JP2006224697A - Display module of mobile body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display module of a mobile body capable of displaying different images, while reducing power consumption, improving data transferring speed and improving the yield. <P>SOLUTION: In this display module 1 of a mobile body, three organic EL panels 2, 3 and 4 for displaying different images are fitted to one base plate in parallel with each other. Adjacent panels of the three organic EL panels 2-4 are arranged so that a non-display area in the periphery of a display area 14 thereof are overlapped with each other in planar relationship. The center organic EL panel 2 is arranged to be displaced upward more than the right and the left organic EL panels 3 and 4. Since the three organic EL panels 2, 3 and 4 display different images, useless power consumption of each of the panels are reduced, and data transferring speed is increased. Furthermore, the yield of each of the organic EL panels 2, 3 and 4 is improved. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a display module for a moving body that is mounted on a moving body such as a vehicle such as an automobile, an aircraft, a ship, and a train, and displays the speed of the moving body, the engine speed, map information of a navigation device, and the like.

2. Description of the Related Art Conventionally, as a vehicle information display device mounted on an instrument panel of a vehicle such as an automobile, a device that displays a plurality of displays in a single screen (multi-display device) constituted by a liquid crystal display device is known. (See Patent Document 1). In such a vehicle information display device, for example, as shown in FIG. 18, a single liquid crystal panel 200 is used. In this liquid crystal panel 200, a first display unit 201 as a speedometer for displaying the speed, a second display unit 202 as a tachometer for displaying the engine speed, map information of the car navigation device, and the like are displayed. Three types of display are performed by the third display unit 203. In FIG. 18, reference numeral 200a indicates the display area of the liquid crystal panel 200, and reference numeral 200b indicates the non-display area. FIG. 18 is an explanatory diagram showing a state of actual display by a conventional vehicle information display device. In FIG. 19, three display portions 204 to 206 used for actual display in the display area 200 a of the liquid crystal panel 200 in the vehicle information display device are indicated by hatching.
JP 2004-291731 A

  By the way, since the conventional vehicle information display device as described in Patent Document 1 has a configuration in which a plurality of displays are made in one liquid crystal panel 200, there are the following problems.

  Of the display area 200a of one liquid crystal panel 200, the area used for actual display is the three display units 204 to 206 shown in FIG. 19, which is about 44% of the display area 200a. In this way, although only a part (about 44%) of the display area 200a of the liquid crystal panel 200 is used, the drive circuit also works for the unused area of the display area 200a, and the display including the unused area is displayed. The entire area 200a is scanned. Therefore, useless power consumption of the panel is large and the data transfer rate is slow. Moreover, the ratio of the number of effective use pixels is small.

  -Since the liquid crystal panel 200 is large, the yield is poor. This is because one liquid crystal panel 200 is large, and when a plurality of liquid crystal panels are taken from one large panel, there is a high probability that pixel defects will occur in each of the plurality of taken panels. This is because the number of panels that can be taken from the panel is reduced.

  The present invention has been made paying attention to such a conventional problem, and its purpose is to make it possible to display different images while reducing power consumption, improving data transfer speed, and improving yield. It is to provide a body display module.

The display module of the moving body in the present invention is summarized in that a plurality of electroluminescence panels that display different images are arranged side by side on a panel support member.
According to this, the image of a different display mode can be simultaneously displayed by each of several electroluminescent panel. For example, when mounted on an instrument panel of a vehicle such as an automobile, different images such as a speedometer, a tachometer, a television image, and map information of a car navigation device can be simultaneously displayed by a plurality of electroluminescence panels. In addition, since different images are displayed by a plurality of electroluminescent panels mounted side by side on the panel support member, the ratio of the unused area to the display area is reduced, so that unnecessary power consumption of each panel is reduced and data transfer is performed. Increases speed. Moreover, the ratio of the number of effective use pixels becomes large. In addition, the yield of the electroluminescence panel is improved. This is because the size of each electroluminescence panel is smaller than the case where a plurality of displays are made on one liquid crystal panel of the above prior art, so when taking a plurality of each electroluminescence panel from one large panel, a plurality of This is because the probability of pixel defects occurring in each individual panel to be taken is reduced, and the number of panels that can be taken from one large panel is increased. Furthermore, since it is an electroluminescence panel, display with high contrast and high visibility is possible. Therefore, a mobile display module capable of displaying different images while reducing power consumption, improving data transfer speed, and improving yield can be realized.

