JP2006018085A - Self light emitting apparatus and electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase reliability by realizing miniaturization of a self light emitting apparatus. <P>SOLUTION: The apparatus comprises; a second electrodes opposed to the plurality of the first electrodes and interposing a light emitting layer with the first electrodes; and wiring for the second electrodes which extend to a neighboring area from the area other than the neighboring area in a peripheral area and which have a contact part connected to a part of the second electrodes, being extended to the neighboring area and formed in the neighboring area. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a technical field of a self-luminous device such as an organic EL (Electro-Luminescence) device and various electronic devices including the self-luminous device.

  In this type of self-luminous device, as disclosed in Patent Document 1, for example, in the case of an organic EL device, each pixel portion formed in the image display area on the substrate includes an organic EL element as a light emitting element. . The organic EL element has an organic EL layer sandwiched between, for example, an anode formed for each pixel and a cathode facing a plurality of anodes. In the peripheral area located around the image display area, a plurality of signal lines serving as a drive signal supply path for driving each pixel unit are wired, and a cathode wiring connected to the cathode of the organic EL element is provided. Is formed. According to Patent Document 1, in the connection portion along one side of the image display region, the cathode is electrically connected to the cathode wiring provided below the cathode on the substrate via the auxiliary electrode (patent). (Refer FIG. 1 (C) and FIG. 2 in the literature 1).

  Note that a dummy pixel portion may be provided at an end portion along at least one side of the image display area in order to ensure the formation of an organic EL layer or a cathode or to prevent circuit destruction of the pixel portion due to static electricity. . Since such a dummy pixel portion is provided for the purpose of generating a defect in the manufacturing process of the self-light-emitting device or reducing the yield, it is generally not driven when the self-light-emitting device is driven.

JP 2003-288994 A

  Here, in the peripheral region, when a plurality of signal lines are formed in the lower layer with respect to the cathode wiring on the substrate, in the connection part of Patent Document 1 as described above, the surface of the contact part with the cathode in the cathode wiring In addition, there is a possibility that a step is generated due to the signal line being arranged immediately below the contact portion. When a step is generated on the surface of the cathode wiring in this way, when the self-light emitting device is manufactured, the surface of the contact portion of the cathode wiring is covered with a protective film and the etching process is performed. There is a possibility that a covering property is deteriorated and a portion which does not require etching is scraped off. In this case, the yield in the manufacturing process of the self-light-emitting device is lowered, and further, the self-light-emitting device may malfunction due to a poor electrical connection between the cathode wiring and the cathode. In addition, when the step as described above occurs, the resistance value also becomes non-uniform due to the non-uniform film thickness in the cathode wiring, and when the self-luminous device is driven, the current concentrates at a low resistance point and generates heat. However, there arises a problem that the self-luminous device deteriorates. As a result, the reliability of the self-light-emitting device is reduced.

  Further, if the contact region is increased in order to ensure a sufficient current capacity in the contact portion of the cathode wiring, the peripheral region also increases, and the size of the substrate increases, making it difficult to reduce the size of the self-light emitting device. .

  The present invention has been made in view of the above problems, for example, and a self-light-emitting device capable of achieving good electrical connection between a cathode wiring and a cathode, realizing downsizing and improving reliability, and the same It is an object to provide an electronic device including such a self-light-emitting device.

  In order to solve the above-described problem, the self-light-emitting device of the present invention is adjacent to the image display area among the peripheral areas located around the image display area on the substrate and the image display is not performed. A plurality of pixel driving signal lines wired in the region; a plurality of first electrodes electrically connected to the pixel driving signal line and formed in an opening region for each pixel in the image display region; A second electrode opposed to the first electrode; a light emitting layer sandwiched between the first electrode and the second electrode for each pixel; and the second electrode formed on the substrate in the peripheral region. A second electrode wiring electrically connected to the electrode, wherein the second electrode extends from the image display area to the adjacent area, and the second electrode wiring extends from the peripheral area to the adjacent area. The adjacent area from an area other than the adjacent area With extending, it has a contact portion connected to the second electrode in the adjacent region.

  According to the self-luminous device of the present invention, the image display area on the substrate is provided with a light emitting element including a light emitting layer such as an organic EL layer sandwiched between the first electrode and the second electrode for each pixel. . The first electrode of each light emitting element is electrically connected to the pixel driving signal line. The pixel drive signal lines are wired in the image display area as data lines, scanning lines, or power supply lines, for example. The pixel drive signal line is extended from the image display area to the adjacent area. Note that a thin film transistor (hereinafter referred to as “TFT” as appropriate) or the like may be provided as a driving element for actively driving the light emitting element for each pixel. In this case, the first electrode of each light emitting element is electrically connected to the pixel driving signal line via the driving element.

  The second electrode is formed on the substrate in common with the plurality of light emitting elements. The second electrode is formed to extend from the image display region to the adjacent region so as to overlap the contact portion of the second electrode wiring formed in the adjacent region on the substrate. Note that when the second electrode is formed on the solid extending from the image display area to the peripheral area, the electric capacity of the second electrode is increased, so that the pixel driving signal line is driven in the peripheral area. If this drive circuit is provided, the drive circuit may malfunction. Therefore, in such a case, the second electrode extends from the image display region to the adjacent region so as to overlap the contact portion of the second electrode wiring on the substrate and not to overlap the drive circuit. Is preferably formed.

  When the self light emitting device is driven, a driving signal is supplied to the self light emitting device from, for example, an external circuit to a plurality of pixel driving signal lines. The plurality of pixel drive signal lines are driven based on the drive signals. As described above, when the drive circuit is provided on the substrate, various signals for driving the drive circuit are supplied from an external circuit. A plurality of pixel driving signal lines are driven by the driving circuit. The light emitting element corresponding to the driven pixel drive signal line emits light as follows. That is, for example, the light emitting elements corresponding to the driven data lines and scanning lines are actively driven by the driving elements. At this time, the light emitting layer emits light according to the current applied to the first electrode of the light emitting element from the power supply line. This emitted light is emitted from the aperture region as display light. Then, the current applied to the second electrode through the light emitting layer flows out of the self light emitting device via the second electrode wiring connected to the second electrode as described later.

  A second electrode wiring is formed extending from the region other than the adjacent region to the adjacent region in the peripheral region on the substrate. A contact region is provided in a part of the second electrode wiring disposed in the adjacent region. The contact portion of the second electrode wiring is formed, for example, such that its surface is exposed in the contact region. The second electrode is formed so as to overlap the contact portion of the second electrode wiring, thereby being connected to the second electrode wiring. Alternatively, the connection electrode is formed so that the surface thereof is exposed in the contact region, the second electrode is formed so as to overlap with the exposed part of the connection electrode, and the connection electrode and the second electrode are connected. Further, the second electrode and the second electrode wiring may be indirectly connected by further connecting the contact portion of the second electrode wiring arranged in the contact region and the connection electrode. .

