WO2019044847A1

WO2019044847A1 - Display device with panel, interior/exterior member, moving body, panel, decorative sheet, display device with decorative sheet, and display device with panel

Info

Publication number: WO2019044847A1
Application number: PCT/JP2018/031804
Authority: WO
Inventors: 一行峪中; 剛天野; 雅規梅谷; 博臣片桐; 市川　信彦; 翼高倉
Original assignee: 大日本印刷株式会社
Priority date: 2017-08-31
Filing date: 2018-08-28
Publication date: 2019-03-07

Abstract

This display device (10) with a panel is provided with: a display device (20) which has a display surface (21); a panel member (40) which is arranged so as to form a boundary (B) with the display surface (21) when viewed from the normal direction of the display surface (21); and an optical sheet (50) which is arranged so as to cover the boundary (B) between the display surface (21) and the panel member (40). The optical sheet (50) comprises a light transmitting part (65) and a light absorbing part (70), which are aligned in a direction that is parallel to the display surface (21).

Description

Display device with panel, interior / exterior member, moving body and panel, decorative sheet, display device with decorative sheet, display device with panel

The present invention relates to a movable body including a display device with a panel, an interior and exterior member of a mobile body having the display device with a panel, and an interior and exterior member. The present invention also relates to a panel disposed in a display device. Further, the present invention relates to a decorative sheet, a display device with a decorative sheet having a decorative sheet, and a display device with a panel having a display device with a decorative sheet.

For example, a display device for displaying image light as described in JP 9-114003A is known. Such a display device is usually observed in black in the image non-display state. On the other hand, for example, in surface members such as automobiles, furniture, and housing materials, designability is regarded as very important. At present, in display devices applied to various fields, not only the function of simply displaying an image is expected, but also harmony with the surrounding environment on the design surface is required.

By the way, in the image non-display state, the presence of the display surface of the display device may be noticeable. If the presence of the display surface of the display device is noticeable in the image non-display state, the harmony with the surrounding environment on the design surface is disturbed. Therefore, it has been considered to provide a member having a design similar to the display surface of the display device in the image non-display state, typically a black member, on the periphery of the display device. However, as shown in FIG. 16, simply providing a black member around the display device can not make the presence of the display device sufficiently inconspicuous. As a result of the confirmation by the present inventors, the display surface was distinguished by the recognition of the boundary between the display surface of the display device and the members provided around the display device. Therefore, it is desirable not to make the boundary between the display surface of the display device and the members provided around the display device inconspicuous.

The first invention and the second invention are made in consideration of such a point, and in the image non-display state, the boundary between the display surface of the display device and the member provided in the periphery of the display device The purpose is to make it less noticeable.

Moreover, in order to provide design property to a display apparatus, it was possible to face the display surface of a display apparatus, and to provide a decorating sheet. The decorative sheet can provide design that can be harmonized with the peripheral environment of the display device. In addition, a transmitting portion such as a hole is provided in the region facing the display surface of the decorative sheet so that the image light of the display device can transmit the decorative sheet.

By the way, if a permeable part is provided in a decoration sheet, since a design can not be displayed in a portion in which a penetration part was provided, a design of a decoration sheet will be observed thinly. If the transmissive part is provided only in the area facing the display surface of the decorative sheet, the design of the decorative sheet is observed thin only in the area facing the display surface. That is, a difference in design occurs between the area facing the display surface of the decorative sheet and the area other than the area facing the display surface of the decorative sheet. Due to the difference in the designability, the designability of the decorative sheet may be deteriorated, and furthermore, the harmony of the designability with the surrounding environment may be disturbed.

In order to eliminate the difference in design between the area facing the display surface of the decorative sheet and the area other than the area facing the display surface, not only in the area facing the display surface of the decorative sheet but also on the display surface It is conceivable to provide the transmitting portion also in the area other than the facing area. That is, it has been considered to provide the transmitting portion uniformly over the entire decorative sheet. However, since the processing step of providing the transmission part is expensive, it is not preferable to provide the transmission part on the entire decorative sheet.

The third invention is made in consideration of such a point, and at low cost, a design between an area facing the display surface of the decorative sheet and an area other than the area facing the display surface The purpose is to make it difficult to recognize gender differences.

<First Invention>
It is an object of the first invention to make the boundary between the display surface of a display device and a member provided around the display device inconspicuous in the image non-display state.

The display device with panel of the first invention is
A display device having a display surface;
A panel member arranged to form a boundary with the display surface in observation from a direction normal to the display surface;
An optical sheet arranged to cover the boundary between the display surface and the panel member;
The optical sheet includes a light transmitting portion and a light absorbing portion arranged in a direction parallel to the display surface.

In the display device with panel of the first invention,
The panel member has an opening,
The display surface may be located in the opening in observation from a direction normal to the display surface.

In the display device with panel according to the first invention, the panel member may include a base portion and a decorative portion provided on the base portion.

In the display device with panel of the first invention,
The light absorbing portion may include a binder resin and light absorbing particles.

In the display device with panel of the first invention,
The refractive index of the binder resin may be equal to or less than the refractive index of the resin of the light transmitting portion.

In the display device with panel of the first invention, the binder resin may be a resin of the same type as the resin of the light transmitting portion.

In the display device with panel of the first invention,
The light transmitting portions are arranged in a first direction,
The light absorbing portions are alternately arranged in the first direction and the light transmitting portions,
The light transmitting portion and the light absorbing portion may extend linearly in a direction not parallel to the first direction.

In the display device with panel of the first invention,
It further comprises a second optical sheet arranged to cover the boundary between the display surface and the panel member,
The second optical sheet includes a second light transmitting portion arranged in a second direction not parallel to the first direction, and a second light absorbing portion alternately arranged in the second direction with the second light transmitting portion. Part, and
The second light transmitting portion and the second light absorbing portion may extend linearly in a direction not parallel to the second direction.

In the display device with panel of the first invention, the optical sheet may include a sheet material forming the light absorbing portion, and a hole provided in the sheet material and forming the light transmitting portion.

The panel of the first invention is
A panel member arranged to form a boundary with the display surface in observation from a direction normal to the display surface of the display device;
An optical sheet arranged to cover the boundary between the display surface and the panel member;
The optical sheet includes a light transmitting portion and a light absorbing portion arranged in a direction parallel to the display surface.

According to the first aspect, in the image non-display state, it is possible to make the boundary between the display surface of the display device and the members provided around the display device inconspicuous.

<Second invention>
A second aspect of the present invention aims to make the boundary between the display surface of a display device and members provided around the display device inconspicuous in a non-image display state.

The display device with panel of the second invention is
A display device having a display surface;
A panel member arranged to form a boundary with the display surface in observation from a direction normal to the display surface;
A dark sheet disposed so as to cover the boundary between the display surface and the panel member;
L ^* ₁ which is the value of L ^* in the L ^* a ^* b ^* color system of the dark sheet measured by transmitted light is 20 or less.

In panel-equipped display device of the second invention, of the dark sheet as measured by transmitted light ^L * ^a * ^{b *} ^b _{* 1} is ^a _{* 1} and ^{b *} values are values of ^{a *} in the color system May satisfy the following relationship:
^{_{^{^{_{((A * 1) 2 +}}}}} (b * 1) 2) 1/2 ≦ 48

In the display with panel of the second invention, the dark sheet may contain a black pigment.

In the display device with panel of the second invention, the visible light transmittance of the dark sheet may be 40% or more and 60% or less.

In the display with panel according to the second aspect of the present invention, the panel measured by reflected light of a portion where the display surface of the display and the dark sheet overlap in the observation from the normal direction to the display surface. The panel attached display device measured by L ^* _a which is the value of L ^* in the L ^* a ^* b ^* color system of the attached display device, and the reflected light of the portion where the panel member and the dark sheet overlap the the ^L * ^a * ^{b *} is the value of ^{L *} in the color system ^L _{* b,} may satisfy the following relationship.
│ L ^* _a- L ^* _b │ ≦ 3

The panel of the second invention is
A panel member arranged to form a boundary with the display surface in observation from a direction normal to the display surface of the display device;
A dark sheet disposed so as to cover the boundary between the display surface and the panel member;
L ^* ₁ which is the value of L ^* in the L ^* a ^* b ^* color system of the dark sheet measured by transmitted light is 20 or less.

According to the second aspect, in the image non-display state, it is possible to make the boundary between the display surface of the display device and the members provided around the display device inconspicuous.

<Third Invention>
It is an object of the third invention to make it difficult to recognize the difference in design between the area facing the display surface of the decorative sheet and the area other than the area facing the display surface at low cost.

A decorative sheet according to a third aspect of the present invention is a decorative sheet including at least a first area covering a display surface of a display device, and a second area adjacent to the first area.
And a transmissive portion which is a non-formed portion of the pattern portion provided in at least the first region,
The ratio of the transmission part in the first region is higher than the ratio of the transmission part in the second region,
The first 1 ^L in the region * ^a * ^{b *} and ^b _{* 1} is ^a _* 1, ^{b *} values are ^L _* 1, ^{a *} value is a value of ^{L *} in the color system, the second region in ^{^{^{^{_{L * a * b * b *}}}}} 2 is ^a _* 2, ^{b *} values are ^L _* 2, ^{a *} value is a value of ^{L *} in the color system satisfies the following relationship.
((L ^* _1- L ^* ₂ ) ² + (a ^* _1- a ^* ₂ ) ² + (b ^* _1- b ^* ₂ ) ² ) ^1/2 ≦ 3

In the decorative sheet of the third invention, the ratio of the transmission part in the first region may be 10% or more and 50% or less.

The decorative sheet according to the third aspect of the present invention may further include a shielding portion that covers the picture portion in at least the first region.

In the decorative sheet of the third invention, the thickness of the shielding portion in the first region may be thicker than the thickness of the shielding portion in the second region.

In the decorative sheet of the third invention, the density of the pigment contained in the pattern in the first region may be higher than the density of the pigment contained in the pattern in the second region.

In the decorative sheet of the third invention, the thickness of the pattern in the first region may be thicker than the thickness of the pattern in the second region.

In the decorative sheet of the third invention, the area ratio of halftone dots of the pattern portion in the first region may be larger than the area ratio of halftone dots of the pattern portion in the second region.

The display device with a decorative sheet of the third invention is
A display device having a display surface;
And any of the above-described decorative sheets provided facing the display surface.

In the display device with a decorative sheet according to the third aspect of the present invention, the transmissive portions may be arranged in a direction that is not parallel to the arrangement direction of the pixels of the display device.

According to the third aspect, it is possible to make it difficult to recognize the difference in design between the area facing the display surface of the decorative sheet and the area other than the area facing the display surface at low cost.