  In this mobile display module, an adjacent panel among the plurality of electroluminescence panels is planarly overlapped with a non-display area around a display area in which a plurality of pixels each having an electroluminescence element are two-dimensionally arranged. The gist is that they are arranged as described above. According to this, the display area (active area) of adjacent panels can be brought closer. This improves visibility when viewing a plurality of electroluminescence panels. In particular, when mounted on an instrument panel of a vehicle such as an automobile as a moving body and displaying a speedometer and a tachometer in the display area of adjacent panels, the speedometer display area and the tachometer display area are taken into consideration for visibility. Can be arranged at an optimum interval. Further, since the size of the entire display module of the moving body, particularly the size in the direction in which the plurality of electroluminescence panels are arranged, becomes small, it is possible to mount in a narrow mounting space.

  In this mobile display module, the number of the plurality of electroluminescence panels is three or more, and the gist is that the central electroluminescence panel is shifted upward from the left and right electroluminescence panels. According to this, when the speedometer is displayed on an important image, for example, a vehicle such as an automobile, by the center panel among the plurality of electroluminescence panels, the visibility of the speedometer is improved. Here, the “central electroluminescence panel” refers to the middle panel when the plurality of electroluminescence panels is an odd number of 3 or more.

  In this mobile display module, each of the plurality of electroluminescence panels has a vertically long shape, and is arranged such that the center electroluminescence panel is horizontally oriented and the left and right electroluminescence panels are vertically oriented. To do. According to this, since the mounting dimension of the display module in the height direction (vertical direction) becomes small, when mounted on an instrument panel or the like of a moving body, the instrument panel of the moving body with restrictions on the dimension in the height direction Easy to attach to.

  In this mobile display module, the panel support member is a base plate attached to an instrument panel of the mobile body. According to this, the mounting to a moving body becomes easy by attaching the base plate to which the plurality of electroluminescence panels are fixed to the instrument panel of the moving body.

In this moving body display module, the base plate is a plate having a flat panel mounting surface to which the plurality of electroluminescence panels are fixed, and the plurality of electroluminescence panels are fixed to the back side of each electroluminescence panel. The gist is to be fixed to the panel mounting surface through the mounting base. According to this, the height position from the panel mounting surface of each panel can be changed by changing only the thickness of the mounting base of each panel. For example, when there are three electroluminescence panels, the non-display areas (so-called frame portions) of adjacent panels overlap in a plane by making the thickness of the mounting base of the middle panel thicker than the mounting bases of the left and right panels. Such an arrangement becomes possible. Here, the “back surface of the electroluminescence panel” refers to a surface opposite to a surface from which light from the electroluminescence element is emitted.

  In this mobile display module, the base plate is a plate having a plurality of panel mounting surfaces to which the back surfaces of the plurality of electroluminescence panels are respectively fixed. According to this, by arranging the heights of the plurality of panel mounting surfaces of the base plate to be different, it is possible to arrange such that the non-display areas of adjacent panels of the plurality of electroluminescence panels overlap in a plane. For example, when there are three electroluminescent panels, the height of the middle panel mounting surface of the base plate is made higher than the left and right panel mounting surfaces, so that the middle panel non-display area and the left and right panel non-display areas are flat. Can be arranged so as to overlap each other.

  In the moving body display module, the panel support member is a panel cover attached to the surface side of the plurality of electroluminescence panels, and each surface side of the plurality of electroluminescence panels is fixed to the panel cover. The gist is to have a plurality of panel mounting surfaces with different heights. According to this, by fixing each surface side of the plurality of electroluminescence panels to a plurality of panel mounting surfaces having different panel cover heights, the non-display areas of adjacent panels of the plurality of electroluminescence panels can be planarized. An overlapping arrangement is possible. For example, when there are three electroluminescent panels, the middle panel non-display area and the left and right panel non-display areas can be obtained by lowering the height of the middle panel mounting surface of the panel cover than the left and right panel mounting surfaces. An arrangement that overlaps in a planar manner is possible. Here, the “surface of the electroluminescence panel” refers to a surface on the side from which the light from the electroluminescence element is emitted.