  Therefore, in the self-luminous device of the present invention, a contact region for electrical connection between the second electrode and the second electrode wiring is secured in the adjacent region, so that it is not necessary to newly provide the peripheral region. Therefore, it is possible to save the space in the peripheral region as compared with the prior art as already described. In addition, by securing a plurality of contact regions in the adjacent region, it is possible to perform the connection between the second electrode wiring and the second electrode with a sufficient current capacity. Therefore, in the self-light-emitting device of the present invention, it is possible to satisfactorily connect the second electrode wiring and the second electrode, and it is possible to improve reliability while realizing miniaturization.

  In one aspect of the self-light-emitting device of the present invention, among the pixel driving signal lines wired in the adjacent region, between the two pixel driving signal lines adjacent to each other across the opening region, A contact region is provided, and the contact portion is disposed in the contact region.

  According to this aspect, in the adjacent region, the opening region formed for each pixel is used as the contact region between the two adjacent pixel driving signal lines. With this configuration, in the contact region, on the surface of the interlayer insulating film which is the base of the second electrode wiring, in addition to the pixel driving signal line, a conductive layer or a semiconductor layer constituting at least a part of the driving element A flat surface is formed in which there are no irregularities corresponding to the presence or absence of the. Therefore, the surface of the contact portion of the second electrode wiring can be made flat. The term “flat” as used herein means that the unevenness of the surface of the contact portion of the second electrode wiring is within the range of film thickness variation and surface roughness during film formation of the second electrode wiring or connection electrode. It means that there is.

  Here, if a step is generated on the surface of the contact portion, the resistance value in the contact portion becomes non-uniform. Therefore, when the self-light-emitting device is driven, it is necessary to secure a large area when the contact portion is viewed in plan in order to prevent the current from being concentrated and generating heat at a low resistance portion. On the other hand, in this aspect, since it is possible to prevent the film thickness of the contact portion of the second electrode wiring from becoming non-uniform, a relatively large area when the contact portion is viewed in plan is secured. Even if it is not, electrical connection between the second electrode wiring and the second electrode can be performed well in the contact region.

  Further, the adjacent region is a region different from the opening region between the two adjacent pixel driving signal lines, and the surface of the interlayer insulating film, which is the base of the second electrode wiring, is a flat region. A contact region may be provided. In this case, it is possible to provide a plurality of contact regions as those not limited to the planar shape or size of the opening region.

  In another aspect of the self light emitting device of the present invention, the second electrode wiring is separated from at least one of the pixel driving signal lines and the contact portion among the pixel driving signal lines wired in the adjacent region. It is formed so as to intersect at different places.

  According to this aspect, in the second electrode wiring, the intersection with the pixel driving signal line is formed at a location different from the contact portion. Further, the intersection of the second electrode wiring line with the pixel driving signal line is formed in a different layer from the pixel driving signal line. Therefore, the second electrode wiring is seen in a plan view by forming the second electrode wiring crossing the plurality of pixel driving signal lines in the adjacent region while keeping the surface of the contact portion flat. The area can be made relatively large. Therefore, the resistance in the second electrode wiring is reduced, and even when a voltage gradient occurs due to non-uniform voltage values in the second electrode wiring during driving of the self-light emitting device, the influence of each light emitting element is reduced. It is possible to suppress it to a level that does not reach the light emitting function.

  In another aspect of the self light emitting device of the present invention, the adjacent region includes at least a dummy region in which the pixel driving signal line is wired and the image display is not performed, and the contact portion is formed on the substrate. Each of the dummy regions in the dummy region, which is located between adjacent pixel driving signal lines among the pixel driving signal lines wired in the dummy region and is not formed with the first electrode in plan view. It is arranged in the opening area of the pixel.

  According to this aspect, “image display is not performed” in the dummy area includes a case where no light emission is performed in each pixel in the dummy area, and a normal image display is performed with some light emission. This includes the case where the image is not displayed or the image is meaningfully displayed by, for example, light emission or non-light emission, but is hidden by the frame or the surrounding parting.

  In this aspect, the first electrode is not formed in all the pixels in the dummy region, or in at least some of the opening regions of all the pixels. As described above, no light is emitted in the opening region of the pixel where the first electrode is not formed when the self-light-emitting device is driven. The contact portion of the second electrode wiring is disposed in at least a part of the opening region of the pixel where the first electrode is not formed. That is, since the first electrode is not formed, an opening region of a pixel in which no light emission is performed when the self light emitting device is driven is secured as a contact region. Therefore, the surface of the contact portion of the second electrode wiring can be flattened and the peripheral region can be saved.

  In the dummy region, the light emitting layer may or may not be formed in the opening region of the pixel where the first electrode is not formed. In addition, the light emitting layer may or may not be formed in the opening region of the pixel in which the first electrode is formed. Further, in the dummy area, a drive element is formed in the same manner as an effective pixel that displays an image in the image display area regardless of whether or not the first electrode and the light emitting layer are formed in the opening area of each pixel. It may or may not be formed. Here, in the dummy region, when the first electrode and the light emitting layer are formed in the opening region of the pixel, the pixel can emit light. In this case, a driving element electrically connected to the first electrode may be provided, and active driving may be performed in the pixel as in the effective pixel.

  In an aspect in which the adjacent region includes a dummy region, the light emitting layer is not formed in at least a part of the dummy region, and the contact portion is disposed in a part where the light emitting layer is not formed. You may comprise as follows.

  According to this aspect, the light emitting layer may not be formed in the opening areas of all the pixels in the dummy area, or the light emitting layer is formed in at least a part of the opening areas of all the pixels in the dummy area. It may not be done. As described above, no light is emitted in the opening region of the pixel where the light emitting layer is not formed when the self light emitting device is driven. A contact portion of the second electrode wiring is disposed in at least a part of the opening region of the pixel in which the light emitting layer is not formed. That is, since the light emitting layer is not formed, an opening region of a pixel where no light emission is performed when the self light emitting device is driven is secured as a contact region. Therefore, the surface of the contact portion of the second electrode wiring can be flattened and the peripheral region can be saved.

  In an aspect in which the adjacent region includes a dummy region, the light emitting layer is formed in at least a part of the dummy region, and the contact portion is in another part of the dummy region where the light emitting layer is not formed. You may comprise so that it may be arrange | positioned.

  According to this aspect, since the light emitting layer is not formed, an opening region of a pixel where no light emission is performed when the self light emitting device is driven is secured as a contact region. Therefore, the surface of the contact portion of the second electrode wiring can be flattened and the peripheral region can be saved.

