JP2011081141A - Lens array unit, electrooptical apparatus and electric apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lens array unit that controls a focal distance of a lens with high accuracy without the need of an advanced processing accuracy and a complicated structure, and to provide an electrooptical apparatus and electric apparatus. <P>SOLUTION: The lens array unit 4 includes: a plurality of lens units 5; and support members 7 that are arranged adjacent to each lens unit 5. The support members 7 are deformed by extraneous stimulus, whereas the plurality of lens units 5 are deformed to change surface curvature by receiving stress caused by deformation of the support members 7. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a lens array unit, an electro-optical device, and an electronic apparatus.

  In a small lens such as a microlens, precisely controlling the focal length changes the curvature of a minute lens, which is very difficult in terms of processing accuracy. The current microlenses are mainly fixed-focus types in which the surface of the optical material is physically processed. When changing the focal length, it is common to move the focal length mechanically by combining multiple lenses. .

  In recent years, several variable focus lenses using polymer actuators have been disclosed (for example, Patent Documents 1 to 3). This utilizes the fact that an electric field is applied to the inside of the polymer and the polymer material is deformed by electrostatic attraction of electric charge to cause a change in curvature.

JP 2006-309112 A JP 2007-114608 A JP 2007-57716 A

  However, in the case of the above configuration, it is necessary to use a material that reacts to an electric field as the lens material. That is, the material used for the lens must be able to respond to the stimulus and be deformed, and the range of selection of the optical material is reduced.

  The present invention has been made in view of the above-described problems of the prior art, and does not require high processing accuracy or complicated mechanisms, and can control the focal length of a lens with high accuracy, and an electro-optical unit. An object is to provide an apparatus and an electronic device.

  In order to solve the above problems, the lens array unit of the present invention is a lens array unit that condenses incident light, and a plurality of optical members, and a support member provided corresponding to the plurality of optical members, The support member is deformed by an external stimulus, and the optical member is deformed so as to change the curvature of the surface in response to the stress accompanying the deformation of the support member.

  According to the present invention, since the support member that is deformed by an external stimulus is provided, each optical member receives the stress accompanying the deformation of the support member and is deformed so as to change the curvature of the surface. It is possible to change the distance. Thus, the focal length can be easily controlled by deforming the optical member so as to change the curvature of the surface by utilizing the deformation action of the support member.

  Accordingly, the focal length of the optical member can be easily changed without requiring high processing accuracy or a complicated mechanism, and the focal length of the optical member can be controlled with high accuracy. In addition, since no mechanical drive is used, it is possible to construct a microdevice with higher accuracy, lighter weight and lower power consumption. In addition, the range of selection of materials that can be used as optical members is widened.

Further, the support member is preferably deformed by a temperature change.
According to the present invention, since the support member is deformed by a temperature change, it is possible to easily deform or restore the original shape by heating or cooling the support member.

Further, the support member is preferably deformed by application of a voltage.
According to the present invention, since the support member is deformed by the application of voltage, it can be easily deformed or restored to its original shape by stopping the application or application of voltage to the support member.

Moreover, it is preferable to provide a heating means for heating the support member.
According to the present invention, since the heating means for heating the support member is provided, the deformation amount of the optical member, that is, the focal length can be controlled by adjusting the heating temperature of the support member by the heating means. .

Moreover, it is preferable to provide the light absorption member which opposes the said supporting member in an optical axis direction.
According to the present invention, it is possible to heat the support member via the light absorption member by providing the light absorption member facing the support member in the optical axis direction.

Moreover, it is preferable that the said supporting member has light-shielding property.
According to the present invention, since the support member has a light shielding property, it can be used as a parallax barrier having the support member as a barrier and an optical material as a transmission portion.

Moreover, it is preferable that the said supporting member has poly (N-isopropylacrylamide) as a main component.
According to the present invention, since the support member contains poly (N-isopropylacrylamide) as a main component, the shape change such as expansion and contraction is exhibited due to the temperature change.