  In the moving body display module, the plurality of electroluminescence panels are fixed to the light emitting element substrate on which a plurality of pixels each having an electroluminescence element are formed and the plurality of pixels are sealed. Each of the plurality of electroluminescence panels using gaps formed around the sealing substrate by a step between the light emitting element substrate and the sealing substrate smaller than the light emitting element substrate. The gist is that the non-display areas of adjacent panels are arranged so as to overlap each other. According to this, the thickness of the whole several electroluminescent panel can be made thin.

  In the moving body display module, the plurality of electroluminescence panels have different aspect ratios of a panel outer shape and an aspect ratio of a display area in which the plurality of pixels are two-dimensionally arranged, and around the display area. A panel having a wide non-display area and a narrow non-display area, and electrodes that are electrically connected to an external circuit are provided in the wide non-display areas of the plurality of electroluminescence panels, respectively. It is a summary. According to this, an electrode can be provided in the wide non-display area of each of the plurality of electroluminescence panels using the wide space.

The gist of the display module of the moving body is that the plurality of electroluminescence panels are arranged so that the non-display areas with narrow widths of adjacent panels overlap each other. According to this, since the electrodes of each of the plurality of electroluminescence panels are located on the lower side or the upper side of the panel, work for connecting wirings and connection cables for inputting various signals from an external circuit to the electrodes of each electroluminescence panel Becomes easier.

  In this mobile display module, the gist is that the panel support member has a spare space for attaching one or a plurality of electroluminescence panels in addition to the plurality of electroluminescence panels. According to this, when mounting on an instrument panel of a vehicle such as an automobile, design change of the instrument panel, addition of a display function, and the like can be arbitrarily selected and determined on the user side.

Hereinafter, embodiments embodying the present invention will be described with reference to the drawings.
(First embodiment)
The display module of the moving body according to the first embodiment will be described with reference to FIGS. The display module of the moving body is mounted on an instrument panel of a vehicle such as an automobile as the moving body.

  As shown in FIG. 1, the moving body display module 1 includes a plurality of (three in this example) organic EL panels 2, 3, and 4 as an electroluminescence panel, and a base plate 5 as a panel support member. Prepare. Three organic EL panels 2, 3, and 4 that display different images are mounted side by side in the longitudinal direction on one horizontally long base plate 5. In this example, three panel assemblies A, B, and C each having organic EL panels 2, 3, and 4 are mounted side by side on one base plate 5.

  Further, as shown in FIG. 2, the mobile display module 1 includes three image control boards 6, 7, 8 individually provided on each of the three organic EL panels 2, 3, 4, and an organic EL panel. 2 and the image control board 6, the organic EL panel 3 and the image control board 7, and the two connection cables 9 and 10 for electrically connecting the organic EL panel 4 and the image control board 8, respectively. Each of the connection cables 9 and 10 is a flexible wiring board, and is composed of, for example, a flexible wiring board (FPC). Connectors 9a and 9b are formed at both ends of the connection cable 9, and connectors 10a and 10b are formed at both ends of the connection cable 10, respectively. In FIG. 2, illustration of the two connection cables 9 and 10 for electrically connecting the organic EL panel 3 and the image control board 7 and the organic EL panel 4 and the image control board 8 are omitted.

  In this example, each organic EL panel 2, 3 and 4 is a panel having the same size, and includes a light emitting element substrate 11 and a sealing substrate 12 as shown in FIGS. The light emitting element substrate 11 includes a plurality of scanning lines (not shown) extending in the row direction (X direction in FIG. 3) and a plurality of data lines (not shown) extending in the column direction (Y direction in FIG. 3), A plurality of pixels (not shown) are two-dimensionally arranged corresponding to the intersections of the scanning lines and the data lines.

