JP2013077305A - Display device and electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device with an input function that can prevent glare feeling of display of the display device with the input function as viewed from a viewer, and can perform good display without color unevenness during input operation.SOLUTION: A display device comprises: a display body having an anode, a cathode, and a light emitting layer containing organic material arranged between the anode and the cathode; and an input section stacked on the display body. The anode, the cathode, and the light emitting layer are supported on a substrate having flexibility.

Description

  The present invention relates to a display device with an input function and an electronic apparatus using the display device with an input function.

  In recent years, with the spread of small information electronic devices such as personal digital assistants (PDAs) and palmtop computers, inputs composed of a liquid crystal display device and an organic EL (electroluminescence) device combined with a translucent input unit. Many display devices with functions are used.

  In the conventional display device with an input function, the input unit is arranged on the display surface side of the display unit, and the viewer observes the display unit through the input unit. For example, in the display device with an input function disclosed in Japanese Patent Laid-Open No. 10-91342, an input unit is disposed on the display surface side of the organic EL display unit as shown in FIG.

  However, in the display device with an input function disclosed in Japanese Patent Application Laid-Open No. 10-91342, when the viewer looks at the display unit through the input unit, there is a problem that the display appears to flicker due to reflection inside the input unit. .

  As shown in FIG. 13, the incident light 61 incident from the front surface of the input unit is caused by the difference in refractive index between the ITO films 53 and 54 and the air layer 55, and thus the first ITO film 53 and the air layer. This is because the light is reflected at the interface with 55 and the interface between the air layer 55 and the second ITO film 54.

  A display device with an input function for solving this problem is disclosed in Japanese Patent Laid-Open No. 11-212055. In this display device with an input function, as shown in FIG. 14, the input unit is disposed on the back of the liquid crystal display unit.

  However, in the display device with an input function disclosed in JP-A-11-212055, when an input operation is performed on the input unit via the liquid crystal display unit using the input pen 75, the input pen 75 is pressed by the input pen 75 of the liquid crystal display unit. The display color changes in the portion and color unevenness occurs.

  As shown in FIG. 15, when the liquid crystal display unit is pressed, the gap between the first and second substrates 62 and 63 is pressed (gap b) and the other part (gap a) is also narrowed. This is because the thickness of the liquid crystal layer differs between the pressed portion and other portions.

The present invention has been made in view of the above-described problems, and its purpose is as follows.
(1) The display device with an input function viewed from the viewer's display is prevented from glaring. (2) The display device with an input function capable of providing a good display without color unevenness during an input operation, and an electronic apparatus using the same. Is to provide.

  The display device with an input function according to the present invention includes a display body having a light emitting layer containing an organic material in the display device with an input function, and an input unit stacked on the display body, The input unit is arranged.

  Since the display device with an input function of the present invention has such a configuration, the display on the display unit can be directly visually recognized without passing through the input unit, and the reflection on the input unit need not be visually recognized. The display glare of the display device with an input function viewed from the above can be prevented. In addition, since a display body having a light emitting layer containing an organic material is used, even if the display body is pressed and deformed by an input pen or the like during an input operation, the display is not affected by the deformation of the display body. Good display without color unevenness during input operation. Further, the viewer can directly view the display on the display unit without using the input unit. That is, since the loss of the light amount due to passing through the input unit is eliminated, the brightness of the display screen of the display unit can be secured and the visibility of the viewer can be improved. In addition, the input unit preferably includes a pair of conductive layers arranged with a gap therebetween.

  The light emitting layer is preferably sandwiched between an anode and a cathode, and the anode is preferably located between the input unit and the light emitting layer. By configuring in this way, a display body for organic EL display can be configured.

  The input unit includes a substrate provided with a conductive layer, and one of the anode and the cathode is formed on a side of the substrate opposite to the surface provided with the conductive layer. It is preferable to become. If comprised in this way, the board | substrate with which a display body is formed, and the board | substrate which comprises the input part can be made common, and the display part containing a display body and the input part are produced separately. However, the number of substrates can be reduced by one. Therefore, the number of parts can be reduced and the cost can be reduced.

  Further, it is preferable that the substrate has flexibility. If comprised in this way, it will become possible to transmit suitably the pressing force applied to a display part at the time of input operation to an input part.

  The input unit may further include a second substrate disposed to face the substrate, and the rigidity of the second substrate is preferably higher than that of the substrate. If comprised in this way, it will become possible to contact a 2nd board | substrate favorably with respect to the board | substrate deform | transformed with the pressing force applied at the time of input operation.

  A display device with an input function according to the present invention is a display device having an anode, a cathode, a light emitting layer containing an organic material disposed between the anode and the cathode, and an input laminated on the display body. The anode, the cathode, and the light emitting layer are supported by a flexible substrate.

  A display device with an input function according to the present invention is a display device having an input function, the display body having a first electrode, a second electrode, and a light emitting layer including an organic material disposed therebetween, and a back surface of the display body And an input unit arranged on the side, wherein the display body is sandwiched between a pair of flexible substrates.