Moreover, it is preferable that the deformation of the support member and the optical member is reversible.
According to the present invention, since the deformation of the support member and the optical member is reversible, the focal length of the optical member can be accurately controlled.

  The electro-optical device of the present invention is disposed on the viewing side of the display panel, a display panel having a plurality of pixels, an illumination device that irradiates the display panel, and is provided corresponding to the plurality of optical members and each optical member. A lens array in which the support members are deformed by an external stimulus, and the plurality of optical members are deformed so as to change the curvature of the surface in response to the stress accompanying the deformation of the support members. And a unit.

  According to the present invention, the support member of the lens array unit is deformed by an external stimulus, and the optical member is deformed so as to change the curvature of the surface in response to the stress accompanying the deformation. It is possible to change. Therefore, it is possible to easily control the focal length of the lens array unit without requiring high processing accuracy and complicated mechanisms. In addition, since the mechanical drive is not used, an electro-optical device with higher accuracy, lighter weight, and lower consumption of electrodes can be obtained.

Moreover, it is preferable to provide a heating means for heating the support member.
According to the present invention, since the heating means for heating the support member is provided, the support member and thus the optical material can be deformed by the temperature change.

Moreover, it is preferable that the said heating means has a transparent conductive film provided on the board | substrate.
According to the present invention, since the heating unit includes the transparent conductive film provided on the substrate, it is possible to change the temperature of the support member with a simple configuration.

An electronic apparatus comprising the electro-optical device described above.
The electronic apparatus of the present invention has a high quality with excellent visibility by including the electro-optical device described above.

1 is a diagram illustrating an overall configuration of a stereoscopic image forming apparatus that is an embodiment of an electro-optical device according to the invention. The top view which shows schematic structure of a lens array unit (barrier member). Sectional drawing which shows the deformation | transformation state of a supporting member. It is a partial expanded sectional view which shows the principal part structure of a lens array unit, Comprising: (a) Sectional view before an optical member (support member) deformation | transformation, (b) Sectional view after an optical member (support member) deformation | transformation. It is sectional drawing for demonstrating the principle of a lens array unit, Comprising: (a) Sectional drawing before an optical member (supporting member) deformation | transformation, (b) Sectional drawing after an optical member (supporting member) deformation | transformation. The graph which shows the relationship between the lens width after a deformation | transformation, and the curvature of a lens surface. (A) is a graph showing the relationship between the lens width and focal length, and (b) is a graph showing the relationship between the contraction rate of the lens width and the focal position. FIG. 6 is a cross-sectional view showing a schematic configuration of a lens array unit in Modification 1; FIG. 10 is a diagram illustrating a schematic configuration of a lens array unit according to Modification 2. FIG. 10 is a diagram illustrating a schematic configuration of a lens array unit according to Modification 3. The top view which shows the modification of a lens array part. The top view which shows the other modification of a lens array part. It is a schematic block diagram of a head-up display. It is the figure which looked at the image of the head-up display from the vehicle driver's seat.

  Embodiments of the present invention will be described below with reference to the drawings. In each drawing used for the following description, the scale of each member is appropriately changed to make each member a recognizable size.

(First embodiment)
FIG. 1 is a diagram illustrating an overall configuration of a stereoscopic image forming apparatus that is an embodiment of an electro-optical device according to the present invention, and FIG. 2 is a plan view illustrating a schematic configuration of a lens array unit (barrier member). 3A and 3B are cross-sectional views showing a state before and after deformation of the support member.

  As shown in FIG. 1, a stereoscopic image forming apparatus (electro-optical device) 1 according to the present embodiment includes a liquid crystal display panel (display panel) 2 having stereoscopic video information, an illumination device 3 that illuminates the liquid crystal display panel 2, and A lens array unit 4 disposed on the viewing side of the liquid crystal display panel 2, and thereby the left-eye image and the right-eye image displayed on the liquid crystal display panel 2 are shifted left and right. A stereoscopic image is displayed separately.

