JP5194592B2 - Display device and electronic device - Google Patents

Description

  The present invention relates to a technique for displaying an image using an electro-optical layer such as a light emitting layer or a liquid crystal layer.

In a display body that uses the reflected light from the reflective layer formed on the back side of the electro-optic layer to emit light to the viewing side for display, external light incident on the display body from the viewing side is reflected by the reflective layer for observation. There is a problem in that the view on the viewing side of the display body is superimposed on the original image (the background is reflected). Patent Document 1 and Patent Document 2 disclose a technique for suppressing the reflection of a background by a circularly polarizing plate disposed on the observation side of the electro-optic layer.
Japanese Patent Laid-Open No. 8-322138 Japanese Patent Laid-Open No. 9-127858

  By the way, the display body is required to have a large screen. However, in order to realize an increase in the size of the display body, it is necessary to solve various problems such as an increase in manufacturing cost, a decrease in yield, an increase in size of a drive circuit and an increase in power consumption. In view of the above circumstances, an object of the present invention is to solve the problem of expanding the apparent display area without increasing the size of the display body.

In order to solve the above-described problems, a display device according to the present invention includes a first display area including an electro-optic layer and a light reflection layer that reflects light emitted from the electro-optic layer to the observation side. The display body and the second display body, and the display area of the first display body and the display area of the second display body are provided with a plurality of openings so as to be light-shielding. The exterior body, the display area of the first display body, the display area of the second display body, and the exterior body are provided so as to cover and enter from the observation side by the light reflecting layer or the exterior body An anti-reflection plate for suppressing emission of reflected external light to the observation side, the first display body and the second display body do not have a portion in contact with each other, and the exterior body is , Provided to cover the first display body and the second display body. In addition, a light shielding layer is provided on each of the peripheral portions of the first display body and the second display body, and on each peripheral portion of the first display body and the second display body. The provided light shielding layer has a portion that overlaps with the exterior body in a planar manner, and the reflectance (%) when the measurement light is irradiated to the exterior body through the antireflection plate, and the first The maximum value of the difference value at the same wavelength as the reflectance (%) when the display light of the display body and the display area of the second display body is irradiated with the measurement light through the antireflection plate is the measurement value The light wavelength is 3% or less within a range of 500 nm to 600 nm.
In order to solve the above problems, a display device according to the present invention includes a first substrate, a light reflecting layer provided on the first substrate, and a first substrate provided on the light reflecting layer. An electrode, an electro-optical layer provided on the first electrode, a second electrode provided on the electro-optical layer, and a second substrate provided to face the first substrate A first display body and a second display body each of which includes: a light-shielding exterior body provided on a peripheral portion of the first display body and the second display body; A first display body, a second display body, and an antireflection plate provided on the exterior body, and the second substrate is colored to transmit light emitted from the electro-optic layer And a light-shielding layer that partitions the colored layer and shields light emitted from the electro-optic layer, and The body overlaps the light shielding layer in a planar manner, the first display body and the second display body do not have a portion in contact with each other, and the exterior body is the first display body. And the second display body so that the antireflection plate is incident on the antireflection plate side and reflected by the light reflection layer or the exterior body. Reflection (%) when the measurement light is applied to the exterior body through the antireflection plate, and the first display body and the second display body are suppressed. On the other hand, the maximum value of the difference value at the same wavelength as the reflectance (%) when the measurement light is irradiated through the antireflection plate is 3% within the range where the wavelength of the measurement light is 500 nm or more and 600 nm or less. It is characterized by the following.
In order to solve the above-described problems, a display device according to the present invention includes a plurality of display bodies each including a light reflecting layer that reflects light emitted from an electro-optic layer on an observation side, and each display region. A plate-shaped exterior body having an edge region including a portion (for example, the portion A2a in FIG. 3 or the portion A2b in FIG. 4) positioned outside the peripheral edge of the display body, and continuous over the display area and the edge area of the plurality of display bodies And an anti-reflection plate that suppresses the emission of external light, which is incident from the observation side and reflected by the light reflection layer or edge region of each display body, to the observation side. In the above configuration, since the antireflection plate is continuous over the plurality of display regions and the edge region, the boundary between each display body and the exterior body is not conspicuous. Therefore, it is possible to enlarge the apparent display area without increasing the size of each display. The display device according to the present invention is employed in various electronic devices.

