WO2010055565A1

WO2010055565A1 - Optical filter and display device

Info

Publication number: WO2010055565A1
Application number: PCT/JP2008/070677
Authority: WO
Inventors: 隆介福島; 利治大石; 高▲英▼ 藤本; 寛晃吉松
Original assignee: パイオニア株式会社
Priority date: 2008-11-13
Filing date: 2008-11-13
Publication date: 2010-05-20

Abstract

A body antireflective layer (312) is provided on a display surface (311) of a display device body (300). A first antireflective layer (430) and a second antireflective layer (440) are provided on both surfaces of an optical filter (400) disposed opposite the display surface (311) with a predetermined space therebetween. A screen frame layer (420) having light blocking effect is provided in a peripheral region corresponding to the edge of the display device body (300) between a light transmissive substrate (410) and the first antireflective layer (430) on the display surface side of the optical filter (400). The screen frame layer (420) is formed to have gradation such that the light transmissive property increases gradually toward the inner periphery. The boundary between a display region and the screen frame layer (420) becomes difficult to view, so the whole surface of the optical filter (400) can be recognized as the same plane without any boundary by users, and a visual sense of unity can be given to the users.

Description

Optical filter and display device

The present invention relates to an optical filter having an antireflection layer and a display device including the optical filter.

2. Description of the Related Art Conventionally, a display device in which an optical filter having an antireflection layer is provided on the display surface side of a plasma display panel (PDP: Plasma Display Panel) or a liquid crystal panel is known (for example, Patent Document 1 or Patent Reference 2).

The thing of patent document 1 is equipped with PDP which affixed the optical filter which has an electromagnetic wave shielding layer, an infrared rays absorption layer, and an antireflection layer on the display surface with the adhesion layer.
In addition, an optical filter plate formed of tempered glass or the like having antireflection layers provided on both sides is disposed on the display surface side of the PDP so as to face each other with a predetermined gap between the PDP and the optical filter plate. Double reflection due to double reflection of outside light is prevented.

The thing of patent document 2 has accommodated PDP which affixed the antireflection film on the display surface in the housing | casing which has the decorative frame which faces the display area which can visually recognize the displayed image outside. That is, it is set as the structure covered with a decorative frame so that the peripheral part of PDP may not face outside.

JP 2000-156182 A JP 2007-264605 A

However, in the configuration in which the peripheral portion of the PDP is covered with the decorative frame as described in Patent Document 2, it is possible to prevent the appearance of the PDP wiring from being exposed to the outside and the appearance of the PDP from being damaged. A level difference will occur. Further, since the display area is not formed over the entire display surface for reasons such as manufacturability and structure, it is necessary to cover a portion that is not the display area.
As described above, for example, an improvement in design freedom and an improvement in appearance such as a design configuration in which a step does not occur on the display surface side are faced.

In view of these points, an object of the present invention is to provide an optical filter that can provide a good visual appearance and provide a good appearance, and a display device including the optical filter.

An optical filter according to the present invention is an optical filter disposed to face a display surface of a display device main body with a predetermined gap, and includes a thin plate-like translucent base material and the translucent base material. A screen frame layer having a light shielding property provided in a peripheral region corresponding to an outer peripheral edge of the display device main body on a surface facing the display surface, and a side opposite to the surface facing the display surface of the translucent substrate. And an outer antireflection layer provided on the surface, wherein the screen frame layer is provided such that the inner peripheral edge side is gradually light-transmitting from the outer peripheral edge side.

The display device according to the present invention is disposed so as to face a display device body having a display surface and the display surface side of the display device body through a predetermined gap. And the optical filter described above.

It is an exploded sectional view showing a schematic structure of a display concerning one embodiment of the present invention. It is sectional drawing which shows schematic structure of the display apparatus main body and optical filter in FIG. It is sectional drawing which shows schematic structure of the display apparatus main body and optical filter in 2nd embodiment. It is sectional drawing which shows schematic structure of the display apparatus main body and optical filter in 3rd embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Display apparatus 200 ... Housing 300 ... Display apparatus main body 310 ... Plasma display panel (PDP) main body 311 ... Display surface 312 ... Main

body antireflection layer

400, 500, 600 ... Optical filter 410 ... Translucent base material 420 ... Screen Frame layer 430: first antireflection layer as an inner antireflection layer 440: second antireflection layer as an outer antireflection layer 510: protective color layer 610: light transmission suppression functional layer which is a light transmission suppression layer

