JP2013003551A - Projector - Google Patents

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Publication number
JP2013003551A
JP2013003551A JP2011137999A JP2011137999A JP2013003551A JP 2013003551 A JP2013003551 A JP 2013003551A JP 2011137999 A JP2011137999 A JP 2011137999A JP 2011137999 A JP2011137999 A JP 2011137999A JP 2013003551 A JP2013003551 A JP 2013003551A
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Japan
Prior art keywords
housing
connection
projector
light
light source
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Granted
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JP2011137999A
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Japanese (ja)
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JP5754260B2 (en
Inventor
Norikazu Kadotani
典和 門谷
Kaname Hase
要 長谷
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Seiko Epson Corp
セイコーエプソン株式会社
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Priority to JP2011137999A priority Critical patent/JP5754260B2/en
Priority claimed from RU2014101722/28A external-priority patent/RU2014101722A/en
Publication of JP2013003551A publication Critical patent/JP2013003551A/en
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Publication of JP5754260B2 publication Critical patent/JP5754260B2/en
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Abstract

PROBLEM TO BE SOLVED: To provide a projector that can be downsized.SOLUTION: A projector 1 comprises: a light source device 2; a light modulator 5 for modulating a light flux emitted from the light source device 2; a projection optical device 7 for projecting the light flux modulated at the light modulator 5; a flexible substrate 6 having one end connected to the light modulator 5; and a housing 8 for accommodating the light source device 2, the modulator 5, and the projection optical device 7. At a position in the housing 8 where the modulator 5 is arranged, there are formed a first insertion part 8 L1 for routing the flexible substrate 6 to the exterior of the housing 8, and a second insertion part 8D1 to which part of the light modulator 5 is inserted.

Description

  The present invention relates to a projector.

Conventionally, a projector including a light source device, a light modulation device that modulates a light beam emitted from the light source device, and a projection optical device that projects a light beam modulated by the light modulation device is known (for example, a patent). Reference 1).
In the projector described in Patent Document 1, an LED (Light Emitting Diode) light source is employed as a light source device instead of a discharge light-emitting light source lamp in order to reduce the size of the projector.
This LED light source has a configuration in which a light emitting element (light emitting unit) is mounted on an LED substrate.
The light modulation device (liquid crystal device) is electrically connected to the control substrate that controls the operation of the light modulation device and the LED light source via a flexible substrate, and a signal is transmitted from the control substrate via the flexible substrate. Controlled by output.
Similarly, the LED light source is controlled by connecting a connector provided on the LED board and the control board via a flexible board, and outputting a signal from the control board via the flexible board.

JP 2007-333773 A

By the way, optical components such as a light source device, a light modulation device, and a projection optical device are usually housed in a container-like housing.
And as such a housing | casing, it is common to form a notch in the side wall of the said housing | casing in order to route the flexible substrate connected to the optical modulation apparatus to the exterior of the said housing | casing.
Further, the side wall of the housing has a height dimension substantially the same as the width dimension of the flexible board (substantially the same as the height dimension of the light modulation apparatus) in order to cover the connection portion between the light modulation apparatus and the flexible board. It is necessary to have.
Here, as an optical component (light source device, light modulation device, projection optical device, and the like) housed in the housing, the size of the light modulation device is limited by the number of pixels, the pixel pitch, and the like. On the other hand, since the other optical component is a lens or the like, it can be made smaller than the size of the light modulation device (the cross-sectional shape perpendicular to the optical axis can be reduced).

From the above, the dimension obtained by adding the height dimension of the light modulation device or the height dimension of the side wall of the housing to the thickness dimension of the bottom portion of the housing is the approximate thickness dimension of the projector, and the height of the light modulation device There is a problem that it is difficult to reduce the thickness of the projector to approximately the same size as the size.
In particular, the projector is configured as a pico projector (also referred to as a micro projector or a nano projector) that is used in combination with an electronic device such as a digital camera, a mobile phone, or a notebook computer (personal computer) (for example, incorporated in the electronic device). In this case, it is difficult to design to a desired thickness dimension.

  An object of the present invention is to provide a projector that can be thinned.

  The projector of the present invention is a projector including a light source device, a light modulation device that modulates a light beam emitted from the light source device, and a projection optical device that projects the light beam modulated by the light modulation device. A flexible substrate having one end connected to the light modulation device, and a housing for housing the light source device, the light modulation device, and the projection optical device, wherein the light modulation device in the housing is disposed. The first insertion portion for routing the flexible substrate to the outside of the housing and the second insertion portion through which a part of the light modulation device is inserted are formed at the position where the flexible substrate is routed. To do.

