JP2010044206A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device which achieves reduction of cost and thinning, and also obtains desired display characteristics regardless of use environment. <P>SOLUTION: The display device includes: a lens array unit 20 which includes a supporting layer 202, a lens array layer 201, and a polarizing layer 203 held between the supporting layer and the lens array layer; and a display unit 10 which is structured by sticking together a first substrate 11 and a second substrate 12 and has pixels disposed in a matrix. The supporting layer 202 of the lens array unit is bonded to the display unit. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a display device, and more particularly to a stereoscopic image display device including a lens array unit.

  Various methods are known for stereoscopic image display devices capable of displaying moving images, so-called three-dimensional displays. In recent years, there has been a growing demand for a flat panel type method that does not require special glasses. Of this type of stereoscopic video display device, the method using the principle of holography is difficult to realize a full-color video, but the pixel position is fixed as in a direct-view or projection-type liquid crystal display device or plasma display device. A method of installing a light beam control element that controls the light beam from the display unit and directs it to the observer just before the display unit (display device) can be realized relatively easily.

  The light beam control element is generally called a parallax barrier or a parallax barrier, and controls light beams so that different images can be seen depending on the angle even at the same position on the light beam control element.

  The above-described methods using a parallax barrier are further classified into two-lens, multi-view, super-multi-view (multi-view super-multi-view conditions), and integral photography (hereinafter also referred to as IP). Among these, the IP method has a feature that the viewpoint position is highly flexible and stereoscopic viewing can be easily performed. As described in Non-Patent Document 1, the one-dimensional IP method with only horizontal parallax and no vertical parallax can relatively easily realize a display device with high resolution. On the other hand, the binocular method and the multi-view method have a problem that the range of viewpoint positions that can be viewed stereoscopically, that is, the viewing range is narrow and difficult to see, but the configuration as a stereoscopic image display device is the simplest, and the display image Can also be created easily.

On the other hand, as a stereoscopic display that requires dedicated glasses, for example, according to Patent Document 1, a stereoscopic display in which the stereoscopic viewing area in the vertical direction of the screen is enlarged is disclosed.
SID04 Digest 1438 (2004) JP 2002-148651 A

  In a direct-view type autostereoscopic display device that does not require special glasses or the like, in order to obtain good stereoscopic display characteristics, the distance between the lens in the lens array unit, which is one of the light control elements, and the pixel in the display unit It is important to keep them uniform.

  The lens array unit is usually attached to a glass substrate that is a support. Since the lens array unit having such a configuration may be warped due to its own weight or the like, it is desirable to apply a relatively thick glass substrate (for example, about 2 mm to 3 mm). However, since such a thick glass substrate is expensive, it leads to an increase in cost of the lens array unit and further the stereoscopic display device. Moreover, since a thick glass substrate is required, the thickness of the entire apparatus tends to increase.

  If the lens array unit is placed in close contact with the display unit to keep the distance between the lens and the pixel uniform, if left in a high temperature environment for a long time, the lens, polarizing plate, glass substrate, etc. When the coefficients of linear expansion of lenses, polarizing plates, glass substrates, etc. are different due to the influence of temperature, the lens array unit and the display unit may be warped and separated. For this reason, the uniformity of the distance between the lens and the pixel is impaired, and desired display characteristics may not be obtained.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a display device capable of reducing costs and reducing the thickness and obtaining desired display characteristics regardless of the use environment. Is to provide.

A display device according to a first aspect of the present invention includes:
A lens array unit having a support layer, a lens array layer, and a polarizing layer sandwiched between the support layer and the lens array layer;
A display unit having a first substrate and a second substrate disposed between the first substrate and the lens array unit and having pixels arranged in a matrix;
With
The support layer of the lens array unit is bonded to the display unit.

A display device according to a second aspect of the present invention provides:
A lens array unit comprising: a polarizing plate having a polarizing layer sandwiched between a pair of supporting layers; and a lens array layer supported by one supporting layer constituting the polarizing plate;
A display unit having a first substrate and a second substrate disposed between the first substrate and the lens array unit and having pixels arranged in a matrix;
With
The other support layer constituting the polarizing plate is bonded to the display unit.

  According to the present invention, it is possible to provide a display device capable of reducing the cost and reducing the thickness and obtaining desired display characteristics regardless of the use environment.

  A display device according to an embodiment of the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, the display device includes a display unit 10 and a lens array unit 20 that is a light beam control element. The display unit 10 has a structure in which a pair of substrates, that is, a first substrate 11 and a second substrate 12 are bonded together. The second substrate 12 is disposed between the first substrate 11 and the lens array unit 20.