In a preferred aspect of the present invention, each of the first display body and the second display body includes a first electrode, a second electrode, and between the first electrode and the second electrode. A plurality of pixels having the electro-optic layer provided on the substrate.
In a preferred embodiment of the present invention, the plurality of display bodies are arranged so as to be spaced apart from each other, and the exterior body includes a portion (for example, a portion A2b in FIG. 4) located in the gap between the adjacent display bodies. According to the above aspect, the area of the apparent display area can be further expanded by separating the display bodies from each other without conspicuous the boundary between the adjacent display bodies and the exterior body between them. Can do.

  In a preferred embodiment of the present invention, the reflectance (%) when the measurement region is irradiated with the measurement light on the edge region of the exterior body, and the display region of each display body is interposed with the antireflection plate. The maximum value of the difference value (for example, the difference value Δ in FIG. 5) at the same wavelength as the reflectance (%) when the measurement light is irradiated is 3% within the range where the wavelength of the measurement light is 500 nm or more and 600 nm or less. It is as follows. According to this aspect, the boundary between each display body and the exterior body can be made particularly inconspicuous.

  In a specific aspect of the present invention, the exterior body is a plate material in which a plurality of openings are formed so that the display area of each display body is positioned inside the inner peripheral edge. Further, the display body includes a light shielding layer that is formed so that the outer peripheral edge is positioned outside the inner peripheral edge of the exterior body and shields the gap between the pixels. According to this aspect, since the outer periphery of the light shielding layer is located outside the inner periphery of the exterior body, there is a gap (for example, the region GB in FIG. 6) between the inner periphery of the exterior body and the outer periphery of the light shielding layer. Compared with the configuration, it is possible to make the boundary between each display body and the exterior body more inconspicuous.

  In a preferred aspect of the present invention, the exterior body is bonded to the observation side surface of each of the plurality of display bodies, and the antireflection plate is bonded to the observation side surface of the exterior body. In this aspect, since the antireflection plate is separated from the surface on the observation side of each display body, heat transfer from the display body to the antireflection plate is suppressed. Therefore, deterioration of the antireflection plate due to heating is suppressed. However, in the configuration in which the antireflection plate is separated from the observation side surface of the display body, light reflection occurs on the observation side surface of each display body and the back side surface of the antireflection plate. Therefore, the display device according to a preferred aspect of the present invention includes an AR coating layer formed on at least one of a surface facing each display body in the antireflection plate and a surface facing each antireflection plate in each display body. (For example, a second embodiment described later). Further, the display device according to another aspect includes a light-transmitting filler filled in a space between the observation-side surface of each display body and the antireflection plate (for example, a third embodiment described later). . According to each of the above embodiments, there is an advantage that reflection on the observation side surface of each display body and the back side surface of the antireflection plate is suppressed.

  In a preferred aspect of the present invention, the exterior body is a plate-like member disposed on the back side of the plurality of display bodies (for example, a fourth embodiment described later). According to this aspect, there is an advantage that the exterior body and the plurality of display bodies are easily joined and the mechanical strength of each display body is reinforced by the exterior body.

<A: First Embodiment>
FIG. 1 is an exploded perspective view showing the configuration of the display device 100 according to the first embodiment of the present invention. As shown in FIG. 1, the display device 100 is a planar structure in which an exterior body 40 and an antireflection plate 60 are stacked on a display body DA and a display body DB that are arranged apart from each other in the same plane. is there. Each of the display body DA and the display body DB displays various images by a plurality of pixels P arranged in a plane in the display area A1. In the following description, when it is not necessary to distinguish the display body DA and the display body DB from each other, the display body DA and the display body DB are commonly described as “display body D”.

  FIG. 2 is a conceptual diagram showing a planar relationship between the respective parts of the display device 100. However, the antireflection plate 60 is not shown in FIG. 3 is a cross-sectional view taken along line IIIa-IIIa or IIIb-IIIb in FIG. 2 (that is, a cross-sectional view in the vicinity of the periphery of the outer package 40), and FIG. 4 is taken from line IV-IV in FIG. FIG. 6 is a sectional view (that is, a sectional view in the vicinity of a gap between the display body DA and the display body DB). As shown in FIG. 3 and FIG. 4, each display body D includes a first substrate 10 and a second substrate 20 joined by a light transmissive adhesive layer 25. The second substrate 20 is located on the observation side of the first substrate 10 (that is, the viewer side viewing the display image by the display body D). A plurality of light reflecting layers 11 corresponding to the respective pixels P are formed on the surface of the first substrate 10 facing the second substrate 20 so as to be separated from each other. Each light reflecting layer 11 is a film body formed of a light reflecting material. A configuration in which the light reflecting layer 11 is continuous over the entire display area A1 is also employed.