  Here, at the time of manufacturing the self-light-emitting device, the light-emitting layer is formed by applying and drying a light-emitting material for each pixel by, for example, an inkjet method. At this time, according to the study by the inventors of the present application, it has been found that in the image display region, the time required for drying the light emitting material tends to be shortened from the vicinity of the center toward the end. As a result, the film thickness of the light emitting layer formed in each of the opening regions of the pixels arranged at the end of the image display region may be non-uniform. In this case, when the self-light-emitting device is driven, a portion where the light emitting layer has a small thickness may be short-circuited. Therefore, in addition to the image display area, for example, in the dummy area, the light emitting layer is formed up to the opening area of the pixel adjacent to the effective pixel, thereby forming the light emitting element that becomes defective in the effective pixel as described above. Can be prevented. Therefore, it is possible to improve the reliability of the self light emitting device by increasing the reliability of the effective pixels.

  In the aspect in which the light emitting layer is formed in at least a part of the dummy region, the light emitting layer is located in the image display region rather than the contact portion in the dummy region as viewed in plan on the substrate. You may comprise so that it may form in the near part.

  With this configuration, in addition to the image display area, in the dummy area, the light emitting layer is formed up to the opening area of a plurality of pixels including pixels adjacent to the effective pixel, thereby improving the reliability of the effective pixel. It becomes possible.

  In an aspect in which the adjacent region includes a dummy region, the second electrode is formed up to a portion of the dummy region that is farther from the image display region than the contact portion in plan view on the substrate. You may comprise.

  According to this aspect, the second electrode is formed, for example, by depositing a conductive metal material on the substrate using the mask. At this time, since the mask is mainly positioned with respect to the image display area, misalignment with the mask tends to occur at the end of the image display area. Therefore, the light emitting element formed in the opening area of the effective pixel arranged at the end of the image display area may be defective because the second electrode is not formed.

  In this aspect, the second electrode extends from the image display region to the adjacent region, and is formed in a portion of the dummy region farther from the image display region than the contact portion of the second electrode wiring. Thereby, the contact portion of the second electrode wiring in the image display region and the dummy region is included in the region where the second electrode is reliably formed. Therefore, it is possible to improve the reliability of the effective pixel and more reliably perform the electrical connection between the contact portion of the second electrode wiring and the second electrode.

  In another aspect of the self light emitting device of the present invention, the peripheral region further includes a drive circuit connected to at least a part of the pixel drive signal line and the second electrode wiring, and the contact portion includes When viewed in plan on the substrate, it is disposed in a portion of the adjacent area located between the drive circuit and the image display area.

  According to this aspect, at least a part of the pixel driving signal lines wired in the image display area is driven by the driving circuit. Therefore, in this aspect, since the drive circuit for driving the pixel drive signal line is formed on the substrate, it is not necessary to mount such a drive circuit as an external circuit on the substrate. The manufacturing cost of the self light emitting device can be kept low, and the self light emitting device can be further downsized.

  In this aspect, the contact portion of the second electrode wiring is disposed between the drive circuit and the image display region in the adjacent region. Here, for example, the driving circuit is provided as a data line driving circuit for driving a data line which is a pixel driving signal line, or instead of or in addition to this, a scanning line driving circuit for driving a scanning line It is provided as. The contact portion of the second electrode wiring may be provided between the data line driving circuit and the image display area. In addition to or instead of this, the scanning line driving circuit and the image display area may be provided. You may make it provide the contact part of the wiring for 2nd electrodes in the middle. Therefore, in this aspect, by securing a relatively large area when the contact portion of the second electrode wiring is viewed in a plane, it is possible to perform connection with the second electrode while securing a sufficient current capacity. It becomes.

  In another aspect of the light-emitting device of the present invention, the peripheral region further includes an external circuit connection terminal, and the contact portion is the external circuit connection terminal in the adjacent region as viewed in plan on the substrate. And the image display area.

  According to this aspect, for example, at least a part of the plurality of pixel driving signal lines wired in the image display area extends from the image display area to the peripheral area and is directly connected to the external connection terminal. In this case, the pixel drive signal line connected to the external connection terminal is driven based on a drive signal supplied from the external circuit via the external connection terminal. For example, the data line is driven based on an image signal supplied as a drive signal from an external circuit. Alternatively, the data line is driven based on a scanning signal supplied as a driving signal from an external circuit.

  In this aspect, the contact portion of the second electrode wiring is disposed between the external connection terminal and the image display region in the adjacent region. Then, a contact portion of the second electrode wiring may be provided in a part of the adjacent region where each data line is wired, and in addition to or instead of this, a contact is made in another part of the adjacent region. An area may be provided. Therefore, in this aspect, it is possible to ensure a sufficient current capacity for connection to the second electrode by ensuring a relatively large area when the contact portion of the second electrode wiring is viewed in plan. It becomes.

  In another aspect of the light-emitting device of the present invention, the light-emitting layer includes an organic EL layer.

  According to this aspect, the light emitting element is provided in each pixel unit as an organic EL element. In this case, the first electrode and the second electrode are formed as a cathode and an anode of the organic EL element. Further, in this aspect, the substrate and the first electrode are configured using a transparent material, and the second electrode is formed using an opaque conductive material such as a metal material, so that the organic EL element emits light for each pixel. The self-luminous device can be configured as a bottom emission type that emits display light from the substrate side. Alternatively, the substrate and the first electrode are configured using an opaque material, and the second electrode is formed using, for example, a transparent conductive material. The self-luminous device may be configured as a top emission type that emits as

  In order to solve the above problems, an electronic device of the present invention includes the above-described self-light-emitting device of the present invention (including various aspects thereof).

  Since the electronic device of the present invention includes the above-described self-light-emitting device of the present invention, a television, a mobile phone, an electronic notebook, a word processor, and a viewfinder type capable of improving the reliability while realizing miniaturization. Alternatively, various electronic devices such as a monitor direct-view video tape recorder, a workstation, a videophone, a POS terminal, and a touch panel can be realized. Further, as an electronic apparatus of the present invention, for example, an electron emission device (Field Emission Display and Conduction Electron-Emitter Display), an inorganic EL device, or the like can be realized.

  Such an operation and other advantages of the present invention will become apparent from the embodiments described below.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, the self-luminous device of the present invention is applied to an organic EL device.

<1: First Embodiment>
1st Embodiment which concerns on the self-light-emitting device of this invention is described with reference to FIGS.

<1-1: Overall configuration of organic EL device>
First, the overall configuration of the organic EL device will be described with reference to FIG. FIG. 1 is a schematic plan view of an organic EL device when an element substrate is viewed from a sealing substrate side. Here, an active matrix driving type organic EL device with a built-in driving circuit, which is an example of a self-luminous device, is taken as an example.