  In the display area 2 </ b> A of the liquid crystal display panel 2, the left-eye pixels L and the right-eye pixels R are alternately arranged in the left-right direction. In other words, all pixels are pixels for the right eye in the odd-numbered area, and all pixels are pixels for the left-eye in the even-numbered area, and the light from these right-eye and left-eye pixels is all connected to separate areas. Image. For this reason, an observer who is in an appropriate viewing position who can appreciate a stereoscopic image well recognizes the left-eye image by observing the left-eye pixel through the lens unit 5 of the lens array unit 4 with the left eye. Then, the right eye image is recognized by observing the right eye pixel through the lens unit 5 with the right eye, and the stereoscopic image is recognized by the binocular parallax.

  The lens array unit 4 has a function of condensing (spectralizing) light incident from the liquid crystal display panel 2, and includes a barrier member 6 and a lens array unit 10. One surface side of the barrier member 6 (observer) The lens array unit 10 is disposed on the side. The lens array unit 10 includes a plurality of lens units 5 (optical material) having a spectroscopic function and a support member 7 provided corresponding to each lens unit 5, and each lens unit 5 and each support member 7 are They are adjacent to each other and are alternately arranged in a vertical stripe shape (FIG. 2).

  The support member 7 is made of a material that can be deformed by an external stimulus, and the lens unit 5 is made of a light-transmitting material that can be deformed as the support member 7 is deformed. Each lens unit 5 is deformed so as to change the curvature of the surface (diffractive optical surface) in response to stress accompanying deformation of the adjacent support member 7.

  The external stimulus includes temperature and the like, and the support member 7 that can be deformed by such an external stimulus is formed of a material mainly composed of poly (N-isopropylacrylamide). Poly (N-isopropylacrylamide) is known to exhibit shape deformation such as expansion and contraction due to temperature changes. By disposing the support members 7 formed mainly of this material alternately with the lens portions 5, it becomes possible to vary the curvature of the surface of the lens portions 5 adjacent thereto as the support members 7 are deformed. ing.

  Here, the deformation of the support member 7 and the lens portion 5 of the lens array unit 4 is reversible, and the curvature radius of the lens portion 5 is large (FIG. 3A) to the small curvature (FIG. 3B). ) Or vice versa. The focal length decreases as the radius of curvature of the lens unit 5 decreases.

  As shown in FIG. 2, the barrier member 6 includes a plurality of light absorbing members 8 and a plurality of light transmitting members 9, and the light absorbing members 8 and the light transmitting members 9 are alternately arranged in a vertical stripe shape. ing. Specifically, in the optical axis direction of light incident from the liquid crystal display panel 2, each light absorbing member 8 faces the support member 7 of the lens array unit 4, and each light transmission member 9 faces the lens unit 5. It is comprised as follows.

  The light absorbing member 8 is made of a black colored material, and its temperature rises by absorbing light emitted from the liquid crystal display panel 2. The temperature of the light absorbing member 8 is transmitted to the support member 7, and finally the temperature of the support member 7 rises. That is, the temperature of the support member 7 can be adjusted by controlling the amount of light of the illumination device 3, and as a result, the distortion (deformation amount) of the lens unit 5 can be controlled.

  Further, since the light absorbing member 8 has a light shielding property, the light absorbing member 8 has a parallax barrier function by being alternately arranged with the light transmitting member 9. When an image displayed on the liquid crystal display panel 2 is observed through the barrier member 6, the right-eye image and the left-eye image are separated by the barrier member 6, and parallax is generated, and the observer recognizes the stereoscopic image. be able to.

  Such a barrier member 6 is integrated with the lens array unit 10. For example, the center portion of each light absorbing member 8 and the center portion of each supporting member 7 are fixed to each other in the arrangement direction of the supporting member 7 of the lens array unit 10 and the light absorbing member 8 of the barrier member 6. preferable. In this way, by fixing only the central portion of the support member 7 that does not change in position relative to the light absorbing member 8 before and after the deformation, it is provided on both sides of the support member 7 via the fixed portions without hindering the deformation of the support member 7. Symmetric deformation is possible. Thereby, a uniform stress is given to the adjacent lens portions 5.

