JP2008058862A - Electro-optical device, electronic apparatus, method for manufacturing electro-optical device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electro-optical device with which an adhesive layer is uniformized and its thickness is reduced while suppressing deterioration in display characteristics. <P>SOLUTION: The electro-optical device is, for example, a liquid crystal display device, and is equipped with a display panel such as a liquid crystal display panel, an adhesive layer, and the function adding member. The function adding member is, for example, a polarizing plate, a parallax barrier, a touch panel substrate, or the like. In the adhesive layer, number density of spacers in a display region to display an image is less than that in a region outside the display region. Thereby thickness of the adhesive layer is uniformized and occurrence of a gap defect is prevented, and at the same time, distribution of the spacers scarcely influences a display image and the deterioration of display characteristics is suppressed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electro-optical device suitable for displaying various information.

In recent years, technologies for reducing the weight and size of electronic devices have been developed. In mobile phones and personal digital assistants (PDAs) as well, liquid crystal display devices are used as display devices to reduce weight and size.

The liquid crystal display device mainly includes a liquid crystal display panel composed of a substrate formed of two opposing glass plates, a liquid crystal sandwiched between the two substrates, and an LED (Light Emitting Diode).
And a lighting device composed of a light guide plate having a light source on the end face thereof. In the liquid crystal display panel, for example, polarizing plates are bonded to the upper and lower surfaces of two substrates by an adhesive layer made of an adhesive material or the like.

In recent years, as the two substrates of the liquid crystal display panel are made thinner,
The plate thickness is getting thinner. Therefore, a gap defect is likely to occur in the liquid crystal display panel due to the pressure applied when the polarizing plate is bonded to the liquid crystal display panel. For example, the thickness of the adhesive layer may be non-uniform depending on the position where pressure is applied when the polarizing plate is bonded to the liquid crystal display panel. In this case, a Newton ring is generated on the display screen centering on a position where a strong pressure is applied and the thickness of the adhesive layer is reduced. Such gap defects are becoming more noticeable with the recent increase in contrast of liquid crystal display panels. The following Patent Document 1 describes a technique for suppressing the occurrence of Newton's ring by adhering a touch panel to a surface support covering a liquid crystal display panel with a tape-like acrylic adhesive.

JP 7-105781 A

However, in the invention described in Patent Document 1, since the tape-like adhesive material is used, the thickness of the adhesive layer is considered to be larger than 50 [μm]. However, in recent years, the liquid crystal display panel has been made thinner. Accordingly, the thickness of the adhesive layer is also desired to be 50 [μm] or less.

The present invention has been made in view of the above points, and an object of the present invention is to provide an electro-optical device capable of making the adhesive layer uniform and thin while suppressing deterioration of display characteristics. To do.

In one aspect of the present invention, an electro-optical device includes a display panel, an adhesive layer provided on an outer surface of the display panel, having a plurality of spacers, and a function addition member bonded to the display panel by the adhesive layer. In the adhesive layer, the number density of spacers in a display area where an image is displayed is smaller than the number density of spacers in an area outside the display area.

The electro-optical device is a liquid crystal display device, for example, and includes a display panel such as a liquid crystal display panel, an adhesive layer, and a function addition member. Examples of the function adding member include a polarizing plate, a parallax barrier, and a touch panel substrate. In the adhesive layer, the number density of spacers in a display area where an image is displayed is smaller than the number density of spacers in an area outside the display area. Thereby, the thickness of the adhesive layer can be made uniform, the occurrence of gap defects can be prevented, and the influence on the display image due to the arrangement of the spacers can be reduced,
Deterioration of display characteristics can be suppressed.

In another aspect of the electro-optical device, the spacer is disposed only in a region outside the display region. As a result, the thickness of the adhesive layer can be made uniform, the occurrence of gap defects can be prevented, the influence of the spacer arrangement on the display image can be eliminated, and the display characteristics can be prevented from deteriorating. Can do.