<First embodiment>
[Configuration of display device]
Below, the structure of 1st embodiment of the display apparatus of this invention is demonstrated based on drawing.
FIG. 1 is an exploded cross-sectional view illustrating a schematic configuration of a display device. FIG. 2 is a cross-sectional view illustrating a schematic configuration of the display device main body and the optical filter.
Note that FIGS. 1 and 2 exaggerate the thickness dimension of each configuration in order to facilitate understanding of the configuration. Further, in FIG. 1, the screen frame layer is indicated by a bold line for convenience of explanation, but the screen frame layer is formed with gradation. Further, in FIG. 2, for convenience of explanation, the configuration for connecting the flexible cable is omitted.

In FIG. 1, reference numeral 100 denotes a display device. The display device 100 is a device that displays on the screen image data such as still images and video input to an input terminal (not shown).
The display device 100 includes a housing 200, a display device body 300, an optical filter 400, and the like.

The housing 200 is formed in a substantially square thin box shape with one surface opened. The casing 200 can be attached with a middle case (not shown) to which the display device main body 300 and the optical filter 400 are attached.

The display device main body 300 includes a PDP main body 310, a control unit 320 that displays a screen on the PDP main body 310, a flexible cable 330 that connects the PDP main body 310 and the control unit 320, and the like.
The PDP main body 310 is formed of a pair of substrates (not shown) that are arranged to face each other through a discharge space in which, for example, a He—Xe (helium-xenon) or Ne—Xe (neon-xenon) inert gas is sealed. Have. The PDP main body 310 has a display surface 311 having a display area for screen display on one surface side.
The display surface 311 of the PDP main body 310 is coated with a main body antireflection layer 312 as shown in FIGS. For the main body antireflection layer 312, various methods such as an AR (Anti-Reflection) process and an AG (Anti-Glare) process can be applied. In addition to the main body antireflection layer 312, for example, an electromagnetic wave shielding layer or antifouling layer that is a metal layer that shields electromagnetic waves in a state of sufficiently transmitting visible light, a color layer for blackening, and the like are provided. May be.
The control unit 320 includes a drive circuit that controls image display (not shown), a power supply circuit that supplies power, and the like.

The optical filter 400 has a thin plate-like translucent substrate 410. As this translucent base material 410, for example, a synthetic resin plate such as a glass substrate or an acrylic plate is used.
Further, on one surface side of the translucent substrate 410, that is, a surface facing the display surface 311 in a state of being disposed facing the display surface 311 of the display device main body 300, a screen is formed in a frame shape along the periphery. A frame layer 420 is provided.
In the state assembled as the display device 100 as shown in FIG. 1, the screen frame layer 420 is provided at least in the peripheral portion from the position corresponding to the peripheral portion of the display device main body 300 to the peripheral edge of the translucent substrate 410. . In particular, it is preferable to be provided at a peripheral portion from the position corresponding to the outermost peripheral edge of the display area where the image data of the PDP main body 310 is displayed to the peripheral edge of the translucent substrate 410.
The screen frame layer 420 contains, for example, a black pigment and has a light shielding property. That is, the back side cannot be seen. The screen frame layer 420 is formed so that the color difference between the reflected color of the optical filter 400 at the position of the screen frame layer 420 and the reflected color in the display area of the display surface 311 of the PDP main body 310 is 40 or less. It is preferable that
Here, the color difference is the SCE reflection color of the display surface 311 of the PDP main body 310 measured by the SCE (Specular Component Exclude) measurement method based on the condition C of JIS-Z-8722, and the optical filter 400. This is the difference from the SCE reflection color measured in the same manner from the outer surface side which is the side visually recognized by the user at the position of the screen frame layer 420. It is preferable that the screen frame layer 420 is formed in the SCE reflection color in which the color difference is 40 or less.

The screen frame layer 420 is formed with a so-called gradation so that the light shielding performance decreases as it becomes closer to the inner peripheral edge, that is, the screen frame layer 420 shown in FIG. ing. Thus, the display surface 311 of the display device main body 300 can be seen along the inner peripheral side of the screen frame layer 420 through the screen frame layer 420.
As the formation method in which the translucency increases along the inner peripheral edge side, the inner peripheral edge side is provided with a reduced amount of black pigment, the inner peripheral edge side is gradually made thinner, Any method can be applied, such as forming the edge side into a dot shape and forming the dot diameter to be gradually reduced.

