KR20120057482A - Display device, method for manufacturing display device, and display - Google Patents

Abstract

PURPOSE: A display device and a manufacturing method thereof are provided to easily pick a wire between an image signal output circuit and an electrode terminal of a drive control circuit by arranging the drive control circuit between neighboring pixels. CONSTITUTION: A display panel(1) comprises a front side substrate(7) and a rear side substrate(6) facing to the front side substrate. The pixel is arranged between the front side substrate and the rear side substrate as a matrix shape. A plurality of drive control circuits(10a,10b) controls drive of the pixel. A plurality of wires connects the plurality of drive control circuits and each pixel. A plurality of electrode terminals(12) inputs an image signal from outside to the plurality of drive control circuits.

Description

Display device, manufacturing method thereof, and display {DISPLAY DEVICE, METHOD FOR MANUFACTURING DISPLAY DEVICE, AND DISPLAY}

The present invention is, for example, a large display (tiling display) configured by arranging a plurality of liquid crystal display (LCD) panels, plasma display panels (PDPs), electro luminescent (EL) display panels, and the like. The present invention relates to a display device for use in the same, a method for manufacturing the same, and a display.

In recent years, large displays have become a mainstream method in which a large number of light emitting diodes (LEDs) are arranged and enlarged. In such an LED-type large display, the array density of the LED increases with high resolution, and the cost increases. On the other hand, in order to realize a tiling display at low cost, a method of arranging a plurality of flat panel displays (for example, LCD panels, PDPs, EL display panels, etc.) as display devices (or display units) in a matrix form is effective.

The conventional display device constituting such a large display has a front substrate made of a glass plate or the like and a back substrate (Patent Document 1). The front substrate and the back substrate face each other at a predetermined interval, and a plurality of pixels and a plurality of electrodes for controlling them are disposed therebetween, and a light emitting layer or a liquid crystal layer is further formed, and the encapsulation portion is surrounded. I seal it with). Although a control signal including a scan signal and a data signal is applied to the plurality of electrodes from the driving control circuit, the wiring extraction method for applying the control signal to the electrode is a step in the periphery of the display device, that is, at the joint portion of the adjacent display device. A section is provided, the cross-sectional wiring extraction method (FIG. 3 of patent document 1) which connects wiring to the electrode terminal of this step part, and a back surface board | substrate are divided | segmented, and the groove part is provided in the center part, and the electrode provided in the groove part There is a central wiring extraction method for providing wiring in a terminal (Fig. 1 of Patent Document 1). By such a connection method, an anisotropic conductive film, or a conductive paste made of Ag, Cu, carbon, or the like, or solder is used as a method of connecting wiring to an electrode terminal, and external drive control from the electrode terminal is performed. The circuit is electrically connected.

[Prior Art Literature]

[Patent Document]

[Patent Document 1] Japanese Unexamined Patent Application Publication No. 2008-191502 (FIGS. 1 and 3)

In conventional wiring extraction, the electrode terminal corresponding to at least one row of pixels and one row of pixels is provided for each pixel having a drive control circuit provided externally and arranged in matrix in the longitudinal and transverse directions in the panel and having RGB. It was necessary to provide a wiring corresponding to an electrode terminal for applying a control signal such as a scan signal or a data signal. In this system, however, the wiring extraction needs to be made depending on the number of pixels in the vertical and horizontal directions. As the number of wiring extraction increases, the manufacturing method becomes complicated, resulting in poor workability and lowering the yield. In addition, when the pixel pitch is narrowed, the density of the number of wiring lead-outs increases and the wiring pitch is narrowed, which causes a problem that wiring take-out becomes remarkably difficult.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and by arranging a drive control circuit between a plurality of pixels adjacent to each other, wiring between each pixel and the drive control circuit is not required to take out wiring, thereby improving workability and yield. For this reason, it is an object of the present invention to provide a display device, a method of manufacturing the same, and a display in which wiring is easily taken out between the drive control circuit and the video signal output circuit even when the pixel pitch is small.

A display device according to the present invention includes a front substrate and a back substrate facing the front substrate; A plurality of pixels arranged in a matrix between the front substrate and the back substrate, the display or non-display state being selected; A plurality of drive control circuits for controlling the driving of the pixel; A plurality of wirings connecting the drive control circuit and the pixels; And a plurality of electrode terminals of the drive control circuit to which an image signal is input, wherein the drive control circuit is disposed between a plurality of neighboring pixels, wherein the front substrate and the back substrate are the pixels, the drive control circuit, The wiring connecting the drive control circuit and the respective pixels and the electrode terminal of the drive control circuit are bonded to each other, and the back substrate is formed at a position corresponding to the electrode terminal. An opening is provided to expose the terminal, and wiring is taken out from the electrode terminal exposed by the opening to be connected to the video signal output circuit.