In another aspect of the electro-optical device, the spacer has a size in a direction from the display panel toward the function addition member of 50 [μm] or less. Thereby, the thickness of the adhesive layer can also be reduced to 50 [μm] or less.

In another aspect of the electro-optical device, the spacer has a fiber shape. Thereby, compared with the case where a spherical spacer is used, cost reduction can be achieved.

In another aspect of the present invention, an electronic apparatus including the above-described electro-optical device in a display portion can be configured.

In another aspect of the present invention, a method for manufacturing an electro-optical device includes a display panel manufacturing process for manufacturing a display panel, and a display on which an image is displayed on one surface of the function addition member or the display panel. A spacer-containing adhesive application process for applying an adhesive mixed with a plurality of spacers to an area outside the area, and a spacerless adhesive application process for applying an adhesive without a spacer mixed in the display area And a function addition member adhering step for adhering the function addition member to the display panel. This also makes it possible to make the thickness of the adhesive layer uniform, prevent the occurrence of gap defects, and prevent the display characteristics from deteriorating.

In a preferred embodiment of the present invention, a method of manufacturing an electro-optical device includes a display panel manufacturing process for manufacturing a display panel, and a display on which an image is displayed on the surface of either the function addition member or the display panel. A spacer arrangement step of dispersing and arranging a plurality of spacers in a region outside the region; a spacer position fixing step of fixing the positions of the arranged spacers; and either the function addition member or the display panel An adhesive application step of applying an adhesive on one surface; and a function addition member adhesion step of adhering the function addition member to the display panel.

In a preferred embodiment of the present invention, a method for manufacturing an electro-optical device includes a display panel manufacturing process for manufacturing a display panel, and an image is displayed on one surface of either the function adding member or the display panel. A spacer-containing adhesive application step of applying an adhesive mixed with a plurality of spacers in a frame shape surrounding the display region, a function addition member adhesion step of adhering the function addition member to the display panel, A spacerless adhesive enclosing step of enclosing the adhesive not mixed with the spacer in an inner region surrounded by the adhesive mixed with the spacer.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In the following embodiments, the present invention is applied to a liquid crystal display device.

[Liquid Crystal Display]
FIG. 1 is a cross-sectional view of the liquid crystal display device 100. The liquid crystal display device 100 mainly includes the light source unit 1.
5 and a light guide plate 11 and a liquid crystal display panel 20. The liquid crystal display panel 20 is disposed to face the upper surface of the light guide plate 11. A reflection sheet 14 is disposed on the lower surface of the light guide plate 11. The light source unit 15 includes a plurality of LEDs 16 that are point light sources.

The light L emitted from each LED 16 enters the light guide plate 11, changes direction by repeating reflection on the upper and lower surfaces of the light guide plate 11, and exits from the upper surface to the outside. The emitted light L travels toward the liquid crystal display panel 20.

The liquid crystal display panel 20 has a display area substantially the same as the light emission area of the light guide plate 11. The liquid crystal display panel 20 is configured by bonding substrates 1 and 2 made of glass or the like through a sealing material 3 to form a cell structure and enclosing a liquid crystal 4 therein. The liquid crystal display panel 20 includes a substrate 1,
The polarizing plate 5 is provided on the outer surface of each of the two. Here, in the liquid crystal display panel 20, an area where an image on the display screen is displayed is indicated as a display area V.

For example, a diffusion sheet 12 and a prism sheet 13 are provided as optical sheets between the illumination device 10 and the liquid crystal display panel 20. The diffusion sheet 12 has a role of diffusing the light L emitted from the light guide plate 11 in all directions. The prism sheet 13 has a role of condensing the light L on the liquid crystal display panel 20 and has a shape in which a prism shape having a substantially triangular cross section is extended in one side direction (direction of a side perpendicular to the cross section). . The light L emitted from the light guide plate 11 passes through these optical sheets and then illuminates by passing through the liquid crystal display panel 20.

