction, and thus the position adjustment to which the fixed panel 28 'is coupled. The entire support panel 154 is moved in the horizontal direction.

Accordingly, the G color beam is adjusted in the horizontal direction in the second light modulation member 28 to be projected on the screen 38 through the projection lens 36, and thus the screen 38 is adjusted. The adjustment target screen pattern of the G color projected on the position is matched with the reference screen pattern of the R color to adjust the convergence of the G color.

When the B color adjustment is set by the adjustment of the B color adjustment button 44 of the remote controller 40, the control unit 60 performs the B color through the OSD signal processing unit 70 in the same way as the adjustment of the G color. After the adjustment target screen pattern is applied to the third light modulation member driver 100, the third light modulation member 32 is projected on the screen 38 by the third light modulation member 32. The adjustment target pattern of the projected B color When the position of the R color reference screen pattern R is not matched with the second color adjustment unit, the convergence adjustment data corresponding to the horizontal and / or vertical manipulation amount of the four-way button 46 of the remote controller 40 is displayed. And a second convergence adjustment mechanism 140 in which the second convergence adjustment unit 130 adopts the same configuration as the first convergence adjustment mechanism 120 by analog processing the convergence adjustment data. ) Is applied.

Therefore, the second convergence adjustment mechanism 140 allows the B-color adjustment target screen pattern to be the same as the adjustment of the G-color adjustment target screen pattern on the screen 38 on the R color reference screen pattern R. ) Will be executed.

On the other hand, the above description has been made on the assumption that the R color is set as the color of the reference screen pattern. However, the G and B colors may be set as the reference screen pattern, and the first and second convergence adjusting mechanisms may be used. Of course, if the positional movement of the AMA panel in the horizontal and vertical directions is possible with respect to 120 and 140, any configuration may be applied.

In addition, although the present invention has been described with respect to a state in which the present invention is applied to a projector having a three-panel AMA panel, the present invention can be equally applied to a projector equipped with a three-panel LCD panel, as well as a projection television. This can also be applied to rear projection (Rear projection TV).

As described above, according to the convergence remote control apparatus of the three-panel projector according to the present invention, after displaying the reference screen pattern by the reference color on the screen, the adjustment target screen pattern by the color to be adjusted is the reference screen pattern. It is possible to control such that the adjustment target screen pattern is changed in the horizontal and / or vertical direction by the remote controller so as to be aligned with respect to, so that the adjustment of the convergence of the color image can be performed quite simply and easily.

Claims (4)

In a three-plate type projector having first to third light modulation members (22, 28, 32) installed corresponding to the R / G / B color components of a color image signal, A remote controller 40 for setting an adjustment mode and an adjustment amount of convergence for the color beams controlled by the first to third light modulation members 22, 28, and 32, The positions of the second and third light modulation members 28 and 32 are adjusted based on the position of the first light modulation member 22 based on the convergence adjustment mode and the adjustment amount set by the remote controller 40. Control means 60 for controlling the convergence adjustment of the R / G / B color component; Under the control of the control means 60, the OSD signal processing means 70 for generating the reference screen pattern displayed by the first to third light modulation members 22, 28 and 32 and the color screen pattern to be adjusted. , A first to third light modulation member driving means (80) for applying the reference screen pattern and the adjustment target screen pattern to the first to third light modulation members (22, 28, 32) to be displayed on the screen (38). , 90,100), Under the control of the control means 60, corresponding to the second and third light modulation members 28 and 32, which are the adjustment targets, are installed to adjust the vertical and horizontal positioning units of the second and second light modulation members. A first and second convergence adjusting mechanism (120,140) that drive the first and second convergence adjusting mechanisms (120,140) to change the positions of the second and third light modulation members (120,140) of the adjustment target such that the reference pattern screen and the adjustment target screen pattern match each other. And a second convergence adjusting means (110,130). The vertical position adjusting unit of the first and second convergence adjusting mechanisms 12 and 140 has a set of guide protrusions at a rear end thereof, respectively, while the corresponding optical modulation members 28 and 32 are fixedly installed. 150 is formed and a fixed panel member 28 'having a vertical gear row 152 formed on one side thereof and a set of guide protrusions 150 formed on the fixed panel member 28' are movably coupled thereto. Positioning support panel 154 having a guide member 156, and a first gear 160 to be engaged with the vertical gear train 152 at the shaft end is installed in the vertical direction with respect to the optical modulation member of the adjustment target A convergence remote control device for a three-panel projector, comprising: a first electric motor 158 for executing a change. The horizontal positioning unit of the first and second convergence adjustment mechanisms 120 and 140 is formed at the lower end of the positioning support panel 154 to guide members formed on the bottom surface 164 of the projector. Guide protrusions 162 coupled to each other, a horizontal gear train 168 formed on the lower front surface of the positioning support panel 154, and a second gear engaged with the horizontal gear train 168 of the positioning support panel 1540 at the shaft end. A gear 172 is provided, the second electric motor 170, the remote control device of the three-panel type projector, characterized in that configured to be equipped with a second electric motor 170 for changing the position in the horizontal direction with respect to the optical modulation member of the adjustment target. The screen pattern according to any one of claims 1 to 3, wherein the reference screen pattern is set to a '+' shape by an R color, and the adjustment screen pattern is set to a '+' shape by a G color and a B color. Convergence remote control device of a three-panel projector.