  On the surface of the first substrate 10, a light-transmissive insulating layer 12 that covers each light reflecting layer 11 is formed. A plurality of first electrodes 14 corresponding to each pixel P are formed on the surface of the insulating layer 12 so as to be separated from each other. Each first electrode 14 is an electrode formed of a light-transmitting conductive material typified by ITO (Indium Tin Oxide). As shown in FIGS. 3 and 4, the light reflecting layer 11 and the first electrode 14 overlap when viewed from the direction perpendicular to the first substrate 10.

  A partition layer (bank layer) 13 is formed on the surface of the insulating layer 12. The partition layer 13 is an insulating layer having a shape (lattice shape) that partitions the space on the surface of the first substrate 10 for each pixel P. A light emitting layer 15 is formed of an organic EL (Electroluminescence) material in a space surrounded by the inner peripheral surface of the partition wall layer 13 and having the first electrode 14 as a bottom surface. The partition layer 13 and the light emitting layer 15 are covered with the second electrode 16. The second electrode 16 is a light transmissive conductive film continuous over a plurality of pixels P. The light emitting layer 15 emits white light having a light amount corresponding to the electric energy applied from the first electrode 14 (anode) and the second electrode 16 (cathode). The light emitted from the light emitting layer 15 to the observation side and the reflected light from the light reflection layer 11 are transmitted through the second electrode 16 and emitted to the observation side, whereby various images are displayed. Each element on the first substrate 10 is sealed by a light-transmitting sealing body 17.

  The second substrate 20 is a light-transmitting plate material in which a light shielding layer 21 and a plurality of colored layers 22 (22R, 22G, 22B) are formed on the surface facing the first substrate 10. The light shielding layer 21 is formed in a lattice shape in which regions corresponding to the respective pixels P (regions overlapping the first electrode 14 and the light reflecting layer 11) are opened, and shields the gaps between the respective pixels P. As shown in FIGS. 2 and 3, the outer dimension of the light shielding layer 21 is larger than the display area A1. Therefore, the outer peripheral edge Q1 of the light shielding layer 21 is located outside the display area A1.

  Each colored layer 22 is a light-transmitting film body colored in any of a plurality of display colors (red (22R), green (22G), and blue (22B)), and inside each opening of the light shielding layer 21. Formed. Accordingly, the plurality of colored layers 22 are arranged in a planar shape within the display area A1. The light emitted from the light emitting layer 15 is transmitted through each colored layer 22 and then emitted to the observation side, so that the observer perceives a color image.

  As shown in FIGS. 1 and 2, the exterior body 40 is an opaque plate material in which rectangular openings 42 are formed at two locations corresponding to the display body DA and the display body DB. The exterior body 40 is bonded to the surface on the observation side of each display body D (that is, the surface on the observation side of the second substrate 20) with a double-sided tape 30. For example, an aluminum plate material painted in black is suitably used as the exterior body 40.

  As shown in FIGS. 2 and 3, the exterior body 40 and each display body D are fixed so that the outer peripheral edge R 1 of the exterior body 40 is positioned outside the peripheral edge Q 2 of each display body D. Therefore, the surface (hereinafter referred to as “edge region”) A2 on the observation side of the exterior body 40 includes a portion A2a located outside the peripheral edge Q2 of each display body D as shown in FIG. Further, in this embodiment, since the display body DA and the display body DB are separated from each other, the edge region A2 includes a portion A2b located in the gap between the display body DA and the display body DB as shown in FIG. Including. Further, as shown in FIGS. 2 to 4, the display area A1 of each display body D is located inside the opening 42 (inner peripheral edge R2 of the exterior body 40) corresponding to the display body D, and each display body The outer peripheral edge Q1 of the D light shielding layer 21 is located outside the opening 42 corresponding to the display body D (the inner peripheral edge R2 of the exterior body 40).

  As shown in FIGS. 1 and 3, the antireflection plate 60 is a rectangular plate formed in a form (dimensions and shape) that matches the outer peripheral edge R1 of the exterior body 40, and includes a display body DA and a display body DB. The total area is larger than the total area. The antireflection plate 60 is joined to the edge region A2 so that the peripheral edge of the antireflection plate 60 and the outer peripheral edge R1 of the exterior body 40 coincide. Therefore, the antireflection plate 60 is continuous over each display area A1 and the edge area A2 so as to cover both the display body DA and the display body DB exposed from each opening 42 of the exterior body 40 and the exterior body 40. . As shown in FIGS. 3 and 4, the exterior body 40 and the double-sided tape are provided between the back surface of the antireflection plate 60 and the observation surface of each display body D in the region inside the opening 42. A space V having an interval corresponding to a thickness of 30 is interposed. As described above, since the antireflection plate 60 and the display body D are separated from each other with the space V interposed therebetween, the heat generated in the display body D is compared with the configuration in which the antireflection plate 60 and the display body D are in close contact with each other. It is difficult to transmit to the antireflection plate 60. Therefore, there is an advantage that deterioration of the circularly polarizing plate 64 due to heating can be suppressed.