In addition, the display device according to the present invention includes a front substrate and a protective film formed on the front substrate; A plurality of pixels arranged in a matrix between the front substrate and the passivation layer, wherein a display or non-display state is selected; A plurality of drive control circuits for controlling the driving of the pixel; A plurality of wirings connecting the drive control circuit and the pixels; And a plurality of electrode terminals of the drive control circuit to which an image signal is input, wherein the drive control circuit is disposed between a plurality of pixels adjacent to each other, wherein the front substrate and the passivation layer are the pixels, the drive control circuit, and the A drive control circuit and the wiring for connecting each pixel, and the electrode terminal of the drive control circuit are interposed therebetween, and the opening is provided in the protective film so that the electrode terminal is exposed at a position corresponding to the electrode terminal; The wiring is taken out from the electrode terminal exposed by the opening to be connected to the video signal output circuit.

In the display according to the present invention, a plurality of the display devices are arranged in a matrix and enlarged.

Moreover, in the manufacturing method of the display apparatus which concerns on this invention, the said drive control circuit is a drive control integrated circuit, and it connects the said drive control integrated circuit with the said wiring connected to the said pixel by the heat-compression method by an anisotropic conductive film. It is.

According to the display device of the present invention, by arranging a drive control circuit between a plurality of pixels adjacent to each other, the wiring between each pixel and the drive control circuit is not required to take out wiring, thereby improving workability and yield, For this reason, even when the pixel pitch is small, wiring extraction between the electrode terminal of the drive control circuit and the video signal output circuit becomes easy.

Moreover, by using a protective film as a back substrate, the opening of the protective film corresponding to the electrode terminal of the drive control circuit into which the video signal is input can be formed relatively small in step, and from the electrode terminal exposed by the opening. When taking out the wiring, it is possible to reduce the manufacturing cost by reducing the number of manufacturing steps and to improve the quality of the wiring extraction section.

In addition, since the number of wire drawing outs can be reduced as a whole, the non-display area serving as a seam can be made small, and the width of the seam between the display devices can be made small. Discontinuities in pixel pitches between display devices that cause deterioration in image quality can be improved to provide a tiling display with improved display quality.

1 is a plan view of a display device according to Embodiment 1 of the present invention.
2 is a perspective view of a display device according to the first embodiment.
3 is a perspective view illustrating another display device according to the first embodiment.
4 is a plan view showing the arrangement of the pixels and the formation position of the drive control circuit in the first embodiment.
FIG. 5 is an enlarged plan view illustrating a relationship between a pixel and an aggregated pixel according to the first embodiment.
6 is a cross-sectional view showing various openings in the display device of Embodiment 1. FIG.
7 is a perspective view of a display device according to a second embodiment.
FIG. 8 is a cross-sectional view of the opening viewed in the A direction in Embodiment 2. FIG.

Embodiment 1.

1 is a plan view of a display device according to Embodiment 1 of the present invention. 2 is a perspective view of a display device according to the first embodiment. 3 is a perspective view illustrating another display device according to the first embodiment. 4 is a plan view showing the arrangement of the pixels and the formation position of the drive control circuit in the first embodiment. FIG. 5 is an enlarged plan view illustrating a relationship between a pixel and an integrated pixel as another example in Embodiment 1. FIG. In addition, in each drawing, the same code | symbol shows the same or equivalent part, and abbreviate | omits description. A large number of display devices are arranged in a matrix to form a flat display of an enlarged screen. The display device is, for example, an LCD panel, a PDP, an EL display panel, or the like. 1, 2, and 3 show the display device as viewed from the back side (back substrate 6 side), and light is emitted from the front substrate 7 side.