  Of the plurality of support members 7 of the lens array unit 4, at least the side end portions of the support members 7 a, 7 a located on the most side in the arrangement direction and the light absorption members 8 of the barrier member 6 are arranged. The light absorbing members 8a and 8a located on the most both sides in the direction may be fixed to the side end portions.

Next, the principle of the lens array unit of this embodiment will be described.
FIGS. 4A and 4B are partially enlarged cross-sectional views showing the main configuration of the lens array unit, showing (a) the optical member (support member) before deformation and (b) the optical member (support member) after deformation.

  As shown in FIG. 4, the lens array unit 4 of the present embodiment has support members 7 and 7 arranged on both sides of the optical member 15, and the surface 15 a of the optical member 15 is flat before each deformation. It has become. The lens portion 5 refers to a state in which the surface 15a of the optical member 15 is deformed into a convex shape due to stress accompanying deformation (expansion) of the adjacent support members 7 and 7.

FIG. 5 is a cross-sectional view for explaining the principle of the lens array unit, and shows a state after (a) the optical member (support member) is deformed and (b) after the optical member (support member) is deformed.
As shown in FIG. 5, the width of the optical member 15 before deformation is L, and the width of the optical member 15 after deformation is L1 (μm). The radius of curvature of the optical member 15 is R (μm). This

となる。

It becomes.

  Here, the maximum value of the lens width L1 after the deformation is 10 μm. The optical material is deformed until L1 becomes the diameter of the circle. Also, since the length of the arc is always L,

が成立する。

Is established.

  From the numbers (1) and (2), the lens width L1 after deformation is

となる。

It becomes.

FIG. 6 shows the relationship between the lens width (space) L1 after deformation and the curvature radius R of the lens surface.
As shown in FIG. 6, the focal length is infinite when the lens width L1 is about 10 μm. In other words, this indicates the dimension of the lens width L before deformation (L = L1 = 10 μm). According to this figure, it can be seen that the radius of curvature of the lens decreases as the lens width L1 decreases. The minimum value Rmin of the radius of curvature R of the lens is

となる。

It becomes.

  On the other hand, when the focal length f of the superposed two convex lenses is the refractive index n and the lens thickness d,

となる。

It becomes.

Here, r ₁ and r ₂ are the radii of curvature of the lenses, respectively.

If the surface of the lens is flat, r ₂ → ∞,

となる。

It becomes.

  Therefore, the focal length f in this embodiment is

となる。

It becomes.

  By substituting the radius of curvature R obtained by the above equation (3) into the equation (7), the focal length can be obtained by setting the refractive index of the lens to 1.67.

FIG. 7A shows the relationship between the lens width and the focal length, and FIG. 7B shows the relationship between the contraction rate of the lens width and the focal position.
From FIG. 7A, the focal length in the state before the lens deformation is ∞, but a finite focal length can be obtained by slightly inducing the deformation.

  Further, it is assumed that the lens width L1 is reduced by about ΔL1 (ΔL1 = 10−L1) due to the expansion of the support member 7. In this case, the relationship between the contraction rate ΔL1 / L1 of the lens width L1 and the focal length can greatly change the focal length with a contraction rate of several percent, as shown in FIG. 7B.

  As described above, by disposing the support member 7 on both sides of the optical member 15, the lens unit 5 having a variable focal length can be formed. When the distortion of the support member 7 is 0, the focal length is infinite, so there is no particular directivity. However, if a unit in which a plurality of these lens portions 5 and support members 7 are alternately arranged is installed on the backlight unit. Directivity can be imparted to the liquid crystal display panel 2 in a state where the optical member 15 is deformed to form the lens unit 5.

  The lens array unit 4 of the stereoscopic image forming apparatus 1 in this embodiment includes a plurality of lens units 5 and a plurality of support members 7 disposed adjacent to the lens units 5, and these support members 7 are external. The plurality of lens portions 5 are deformed so as to change the curvature of the surface in response to stress accompanying deformation of the support member 7.