The interior and exterior members of the movable body according to the first to third inventions include any of the display devices with panels described above or the display devices with decorative sheets described above.

A mobile according to any of the first to third inventions comprises the above-described interior and exterior members.

FIG. 1 is an exploded perspective view schematically showing each element of the display with panel according to the first embodiment. FIG. 2 is a cross-sectional view of a display device with a panel. FIG. 3 is an enlarged sectional view of an optical sheet of the display device with panel. FIG. 4 is a front view showing the display device with panel in the state where an image is displayed on the display surface. FIG. 5 is a front view showing the display device with panel in the state where an image is not displayed on the display surface. FIG. 6 is a cross-sectional view of an optical sheet showing a modification of the optical sheet. FIG. 7 is a view for explaining the method of manufacturing the optical sheet of FIG. FIG. 8 is a view for explaining a method of manufacturing the optical sheet of FIG. FIG. 9 is a figure for demonstrating the manufacturing method of the optical sheet of FIG. FIG. 10 is a view for explaining the method of manufacturing the optical sheet of FIG. FIG. 11 is a view for explaining the second optical sheet. FIG. 12 is a front view of an optical sheet showing a modified example of the optical sheet. FIG. 13 is a view for explaining a modification of the display device with panel. FIG. 14 is a diagram for explaining another modification of the display device with panel. FIG. 15 is a cross-sectional view of the optical sheet for explaining the function of the optical sheet. FIG. 16 is a front view showing a conventional display device in a state where an image is not displayed on the display surface. FIG. 17 is an exploded perspective view schematically showing each element of the display with panel according to the second embodiment. FIG. 18 is a cross-sectional view of a display device with a panel. FIG. 19 is a front view showing the display device with panel in the state where an image is displayed on the display surface. FIG. 20 is a front view showing the display device with panel in the state where an image is not displayed on the display surface. FIG. 21 is an exploded perspective view schematically showing each element of the display with panel according to the third embodiment. FIG. 22 is a cross-sectional view of a display device with a panel. FIG. 23 is a front view of the display device with panel. FIG. 24: is sectional drawing of a decorating sheet, Comprising: It is a figure which expands and shows the pattern part of 1st area | region, and the pattern part of 2nd area | region, respectively. FIG. 25 is a plan view showing halftone dots of the picture portion in the first area. FIG. 26 is a plan view showing halftone dots of the picture part in the second area. FIG. 27: is a front view which expands and shows the decorating sheet of 1st area | region. FIG. 28 is a modification of the display device with panel of FIG. FIG. 29 is a front view of the conventional display with a panel corresponding to FIG.

Hereinafter, an embodiment of the invention will be described with reference to the drawings. In the drawings attached to the present specification, for the sake of easy illustration and understanding, the scale, the dimensional ratio in the vertical and horizontal directions, etc. are appropriately changed from those of the actual one and exaggerated.

In the present specification, the terms "layer", "sheet" and "film" are not distinguished from one another based only on the difference in designation. For example, the term "layer" is a concept including a member which may be called a sheet or a film.

In addition, as used herein, the terms such as “parallel”, “orthogonal”, “identical”, values of length and angle, etc., which specify the shape and geometrical conditions and their degree, etc. Without being bound by the meaning, it shall be interpreted including the extent to which the same function can be expected.

First Embodiment
First, with reference to FIGS. 1 to 16, the first embodiment related to the first invention will be described.

FIG. 1 is an exploded perspective view schematically showing a panel-equipped display device 10 according to a first embodiment of the present invention. As shown in FIG. 1, the display device with panel 10 includes a display device 20 and a panel 30. In addition, in the example shown in figure, although the display apparatus 10 with a panel is shown by flat form, curved shape may be sufficient.

The display device 20 is a device that emits image light, and has a display surface 21 that can emit image light. As the display device 20, any display device such as a liquid crystal display, a plasma display, or an organic EL display can be used. The display surface 21 of such a display device 20 is typically a glass surface.

The panel 30 is a member disposed on the display surface 21 side of the display device 20. The panel 30 includes a panel member 40 disposed adjacent to the display surface 21, and an optical sheet 50 including a light transmitting portion 65 and a light absorbing portion 70. The panel member 40 is arranged to form a boundary B with the display surface 21 in the observation from the normal direction to the display surface 21. The outermost surface of the optical sheet 50 is an exit surface 11 from which the image light is emitted from the display device with panel 10. The panel member 40 also has an opening 47. The display surface 21 is located in the opening 47 in the observation from the normal direction to the display surface 21. The light transmitting portion 65 and the light absorbing portion 70 are arranged in a direction parallel to the display surface 21. Therefore, the image light emitted from the display surface 21 of the display device 20 can be transmitted through the panel member 40 through the opening 47 and can be transmitted through the light transmitting portion 65 of the optical sheet 50. That is, the image light emitted from the display device 20 can be transmitted through the panel 30. When the image light passes through the panel 30, the image light is emitted from the emission surface 11, and an external observer facing the panel-equipped display device 10 can observe the image light.

In addition, the specific aspect of the image light said here is not specifically limited, Image light may contain whole light irrespective of a specific kind and content. Typically, light representing specific information may constitute image light, but light having any other aspect (e.g. light representing irregular patterns or light representing no specific information) Light may be configured. For example, the image light may be light for displaying an image by transmitting a transparent film or the like on which printing is performed, or may be light for displaying a light and dark image by a light shielding material. When the image light is light transmitted through a transparent film or the like on which printing is performed or light that displays light and dark by light shielding material, it is assumed that the transparent film or light shielding material on which printing is performed is included in the display device 20 It is also good.

Next, the panel member 40 will be described. As described above, the panel member 40 is disposed adjacent to the display surface 21 in the observation from the normal direction of the display surface 21. That is, the panel member 40 forms a boundary B with the display surface 21 in the observation from the normal direction of the display surface 21. In the example shown in FIGS. 1 and 2, the panel member 40 is provided around the display device 20 when the display device with a panel 10 is observed from the front. Conversely, the display device 20 is installed in the area where the panel member 40 is provided, and the display device 20 forms the panel-equipped display device 10 together with the panel member 40. The panel member 40 has a design similar to that during image non-display of the display device 20 so as not to make the display device 20 noticeable when the image non-display of the display device 20, and is typically black. The panel member 40 is, for example, a plate-like member having a thickness of 0.5 mm.

As shown in FIG. 2, the panel member 40 includes a base portion 41 and a decorative portion 45 provided on the base portion 41. The base portion 41 is a member capable of appropriately supporting the elements of the panel member 40, in the present embodiment, the decorative portion 45. The decorative portion 45 is a member for providing the panel member 40 with a design, and is typically black. Such a decorative portion 45 is formed of, for example, a resin containing a black pigment. However, depending on the environment in which the panel member 40 is provided, the decorative portion 45 may impart arbitrary design properties such as wood grain and marble.

As shown in FIG. 1, the panel member 40 has a rectangular shape with a rectangular opening 47. However, the present invention is not limited to this, and the panel member 40 may have a shape such as an L-shape or a U-shape in which a part is excluded from the rectangle. Even in such a shape, the image light emitted from the display surface 21 is the panel member by positioning the display surface 21 within the portion removed from the rectangle of the panel member 40 in the observation from the normal direction to the display surface 21 40 can be transmitted. Further, the panel member 40 is not limited to a rectangular shape, and may have an arbitrary shape such as a circular shape. Furthermore, the shape of the opening 47 may be any shape.

Next, the optical sheet 50 will be described. The optical sheet 50 is disposed so as to cover the boundary B between the display surface 21 and the panel member 40 when the display with panel 10 is observed from the front of the display surface 21. That is, the optical sheet 50 is larger than the opening 47 of the panel member 40. As will be described later, the optical sheet 50 can make the boundary B between the display surface 21 of the display device 20 and the panel member 40 which is a member provided around the display device 20 inconspicuous. Preferably, the optical sheet 50 is disposed so as to cover the entire surface of the display surface 21 and the panel member 40 when the display device with a panel 10 is observed from the front of the display surface 21. By this, the fall of the designability by visual recognition of the difference which arises by the presence or absence of the optical sheet 50 can be avoided.

FIG. 3 is an enlarged cross-sectional view of the optical sheet 50. As shown in FIG. As shown in FIG. 3, the optical sheet 50 has a base layer 51 and a light control layer 60 provided on the base layer 51. The base layer 51 can appropriately support the elements of the optical sheet 50, in the present embodiment, the light control layer 60, and has visible light transparency. The light control layer 60 includes a light transmitting unit 65 and a light absorbing unit 70. Therefore, while the optical sheet 50 has transparency by the light transmission part 65, it also has light shielding property by the light absorption part 70. In other words, the optical sheet 50 absorbs a part of incident light and transmits another part. The thickness of the light control layer 60 is, for example, 120 μm or more and 170 μm or less. Further, in order to prevent the formation of a reflective interface between the base material layer 51 and the light transmission part 65 of the light control layer 60, the refractive index of the base material layer 51 and the refractive index of the light transmission part 65 are Preferably they are identical. Typically, the base material layer 51 is formed of the same material as the light transmitting portion 65.

As described above, the light transmitting portion 65 and the light absorbing portion 70 are arranged in a direction parallel to the display surface 21. More specifically, as well shown in FIGS. 1 to 3, the light transmission parts 65 are arranged in the first direction d1 and are not parallel to the first direction d1, in the illustrated example, It extends linearly in the direction orthogonal to the one direction d1. The light absorbing portions 70 are alternately arranged in the light transmitting portion 65 and the first direction d1 and are linear in a direction not parallel to the first direction d1, in the illustrated example, orthogonal to the first direction d1. It extends.

Further, as shown in FIG. 3, the light absorbing portion 70 includes a binder resin 75 and a plurality of light absorbing particles 77 provided in the binder resin 75. The light absorbing particles 77 allow the light absorbing portion 70 to absorb the incident light. As such light absorbing particles 77, acrylic beads containing carbon black can be exemplified.