  The display unit 10 includes various display panels such as a liquid crystal display panel, a plasma display panel, an organic electroluminescence (EL) display panel, and a field emission display panel, and the type is not particularly limited. In this embodiment, an example in which the display unit 10 includes a liquid crystal display panel LPN will be described.

  2 and 3, the liquid crystal display panel LPN has a structure in which a liquid crystal layer 13 is held between a pair of substrates, that is, an array substrate (first substrate) 11 and a counter substrate (second substrate) 12. Is displayed. This display area DA is composed of a plurality of pixels PX arranged in a matrix.

  The array substrate 11 is formed using a light-transmitting insulating substrate 11A such as a glass substrate. The array substrate 11 includes a wiring portion that supplies a drive signal to each pixel PX on the insulating substrate 11A. That is, the array substrate 11 has a plurality of scanning lines Y (Y1 to Ym) and a plurality of auxiliary capacitance lines C (C1 to Cm) arranged in the row direction of the pixels PX as a wiring portion, and the column direction of the pixels PX. A plurality of signal lines X (X1 to Xn) arranged along the switching line SW, switching elements SW arranged for each pixel PX, and the like. Furthermore, the array substrate 11 includes pixel electrodes PE connected to the respective switching elements SW. Each of the scanning lines Y is connected to a gate driver YD that supplies a driving signal (scanning signal). Each of the signal lines X is connected to a source driver XD that supplies a drive signal (video signal).

  Each switching element SW is composed of, for example, a thin film transistor. The switching element SW is disposed at the intersection of the scanning line Y and the signal line X corresponding to each pixel PX. The gate of the switching element SW is connected to the corresponding scanning line Y (or formed integrally with the scanning line Y). The source of the switching element SW is connected to the corresponding signal line X (or formed integrally with the signal line X). The drain of the switching element SW is electrically connected to the pixel electrode PE.

  Each pixel electrode PE is disposed on the insulating film IL covering the switching element SW, and is electrically connected to the drain of the switching element SW through a contact hole formed in the insulating film IL.

  In the transmissive liquid crystal display panel LPN that selectively transmits the backlight emitted from the backlight unit and displays an image, the pixel electrode PE is made of indium tin oxide (ITO), indium zinc, It is formed of a light-transmitting conductive material such as oxide (IZO).

  Each pixel electrode PE in the reflective liquid crystal display panel LPN that selectively reflects external light (including front light emitted from the front light unit) incident from the counter substrate 12 side to display an image. Is formed of a light-reflective conductive material such as aluminum (Al).

  The surface of such an array substrate 11 is covered with a first alignment film AL1 for controlling the alignment of liquid crystal molecules contained in the liquid crystal layer 13.

  The common electrode CE for applying a voltage to the liquid crystal layer 13 due to a potential difference with the pixel electrode PE may be provided on the array substrate 11 or may be provided on the counter substrate 12. That is, in the horizontal electric field mode mainly using the horizontal electric field (electric field substantially parallel to the main surface of the substrate), the array substrate 11 has the common electrode CE that is electrically insulated from the pixel electrode PE and opposed to the pixel electrode PE. I have. In the vertical electric field mode mainly using the vertical electric field (electric field substantially perpendicular to the main surface of the substrate), the counter substrate 12 includes a common electrode CE that opposes the pixel electrode PE through the liquid crystal layer 13. Such a common electrode CE is formed of a light-transmitting conductive material such as ITO or IZO.

  In the example illustrated in FIG. 3, the counter substrate 12 is formed using an insulating substrate 12 </ b> A having light transmissivity, such as a glass substrate. The counter substrate 12 includes a common electrode CE and the like on the insulating substrate 12A.

  The surface of the counter substrate 12 is covered with a second alignment film AL2 for controlling the alignment of liquid crystal molecules contained in the liquid crystal layer 13.

  The array substrate 11 and the counter substrate 12 are bonded to each other with a sealing material (not shown) in a state where the pixel electrode PE and the common electrode CE are opposed to each other. A spacer (not shown) (for example, a columnar spacer formed integrally with one substrate) is interposed between the array substrate 11 and the counter substrate 12, and a predetermined cell gap is formed between the substrates.