  In this way, each lens unit 5 adjacent to the support member 7 is deformed so as to change the curvature of the surface 5a under the stress accompanying the deformation of the support member 7, thereby changing the focal length of the lens unit 5. Is possible. Therefore, the focal length can be easily controlled by deforming the lens portion 5 so as to change the curvature of the surface 5a by utilizing the deformation action of the support member 7.

  Accordingly, the focal length of the lens unit 5 can be easily changed without requiring high processing accuracy or a complicated mechanism, and the focal length of the lens unit 5 can be controlled with high accuracy. Further, since the mechanical drive is not used, the stereoscopic image forming apparatus 1 with higher accuracy, lighter weight and lower power consumption can be obtained. Further, the range of selection of materials that can be used as the lens unit 5 is also widened.

  The support member 7 is mainly composed of poly (N-isopropylacrylamide), and exhibits a shape change such as expansion and contraction due to a temperature change. For this reason, it is possible to deform the support member 7 using the light emitted from the liquid crystal display panel 2. The temperature of the support member 7 can be adjusted by adjusting the amount of light from the illumination device 3. Further, by using a material having a good response to temperature, the focal length of the lens unit 5 can be adjusted with good control.

  In addition, by providing the barrier member 6 having the light absorbing member 8 facing each support member 7 of the lens array unit 4 in the optical axis direction, the temperature of the support member 7 can be efficiently changed via the light absorbing member 8. Is possible.

  In addition, the deformation of the support member 7 and the lens unit 5 is reversible, so that the focal length of the lens unit 5 can be accurately controlled without deterioration for a long time.

  The stereoscopic image forming apparatus in this example includes the lens array unit 4 having the above-described configuration, so that the focal length of the lens array unit 4 can be easily adjusted without requiring high processing accuracy and complicated mechanisms. Can be controlled. In addition, since no mechanical drive is used, an electro-optical device with more accuracy, lighter weight, and lower consumption of electrodes can be obtained, and the versatility becomes high.

  Next, a modified example of the stereoscopic image forming apparatus of the present invention will be described. The basic configuration of the stereoscopic image forming apparatus is substantially the same, but the configuration of the lens array unit is different. Therefore, in the following description, the deformation part of the lens array unit will be described in detail, and description of common parts will be omitted. Moreover, in each drawing used for description, the same code | symbol shall be attached | subjected to the same component as FIGS. In addition, in FIGS. 8-12 shown below, a part of lens array unit is expanded and shown.

(Modification 1)
FIG. 8 is an enlarged cross-sectional view showing the main configuration of the lens array unit in Modification 1, and (a) to (c) show variations of the heating device.
The lens array unit in Modification 1 has a configuration including a heating device 21 for heating the support member 7 as shown in FIG. The heating device 21 includes a substrate 22 in which a plurality of support members 7 and a plurality of lens portions 5 are alternately arranged on one surface side of an observer side, and a surface 22a in which the support members 7 and the lens portions 5 are arranged. And a transparent conductive film 23 formed on the entire opposite surface 22b. An external terminal (not shown) is connected to the transparent conductive film 23, generates heat when a predetermined voltage is input, and heats the support member 7 through the substrate 22.

Examples of the transparent conductive film 23 include an indium tin oxide film, which is formed on the substrate 22 using a sputtering method or the like.
As shown in FIG. 8B, a transparent conductive film 23 may be formed between the substrate 22 and the support member 7 and the lens unit 5. With this configuration, since the support member 7 can be directly heated without using the substrate 22, temperature control becomes easy.
Further, as shown in FIG. 8C, the transparent conductive film 24 may be patterned only in a region corresponding to the support member 7 on the substrate 22.

  By providing the heating device 21 for heating the support member 7 as in this embodiment, the temperature of the support member 7 can be easily adjusted, and the deformation amount of the support member 7, that is, the focal length of the lens unit 5 can be easily controlled. And it becomes possible to carry out with high precision.