  Since the display device with an input function of the present invention has such a configuration, the display on the display unit can be directly visually recognized without passing through the input unit, and the reflection on the input unit need not be visually recognized. The display glare of the display device with an input function viewed from the above can be prevented. In addition, since a display body having a light emitting layer containing an organic material is used, even if the display body is pressed and deformed by an input pen or the like during an input operation, the display is not affected by the deformation of the display body. Good display without color unevenness during input operation. Further, the viewer can directly view the display on the display unit without using the input unit. That is, since the loss of the light amount due to passing through the input unit is eliminated, the brightness of the display screen of the display unit can be secured and the visibility of the viewer can be improved. Further, since the anode, the cathode, and the light emitting layer are supported by the flexible substrate, it is possible to satisfactorily transmit the pressing force applied to the display unit during the input operation to the input unit.

  Moreover, it is preferable that the said display body is provided in the said flexible substrate of the back side. With such a configuration, the substrate on which the display body is provided and the substrate constituting the input unit can be made common.

  Moreover, it is preferable that the said display body is provided in the said flexible substrate of the front side. By having such a configuration, light emitted from the display body is directly emitted from the display unit via the flexible substrate, so that the display is brighter than when the display body is provided on the flexible substrate on the back side. It can be performed.

  In addition, the first electrode and the second electrode are formed in a stripe shape, the first electrode and the second electrode intersect with each other, and a dot region is formed in the intersecting region, and the display body Is provided on one of the flexible substrates, and a spacer member is disposed between the display body and the other flexible substrate, and the spacer member is disposed to avoid the dot region. It is preferable to be made.

  By having such a configuration, when the front flexible substrate is pressed and deformed by the input pen during the input operation, the pressing force received by the display body by the front flexible substrate can be reduced. It is possible to prevent a problem that one of the first electrode and the second electrode penetrates the light emitting layer and shorts with the other of the first electrode and the second electrode when pressed. Furthermore, since the spacer member is disposed so as to avoid the dot region, the display of the display body is not hindered.

  The display body is preferably provided on one of the flexible substrates, and a light-transmitting insulating layer is preferably disposed between the display body and the other flexible substrate. . By having such a configuration, when the front flexible substrate is pressed and deformed by the input pen during the input operation, the pressing force received by the display body by the front flexible substrate can be reduced. It is possible to prevent a problem that one of the first electrode and the second electrode penetrates the light emitting layer and shorts with the other of the first electrode and the second electrode when pressed.

  The flexible substrate preferably includes a plastic substrate. The flexible substrate preferably includes a material selected from the group consisting of polycarbonate, polyacrylate, polyethersulfone, epoxy, polyimide, and polyethylene terephthalate. The flexible substrate may include a glass substrate having a thickness of 0.15 mm to 0.3 mm. Thus, if the thickness of the glass substrate is 0.30 mm or less, the glass substrate can be deformed by pressing without any problem in actual use, and the input operation can be performed satisfactorily. On the other hand, if the thickness of the glass is 0.15 mm or more, the glass substrate can be prevented from being damaged by pressing in actual use. The glass substrate referred to here is a glass substrate generally used in an electro-optical device. For example, soda lime glass, low alkali glass (neutral borosilicate glass), non-alkali glass, or the like can be used. In addition, the display device with an input function includes a display body for displaying an image, and an input unit disposed on a back surface of the display body, and the input unit includes a conductive layer for position detection. Is preferably provided with a metal layer. The sheet resistance value of the conductive layer is preferably lower than that of indium tin oxide having the same thickness. The conductive layer preferably contains a metal selected from the group consisting of aluminum, chromium, gold, silver, copper, and palladium. An electronic apparatus according to the present invention includes the display device with an input function according to the present invention.

1 is a perspective view of a display device with an input function according to a first embodiment. It is sectional drawing of the display apparatus with an input function which concerns on 1st Embodiment. It is a top view of the display apparatus with an input function concerning a 1st embodiment. It is a top view of the display apparatus with an input function concerning a 1st embodiment. It is sectional drawing of the display apparatus with an input function which concerns on 1st Embodiment. It is sectional drawing of the display apparatus with an input function which concerns on 2nd Embodiment. It is a top view of the display apparatus with an input function which concerns on 2nd Embodiment. It is sectional drawing of the display apparatus with an input function which concerns on 3rd Embodiment. It is a top view of the display apparatus with an input function concerning a 3rd embodiment. It is sectional drawing of the display apparatus with an input function which concerns on 4th Embodiment. It is sectional drawing of the display apparatus with an input function which concerns on 5th Embodiment. It is sectional drawing of the display apparatus with an input function which concerns on 6th Embodiment. It is sectional drawing of the display apparatus with an input function which concerns on a prior art example. It is sectional drawing of the display apparatus with an input function which concerns on a prior art example. It is sectional drawing of the display apparatus with an input function which concerns on a prior art example. It is a disassembled perspective view which shows the electronic notebook which is an example of the electronic device which concerns on 7th Embodiment.