  In FIG. 1, a plurality of pixel driving signal lines are wired in an image display area 110a on the element substrate 10, and a plurality of pixel portions electrically connected to the pixel driving signal lines each have a predetermined pattern. It is arranged and formed. Each of the plurality of pixel portions includes an organic EL element. In FIG. 1, the specific configuration of the pixel drive signal line and the pixel portion in the image display area 110 a is not shown, and details thereof will be described later.

  Further, in the peripheral region located around the image display region 110a, the Y-side drive circuit unit 132 is provided along two sides of the element substrate 10 facing each other with the image display region 110a interposed therebetween, and adjacent to these two sides. An X-side drive circuit unit 152 is provided along one side. In the present embodiment, an adjacent area 110b adjacent to the image display area 110a is provided in the peripheral area. When viewed in plan on the substrate surface of the element substrate 10, in the peripheral region, the Y-side drive circuit unit 132 and the X-side drive circuit unit 152 are disposed outside the adjacent region 110b with respect to the image display region 110a. . The plurality of pixel drive signal lines extend from the image display area 110 a to the adjacent area 110 b and are electrically connected to the Y side drive circuit section 132 and the X side drive circuit section 152.

  Further, in the peripheral region, a plurality of mounting terminals 102, which are examples of “external circuit connection terminals” according to the present invention, are provided along one side of the element substrate 10 provided with the X-side drive circuit unit 152. . The wiring substrate 300 is mounted on the plurality of mounting terminals 102 by, for example, a TAB (Tape Automated Bonding) method or a COG (Chip On Glass) method. The wiring substrate 300 is provided with an external circuit that supplies various signals for driving the data line driving circuit and the scanning line driving circuit as will be described later. When mounting the wiring substrate 300 on the plurality of mounting terminals 102, as shown in FIG. 1, the wiring substrate 300 may be mounted for each predetermined number of the plurality of mounting terminals 102. The wiring substrate 300 may be mounted on the mounting terminals 102. As described above, by mounting the plurality of wiring substrates 300 on the plurality of mounting terminals 102, the size of the external circuit on the mounting side, the wiring substrate 300, and the like can be reduced. Therefore, the organic EL device can be further downsized.

  The Y-side drive circuit unit 132 is provided with a scanning line driving circuit, and for example, wiring for electrically connecting a pixel driving signal line and circuit elements in the scanning line driving circuit, and the mounting terminal 102 Wiring or the like that is electrically connected and serves as a supply path of various signals for driving the scanning line driving circuit from an external circuit is provided. The X side drive circuit unit 152 is provided with a data line drive circuit. For example, wiring for electrically connecting the pixel drive signal line and circuit elements in the data line drive circuit, and mounting terminals Wiring or the like that is electrically connected to 102 and serves as a supply path for various signals for driving a data line driving circuit from an external circuit is provided. Further, the wiring provided in the Y side driving circuit unit 132 is formed so as to extend into the X side driving circuit unit 152, and the wiring provided in the X side driving circuit unit 152 is formed so as to extend into the Y side driving circuit unit 132. Sometimes.

  In addition, in the present embodiment, a cathode wiring that is an example of the “second electrode wiring” according to the present invention is formed extending from the peripheral region other than the adjacent region 110b to the adjacent region 110b. . Although the detailed configuration of the cathode wiring is not shown in FIG. 1, the cathode wiring is electrically connected to the cathode of the organic EL element which is an example of the “second electrode” according to the present invention and the adjacent region 110b. In addition to being connected, the mounting terminal 102 is electrically connected via the X-side drive circuit unit 152 and the Y-side drive circuit unit 132. The cathode is not shown in FIG. 1, but is common to the plurality of organic EL elements formed in the image display area 110a on the sealing substrate disposed so as to face the element substrate 10, and the image display area. It extends from 110a to the adjacent region 110b and is solid.

  In the present embodiment, as described with reference to FIG. 1, the scanning line driving circuit and the data line driving circuit are included in the X side driving circuit unit 152 or the Y side driving circuit unit 132, respectively, on the element substrate 10. Therefore, it is not necessary to mount these drive circuits on the element substrate 10 as external circuits. Therefore, the manufacturing cost of the self-light-emitting device can be kept low, and the self-light-emitting device can be downsized.

<1-2: Configuration of image display area and adjacent area>
Next, in addition to FIG. 1, the configuration of the adjacent region 110b in addition to the configuration of the pixel portion in the image display region 110a of the organic EL device will be specifically described with reference to FIGS. FIG. 2 is a block diagram showing the overall configuration of the organic EL device, and FIG. 3 is a plan view of an arbitrary pixel portion in the image display area 110a in which data lines, scanning lines, anodes, light emitting layers, and the like are formed. FIG. 4 is a cross-sectional view taken along the line AA ′ of the pixel portion shown in FIG. 5 is a cross-sectional view showing the configuration of one dummy pixel portion in the adjacent region corresponding to the cross section of FIG. 4, and FIG. 6 is another dummy pixel in the adjacent region corresponding to the cross section of FIG. It is sectional drawing which shows the structure of a part. In FIGS. 3 to 6, the scales of the layers and the members are different from each other in order to make the layers and the members large enough to be recognized on the drawings.

  First, the electrical configuration of the image display area 110a of the organic EL device will be described with reference to FIG.

  The image display area 110a in the organic EL panel 100 is provided with data lines 114 and scanning lines 112, which are pixel drive signal lines, arranged vertically and horizontally, and each pixel unit 70 corresponding to the intersection is a matrix. Arranged in a shape. Further, the image display area 110 a is provided with a power supply line 117 corresponding to the pixel unit 70 arranged for each data line 114. The power supply line 117 also corresponds to a pixel drive signal line.

  In the present embodiment, in order to perform color display, for example, three types of pixel units 70 for R, G, and B are provided in the image display region 110a, and the three types of pixel units 70 are provided. Corresponding three types of data lines 114 and three types of power supply lines 117 are provided. In FIG. 2, for example, three types of pixel portions 70 are provided for every three adjacent data lines 114. Among the three data lines 114, any one of the three types of pixel units 70 is arranged on any one of the data lines 114. In addition, corresponding types of power supply lines 117 are electrically connected to the pixel units 70 arranged in this way.

  As described with reference to FIG. 1, the scanning line driving circuit 130 and the data line driving circuit 150 are provided in the peripheral region. The scanning line driving circuit 130 sequentially supplies scanning signals to the plurality of scanning lines 112 according to various signals supplied from an external circuit via the mounting terminals 102 shown in FIG. 1, and the data line driving circuit 150 Three types of image signals for R, G, and B are supplied to three types of data lines 114 wired in the display area 110a. The operations of the two types of scanning line driving circuits 130 and the operation of the data line driving circuit 150 are synchronized with each other by a synchronization signal 160 supplied from an external circuit. Further, pixel driving power is supplied from an external circuit to each of the three types of power supply lines 117 wired in the image display area 110a.