(Modification 2)
FIGS. 9A and 9B are diagrams showing a schematic configuration of the lens array unit 30 according to the second modification. FIG. 9A is a cross-sectional view, and FIG.
As shown in FIGS. 9A and 9B, the lens array unit 30 in Modification 2 has a parallax barrier function having a light-shielding support member 31 and a translucent lens portion 5. It has become. The support member 31 is formed using a material in which the above-described poly (N-isopropylacrylamide) as a main component is colored black. In the case of this example, the arrangement of the right-eye pixels and the left-eye pixels of the liquid crystal display panel 2 (see FIG. 1) is an arrangement that takes into account the deformation amount of the support member 31 that is deformed by a temperature change. The size and arrangement are such that the change of the light shielding region accompanying the deformation of the support member 31 can be allowed. That is, even if the light-shielding region changes slightly when the support member 31 is expanded and contracted, the observer's right eye does not observe the left eye pixel (video), and the left eye uses the right eye pixel (video). It has a configuration with a good spectral function without observing.

According to the configuration of the present embodiment, it is not necessary to provide a barrier member, so that the number of parts can be reduced and the apparatus can be reduced in size and weight.
Further, since the black support member 31 has a light absorption property, it is not necessary to separately provide a heating device, and the black support member 31 can be deformed by using light emitted from the liquid crystal display panel 2.

(Modification 3)
FIGS. 10A and 10B are diagrams showing a schematic configuration of the lens array unit 40 in Modification Example 3, wherein FIG. 10A is a cross-sectional view, and FIG. 10B is a main configuration diagram.
As shown in FIG. 10A, the lens array unit 40 according to Modification 3 includes a plurality of support members 41 that are deformed by application of a voltage instead of the support members that are deformed due to temperature changes described above. As shown in FIG. 10B, the support member 41 is formed by sandwiching an electrolyte layer 44 made of a mixture of an ion exchange resin solution and a salt between a pair of deformable sheet members 42 and 43. The support member 41 further includes a power source 45 that applies a voltage between the deformable sheet members 42 and 43. When a voltage is applied between the deformable sheet members 42 and 43, the deformable sheet member 42 expands and the other deformable member is deformed. The sheet member 43 is deformed so as to be curved as a whole by contracting. By such deformation of the support member 41, the lens unit 5 is deformed so as to change the curvature of the surface thereof.

  Examples of the deformable sheet members 42 and 43 include “Nafion” (registered trademark: a product name manufactured by DuPont) as a product name.

  According to the present invention, since the support member 41 and the lens unit 5 that can be deformed by applying a voltage are alternately provided, the lens unit 5 changes the curvature of the surface in response to the stress accompanying the deformation of the support member 41. It deforms as follows. With such a configuration, the focal length of each lens unit 5 can be controlled.

Further, as shown in FIG. 11, a lens array unit 53 in which a plurality of rectangular support members 51 and lens units 52 are alternately arranged in the column direction and the row direction may be provided.
In addition, as shown in FIG. 12, the lens unit 52 and the lens array unit 55 in which a plurality of support members 54 whose width in the row direction is significantly different from the lens unit 52 are alternately arranged in the column direction and the row direction may be provided. Good.
Of course, the shape, size, arrangement, and the like of the support member and the lens portion may be other than those shown in FIGS.

[Electronics]
FIG. 13 is a schematic configuration diagram of a head-up display 1700 which is an embodiment of the electronic apparatus. FIG. 14 is a view of the image of the head-up display 1700 as seen from the vehicle driver's seat.

  In FIG. 13, a vehicle 70 is a sedan type passenger car. The head-up display 1700 is projected onto the electro-optical device 100, a concave mirror (reflection optical system) 71 that projects light L (image light) emitted from the electro-optical device 100 onto the front window 72, and the front window 72. And a front window shield 74 that reflects the reflected light toward the driver's seat. As the electro-optical device 100, the above-described stereoscopic image forming apparatus of the present invention is applied.