FIG. 2 is an enlarged cross-sectional view of a region 30 surrounded by a wavy line of the liquid crystal display device 100 shown in FIG. FIG. 3 is a plan view of the liquid crystal display device 100. The liquid crystal display device 100 shown in FIG.
FIG. 4 is a cross-sectional view taken along a cutting line AA ′ in the plan view of the liquid crystal display device 100 shown in FIG. 3. As shown in FIG. 2, an adhesive layer 6 is provided between the polarizing plate 5 and the substrate 2. The polarizing plate 5 is bonded to the substrate 2 by the adhesive layer 6.

The adhesive layer 6 includes a plurality of spacers 7 and an adhesive 8. The plurality of spacers 7 have a spherical shape. As the spacer 7, for example, a resin ball or a glass ball is used. The plurality of spacers 7 having the same size are used, and are arranged only in a region outside the display region V on the surface of the substrate 2 or the polarizing plate 5 as shown in FIG.
Specifically, the plurality of spacers 7 are arranged in a frame shape surrounding the display region V. The plurality of spacers 7 have a role of constantly maintaining the distance between the polarizing plate 5 and the substrate 2 at any position. As the adhesive 8, for example, a photocurable liquid resin that is cured when irradiated with visible light, ultraviolet light, or the like is used. The adhesive 8 is applied on the surface of the substrate 2 or the polarizing plate 5, and the adhesive layer 6 is filled in a space other than the portion where the plurality of spacers 7 are present. Therefore, the spacer 7 does not exist in the display region V on the surface of the substrate 2 or the polarizing plate 5, and only the adhesive 8 is applied.

Note that the adhesive 8 is not limited to a photo-curable resin, and instead, a resin that is cured by applying heat or a resin that is cured by applying moisture may be used.

As can be seen from the above, the polarizing plate 5 is bonded to the substrate 2 by the adhesive 8 while maintaining a constant distance by the plurality of spacers 7. By doing so, the thickness of the adhesive layer 6 can be made uniform, and the occurrence of gap defects can be prevented. In the liquid crystal display device 100 according to the present embodiment, the diameter of the spacer 7 is 50 [μm] or less.
By doing in this way, the thickness of the contact bonding layer 6 can be 50 [micrometers] or less.

In the liquid crystal display device 100 according to the present embodiment, the plurality of spacers 7 are the substrate 2 or the polarizing plate 5.
It is arranged only in the area outside the display area V on the surface of the display area V and is not arranged in the display area V. This is because, when the spacer 7 is arranged in the display region V, the light L causes the shape of the spacer 7 to appear on the display screen. That is, in the liquid crystal display device 100 according to the present embodiment, since the spacer 7 is not disposed in the display region V, the spacer 7 is uniformly disposed on the entire surface including the display region V of the substrate 2 or the polarizing plate 5. Compare with spacer 7
It is possible to eliminate the influence on the display image by the arrangement of the display, and it is possible to prevent the display characteristics from deteriorating.

(Manufacturing method of liquid crystal display device)
Next, a first manufacturing method of the liquid crystal display device 100 according to the present embodiment will be described with reference to the flowchart shown in FIG. FIG. 4 is a flowchart showing a first manufacturing method of the liquid crystal display device 100 according to the present embodiment. FIG. 5 is a schematic diagram of each manufacturing process in the first manufacturing method of the liquid crystal display device 100 according to the present embodiment.

First, as a display panel manufacturing process, after the two substrates 1 and 2 are bonded together, liquid crystal is sealed between the two bonded substrates 1 and 2 to manufacture the liquid crystal display panel 20 (
Step P11).

Next, as a spacer-containing adhesive application step, as shown in FIG. 5A, the adhesive 8 in which the spacer 7 is mixed in advance is applied to the region outside the display region V on the surface of the polarizing plate 5. (Step P12). Specifically, after the display area V on the surface of the polarizing plate 5 is covered with a resist, an adhesive 8 in which spacers 7 are mixed in advance is applied onto the surface of the polarizing plate 5 by a dispenser or the like. As a result, the spacers 7 are arranged in a region outside the display region V. Then, after the resist is removed, as shown in FIG. 5 (b), the adhesive 8 not mixed with the spacer 7 is applied in the display region V on the surface of the polarizing plate 5 as a spacer-less adhesive application process. (Process P13).