Furthermore, the refractive index of the binder resin 75 of the light absorbing portion 70 is the material of the light transmitting portion 65, typically a resin, so that the image light is not totally reflected at the interface between the light transmitting portion 65 and the light absorbing portion 70. It is preferable that it is below the refractive index of these. Furthermore, it is more preferable that the interface between the light transmitting portion 65 and the light absorbing portion 70 does not become an optical interface so that the image light is not reflected at the interface between the light transmitting portion 65 and the light absorbing portion 70 . That is, the refractive index of the binder resin 75 of the light absorbing portion 70 is more preferably the same as the refractive index of the resin of the light transmitting portion 65. In the present embodiment, the refractive index of the binder resin 75 of the light absorbing portion 70 and the refractive index of the resin of the light transmitting portion 65 are both 1.55. The relationship between the refractive index of the binder resin 75 of the light absorbing portion 70 and the refractive index of the resin of the light transmitting portion 65 is such that the binder resin 75 of the light absorbing portion 70 is the same kind of resin as the resin of the light transmitting portion 65 Can be satisfied. Here, the same kind of resin means a resin formed using the same kind of main component material. Therefore, for example, when both the binder resin 75 and the light transmitting portion 65 of the light absorbing portion 70 are formed of a urethane acrylate resin, or both of the binder resin 75 and the light transmitting portion 65 of the light absorbing portion 70 are epoxy acrylate resin When it is formed in the above, it can be said that the binder resin 75 of the light absorbing portion 70 is the same type of resin as the resin of the light transmitting portion 65.

The cross-sectional shape of the light absorption part 70 can employ | adopt various shapes. In the example shown in FIG. 2 and FIG. 3, the width W of the light absorbing portion 70 changes so as to become thinner as it is separated from the display surface 21. Here, the fact that the width W of the light absorbing portion 70 changes so as to decrease as it is separated from the display surface 21 means that the width W of the light absorbing portion 70 changes continuously according to the distance from the display surface 21. It does not mean only continuing but includes a portion in which the width W becomes thinner as it is separated from the display surface 21 and does not include a portion whose width W becomes larger as it is separated from the display surface 21 It means that. However, the width W of the light absorbing portion 70 may be changed so as to be thicker as it is separated from the display surface 21 without being limited to the example shown in FIG. 2 and FIG. Also, it may be constant without changing. In the embodiment shown in FIGS. 2 and 3, for example, the shape of the light absorbing portion 70 is a wedge shape having a depth of 135 μm and a width of 22 μm on the side of the emitting surface 11. The width is 25 μm.

Next, the operation of the display device with panel 10 of the first invention will be described.

FIG. 4 shows the panel-equipped display device 10 of the present embodiment in the state where an image is displayed on the display surface 21. As described above, the image light emitted from the display surface 21 is transmitted through the opening 47 of the panel member 40 and the light transmitting portion 65 of the optical sheet 50 to be emitted from the emission surface 11 of the panel-equipped display device 10, Observed by an external observer. The light absorbing portion 70 of the optical sheet 50 is extremely difficult to observe when the image light transmitted through the light transmitting portion 65 has sufficient brightness. Therefore, an external observer can observe only the image light without recognizing the light absorbing portion 70.

Here, unlike the present embodiment, when the refractive index of the binder resin 575 of the light absorbing portion 570 is larger than the refractive index of the resin of the light transmitting portion 565, as shown in FIG. The image light may be totally reflected at the interface with the portion 570. When totally reflected image light L152 is present, light for displaying the same image may be viewed at different positions by the image light L151 transmitted through the light transmitting portion 165 without reflection and the totally reflected image light L152. There is. That is, a double image may be observed. It is not preferable that the double image is observed, because the visibility of the image displayed on the display surface 21 is deteriorated.

On the other hand, in the present embodiment, the refractive index of the binder resin 75 of the light absorbing portion 70 is the same as the refractive index of the resin of the light transmitting portion 65, and the interface between the light transmitting portion 65 and the light absorbing portion 70 However, the image light is not totally reflected at the interface between the light transmitting portion 65 and the light absorbing portion 70. That is, as shown in FIG. 3, the image light L32 incident on the light absorbing portion 70 is absorbed by the light absorbing portion 70 and is not observed. On the other hand, the image light L31 transmitted through the light transmitting unit 65 without entering the light absorbing unit 70 may be observed by an external observer. Therefore, in the display device with panel 10 according to the present embodiment, a double image is difficult to observe, and the visibility of the image displayed on the display surface 21 is not easily deteriorated.

FIGS. 5 and 16 show a display device with a panel in a state where an image is not displayed on the display surface. First, the conventional panel-equipped display device 510 shown in FIG. 16 will be described. The conventional display with panel 510 has a display 520 having a display surface 521 and a panel member 540 having an opening 547, but unlike the present embodiment, it does not have the optical sheet 50. In such a panel-equipped display device 510, even if the decorative portion 545 of the panel member 540 is provided as close as possible to the display surface 521 of the display device 520 in the image non-display state with the appearance such as color or gloss, completely It is practically difficult to match the appearance, and a minute gap between the display device 520 and the panel member 540 causes a boundary B between the display surface 521 of the display device 520 and the panel member 540. Will stand out. For this reason, in the display device 510 with the conventional panel, the display surface 521 of the display device 520 is noticeable, and the design surface is inferior.

Next, the panel attached display device 10 of the present embodiment shown in FIG. 5 will be described. As described above, the panel-equipped display device 10 of the present embodiment includes the optical sheet 50 including the light absorbing portion 70, and the optical sheet 50 covers the boundary B between the display surface 21 and the panel member 40. It is arranged as. Therefore, the display surface 21 of the display device 20 in the image non-display state, the panel member 40, and the boundary B are less likely to be viewed by the optical sheet 50 as compared to the conventional display with panel 510 shown in FIG. For this reason, it becomes difficult to distinguish each of the display surface 21, the panel member 40 and the boundary B. That is, the boundary B becomes inconspicuous by the optical sheet 50.

As described above, the display device with panel 10 according to the present embodiment forms the boundary B with the display surface 21 in the display device 20 having the display surface 21 and in the direction of the normal to the display surface 21. The optical sheet 50 includes the panel member 40 disposed and the optical sheet 50 disposed to cover the boundary B between the display surface 21 and the panel member 40. The optical sheets 50 are arranged in a direction parallel to the display surface 21. A light transmitting portion 65 and a light absorbing portion 70 are included. According to such a panel-equipped display device 10, the light absorbing portion 70 of the optical sheet 50 distinguishes each of the display surface 21, the panel member 40, and the boundary B in a state where image light is not emitted from the display surface 21. It becomes difficult to get along. That is, in the image non-display state, the boundary B between the display surface 21 of the display device 20 and the panel member 40 provided around the display device 20 can be made less noticeable.

Moreover, in the panel-equipped display device 10 according to the present embodiment, the light absorbing portion 70 includes the binder resin 75 and the light absorbing particles 77, and the refractive index of the binder resin 75 is the refraction of the resin of the light transmitting portion 65. Less than the rate. According to such a display device with panel 10, the image light is not totally reflected at the interface between the light transmitting portion 65 and the light absorbing portion 70. Therefore, the totally reflected image light is not observed, and a double image is hard to be observed. That is, the deterioration of the visibility of the image displayed on the display surface 21 can be suppressed.

Note that various modifications can be made to the embodiment described above. Hereinafter, an example of a modification will be described with reference to the drawings. In the following description and the drawings used in the following description, with respect to parts that can be configured in the same manner as the above-described embodiment, the same reference numerals as those used for corresponding parts in the above-described embodiment are used. The explanation is omitted.

(Modified example in which the design part is provided on the optical sheet)
In the embodiment described above, as shown in FIG. 6, the optical sheet 50 may further have a design portion 55 having designability. The design portion 55 can provide design at a position overlapping the display surface 21. Here, "a position overlapping with the display surface 21" means a position facing the display surface 21 in the normal direction of the display surface 21. In the present modification, as shown in FIG. 6, the width W of the light absorbing portion 70 changes so as to increase as it is separated from the display surface 21.

Such a design portion 55 is disposed at a position overlapping the light absorbing portion 70 so as not to block image light transmitted through the light transmitting portion 65 of the optical sheet 50. The design portion 55 has a width equal to or less than the width W in the first direction d1 of the light absorbing portion 70. That is, the design parts 55 are arranged in a pattern corresponding to the arrangement pattern of the light absorbing parts 70. In the present modification, the design portion 55 is disposed at a position overlapping the light absorbing portion 70 via the bonding layer 53 for providing the design portion 55. The thickness of such a design portion 55 is, for example, 1 μm or more and 10 μm or less. In addition, in FIG. 6, although the cross-sectional shape of the design part 55 is a rectangle, it may not be this but a trapezoid shape etc. may be sufficient as it.

The bonding layer 53 has adhesiveness and is, for example, an ultraviolet-curable resin. The bonding layer 53 preferably has a high visible light transmittance.

The design portion 55 may be black, or may be provided with any design property such as wood grain or marble according to the environment in which the panel-equipped display device 10 is provided. The design given by the design portion 55 and the design given by the decorative portion 45 of the panel member 40 are preferably identical in order to make the boundary B between the display surface 21 and the panel member 40 inconspicuous.

When the optical sheet 50 has the design portion 55, as shown in FIG. 6, the light absorbing portion 70 includes the first portion 71 on the side where the display device 20 and the panel member 40 are disposed, and the design portion 55. It is preferable to include a second portion 72 on the overlapping side. In this case, the second portion 72 is preferably white. If the second portion 72 is white, when the design portion 55 is observed in the image non-display state, the second portion 72 does not mix with the design portion 55 and does not affect the designability of the design portion 55. Moreover, it is preferable that the 1st part 71 is black. When the first portion 71 is black, the image light incident to the first portion 71 can be absorbed, and the image light colored by the design portion 55 can be prevented from being emitted.

Next, an example of the manufacturing method of the optical sheet 50 which provided the design part 55 in the member which has the base material layer 51 and the light control layer 60 is demonstrated. First, as shown in FIG. 7, the bonding layer 53 is provided on the side of the light control layer 60 on which the design portion 55 is provided. The bonding layer 53 provided is an ultraviolet curable resin. Thereafter, as shown in FIG. 7, ultraviolet light L <b> 7 is irradiated from the side opposite to the side on which the bonding layer 53 of the light control layer 60 is provided. Since the ultraviolet light L7 is absorbed by the light absorbing portion 70, the bonding layer 53 provided at a position overlapping the light absorbing portion 70 is not irradiated with the ultraviolet light and is not cured. On the other hand, the bonding layer 53 provided at the position overlapping with the light transmitting portion 65 is cured by the irradiation of the ultraviolet light L7. That is, as shown in FIG. 8, the bonding layer 53 provided at the position overlapping with the light transmitting portion 65 loses the adhesiveness. On the other hand, the bonding layer 53 provided at the position overlapping with the light absorbing portion 70 remains adhesive.