  The liquid crystal layer 13 is formed of a liquid crystal composition sealed in the cell gap between the array substrate 11 and the counter substrate 12. In this embodiment, the liquid crystal mode is not particularly limited, and a mode that mainly uses a vertical electric field such as a TN (Twisted Nematic) mode, an OCB (Optically Compensated Bend) mode, a VA (Vertical Aligned) mode, or an IPS (In) A mode mainly using a lateral electric field such as a -plane switching (FPS) mode and an FFS (Fringe Field Switching) mode is applicable.

  In a color display type liquid crystal display device, the liquid crystal display panel LPN has a plurality of types of pixels PX, for example, a red pixel that displays red (R), a green pixel that displays green (G), and a blue that displays blue (B). Has pixels. That is, the red pixel includes a red color filter that transmits light having a red main wavelength. The green pixel includes a green color filter that transmits light having a green dominant wavelength. The blue pixel includes a blue color filter that transmits light having a blue main wavelength. These color filters are arranged on the main surface of the array substrate 11 or the counter substrate 12.

  Each pixel PX has a liquid crystal capacitor CLC between the pixel electrode PE and the common electrode CE.

The plurality of auxiliary capacitance lines C (C1 to Cm) are capacitively coupled to the pixel electrodes PE in the corresponding rows, respectively, to form the auxiliary capacitance Cs.

  In a configuration in which the display unit 10 includes a transmissive liquid crystal display panel LPN, the display unit 10 includes a backlight unit BL as shown in FIG. 3, and further corresponds to the display area DA as shown in FIG. The first optical element OD1 disposed on the outer surface of the array substrate 11 and the second optical element OD2 disposed on the outer surface of the counter substrate 12 are configured. Each of the first optical element OD1 and the second optical element OD2 includes a polarizing plate on the outer surface side. The absorption axis of the polarizing plate included in the first optical element OD1 is orthogonal to or parallel to the absorption axis of the polarizing plate included in the second optical element OD2.

  Note that the first optical element OD1 and the second optical element OD2 may include a retardation plate as necessary. The phase difference plate imparts a phase difference to transmitted light. For example, a retardation plate that gives a retardation to light transmitted through the retardation plate in the normal direction has a refractive index anisotropy equivalent to A plate (nx> ny≈nz or nz≈nx> ny), and typical examples include a quarter-wave plate and a half-wave plate. In addition, as a phase difference plate that gives a phase difference to light transmitted through the phase difference plate in an oblique direction inclined with respect to the normal line, one having a refractive index anisotropy equivalent to the C plate (nx≈ny ≠) nz). Some biaxial retardation plates have refractive index anisotropy of nx> ny> nz.

  Each of the first optical element OD1 and the second optical element OD2 may include two or more wavelength plates.

  As shown in FIG. 1, the lens array unit 20 includes a lens array layer 201.

  As shown in FIGS. 4 and 5, the lens array layer 201 is composed of a plurality of cylindrical lenses arranged in one direction. Here, for the sake of convenience, the direction parallel to the direction in which the scanning lines extend is X, the direction parallel to the direction in which the signal lines extend is Y, and the normal direction of the XY plane (the thickness direction of the display unit 10). ) Is Z, in the example shown in FIG. 4, each cylindrical lens has a shape in which a generatrix of its cylindrical surface extends in the Y direction, and a plurality of cylindrical lenses are arranged in the X direction. In the example shown in FIG. 5, each cylindrical lens has a shape in which the generatrix of the cylindrical surface is inclined with respect to the Y direction, and a plurality of cylindrical lenses are arranged in the X direction.

  In the lens array layer 201, the horizontal pitch Ps of the cylindrical lenses is a pitch in a direction that coincides with the row direction (that is, the X direction) in the display area DA of the display unit 10. The lens array layer 201 is formed over at least a region facing the display area DA when the lens array unit 20 is disposed facing the display unit 10. That is, the area where the lens array layer 201 is formed is set to be equal to or greater than the display area DA.

  The thickness of the lens array layer 201 (that is, the thickness from the surface of the substrate to the top portion of the lens) is, for example, about 0.05 mm to 0.5 mm, and the digging amount between the lenses is, for example, 0.05 mm. These values are about 0.1 mm, but these values can be variously changed according to the design.

  In particular, in this embodiment, the lens array unit 20 is integrated with a polarizing plate which is an optical element arranged at least on the outermost side in the second optical element OD2 arranged on the viewer side. . That is, the lens array unit 20 has a function as the polarizing plate PL constituting the second optical element OD2.

  Hereinafter, a more specific configuration example of the lens array unit 20 will be described.