Next, as a function adding member bonding step, as shown in FIG. 5C, the substrate 2 and the polarizing plate 5 of the liquid crystal display panel 20 are bonded and pressed, and then the adhesive 8 is cured. (Step P14). In FIG. 5C, the substrate 2 of the liquid crystal display panel 20 is shown for explanation.
Only shown. Further, after the substrate 1 and the polarizing plate 5 of the liquid crystal display panel 20 are bonded together in the same manner, other accessory parts such as the illumination device 10 are attached, whereby the liquid crystal display device 100 is completed (process P15).

In the first manufacturing method of the liquid crystal display device 100 according to the present embodiment, by providing a plurality of spacers 7 between the polarizing plate 5 and the substrate 2, the distance between the polarizing plate 5 and the substrate 2 is always constant. It can hold | maintain and can prevent that the thickness of the contact bonding layer 6 becomes non-uniform | heterogenous by pressurization. In the first manufacturing method of the liquid crystal display device 100, the spacer 7 is not disposed in the display region V on the surface of the polarizing plate 5 by applying the adhesive 8 in which the spacer 7 is not mixed. Therefore, it is possible to prevent display characteristics from deteriorating.

Next, a second manufacturing method of the liquid crystal display device 100 according to the present embodiment will be described with reference to the flowchart shown in FIG. FIG. 6 is a flowchart showing a second manufacturing method of the liquid crystal display device 100 according to the present embodiment. 7 and 8 show the liquid crystal display device 1 according to the present embodiment.
The schematic diagram of each manufacturing process in the 2nd manufacturing method of 00 is shown.

First, as a display panel manufacturing process, after the two substrates 1 and 2 are bonded together, liquid crystal is sealed between the two bonded substrates 1 and 2 to manufacture the liquid crystal display panel 20 (
Step P21).

Next, as a spacer arrangement step, as shown in FIG. 7A, the spacer 7 is arranged in a region outside the display region V on the surface of the polarizing plate 5 (step P22). Specifically, after the display area V on the surface of the polarizing plate 5 is covered with a resist, a plurality of spacers 7 are scattered on the surface of the polarizing plate 5. As a result, the spacers 7 are arranged in a region outside the display region V. Here, as the spacer 7, for example, a thermoplastic resin ball is used. After the spacer 7 is arranged on the polarizing plate 5, the resist is removed, and as a spacer position fixing step, FIG.
), By heating the polarizing plate 5, the spacer 7 and the polarizing plate 5 are welded, and the spacer 7 is fixed (process P23).

And as an adhesive application process, as shown in FIG. 8A, after the adhesive 8 is applied to the polarizing plate 5 using a dispenser or the like (process P24), as a function addition member adhesion process,
As shown in FIG. 8B, the substrate 2 and the polarizing plate 5 of the liquid crystal display panel 20 are bonded and pressurized, and then bonded by the adhesive 8 being cured (process P25). Note that FIG.
For the sake of explanation, only the substrate 2 of the liquid crystal display panel 20 is illustrated. Further, after the substrate 1 and the polarizing plate 5 of the liquid crystal display panel 20 are bonded together in the same manner, other accessory parts such as the lighting device 10 are attached, whereby the liquid crystal display device 100 is completed (process P26).

Also in the second manufacturing method of the liquid crystal display device according to this embodiment, by providing a plurality of spacers 7 between the polarizing plate 5 and the substrate 2, the distance between the polarizing plate 5 and the substrate 2 is always constant. It can hold | maintain and can prevent that the thickness of the contact bonding layer 6 becomes non-uniform | heterogenous by pressurization. Also in the second manufacturing method of the liquid crystal display device 100, since the spacers 7 are not disposed in the display region V on the surface of the polarizing plate 5, it is possible to prevent display characteristics from deteriorating.