  Here, in FIG. 2, focusing on one pixel unit 70, the pixel unit 70 is provided with an organic EL element 72 and, for example, a switching transistor 76 and a driving transistor 74 configured using TFTs. In addition, a holding capacitor 78 is provided.

  The scanning line 112 is electrically connected to the gate electrode of the switching transistor 76, the data line 114 is electrically connected to the source electrode of the switching transistor 76, and the drive is connected to the drain electrode of the switching transistor 76. The gate electrode of the transistor 74 is electrically connected. The power supply line 117 is electrically connected to the source electrode of the driving transistor 74, and the anode of the organic EL element 72 is electrically connected to the drain electrode of the driving transistor 74.

  In addition to the configuration of the pixel circuit illustrated in FIGS. 2 and 3, various methods such as a current program type pixel circuit, a voltage program type pixel circuit, a voltage comparison type pixel circuit, a sub-frame type pixel circuit, etc. This pixel circuit can be employed.

  In FIG. 3, on one side of the image display region 110 a to which the data line 114 and the power supply line 117 are wired, the pixel unit 70 near the boundary between the image display region 110 a and the adjacent region 110 b, and adjacent to the pixel unit 70. The structure of a part of the adjacent region 110b is shown.

  In the present embodiment, the adjacent area 110b is a dummy area in which the data line 114, the scanning line 112, and the power supply line 117 are wired and the image display is not performed. Note that the present invention is not limited to the case where the adjacent area 110b is provided as a dummy area in this way, and the adjacent area 110b may partially include a dummy area.

  In the following, a case will be described in which no organic EL element 72 is formed and no light is emitted because no anode or organic EL layer is formed in the dummy region 110b, which is an adjacent region. However, in the present embodiment, in each pixel of the dummy region 110b, the organic EL element 72 and various transistors 76 and 74 for actively driving the organic EL element 72 are formed in the same manner as the pixel portion 70 in the image display region 110a. By doing so, some kind of light emission may be performed. That is, in this embodiment, “no image display” in the dummy area 110b is not limited to no light emission.

  The dummy area 110b includes a first partial area 110ba, a second partial area 110bb, and a third partial area 110bc. In FIG. 3, the first partial area 110ba is arranged adjacent to the image display area 110a, the second partial area 110bb is arranged outside the first partial area 110ba with respect to the image display area 110a, and the image A third partial region 110bc is arranged outside the second partial region 110bb with respect to the display region 110a. The first partial area 110ba, the second partial area 110bb, and the third partial area 110bc may be arranged so as to surround the image display area 110a. For example, in the dummy area 110b, one side of the image display area 110a is provided. It may be arranged correspondingly.

  First, the configuration of the pixel unit 70 in the image display region 110a will be described with reference to FIGS.

  For example, the semiconductor layer 3 of the switching transistor 76 and the driving transistor 74 is formed on the element substrate 10 configured using a transparent substrate such as a transparent resin or a glass substrate. The semiconductor layer 3 is formed using, for example, a low-temperature polysilicon film. On the semiconductor layer 3, the gate insulating layer 2 of the switching transistor 76 and the driving transistor 74 is formed so as to be embedded in the semiconductor layer 3. Further, the gate electrode 3 a of the driving transistor 74 and the scanning line 112 are formed on the gate insulating layer 2. A part of the scanning line 112 is formed as a gate electrode of the switching transistor 76. The gate electrode 3a and the scanning line 112 are made of a metal material containing at least one of Al (aluminum), W (tungsten), Ta (tantalum), Mo (molybdenum), Ti (titanium), copper (Cu), and the like. Is formed.

  In addition, an interlayer insulating layer 41 is formed on the gate insulating film 2 so as to fill the scanning line 112 and the gate electrode 3 a of the driving transistor 74. The interlayer insulating layer 41 and the gate insulating layer 2 are made of, for example, a silicon oxide film.

  On the interlayer insulating layer 41, for example, a data line 114 and a power supply line 117, and further a drain electrode 42 of the driving transistor 74, each made of a conductive material containing aluminum (Al) or ITO (Indium Tin Oxide), for example. Is formed. Contact holes 501 and 502 are formed in the interlayer insulating layer 41 from the surface of the interlayer insulating layer 41 through the interlayer insulating layer 41 and the gate insulating layer 2 to reach the semiconductor layer 3 of the driving transistor 74. As shown in FIG. 4, the conductive film constituting the power supply line 117 and the drain electrode 42 is continuously formed so as to reach the surface of the semiconductor layer 3 along the inner walls of the contact holes 501 and 502. .

  Here, the lower capacitor electrode of the storage capacitor 78 is formed in the same layer as the scanning line 112 using, for example, the same material, and a part of the power supply line 117 is formed as the upper capacitor electrode of the storage capacitor 78. Yes. The interlayer insulating layer 41 is formed as a dielectric film, and a part of the interlayer insulating layer 41 is sandwiched between the lower capacitor electrode and the upper capacitor electrode.

  On the interlayer insulating layer 41, for example, a silicon nitride film (SiN) is formed as the protective layer 45 by embedding the power supply line 117, the drain electrode 42, and the data line 114. On the protective layer 45, a hydrophilic layer 46 made of, for example, a silicon oxide film is formed as a layer having higher hydrophilicity than the light emitting material holding layer 47, and the light emitting material holding layer 47 is further formed on the hydrophilic layer 46. An opening region 9 a in the pixel portion 70 is formed by the hydrophilic layer 46 and the light emitting material holding layer 47. In the opening region 9 a, the anode 34 that is the “first electrode” according to the present invention is formed on the protective layer 45. The anode 34 is formed using ITO as a transparent conductive material so as to extend from the opening region 9 a and overlap with a part of the drain electrode 42. An organic EL layer 50 is formed on the anode 34 in the opening region 9a. The organic EL element 72 includes an anode 34 and a cathode 49, and an organic EL layer 50 sandwiched between the anode 34 and the cathode 49. In FIG. 4, illustration of the sealing substrate is omitted. The cathode 49 is formed using, for example, a metal material containing aluminum (Al), or calcium (Ca), lithium fluoride (LiF), strontium fluoride (SrF2), magnesium (Mg), silver (Ag). Etc. are formed as a stacked film of conductive films formed using a metal material including at least one of the above.