<< First configuration example >>
That is, as shown in FIG. 6, the lens array unit 20 includes a lens array layer 201, a support layer 202, and a polarizing layer 203 sandwiched between the lens array layer 201 and the support layer 202. And has a function as a polarizing plate PL. The polarizing layer 203 is made of, for example, polyvinyl alcohol (PVA).

  In general, a polarizing plate has a configuration in which a polarizing layer is sandwiched between a pair of transparent sheets serving as a support layer formed of triacetyl cellulose (TAC) serving as a protective film.

  On the other hand, in the first configuration example, the lens array layer 201 also functions as one support layer that protects and supports the polarizing layer 203. In other words, the polarizing plate PL constituting the second optical element OD2 has the lens function in addition to the polarization control function of transmitted light by having the lens array layer 201. Here, the support layer is also a protective layer because it has a function of protecting the polarizing layer 203.

  Thus, since it is not necessary to use a thick glass substrate for supporting the lens array layer 201, the cost can be reduced and the entire apparatus can be made thinner. In the first configuration example, since one support layer constituting the polarizing plate PL is replaced with the lens array layer 201, the cost can be reduced and the thickness can be reduced by further reducing the number of parts. Furthermore, the process of attaching the lens array unit 20 including the lens array layer 201 to the display unit 10 with an adhesive material or the like is not necessary, and the manufacturing cost can be reduced.

  The lens array unit 20 having such a configuration has a support layer 202 bonded to a liquid crystal display panel LPN which is a display unit.

  For this reason, unlike the configuration in which the lens array unit 20 is simply brought into close contact with the liquid crystal display panel LPN, the lens array unit 201 of the lens array unit 20 and the pixels of the liquid crystal display panel LPN are not separated regardless of the use environment. Uniformity of the distance from PX is maintained and desired display characteristics can be obtained.

  In the example shown in FIG. 7, the support layer 202 of the lens array unit 20 is bonded to a retardation plate RF disposed between the counter substrate 12 constituting the liquid crystal display panel LPN. A plurality of retardation plates RF may be disposed between the support layer 202 and the counter substrate 12. That is, when the second optical element OD2 includes the polarizing plate PL and the plurality of retardation plates RF, the outermost retardation plate RF, that is, the retardation plate RF separated from the counter substrate 12 is the support layer 202, the adhesive, and the like. Is glued through. That is, the lens array unit 20 includes a part of the second optical element OD2.

  In the example shown in FIG. 8, the support layer 202 is directly bonded to the counter substrate 12. That is, the support layer 202 is bonded to the insulating substrate 12A constituting the counter substrate 12 via an adhesive or the like. That is, the lens array unit 20 includes the entire second optical element OD2. Such an example is applicable to a configuration in which the second optical element OD2 does not require a retardation plate.

  Further, the example shown in FIG. 8 is applicable when the support layer 202 is a retardation plate even if the second optical element OD2 has a configuration that requires a retardation plate. In this case, since one support layer constituting the polarizing plate PL is replaced with the lens array layer 201 and the other supporting layer 202 constituting the polarizing plate PL is replaced with the phase difference plate RF, the cost can be further reduced by reducing the number of parts. Further, the thickness can be reduced.

  The material for the support layer 202 that also serves as the phase difference plate RF does not exclude TAC, but is preferably formed of either norbornene resin or cycloolefin resin.

  The lens array layer 201 and the support layer 202 shown in FIG. 6 are desirably formed of the same material.

  That is, since the lens array layer 201 and the support layer 202 sandwiching the polarizing layer 203 are formed of the same material, both have the same linear expansion coefficient. Therefore, even if the lens array layer 201 and the support layer 202 are left in a high temperature environment for a long time, The shift can be suppressed. For this reason, the lens array unit 20 can be maintained in this state after being accurately aligned with the pixel PX of the liquid crystal display panel LPN. Therefore, good display characteristics can be obtained.

  In this case, it is desirable to match the support layer 202 with the material of the lens array layer 201. The support layer 202 is made of polymethyl methacrylate (PMMA), polycarbonate (PC), norbornene resin, which is a material capable of forming the lens array layer 201. It can be formed with a cycloolefin resin or the like.

  Such a resin lens array layer 201 has an advantage that it can be manufactured at low cost by press molding or injection molding. On the other hand, since the resin material has a relatively large linear expansion coefficient, it is easily affected by temperature changes. However, since the resin material is integrated with the second optical element OD2 and bonded to the liquid crystal display panel LPN, the horizontal pitch Ps is increased. It becomes possible to suppress fluctuations.