  As shown in FIG. 1, the antireflection plate 60 includes a support body 62 and a circularly polarizing plate 64. The support 62 is a light transmissive plate that reinforces the mechanical strength of the circularly polarizing plate 64. A plate material made of glass or resin (for example, acrylic resin or polycarbonate resin) is suitably used as the support 62. As shown in FIGS. 3 and 4, the circularly polarizing plate 64 includes a retardation plate 641 attached to the surface of the support 62 on the observation side, and a polarizing plate 642 attached to the surface of the retardation plate 641. Consists of. Therefore, even when external light enters the display device 100 from the observation side and is reflected by the surface of the light reflection layer 11 or the edge region A2 of the exterior body 40, the emission of the reflected light to the observation side is suppressed. Is done.

  FIG. 5 is a graph showing characteristics of reflected light emitted to the observation side when each portion of the display device 100 is irradiated with visible light having a predetermined spot diameter (hereinafter referred to as “measurement light”) from the observation side. In the figure, the horizontal axis represents the wavelength (nm) of the measurement light, and the vertical axis represents the reflectance (that is, the ratio (%) of the amount of reflected light to the amount of measurement light).

  The characteristic C1 in FIG. 5 is that, in the configuration excluding the antireflection plate 60, the light emitting layer 15 of all the pixels P is completely turned off, and the measurement light is transmitted into the display area A1 of the display body D (DA, DB). It is the result of the measurement when irradiated. The display body DA and the display body DB have equivalent characteristics (C1). On the other hand, the characteristic C2 is that, in the configuration of the present embodiment in which the antireflection plate 60 is installed, the light emitting layer 15 of all the pixels P is completely turned off, and the measurement light is transmitted into the display area A1 through the antireflection plate 60. It is the result of the measurement when irradiated. As understood from the comparison between the characteristic C1 and the characteristic C2, the incident light from the observation side with respect to the display device 100 is reflected by the element (particularly the light reflection layer 11) of each display body D and is emitted to the observation side. The amount of light is sufficiently suppressed by the antireflection plate 60. Therefore, it is possible to suppress the reflection of the background.

  The characteristic C3 in FIG. 5 is the result of measurement when the edge region A2 of the exterior body 40 is irradiated with measurement light through the antireflection plate 60 under the configuration of the present embodiment in which the antireflection plate 60 is installed. As understood from the comparison between the characteristics C2 and the characteristics C3, in this embodiment, the light reflection characteristics in the edge area A2 of the exterior body 40 and the light reflection characteristics in the display area A1 of each display body D substantially coincide. Thus, the optical characteristics of each element of the edge region A2 of the exterior body 40 and the display body D are selected. More specifically, the reflected light is measured by individually irradiating each of the edge area A2 of the exterior body 40 and the display area A1 of the display body D, and the same wavelength is measured when irradiating each area. When the difference value Δ of the reflectance is calculated, the outer package 40 has a maximum difference value Δ of 3% or less (more preferably 1% or less) in the wavelength range R of 500 nm to 600 nm. The optical characteristics (more specifically, materials and processing methods) of each element of the edge region A2 and the display body D are selected. For example, the exterior body is obtained by applying a coating material having optical characteristics satisfying the above conditions for the reflectance measured in advance in the display area A1 of each display body D to the surface (edge area A2) of the plate material. 40 is created.

  As described above, in this embodiment, the antireflection plate 60 in a form (size and shape) continuous over the display area A1 and the edge area A2 is installed so as to cover both the exterior body 40 and each display body D. Is done. Therefore, not only the reflection of the background is suppressed, but also the exterior body 40 (partial) compared to a configuration in which the antireflection plate 60 is not installed or a configuration in which the antireflection plate 60 overlaps only the display area A1 of each display body D. It is possible to make the boundary between A2a and the portion A2b) and the display body D inconspicuous. Particularly in the present embodiment, the characteristics of the exterior body 40 and each display body D are selected so that the light reflection characteristics (reflectance) are substantially the same in the edge area A2 and the display area A1, and thus the above effects are exceptional. Become prominent. Then, since the boundary between the exterior body 40 and the display body D becomes unclear, the observer can continuously display the display area of the display device 100 to the vicinity of the outer peripheral edge R1 of the exterior body 40 (the entire area of the antireflection plate 60). Perceive as if you were doing. That is, in this embodiment, the apparent display area can be increased without increasing the size of the display device 100.