Further, the first antireflection layer 430 as an inner antireflection layer is formed on one surface side of the translucent substrate 410. In the present embodiment, the first antireflection layer 430 is illustrated as being laminated on the screen frame layer 420 from the viewpoint of manufacturability. For example, the first antireflection layer 430 is arranged in parallel on the inner peripheral side of the screen frame layer 420. You may form in the state of a substantially identical layer.
Further, a second antireflection layer 440 as an outer antireflection layer is formed on the other surface side of the translucent substrate 410.
The first antireflection layer 430 and the second antireflection layer 440 may have the same characteristics as the main body antireflection layer 312 or different characteristics. Further, various methods can be applied to the formation method of the first antireflection layer 430 and the second antireflection layer 440 as in the case of the main body antireflection layer 312.
Further, an electromagnetic wave shielding layer or the like may be provided on the translucent substrate 410.

In the display device 100, the display device main body 300 is assembled to the middle case, and the display surface 311 faces the side where the screen frame layer 420, which is one surface side of the optical filter 400, is provided with a predetermined gap therebetween. Assembled. Then, the display device main body 300 is accommodated in the housing 200 together with the middle case, and the middle case is assembled to the housing 200.
In this state, the opening of the housing 200 is closed by the optical filter 400, and the opening edge of the housing 200 is in contact with the peripheral edge on the one surface side of the optical filter 400. That is, the optical filter 400 and the housing 200 are assembled in a state where the opening edge of the housing 200 is located at the position where the screen frame layer 420 of the optical filter 400 is provided.

[Operation of display device]
Next, the operation of the display device will be described.

When external light is irradiated on the display device 100, first, the second antireflection layer 440 of the optical filter 400 causes reflection on the other surface side of the translucent substrate 410 on which the second antireflection layer 440 is provided. It is suppressed. Further, external light transmitted through the second antireflection layer 440 and the translucent substrate 410 is suppressed from being reflected on one surface side of the translucent substrate 410 by the first antireflection layer 430. Further, the external light transmitted through the optical filter 400 is prevented from being reflected on the display surface 311 of the PDP main body 310 by the main body antireflection layer 312. By preventing the reflection of external light by the second antireflection layer 440, the first antireflection layer 430, and the main body antireflection layer 312, reflection is prevented.
Here, a description will be given of a state in which a fluorescent lamp is reflected as external light over the position of the screen frame layer 420 of the optical filter 400 and the position of the display area inside the user. In this case, compared to the external light reflected at the position of the screen frame layer 420, the external light reflected at the position of the display region due to the characteristics of the first antireflection layer 430 is, for example, the first reflection whose reflection color is purple. When the prevention layer 430 is used, it may be visually recognized in purple. However, due to the second antireflection layer 440, both the external light reflected at the position of the screen frame layer 420 and the external light reflected at the position of the display area are similarly, for example, the second antireflection layer 430 whose reflection color is purple. When the color is used, it is visually recognized in a purple color system, preventing the inconvenience that the color eyes are different at the boundary positions, and providing a sense of unity.
On the other hand, the light of the image data displayed on the screen on the display surface 311 passes through the main body antireflection layer 312 and the optical filter 400 and is visually recognized by the user. The first antireflection layer 430 prevents the light of the video data from being transmitted through the main body antireflection layer 312 and the first antireflection layer 430 and reflected on one surface side of the translucent substrate 410. The reflection of the reflected light that is reflected and enters the display surface again is suppressed by the main body antireflection layer 312. The main body antireflection layer 312 and the first antireflection layer 430 prevent the generation of double images of video data.

[Operation effect of display device]
According to the display device of the first embodiment, the screen frame layer 420 is formed so that the inner peripheral edge side is gradually light-transmitting from the outer peripheral edge side.
For this reason, since the display surface 311 of the PDP main body 310 is seen through the inner peripheral edge of the screen frame layer 420 toward the inner peripheral edge, the PDP main body 310 is in the same state as black display when the power is turned off. The boundary between the display area of the display surface 311 and the screen frame layer 420 of the optical filter 400 becomes difficult to see, and the boundary portion between the screen and the screen frame becomes unclear, thereby improving the sense of unity.