<< Second configuration example >>
That is, as shown in FIG. 9, the lens array unit 20 includes a lens array layer 201 and a polarizing plate 300. The polarizing plate 300 has a configuration in which a polarizing layer 303 is sandwiched between a pair of support layers 301 and 302. The lens array layer 201 is supported by one support layer 302 constituting the polarizing plate 300. The polarizing layer 303 is made of, for example, PVA.

  Also in this second configuration example, since it is not necessary to use a thick glass substrate for supporting the lens array layer 201, the cost can be reduced and the entire apparatus can be reduced in thickness.

  In the lens array unit 20 having such a configuration, the other support layer 301 constituting the polarizing plate 300 is bonded to the liquid crystal display panel LPN which is a display unit.

  For this reason, the lens array unit 20 and the liquid crystal display panel LPN are not separated from each other regardless of the use environment, and the uniformity of the distance between the lens array layer 201 of the lens array unit 20 and the pixel PX of the liquid crystal display panel LPN. Thus, desired display characteristics can be obtained.

  Also in the lens array unit 20 of the second configuration example, the other support layer 301 is a retardation plate disposed between the counter substrate 12 constituting the liquid crystal display panel LPN, as in the first configuration example. It may be bonded to the counter substrate 12 or directly to the counter substrate 12.

  Further, in the second configuration example, the lens array layer 201 of the lens array unit 20 is bonded to the support layer 302 via the adhesive layer 304 as shown in FIG. Further, as shown in FIG. 10, the lens array layer 201 may be directly molded on the support layer 302 using an ultraviolet curable resin without using an adhesive layer.

  To summarize the first and second configuration examples described above, according to the first configuration example, the lens array unit has a structure in which a polarizing layer is sandwiched between the support layer and the lens array layer. Such a lens array unit has its support layer bonded to the display unit.

  According to the second configuration example, the lens array unit has a structure in which the lens array layer is supported by one of the pair of support layers that sandwich the polarizing layer. In such a lens array unit, the other support layer is bonded to the display unit.

  In any aspect of these structural examples, a glass substrate for supporting the lens array layer becomes unnecessary. For this reason, the cost of the display device can be reduced, and the entire display device can be reduced in thickness.

Also, in any aspect of these configuration examples, the lens array unit having the lens array layer is bonded to the display unit. For this reason, unlike the configuration in which both the lens array unit and the display unit are simply brought into close contact with each other, the distance between the lens array layer of the lens array unit and the pixel of the display unit does not matter regardless of the use environment. Next, a display device capable of displaying a one-dimensional IP method or a multi-view three-dimensional image will be described as an example of the display device.

  FIG. 11 is a perspective view schematically showing a configuration of a part of the stereoscopic video display apparatus.

  The stereoscopic image display apparatus includes a display unit 10 such as a liquid crystal display panel including an element image display unit, and a lens array unit 20 that functions as a light beam control element having an optical aperture. The lens array layer 201 of the lens array unit 20 is provided so as to face the element image display unit, and performs stereoscopic display with light beams in each direction with reference to each lens principal point of the lens array layer 201.

  Here, in particular, a case is shown in which a lens array unit (lenticular sheet) 20 formed of a cylindrical lens array is arranged on the front surface of a planar element image display unit such as a liquid crystal display panel. As shown in FIG. 11, in the element image display unit, sub-pixels 31 having an aspect ratio of 3: 1 are arranged in a matrix in a straight line in the horizontal direction (X direction) and the vertical direction (Y direction), respectively. The sub-pixels 31 are arranged so that red (R), green (G), and blue (B) are alternately arranged in the row direction (X direction) and the column direction (Y direction).

  In the example shown here, the effective pixels 32 (indicated by a black frame) at the time of displaying a stereoscopic image are configured by the sub-pixels 31 in 9 columns and 3 rows. In such a structure of the display unit, since the effective pixel 32 at the time of stereoscopic video display is composed of 27 sub-pixels, if three color components are required for one parallax, a stereoscopic image / video that gives nine parallaxes in the X direction. Display is possible. The effective pixel refers to a sub-pixel group of the minimum unit that determines the resolution at the time of stereoscopic display, and the element image refers to a set of parallax component images corresponding to one lens. Therefore, in the case of a stereoscopic image display apparatus configured to use a cylindrical lens, one element image includes a large number of effective pixels arranged in the vertical direction.