  When the entire display area A1 is caused to emit light, the boundary between each display area A1 and the non-light emitting edge area A2 is perceived by the user. An image in which a subject is placed in the center of each display region A1 with black as the background when the light emitting layer 15 is turned off (that is, the non-light emitting region other than the subject in the display region A1 has optical characteristics) This is particularly effective when displaying an image that is aligned with the edge region A2.

  In the above description, the measurement result when the measurement light is irradiated into the display area A1 is exemplified as the characteristic C2. However, the area outside the display area A1 and inside the opening 42 of the exterior body 40 (light shielding layer 21). The result of measurement when GA is irradiated with measurement light is substantially equivalent to the characteristic C2. Accordingly, the optical characteristics of the exterior body 40 and each display body D may be selected so that the light reflection characteristics of the region GA and the light reflection characteristics of the edge region A2 of the exterior body 40 substantially coincide.

  In the configuration of FIG. 2, the outer peripheral edge Q1 of the light shielding layer 21 is located outside the opening 42 of the exterior body 40, but the outer peripheral edge Q1 of the light shielding layer 21 is the opening of the exterior body 40 as shown in FIG. A configuration located inside the portion 42 (inner peripheral edge R2) is also employed. The characteristic C4 in FIG. 5 is the result of measuring the reflectance by irradiating the region GB between the outer peripheral edge Q1 of the light shielding layer 21 and the inner peripheral edge R2 of the exterior body 40 in the configuration of FIG.

  In the region corresponding to the region GB in the first substrate 10, wiring (not shown) for supplying a drive signal and a power supply potential is formed in the display region A1, and the characteristic C4 of the region GB is shown in FIG. As shown in FIG. 6, the characteristic C3 of the edge region A2 of the outer package 40 and the characteristic C2 of the display region A1 are different. Therefore, in the configuration of FIG. 6, the effect that the boundary between the exterior body 40 and each display body D is not conspicuous as compared with the configuration in which the antireflection plate 60 is excluded (characteristic C1) is certainly achieved. There is a high possibility that the boundary is perceived as compared with the configuration of FIG. That is, in the configuration of FIG. 2, since the outer peripheral edge Q1 of the light shielding layer 21 is located outside the inner peripheral edge R2 of the outer package 40, the boundary between the outer package 40 and the display body D is compared with the configuration of FIG. There is an advantage that it doesn't stand out.

<B: Second Embodiment>
Next, a second embodiment of the present invention will be described. In addition, about the element in which an effect | action and a function are equivalent to 1st Embodiment in each following form, the same code | symbol as the above is attached | subjected and each detailed description is abbreviate | omitted suitably.

  FIG. 7 is a cross-sectional view showing the configuration of the display device 100 according to the second embodiment of the present invention. As shown in the figure, an AR (Anti Reflection) coat layer 70 (70A, 70B, 70C) for suppressing reflection on the surface of the light transmissive element of the display device 100 that is in contact with air. Is formed. More specifically, an AR coating layer 70A is formed on the observation-side surface of the antireflection plate 60 (circularly polarizing plate 64), and an AR coating layer 70B is formed on the back surface of the antireflection plate 60 (support 62). Is formed. Further, an AR coating layer 70C is formed on the surface on the observation side of each display D (second substrate 20).

  In the configuration of the first embodiment, since the surface on the back side of the antireflection plate 60 and the surface on the observation side of the display body D are in contact with air, the emitted light from the light emitting layer 15 is easily reflected on the surface. On the other hand, in the present embodiment, since the reflection on the surface on the back side of the antireflection plate 60 and the surface on the observation side of each display body D is suppressed by the AR coating layer 70 (70B, 70C), the light emitting layer 15 It is possible to increase the utilization efficiency of the emitted light. Further, since the AR coating layer 70A is also formed on the observation-side surface of the antireflection plate 60, there is an advantage that reflection of the background due to reflection on the surface is effectively prevented.

<C: Third Embodiment>
FIG. 8 is a cross-sectional view showing the configuration of the display device 100 according to the third embodiment of the present invention. As shown in the figure, the surface on the back side of the antireflection plate 60 (support 62), the surface on the observation side of each display D (second substrate 20), the inner peripheral surface of the opening 42 of the exterior body 40, and In the space V surrounded by, a light transmissive filler 75 is enclosed. The filler 75 is made of, for example, a resin material. The refractive index of the filler 75 is equal to the refractive index of at least one of the support body 62 and the second substrate 20.