In Embodiment 1, as a display apparatus used for a tiling display, it demonstrates below using the manufacturing method of a bottom emission type organic electroluminescent display panel as an example. The organic EL display panel 1 has a front substrate 7 and a back substrate 6 facing the front substrate 7. Between the front substrate 7 and the back substrate 6, pixels 8 of a set of RGB pixels are arranged in a matrix. The display panel 1 controls the display state of the pixel 8 corresponding to each of the plurality of aggregated pixels 13 collected by two or more pixels 8 adjacent to the row or column direction and each pixel 8. A plurality of drive control circuits 10 (10a, 10b) disposed between the active element 9 and the collection pixel 13 or between the pixels 8 to control driving of the active element 9, and a drive control circuit A plurality of wirings 11a connecting the 10 and the active elements 9 of the pixels 8, a plurality of wirings 11b connecting the active elements 9 of the pixels 8, and driving The control circuit 10 has a plurality of electrode terminals 12 for inputting video signals from the outside.

The front substrate 7 and the back substrate 6 are interposed between the pixel 8, the active element 9, the drive control circuit 10, the respective wirings 11 (including 11a and 11b) and the electrode terminal 12. It is put together and is comprised. In addition, 2 is a flexible board, 3 is a connector, 4 is a video signal output circuit, and 5 is an opening.

As the active element 9 formed in each pixel 8 (specifically, an active element provided for each pixel of RGB), TFTs generally used in an active LCD panel, an active organic EL display panel, or the like can be used. What is necessary is just to be able to control the display state of the pixel 8, and it does not specifically limit a manufacturing method, a position to arrange | position, etc. Similarly with respect to the drive control circuit 10, a manufacturing method which is formed at the same time as the manufacturing process of the active element 9 formed in each pixel 8 is widely known, and the driving of each pixel 8 can be controlled. It does not specifically limit a manufacturing method etc. as long as it has the function which can be carried out. The electrode terminal 12 is not particularly limited to the forming method and the material, and may be formed of the same material as that of a part of the pixel 8, for example.

Next, in Embodiment 1, the arrangement | positioning of the pixel 8 and the formation position of the drive control circuit 12 are demonstrated using FIG. 4 and FIG. 4 and 5 show the display element viewed from the surface (light emitting surface) on the front substrate 7 side. The arrangement of the pixels 8 is arranged at a so-called uneven pitch in which the interval T1 between the aggregated pixel 13 and the aggregated pixel 13 is wider than the interval T2 between the pixel 8 and the pixel 8. It is. For this reason, the area for arranging the drive control circuit 10 can be secured between the set pixel 13 and the set pixel 13, and the drive control circuit 10 has no light emission between the set pixels 13. By being formed in the area, it is comprised so that it may not be accompanied by the fall of the brightness | luminance by reduction of the light emitting area equivalent to an aperture ratio in LCD etc. In addition, the drive control circuit 10 may be formed between the pixels 8. As shown in FIG. 4, the drive control circuit 10a is arrange | positioned between the pixel 13 of a column direction, and the electrode control 12 (eight in FIG. 4) is provided in the drive control circuit 10a. . The drive control circuit 10b is disposed between the collective pixels 13 in the row direction, and electrode terminals 12 (four in Fig. 4) are provided in the drive control circuit 10b. In addition, the drive control circuit 10 includes drive control circuits 10a and 10b.

In Embodiment 1, the manufacturing method of a bottom emission type organic electroluminescent element is demonstrated. The bottom emission type organic EL device generally includes a transparent front substrate, a transparent electrode such as ITO, an auxiliary electrode for reducing wiring resistance of the transparent electrode, an insulating film formed by separating the pixels to cover the auxiliary electrode, The organic layer which consists of a positive hole transport material layer, a light emitting layer, an electron carrying layer, etc., and a reflective electrode (for example, Al etc.) are laminated | stacked one by one, and is formed and comprised the pixel. Light passes through the transparent electrode from the light emitting layer and is emitted from the front substrate side. The pixel electrode (transparent electrode) and the reflective electrode are not particularly limited to the formation method or material. In addition, the auxiliary electrode is not limited to the formation method or material in the same manner, and may be formed by laminating low-resistance metals such as Al, Cr, and Ag in order to lower the resistance.

Next, the manufacturing method of a bottom emission type organic electroluminescent display panel (display apparatus) in Embodiment 1 is demonstrated. The organic EL display panel uses glass for the front substrate 7 and the back substrate 6, and the back substrate 6 is etched or sand blasted on the side opposite to the organic EL element formation surface of the front substrate 7. A recess is formed from a sand blast or the like, and is bonded to face the formation surface of the recess of the back substrate 6 and the organic EL element formation surface of the front substrate 7 to face each other.

Both substrates are bonded to each other by an adhesive or the like at the encapsulation portion in order to prevent moisture from entering into the encapsulation space, and deterioration of organic EL elements such as moisture is caused in the encapsulation space between the two substrates due to the recesses provided in the back substrate 6. ) Desiccant is installed to protect from printing.