  As described above, according to the present embodiment, the lens array layer sandwiches the polarizing layer with the support layer and supports the polarizing layer, while the support layer is bonded to the display unit, and the display unit is A configuration in which the lens array layer is indirectly supported is applied. As a result, the distance between the lens and the pixel PX can be kept uniform regardless of the use environment, and good display characteristics can be obtained, and the cost can be reduced and the thickness can be reduced. In addition, the member cost can be suppressed to a necessary minimum, and the manufacturing process can be simplified.

  In addition, this invention is not limited to the said embodiment itself, In the stage of implementation, it can change and implement a component within the range which does not deviate from the summary. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

  The first optical element OD1 and the second optical element OD2 constituting the display unit may have a configuration in which an optical compensation layer is added.

FIG. 1 schematically shows a configuration of a display device according to an embodiment of the present invention. FIG. 2 is a diagram schematically showing a configuration of a display unit (liquid crystal display panel) applicable to the display device shown in FIG. FIG. 3 is a diagram schematically showing a cross-sectional structure of the display unit shown in FIG. FIG. 4 is a perspective view schematically showing a configuration of a lens array unit applicable to the display device shown in FIG. FIG. 5 is a perspective view schematically showing another configuration of the lens array unit applicable to the display device shown in FIG. FIG. 6 is a cross-sectional view schematically showing a first configuration example of a lens array unit applicable to the embodiment of the present invention. FIG. 7 is a cross-sectional view showing a state where the lens array unit shown in FIG. 6 is bonded to the retardation plate of the second optical element. FIG. 8 is a cross-sectional view showing a state where the lens array unit shown in FIG. 6 is directly bonded to the display unit. FIG. 9 is a cross-sectional view schematically showing a second configuration example of the lens array unit applicable to the embodiment of the present invention. FIG. 10 is a sectional view schematically showing another form of the second configuration example of the lens array unit applicable to the embodiment of the present invention. FIG. 11 is a perspective view schematically showing a partial configuration of the stereoscopic image display apparatus according to the embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Display unit LPN ... Liquid crystal display panel DA ... Display area PX ... Pixel 11 ... First substrate (array substrate) 11A ... Insulating substrate 12 ... Second substrate (counter substrate) 12A ... Insulating substrate 13 ... Liquid crystal layer OD1 ... First Optical element OD2 ... 2nd optical element PL ... Polarizing plate RF ... Phase difference plate 20 ... Lens array unit 201 ... Lens array layer 202 ... Supporting layer 203 ... Polarizing layer 300 ... Polarizing plate 301 ... Supporting layer 302 ... Supporting layer 303 ... Polarizing Layer 304 ... Adhesive layer

Claims (12)

A lens array unit having a support layer, a lens array layer, and a polarizing layer sandwiched between the support layer and the lens array layer;
A display unit having a first substrate and a second substrate disposed between the first substrate and the lens array unit and having pixels arranged in a matrix;
With
The display device, wherein the support layer of the lens array unit is bonded to the display unit.   2. The display device according to claim 1, wherein the support layer of the lens array unit is bonded to a retardation plate arranged between the support layer and the second substrate constituting the display unit.   The display device according to claim 1, wherein the support layer of the lens array unit is directly bonded to the second substrate constituting the display unit.   The display device according to claim 3, wherein the support layer is a phase difference plate that imparts a phase difference to transmitted light.   The display device according to claim 4, wherein the support layer is formed of any one of a norbornene resin and a cycloolefin resin.   The display device according to claim 1, wherein the lens array layer and the support layer are formed of the same material. A lens array unit comprising: a polarizing plate having a polarizing layer sandwiched between a pair of supporting layers; and a lens array layer supported by one supporting layer constituting the polarizing plate;
A display unit having a first substrate and a second substrate disposed between the first substrate and the lens array unit and having pixels arranged in a matrix;
With
The other support layer constituting the polarizing plate is bonded to the display unit.   The display device according to claim 7, wherein the other support layer is bonded to a retardation plate disposed between the second support layer and the second substrate constituting the display unit.   The display device according to claim 7, wherein the other support layer is directly bonded to the second substrate constituting the display unit.   The display device according to claim 7, wherein the lens array unit is formed by adhering the lens array layer made of resin to the one support layer through an adhesive layer.   The display device according to claim 7, wherein the lens array unit is formed by directly molding the lens array layer made of resin on the one support layer.   The display device according to claim 1, wherein the display unit includes a liquid crystal display panel configured to hold a liquid crystal layer between the first substrate and the second substrate.

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