In the present invention, the first and second insertion portions described above are formed at positions where the light modulation device is disposed in the housing.
Accordingly, for example, the second insertion portion described above is formed in the bottom portion of the container-shaped housing, and a part of the light modulation device is inserted into the second insertion portion, so that the light modulation device The optical component can be positioned at a position offset toward the bottom portion side of the housing.
Further, by forming the first insertion portion described above on the side wall of the housing, the flexible substrate can be routed from the side of the housing to the outside of the housing via the first insertion portion.
Further, as the height dimension of the side wall of the housing, the light modulation device is positioned at an offset position as described above. Therefore, even if the light modulation device and the flexible substrate are made smaller than the conventional configuration, The connection part can be covered sufficiently.
From the above, since the thickness dimension of the bottom part of the housing and the height dimension of the side wall are not added to the thickness dimension of the projector, the thickness dimension of the projector is approximately the same as the height dimension of the light modulation device. The projector can be made thinner.

  In the projector according to the aspect of the invention, the casing may be configured separately from each other, and may include a first casing section and a second casing section that are combined with each other, and the light modulation device may include the first casing section and the first casing section. Preferably, the first insertion part and the second insertion part are formed by combining the first casing part and the second casing part. .

In the present invention, the first and second insertion portions are formed by combining the first and second housing portions described above.
Accordingly, for example, the first and second insertion portions can be easily formed as compared with the case where the casing is configured by one member.
In addition, if an illumination system such as a light source device is housed in the first housing portion and a projection optical device is housed in the second housing portion, the illumination system such as the light source device is accommodated in a state where the light source device is housed in the housing. Adjustment of the positional relationship between the projection optical device and the projection optical apparatus (optical axis adjustment) can be easily performed.

In the projector according to the aspect of the invention, it is preferable that the projector includes a connection member that integrates the first casing portion and the second casing portion.
In the present invention, since the projector includes the above-described connection member, the first and second housings are connected by the connection member even when the housing is configured by the first and second housing parts that are separate from each other. A body part can be integrated and the intensity | strength of a housing | casing can be raised.

  In the projector according to the aspect of the invention, the housing has a substantially rectangular parallelepiped shape by combining the first housing portion and the second housing portion, and the connection member extends over the connection position. A connection member main body attached to the first side surface of the body, and a reinforcement projecting from the connection member main body and disposed opposite to the second side surface of the housing different from the first side surface so as to straddle the connection position It is preferable to provide a part.

  In the present invention, since the connection member includes the connection member main body and the reinforcing portion described above, the connection member main body and the reinforcement are provided from the two different surfaces (first and second side surfaces) of the housing so as to straddle the connection position with low strength. By reinforcing at the part, the strength of the housing can be effectively increased.

In the projector according to the aspect of the invention, it is preferable that the first insertion portion is formed on the second side surface.
In the present invention, the first insertion portion is formed on the second side surface. In other words, when the flexible substrate is routed outside the housing through the first insertion portion, the flexible substrate is routed to the side where the reinforcing portion is disposed.
Accordingly, it is possible to prevent the first insertion portion from being closed while reinforcing the housing with the reinforcement portion, and to prevent a problem from occurring in the connection portion between the light modulation device and the flexible substrate.

  In the projector according to the aspect of the invention, the housing has a substantially rectangular parallelepiped shape by combining the first housing portion and the second housing portion, and the connection member extends over the connection position. A connection member main body attached to a first side surface of the body, the first side surface is formed with a first opening for inserting the light modulation device into the housing; A part of the light modulation device that protrudes from the first opening is inserted into the connection member main body through the second opening. Is preferably formed.

In the present invention, for example, the housing is configured such that a part of the light modulation device protrudes from a container-like opening (first opening). And the connection member main body mentioned above which comprises a connection member is attached to a housing | casing so that the said opening part of a housing | casing may be obstruct | occluded. At this time, since the second opening portion described above is formed in the connection member main body, when the connection member main body is attached to the housing, a part of the light modulation device is inserted into the second opening portion. The member body does not mechanically interfere with the light modulation device.
Therefore, in addition to the function of increasing the strength of the housing, the connecting member can have a function as a lid that closes the opening of the housing. Further, since the second opening is formed in the connection member body, the thickness dimension of the connection member body is not added to the thickness dimension of the projector, and the thickness dimension of the projector is substantially the same as the height dimension of the light modulation device. Can be set to about the size.