As shown to FIG. 2, FIG. 4, the back surface board 6 has the electrode terminal 12 in the position corresponding to the electrode terminal 12 of the drive control circuits 10a and 10b provided between the assembly pixels 13, respectively. ), An opening 5 is provided so that the electrode terminal 12 and the external video signal output circuit 4 are electrically connected through the connector 3 by the metal wiring 14 or the like. The opening 5 is formed by the method of etching, sandblasting, dicing, etc., for example. In FIG. 3, the opening 5 corresponding to the electrode terminal 12 of the drive control circuits 10a and 10b has a groove shape.

6 is a cross-sectional view showing various openings in the display device of Embodiment 1. FIG. As shown in FIG. 6A, the upper portion of the opening 5 of the back substrate 6 is formed to have the same width as the lower portion, but in order to facilitate the connection process from the electrode terminal 12, FIG. As shown in b), the cross-sectional shape of which the upper part is wider than the lower part may be formed in V shape, and as shown in FIG.6 (c), it may be a staircase shape and does not specifically limit a shape. In addition, the sectional drawing of the opening 5 corresponding to FIG. 1 and FIG. 2 is FIG. 6 (a), for example, and the sectional drawing of the opening 5 corresponding to FIG. 3 is FIG. 6 (b) or FIG. 6, for example. (c).

The periphery of the opening 5 is sealed by an adhesive or the like in the sealing portion. The metal wiring 14 connected to the electrode terminal 12 exposed by the opening 5 is connected to the video signal output circuit 4 via the connector 3. In Embodiment 1, the metal wiring 14 between the electrode terminal 12 and the video signal output circuit 4, and the part to which the electrode terminal 12 is exposed are formed by the moisture proof coating agent. It may be covered. For this reason, generation | occurrence | production of defects, such as electrical corrosion and ion migration in an exposed metal part, can be suppressed. A moisture proof coating agent can use what is marketed generally, What is necessary is just a material which has the function of insulation and moisture proofness, and does not limit the material and the kind. The thickness to be formed and the formation method are not particularly limited, and those cured by ultraviolet rays, heat, moisture, or natural drying can be used.

Next, in the first embodiment, the formation method using the conductive paste and the flexible substrate will be described with respect to the metal wiring connecting the electrode terminal 12 of the opening 5 and the connector 3 of the video signal output circuit 4. do. In the flexible substrate 2, wirings are formed in advance according to the number of outputs of the video signal output circuit 4, and portions connected to the conductive paste 17 (Fig. 6) and the connector 3 (ends of the flexible substrate) The metal wiring 14 is exposed, and the exposed portion is treated to prevent corrosion such as Au plating. This flexible board | substrate 2 is fixed to the back surface board | substrate 6 using the film adhesive which has thermosetting.

The flexible substrate 2 should just be generally used for an LCD panel, a PDP, and an EL display panel, and does not limit the material, thickness, etc. which comprise especially. Moreover, the flexible board | substrate 2 is a board | substrate which has the metal wiring 14 between the polyimide films of both sides, It is good to be fixed to the back surface board | substrate 6 with the material which has adhesiveness, and it can use the film which has thermosetting as an adhesion method. It is not limited to the method and material to be used. Thereafter, the conductive paste 17 is dispensed so as to connect the electrode terminal 12 and the metal wiring 14 at the end of the exposed flexible substrate 2 through the opening 5 of the organic EL display panel. ), And the conductive paste 17 is cured by heat treatment.

The electrically conductive paste 17 does not specifically limit a formation method or a connection material, but has the function of electrically connecting between the electrode terminal 12 and the metal wiring 14 of the flexible substrate 2 via the opening 5. What is necessary is just to use, for example, the material which made Ag, Cu, carbon, etc. into paste shape can be used. In addition to the method of using the conductive paste 17, the same function can be obtained by, for example, a connection method by wire bonding, soldering, anisotropic conductive film, or the like. Since it can be electrically connected to 12 relatively easily, it can be said to be a preferable method.

As the method of forming the conductive paste 17, the dispenser application was described as an example. For example, the conductive paste 17 can also be formed by a method using pressure film printing or a method using an inkjet. The metal wire 14 on the other end of the flexible substrate 2 which is not in contact with the conductive paste 17 is connected to the external video signal output circuit 4 via the connector 3. In addition, what is necessary is just to be electrically connected about the connection of the flexible board | substrate 2 and the video signal output circuit 4, and it does not specifically limit the method.