  When the organic EL device is driven, a scanning signal is supplied via the scanning line 112, whereby the switching transistor 76 is turned on. When the switching transistor 76 is turned on, an image signal is written to the storage capacitor 78 from the data line 114. The electrical conduction state of the driving transistor 74 is determined according to the current of the image signal written in the storage capacitor 78. Then, when a current corresponding to the image signal written in the storage capacitor 78 is supplied from the power supply line 117 to the anode 34 of the organic EL element 72 through the channel of the driving transistor 74, the current corresponding to the supplied current is supplied. The organic EL layer 50 emits light. The current applied to the cathode 49 through the organic EL layer 50 flows from the cathode 49 to the outside of the organic EL device through the cathode wiring 200 and the mounting terminal 102. In the present embodiment, as indicated by an arrow X in FIG. 4, the organic EL device is configured as a bottom emission type that emits light emitted from the organic EL element 72 as display light from the element substrate 10 side. In the present embodiment, the organic EL device may be configured as a top emission type that emits light emitted from the organic EL element 72 as display light from the sealing substrate side.

  Next, the configuration of the dummy region 110b will be described with reference to FIGS. 5 and 6 in addition to FIG. Here, the sealing substrate is not shown in FIGS. 5 and 6 as in FIG. In the present embodiment, in the organic EL device, each organic EL element 72 may be sealed by forming a sealing film on the cathode 49 instead of the sealing substrate.

  In the dummy area 110b, an opening area 9a is formed for each pixel in the first partial area 110ba, the second partial area 110bb, and the third partial area 110bc, as in the image display area 110a. In each of the first partial region 110ba, the second partial region 110bb, and the third partial region 110bc, the pixel 34 is not formed with the anode 34 or the organic EL layer 50 in the opening region 9a as described below. It is a dummy pixel that does not emit any light. FIG. 3 shows a configuration in which various transistors 74 and 76 and a storage capacitor 78 are formed in such a dummy pixel portion, similarly to the pixel portion 70 in the image display region 110a. However, since no light is emitted in the dummy pixel portion, the various transistors 74 and 76 may not be formed.

  First, the configuration of an arbitrary dummy pixel portion 70a in the first partial region 110ba will be described with reference to FIG. In FIG. 5, the organic EL layer 50 is at least partially formed in the opening region 9a in the dummy pixel portion 70a.

  Here, the organic EL layer 50 is formed, for example, by applying and drying a light emitting material by an ink jet method. At this time, according to the study by the inventors of the present application, in the image display region 110a, the time required for drying the light emitting material in the pixel portion 70 located at the end is shorter than that of the pixel portion 70 located near the center. Has been found to tend to be. Therefore, in the image display area 110a, in the pixel portion 70 arranged at the end, the film thickness of the organic EL layer 70 may be non-uniform.

  In the present embodiment, the organic EL layer 50 is formed in the dummy pixel portion 70a in the first partial region 110ba in addition to the image display region 110a. And in each pixel part 70 in the image display area 110a, as shown in FIG. 4, the organic EL layer 50 having a uniform film thickness is formed, and the organic EL layer 50 having a non-uniform film thickness is It is formed in the dummy pixel portion 70a. FIG. 3 shows a configuration in which one row of dummy pixel portions 70a is provided in the first partial region 110ba on one side of the image display region 110a to which the data line 114 and the power supply line 117 are wired. The embodiment is not limited to this configuration. That is, it is preferable that a predetermined number of dummy pixel portions 70a be provided for each pixel portion 70 in the image display area 110a to be effective pixels so that the above-described purpose can be achieved. Note that the dummy pixel portions 70b and 70c described below are not limited to the configuration shown in FIG. 3 as the dummy pixel portion 70a shown in FIG.

  In the dummy pixel portion 70a, in order to prevent a short circuit from occurring when the organic EL device is driven due to the non-uniform thickness of the organic EL layer 50, the anode 34 is not formed, so that The EL layer 50 and the drain electrode 42 of the driving transistor 74 are not electrically connected. Therefore, no light is emitted from the dummy pixel portion 70a when the organic EL device is driven.

  Therefore, in the present embodiment, it is possible to prevent a defective light emitting element from being formed due to the non-uniform thickness of the organic EL layer 50 in each pixel portion 70 in the image display region 110a.

  Next, with reference to FIG. 6, the configuration of an arbitrary dummy pixel portion 70b in the second partial region 110ba will be described. In FIG. 6, the anode 34 and the light emitting layer 50 are not formed in the dummy pixel portion 70b. Therefore, no light is emitted from the dummy pixel portion 70b when the organic EL device is driven.

  As shown in FIG. 6, the cathode wiring 200 is formed in the same layer in the second partial region 110bb, preferably using the same material as the scanning line 112 and the gate electrode 3a of the driving transistor 74. As shown in FIG. 3, it is formed to cross over one or more data lines 114 and the power supply line 117 and straddle two or more opening regions 9a. In the second partial area 110bb, on one side of the image display area 110a to which the scanning lines 112 are wired, the cathode wiring 200 crosses one or more scanning lines 112 and straddles two or more opening areas 9a. Is preferably formed. In the cathode wiring 200, a contact portion 200a that is electrically connected to the cathode 49 is disposed in the opening region 9a of the dummy pixel portion 70b. Thus, the opening region 9a in which the contact portion 200a is disposed serves as a contact region where the cathode 49 and the cathode wiring 200 are electrically connected.

  As shown in FIG. 6, in the opening region 9a serving as the contact region, the data electrode 114, the power supply line 117, and the drain electrode 42 of the driving transistor 74 are preferably connected to the same layer using the same material. 62 is formed. A contact hole 503 is formed in the interlayer insulating film 41 from the surface of the interlayer insulating film 41 to the surface of the contact part 200 a of the cathode wiring 200 through the interlayer insulating film 41. The connection electrode 62 is continuously formed in the contact hole 503 from above the interlayer insulating film 41 and is connected to the contact portion 200 a of the cathode wiring 200. A cathode 49 is formed in a superimposed manner on the surface of the connection electrode 62 exposed in the opening region 9a. Therefore, the contact part 200 a of the cathode wiring 200 is electrically connected to the cathode 49 through the connection electrode 62.

  Therefore, in this embodiment, it is possible to save the peripheral area by securing the opening area 9a formed in the second partial area 110bb as a contact area. Further, in the second partial region 110bb, the cathode wiring 200 is formed across the plurality of opening regions 9a, so that more contact regions are secured, so that the connection between the cathode wiring 200 and the cathode 49 has a sufficient current. The capacity can be secured. Therefore, in this embodiment, it is possible to satisfactorily connect the cathode wiring 200 and the cathode 49. In addition, since the area of the cathode wiring 200 viewed in plan can be made relatively large, the resistance in the cathode wiring 200 is reduced, and the voltage value in the cathode wiring 200 becomes non-uniform when the organic EL device is driven. Thus, even if a voltage gradient occurs, it is possible to suppress the influence of the voltage gradient so as not to reach the light emitting function of the organic EL element 72 in each pixel unit 70 of the image display region 110a.