  According to the above configuration, the difference in refractive index between the inside of the space V and the support body 62 or the second substrate 20 is reduced as compared with the configuration in which air exists in the space V. Light reflection on the back side surface and the observation side surface of the display D is suppressed. Therefore, it is possible to improve the utilization efficiency of the emitted light from the light emitting layer 15 regardless of the configuration in which the AR coating layers 70B and 70C in the second embodiment are omitted. 8 may be provided with the AR coating layers 70B and 70C shown in FIG.

<D: Fourth Embodiment>
FIG. 9 is a cross-sectional view showing the configuration of the display device 100 according to the fourth embodiment. As shown in FIG. 9, the exterior body 40 in this embodiment is a single plate material disposed on the back side of the display body D1 and the display body D2. No opening is formed in the outer package 40. The surface on the back side of each display body D (first substrate 10) is bonded to the surface of the exterior body 40. Of the surface on the observation side of the outer package 40, the region outside the peripheral edge Q2 of each display body D is the edge region A2. The light shielding layer 21 of the display body D is formed over the entire area of the second substrate 20.

  The antireflection plate 60 is installed so as to be continuous over the edge area A2 and the display area A1, and covers the exterior body 40 and the plurality of display bodies D. Further, as in the first embodiment, the edge region A2 of the exterior body 40 and the light reflection characteristics in the edge region A2 of the exterior body 40 and the light reflection characteristics in the display area A1 of the display body D are substantially matched. The optical characteristics of each element of the display body D are selected. Therefore, the same effects as those of the first embodiment can be obtained in this embodiment. Furthermore, according to this embodiment, there is an advantage that the work of joining the exterior body 40 and the plurality of display bodies D is facilitated and the mechanical strength of each display body D is reinforced by the exterior body 40. Note that the AR coating layer 70 (70A, 70B, 70C) of the second embodiment and the filler 75 of the third embodiment may be employed in the display device 100 of the present embodiment.

<E: Modification>
Various modifications can be made to each of the above embodiments. An example of a specific modification is as follows. Two or more aspects may be arbitrarily selected from the following examples and combined.

(1) Modification 1
The form and position of the exterior body 40 are not limited to the above examples. For example, as shown in FIG. 10, a plurality of openings 42 having dimensions that substantially match (or slightly larger) the outer shape of each display body D are formed in the exterior body 40, and the side end surfaces and openings of each display body D are formed. You may arrange | position the display body D inside the opening part 42 so that the internal peripheral surface of 42 may oppose. That is, the edge region A2 of the exterior body 40 is located only outside the peripheral edge Q2 of the display body D. Furthermore, as shown in FIG. 10, according to the configuration in which the observation-side surface of the display body D (second substrate 20) and the edge region A2 are positioned in the same plane, the antireflection plate 60 is displayed as the exterior body 40. There is an advantage that the display device 100 can be easily and firmly joined to the body D and the display device 100 can be thinned.

(2) Modification 2
If the mechanical strength of the circularly polarizing plate 64 is ensured independently to the extent necessary for manufacturing and using the display device 100, a configuration in which the support 62 is omitted from the antireflection plate 60 is also employed. In order to prevent the circularly polarizing plate 64 from being damaged by the action of external force, a light-transmitting plate material may be disposed on the observation side of the circularly polarizing plate 64.

(3) Modification 3
A configuration in which the forms (dimensions and shapes) of the plurality of display bodies D are common is not essential in the present invention. That is, the size and shape of each display body D may be different for each display body D. Further, in each of the above embodiments, a configuration in which a plurality of display bodies D are separated from each other is illustrated, but a configuration in which each display body D is arranged without a gap (for example, on the side end surface between the display body D1 and the display body D2). A joined structure) is also suitable. However, according to the configuration of the first embodiment in which the respective display bodies D are arranged apart from each other, the apparent display area can be easily enlarged as compared with the configuration in which the respective display bodies D are in contact with each other. There exists an advantage that the aspect (for example, position) of arrangement | positioning of each display body D can be selected with a high degree of freedom.

(4) Modification 4
The mode of arrangement of the plurality of display bodies D is arbitrary. A specific arrangement mode of each display body D will be exemplified below. As will be understood from the following examples, since a plurality of display bodies D are arranged in the display device 100 according to the specific embodiment of the present invention, compared with a configuration using only one display body D, The degree of freedom in design of the display device 100 can be increased. The configuration illustrated in FIG. 11 to FIG. 13 is particularly suitable for displaying product images at various stores, for example.

  The number of display bodies D constituting the display device 100 is arbitrary. For example, as shown in FIG. 11, a configuration in which five display bodies D are arranged in a substantially cross shape is employed. The exterior body 40 (not shown in FIG. 11) and the antireflection plate 60 are formed into an appropriate shape that covers all the display bodies D.