<First Embodiment>
(Structure of the display device with an input function of the first embodiment)
Hereinafter, preferred embodiments of the present invention will be described more specifically with reference to the drawings. FIG. 1 is a perspective view showing a display device with an input function according to the first embodiment.
FIG. 2 is a cross-sectional view illustrating the display device with an input function according to the first embodiment taken along the line X1-X1. FIG. 3 is a plan view of the front surface of the display device with an input function according to the first embodiment viewed from the Z direction. FIG. 4 is a plan view of the back surface of the display device with an input function according to the first embodiment viewed from the Z direction. FIG. 5 is a cross-sectional view showing a state during an input operation of the display device with an input function of the first embodiment.

  As shown in the perspective view of FIG. 1, the display device with an input function of the present embodiment has a second substrate 2, a first substrate 1, and a third substrate 3 stacked in this order from the back. The first flexible wiring board 16a is joined to the first board along the side in the Y direction, and the second flexible wiring board 16b is joined along the side in the X direction.

  As shown in the cross-sectional view of FIG. 2, the display device with an input function includes a display unit 29 and an input unit 30 disposed on the back side thereof.

  First, the display unit 29 will be described with reference to FIGS. As shown in FIG. 2, the display unit 29 includes the third substrate 3, the sealing material 4, the anode 8, the light emitting layer 7, and the cathode 6. In the present invention, a portion including the anode 8, the light emitting layer 7, and the cathode 6 is referred to as a display body 5.

  The anode 8 is made of a conductive material, and is made of MgIn in this embodiment. The light emitting layer 7 is formed including an organic material, and is formed of organic EL (electroluminescence) in the present embodiment. The cathode 6 is formed of a light-transmitting and conductive material, and is formed of ITO (indium tin oxide) in this embodiment.

  The 3rd board | substrate 3 used what was comprised including the translucent flexible material, and the plastic substrate containing polyether sulfone (PES) was used in this embodiment.

  Next, the relationship between the components of the display unit 29 will be described. As shown in FIG. 2, the display body 5 is disposed on the back side of the third substrate 3. As shown in FIGS. 2 and 3, the anode 8, the light emitting layer 7 and the cathode 6 are laminated on the first substrate 1 in this order from the back side, and the anode 8 and the cathode 6 are respectively formed in stripes.

  The light emitting layer 7 is formed so as to overlap at least a plurality of regions where the anode 8 and the cathode 6 intersect. Hereinafter, each of the overlapping regions of the anode 8 and the cathode 6 is referred to as a dot region 90.

  The light emitting layer 7 has red, green and blue light emitting regions. That is, the light emitting layer 7 emits red, green, and blue as the three primary colors. The light emitting areas of different colors are arranged corresponding to the dot areas 90. With this configuration, the display unit 29 can perform full color display.

  The third substrate 3 is bonded to the first substrate 1 via the sealing material 4. The sealing material 4 is arranged along the outer edge of the third substrate 3 so as to surround the display body 5. As a result, the display body 5 is sealed by the third substrate 3, the sealing material 4, and the first substrate 1.

  The first substrate 1 also has a first overhanging portion 12 that does not overlap the third substrate 3 and protrudes from the edge of the third substrate 3. The first projecting portion 12 is arranged along the Y direction and is electrically connected to the anode 8, and is arranged along the X direction, and is electrically connected to the cathode 6. A second panel wiring 14b to be connected is formed. In the present embodiment, the first panel wiring 14 a is formed in the same layer as the anode 8 and is formed by extending the anode 8 from the overlapping portion of the first substrate 1 and the third substrate 3, and the second panel wiring 14 b is connected to the cathode 6. In the same layer, the cathode 6 extends from the overlapping portion of the first substrate 1 and the third substrate 3.

  Next, the input unit 30 will be described with reference to FIGS. The input unit 30 is disposed on the back side of the display unit 29 and includes the first substrate 1, the first input conductive layer 9, the bonding material 11, the second input conductive layer 10, and the second substrate 2. .

  The 1st board | substrate 1 used the thing containing a flexible raw material, and the plastic substrate containing polyether sulfone (PES) was used in this embodiment.

  The second substrate 2 includes a hard material that is higher in rigidity than the first and third substrates 1 and 3, and a glass substrate is used in the present embodiment.

  The first input conductive layer 9 and the second input conductive layer 10 are made of a conductive material, and in this embodiment, a material containing ITO (indium tin oxide) is used.

  Next, the relationship between the components of the input unit will be described with reference to FIG. A second substrate 2 is disposed on the back side of the first substrate 1 with a predetermined interval. A first input conductive layer 9 and a second input conductive layer 10 are provided on the opposing surface sides of the first substrate 1 and the second substrate 2, respectively. The first substrate 1 and the second substrate 2 are bonded to each other by a bonding material 11. As shown in FIG. 4, the bonding material 11 is disposed along the outer edge of the second substrate 2, and an air layer 80 is provided between the first substrate 1 and the second substrate 2.

  The first and second input conductive layers 9 and 10 are formed as integral planar surface electrodes, and the X of the input point is obtained by contact of the first and second input conductive layers 9 and 10. The position in the direction and the position in the Y direction are detected.