  Further, since the conductive layer or the like constituting at least a part of the various transistors 76 and 74 is not formed in the opening region 9a serving as the contact region, the surfaces of the contact part 200a and the connection electrode 62 of the cathode wiring 200 are flattened. be able to. Therefore, since it is possible to prevent the film thickness of the contact part 200a of the cathode wiring 200 from becoming non-uniform, the contact can be obtained without securing a relatively large area when the contact part 200a is viewed in plan. The electrical connection between the portion 200a and the cathode 49 can be satisfactorily performed.

  Next, with reference to FIG. 3, the configuration of an arbitrary dummy pixel portion 70c in the third partial region 110bc will be described. The dummy pixel portion 70c does not emit any light when the organic EL device is driven because the anode 34 or the light emitting layer 50 is not formed.

  The cathode 49 is formed on the element substrate 10 so as to extend from the image display region 110a to the third partial region 110bc. Here, the cathode 49 is formed, for example, by vapor-depositing a conductive material on a sealing substrate using a mask. At this time, since the mask is positioned with respect to the third partial region 110bc, even if the mask is misaligned, the cathode 49 surely extends to the second partial region 110bb in the image display region 110a and the dummy region 110b. Included in the region to be formed. Therefore, in the present embodiment, it is possible to increase the reliability of effective pixels and more reliably perform electrical connection between the contact portion 200a of the cathode wiring 200 and the cathode 49.

  Therefore, in the present embodiment described above, it is possible to reduce the size of the organic EL device and increase the reliability of the pixel unit 70 in the image display region 110a, thereby improving the reliability of the organic EL device.

  In the present embodiment, the first partial region 110ba, the second partial region 110bb, and the third partial region 110bc in the dummy region 110b are not limited to the configuration shown in FIG. For example, the second partial region 110bb and the third partial region 110bc may be provided adjacent to the image display region 110a without providing the first partial region 110ba, or the first and third partial regions 110bc may be provided. Alternatively, only the second partial region 110bb may be provided. Here, the cathode 49 is formed so as to extend from the image display region 110 a to a portion farther from the image display region 110 a than the contact portion 200 a of the cathode wiring 200 when viewed in plan on the element substrate 10. As a result, even if the third partial region 110bc is not provided, the same benefits as in the present embodiment can be obtained. Further, by increasing the number of dummy pixel portions 70b included in the second partial region 110bb, each pixel portion 70 in the image display region 110a can be more reliably protected from static electricity or the like.

  In addition, the stacking order of the data line 114, the power supply line 117, the cathode 49, the cathode wiring 200, and the like on the element substrate 10 is not limited to the configuration described with reference to FIGS. Further, in the configuration of the pixel unit 70 described with reference to FIGS. 3 and 4, the cathode is formed as the “first electrode” according to the present invention for each pixel, and is opposed to the plurality of cathodes. An anode may be formed on the sealing substrate as the “second electrode” according to the present invention.

<1-3;Modification>
A modification of the present embodiment will be described with reference to FIGS. 7A and 7B are schematic plan views of the organic EL device showing the configuration of the adjacent region 110b in the present modification, and FIG. 8 is a configuration of the organic EL device in the present modification. FIG.

  As shown in FIG. 1, the adjacent region 110b is formed so as to surround the image display region 110a, and as shown in FIG. 7A, the adjacent region 110b includes the Y-side drive circuit unit 132 of the image display region 110a. May be formed on the two sides on which one is formed, or on one side of the two sides. Alternatively, as shown in FIG. 7B, the adjacent region 110b may be formed on one side of the image display region 110a where the X-side drive circuit unit 152 is formed, and in addition to or instead of this. In the same figure, the image display area 110a may be formed on one side where the X-side drive circuit unit 152 is formed and on one side facing the image display area 110a. In FIG. 1, FIG. 7A and FIG. 7B, in addition to or instead of one side of the image display area 110a where the X-side drive circuit section 152 is formed, the image display area 110a is sandwiched. An X-side drive circuit unit 152 may be further provided on the opposite side.

  Further, as shown in FIG. 8, the X-side drive circuit unit 152 and the Y-side drive circuit unit 132 are not provided on the element substrate 10, and the pixel drive signal lines are passed from the image display region 110a through the adjacent region 110b. It may be connected to the mounting terminal 102. In this case, the data line driving circuit 150 and the scanning line driving circuit 130 shown in FIG. 2 are formed as external circuits, and the wiring substrate 300 on which such external circuits are mounted is mounted on the plurality of mounting terminals 102. The

  In FIG. 8, when viewed in plan on the substrate surface of the element substrate 10, in the peripheral region, the plurality of mounting terminals 102 are along the one side of the element substrate 10, outward from the adjacent region 110 b to the image display region 110 a. Is provided. In FIG. 8, the adjacent area 110b may be provided for the image display area 110a as in FIGS. 7A and 7B. In addition, in FIG. 1, FIG. 7 (a), FIG. 7 (b), and FIG. 8, the plurality of mounting terminals 102 are in addition to or instead of one side of the element substrate 10 provided with the plurality of mounting terminals 102. You may make it provide in any one side or two sides or more among the other sides of the substrate 10.

<2; Second Embodiment>
Next, a second embodiment according to the self light emitting device of the present invention will be described. In the second embodiment, the configuration of the adjacent region 110b in the peripheral region is different from that of the first embodiment. Therefore, only differences from the first embodiment will be described in detail with reference to FIGS. 9 and 10.

  FIG. 9 shows a pixel portion near the boundary between the image display region 110a and the adjacent region 110b on one side of the image display region 110a to which the data line and the power supply line are wired, and the adjacent region 110b adjacent to the pixel portion. FIG. 10 is a plan view showing a part of the configuration, and FIG. 10 is a cross-sectional view taken along the line BB ′ of FIG. In addition, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and shown, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 9, a contact region 202 is provided between the data line 114 and the power supply line 117 that are adjacent to each other with the opening region 9a formed in the image display region 110a interposed therebetween. In the adjacent region 110 b, the cathode wiring 200 is formed across the two or more contact regions 202 so as to intersect with the one or more data lines 114 and the power supply line 117. In the adjacent region 110b, on one side of the image display region 110a to which the scanning line 112 is wired, a contact region 202 is provided between two adjacent scanning lines 112 with the opening region 9a interposed therebetween, and a cathode The wiring 200 is preferably formed so as to cross one or more scanning lines 112 and straddle two or more contact regions 202.

  Further, in FIG. 9, for example, a protection circuit 154 formed in the X-side drive circuit unit 152 is provided outside the image display region 110 a from the adjacent region 110 b.

  As shown in FIG. 10, the cathode wiring 200 is formed on the interlayer insulating film 41, and portions of the data line 114 and the power supply line 117 that intersect with the cathode wiring 200 are on the lower layer side than the cathode wiring 200. It is formed on the gate insulating film 2. As shown in FIG. 9, the data line 114 and the power supply line 117 are each formed on the gate insulating film 2 and intersected with the cathode wiring 200, and a part formed on the interlayer insulating film 41. Are electrically connected through contact holes 510 and 512.