  The plurality of display bodies D need not be arranged in parallel. For example, as shown in FIG. 12, a configuration in which a plurality of display bodies D are arranged in a curved shape along the wall surface of a structure (column body 35) such as a building is also employed. The display device 100 in FIG. 1 includes a plurality of display bodies D arranged on the side surface of a columnar column 35 along the circumferential direction, and an antireflection plate 60 formed into a curved surface along the side surface of the column 35. It comprises. In addition, illustration of the exterior body 40 is abbreviate | omitted in FIG.

  The plurality of display bodies D do not have to be located in the same plane. For example, as shown in FIG. 13, a plurality of display bodies D may be arranged so that the distance to the planar antireflection plate 60 is different for each display body D. As shown in the figure, the exterior body 40 is formed in a staircase shape.

(5) Modification 5
The light emitting layer 15 of the organic EL material is only an example of the electro-optical layer. With respect to the electro-optic layer applied to the display device 100 of each of the above forms, by distinguishing between a self-luminous type that emits light and a non-luminous type that changes the transmittance of external light (for example, a liquid crystal element), The distinction between the driven current driving type and the voltage driving type driven by applying a voltage is not questioned. Various electro-optical layers such as a light emitting layer, a liquid crystal layer, and an electrophoretic layer of an inorganic EL material are used in the display device of the present invention. In other words, the electro-optical layer is defined as a portion where optical characteristics such as luminance and transmittance are changed by supplying electric energy (for example, supplying current or applying voltage).

<F: Electronic equipment>
Next, an electronic apparatus using the display device according to the present invention will be described. FIG. 14 to FIG. 17 show forms of electronic devices that employ the display device 100 according to any of the forms described above.

  FIG. 14 is a conceptual diagram showing an aspect in which the display device of the present invention is adopted in an in-vehicle instrument (instrument panel) of an automobile. As shown in the figure, the vehicle-mounted instrument includes a display device 100 in which a display body DA and a display body DB are arranged in the horizontal direction, a drive circuit 82 (82A, 82B), and a control circuit 84. The drive circuit 82A displays the image instructed from the control circuit 84 on the display body DA. The drive circuit 82B displays the image instructed from the control circuit 84 on the display body DB. For example, the control circuit 84 displays the speed of the automobile on the display body DA, and displays a map created by a car navigation device (not shown) on the display body DB in order to guide the route to the destination.

  The control circuit 84 is connected to a detector (not shown) for detecting an abnormality of the display body DA or the display body DB. For example, a temperature sensor that detects the temperature of the display body DA or the display body DB, an ammeter that detects the current flowing through the light emitting layer 15 of each pixel P, or a luminance meter that measures the luminance of each pixel P is suitable as the detector. Adopted. The control circuit 84 determines that an abnormality has occurred in the display body DA and the display body DB when the detection value by the detector exceeds (or falls below) a predetermined threshold value, and executes predetermined control. For example, when the abnormality of the display body DA is detected, the control circuit 84 displays the speed of the automobile displayed on the display body DA on the display body DB. According to the above aspect, various images can be displayed using both the display body DA and the display body DB in a state where there is no abnormality, and if an abnormality occurs in one of the display body DA or the display body DB, a desired By changing the display destination of the information to the other display body D, there is an advantage that information with high priority (for example, speed) can be reliably displayed.

  FIG. 15 is a perspective view illustrating a configuration of a mobile personal computer that employs the display device 100. The personal computer 2000 includes a display device 100 that displays various images, and a main body 2010 on which a power switch 2001 and a keyboard 2002 are installed.

  FIG. 16 is a perspective view illustrating a configuration of a mobile phone to which the display device 100 is applied. A cellular phone 3000 includes a plurality of operation buttons 3001, scroll buttons 3002, and a display device 100 that displays various images. By operating the scroll button 3002, the screen displayed on the display device 100 is scrolled.

  FIG. 17 is a perspective view illustrating a configuration of a personal digital assistant (PDA) to which the display device 100 is applied. The portable information terminal 4000 includes a plurality of operation buttons 4001, a power switch 4002, and the display device 100 that displays various images. When the power switch 4002 is operated, various information such as an address book and a schedule book are displayed on the display device 100.

  Note that electronic devices to which the display device according to the present invention is applied include, in addition to the devices illustrated in FIGS. 14 to 17, a digital still camera, a television, a video camera, a car navigation device, a pager, an electronic notebook, electronic paper, Examples include calculators, word processors, workstations, videophones, POS terminals, printers, scanners, copiers, video players, and devices with touch panels.