Next, as shown in FIG. 9, a decorative layer 55 a supported on the base material 57 is provided on the bonding layer 53. Design part 55 is formed of decoration layer 55a. Moreover, the decoration layer 55a has light transmittance. The decorative layer 55 a is bonded to the light control layer 60 via the bonding layer 53 at a portion of the bonding layer 53 having adhesiveness. Then, as shown in FIG. 9, the ultraviolet-ray L9 is irradiated from the side in which the decoration layer 55a was provided. Since the ultraviolet light L9 can pass through the decorative layer 55a, the irradiation of the ultraviolet light L9 cures the bonding layer 53 provided at a position overlapping the light absorbing portion 70 in a state of being bonded to the decorative layer 55a.

Next, as shown in FIG. 10, the base material 57 is peeled off from the light control layer 60. When the base material 57 is peeled off, the decorative layer 55 a provided at a position overlapping the light absorbing portion 70 of the light control layer 60 is separated from the base material 57 because it is bonded to the light control layer 60. The design part 55 is formed. On the other hand, the decorative layer 55 a provided at a position overlapping the light transmitting portion 65 of the light control layer 60 is peeled from the light control layer 60 together with the base 57 because it is not bonded to the light control layer 60. The optical sheet 50 having the design portion 55 shown in FIG. 6 can be obtained by the above steps.

Since the optical sheet 50 has the design portion 55 having the designability, the design portion 55 can impart the designability to the portion where the optical sheet 50 is disposed. In particular, in the image non-display state, designability can be provided at a position overlapping the display surface 21.

(Modified example provided with a second optical sheet)
In the embodiment described above, the display device with panel 10 has one optical sheet, but may have two optical sheets. That is, in addition to the optical sheet 50, the panel-equipped display device 10 may further include a second optical sheet 80. Similar to the optical sheet 50, the second optical sheet 80 is disposed so as to cover the boundary B between the display surface 21 and the panel member 40, and is arranged in a direction parallel to the display surface 21 The second light absorbing portion 90 is included. In the example illustrated in FIG. 11, the second light transmitting unit 85 is arranged in a second direction d2 that is not parallel to the first direction d1, and the second light absorbing unit 90 includes the second light transmitting unit 85 and the second light transmitting unit 85. They are alternately arranged in the direction d2. The second light transmitting portion 85 and the second light absorbing portion 90 extend linearly in a direction that is not parallel to the second direction d2, in the illustrated example, orthogonal to the second direction d2. In the illustrated example, the first direction d1 and the second direction d2 are orthogonal to each other.

The second optical sheet 80 is disposed at a position overlapping the optical sheet 50. Therefore, the outermost surface of the second optical sheet 80 is the exit surface 11 of the panel-equipped display device 10. By the second light absorbing portion 90 of the second optical sheet 80, the display surface 21, the panel member 40, and the boundary B of the display device 20 in the image non-display state become more difficult to visually recognize. Therefore, the display surface 21, the panel member 40, and the boundary B are more difficult to distinguish. That is, the boundary B becomes less noticeable by the second optical sheet 80.

(Modification example of optical sheet)
Furthermore, in the above-described embodiment, the light transmitting portions 65 are arranged in the first direction d1, and the light absorbing portions 70 are alternately arranged in the light transmitting portions 65 and the first direction d1. However, the light absorbing portion 70 may be formed as the sheet material 70 a, and the light transmitting portion 65 may be formed as the hole 65 a provided in the sheet material 70 a. That is, the optical sheet 50 may include the sheet material 70 a forming the light absorbing portion 70 and the hole 65 a forming the light transmitting portion 65.

A modification of the optical sheet 50 is shown in FIG. In the illustrated example, the holes 65a forming the light transmitting portion 65 are arranged in the direction parallel to the display surface 21, and the sheet material 70a forming the light absorbing portion 70 is arranged between the holes 65a. In the illustrated example, the holes 65a are circular, but may have any shape.

Even in such an optical sheet 50, the display surface 21, the panel member 40, and the boundary B of the display device 20 in the image non-display state are less likely to be viewed by the sheet material 70a forming the light absorbing portion 70 of the optical sheet 50. . For this reason, the display surface 21, the panel member 40, and the boundary B are difficult to distinguish, and the optical sheet 50 makes the boundary B less noticeable.

(Modified example provided with translucent layer)
As shown in FIG. 13, the display device with panel 10 may further include a translucent layer 100 laminated on the optical sheet 50. When the semitransparent layer 100 is laminated on the optical sheet 50, the outermost surface of the semitransparent layer 100 becomes the emission surface 11 from which the image light is emitted from the display device with panel 10. The translucent layer 100 suppresses the transmission of light by including a black color pigment inside a transparent resin such as polycarbonate, ABS, acrylic or the like. In addition, the semitransparent layer 100 has a sufficient visible light transmittance capable of transmitting image light from the display device 20. Specifically, the visible light transmittance of the semitransparent layer 100 is 20% or more and 50% or less.

Here, the visible light transmittance of the semitransparent layer 100 was measured using a spectrophotometer ("UV-3100PC" manufactured by Shimadzu Corporation, a product conforming to JIS K 0115) at a measurement wavelength of 380 nm to 780 nm. It is specified as the average value of the transmittance at each wavelength.

The semitransparent layer 100 is disposed to cover the boundary B between the display surface 21 and the panel member 40 as in the case of the optical sheet 50. That is, the semitransparent layer 100 is larger than the opening 47 of the panel member 40. Since the visible light transmittance of the semitransparent layer 100 is sufficiently low, the boundary between the display surface 21 of the display device 20 and the panel member 40 provided around the display device 20 by the semitransparent layer 100 B can be made less noticeable. Preferably, the semitransparent layer 100 is disposed so as to cover the entire surface of the display surface 21, the panel member 40 and the optical sheet 50 when the display with panel 10 is observed from the front of the display surface 21. By this, the fall of the designability by visual recognition of the difference which arises by the presence or absence of the semi-transparent layer 100 can be avoided.

The operation in the case where the display device with panel 10 has the semitransparent layer 100 will be described. When an image is displayed on the display surface 21, the image light emitted from the display surface 21 passes through the opening 47 of the panel member 40 and the light transmitting portion 65 of the optical sheet 50 and is incident on the semitransparent layer 100. Since the transmissivity of the semitransparent layer 100 is 20% or more, image light with sufficient brightness can be transmitted through the semitransparent layer 100. Therefore, an external observer can observe the image light emitted from the emission surface 11.

In a state where an image is not displayed on the display surface 21, a boundary B between the display surface 21 and the panel member 40 is covered by the optical sheet 50 and the semitransparent layer 100. The visible light transmittance of the semitransparent layer 100 is 50% or less, which is sufficiently low. Therefore, the display surface 21 of the display device 20 in the image non-display state, the panel member 40, and the boundary B become less visible by the optical sheet 50 and the semitransparent layer 100. Therefore, the display surface 21, the panel member 40, and the boundary B are more difficult to distinguish. That is, in addition to the optical sheet 50, the translucent layer 100 makes the boundary B less noticeable.

(Modification of display device)
When the image light is light for displaying a light and dark image by a light shielding object, as shown in FIG. 14, the display device 20 is a combination of a sheet material 20 a having a transmitting portion corresponding to the display image and a light source 20 b. It may be. The sheet material 20 a includes a base 20 x having a light shielding property, and a transmission region (transmission part) 20 y provided on the base 20 x. The transmissive region 20y may be made of, for example, a through hole formed in the base 20x, or a film material provided in the through hole and transmitting light in a specific wavelength range. Further, in the example shown in FIG. 14, the color of light emitted from the light source 20b may be changed, and the display object may be displayed in a plurality of colors.

In addition, the display device 20 may have an arbitrary function. For example, the display device 20 may be provided with a touch panel function by having the touch panel sensor. In this example, the electrode layer forming the touch panel sensor may be stacked on the panel 30 or may be provided separately from the panel 30.

The display device 10 with a panel described above is used, for example, as an interior member or exterior member 2 of a mobile unit 1 such as a vehicle such as a car or railway, an aircraft, a ship, or a spacecraft. As a specific example, the display device with panel 10 is used for a center console of a car or a door trim. Alternatively, the display device with panel 10 may be used by being incorporated into an interior member or exterior member of a building, an electronic device, furniture or an electrical appliance.

Second Embodiment
Next, with reference to FIGS. 16 to 20, a second embodiment related to the second invention will be described.

FIG. 17 is an exploded perspective view schematically showing a display apparatus with panel 110 according to a second embodiment of the present invention. As shown in FIG. 17, the display device with panel 110 includes a display device 120 and a panel 130. In the illustrated example, the display device with a panel 110 is shown as a flat plate, but each component of the display device with a panel 110 to be described later is curved so that the display device with a panel 110 can be The shape may be curved.

The display device 120 is a device that emits image light, and has a display surface 121 that can emit image light. The display device 120 can use any display device such as a liquid crystal display, a plasma display, an organic EL display, and the like. The display surface 121 of such a display device 120 is typically a glass surface.

The panel 130 is a member disposed on the display surface 121 side of the display device 120. The panel 130 includes a panel member 140 disposed adjacent to the display surface 121, and a dark sheet 150 disposed so as to cover the panel member 140 from the side opposite to the display device 120. As shown in FIG. 18, the panel member 140 is arranged to form a boundary B with the display surface 121 in the observation from the normal direction to the display surface 121. Further, the outermost surface of the dark-colored sheet 150 is an outer surface 111 including an emission surface for emitting image light from the display device with panel 110. That is, in the outer surface 111, in the observation from the normal direction to the display surface 121, the first portion A1, which is a portion where the display surface 121 and the dark color sheet 150 overlap, the panel member 140 and the dark color sheet 150 There is a second portion A2 which is an overlapping portion, and the boundary between the first portion A1 and the second portion A2 is a boundary B. The panel member 140 also has an opening 147. In the observation from the normal direction to the display surface 121, the display surface 121 is located in the opening 147. Furthermore, the dark sheet 150 can transmit visible light. Therefore, the image light emitted from the display surface 121 of the display device 120 can pass through the panel member 140 through the opening 147 and can pass through the dark sheet 150. That is, the image light emitted from the display device 120 can pass through the panel 130. When the image light passes through the panel 130, the image light is emitted from the outer surface 111, and an external observer facing the display device with a panel 110 can observe an image formed by the image light.

In addition, the specific aspect of the image light said here is not specifically limited, Image light may contain whole light irrespective of a specific kind and content. Typically, light representing specific information may constitute image light, but light having any other aspect (e.g. light representing irregular patterns or light representing no specific information) Light may be configured. For example, the image light may be light for displaying an image by transmitting a transparent film or the like on which printing is performed, or may be light for displaying a light and dark image by a light shielding material.