In the projector according to the aspect of the invention, it is preferable that the connection member includes a light source connection portion that is made of a heat conductive material and is connected to the light source device so as to be able to transfer heat.
In the present invention, since the connection member includes the light source connection portion described above, the heat generated by the lighting drive of the light source device can be radiated to the outside along the heat transfer path of the light source device to the connection member (light source connection portion). For this reason, the thermal deterioration of the light source device can be effectively suppressed.

FIG. 3 is a diagram illustrating a configuration of a projector according to the present embodiment. FIG. 3 is a diagram illustrating a configuration of a projector according to the present embodiment. FIG. 3 is a diagram illustrating a configuration of a projector according to the present embodiment. FIG. 3 is a diagram illustrating a configuration of a projector according to the present embodiment. The figure for demonstrating the positioning structure of LED in this embodiment.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[Configuration of projector]
1 to 4 are diagrams showing a configuration of the projector 1 according to the present embodiment. Specifically, FIG. 1 is a perspective view of the projector 1 viewed from the top side (upper side), and FIG. 2 is a perspective view of the projector 1 viewed from the bottom side (lower side). 3 and 4 are exploded perspective views of the projector 1 as viewed from above.
The projector 1 projects an image and displays a projected image on a screen (not shown).
The projector 1 according to the present embodiment is configured as a small optical module (pico projector) mounted on an electronic device (not shown) such as a digital camera, a mobile phone, or a notebook PC (Personal Computer).

As shown in FIGS. 1 to 4, the projector 1 includes a light source device 2, first and second lenses 3A and 3B (FIGS. 3 and 4), and a polarization conversion element 4 (FIGS. 3 and 4). And a liquid crystal panel 5 as a light modulation device, a flexible substrate (hereinafter referred to as FPC) 6, a projection lens 7 as a projection optical device, a housing 8, and a connecting member 9.
With the configuration described above, the light beam emitted from the light source device 2 is substantially parallelized by the first and second lenses 3A and 3B, and then converted into substantially one type of linearly polarized light by the polarization conversion element 4. The The light beam (linearly polarized light) that has passed through the polarization conversion element 4 is modulated by the liquid crystal panel 5 and then projected onto a screen (not shown) by the projection lens 7.

[Configuration of light source device]
The light source device 2 is controlled to be turned on under the control of a control board (not shown) provided inside the electronic device.
As shown in FIG. 3 or 4, the light source device 2 includes a printed wiring board 21 and an LED 22 as a light emitting element.
In the present embodiment, the printed wiring board 21 is composed of a metal core PCB (Printed Circuit Board) processed based on a metal such as aluminum or copper.
As shown in FIG. 3 or FIG. 4, the printed wiring board 21 is formed in a rectangular plate shape, and has a height dimension (up and down in FIG. 3 and FIG. The length dimension in the direction) is the same, and the lateral dimension (the length dimension in the left-right direction in FIGS. 3 and 4) is increased.

Although not shown in FIGS. 3 and 4, the printed wiring board 21 has a connector to which a flexible board (a flexible board for electrically connecting the control board and the printed wiring board 21) is connected. Is provided.
The printed wiring board 21 is provided with a positioning structure for positioning the LED 22 (hereinafter referred to as a positioning structure of the LED 22) at an emission position for emitting a light beam to the liquid crystal panel 5. Will be described later.

The LED 22 is mounted on the printed wiring board 21.
The light source device 2 is supplied with lighting power from the control board via a flexible board (not shown) connected to a connector (not shown), and receives a signal from the control board. The lighting is controlled.

[Configuration of LCD panel]
The liquid crystal panel 5 modulates the incident light beam under the control of the control board.
In the present embodiment, as shown in FIG. 3 or 4, the liquid crystal panel 5 is configured by a transmissive liquid crystal panel including a panel body 51, an incident side polarizing plate 52, and an output side polarizing plate 53. .
As shown in FIG. 3 or FIG. 4, the panel main body 51 has a configuration in which liquid crystal, which is an electro-optical material, is hermetically sealed between a pair of rectangular substrates 511 and 512 made of glass or the like.
Among these, the substrate 511 is a driving substrate for driving the liquid crystal, and includes a plurality of data lines arranged in parallel to each other, a plurality of scanning lines arranged in a direction orthogonal to the plurality of data lines, The pixel electrodes are arranged in a matrix corresponding to the intersections of the scanning lines and the data lines, switching elements such as TFTs (Thin Film Transistors), and drive circuits for driving the switching elements.