As described above, according to the display device of the first embodiment, by arranging a drive control circuit between a plurality of pixels adjacent to each other, the wiring between each pixel and the drive control circuit becomes unnecessary, and thus the workability and yield are improved. It can be greatly improved. Since wiring extraction between each pixel and the driving control circuit is unnecessary, wiring extraction between the electrode terminal of the driving control circuit and the video signal output circuit becomes easy even when the pixel pitch is small. In addition, it is possible to take out wiring using metal wiring, which is relatively easy to form, to the electrode terminal of the drive control circuit, and to greatly improve workability and yield. Also, it is possible to provide a display device with good display quality.

In addition, since the number of wires taken out as a whole can be reduced, the non-display area serving as a seam can be made small, and the width of a seam between display devices can be made small, so that image quality can be achieved when the display devices are arranged and tiled. It is possible to provide a tiling display in which the discontinuity of pixel pitches between the display devices, which causes deterioration, is improved, and the display quality is improved. Further, the organic EL display panel of Embodiment 1 also has a feature that the power consumption can be reduced because the wiring length between each pixel and the drive control circuit is shortened.

Embodiment 2.

7 is a perspective view of a display device according to a second embodiment. Instead of the glass back substrate, the organic EL element is sealed by the protective film 16 formed of the inorganic film. Although it is also conceivable to arrange the drive control circuit on or outside the protective film 16 formed of the inorganic film and to connect the drive control circuit and each pixel by wiring, in the second embodiment, the glass back substrate 6 made of the first embodiment is formed. The organic EL element is encapsulated by the protective film 16 formed of the inorganic film instead. Therefore, the drive control circuit 10 is disposed between the plurality of pixels 8 adjacent to each other. Although the protective film 16 generally uses inorganic films, such as SiN and SiON, what is necessary is just to have a function which prevents penetration of moisture similarly to the back surface board 6, For example, a resin film, a resin film, an inorganic film, etc. A resin film, a very thin glass substrate, and the like, may also be used, and the method of forming the material and the material thereof are not particularly limited. In addition, when the opening 5 corresponding to the electrode terminal 12 provided in the protective film 16 is provided with the opening 5 in SiN, it is masked at the time of etching or SiN formation, for example. Although opening is performed by a method or the like, an opening method most suitable for the type of the protective film 16 may be used.

As for the wiring extraction method, there is a method using a flexible substrate and a conductive paste bonded to the protective film 16 in the same manner as in the first embodiment. Or FIG. 8 is sectional drawing when the opening part 5 of FIG. 7 is seen in A direction. In addition to the method using the flexible substrate 2 having the metal wiring 14 and the anisotropic conductive film 18, the flexible substrate 2 having the metal wiring 14, the wire bonding, and the flexible substrate having the metal wiring 14. (2) and the method by solder etc. can be used. In addition, since the protective film 16 is thinner than the glass back surface substrate, and the step difference of the opening 5 can be made smaller, since limitations, such as a wiring extraction method and a wiring extraction position, become small, a flexible substrate and an anisotropic conductive film Also, electrical bonding can be obtained relatively easily by wire bonding and soldering.

Moreover, in the method using the flexible substrate 2 and the anisotropic conductive film 18 which have the metal wiring 14, the non-display area used as a seam can be made small, and the width of the seam between display apparatuses can be made small. In the case of tiling display by arranging the display devices, discontinuity of pixel pitches between display devices that cause deterioration of image quality is improved, and a tiling display having improved display quality can be obtained.

This structure eliminates the glass backside substrate, greatly reducing the step height of the wiring lead-out portion, eliminating the need for a special tool for replenishing the step, and reducing the number of manufacturing steps, thereby reducing manufacturing costs. In addition, the quality of wiring extraction can be improved. Moreover, since the restriction | limiting according to the formation method is eliminated with respect to the formation place of a wiring lead-out part, wiring take-out is comparatively easy by an arbitrary place and an arbitrary method, and since an opening can be manufactured with a narrow pitch, high precision tiling Also suitable for displays.

Embodiment 3.

In the display apparatus using the organic EL display panel of Embodiment 3, in Embodiment 1 or 2, the active element which controls the display state of a pixel is provided in the drive control circuit arrange | positioned between aggregation pixels. By configuring in this way, since an active element is unnecessary at the position of the pixel of an organic electroluminescent display panel, in addition to the effect of Embodiment 1 and 2, light emission area can be enlarged and visibility is improved.