Next, the panel member 140 will be described. As described above, the panel member 140 is disposed adjacent to the display surface 121 in the observation from the normal direction of the display surface 121. That is, the panel member 140 forms a boundary B with the display surface 121 in the observation from the normal direction of the display surface 121. In the example shown in FIGS. 17 and 18, the panel member 140 is provided around the display device 120 when the display device with a panel 110 is viewed from the front. Conversely, the display device 120 is installed in the area where the panel member 140 is provided, and the display device 120 forms the panel-equipped display device 110 together with the panel member 140. The panel member 140 has a design similar to that during image non-display of the display device 120 so as not to make the display device 120 conspicuous when the image non-display of the display device 120, and is typically black. The panel member 140 is, for example, a plate-like member having a thickness of 0.5 mm or more and 2.0 mm or less. The panel member 140 may be a flat member, a curved member, or a member including a flat portion and a curved portion.

As shown in FIG. 18, the panel member 140 includes a base portion 141 and a decorative portion 145 provided on the base portion 141. The base portion 141 is a member capable of properly supporting the elements of the panel member 140, in the present embodiment, the decorative portion 145. The decorative portion 145 is a member for providing the panel member 140 with a design, and is typically black. Such a decorative portion 145 is formed of, for example, a resin containing a black pigment. However, depending on the environment in which the panel member 140 is provided, the decorative portion 145 may be provided with any design such as wood grain and marble.

As shown in FIG. 17, the panel member 140 has a rectangular shape with a rectangular opening 147. However, the present invention is not limited to this, and the panel member 140 may have an L-shaped, U-shaped, etc. shape obtained by removing a part from a rectangle. Even in such a shape, the image light emitted from the display surface 121 is the panel member because the display surface 121 is positioned within the portion removed from the rectangle of the panel member 140 in the observation from the normal direction to the display surface 121 140 can be transmitted. Further, the panel member 140 is not limited to a rectangular shape, and may have an arbitrary shape such as a circular shape. Furthermore, the shape of the opening 147 may be any shape.

Next, the dark sheet 150 will be described. The dark sheet 150 is disposed so as to cover the boundary B between the display surface 121 and the panel member 140 when observed from the front of the display surface 121. The dark sheet 150 is larger than the opening 147 of the panel member 140. The dark sheet 150 has a dark-based color, and is typically a black-based color. Specifically, in the dark sheet 150, L ^* _1, which is the value of L ^* in the L ^* a ^* b ^* colorimetric system measured by transmitted light, is 20 or less, and L is measured by transmitted light. ^* a ^* b ^* ^b _{* 1} is ^a _{* 1} and ^{b *} values are values of ^{a *} in the color system satisfies the following relationship.
^{_{^{^{_{((A * 1) 2 +}}}}} (b * 1) 2) 1/2 ≦ 48
It is preferable that the dark sheet 150 contain a black pigment so that the dark sheet 150 has a color satisfying such a relationship. Examples of the black pigment contained in the dark color sheet 150 include carbon black and titanium black.

The value of L ^* , the value of a ^{* and} the value of b ^{* in} the L ^* a ^* b ^* color system can be measured using a colorimeter or a spectrocolorimeter. The L ^* value, a ^* value and b ^* value of the dark sheet 150 may be measured from the reflected light of the dark sheet 150 using, for example, a spectrophotometric system ("CM-700d" manufactured by Konica Minolta) it can. As conditions, the main light source uses D65, the display system uses L ^* a ^* b ^* , and the color difference equation uses ΔE ^* ab (CIE 1976).

Also, as described above, the dark sheet 150 can transmit visible light. Specifically, the visible light transmittance of the dark sheet 150 is preferably 40% or more and 60% or less. Here, the visible light transmittance is measured by using a spectrophotometer ("UV-3100PC" manufactured by Shimadzu Corporation, a product conforming to JIS K 0115) at a measurement wavelength of 380 nm to 780 nm. Is identified as the average value of the transmittance at

As described later, the dark color sheet 150 can make the boundary B between the display surface 121 of the display device 120 and the panel member 140 which is a member provided around the display device 120 less noticeable. That is, when the display device with a panel 110 described above is observed from the normal direction to the display surface 121 of the display device 120, a first portion which is a portion where the display surface 121 and the dark sheet 150 shown in FIG. a moiety which are overlapped and ^L _{* a} is a value of ^{L *} in ^{^the L} * ^a * ^{b *} color system of the panel-equipped display device 110, as measured by the reflected light of the A1, the panel member 140 and the dark color sheet 150 The following relationship is satisfied with L ^* _b which is the value of L ^* in the L ^* a ^* b ^* color system of the display with panel 110 measured by the reflected light of the second portion A2.
│ L ^* _a- L ^* _b │ ≦ 3

Here, the L ^* value of the panel-attached display device 110 of the first portion A1 and the second portion A2 is the value of the first portion A1 and the second portion A2 using the spectrophotometric system ("CM-700d" manufactured by Konica Minolta). It can measure from the reflected light of the display apparatus 110 with a panel in 2 part A2. As conditions, the main light source uses D65, the display system uses L ^* a ^* b ^* , and the color difference equation uses ΔE ^* ab (CIE 1976).

Preferably, the dark sheet 150 is disposed so as to cover the entire surface of the display surface 121 when the panel-equipped display device 110 is observed from the front of the display surface 121, and more preferably the display sheet 121 and the panel member 140. It is arranged to cover the entire surface. As a result, it is possible to avoid the deterioration of the designability due to the visual recognition of the difference caused by the presence or absence of the dark sheet 150.

Next, the operation of the display device with panel 110 of the present embodiment will be described.

FIG. 19 shows the panel-equipped display device 110 of the present embodiment in the state where an image is displayed on the display surface 121. As described above, the image light emitted from the display surface 121 is transmitted through the opening 147 of the panel member 140 and transmitted through the dark sheet 150, and is emitted from the outer surface 111 of the panel-equipped display device 110 to observe the outside. Observed by In particular, when the visible light transmittance of the dark sheet 150 is 40% or more, a sufficient amount of image light can be transmitted through the dark sheet 150, so that the observer can observe a clear image. .

Further, ^L * ^a * ^{b *} ^b _{* 1} is ^a _{* 1} and ^{b *} values are values of ^{a *} in the color system of the dark sheet 150 as measured by transmitted light, which satisfies the following relationship .
^{_{^{^{_{((A * 1) 2 +}}}}} (b * 1) 2) 1/2 ≦ 48
That is, the saturation of the dark sheet 150 is reduced. For this reason, even if the image light is mixed with the dark sheet 150 and observed, the dark sheet 150 effectively absorbs the visible light in the specific wavelength range, thereby effectively reducing the color reproducibility of the image. It can be suppressed.

FIG. 20 and FIG. 16 show a display device with a panel in a state where an image is not displayed on the display surface. First, the conventional panel-equipped display device 510 shown in FIG. 16 will be described. The conventional display with panel 510 has a display 520 having a display surface 521 and a panel member 540 having an opening 547, but unlike the present embodiment, it does not have a dark sheet. In such a panel-equipped display device 510, even if the decorative portion 545 of the panel member 540 is provided as close as possible to the display surface 521 of the display device 520 in the image non-display state with the appearance such as color or gloss, completely It is practically difficult to match the appearance, and a minute gap between the display device 520 and the panel member 540 causes a boundary B between the display surface 521 of the display device 520 and the panel member 540. Will stand out. For this reason, in the display device 510 with the conventional panel, the display surface 521 of the display device 520 is noticeable, and the design is deteriorated.

Next, the panel-equipped display device 110 of the present embodiment shown in FIG. 20 will be described. As described above, the panel-equipped display device 110 of this embodiment, dark sheet 150 as measured by the transmitted light has a value of ^{L *} in ^{^the L} * ^a * ^{b *} colorimetric system ^L _{* 1} is 20 or less and The dark-colored sheet 150 is disposed so as to cover the boundary B between the display surface 121 and the panel member 140. Therefore, the display surface 121, the panel member 140, and the boundary B of the display device 120 in the image non-display state are observed uniformly darker by the dark sheet 150 as compared to the conventional display with panel 510 shown in FIG. Ru. Therefore, it is difficult to distinguish between the first portion A1 where the display surface 121 and the dark sheet 150 overlap and the second portion A2 where the panel member 140 and the dark sheet 150 overlap. . In other words, it is difficult to distinguish between the display surface 121, the panel member 140, and the boundary B. That is, the dark color sheet 150 makes the boundary B less noticeable.

In particular, when the visible light transmittance of the dark sheet 150 is 60% or less, light transmitted through the dark sheet 150, for example, light transmitted through the dark sheet 150 and reflected by the display surface 121 and transmitted again through the dark sheet 150 But it gets dark enough. Therefore, the display surface 121, the panel member 140, and the boundary B are more difficult to distinguish, and the boundary B becomes less noticeable.

Further, preferably, a value of ^a _{* 1} and ^{b *} are values of ^{a *} in ^{^the L} * ^a * ^{b *} color system of the dark sheet 150 as measured by the transmitted light ^b _{* 1,} the following relationship I meet.
^{_{^{^{_{((A * 1) 2 +}}}}} (b * 1) 2) 1/2 ≦ 48
When this relationship is satisfied, the dark sheet 150 is observed to be a color with low saturation, that is, black. Therefore, in the image non-display state, the display surface 121, the panel member 140, and the boundary B are more difficult to distinguish.

Furthermore, preferably, in the observation from the normal direction to the display surface 121, the display device with panel 110 is measured by the reflected light of the first portion A1, which is a portion where the display surface 121 and the dark sheet 150 overlap. that the ^L _{* a} is a value of ^{L *} in ^{^the L} * ^a * ^{b *} color system of the panel-equipped display device 110, the reflected light of the panel member 140 and the second portion is a portion where the dark color sheet 150 is overlapped A2 The following relationship is satisfied with L ^* _b which is the value of L ^* in the L ^* a ^* b ^* color system of the display with panel 110 measured by:
│ L ^* _a- L ^* _b │ ≦ 3
When this relationship is satisfied, the difference in lightness between the first portion A1 and the second portion A2 is hardly recognized. That is, it is extremely difficult for the observer who observes the display device with panel 110 to distinguish and recognize the first portion A1 and the second portion A2. Therefore, it becomes extremely difficult for the observer to recognize the boundary B between the first portion A1 and the second portion A2.