The substrate 512 is a counter substrate disposed on the light incident side of the substrate 511 so as to face the substrate 511 at a predetermined interval, and has a common electrode to which a predetermined voltage Vcom is applied.
Then, by inputting a signal from the control substrate via the FPC 6 (signal line for driving the liquid crystal panel 5), a voltage is applied between the predetermined pixel electrode and the common electrode, and the pixel electrode and the common electrode are shared. The alignment state of the liquid crystal interposed between the electrodes is controlled, and the incident light beam is modulated.
The incident side polarizing plate 52 is attached to the light incident surface of the panel body 51 and transmits only predetermined linearly polarized light (linearly polarized light converted by the polarization conversion element 4).
The exit-side polarizing plate 53 is attached to the light exit surface of the panel body 51 and transmits only linearly polarized light having a polarization direction orthogonal to the polarization direction of the linearly polarized light converted by the polarization conversion element 4.

[Configuration of FPC]
The FPC 6 is formed by patterning signal wiring (signal line for driving the liquid crystal panel 5 or the like) on a base material such as polyimide, and electrically connects the control substrate and the liquid crystal panel 5 to each other. Connecting.
That is, one end of the FPC 6 is electrically connected to an external circuit connection terminal (not shown) formed near the end of the liquid crystal panel 5 by crimping or the like.
Further, a connector (not shown) is provided on the other end side of the FPC 6 and is electrically connected to the control board via the connector.

[Case structure]
The housing 8 houses the light source device 2, the first and second lenses 3A and 3B, the polarization conversion element 4, the liquid crystal panel 5, and the projection lens 7.
In the present embodiment, as shown in FIG. 3 or 4, the housing 8 includes the light source device 2, the first and second lenses 3 </ b> A and 3 </ b> B, the polarization conversion element 4, the liquid crystal panel 5, and the projection lens 7 in a linear shape. It is comprised so that it may be arrange | positioned.
As shown in FIG. 3 or 4, the housing 8 includes a first housing portion 81 and a second housing portion 82 that are configured separately from each other, and the first and second housing portions 81, 82. By combining each other, it has a substantially rectangular parallelepiped shape.

In the following, for convenience of explanation, on the outer surface of the housing 8, the upper surface is the first side surface 8U, and in FIGS. 3 and 4, the left surface is the second side surface 8L and the lower surface is viewed from the projection side. 3D, FIG. 3 and FIG. 4, the right side when viewed from the projection side is the fourth side surface 8R, the projection side surface is the fifth side surface 8P, and the surface facing the fifth side surface 8P is the sixth side surface 8B. It describes.
And the housing | casing 8 is formed in the container shape which has the 1st opening part 8U1 in the 1st side surface 8U, as shown in FIG. 3 or FIG.

The first housing portion 81 is a portion in which the light source device 2, the first and second lenses 3A and 3B, and the polarization conversion element 4 are housed.
As shown in FIG. 3 or FIG. 4, the first housing 81 includes first and second lenses 3 </ b> A and 3 </ b> B and the polarization conversion element 4 from the first side surface 8 </ b> U side. A plurality of grooves 811 are formed for sliding inside.
In the first housing 81, the sixth side surface 8B communicates with the inside and outside of the first housing 81 as well as the first opening 8U1, as shown in FIG. 3 or FIG. Is formed in the first casing 81. The light source opening 812 is formed.
The sixth side surface 8B of the first housing portion 81 is provided with a positioning structure for the LEDs 22 as with the printed wiring board 21, and the positioning structure will be described later.

The second housing part 82 is a part in which the projection lens 7 is accommodated.
As shown in FIG. 3 or 4, in the second housing portion 82, as shown in FIG. 3 or FIG. 4, a pair of first fixing screws Sc <b> 1 is connected to the second housing portion 82 and the connection member 9. A pair of first screw holes 821 are formed.
In the second casing 82, the fifth side surface 8P communicates with the inside and outside of the second casing 82 as well as the first opening 8U1, as shown in FIG. 3 or FIG. A passage opening 822 for passing the light beam projected by the lens 7 is formed.
In the casing 8 described above, the liquid crystal panel 5 includes the first and second casing sections 81 and 82 via the sheet metal member 10 described later in a state where the first and second casing sections 81 and 82 are combined. (Connection position).