  For example, the plurality of pixels are arranged in the order of a red pixel, a green pixel, and a blue pixel in each row. Each pixel circuit of a red pixel, a green pixel, and a blue pixel has an organic EL element (not shown) as an electroluminescence element that emits red, green, and blue light from the light emitting layer. The organic EL element of each pixel has a structure in which an anode, an organic light emitting layer, and a cathode are sequentially laminated. The sealing substrate 12 is bonded to the light emitting element substrate 11 so as to seal the organic EL element and the cathode of each pixel. A desiccant (not shown) is sealed between the sealing substrate 12 and the light emitting element substrate 11. For example, a glass substrate is used as the sealing substrate 12. The light emitting element substrate 11 is a transparent glass substrate, and the anode is a transparent electrode.

A scanning line driving circuit (not shown) for driving a plurality of scanning lines is provided on the light emitting element substrate 11. This scanning line driving circuit selects a plurality of scanning lines one by one by line sequential scanning at a timing according to a synchronization signal and a clock signal supplied from the outside.

  Further, a data line driving circuit (not shown) for driving a plurality of data lines is provided on the light emitting element substrate 11. The data line driving circuit supplies currents corresponding to the gradation values of the image data of the pixels to the pixel circuits connected to the selected one scanning line all at once through the plurality of data lines. It is like that. Thereafter, when a driving current corresponding to the gradation value of the image data of each pixel flows through the organic EL element of each pixel, the organic EL element of each pixel emits light with a luminance corresponding to the gradation value. The data line driving circuit is a driver provided on a flexible wiring board on which a plurality of wirings electrically connected to a plurality of wirings (data lines, scanning lines, power supply lines, etc.) on the light emitting element substrate 11 are formed. You may comprise with IC.

  As described above, each of the organic EL panels 2 to 4 includes, for example, red, green, and blue organic EL elements provided in a plurality of pixels arranged two-dimensionally, for example, 8-bit digital gradation data. It is driven based on the image data of the pixels to emit light.

  And the circularly-polarizing plate 13 is affixed on the light-projection surface (surface) side of each organic EL panel 2, 3, and 4 in order to suppress that external incident light reflects on the surface. The circularly polarizing plate 13 is disposed so as to cover the entire display area 14 (see FIGS. 4 and 6) of each organic EL panel 2, 3, and 4. The periphery of the display area 14 of each organic EL panel 2, 3, 4 is a non-display area 15 (see FIG. 6).

  Since the panel assemblies A, B, and C have the same configuration, FIGS. 3 and 4 show the detailed configuration of only the panel assembly A, and the detailed configurations of the panel assemblies B and C are omitted.

  As shown in FIGS. 3 and 4, the panel assembly A includes, in addition to the organic EL panel 2, a panel base plate 16 fixed to the surface of the sealing substrate 12, and an attachment fixed to substantially the center of the panel base plate 16. And a base 17. The panel assemblies B and C are respectively provided with mounting bases 18 and 19 similar to the panel assembly A (see FIG. 2).

  The base plate 5 is attached to the instrument panel 21 of the vehicle 20 shown in FIG. The base plate 5 is a plate having a flat panel mounting surface on which the three organic EL panels 2 to 4 are fixed. The three organic EL panels 2 to 4 are mounted on the mounting bases 17 of the panel assemblies A, B, and C, respectively. 18 and 19 are fixed to the panel mounting surface of the base plate by two set screws 30 and 30 (see FIG. 2).

  As described above, since the base plate 5 used in this example is a plate having a flat panel mounting surface, only the thicknesses of the mounting bases 17, 18, and 19 of the panel assemblies A, B, and C are made different. The height positions of the EL panels 2, 3 and 4 from the panel mounting surface are changed. Here, the thickness of the mounting base 17 of the middle (center) organic EL panel 2 is made larger than the thickness of the mounting bases 18 and 19 of the left and right organic EL panels 3 and 4, so that each organic EL panel 2, 2. The height positions from the panel mounting surfaces 3 and 4 are changed so that the non-display areas 15 of adjacent panels overlap in a plane.

  Further, as shown in FIGS. 3 and 4, the panel assembly A includes two left and right panel control boards 22 and 23, and a total of four flexible wiring boards 24, two on each of the left and right sides of the organic EL panel 2. 25, 26 and 27.