  The electro-optical device 100 is housed inside the dashboard 73. The dashboard 73 is provided with an opening 73H for transmitting light L below the front window 72, and the light L reflected by the concave mirror 71 through the opening 73H is reflected on the front window shield 74. Projected on top. The projected image is visually recognized by the vehicle occupant M as a virtual image I.

  Although the front window shield 74 is configured as a sheet-like film such as a half mirror, for example, a part of the light L may be reflected by processing the surface of the front window 72. As shown in FIG. 14, the front window shield 74 is disposed in front of the driver's seat. On the front window shield 74, information such as a speed meter, a remaining amount of gasoline, and a warning are displayed. The occupant M can visually recognize these pieces of information without moving the line of sight greatly during driving.

  Here, the electro-optical device 100 includes the above-described stereoscopic image forming apparatus of the present invention. Therefore, when the occupant M moves his / her line of sight from the front window shield 74 during driving, the image is not distorted and unnecessary stress is not applied to the occupant M. While driving, it is necessary to quickly move the line of sight from the front window shield 74 to the surrounding environment. Even in such a case, since the information is clearly displayed, a comfortable driving environment can be provided. In addition, since the electro-optical device 100 is installed on the narrow dashboard 73, a small and high-definition display device that generates less heat is desirable. However, the electro-optical device 100 according to the present embodiment uses the lens array unit 4 to achieve high-definition and high-light. Since it achieves utilization efficiency, it is an optimal configuration for a head-up display.

  As described above, the preferred embodiments according to the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the examples. It is obvious for those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea described in the claims. It is understood that it belongs to.

  For example, the electro-optical device of the present invention can be applied not only to a head-up display but also to a head-mounted display in which a display display and a viewpoint are fixed. As a result, the amount of light can be adjusted so that light enters most according to the position of the observer's eyes, and a high-quality device with excellent visibility can be obtained. Furthermore, as the display element, a display element other than the liquid crystal panel can be applied.

DESCRIPTION OF SYMBOLS 1 ... Stereoscopic image forming apparatus (electro-optical device), 2 ... Liquid crystal display panel (display panel), 3 ... Illuminating device, 4 ... Lens array unit, 5 ... Lens part (optical member), 5a, 15a ... Surface, 7, DESCRIPTION OF SYMBOLS 41 ... Support member, 8 ... Light absorption member, 15 ... Optical member, 21 ... Heating device (heating means), 23, 24 ... Transparent electrode, 1700 ... Head-up display (electronic device)

Claims (12)

In a lens array unit that collects incident light,
A plurality of optical members, and a support member provided corresponding to the plurality of optical members,
The support member is deformed by an external stimulus,
The lens array unit, wherein the optical member is deformed so as to change a curvature of a surface in response to stress accompanying deformation of the support member.   The lens array unit according to claim 1, wherein the support member is deformed by a temperature change.   The lens array unit according to claim 1, wherein the support member is deformed by application of a voltage.   The lens array unit according to claim 1, further comprising a heating unit that heats the support member.   The lens array unit according to claim 1, further comprising a light absorbing member facing the support member in an optical axis direction.   The lens array unit according to claim 1, wherein the support member has a light shielding property.   The lens array unit according to claim 1, wherein the support member is mainly composed of poly (N-isopropylacrylamide).   The lens array unit according to claim 1, wherein the support member and the optical member are reversibly deformed. A display panel having a plurality of pixels;
An illumination device for illuminating the display panel;
The display panel includes a plurality of optical members and a support member provided corresponding to each optical member, wherein the support member is deformed by an external stimulus, and the plurality of optical members are disposed on the viewing side of the display panel. An electro-optical device, comprising: a lens array unit that deforms so as to change a curvature of a surface in response to stress accompanying deformation of the support member.   The electro-optical device according to claim 9, further comprising a heating unit that heats the support member.   The electro-optical device according to claim 10, wherein the heating unit includes a transparent conductive film provided on a substrate.   An electronic apparatus comprising the electro-optical device according to claim 9.

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