Also, as shown in FIGS. 2 and 4, dot spacers 95 are distributed between the first and second input conductive layers 9 and 10, and the first input conductive layer is not operated during non-input operation. The layer 9 and the second input conductive layer 10 are not in contact with each other.
In the present invention, since the input unit 30 is shielded by the display body 5, the dot spacer 95 is not visually recognized by the viewer. Accordingly, the dot spacer 95 may be substantially opaque as long as it has insulating properties.

  As shown in FIG. 4, the first substrate 1 has a second protruding portion 13 that does not overlap the second substrate 2 and protrudes from the edge of the second substrate 2. A third panel wiring 15 that is electrically connected to the first and second input conductive layers 9 and 10 is formed in the second projecting portion 13. The third panel wiring 15 is connected to an external circuit such as a printed circuit board (not shown).

  Next, a connection structure between the first substrate 1 and the first and second flexible wiring boards 16a and 16b will be described with reference to FIGS. The first and second flexible wiring boards 16a and 16b include a flexible base material 17 including polyimide, a wiring 18 including a copper thin film provided on the flexible base material 17, a driving semiconductor element 19a mounted on the flexible base material 17, The driving semiconductor element connected to the wiring 18 has input and output bumps 20 and 21. Further, the first and second flexible wiring boards 16a and 16b electrically and mechanically join the flexible substrate 17 and the wiring 18 to the driving semiconductor element 19a and the input and output bumps 20 and 21. The adhesive 23 is included. And the wiring 18 in the 1st and 2nd flexible wiring boards 16a and 16b is connected to the 1st panel wiring 14a and the 2nd panel wiring 14b through the adhesive agent 24, respectively. Moreover, as the adhesives 23 and 24, in this embodiment, an anisotropic conductive adhesive having a configuration in which the conductive particles 23b and 24b are dispersed in the adhesive resins 23a and 24a is used. An adhesive can also be used.

  Accordingly, the output signals from the driving semiconductor elements 19a and 19b of the first and second flexible wiring boards 16a and 16b pass through the output bump 21, the wiring 18, and the first and second panel wirings 14a and 14b, respectively. It is sent to the anode 8 and the cathode 6.

(Operational effect of the display device with an input function of the first embodiment)
According to the display device with an input function described above, by arranging the input unit 30 on the back side of the display unit 29 and performing input from the display unit 29 to the input unit 30 ( 1) Since the display on the display unit 29 can be directly viewed without passing through the input unit 30 and the reflection at the input unit 30 does not have to be viewed, the display glare of the display device with an input function viewed from the viewer A feeling of sticking can be prevented.

  (2) Since the display body 5 having the light emitting layer 7 containing an organic material is used, even when the third substrate 3 is pressed and deformed with the input pen 26 or the like as shown in FIG. Since the display is not affected by the deformation of the third substrates 1 and 3, a good display without color unevenness can be performed during the input operation.

  (3) Since the display on the display unit 29 can be directly visually recognized without passing through the input unit 30 and there is no loss of light quantity due to passing through the input unit 30, the brightness of the display screen of the display unit 29 is ensured. Visibility can be improved.

  (4) Since the first and third substrates 1 and 3 except for the second substrate 2 use substrates including a flexible material, they are thinner than when a substrate including a hard material is used. Weight reduction can be achieved.

  (5) In addition, the display device with an input function 100 according to the present embodiment has a smaller number of films provided on the front side of the input unit than the liquid crystal display device with an input function 300 illustrated in FIG. In the liquid crystal display device 300 with an input function shown in FIG. 14, a polarizing plate 67, a polarizing plate 70, and a reflecting plate 71 are provided on the front side of the input unit. Therefore, in the liquid crystal display device 300 with an input function shown in FIG. 14, it is difficult for the pressure during the input operation to be well transmitted to the input unit due to the rigidity of these films. In contrast, the display device with an input function 100 according to the present embodiment has a smaller number of films than the liquid crystal display device with an input function 300 in FIG. Is possible.

(Modification of the first embodiment)
In the first embodiment, the anode 8 is formed of MgIn. However, the material of the anode 8 is not limited to this, and the material of the cathode 6 (in the first embodiment, ITO (indium tin oxide) is used. )) And a work material having a different work function can be arbitrarily selected. For example, when ITO (indium tin oxide) is used as the material of the cathode 6, the material of the anode 8 is Al (aluminum), Cu ( Conductive metal materials such as copper), Au (gold), and Au (silver) can be used.

  Moreover, although the light emitting layer 7 of the organic EL according to the first embodiment includes a plurality of light emitting regions having different colors, the organic EL light emitting layer 7 may include a single color light emitting region, for example, a white light emitting region. With this configuration, a monochrome display type display unit can be configured. On the other hand, in the first embodiment, as the selection of the three primary colors when performing full-color display, a combination of cyan, magenta, and yellow is selected as the three primary colors in addition to the combination of red, green, and blue, and the light emitting layer 7 However, cyan, magenta, and yellow light emitting areas may be provided.