The main body antireflection layer 312 is provided on the display surface 311 of the display device main body 300, and the first antireflection layer 430 and the second antireflection layer 312 are provided on both surfaces of the optical filter 400 disposed to face the display surface 311 with a predetermined gap. The antireflection layer 440 is provided, and the peripheral area corresponding to the outer peripheral edge of the display device body 300 is provided between the translucent base material 410 and the first antireflection layer 430 on one surface side which is the display surface 311 side. A screen frame layer 420 is provided.
For this reason, it becomes smooth without producing a step as in a conventional decorative frame, and there is no sense of unevenness between the screen serving as the display area and the screen frame, and a visual sense of unity can be provided to the user. That is, the boundary between the display area of the display surface 311 of the PDP main body 310 and the screen frame layer 420 of the optical filter 400 when the power is turned off becomes difficult to see, so that the entire surface of the optical filter 400 has no boundary for the user. Can be recognized.
In particular, as the configuration of the display device 100, since the peripheral portion of the housing 200 is assembled in a state where the peripheral portion of the housing 200 is in contact with the position where the screen frame layer 420 of the optical filter 400 is provided, the housing 200 is also visually recognized by the user. Without being done, the sense of unity is improved and effective.

Further, the screen frame layer 420 is formed such that the color difference between the reflected color of the optical filter 400 at the position of the screen frame layer 420 and the reflected color on the display surface 311 of the PDP main body 310 is 40 or less. That is, the color of the screen frame layer 420 is the same as that of the display surface 311.
Thereby, the color difference between the screen frame layer 420 and the display surface 311 is not recognized, the boundary between the screen and the screen frame is not recognized, and a more visually integrated feeling can be provided.

The first antireflection layer 430 is provided so as to be laminated on the surface of the screen frame layer 420.
Therefore, for example, the first antireflection layer 430 may be printed and formed without being provided in parallel with the screen frame layer 420, and can be formed by a simple method such as coating, and can provide a sense of unity. The productivity of can be improved.

Further, the screen frame layer 420 is formed so that the inner peripheral edge side is gradually light-transmitting from the outer peripheral edge side.
For this reason, on the inner peripheral side of the screen frame layer 420, the display surface 311 of the PDP main body 310 becomes transparent as it goes to the inner peripheral side, so that the boundary between the screen and the screen frame becomes less clear, and more A sense of unity can be improved.

<Second embodiment>
[Configuration of display device]
Below, the structure of 2nd embodiment of the display apparatus of this invention is demonstrated based on FIG.
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is simplified or omitted.
FIG. 3 is a cross-sectional view illustrating a schematic configuration of the display device main body and the optical filter in the second embodiment.

In FIG. 3, reference numeral 500 denotes an optical filter. This optical filter 500 is formed by laminating a protective color layer 510 on a screen frame layer 420 formed so as to increase translucency according to the inner peripheral edge side in the first embodiment. is there.
The protective color layer 510 is formed by appropriately containing a pigment in a state that is the same as or similar to the color of the display area of the display surface 311 of the PDP main body 310 in the power OFF state, which is the same state of black display. . The protective color layer 510 may be formed by appropriately blending and containing a pigment having a color that is the same as or similar to the color of the display area of the PDP main body 310, as in the screen frame layer 420, for example.
Note that a part of the protective color layer 510 may be extended from the inner peripheral edge of the screen frame layer 420 to the inner edge side.

When the power is turned off, the screen frame layer 420 is improved in translucency as it goes to the inner periphery side, so that the protective color layer 510 that is laminated can be seen through as it goes to the inner periphery side of the screen frame layer 420 It becomes.
Since the color of the protective color layer 510 and the color of the display area of the PDP main body 310 located inside the protective color layer 510 are the same or approximate, the position of the protective color layer 510 and the position of the display surface 311 of the PDP main body 310 are However, although the distance from the user is different, the boundary becomes more ambiguous, and the color of the display surface 311 (dark gray close to black) gradually approaches from the black of the outer screen frame layer 420, thereby making the screen more And a visual sense of unity with the screen frame.

[Operation effect of display device]
According to the display device of the second embodiment, in addition to the configuration of the first embodiment, a protective color layer 510 having a color that is the same as or similar to the color of the display area of the PDP main body 310 in the power-off state is laminated. ing.
Therefore, by gradually approaching the color of the display surface 311 from the outside, it is possible to provide a more visually integrated sense of the screen and the screen frame.