1 is an exploded perspective view of a display device according to a first embodiment of the present invention. It is a top view which shows the relationship of each part of a display apparatus. It is sectional drawing seen from the IIIa-IIIa line | wire or IIIb-IIIb line | wire in FIG. It is sectional drawing seen from the IV-IV line in FIG. It is a graph which shows the optical characteristic of each part of a display apparatus. It is sectional drawing of the display apparatus which concerns on another example. It is sectional drawing of the display apparatus which concerns on 2nd Embodiment of this invention. It is sectional drawing of the display apparatus which concerns on 3rd Embodiment of this invention. It is sectional drawing of the display apparatus which concerns on 4th Embodiment of this invention. It is sectional drawing of the display apparatus which concerns on a modification. It is a top view of the display apparatus which concerns on a modification. It is sectional drawing of the display apparatus which concerns on a modification. It is sectional drawing of the display apparatus which concerns on a modification. It is a block diagram which shows the form (vehicle-mounted instrument) of the electronic device which concerns on this invention. It is a perspective view which shows the form (personal computer) of the electronic device which concerns on this invention. It is a perspective view which shows the form (cellular phone) of the electronic device which concerns on this invention. It is a perspective view which shows the form (mobile information terminal) of the electronic device which concerns on this invention.

Explanation of symbols

D (DA, DB): Display, 10: First substrate, 11: Light reflecting layer, 12: Insulating layer, 13: Partition layer, 14: First electrode, 15: Light emitting layer, 16 ... second electrode, 17 ... sealed body, 20 ... second substrate, 21 ... light-shielding layer, 22 (22R, 22G, 22B) ... colored layer, 40 ... exterior body, 42 ... opening Part, 60 ... antireflection plate, 62 ... support, 64 ... circularly polarizing plate, 70 (70A, 70B, 70C) ... AR coating layer, 75 ... filler, A1 ... display area, A2 ... ... Edge region, Q1... Outer peripheral edge of the light shielding layer 21, Q2... Peripheral edge of the display body D, R1.

Claims (4)

A first display body and a second display body each having a display area provided with an electro-optic layer and a light reflecting layer that reflects light emitted from the electro-optic layer to the observation side;
A light-shielding exterior body provided with a plurality of openings so that each of the display area of the first display body and the display area of the second display body is exposed;
External light that is provided so as to cover the display area of the first display body, the display area of the second display body, and the exterior body, and is incident from the observation side and reflected by the light reflection layer or the exterior body An anti-reflection plate that suppresses the emission to the observation side,
The first display body and the second display body do not have a portion in contact with each other,
The exterior body is provided so as to cover the first display body and the second display body,
A light-shielding layer is provided on each peripheral portion of the first display body and the second display body,
The light-shielding layer provided on each of the peripheral edges of the first display body and the second display body has a portion that overlaps with the exterior body in a plane,
Reflectivity (%) when measuring light is irradiated to the exterior body through the antireflection plate, and the antireflection for the display area of the first display body and the second display body The maximum value of the difference value at the same wavelength as the reflectance (%) when the measurement light is irradiated through the plate is 3% or less within a range where the wavelength of the measurement light is 500 nm or more and 600 nm or less. Characteristic display device. Each of the first display body and the second display body includes a first electrode, a second electrode, and the electro-optic layer provided between the first electrode and the second electrode. 2. The display device according to claim 1 , comprising a plurality of pixels having the same. A first substrate; a light reflecting layer provided on the first substrate; a first electrode provided on the light reflecting layer; an electro-optic layer provided on the first electrode; A first display body and a second display body each having a second electrode provided on the electro-optic layer and a second substrate provided to face the first substrate. When,
An exterior body having a light-shielding property provided on a peripheral portion of the first display body and the second display body;
An antireflection plate provided on the first display body, the second display body, and the exterior body,
The second substrate is provided with a colored layer that transmits light emitted from the electro-optic layer, and a light-shielding layer that partitions the colored layer and shields light emitted from the electro-optic layer. And
The exterior body overlaps the light shielding layer in a plane,
The first display body and the second display body do not have a portion in contact with each other,
The exterior body is provided so as to cover the first display body and the second display body,
The antireflection plate suppresses the emission of external light incident from the antireflection plate side and reflected by the light reflection layer or the exterior body to the antireflection plate side,
The reflectance (%) when measuring light is applied to the exterior body through the antireflection plate, and the first display body and the second display body through the antireflection plate. The maximum difference value at the same wavelength as the reflectance (%) when irradiated with the measurement light is 3% or less within a range where the wavelength of the measurement light is 500 nm or more and 600 nm or less. apparatus.   An electronic apparatus comprising the display device according to claim 1.

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