Then, on the second side surface 8L, the first insertion portion for routing the FPC 6 to the outside of the housing 8 as shown in FIG. 2 or FIG. 3 at the connection position of the first and second housing portions 81 and 82. 8L1 is formed.
Also in the third side surface 8D, the second insertion portion through which a part of the liquid crystal panel 5 is inserted at the connection position of the first and second housing portions 81 and 82 as shown in FIGS. 8D1 is formed.
Specifically, the first and second housing portions 81 and 82 are set so that the end portions on the second side surface 8L and the side are separated from each other by a predetermined interval in a state where they are combined with each other. The separated portion functions as the first insertion portion 8L1 described above. The same applies to the second insertion portion 8D1.

Here, the sheet metal member 10 is a member formed so that the plate-like first plate portion 11 and the second plate portion 12 are parallel to each other with a step as shown in FIG. 3 or FIG. 4. .
The first plate portion 11 is sandwiched between the polarization conversion element 4 and the bottom portion of the first casing portion 81 in a state where the polarization conversion element 4 is accommodated in the first casing portion 81.
Further, as shown in FIG. 2, the second plate portion 12 is pulled out to the outside of the housing 8 via the second insertion portion 8D1, and the liquid crystal panel 5 is placed and fixed.
As shown in FIG. 1, the liquid crystal panel 5 partially protrudes from the first opening 8 </ b> U <b> 1 while being housed in the housing 8 via the sheet metal member 10. A part of the liquid crystal panel 5 inserted into the second insertion portion 8D1 is substantially flush with the third side surface 8D as shown in FIG.

[Configuration of connecting members]
The connection member 9 is a member that is connected to the first and second casing portions 81 and 82 and integrates the first and second casing portions 81 and 82. As shown in FIG. 3 or FIG. A member main body 91 and a reinforcing portion 92 are provided.
As shown in FIG. 3 or FIG. 4, the connecting member main body 91 has a plate-like lid portion 911 having substantially the same planar shape as the first side surface 8U of the housing 8 and the sixth side surface 8B of the housing 8. And a plate-like light source connection portion 912 having the same planar shape.
The lid portion 911 functions as a lid body that contacts the first side surface 8U and closes the first opening portion 8U1 in a state where the connection member 9 is connected to the housing 8.

In the lid portion 911, the first opening is provided at a position corresponding to the arrangement position of the liquid crystal panel 5 with the connection member 9 connected to the housing 8 as shown in FIG. 1, FIG. 3, or FIG. 4. A substantially rectangular second opening 911A into which a part of the liquid crystal panel 5 protruding from the portion 8U1 is inserted is formed.
In the lid portion 911, a pair of first fixing screws Sc1 are provided at positions corresponding to the pair of first screw holes 821 of the housing 8 in order to connect the second housing portion 82 and the connecting member 9, respectively. A pair of fixing holes 911B to be inserted is formed.
Further, in the lid portion 911, a position corresponding to the position where the projection lens 7 is disposed is substantially rectangular for exposing a part of the projection lens 7 to the outside in a state where the connection member 9 is connected to the housing 8. A lens opening 911C having a shape is formed.

The light source connection portion 912 is substantially suspended from the edge of the lid portion 911 on the sixth side surface 8B side, and the printed wiring board 21 is connected to the sixth side surface 8B in a state where the connection member 9 is connected to the housing 8. Hold it.
The light source connection portion 912 is provided with a positioning structure for the LEDs 22 as in the printed wiring board 21 and the first housing portion 81. The positioning structure will be described later.
The reinforcing portion 92 is configured by a rectangular plate body that substantially hangs down from the edge of the lid portion 911 on the second side surface 8L side, and the connection member 9 is connected to the housing 8 as shown in FIG. 1 or FIG. In this state, the second side surface 8 </ b> L is disposed facing the second side surface 8 </ b> L at a predetermined interval so as to straddle the connection position of the first and second housing portions 81 and 82.
The connecting member 9 described above is made of a heat conductive material such as copper.