  In addition, the third and first substrates 3 and 1 of the first embodiment are plastic substrates including polyethersulfone (PES), but any substrate having translucency and flexibility may be used. For example, a flexible substrate containing polycarbonate (PC), polyacrylate (PAr), epoxy, or polyimide can be used. Moreover, a gas barrier layer formed of ethylene vinyl alcohol (EVA) or other material and a surface layer formed of epoxy resin or the like may be laminated on the front and back as necessary. Moreover, as a flexible substrate used for the third and first substrates 3 and 1, a glass substrate having a thickness of 0.15 mm or more and 0.35 mm or less can be used. According to the applicant's experiment, when the thickness of the glass substrate is larger than 0.35 mm, the glass substrate is not sufficiently bent, so that the input operation cannot be performed well, and the thickness of the glass substrate is smaller than 0.15 mm. When it becomes small, a glass substrate will be damaged by press at the time of input operation.

  Moreover, although the glass substrate was used for the 2nd board | substrate 2 of 1st Embodiment, the board | substrate containing arbitrary materials can be used if it is a board | substrate with higher rigidity than the 1st board | substrate 1. FIG. Since the second substrate 2 is more rigid than the first substrate 1, the amount of deformation of the second substrate 2 is smaller than the amount of deformation of the first substrate 1 during the input operation. The two-input conductive layers 9 and 10 can be in good contact with each other.

In the first embodiment, since the first substrate 1 and the second substrate 2 constituting the input unit 30 are located on the back side of the display unit 29, it is not necessary to use a transparent substrate, and the third substrate A substrate that is more opaque than 3 can be used. Therefore, it is not necessary to use an expensive plastic substrate having a high light transmittance in general, so that the cost can be reduced.
Moreover, although the material containing ITO (indium tin oxide) is used for the 1st and 2nd input conductive layers 9 and 10 of 1st Embodiment, it is not limited to this, The 1st and 2nd As the input conductive layers 9 and 10, it is possible to reduce the cost by using an inexpensive material having lower translucency than ITO (indium tin oxide). This is because the first and second input conductive layers 9 and 10 do not need to have translucency because there is no need to visually recognize the display unit through the input unit 30.

  In addition, as the material of the first and second input conductive layers 9 and 10, a material having a sheet resistance value lower than that of ITO (indium tin oxide) having the same thickness can be used. For example, a metal material such as chromium, gold, silver, copper, or palladium can be used. In addition, as the metal material used for the first and second input conductive layers 9 and 10, it is not necessary to consider translucency. Therefore, instead of ITO, a tin oxide film having the same thickness as ITO and having a high sheet resistance value is used. Can also be used.

  If a film having a high sheet resistance is used in this way, the same resistance value as in the case of ITO can be obtained even if the first and second input conductive layers 9 and 10 are made thinner than the ITO film. Can do. Accordingly, the first and second input conductive layers 9 and 10 can be formed thinner than the first and second ITO films of the input device shown in FIG. It is possible to obtain a film that is flatter than the first and second ITO films of the input device. According to this modification, by using the flat first and second input conductive layers 9 and 10, it is possible to reduce variations in position detection in the plane of the input unit.

  In addition, the first panel wiring 14a and the second panel wiring 14b of the first embodiment are formed by extending the anode 8 and the cathode 6, respectively. However, the present invention is not limited thereto, and the anode 8 or the cathode is not limited thereto. You may comprise including the electroconductive metal material with a lower sheet resistance value of the same thickness than six.

Second Embodiment
Next, the display device with an input function according to the second embodiment will be described with reference to FIGS. 6 and 7. The same components as those in the first embodiment are denoted by the same reference numerals, detailed description thereof will be omitted, and differences will be described in detail. FIG. 6 is a cross-sectional view of the display device with an input function according to the second embodiment. FIG. 7 is a plan view of the display device with an input function of the second embodiment.

  As shown in FIG. 6, in the display device with an input function of this embodiment, an input unit 30 is arranged on the back side of the display unit 29. The display unit 29 includes the third substrate 3, the sealing material 4, the spacer member 27, the cathode 6, the light emitting layer 7, and the anode 8. Similar to the first embodiment, the cathode 6, the light emitting layer 7 and the anode 8 are collectively referred to as a display body 5. The input unit 30 includes the first substrate 1, the first input conductive layer 9, the bonding material 11, the second input conductive layer 10, and the second substrate 2.

  The material of each component of the display unit 29 and the input unit 30 is the same material as that of the first embodiment, and various materials shown in the modified embodiments of the first embodiment can also be used. As shown in FIGS. 6 and 7, the cathode 6 and the anode 8 are formed in stripes, and dot regions 90 are formed in a plurality of regions where the cathode 6 and the anode 8 intersect. The light emitting layer is formed so as to overlap at least the dot region 90 in a plane.

  As shown in FIGS. 6 and 7, the second embodiment is different from the first embodiment in that an insulating spacer is provided between the display body 5 and the third substrate 3 so as to avoid the dot region 90. This is the point at which the member 27 is arranged. Other configurations are the same as those of the first embodiment, and the same effects as those of the first embodiment can be obtained with respect to the same configurations as those of the first embodiment.

  In this manner, by providing the insulating spacer member 27 between the display body 5 and the third substrate 3, the third substrate 3 can be deformed when the third substrate 3 is pressed and deformed by the input pen during the input operation. Thus, the pressing force received by the display body 5 can be relaxed, and a problem that the cathode 6 penetrates the light emitting layer 7 and shorts with the anode 8 at the time of pressing can be prevented. Furthermore, since the spacer member 27 is disposed so as to avoid the dot region, the display of the display body is not hindered.