  On the panel control boards 22 and 23 of the panel assemblies A, B and C, an image is displayed on each of the organic EL panels 2 to 4 using a plurality of display image data created based on the vehicle information data and the image data. A panel control circuit (not shown) is provided. Here, the “vehicle information data” is data such as vehicle speed and engine speed representing vehicle driving information when the moving body is a vehicle such as an automobile. The “image data” includes image data from other systems such as a car navigation device, a television, and a video device mounted on the vehicle, and image data from a storage device such as an HDD or a DVD.

  In each panel assembly A, B, C, the panel control circuit of the panel control board 22 is electrically connected to a plurality of wirings on each of the organic EL panels 2, 3, 4 via the two flexible wiring boards 24, 25, respectively. Connected to. The panel control circuit of the panel control board 23 is electrically connected to a plurality of wirings on the organic EL panels 2, 3 and 4 via the two flexible wiring boards 26 and 27, respectively. In order to obtain such electrical connection, in each panel assembly A, B, C, the input end side of the plurality of wirings on the flexible wiring boards 24, 25 is the four connectors provided on the panel control board 22. 28. The output end sides of the plurality of wirings on the flexible wiring boards 24 and 25 are electrically connected to the plurality of wirings on the light emitting element substrate 11 through an anisotropic conductive film (ACF) (FIG. 4). Similarly, in each panel assembly A, B, C, input end sides of a plurality of wirings on the flexible wiring boards 26, 27 are connected to four connectors 29 provided on the panel control board 23. The output end sides of the plurality of wirings on the flexible wiring boards 26 and 27 are electrically connected to the plurality of wirings on the light emitting element substrate 11 through an anisotropic conductive film (see FIG. 4). .

  Further, on each of the image control boards 6, 7, and 8 shown in FIG. 2, a plurality of display image data are created based on the CPU, power supply circuit, input vehicle information data and image data not shown. An image processing circuit for outputting to the panel control circuits of the panel assemblies A, B, and C is provided. In each panel assembly A, B, C, each panel control circuit of the panel control boards 22, 23 has a panel assembly output from a power supply circuit, an image processing circuit, etc. provided on each image control board 6, 7, 8 Control signals, power, and various types of image data are supplied via connection cables 9 and 10 shown in FIG. Based on these input signals, the panel control circuits of the panel assemblies A, B, and C send driver control signals to the scanning line driving circuits and data line driving circuits of the organic EL panels 2, 3, and 4, and the data line driving circuits. The drive data is supplied to each pixel circuit.

  In order to obtain such electrical connection, in the panel assembly A, one connector 9a, 10a of the connection cable 9, 10 is connected to a connector 31, 32 (see FIG. 4) provided on the panel control board 22, 23, respectively. The other connectors 9b and 10b are connected to connectors 33 and 34 provided on the image control board 6, respectively. In the panel assembly B, one connector 9a, 10a of the connection cable 9, 10 is connected to the connector 31, 32 of the panel control board 22, 23, and the other connector 9b, 10b is provided on the image control board 7, respectively. Connected to the connectors 35 and 36. In the panel assembly C, one connector 9a, 10a of the connection cable 9, 10 is connected to the connector 31, 32 of the panel control board 22, 23, and the other connector 9b, 10b is provided on the image control board 8, respectively. Connected to the connectors 37 and 38.

FIG. 5 shows the interior of the vehicle 20 in which the display module 1 of the moving body is mounted on the instrument panel 21. The display module 1 of the moving body displays the scale, numbers and pointers of a speedometer that displays the vehicle speed on the organic EL panel 2 in the middle, and the tachometer scale, numerals, and numbers on the right side of the organic EL panel 3 that displays the engine speed. A pointer is displayed, and an image such as map information of the car navigation device is displayed on the left organic EL panel 4 (see FIG. 7). In addition, on the upper left and right of the speedometer displayed on the organic EL panel 2 in the middle, there are provided direction indicating portions 41 and 42 in which two light emitting diodes blink by operating the direction indicator 40 in the vertical direction. In the direction instruction units 41 and 42, two light emitting diodes blink simultaneously by operating a hazard switch (not shown).

The features of the mobile display module 1 having such a configuration are listed below.
As shown in FIG. 6, the three organic EL panels 2, 3, and 4 that display different images are attached to one horizontally long base plate 5 in the longitudinal direction.