As described above, in the display device with panel 110 according to the present embodiment, the display device 120 having the display surface 121 and the boundary B with the display surface 121 in observation from the normal direction to the display surface 121 are formed. L ^* a ^* b ^{* of the} dark-colored sheet 150 provided with the panel member 140 arrange | positioned, and the dark-colored sheet 150 arrange | positioned so that the boundary B of the display surface 121 and the panel member 140 may be covered ^. L ^* ₁ which is the value of L ^{* in} the color system is 20 or less. According to such a display device with a panel 110, when the image light is not emitted from the display surface 121, it is difficult for the dark sheet 150 to distinguish between the display surface 121, the panel member 140, and the boundary B. That is, in the image non-display state, the boundary B between the display surface 121 of the display device 120 and the panel member 140 provided around the display device 120 can be made less noticeable.

Further, in the display device with panel 110 according to the present embodiment, the values are a ^* ₁ and b ^* that are values of a ^* in the L ^* a ^* b ^* color system of the dark sheet 150 measured by transmitted light. b ^* ₁ satisfies the following relationship:
^{_{^{^{_{((A * 1) 2 +}}}}} (b * 1) 2) 1/2 ≦ 48
According to such a display device with a panel 110, in a state where image light is emitted from the display surface 121, the color reproducibility of the image observed when visible light in a specific wavelength range is absorbed by the dark sheet 150 is degraded Can be effectively suppressed. In addition, in a state in which image light is not emitted from the display surface 121, the dark sheet 150 is observed in black, which makes it more difficult to distinguish the display surface 121, the panel member 140, and the boundary B. It can be made less noticeable.

Furthermore, in the display device with panel 110 according to the present embodiment, the visible light transmittance of the dark sheet 150 is 40% or more and 60% or less. According to such a display device with a panel 110, a sufficient amount of image light can be transmitted through the dark sheet 150 in a state where the image light is emitted from the display surface 121. Clear images can be observed without being disturbed by 150. In addition, in a state in which image light is not emitted from the display surface 121, light transmitted through the dark sheet 150 is sufficiently dark, and the display surface 121, the panel member 140, and the boundary B are more difficult to distinguish. That is, the boundary B can be made more inconspicuous.

Further, in the display with panel 110 according to the present embodiment, in the observation from the normal direction to the display surface 121, it is measured by the reflected light of the portion where the display surface 121 of the display device 120 and the dark sheet 150 overlap. that the ^L _{* a} is a value of ^{L *} in ^{^the L} * ^a * ^{b *} color system of the panel-equipped display device 110, the panel member 140 and the panel with which the dark sheet 150 is measured by the reflected light are overlapped portion The following relationship is satisfied with L ^* _b , which is the value of L ^* in the L ^* a ^* b ^* color system of the display device 110.
│ L ^* _a- L ^* _b │ ≦ 3
According to such a display with panel 110, it is extremely difficult for an observer who observes the display with panel 110 to recognize the difference in lightness between the first portion A1 and the second portion A2. Therefore, the boundary B, which is the boundary between the first portion A1 and the second portion A2, can be made more inconspicuous.

Note that various modifications can be made to the embodiment described above.

In the embodiment described above, the dark sheet 150 is monochrome. However, depending on the environment in which the panel-equipped display device 110 is provided, the dark-colored sheet 150 may be provided with any design property such as wood grain or marble. The design given by the dark color sheet 150 and the design given by the decorative portion 145 of the panel member 140 are preferably the same in order to make the boundary B between the display surface 121 and the panel member 140 inconspicuous.

The panel-mounted display device 110 described above is used, for example, as an interior member or exterior member 102 of a mobile object 101 such as a vehicle such as a car or railway, an aircraft, a ship, or a spacecraft. As a specific example, the display apparatus with panel 110 is used for a center console of a car and a door trim. Alternatively, the paneled display device 110 may be used by being incorporated into an interior member or exterior member of a building, an electronic device, furniture or an electrical appliance.

Third Embodiment
Next, a third embodiment related to the third invention will be described with reference to FIGS. 21 to 29. FIG.

FIG. 21 is an exploded perspective view schematically showing a display apparatus with panel 210 according to a third embodiment of the third invention. As shown in FIG. 21, the display device with panel 210 includes a display device with decorative sheet 220 and a panel member 230. The display device with decorative sheet 220 has a display device 240 having a display surface 241 and a decorative sheet 250 provided to face the display surface 241. Further, the display device with panel 210 has a display device 240 and a panel 215 provided facing the display surface 241 of the display device 240, and the panel 215 includes a panel member 230 and a decorative sheet 250. It is. In the illustrated example, the paneled display device 210 is shown as a flat plate, but the paneled display device 210 is curved as each component of the paneled display device 210 described later is curved. It may be shaped.

The display device 240 is a device that emits image light, and has a display surface 241 that can emit image light. The display device 240 can use any display device such as a liquid crystal display, a plasma display, an organic EL display, and the like. The display surface 241 of such a display device 240 is typically a glass surface. The pixels px of the display device 240 are arranged along the fourth direction d4 orthogonal to the third direction d3 and the third direction d3 shown in FIG.

The panel member 230 is disposed between the display device 240 and the decorative sheet 250. Also, the panel member 230 has an opening 237. In the observation from the normal direction to the display surface 241, the display surface 241 is positioned in the opening 237. Furthermore, as described later, the decorative sheet 250 includes a transmitting portion 257 capable of transmitting visible light. Therefore, the image light emitted from the display surface 241 of the display device 240 can pass through the panel member 230 through the opening 237, and can pass through the decorative sheet 250. When the image light passes through the panel member 230 and the decorative sheet 250, the image light is emitted from the display device with panel 210, and an external observer can observe the image formed by the image light.

In the example shown in FIG. 21 and FIG. 22, the panel member 230 is provided around the display device 240 when the display device with a panel 210 is observed from the front. Conversely, the display device 240 is installed in the area where the panel member 230 is provided, and the display device 240 forms the panel-attached display device 210 together with the panel member 230 and the decorative sheet 250. The panel member 230 is, for example, a plate-like member having a thickness of 0.01 mm or more and 5 mm or less. The panel member 230 may be a flat member, a curved member, or a member including a flat portion and a curved portion.

As shown in FIG. 22, the panel member 230 includes a base material layer 231 and a design layer 235 provided on the base material layer 231. The base layer 231 is a member that can appropriately support the elements of the panel member 230, in the present embodiment, the design layer 235. The design layer 235 is a member for providing the panel member 230 with a design, and is typically a dark color such as black. Such a design layer 235 is formed of, for example, a resin containing a black pigment. Examples of black pigments include carbon black and titanium black. The design layer 235 may be provided with any design property such as wood grain or marble according to the environment in which the panel member 230 is provided.

Further, as shown in FIG. 21, the panel member 230 has a rectangular shape having a rectangular opening 237. However, the present invention is not limited to this, and the panel member 230 may have a shape such as an L-shape or a U-shape in which a part is excluded from the rectangle. Even in such a shape, the image light emitted from the display surface 241 is a panel member because the display surface 241 is positioned within the portion removed from the rectangle of the panel member 230 in the observation from the normal direction to the display surface 241. 230 can be transmitted. Further, the panel member 230 is not limited to a rectangular shape, and may have an arbitrary shape such as a circular shape. Furthermore, the shape of the opening 237 may be any shape.

Next, the decorative sheet 250 will be described. The decorative sheet 250 gives the display device 240 a design. As shown in FIGS. 22 and 23, the decorative sheet 250 includes a first area 250 a covering at least the display surface 241 of the display device 240 and a second area 250 b covering the panel member 230. . The first region 250a and the second region 250b are adjacent to each other. In the illustrated example, the second area 250b circumferentially surrounds the first area 250a. Further, in the illustrated example, the first area 250 a is an area facing the display surface 241 a of the display device 240. However, the present invention is not limited to this example, and the first area 250a may be wider than the area facing the display surface 241a.

The decorative sheet 250 has a base portion 251, a picture portion 253 and a shielding portion 255 provided on the base portion 251, and a transmitting portion 257 which is a non-formation portion of the picture portion 253 and the shielding portion 255. doing. Further, the decorative sheet 250 is ^a _* 1, ^{b *} values are ^L _* 1, ^{a *} value is a value of ^{L *} in ^{^the L} * ^a * ^{b *} color system in the first region 250a b ^* _1, ^L * ^a * ^{b *} ^b _{* 2} is ^a _* 2, ^{b *} values are ^L _* 2, ^{a *} value is a value of ^{L *} in the color system is in the second region 250b, The following relationship is satisfied.
((L ^* _1- L ^* ₂ ) ² + (a ^* _1- a ^* ₂ ) ² + (b ^* _1- b ^* ₂ ) ² ) ^1/2 ≦ 3

The value of L ^* , the value of a ^{* and} the value of b ^{* in} the L ^* a ^* b ^* color system can be measured using a colorimeter or a spectrocolorimeter. The value of L ^*, the value of a ^{* and} the value of b ^* of the decorative sheet 250 may be determined, for example, using a spectrocolorimeter ("CM-700d" manufactured by Konica Minolta) at any 50 points of the decorative sheet 250. The value of L ^* , the value of a ^* , and the average value of b ^* can be defined as the value of L ^* measured from the reflected light of the decorative sheet 250 under the condition of the measurement diameter 8 8 mm.

The base portion 251 appropriately supports the picture portion 253 and the shielding portion 255 provided on the base portion 251. The base portion 251 is a transparent film-like member. Although any material may be used as the base portion 251 as long as it can transmit visible light and appropriately support the picture portion 253 and the shielding portion 255, for example, polymethyl methacrylate, polyethylene terephthalate, polyethylene naphthalate, Polycarbonate, polystyrene, cyclic polyolefin and the like can be mentioned. Further, in consideration of the visible light transmittance, the appropriate supportability of the picture portion 253 and the shielding portion 255, and the like, the base portion 251 preferably has a thickness of 10 μm to 500 μm.

The design part 253 displays the design which the decoration sheet 250 displays. The pattern portion 253 can display patterns such as figures, patterns, designs, colors, pictures, photographs, characters, marks, letters and numbers as designs. In particular, as a design that can be harmonized with the surrounding environment in which the panel-mounted display device 210 is provided, a wood-grain or marble-like pattern or a geometric pattern can be illustrated. Moreover, the pattern part 253 may display a pattern of a single color as a design. In order to display such a pattern, the pattern portion 253 contains a pigment. The pigment may be a pigment of any color, for example carbon black of a black pigment. In addition, in FIG. 22, although the cross-sectional shape of the pattern part 253 is a rectangle, not only this but a trapezoid shape etc. may be sufficient.