  Here, as shown in FIG. 10, the contact region 202 corresponds to the presence or absence of a conductive film constituting at least a part of the data line 114, the power supply line 117, and the like in the interlayer insulating layer 41 that is the base of the cathode wiring 200. The surface is provided in a region where there is no unevenness and the surface is flat. The contact portion 200 a of the cathode wiring 200 is formed so that the surface thereof is exposed in the contact region 202. The cathode 49 is electrically connected to the cathode wiring 200 by being formed so as to overlap the contact portion 200 a of the cathode wiring 200.

  Therefore, in the second embodiment, the contact region 200 can be provided as being not limited to the planar shape or size of the opening region 9a. Therefore, the contact portion 200a of the cathode wiring 200 can be connected to the cathode wiring 200 with a sufficient current capacity.

<3: Electronic equipment>
Next, the case where the above-described self-light-emitting device is applied to various electronic devices will be described.

<3-1: Mobile computer>
First, an example in which this self-luminous device is applied to a mobile personal computer will be described. FIG. 11 is a perspective view showing the configuration of the personal computer. In the figure, a computer 1200 includes a main body 1204 provided with a keyboard 1202 and a display unit 1206 configured using a self-luminous device.

<3-2; Mobile phone>
Further, an example in which this self-luminous device is applied to a mobile phone will be described. FIG. 12 is a perspective view showing the configuration of this mobile phone. In the figure, a cellular phone 1300 includes a plurality of operation buttons 1302 and, for example, an organic EL device as a self-luminous device.

  In addition, the self-luminous device includes notebook personal computers, PDAs, televisions, viewfinders, monitor direct-view video tape recorders, car navigation devices, pagers, electronic notebooks, calculators, word processors, workstations, POS terminals, The present invention can be applied to an apparatus provided with a touch panel.

  The present invention is not limited to the above-described embodiments, and can be appropriately changed without departing from the gist or concept of the invention that can be read from the claims and the entire specification. Various electronic devices equipped with such a self-luminous device are also included in the technical scope of the present invention.

1 is a schematic plan view of an organic EL device when an element substrate is viewed from a sealing substrate side. It is a block diagram which shows the whole structure of an organic electroluminescent apparatus. It is a top view of the arbitrary pixel parts in image display field 110a in which a data line, a scanning line, an anode, a light emitting layer, etc. were formed. It is AA 'sectional drawing of the pixel part shown in FIG. FIG. 5 is a cross-sectional view showing a configuration of one dummy pixel portion in an adjacent region corresponding to the cross section of FIG. 4. FIG. 5 is a cross-sectional view showing a configuration of another dummy pixel portion in an adjacent region corresponding to the cross section of FIG. 4. FIGS. 7A and 7B are schematic plan views of the organic EL device showing the configuration of the adjacent region 110b in the present modification. It is a schematic plan view which shows the structure of the organic electroluminescent apparatus in this modification. It is a top view which shows the structure of the pixel part of the 2nd Embodiment near the boundary of an image display area and an adjacent area, and a part of adjacent area adjacent to this pixel part. It is BB 'sectional drawing of FIG. It is sectional drawing which shows the structure of the personal computer which is an example of the electronic device to which a self-light-emitting device is applied. It is sectional drawing which shows the structure of the mobile telephone which is an example of the electronic device to which a self-light-emitting device is applied.

Explanation of symbols

9a ... Open area 10 ... Element substrate 34 ... Anode 49 ... Cathode 50 ... Organic EL layer 102 ... Mounting terminal 110a ... Image display area 110b ... Adjacent area 112 ... Scan line 114 ... Data line 117 ... Power supply line, 200 ... Cathode wiring, 202 ... Contact region, 300 ... Wiring substrate

Claims (12)

A plurality of pixel driving signal lines wired to the image display area and an adjacent area that is adjacent to the image display area and is not displayed among peripheral areas located around the image display area on the substrate;
A plurality of first electrodes electrically connected to the pixel driving signal line and formed in an opening region for each pixel in the image display region;
A second electrode facing the plurality of first electrodes;
A light emitting layer sandwiched for each pixel between the first electrode and the second electrode;
A second electrode wiring formed on the substrate in the peripheral region and electrically connected to the second electrode;
The second electrode extends from the image display area to the adjacent area,
The second electrode wiring extends from the region other than the adjacent region to the adjacent region in the peripheral region, and has a contact portion connected to the second electrode in the adjacent region. Self-luminous device. A contact region is provided between the two pixel driving signal lines adjacent to each other across the opening region among the pixel driving signal lines wired in the adjacent region,
The contact portion is arranged in the contact region. The second electrode wiring is formed so as to intersect at least one of the pixel driving signal lines among the pixel driving signal lines wired in the adjacent region at a position away from the contact portion. The self-light-emitting device according to claim 1 or 2. The adjacent region includes at least a dummy region where the pixel driving signal line is wired and the image display is not performed.
The contact portion is positioned between adjacent pixel driving signal lines among the pixel driving signal lines wired in the dummy region when viewed in plan on the substrate, and the first electrode is formed. The self-light-emitting device according to any one of claims 1 to 3, wherein the self-light-emitting device is disposed in an opening region of each pixel in the dummy region that is not provided.   The said light emitting layer is not formed in at least one part of the said dummy area | region, The said contact part is arrange | positioned in the part in which the said light emitting layer is not formed. Self-luminous device.   The light emitting layer is formed in at least a part of the dummy region, and the contact portion is disposed in another part of the dummy region where the light emitting layer is not formed. The self-light-emitting device according to 4 or 5. 7. The self light emitting layer according to claim 6, wherein the light emitting layer is formed in a portion of the dummy area closer to the image display area than the contact portion when viewed in plan on the substrate. Light emitting device. The second electrode is formed in a portion of the dummy region farther from the image display region than the contact portion when viewed in plan on the substrate. The self-light-emitting device according to any one of the above. A drive circuit connected to at least a part of the pixel drive signal line and the second electrode wiring in the peripheral region;
The contact portion is disposed in a portion of the adjacent region located between the drive circuit and the image display region when viewed in plan on the substrate. The self-light-emitting device according to any one of the above. The peripheral area further comprises an external circuit connection terminal,
2. The contact portion is disposed in a portion of the adjacent region located between the external circuit connection terminal and the image display region when viewed in plan on the substrate. The self-luminous device according to any one of 1 to 9.   The self-light-emitting device according to claim 1, wherein the light-emitting layer includes an organic EL layer. An electronic apparatus comprising the self-luminous device according to any one of claims 1 to 11.

Images