In the first and second manufacturing methods described above, the adhesive 8 is applied on the surface of the polarizing plate 5. However, the present invention is not limited to this. Instead, the substrate of the liquid crystal display panel 20 is used. It may be applied on the surface of 2. In the first and second manufacturing methods, the liquid crystal display panel 2
After manufacturing 0, the polarizing plate 5 is adhered, but the present invention is not limited to this.
Instead, using the bonding method described in each of the first and second manufacturing methods, the polarizing plate 5 is bonded to the substrate 2 in advance, and the polarizing plate 5 is bonded to the substrate 1 in advance, and then the substrate 1 and the substrate The liquid crystal display device 100 may be manufactured by pasting 2 and enclosing the liquid crystal.

Next, the 3rd manufacturing method of the liquid crystal display device 100 which concerns on this embodiment is demonstrated using FIG. FIG. 9 is a flowchart showing a third manufacturing method of the liquid crystal display device 100.
FIG. 10 is a schematic view of a manufacturing process in the third manufacturing method of the liquid crystal display device 100 according to the present embodiment.

In the third manufacturing method, after the liquid crystal display panel 20 is manufactured as the display panel manufacturing process (process P31), the adhesive 8 in which the spacers 7 are mixed in advance is used as the polarizing plate 5 as the spacer-containing adhesive application process. It is applied in a frame shape surrounding the display area V on the surface (process P32). And as a function addition member adhesion process, the polarizing plate 5 and the board | substrate 2 are the spacer 7 apply | coated to the said frame shape.
Is bonded by the adhesive 8 mixed in advance (process P33). Next, as shown in FIG. 10, as an adhesive sealing process without a spacer, an injection port is provided in a part of the adhesive 8 in which the spacer 7 applied in the frame shape is mixed in advance. Spacer 7 applied in frame shape
In the inner region surrounded by the adhesive 8 mixed in advance, that is, in the display region V in this embodiment, the adhesive 8 in which the spacer 7 is not mixed is sealed (step P34). And the liquid crystal display device 100 is completed by attaching other attachment components, such as the illuminating device 10, (process P35).

Also by this method, by providing a plurality of spacers 7 between the polarizing plate 5 and the substrate 2,
The distance between the polarizing plate 5 and the substrate 2 is always kept constant, and it is possible to prevent the thickness of the adhesive layer 6 from becoming non-uniform due to pressurization. In addition, since the spacer 7 is not disposed in the display region V on the surface of the polarizing plate 5, it is possible to prevent display characteristics from being deteriorated.

[Modification]
Next, a first modification of the liquid crystal display device 100 according to this embodiment will be described. FIG. 11 is a plan view of the liquid crystal display device 100 according to the first modification.

In the liquid crystal display device 100 according to the first modified example, unlike the above-described embodiment, the spacer 7 is arranged in a part of the region outside the display region V instead of arranging the spacer 7 in a frame shape surrounding the display region V. 7 is arranged. For example, in the present modification, as shown in FIG. 11, the spacer 7 is disposed only in the region 17 of the outer side of the four corners of the display region V. Even in this manner, the thickness of the adhesive layer 6 can be made uniform as in the above-described embodiment, the occurrence of gap defects can be prevented, and the influence on the display image due to the arrangement of the spacers 7 can be eliminated, and display characteristics can be obtained. Can be prevented.
Further, in the liquid crystal display device 100 according to the first modified example, the number of spacers to be arranged can be reduced as compared with the liquid crystal display device 100 according to the above-described embodiment.

Note that the liquid crystal display device 100 according to the first modification can also be manufactured using the first manufacturing method and the second manufacturing method described in the above embodiment.