In FIG. 24, the picture parts 253 in the first area 250a and the second area 250b are shown enlarged. As shown in FIG. 24, the thickness Ha of the pattern portion 253a in the first region 250a is thicker than the thickness Hb of the pattern portion 253b in the second region 250b. Therefore, the design portion 253a in the first area 250a can display the design darker than the design portion 253b in the second area 250b. Here, the thickness of the pattern portion 253 is the length of the pattern portion 253 along the normal direction of the base portion 251 supporting the pattern portion 253. As a specific example, the thickness Ha of the pattern portion 253a in the first region 250a is 1 μm or more and 20 μm or less, and the thickness Hb of the pattern portion 253b in the second region 250b is 0.5 μm or more and 20 μm or less.

Further, the concentration of the pigment contained in the pattern portion 253a in the first region 250a is higher than the concentration of the pigment contained in the pattern portion 253b in the second region 250b. The higher the concentration of pigment, the darker the color can be. Therefore, the design portion 253a in the first area 250a can display the design darker than the design portion 253b in the second area 250b. Here, the concentration of the pigment contained in the pattern portion 253 refers to a value represented by a percentage of the amount of the pigment in the total solid content of the pattern portion 253 including the pigment and the binder resin. As a specific example, the amount of the pigment in the total solid content of the pattern portion 253a in the first region 250a is 3% by mass to 40% by mass, and the pigment in the total solid amount of the pattern portion 253b in the second region 250b The amount is 1% by mass or more and 38% by mass or less.

Furthermore, as shown in FIG. 25 and FIG. 26, when the design displayed by the pattern portion 253 is represented by the halftone dot 260, the area ratio of the halftone dot 260a of the pattern portion 253a in the first region 250a is the second The area ratio of the halftone dot 260b of the pattern portion 253b in the area 250b is larger than that of the area 250b. Here, the area ratio of halftone dots refers to the ratio of the area in which halftone dots are formed per unit area, and the unit can be% as an example. In FIG. 25 and FIG. 26, each dot 260 is represented by a circle. As the area ratio of the halftone dots 260 is larger, the design represented by the halftone dots can be displayed darker. Therefore, the design portion 253a in the first area 250a can display the design darker than the design portion 253b in the second area 250b. As a specific example, the area ratio of halftone dots 260a of the pattern portion 253a in the first area 250a is 50% or more and 99.5% or less, and the area ratio of halftone dots 260b of the pattern portion 253b in the second area 250b is 55 % Or more and 99.9% or less. The size of each halftone dot 260 is, for example, 1 [mu] m ² or more 40000Myuemu ² or less.

The shielding portion 255 is disposed between the design portion 253 and the base portion 251, and covers the design portion 253 from the side of the base portion 251. In FIG. 22 and FIG. 24, it arrange | positions between the shielding part 255a arrange | positioned between the pattern part 253a and the base material part 251 in 1st area | region 250a, and the pattern part 253b and base material part 251 in 2nd area | region 250b. And the shielded portion 255b is shown. However, the shielding portion 255 may be provided only in the first region 250 a and may not be provided in the second region 250 b. In other words, the shielding portion 255 is provided at least in the first region 250a. Preferably, the shielding part 255 is provided only at a position facing the design part 253. The shielding unit 255 has a function of absorbing light so that the image light from the display device 240 does not enter the design unit 253. The shielding unit 255 may include, for example, light absorbing particles in the binder resin. Examples of light absorbing particles include black pigments such as carbon black and titanium black. Further, in the example shown in FIG. 24, the thickness Ta of the shielding portion 255a in the first region 250a is thicker than the thickness Tb of the shielding portion 255b in the second region 250b. When the thick shield part 255 covers the design part 253, the design of the design part 253 can be displayed dark. Therefore, the design portion 253a in the first area 250a can display the design darker than the design portion 253b in the second area 250b. As a specific example, the thickness Ta of the shielding portion 255a in the first region 250a is 1 μm to 20 μm, and the thickness Tb of the shielding portion 255b in the second region 250b is 0.5 μm to 20 μm.

The transmissive portion 257 is a non-formation portion of the pattern portion 253 in observation from the front of the decorative sheet 250, and can transmit image light from the display device 240. The transmitting portion 257 may be a hole or an air gap as in the illustrated example, but may be formed of, for example, a transparent resin. Further, the transmitting portion 257 formed of a transparent resin may cover the pattern portion 253 and the shielding portion 255. Such a transparent portion 257 can function as a transparent protective film that protects the design portion 253 and the shielding portion 255.

The term “transparent” means the transmittance at each wavelength when measured using a spectrophotometer (“UV-3100 PC” manufactured by Shimadzu Corporation, a product conforming to JIS K 0115) at a measurement wavelength of 380 nm to 780 nm. It means that the visible light transmittance specified as an average value of is 80% or more.

In the example shown in FIG. 22, the transmitting portion 257 is provided only in the first region 250a. However, the transmissive portion 257 may be provided in the second region 250b. The ratio of the transmitting portion 257 in the first region 250a is higher than the ratio of the transmitting portion 257 in the second region 250b. Here, the ratio of the transmission part is the ratio of the area in which the transmission part is formed per unit area. The ratio of the transparent portion 257 in the first region 250a is 50% or less so that the observer can clearly observe the design of the decorative sheet 250 in the image non-display state of the display device 240. preferable. In addition, the ratio of the transmitting portion 257 in the first region 250a is preferably 10% or more in order to transmit the image light in the image display state of the display device 240.

The transmissive portions 257 are preferably arranged in a direction that is not parallel to the arrangement direction of the pixels px of the display device 240 described above. In the present embodiment, as shown in FIG. 27, the transmitting portion 257 has a fifth direction d5 inclined by 30 ° with respect to the third direction d3 which is an arrangement direction of pixels, and 30 ° with respect to the fourth direction d4. It arranges along each of the inclined 6th direction d6. The transmitting portion 257 is, for example, a circle having a diameter D of 50 μm to 200 μm. Moreover, the space | interval P of the permeation | transmission part 257 arrange | positioned is 75 micrometers or more and 500 micrometers or less.

Next, the operation of the display apparatus with panel 210 according to the present embodiment will be described.

In a state where an image is displayed on the display surface 241 of the display device 240, the image light passes through the opening 237 of the panel member 230 and the transmitting portion 257 of the decorative sheet 250, and is observed by an external observer. An observer can observe the image light of sufficient brightness as the ratio of the permeation | transmission part 257 in 1st area | region 250a which covers the display surface 241 of the display apparatus 240 is 10% or more.

In addition, the design portion 253a in the first region 250a is covered from the side of the display device 240 by the shielding portion 255a. Therefore, the shielding part 255a prevents the image light from being incident on the design part 253a. For this reason, it is possible to prevent the image light from transmitting through the pattern portion 253a, and the design light represented by the pattern portion 253a and the image light being mixed and observed. That is, it is possible to effectively prevent the color reproducibility of the image from being degraded due to absorption of visible light in the specific wavelength range by the pattern portion 253a. Furthermore, when the shielding part 255a is provided only in the area facing the pattern part 253a, the shielding part 255a is prevented from blocking the image light transmitted through the transmitting part 257. That is, the image light can be efficiently used to display an image brightly.

Furthermore, as shown in FIG. 27, the transmitting portions 257 are arranged in a direction that is not parallel to the arrangement direction of the pixels px of the display device 240. Therefore, the periodic structure of the array of the pixels px of the display device 240 and the periodic structure of the array of the transmissive portions 257 do not easily interfere with each other, and it is possible to effectively suppress the observation of interference fringes with the image. From the viewpoint of making the interference fringes inconspicuous, the arrangement directions d5 and d6 of the transmission parts 257 are preferably inclined at an angle of 15 ° or more and 75 ° or less with respect to the arrangement directions d3 and d4 of the pixels px.

On the other hand, in the state where the image is not displayed on the display surface 241 of the display device 240, the design of the decorative sheet 250 is observed by the observer. In particular, when the visible light transmittance of the decorative sheet 250 is 50% or less, the observer can clearly observe the design of the decorative sheet 250. In particular, when the shielding portion 255 is provided only at a position facing the pattern portion 253, the shielding portion 255 is not observed by the observer, and the designability of the decorative sheet 250 is prevented by the shielding portion 255 Ru.

By the way, as described above, in the display apparatus with panel 610 having the conventional decorative sheet 650 shown in FIG. 29, the transmitting portion is provided only in the area facing the display surface of the decorative sheet 650, that is, only the first area 650a. The design of the decorative sheet 650 is thinned in the first region 650a. For this reason, the difference of the designability has arisen between the 1st field 650a and the 2nd field 650b.

On the other hand, in the display device with panel 210 having the decorative sheet 250 of the present embodiment, the L ^* a ^* b ^* in the first area 250a is the value of L ^* ₁ , a ^* , which is the value of L ^{* in} the color system. there ^a _^* 1, ^b _* and ^b _{* 1} are values of, ^L in the second region ^{^{^{_{250b * a * b * a *}}}} 2 is ^L _* 2, ^{a *} value is a value of ^{L *} in the color system And b ^* , b ^* ₂ , satisfy the following relationship.
((L ^* _1- L ^* ₂ ) ² + (a ^* _1- a ^* ₂ ) ² + (b ^* _1- b ^* ₂ ) ² ) ^1/2 ≦ 3
By satisfying this relationship, the color difference between the first area 250a and the second area 250b is hardly recognized by the observer. That is, it is possible to make it difficult to recognize the difference in design between the area facing the display surface 241 of the decorative sheet 250 and the area other than the area facing the display surface 241.

Even in the display device with panel 210 having the decorative sheet 250 of the present embodiment, the transmissive portion 257 is provided only in the first region 250a, so the first region 250a and the second region 250b are provided with the transmissive portion 257. If it is configured in the same manner except for the above, the design is displayed thinner overall in the first region 250a as compared to the second region 250b, and the above-mentioned relationship is not satisfied. Therefore, in order to satisfy the above-mentioned relationship, a device is made so that the design can be displayed so that the design portion 253a in the first region 250a is darker than the design portion 253b in the second region 250b.

For example, the thickness Ta of the shielding portion 255a in the first region 250a is thicker than the thickness Tb of the shielding portion 255b in the second region 250b, and the density of the pigment contained in the pattern portion 253a in the first region 250a is the second region Making the density higher than the density of the pigment contained in the design portion 253b at 250b, making the thickness Ha of the design portion 253a in the first region 250a be thicker than the thickness Hb of the design portion 253b in the second region 250b, the first region 250a The pattern ratio in the first area 250a by adopting any one or more of the area ratio of the halftone dots 260a of the pattern area 253a in the second region 250b being larger than the area ratio of the halftone dots 260b in the second region 250b. Displaying a design in which the part 253a is darker than the pattern part 253b in the second area 250b It can be. In this way, the above relationship can be fulfilled. These can be implemented at low cost as compared with forming the transmitting portion 257 in the second region 250b as well as the first region 250a. However, the conditions for the aforementioned relationship to be satisfied are not limited to these.