<Third embodiment>
[Configuration of display device]
Below, the structure of 3rd embodiment of the display apparatus of this invention is demonstrated based on FIG.
Note that in the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is simplified or omitted.
FIG. 4 is a cross-sectional view showing a schematic configuration of the display device body and the optical filter in the third embodiment.

In FIG. 4, 600 is an optical filter, and this optical filter 600 has a light transmission suppressing function in the configuration shown in FIG. 2 in which the screen frame layer 420 is formed in a state in which the translucency increases in accordance with the inner peripheral edge side in the first embodiment. A layer 610 is provided.
The light transmission suppressing functional layer 610 is formed as a thin film between the translucent substrate 410 and the second antireflection layer 440. And the light transmission suppression function layer 610 contains a pigment | dye etc., for example, and has the transmittance | permeability suppression function which suppresses the transmittance | permeability of light. Various methods, such as application | coating, vapor deposition, sticking, can be applied for the formation method of this light transmission suppression functional layer 610. FIG.
And it is preferable that the light transmission suppression function layer 610 is formed in 20% or more and 80% or less of a total light transmittance, for example. Here, if the total light transmittance is lower than 20%, the video data displayed on the screen is dark and there is a possibility that a good display state cannot be provided. On the other hand, if the total light transmittance is higher than 80%, the boundary between the screen and the screen frame is easily visible, and it may be difficult to obtain a sense of unity between the screen and the screen frame. For this reason, it is preferable to set to 20% or more and 80% or less of the total light transmittance.

In addition, although the light transmission suppression functional layer 610 has exemplified the configuration having the screen frame layer 420 whose translucency increases toward the inner peripheral side, the protective color layer 510 is added to the screen frame layer 420 of the second embodiment. You may apply to the thing of the provided structure.
The light transmission suppressing function layer 610 has a near-infrared absorption function that suppresses transmission of infrared rays, a neon emission absorption function that suppresses transmission of neon (Ne) emission, a composite layer that combines these, and a light transmission function. The suppression functional layer 610 may have a laminated structure in which an infrared absorption functional layer or a Ne cut functional layer is laminated.

The external light reflected at the position of the screen frame layer 420 of the optical filter 600 and the external light transmitted through the optical filter 600 and reflected by the display surface 311 are partially cut by the light transmission suppression function layer 610, respectively. Will be visually recognized by the user.
For this reason, the boundary between the screen and the screen frame becomes ambiguous, and a sense of unity is obtained visually.
Further, it is formed on the side opposite to the PDP main body 310 with respect to the translucent substrate 410, that is, on the outer side of the translucent substrate 410.
For this reason, even when applied to the PDP main body 310 that emits a large amount of heat, deterioration due to heat can be prevented and deterioration of light transmission can be provided for a long period of time.

[Operation effect of display device]
According to the display device of the third embodiment, in addition to the configuration of the first embodiment, a light transmission suppression function that suppresses light transmission between the translucent substrate 410 and the second antireflection layer 440. A layer 610 is provided.
For this reason, the boundary between the screen and the screen frame is ambiguous, and a sense of unity is obtained visually. In particular, even when the amount of heat released is relatively large, such as the PDP main body 310, the influence of heat is reduced, so that the deterioration, etc. Can be prevented, and the function of suppressing light transmission can be provided stably for a long period of time.

[Modification of Embodiment]
In addition, this invention is not limited to each embodiment mentioned above, The deformation | transformation shown below is included in the range which can achieve the objective of this invention.

That is, in each of the above-described embodiments, the configuration in which the PDP main body 310 is provided as the display device main body 300 is illustrated. However, for example, a liquid crystal panel (LCD), an EL (Electro Luminescence) panel, an SED (Surface-conduction Electron-) The present invention can be applied to various display devices such as an emitter display (CRT), a cathode-ray tube (CRT), and a rear projection display (RPJ).
The color difference between the screen frame layer 420 and the display surface 311 is preferably 40 or less, but is not limited thereto.
Further, as the screen frame layer 420, for example, a character or a figure such as a logo or a character may be provided on the translucent substrate 410 side.

In addition, the specific structure and procedure for carrying out the present invention can be appropriately changed to other structures and the like within a range in which the object of the present invention can be achieved.