[LED positioning structure]
FIG. 5 is a view for explaining the positioning structure of the LED 22. Specifically, FIG. 5 is an exploded perspective view of the first housing part 81, the light source device 2, and the light source connection part 912 as seen from the sixth side face 8B side.
First, the positioning structure provided on the printed wiring board 21 will be described.
In the printed wiring board 21, at positions facing each other with the mounting position C where the LEDs 22 are mounted as a center, as shown in FIG. 5, a pair of second fixing screws Sc2 are inserted through the front and back, respectively. A first fixing hole 211 is formed.
In addition, a pair of positioning holes 212 are formed at positions avoiding the pair of first fixing holes 211 so as to face each other with the mounting position C as a center.

Next, the positioning structure provided in the first housing part 81 will be described.
In the sixth side surface 8B of the first housing portion 81, the first housing portion 81 and the connection member 9 are connected to positions corresponding to the pair of first fixing holes 211 as shown in FIG. A pair of second screw holes 813 into which the pair of second fixing screws Sc2 are respectively screwed are formed.
Further, on the sixth side surface 8B, a pair of positioning protrusions 814 that are respectively fitted to the pair of positioning holes 212 are formed at positions corresponding to the pair of positioning holes 212.

Next, the positioning structure provided in the light source connection part 912 will be described.
In the light source connection portion 912, a pair of second fixing screws are provided at positions corresponding to the pair of first fixing holes 211 in order to connect the connection member 9 and the first housing portion 81 as shown in FIG. A pair of second fixing holes 912A are formed through which Sc2 is inserted.

The pair of positioning protrusions 814 are respectively fitted in the pair of positioning holes 212, whereby the LED 22 is positioned at an emission position where the light beam is emitted to the liquid crystal panel 5.
Further, the first and second fixing screws Sc1 and Sc2 are screwed into the first and second screw holes 821 and 813 through the holes 911B, 912A and 211, so that the first connection member 9 The second housing parts 81 and 82 are integrated, and the printed wiring board 21 is sandwiched between the sixth side face 8B and the light source connection part 912.
And in this state, the light source connection part 912 connects with the light source device 2 (LED22 via the printed wiring board 21) so that heat transfer is possible. Further, a part of the liquid crystal panel 5 protruding from the first opening 8U1 is substantially flush with the upper surface of the lid 911 as shown in FIG.

According to this embodiment described above, there are the following effects.
In the present embodiment, first and second insertion portions 8L1 and 8D1 are formed in the housing 8 at positions where the liquid crystal panel 5 is disposed.
As a result, by inserting a part of the liquid crystal panel 5 into the second insertion portion 8D1, the liquid crystal panel 5 is placed on the third side surface 8D (enclosure with respect to the other optical components 2, 3A, 3B, 4, 7). It can be positioned at a position offset to the bottom part) side of the body 8.
Further, by forming the first insertion portion 8L1 on the second side surface 8L of the housing 8, the FPC 6 can be routed from the side of the housing 8 to the outside of the housing 8 via the first insertion portion 8L1. .
Furthermore, as the height dimension of the side walls (second and fourth side surfaces 8L and 8R) of the housing, as described above, the liquid crystal panel 5 is positioned at a position offset to the third side surface 8D side. Even if the size is reduced, the connecting portion between the liquid crystal panel 5 and the FPC 6 can be sufficiently covered.
For the above reasons, the thickness dimension of the bottom portion of the housing 8 and the height of the side walls (second and fourth side surfaces 8L, 8R) in addition to the thickness dimension of the projector 1 (vertical height dimension in FIGS. 1 and 2). Since the height dimension is not added, the projector 1 can be thinned so that the thickness dimension of the projector 1 is approximately the same as the height dimension of the liquid crystal panel 5.

The first and second insertion portions 8L1 and 8D1 are formed by combining the first and second housing portions 81 and 82.
Accordingly, for example, the first and second insertion portions 8L1 and 8D1 can be easily formed as compared with the case where the housing 8 is formed of a single member.
In addition, since the first and second insertion portions 8L1 and 8D1 communicate with each other, the liquid crystal panel 5 can be easily incorporated into the housing 8.
Further, the illumination system 2, 3 </ b> A, 3 </ b> B, 4 is accommodated in the first casing 81 and the projection lens 7 is accommodated in the second casing 82, so that these optical components are accommodated in the casing 8. The positional relationship between the illumination systems 2, 3A, 3B, 4 and the projection lens 7 can be easily adjusted (optical axis adjustment).