  The spacer member 27 may also serve as a partition between the dot regions 90 used when the light emitting layer 7 is formed using a vapor deposition method or an ink jet method. In addition, since the spacer member 27 is arranged so as to avoid the dot regions 90, the spacer member 27 may have a substantially opaque material. For example, if the spacer member 27 has a light-shielding material, the space between the dot regions may be increased. Since it can be used as a black mask and color mixing between light emitting regions of different colors can be reduced, contrast can be improved.

<Third Embodiment>
Next, the display device with an input function according to the third embodiment will be described with reference to FIGS. The same components as those of the second embodiment are denoted by the same reference numerals, detailed description thereof will be omitted, and differences will be described in detail. FIG. 8 is a cross-sectional view of the display device with an input function of the third embodiment. FIG. 9 is a plan view of the display device with an input function of the third embodiment.

As shown in FIGS. 8 and 9, the third embodiment is different from the second embodiment in that a light-transmitting insulating layer 28 is disposed between the display body 5 and the third substrate 3. It is. The translucent insulating layer 28 is integrally formed so as to cover the entire front surface of the display body 5 in a planar manner. That is, the difference from the second embodiment is that each of the plurality of dot regions 90 is covered with the translucent insulating layer 28. Other configurations are the same as those of the second embodiment. As a material used for the light-transmitting insulating layer 28, SiO ₂ , acrylic resin, or the like can be used.

  In this way, by providing the light-transmitting insulating layer 28 between the display body 5 and the third substrate 3, the third substrate 3 is deformed when the third substrate 3 is pressed and deformed by the input pen during the input operation. 3 can relieve the pressing force received by the display body 5, and can prevent a problem that the cathode 6 penetrates the light emitting layer 7 and shorts with the anode 8 when pressed. Furthermore, since the translucent insulating layer 28 is disposed up to the plurality of dot regions 90, the area for disposing the insulating layer 28 can be increased as compared with the second embodiment. The effect of reducing the pressing force is greater than that of the form.

  Further, in this embodiment, since the insulating layer 28 is integrally formed, the patterning step required when forming the insulating layer 27 in the second embodiment can be omitted, and the manufacturing is performed in comparison with the second embodiment. The process can be simplified. Further, if the material of the translucent insulating layer 28 is a material that is substantially equal to or close to the refractive index of the third substrate 3, reflection that occurs at the interface between the translucent insulating layer 28 and the third substrate 3, Refraction can be reduced.

<Fourth embodiment>
Next, the display device with an input function of the fourth embodiment will be described with reference to FIG. The same components as those in the first embodiment are denoted by the same reference numerals, detailed description thereof will be omitted, and differences will be described in detail.

  As shown in FIG. 10, the difference of the fourth embodiment from the first embodiment is that the display body 5 is formed on the third substrate 3. On the third substrate 3, an anode 8, a light emitting layer 7, and a cathode 6 are laminated in this order. A third projecting portion 112 that does not overlap the first substrate 1 is formed on the third substrate 3, and flexible wiring substrates 16 a and 16 b similar to those of the first embodiment are joined to the third projecting portion 112. . Other configurations are the same as those of the first embodiment.

  In this way, by providing the display body 5 on the third substrate 3, light emitted from the display body 5 is emitted directly through the third substrate 3, so that the display body 5 emits light as in the first embodiment. Since the emitted light does not pass through the gap between the display body 5 and the third substrate 3, there is no loss of light there, so the display color can be brightened.

<Fifth Embodiment>
Next, a display device with an input function according to a fifth embodiment will be described with reference to FIG. The same components as those of the second embodiment are denoted by the same reference numerals, detailed description thereof will be omitted, and differences will be described in detail.

  As shown in FIG. 11, the difference of the fifth embodiment from the second embodiment is that the display body 5 is formed on the third substrate 3. On the third substrate 3, an anode 8, a light emitting layer 7, and a cathode 6 are laminated in this order. A third projecting portion 112 that does not overlap the first substrate 1 is formed on the third substrate 3, and flexible wiring substrates 16a and 16b similar to those of the second embodiment are joined to the third projecting portion 112. . Other configurations are the same as those of the second embodiment.

  Thus, by providing the display body 5 on the third substrate 3, light emitted from the display body 5 is emitted directly through the third substrate 3, so that the display body 5 is emitted from the display body as in the second embodiment. Since the emitted light does not pass through the gap between the display body 5 and the third substrate 3, there is no loss of light there, so the display color can be brightened. Furthermore, since the insulating spacer member 27 is located on the back side of the display body 5, even if the viewer changes the viewing angle and looks at the display of the display device with an input function, it is visually recognized as in the second embodiment. There is no fear that the spacer member 27 is visually recognized by a person.

<Sixth Embodiment>
Next, a display device with an input function according to a fifth embodiment will be described with reference to FIG. The same components as those in the third embodiment are denoted by the same reference numerals, detailed description thereof will be omitted, and differences will be described in detail.