For example, the transmission part 257 is formed as follows. First, the design portion 253 and the shielding portion 255 are provided on the entire surface of the base portion 251. Next, a laser is irradiated to the position where the transmitting portion 257 on the base portion 251 is to be formed. The pattern portion 253 and the shielding portion 255 at the position where the laser is irradiated are removed. The position of the removed pattern portion 253 and the shielding portion 255 becomes the transmitting portion 257. In such a method of forming the transmission portion 257, the cost is increased in proportion to the area irradiated with the laser. Therefore, forming the transmitting portion 257 only in the first region 250a is less expensive than forming the transmitting portion 257 in the first region 250a and the second region 250b.

Alternatively, the transmission part 257 may be formed as follows. First, the design portion 253 and the shielding portion 255 are provided on the entire surface of the base portion 251. Next, a photoresist is applied to the side on which the design portion 253 and the shielding portion 255 are provided. Thereafter, a photomask provided with a hole at a position where the transmission portion 257 is to be formed is provided on the photoresist. UV light is emitted through the photomask. When irradiated with ultraviolet light, the photoresist dissolves in the developer. That is, the photoresist dissolves in the development process at the position where the transmission part 257 is to be formed. Next, it is immersed in an etching solution to remove the picture portion 253 and the shielding portion 255 at the position where the photoresist is removed. The position of the removed pattern portion 253 and the shielding portion 255 becomes the transmitting portion 257. In such a method of forming the transmitting portion 257, the cost increases in proportion to the size of the photomask used and the size of the ultraviolet irradiation device. Therefore, forming the transmitting portion 257 only in the first region 250a is less expensive than forming the transmitting portion 257 in the first region 250a and the second region 250b.

In addition, the formation method of the permeation | transmission part 257 mentioned above is an illustration, and the permeation | transmission part 257 may be formed by another method.

As described above, the decorative sheet 250 according to the present embodiment includes the first area 250a covering at least the display surface 241 of the display device 240, and the second area 250b adjacent to the first area 250a. A transmitting portion 257 which is a non-forming portion of the pattern portion 253 provided in at least the first region 250a, and the ratio of the transmitting portion 257 in the first region 250a is the second region higher than the proportion of the transmission unit 257 at 250b, with ^a _* 1, ^{b *} values ^L * ^a * ^{b *} is ^L _* 1, ^{a *} value is a value of ^{L *} in the colorimetric system in the first region 250a there ^{^b} _{_* 1,} ^b _* ₂ is ^a _* 2, ^{b *} values are ^{^{^{^{_{L * a * b * L *}}}}} 2, a * value is a value of ^{L *} in the color system in the second region 250b But satisfy the following relationship.
((L ^* _1- L ^* ₂ ) ² + (a ^* _1- a ^* ₂ ) ² + (b ^* _1- b ^* ₂ ) ² ) ^1/2 ≦ 3
According to such a decorative sheet 250, the color difference between the first area 250a facing the display surface 241 and the second area 250b adjacent to the first area 250a can be satisfied by satisfying the above-mentioned relationship. It will hardly be recognized by the observer. Also, the above relationship can be satisfied at low cost. That is, it is possible to make it difficult to recognize the difference in design between the area facing the display surface 241 of the decorative sheet 250 and the area other than the area facing the display surface 241 at low cost.

Note that various modifications can be made to the embodiment described above.

For example, in the embodiment described above, the decorative sheet 250 includes the base portion 251. However, the base material part 251 may be removed by making the decoration sheet 250 peel etc. in the manufacturing process. In this case, the transmitting portion 257 may be formed as a through hole of the decorative sheet 250.

Further, in the embodiment described above, as shown in FIG. 22, the design portion 253 of the decorative sheet 250 is disposed on the side where the display device with panel 210 is observed. However, as shown in FIG. 28, the base portion 251 of the decorative sheet 250 may be disposed on the side where the display device with panel 210 is observed. When the base portion 251 of the decorative sheet 250 is disposed on the side where the display device with a panel 210 is observed, foreign matter is less likely to be attached to the transmission portion 257 and interfere with image light.

The display device with panel 210 described above is used, for example, as an interior member or exterior member 202 of a mobile body 201 such as a vehicle such as a car or a railway, an aircraft, a ship, or a spacecraft. As a specific example, the display with panel 210 is used for a center console of a car or a door trim. Alternatively, the display device with panel 210 may be incorporated into an interior member or exterior member of a building, an electronic device, furniture or an electric appliance and used.

The respective aspects of the first invention, the second invention and the third invention are not limited to the individual embodiments described above, but also include various modifications that can be conceived by those skilled in the art. The effects of the first invention, the second invention, and the third invention are not limited to the above-described contents. That is, various additions, modifications and changes can be made without departing from the conceptual idea and spirit of the first invention, the second invention and the third invention derived from the contents defined in the claims and equivalents thereof. Partial deletion is possible.

Claims

A display device having a display surface;
A panel member arranged to form a boundary with the display surface in observation from a direction normal to the display surface;
An optical sheet arranged to cover the boundary between the display surface and the panel member;
The panel-mounted display device, wherein the optical sheet includes a light transmitting portion and a light absorbing portion arranged in a direction parallel to the display surface.
The panel member has an opening,
The display with a panel according to claim 1, wherein the display surface is positioned in the opening in observation from a direction normal to the display surface.
The display device with panel according to any one of claims 1 and 2, wherein the panel member includes a base portion and a decorative portion provided on the base portion.
The display device with panel according to any one of claims 1 to 3, wherein the light absorbing portion includes a binder resin and light absorbing particles.
The display device with panel according to claim 4, wherein a refractive index of the binder resin is equal to or less than a refractive index of the resin of the light transmitting portion.
The display device with panel according to claim 4, wherein the binder resin is a resin of the same type as the resin of the light transmitting portion.
The light transmitting portions are arranged in a first direction,
The light absorbing portions are alternately arranged in the first direction and the light transmitting portions,
The display device with panel according to any one of claims 1 to 6, wherein the light transmitting portion and the light absorbing portion extend linearly in a direction not parallel to the first direction.
It further comprises a second optical sheet arranged to cover the boundary between the display surface and the panel member,
The second optical sheet includes a second light transmitting portion arranged in a second direction not parallel to the first direction, and a second light absorbing portion alternately arranged in the second direction with the second light transmitting portion. Part, and
The display device with panel according to claim 7, wherein the second light transmitting portion and the second light absorbing portion extend linearly in a direction not parallel to the second direction.
The panel according to any one of claims 1 to 6, wherein the optical sheet includes a sheet material forming the light absorbing portion, and a hole provided in the sheet material and forming the light transmitting portion. Display device.
A panel member arranged to form a boundary with the display surface in observation from a direction normal to the display surface of the display device;
An optical sheet arranged to cover the boundary between the display surface and the panel member;
The optical sheet includes a light transmitting portion and a light absorbing portion arranged in a direction parallel to the display surface.
A display device having a display surface;
A panel member arranged to form a boundary with the display surface in observation from a direction normal to the display surface;
A dark sheet disposed so as to cover the boundary between the display surface and the panel member;
The panel attached display device, wherein L * 1, which is the value of L * in the L * a * b * color system of the dark sheet measured by transmitted light, is 20 or less.
The b * 1 is the dark color sheet L * a * b * a * 1 and b * values are values of a * in the color system is determined by the transmitted light satisfy the following relationship, according to claim 11 The display device with a panel described in.
((A * 1) 2 + (b * 1) 2) 1/2 ≦ 48
The panel attached display device according to claim 11, wherein the dark sheet contains a black pigment.
The panel attached display device according to any one of claims 11 to 13, wherein the visible light transmittance of the dark sheet is 40% or more and 60% or less.
L * a * b * Table of the display device with the panel measured by reflected light of a portion where the display surface of the display device and the dark sheet overlap in observation from the normal direction to the display surface L * a which is the value of L * in the color system, and the reflected light of the portion where the panel member and the dark sheet overlap each other In the L * a * b * color system of the display device with the panel L * with the value a is L * b, satisfies the following relationship, the panel-equipped display device according to any one of claims 11 to 14.
│ L * a- L * b │ ≦ 3
A panel member arranged to form a boundary with the display surface in observation from a direction normal to the display surface of the display device;
A dark sheet disposed so as to cover the boundary between the display surface and the panel member;
A panel in which L * 1 , which is a value of L * in the L * a * b * color system of the dark sheet measured by transmitted light, is 20 or less.
A decorative sheet including at least a first area covering a display surface of a display device, and a second area adjacent to the first area,
And a transmissive portion which is a non-formed portion of the pattern portion provided in at least the first region,
The ratio of the transmission part in the first region is higher than the ratio of the transmission part in the second region,
The first 1 L in the region * a * b * and b * 1 is a * 1, b * values are L * 1, a * value is a value of L * in the color system, the second region in L * a * b * b * 2 is a * 2, b * values are L * 2, a * value is a value of L * in the color system satisfies the following relationship, decorative Sheet.
((L * 1- L * 2 ) 2 + (a * 1- a * 2 ) 2 + (b * 1- b * 2 ) 2 ) 1/2 ≦ 3
The decorative sheet according to claim 17, wherein a proportion of the transmission part in the first region is 10% or more and 50% or less.
The decorative sheet according to claim 17, further comprising a shielding part covering the pattern part in at least the first area.
The decorative sheet according to claim 19, wherein a thickness of the shielding portion in the first region is thicker than a thickness of the shielding portion in the second region.
The decorative sheet according to any one of claims 17 to 20, wherein the concentration of the pigment contained in the pattern portion in the first region is higher than the concentration of the pigment contained in the pattern portion in the second region.
The decorative sheet according to any one of claims 17 to 21, wherein a thickness of the pattern in the first region is thicker than a thickness of the pattern in the second region.
The decorative sheet according to any one of claims 17 to 22, wherein an area ratio of halftone dots of the pattern portion in the first region is larger than an area ratio of halftone dots of the pattern portion in the second region.
A display device having a display surface;
The display apparatus with a decorating sheet | seat provided with the decorating sheet as described in any one of the Claims 17-23 provided facing the said display surface.
The display device with a decorative sheet according to claim 24, wherein the transmissive portions are arranged in a direction not parallel to the arrangement direction of the pixels of the display device.
A mobile body comprising the display device with a panel according to any one of claims 1 to 9 and 11 or the display device with a decorative sheet according to any one of claims 24 or 25. Interior and exterior members.
A movable body comprising the interior and exterior members according to claim 26.