In addition, since the projector 1 includes the connection member 9, the first and second housing parts 81 and 82 that are separate from each other are used as the first and second connection members 9. The second casing portions 81 and 82 can be integrated to increase the strength of the casing 8.
Furthermore, since the connection member 9 includes the connection member main body 91 and the reinforcing portion 92, two different surfaces (first and second side surfaces 8U) straddle the connection positions of the first and second casing portions 81 and 82 having low strength. , 8L), the strength of the housing 8 can be effectively increased by reinforcing the connecting member main body 91 and the reinforcing portion 92 from the side.

The first insertion portion 8L1 is formed on the second side surface 8L. In other words, when the FPC 6 is routed outside the housing 8 via the first insertion portion 8L1, the FPC 6 is routed to the side where the reinforcing portion 92 is disposed.
Accordingly, it is possible to prevent the first insertion portion 8L1 from being closed while reinforcing the housing 8 with the reinforcing portion 92, and to prevent a problem from occurring in the connection portion between the liquid crystal panel 5 and the FPC 6.

Further, the housing 8 is configured such that a part of the liquid crystal panel 5 protrudes from the first opening 8U1 which is a container-like opening portion, and the connection member main body 91 has the first opening 8U1 of the housing 8 open. It is attached to the first side surface 8U so as to be closed. At this time, since the second opening 911A is formed in the connection member main body 91, when the connection member main body 91 is attached to the housing 8, a part of the liquid crystal panel 5 is inserted into the second opening 911A. Therefore, the connection member main body 91 does not mechanically interfere with the liquid crystal panel 5.
Therefore, the connecting member 9 can be provided with a function as a lid for closing the opening of the housing 8 in addition to the function of increasing the strength of the housing 8. In addition, since the second opening 911 </ b> A is formed in the lid 911, the thickness dimension of the projector 1 is not added to the thickness dimension of the projector 1, and the thickness dimension of the projector 1 is the height dimension of the liquid crystal panel 5. It can be set to approximately the same size.

Further, since the connection member 9 includes the light source connection part 912, the heat generated by the lighting drive of the LED 22 can be radiated to the outside through the heat transfer path of the LED 22 to the printed wiring board 21 to the connection member 9 (light source connection part 912). . For this reason, the thermal deterioration of the light source device 2 can be effectively suppressed.
Furthermore, since the second opening 911 </ b> A is formed in the connection member 9, it is possible to suppress the heat transmitted from the light source device 2 to the connection member 9 from being transmitted to the liquid crystal panel 5.

It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
In the above-described embodiment, the liquid crystal panel 5 is configured by a transmissive liquid crystal panel. However, the present invention is not limited thereto, and may be configured by a reflective liquid crystal panel.
Further, in the liquid crystal panel 5, a color filter may be provided as appropriate, and a color image may be formed by displaying three colors of red (R), green (G), and blue (B) for each pixel. Absent.
In the embodiment described above, the housing 8 is composed of two bodies, the first and second housing portions 81 and 82 that are configured separately from each other. I do not care.
In the embodiment, the light source device 2 is configured by an LED. However, the present invention is not limited thereto, and other light emitting elements such as a laser diode, an organic EL (Electro Luminescence) element, and a silicon light emitting element may be employed. Absent.

  The present invention can be used for a projector including a light source device, a light modulation device that modulates a light beam emitted from the light source device, and a projection optical device that projects a light beam modulated by the light modulation device.

  DESCRIPTION OF SYMBOLS 1 ... Projector, 2 ... Light source device, 5 ... Liquid crystal panel (light modulation device), 6 ... FPC (flexible substrate), 7 ... Projection lens (projection optical device), ... -Housing, 8U ... first side, 8U1 ... first opening, 8L ... second side, 8L1 ... first insertion part, 8D1 ... second insertion part, 9 ... Connection member 81... First housing part 82... Second housing part 91... Connection member main body 92 .. Reinforcing part 911 A. ..Light source connection part.