  As shown in FIG. 6, the adjacent panel among the three organic EL panels 2 to 4 has a flat non-display area 15 around the display area 14 in which a plurality of pixels each having an organic EL element are two-dimensionally arranged. Are arranged so as to overlap each other.

  In the panel arrangement example shown in FIG. 6, the right side of the left and right non-display area 15 of the organic EL panel 2 in the middle overlaps with the left non-display area 15 of the organic EL panel 3 on the right side in a plane, The non-display area 15 on the left side of the organic EL panel 2 in the middle overlaps the non-display area 15 on the right side of the organic EL panel 4 on the left side in a plane.

  As shown in FIG. 6, the middle organic EL panel 2 among the three organic EL panels 2 to 4 is arranged to be shifted upward from the left and right organic EL panels 3 and 4. The three organic EL panels 2 to 4 used in this example are panels of the same size, and are vertically long panels having a vertical to horizontal ratio of, for example, 6: 5 as shown in FIG. In the panel arrangement example shown in FIG. 6, among the three organic EL panels 2 to 4, the middle organic EL panel 2 is arranged vertically and the left and right organic EL panels 3 and 4 are arranged horizontally.

  In order to fix the three organic EL panels 2 to 4 on the base plate 5 in the arrangement as shown in FIG. 6, as shown in FIG. 2, the middle organic EL panel arranged vertically in the center of the base plate 5. Horizontally long cable insertion holes 50 and 51 for passing connection cables 9 and 10 connected to 2 are provided. Further, on the left and right sides of the base plate 5, vertical cable insertion holes 52 and 53 and cable insertion holes 54 for passing connection cables 9 and 10 respectively connected to the left and right organic EL panels 3 and 4 arranged sideways. 55 is provided.

  The base plate 5 is a plate having a flat panel mounting surface on which the three organic EL panels 2 to 4 are fixed. The three organic EL panels 2 to 4 are mounted on the mounting bases 17 of the panel assemblies A, B, and C, respectively. 18 and 19 are fixed to the panel mounting surface of the base plate 5 with two set screws 30 and 30 (see FIG. 2), respectively.

Next, the assembly procedure of the display module 1 of the moving body according to the first embodiment having the above configuration will be described with reference to FIG.
First, when the organic EL panel 2 is attached to the base plate 5, the two set screws 30 are passed through the two through holes 61 provided in the center of the base plate 5, and the organic EL panel 2 is provided on the attachment base 17 of the organic EL panel 2. The two screw holes 17a (see FIG. 4) are screwed and fastened. At this time, the connection cables 9 and 10 in which one connector 9 a and 10 a are connected to the organic EL panel 2 are respectively passed through the horizontally long cable insertion holes 50 and 51 of the base plate 5.

Next, when the right organic EL panel 3 is attached to the base plate 5, two set screws 30 are passed through the two through holes 62 provided on the right side of the base plate 5, respectively, to the attachment base 18 of the organic EL panel 3. The two screw holes (screw holes similar to the screw holes 17a) are screwed and fastened. Also at this time, the connection cables 9 and 10 in which one connector 9a and 10a are connected to the organic EL panel 3 are passed through the vertically long cable insertion holes 52 and 53, respectively.

  Next, when attaching the left organic EL panel 4 to the base plate 5, the two set screws 30 are passed through the two through holes 63 provided on the left side of the base plate 5, respectively, to the attachment base 19 of the organic EL panel 4. The two screw holes (screw holes similar to the screw holes 17a) are screwed and fastened. Also at this time, the connection cables 9 and 10 in which one of the connectors 9a and 10a is connected to the organic EL panel 4 are passed through the vertically long cable insertion holes 54 and 55 of the base plate 5, respectively.

  Next, the other connectors 9 b and 10 b of the connection cables 9 and 10 in which one connector 9 a and 10 a are connected to the organic EL panel 2 are connected to the connectors 33 and 34 of the image control board 6. Thereafter, when the image control board 6 is attached to the base plate 5, four set screws 65 are passed through the four through holes 164 provided at the four corners of the image control board 6, respectively, and provided at the center of the base plate 5. The four screw holes 66 are screwed and fastened.