  As shown in FIG. 12, the difference of the fifth embodiment from the third embodiment is that the display body is formed on the third substrate 3. On the third substrate 3, an anode 8, a light emitting layer 7, and a cathode 6 are laminated in this order. A third projecting portion 112 that does not overlap the first substrate 1 is formed on the third substrate 3, and flexible wiring substrates 16a and 16b similar to those of the third embodiment are joined to the third projecting portion 112. . Other configurations are the same as those of the third embodiment.

  In this way, by providing the display body 5 on the third substrate 3, light emitted from the display body 5 is emitted directly through the third substrate 3, so that the display body 5 emits light as in the first embodiment. Since the emitted light does not pass through the light-transmitting insulating layer 28, there is no loss of light there, so that the display color can be brightened. Furthermore, since the translucent insulating layer 28 is located on the back side of the display body, unlike the second embodiment, there is no possibility that the translucent insulating layer 28 is visually recognized by a viewer. Further, since the light-transmitting insulating layer 28 is located on the back side of the display body 5, a light-transmitting insulating layer may be used instead of the light-transmitting insulating layer 28.

<Modification of First to Sixth Embodiments>
For example, in each of the above embodiments, a display device with an input function including a display unit of a simple matrix drive system is shown. However, in terms of the drive system, a three-terminal switching element represented by a TFT (Thin Film Transistor) is used. The active matrix display portion can also be used.

  Moreover, in each said embodiment, although the example which comprises the display part 29, the input part 30, and the flexible wiring boards 16a and 16b comprised the display apparatus with an input function was shown, this display apparatus with an input function is made of metal etc. What is fixed to the frame can also be used as a display device incorporated in an electronic device. In each of the above embodiments, the analog type input unit 30 is shown as the input unit. However, other types of input units such as an XY type or an electromagnetic induction type may be used.

<Seventh embodiment>
FIG. 16 is an exploded perspective view showing a state in which the display device with an input function according to the first to sixth embodiments is incorporated in an electronic notebook 152 which is an electronic apparatus having an upper housing 148 and a lower housing 150. . In FIG. 16, parts other than the display device with an input function are considerably omitted. The electronic notebook 400 includes various circuits such as a display information output source, a display information processing circuit, and a clock generation circuit on a circuit board 154 and the like, a power supply circuit that supplies power to these circuits, and the like.

  The electronic device in which the display device with an input function of each of the embodiments is incorporated is not limited to an electronic notebook, but includes various electronic devices such as a mobile phone, a clock, a pager, a calculator, a POS terminal, an IC card, and a mini disc player. Conceivable.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications may be made within the scope of the gist of the present invention or the equivalent scope of the claims. Is possible.

  DESCRIPTION OF SYMBOLS 1 ... 1st board | substrate, 2 ... 2nd board | substrate, 3 ... 3rd board | substrate, 4 ... Sealing material, 5 ... Display body, 6 ... Cathode, 7 ... Light emitting layer, 8 ... Anode, 9 ... 1st input conductive layer DESCRIPTION OF SYMBOLS 10 ... 2nd input conductive layer, 11 ... Bonding material, 12 ... 1st overhang | projection part, 13 ... 2nd overhang | projection part, 14a ... 1st panel wiring, 14b ... 2nd panel wiring, 15 ... 3rd panel wiring, 16a ... first flexible wiring board, 16b ... second flexible wiring board, 17 ... flexible substrate, 18 ... wiring, 19a ... first driving semiconductor element, 19b ... second driving semiconductor element, 20 ... input bump, 21 ... Output bumps, 23 ... Anisotropic conductive adhesive, 23a ... Adhesive resin, 23b ... Conductive particles, 24 ... Anisotropic conductive adhesive, 24a ... Adhesive resin, 24b ... Conductive particles, 26 ... Input pen, 27 ... Spacer member, 28 ... Translucent insulating resin layer, DESCRIPTION OF SYMBOLS 9 ... Display part, 30 ... Input part, 50 ... 3rd transparent substrate, 51 ... 2nd transparent substrate, 52 ... 1st transparent substrate, 53 ... 1st ITO film, 54 ... 2nd ITO film, 55 ... Air layer, 56 ... Second sealing material, 57 ... First sealing material, 58 ... Anode, 59 ... White light emitting body (light emitting body), 60 ... Cathode, 61 ... Light path, 62 ... First substrate 63 ... second substrate, 64 ... third substrate, 65 ... first display electrode, 66 ... second display electrode, 67 ... polarizing plate, 68 ... liquid crystal, 69 ... sealing material, 70 ... polarizing plate, 71 ... Reflector, 72 ... first input electrode, 73 ... second input electrode, 74 ... sealing material, 75 ... input pen, 80 ... air layer, 90 ... dot region, 95 ... dot spacer, 100 ... with input function Display device, 148 ... upper casing, 150 ... lower casing, 152 ... electronic notebook (electronic device), 154 ... circuit Plate, 200 ... input function-equipped display device, 300 ... liquid crystal display device with an input function.