[Effect of the embodiment]
In the above-described embodiment, the screen frame layer 420 is formed so that the inner peripheral edge side gradually has translucency from the outer peripheral edge side.
For this reason, since the display surface 311 of the PDP main body 310 is seen through the inner peripheral edge of the screen frame layer 420 toward the inner peripheral edge, the PDP main body 310 is in the same state as black display when the power is turned off. The boundary between the display area of the display surface 311 and the screen frame layer 420 of the optical filter 400 becomes difficult to see, and the boundary portion between the screen and the screen frame becomes unclear, thereby improving the sense of unity.

Hereinafter, an evaluation experiment of a sense of unity performed using various optical filters and a PDP main body will be described.
[Experiment contents]
The PDP main body and the optical filter were assembled in a display device facing each other with a predetermined gap, and sensory evaluation was performed on the visual sense of unity between the screen and the screen frame.
As an optical filter used in the experiment, a screen frame layer is formed by gradation printing, and a second antireflection layer is provided, and the optical filter of Example 1 and Example 1 is further provided with a first antireflection layer. Example 2 was provided as Example 2. Reference Example 1 was obtained by forming the screen frame layer in Example 1 by solid printing in which the inner peripheral edge side and the outer peripheral edge side had the same translucency.
Ten evaluators observed the sense of unity between the screen and the screen frame, and evaluated whether there was a sense of unity.
The measurement results are shown in Table 1.

[Evaluation results]
As shown in Table 1, when the screen frame layer was provided by solid printing (Reference Example 1), it was evaluated that 10 out of 10 people did not have a sense of unity. On the other hand, in Example 1 in which the screen frame layer was provided by gradation printing, 9 out of 10 people evaluated that there was a sense of unity. Furthermore, in Example 2 in which the antireflection layer was provided on both sides, it was evaluated that 10 out of 10 people had a sense of unity.

Claims

An optical filter disposed opposite to the display surface of the display device body via a predetermined gap,
A thin plate-like translucent substrate;
A screen frame layer having a light shielding property provided in a peripheral region corresponding to an outer peripheral edge of the display device main body on a surface of the translucent substrate facing the display surface;
An outer antireflection layer provided on a surface opposite to the surface facing the display surface of the translucent substrate,
The optical filter, wherein the screen frame layer is provided in a state in which the inner peripheral edge side gradually has translucency from the outer peripheral edge side.
The optical filter according to claim 1,
An optical filter comprising an inner antireflection layer provided on a region of the surface of the translucent substrate facing the display surface, the region extending over the screen frame layer, or on the inner peripheral side of the screen frame layer.
The optical filter according to claim 1 or 2, wherein
An optical filter, comprising: a protective color layer having a color that is the same as or similar to that of the display surface in a state where the screen frame layer is laminated on the display surface side and the display device body is not displaying.
An optical filter according to any one of claims 1 to 3,
An optical filter, comprising: a light transmission suppression layer that is provided between the translucent substrate and the outer antireflection layer and suppresses light transmission.
The optical filter according to any one of claims 1 to 4,
An optical filter comprising a near-infrared absorbing layer that is provided between the translucent substrate and the outer antireflection layer and absorbs near-infrared rays.
The optical filter according to any one of claims 1 to 5,
An optical filter comprising: a neon light-emitting light-shielding layer that is provided between the translucent substrate and the outer antireflection layer and suppresses transmission of neon light emission.
The optical filter according to any one of claims 1 to 6,
An optical filter, wherein a color difference between a reflected color at the position of the screen frame layer and a reflected color on a display surface of the display device body is 40 or less.
A display device body having a display surface;
The optical filter according to any one of claims 1 to 7, wherein the optical filter is disposed to face the display surface side of the display device body with a predetermined gap therebetween.
A display device comprising:
The display device according to claim 8,
The display apparatus main body is accommodated in a state where the display surface faces outward, and a housing to which the optical filter is attached in a state where a peripheral portion is located in a region where the screen frame layer of the optical filter is provided. A display device characterized by that.
The display device according to claim 8 or 9, wherein
An anti-reflection treatment is performed on the display surface of the display device body.
The display device according to claim 10,
The display device is characterized in that the antireflection applied to the display surface is provided at least from a position corresponding to the inner peripheral side of the screen frame layer of the optical filter to a region extending to the outer peripheral side.
A display device according to any one of claims 8 to 11,
The display device body is a plasma display panel.