For example, when the first manufacturing method is used, a spacer-containing adhesive application step (step P12).
), The adhesive 8 in which the spacers 7 are mixed in advance is applied to the polarizing plate by a dispenser or the like after the region other than the region 17 of the four corners of the display region V on the surface of the polarizing plate 5 is covered with a resist. 5 is applied on the surface. As a result, the region 1 of the outer part of the four corners of the display region V
The spacer 7 is disposed at 7. After the resist is removed, in the adhesive application process without spacer (process P13), the adhesive 8 in which the spacer 7 is not mixed is applied to a region other than the region 17 in the four corners of the display region V. . Other steps are the same as those of the first manufacturing method described in the above embodiment.

In the case of using the second manufacturing method, in the spacer arrangement step (step P22), after the region other than the region 17 at the outer side of the four corners of the display region V on the surface of the polarizing plate 5 is covered with a resist, A plurality of spacers 7 are dispersed on the surface of the polarizing plate 5. As a result, the spacer 7 is arranged in the region 17 in the outer side of the four corners of the display region V. Other steps are the same as those of the second manufacturing method described in the above embodiment.

In each of the above-described embodiments, the spacer 7 is not disposed in the display region V. However, the present invention is not limited to this. That is, even if the spacers 7 are arranged in the display area V, if the number density of the spacers 7 in the display area V is smaller than the number density of the spacers 7 in the area outside the display area V, the display area Compared to the case where the spacers 7 are uniformly arranged in the entire region including V, the influence on the display image due to the arrangement of the spacers 7 can be reduced.
Deterioration of display characteristics can be suppressed.

Next, a second modification of the liquid crystal display device 100 according to the present embodiment will be described. FIG. 12 is a plan view of the liquid crystal display device 100 according to the second modification.

Unlike the above-described embodiment, the liquid crystal display device 100 according to the second modification does not use a spherical material such as a resin ball as the spacer 7, but instead uses a glass fiber or the like as shown in FIG. The fiber shape is used. Also by this, the polarizing plate 5 is adhered by the adhesive 8 while maintaining a certain distance by the substrate 2 and the plurality of spacers 7, and the thickness of the adhesive layer 6 can be made uniform. The occurrence of gap defects can be prevented.

Moreover, the thickness of the contact bonding layer 6 can be 50 [micrometers] or less by making the magnitude | size of the cross section of the fiber-shaped spacer 7 into 50 [micrometers] or less. Fiber-shaped spacer
Since it is easy to form compared with the spherical spacer, the liquid crystal display device 100 according to the modified example can be reduced in cost as compared with the liquid crystal display device 100 according to the above-described embodiment. Furthermore, since the spacer 7 is not arranged in the display area V as in the above-described embodiment, the influence on the display image due to the arrangement of the spacer 7 can be eliminated, and the deterioration of display characteristics can be prevented.

Furthermore, the spacer 7 is not limited to the above-mentioned spherical and fiber shape, and various shapes can be used instead. In any shape of the spacer 7, the thickness of the adhesive layer 6 can be reduced to 50 [μm] or less by setting the size in the direction from the substrate 2 to the polarizing plate 5 to 50 [μm] or less.

Further, in the above-described embodiment, the case where the liquid crystal display panel and the polarizing plate are bonded is described.
For example, it goes without saying that the present invention can also be applied to a case where a parallax barrier for performing stereoscopic display, a touch panel substrate of a touch panel, or the like is bonded to a liquid crystal display panel. Moreover,
It goes without saying that the present invention can be applied not only to a liquid crystal display panel but also to a case where a function addition member is bonded to another display panel such as a plasma display panel instead.

[Electronics]
Next, specific examples of electronic devices to which the liquid crystal display device 100 according to the present invention can be applied are shown in FIG.
Will be described with reference to FIG.

First, an example in which the liquid crystal display device 100 according to the present invention is applied to a display unit of a portable personal computer (so-called notebook personal computer) will be described. FIG. 13A is a perspective view showing the configuration of this personal computer. As shown in the figure, the personal computer 710 includes a main body 712 having a keyboard 711 and a display 713 to which the liquid crystal display panel according to the present invention is applied.