The display device with an input function according to the present invention includes a display body having a light emitting layer containing an organic material in the display device with an input function, and an input unit stacked on the display body, The input unit is arranged.
The display device of the present invention includes a first substrate having a first surface and a second surface facing the first surface, and a second substrate provided to face the first surface. A substrate, a third substrate provided so as to face the second surface, and a fourth substrate bonded to the second surface, wherein the first surface includes a first substrate 1 electrode, a second electrode, and a light emitting layer provided between the first electrode and the second electrode, and the second surface includes a first electrode A conductive layer is provided, a second conductive layer is provided on a surface of the third substrate opposite to the second surface, and the fourth substrate is provided with the second substrate. The substrate and the third substrate do not have overlapping portions in plan view.
The display device of the present invention includes a first substrate having a first surface and a second surface facing the first surface, and a second substrate provided to face the first surface. The substrate, a third substrate provided so as to face the second surface, and a fourth substrate bonded to the third substrate, and facing the second surface The third surface of the third substrate is provided with a first electrode, a second electrode, and a light emitting layer provided between the first electrode and the second electrode. A first conductive layer is provided on the first surface, and a second conductive layer is provided on a fourth surface of the second substrate opposite to the first surface. The fourth substrate is bonded to the third surface of the third substrate, and the fourth substrate is in plan view with respect to the second substrate and the third substrate. Overlap Characterized in that it does not have a minute.

The light emitting layer is preferably sandwiched between an anode and a cathode, and the anode is preferably located between the input unit and the light emitting layer. By configuring in this way, a display body for organic EL display can be configured.
Moreover, it is preferable that the first substrate, the second substrate, and the third substrate have flexibility.
The fourth substrate is preferably provided with a third conductive layer, and the third conductive layer and the first electrode are preferably electrically connected.
Moreover, it is preferable that a spacer is provided between the first conductive layer and the second conductive layer.

Claims (19)

In the display device with input function,
A display body having a light emitting layer containing an organic material, and an input section laminated on the display body,
A display device with an input function, wherein the input unit is arranged on a back side of the display body. The display device with an input function according to claim 1,
The display unit with an input function, wherein the input unit includes a pair of conductive layers arranged with a gap therebetween. The display device with an input function according to claim 1,
The light emitting layer is sandwiched between an anode and a cathode,
The display device with an input function, wherein the anode is located between the input unit and the light emitting layer. The display device with an input function according to claim 1,
The input unit includes a substrate provided with a conductive layer,
One of the anode and the cathode is formed on the side of the substrate opposite to the surface on which the conductive layer is provided. The display device with an input function. The display device with an input function according to claim 4,
The display device with an input function, wherein the substrate is flexible. The display device with an input function according to claim 5,
The input unit is
A second substrate disposed opposite to the substrate;
The display device with an input function, wherein the rigidity of the second substrate is higher than that of the substrate. In the display device with input function,
A display having an anode, a cathode, and a light emitting layer including an organic material disposed between the anode and the cathode;
Comprising an input part laminated on the display body;
The display device with an input function, wherein the anode, the cathode, and the light emitting layer are supported by a flexible substrate. In the display device with input function,
A display having a first electrode, a second electrode, and a light-emitting layer including an organic material disposed therebetween,
An input unit disposed on the back side of the display body,
The display device with an input function, wherein the display body is sandwiched between a pair of flexible substrates.   9. The display device with an input function according to claim 8, wherein the display body is provided on the flexible substrate on a back side thereof.   9. The display device with an input function according to claim 8, wherein the display body is provided on the flexible substrate on a front surface side thereof. The display device with an input function according to claim 8, wherein the first electrode and the second electrode are formed in a stripe shape,
The first electrode and the second electrode intersect with each other, and a dot region is formed in the intersecting region,
The display body is provided on one of the flexible substrates,
A spacer member is disposed between the display body and the other flexible substrate,
The display device with an input function, wherein the spacer member is arranged so as to avoid the dot region. The display device with an input function according to claim 8,
The display body is provided on one of the flexible substrates,
A display device with an input function, wherein a light-transmitting insulating layer is disposed between the display body and the other flexible substrate. The display device with an input function according to claim 8,
The display device with an input function, wherein the flexible substrate includes a plastic substrate. The display device with an input function according to claim 8,
The display device with an input function, wherein the flexible substrate includes a material selected from the group consisting of polycarbonate, polyacrylate, polyethersulfone, epoxy, polyimide, and polyethylene terephthalate. The display device with an input function according to claim 8,
The display device with an input function, wherein the flexible substrate includes a glass substrate having a thickness of 0.15 mm to 0.35 mm. In the display device with input function,
A display body for displaying an image, and an input unit disposed on the back of the display body,
The display unit with an input function, wherein the input unit includes a conductive layer for position detection, and the conductive layer includes a metal layer. The display device with an input function according to claim 16,
The display device with an input function, wherein the sheet resistance value of the conductive layer is lower than that of indium tin oxide having the same thickness. The display device with an input function according to claim 17,
The display device with an input function, wherein the conductive layer includes a metal selected from the group consisting of aluminum, chromium, gold, silver, copper, and palladium.   An electronic apparatus comprising the display device with an input function according to claim 1.

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