  Next, the other connectors 9 b and 10 b of the connection cables 9 and 10 in which one connector 9 a and 10 a are connected to the organic EL panel 3 are connected to the connectors 35 and 36 of the image control board 7. Thereafter, when the image control board 7 is attached to the base plate 5, four set screws 68 are passed through the four through holes 67 provided at the four corners of the image control board 7, respectively, and provided on the right side of the base plate 5. The four screw holes 69 are screwed and fastened.

  Next, the other connectors 9 b and 10 b of the connection cables 9 and 10 in which one connector 9 a and 10 a are connected to the organic EL panel 4 are connected to the connectors 37 and 38 of the image control board 8. Thereafter, when the image control board 8 is attached to the base plate 5, four set screws 71 are passed through the four through holes 70 provided at the four corners of the image control board 8, respectively, and provided on the left side of the base plate 5. The four screw holes 72 are screwed and fastened.

  When fixing the image control boards 6, 7, 8 with the set screws 65, 71, 68, a spacer (not shown) is used so that the base plate 5 and the electronic components on the image control boards 6, 7, 8 do not interfere with each other. Is arranged.

  The base plate 5 of the display module 1 of the moving body assembled in such a procedure is attached to the instrument panel 21 of the vehicle 20 shown in FIG. FIGS. 5 and 7 show a state in which the resin panel cover 80 indicated by a two-dot chain line in FIG. 7 is attached to the surface of the moving display module 1 attached to the instrument panel 21 in this manner. The panel cover 80 includes a speedometer circular opening 81 displayed in the display area 14 of the middle organic EL panel 2 and a tachometer circular opening displayed in the display area 14 of the right organic EL panel 3. A portion 82 and a rectangular opening 83 for an image displayed on the left organic EL panel 4 are provided.

  In the mobile display module 1 thus mounted on the instrument panel 21 of the vehicle 20, for example, as shown in FIG. 7, a speedometer scale 91 that displays the vehicle speed in an analog manner using the organic EL panel 2 in the middle, A number 92 and a pointer 93 are displayed. Further, a tachometer scale 94, numeral 95 and pointer 96 for analog display of the engine speed are displayed on the right organic EL panel 3, and an image 97 such as map information of the car navigation device is displayed on the left organic EL panel 4. . The organic EL panel 4 can also display TV images and DVD device images.

According to 1st Embodiment comprised as mentioned above, there exist the following effects.
○ Images of different display modes can be displayed simultaneously by the three organic EL panels 2, 3 and 4. That is, the speedometer scale 91, numeral 92, and pointer 93 are displayed on the organic EL panel 2 in the middle, the tachometer scale 94, numeral 95, and pointer 96 are displayed on the right organic EL panel 3, and the organic EL panel on the left side is displayed. 4, an image 97 such as map information of the car navigation device can be displayed.

  ○ By displaying different images with the three organic EL panels 2, 3 and 4 mounted side by side on the base plate 5, the ratio of the unused area to the display area 14 is reduced. Wasteful power consumption is reduced and the data transfer rate is increased. Moreover, the ratio of the number of effective use pixels becomes large.

○ The yield of each organic EL panel 2, 3, 4 is improved.
O Since the organic EL panels 2, 3, and 4 are used, display with high contrast and high visibility is possible.

Therefore, a mobile display module capable of displaying different images while reducing power consumption, improving data transfer speed, and improving yield can be realized.
○ The adjacent panel among the three organic EL panels 2 to 4 is arranged so that the non-display area 15 around the display area 14 overlaps in a plane, so the display area (active area) of the adjacent panel You can get closer. Thereby, the visibility when a driver looks at the three organic EL panels 2 to 4 is improved. In particular, when mounted on the instrument panel 21 of a vehicle 20 such as an automobile as a moving body and the speedometer and the tachometer are respectively displayed in the display area of the adjacent panels, the display area of the speedometer and the display area of the tachometer are made visible. Considering this, it can be arranged at an optimum interval.

  ○ Since the display areas of adjacent panels can be brought close to each other, the overall size of the display module 1 of the moving body, particularly the size in the direction in which the three organic EL panels 2 to 4 are arranged, becomes small. Installation in a narrow installation space such as an instrument panel becomes possible.