Claims (7)

  1. A projector comprising: a light source device; a light modulation device that modulates a light beam emitted from the light source device; and a projection optical device that projects the light beam modulated by the light modulation device,
    A flexible substrate having one end connected to the light modulation device;
    A housing for housing the light source device, the light modulation device, and the projection optical device;
    At the position where the light modulation device is disposed in the housing,
    A first insertion part for routing the flexible substrate to the outside of the housing;
    And a second insertion portion through which a part of the light modulation device is inserted.
  2. The projector according to claim 1.
    The housing is
    Comprising a first housing part and a second housing part configured separately from each other and combined with each other;
    The light modulation device comprises:
    Disposed at a connection position of the first casing and the second casing;
    The first insertion part and the second insertion part are
    The projector is formed by combining the first housing unit and the second housing unit.
  3. The projector according to claim 2,
    A projector comprising: a connection member that integrates the first housing part and the second housing part.
  4. The projector according to claim 3.
    The housing is
    The first housing part and the second housing part are combined to have a substantially rectangular parallelepiped shape,
    The connecting member is
    A connection member body attached to the first side surface of the housing so as to straddle the connection position;
    A projector comprising: a reinforcing portion that protrudes from the connection member main body and is disposed to face a second side surface different from the first side surface of the housing so as to straddle the connection position.
  5. The projector according to claim 4,
    The first insertion part is
    A projector formed on the second side surface.
  6. The projector according to any one of claims 3 to 5,
    The housing is
    The first housing part and the second housing part are combined to have a substantially rectangular parallelepiped shape,
    The connecting member is
    A connection member main body attached to the first side surface of the housing so as to straddle the connection position;
    In the first side surface,
    A first opening for inserting the light modulation device into the housing is formed,
    The light modulation device comprises:
    In a state of being housed in the housing, a part projects from the first opening,
    In the connection member body,
    A projector having a second opening through which a part of the light modulation device protruding from the first opening is inserted.
  7. The projector according to any one of claims 3 to 6,
    The connecting member is
    A projector comprising: a light source connection portion configured of a heat conductive material and connected to the light source device so as to be capable of transferring heat.
JP2011137999A 2011-06-22 2011-06-22 projector Active JP5754260B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011137999A JP5754260B2 (en) 2011-06-22 2011-06-22 projector

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2011137999A JP5754260B2 (en) 2011-06-22 2011-06-22 projector
RU2014101722/28A RU2014101722A (en) 2011-06-22 2012-06-13 Projector
US14/124,485 US9316896B2 (en) 2011-06-22 2012-06-13 Projector with housing inserts
PCT/JP2012/003862 WO2013018266A1 (en) 2011-06-22 2012-06-13 Projector with housing for inserting light modulator with flexible printed circuit board
BR112013033198A BR112013033198A2 (en) 2011-06-22 2012-06-13 projector with housing for inserting light modulator with flexible printed circuit board
EP12737620.0A EP2724195B1 (en) 2011-06-22 2012-06-13 Projector with housing for inserting light modulator with flexible printed circuit board
EP14175699.9A EP2816407B1 (en) 2011-06-22 2012-06-13 Projector with thermally conductive member surrounding its housing
CN201210208837.6A CN102841493B (en) 2011-06-22 2012-06-19 Projector

Publications (2)

Publication Number Publication Date
JP2013003551A true JP2013003551A (en) 2013-01-07
JP5754260B2 JP5754260B2 (en) 2015-07-29

Family

ID=47672146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011137999A Active JP5754260B2 (en) 2011-06-22 2011-06-22 projector

Country Status (1)

Country Link
JP (1) JP5754260B2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5912773A (en) * 1997-03-21 1999-06-15 Texas Instruments Incorporated Apparatus for spatial light modulator registration and retention
JP2006139022A (en) * 2004-11-11 2006-06-01 Seiko Epson Corp Projector
JP2006171268A (en) * 2004-12-15 2006-06-29 Seiko Epson Corp Projection optical unit and projector using same
US20070195282A1 (en) * 2006-02-23 2007-08-23 Seiko Epson Corporation Projector
US20080174741A1 (en) * 2006-09-29 2008-07-24 Seiko Epson Corporation Optical device and projector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5912773A (en) * 1997-03-21 1999-06-15 Texas Instruments Incorporated Apparatus for spatial light modulator registration and retention
JP2006139022A (en) * 2004-11-11 2006-06-01 Seiko Epson Corp Projector
JP2006171268A (en) * 2004-12-15 2006-06-29 Seiko Epson Corp Projection optical unit and projector using same
US20070195282A1 (en) * 2006-02-23 2007-08-23 Seiko Epson Corporation Projector
US20080174741A1 (en) * 2006-09-29 2008-07-24 Seiko Epson Corporation Optical device and projector

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