Next, an example in which the liquid crystal display device 100 according to the present invention is applied to a display unit of a mobile phone will be described. FIG. 13B is a perspective view showing the configuration of this mobile phone. As shown in the figure, the mobile phone 720 includes a plurality of operation buttons 721, an earpiece 722, a mouthpiece 72.
3 and a display unit 724 to which the liquid crystal display device 100 according to the present invention is applied.

As an electronic apparatus to which the liquid crystal display device 100 according to the present invention can be applied, FIG.
In addition to the personal computer shown in FIG. 13 and the cellular phone shown in FIG. 13B, a liquid crystal television, a viewfinder type / monitor direct-view type video tape recorder, a car navigation device, a pager, an electronic notebook, a calculator, a word processor, a work Station, video phone,
A POS terminal, a digital still camera, etc. are mentioned.

It is sectional drawing of the liquid crystal display device which concerns on this embodiment. It is an expanded sectional view of the liquid crystal display device concerning this embodiment. It is a top view of the liquid crystal display device concerning this embodiment. It is a flowchart which shows the 1st manufacturing method of a liquid crystal display device. It is a schematic diagram which shows each manufacturing process of a 1st manufacturing method. It is a flowchart which shows the 2nd manufacturing method of a liquid crystal display device. It is a schematic diagram which shows each manufacturing process of a 2nd manufacturing method. It is a schematic diagram which shows each manufacturing process of a 2nd manufacturing method. It is a flowchart which shows the 3rd manufacturing process of a liquid crystal display device. It is a schematic diagram which shows the manufacturing process of a 3rd manufacturing method. It is a top view of the liquid crystal display device which concerns on a 1st modification. It is a top view of the liquid crystal display device which concerns on a 2nd modification. It is a figure which shows the example of the electronic device to which the liquid crystal display device of this invention is applied.

Explanation of symbols

1, 2 substrate, 5 polarizing plate, 6 adhesive layer, 7 spacer, 8 adhesive, 10
Illumination device, 20 liquid crystal display panel, 100 liquid crystal display device

Claims (8)

A display panel;
An adhesive layer provided on an outer surface of the display panel and having a plurality of spacers;
A function adding member bonded to the display panel by the adhesive layer,
The electro-optical device, wherein the adhesive layer has a spacer number density in a display region where an image is displayed smaller than a spacer number density in a region outside the display region. 2. The electro-optical device according to claim 1, wherein the adhesive layer has the spacer disposed only in a region outside the display region. The spacer has a size in the direction from the display panel toward the function addition member of 50 [
The electro-optical device according to claim 1, wherein the electro-optical device is equal to or less than μm]. The shape of the spacer is a fiber shape.
The electro-optical device according to any one of the above. An electronic apparatus comprising the electro-optical device according to claim 1 in a display unit. A display panel manufacturing process for manufacturing a display panel;
On the surface of either the function addition member or the display panel, a spacer-containing adhesive application step for applying an adhesive mixed with a plurality of spacers to a region outside a display region where an image is displayed;
In the display area, a spacer-less adhesive application step of applying an adhesive in which no spacer is mixed,
And a function adding member bonding step of bonding the function adding member to the display panel. A display panel manufacturing process for manufacturing a display panel;
A spacer arrangement step of dispersing and arranging a plurality of spacers on a region outside the display region where an image is displayed on the surface of either the function addition member or the display panel;
A spacer position fixing step of fixing the positions of the plurality of spacers arranged;
An adhesive application step of applying an adhesive on the surface of either the function addition member or the display panel;
And a function adding member bonding step of bonding the function adding member to the display panel. A display panel manufacturing process for manufacturing a display panel;
A spacer-containing adhesive application step for applying an adhesive mixed with a plurality of spacers in a frame shape surrounding a display area on which an image is displayed on the surface of either the function addition member or the display panel; ,
A function addition member bonding step for bonding the function addition member to the display panel;
An electro-optical device manufacturing method comprising: a spacer-less adhesive sealing step for sealing an adhesive in which a spacer is not mixed in an inner region surrounded by the adhesive in which the plurality of spacers are mixed. Method.

Images