Embodiment 4.

In the display device using the organic EL display panel of Embodiment 4, in Embodiment 1, 2 or 3, the drive control circuit disposed between the collective pixels is not used by an active element formed by a thin film formation process such as TFT, but separately. The manufactured drive control integrated circuit (IC) is arrange | positioned between collective pixels, and it is comprised by connecting to the wiring connected to each pixel by the heat-compression method by an anisotropic conductive film. By configuring in this way, the manufacturing method of an organic electroluminescent display panel can be simplified, and in addition to the effect of Embodiment 1, 2 or 3, a yield can be improved and a high precision organic electroluminescent display panel can be obtained at low cost. have.

As mentioned above, although embodiment was demonstrated about the display apparatus using an organic electroluminescent display panel, it cannot be overemphasized that it can apply to LCD panel and PDP similarly.

1 organic EL display panel
2 flexible substrate
3 connectors
4 video signal output circuit
5 opening
6 back side board
7 front board
8 pixels
9 active elements
10 drive control circuit
11 wiring
12 electrode terminals
13 assembly pixel
14 metal wiring
16 Shield
17 conductive paste
18 anisotropic conductive film

Claims (7)

A front substrate, a back substrate facing the front substrate,
A plurality of pixels arranged in a matrix between the front substrate and the back substrate, wherein a display or non-display state is selected;
A plurality of drive control circuits for controlling the driving of the pixels;
A plurality of wirings connecting the drive control circuit and the pixels;
Has a plurality of electrode terminals of the drive control circuit to which a video signal is input;
The drive control circuit is disposed between the plurality of pixels neighboring each other,
The front substrate and the back substrate are bonded together with the pixel, the drive control circuit, the wiring for connecting the drive control circuit and the respective pixels, and the electrode terminal of the drive control circuit interposed therebetween. Composed,
And an opening is formed in the rear substrate so that the electrode terminal is exposed at a position corresponding to the electrode terminal, and a wire is taken out from the electrode terminal exposed by the opening and connected to an image signal output circuit. A front substrate, a protective film formed on the front substrate,
A plurality of pixels arranged in a matrix between the front substrate and the passivation layer, wherein a display or non-display state is selected;
A plurality of drive control circuits for controlling the driving of the pixels;
A plurality of wirings connecting the drive control circuit and the pixels;
Has a plurality of electrode terminals of the drive control circuit to which a video signal is input;
The drive control circuit is disposed between the plurality of pixels neighboring each other,
The front substrate and the passivation film are configured with the pixel, the drive control circuit, the wiring for connecting the drive control circuit and the respective pixels, and the electrode terminal of the drive control circuit interposed therebetween,
And the opening is provided in the passivation layer so that the electrode terminal is exposed at a position corresponding to the electrode terminal, and a wire is taken out from the electrode terminal exposed by the opening to be connected to an image signal output circuit. The method according to claim 1 or 2,
And each of the pixels is provided with an active element for controlling the display state of each of the pixels, and the active element of the respective pixel and the driving control circuit are connected to each other. The method according to claim 1 or 2,
A display device for controlling a display state of each pixel and having an active element corresponding to each pixel provided in the drive control circuit. The method according to claim 1 or 2,
And a drive control circuit disposed between an aggregated pixel formed of a plurality of the pixels and an aggregated pixel adjacent to the aggregated pixel. A display in which a plurality of display devices according to claim 1 or 2 are arranged in a matrix form and enlarged. A front substrate, a protective film formed on the front substrate,
A plurality of pixels arranged in a matrix between the front substrate and the passivation layer, wherein a display or non-display state is selected;
A plurality of drive control circuits for controlling the driving of the pixels;
A plurality of wirings connecting the drive control circuit and the pixels;
Has a plurality of electrode terminals of the drive control circuit to which a video signal is input;
The drive control circuit is disposed between the plurality of pixels neighboring each other,
The front substrate and the passivation film are configured with the pixel, the drive control circuit, the wiring for connecting the drive control circuit and the respective pixels, and the electrode terminal of the drive control circuit interposed therebetween,
The protective film is provided with an opening so that the electrode terminal is exposed at a position corresponding to the electrode terminal, a wire is taken out from the electrode terminal exposed by the opening, and is connected to a video signal output circuit.
The drive control circuit is a drive control integrated circuit, and the drive control integrated circuit is made to be connected to the wiring connected to the pixel by a heat compression method using an anisotropic conductive film.

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