  ○ Of the three organic EL panels 2 to 4, the middle organic EL panel 2 is arranged to be shifted upward from the left and right organic EL panels 3 and 4. When the speedometer is displayed on a vehicle such as an automobile, the visibility of the speedometer is improved.

  ○ Since the base plate 5 is a plate that is attached to the instrument panel 21 of the vehicle 20, the base plate 5 to which the three organic EL panels 2 to 4 are fixed is attached to the instrument panel 21 of the vehicle 20. The display module 1 can be easily mounted.

The base plate 5 is a plate having a flat panel mounting surface on which the three organic EL panels 2 to 4 are fixed. The three organic EL panels 2 to 4 are mounted bases 17 and 18 for the panel assemblies A, B, and C, respectively. , 19 are fixed to the panel mounting surface of the base plate 5 respectively. Thereby, the height position from the panel attachment surface of each organic EL panel can be changed by changing only the thickness of the attachment bases 17-19 of each organic EL panel 2-4.
(Second Embodiment)
A mobile display module according to the second embodiment will be described with reference to FIG. FIG. 8 shows a panel arrangement of the display module 1 of the moving body.

  In order to realize such an arrangement, the horizontally long cable insertion holes 50 and 51 in the center of the base plate 5 shown in FIG. 2 are changed to vertically long holes, and the left and right vertically long cable insertion holes 52 and 53 and the cable insertion holes 54 and It is only necessary to change 55 to a horizontally long hole. Other configurations are the same as those in the first embodiment.

According to 2nd Embodiment comprised as mentioned above, in addition to the effect which the said 1st Embodiment show | plays, there exist the following effects.
Since the middle organic EL panel 2 is disposed horizontally and the left and right organic EL panels 3 and 4 are disposed vertically, the mounting dimension of the display module 1 in the height direction (vertical direction) is reduced. Thereby, when the display module 1 is mounted on the instrument panel 21 of the vehicle 20, attachment to the instrument panel 21 with restrictions in the height direction is facilitated.
(Third embodiment)
A mobile display module according to the third embodiment will be described with reference to FIG.

  In the first embodiment, as shown in FIG. 2, the image control boards 6, 7, and 8 are individually provided on the three organic EL panels 2, 3, and 4. On the other hand, in the mobile display module 1 according to the second embodiment, one image control board 100 shown in FIG. 9 is used for the three organic EL panels 2, 3, and 4. The image control board 100 includes connectors 133 and 134 corresponding to the connectors 33 and 34 of the image control board 6 shown in FIG. 2, connectors 135 and 136 corresponding to the connectors 35 and 36 of the image control board 7, and image control. Connectors 137 and 138 corresponding to the connectors 37 and 38 of the substrate 8 are provided. Other configurations are the same as those in the first embodiment.

According to 3rd Embodiment comprised as mentioned above, in addition to the effect which the said 1st Embodiment show | plays, there exist the following effects.
Since one image control board 100 may be prepared for the three organic EL panels 2, 3 and 4, the number of parts is reduced and the manufacturing cost is reduced.

○ The configuration using one image control board 100 for the three organic EL panels 2, 3, 4 reduces the space of the image control board 100 on the back side of the base plate 5, so an instrument panel with limited space Attachment of the display module to 21 is further facilitated.
(Fourth embodiment)
A moving body display module 1 according to a fourth embodiment will be described with reference to FIGS. The display module 1 is different from the first embodiment in the following points.

  (1) The organic EL panels 2a, 3a, 4a of the three panel assemblies A, B, C are placed at the same position on the base plate 110 corresponding to the base plate 5 without shifting some of the panels upward. And it is arrange | positioned in the same direction (refer FIG. 10, FIG. 11).

  (2) Each of the organic EL panels 2a, 3a, and 4a of the three panel assemblies A, B, and C includes one unit instead of the four flexible wiring boards 24, 25, 26, and 27 shown in FIGS. Flexible wiring boards 111 are provided respectively. In this case, one of the left and right two panel control boards 22 and 23 provided in each of the panel assemblies A to C of the first embodiment and one of the connectors 31 and 32 are not provided.

(3) The base plate 110 corresponding to the base plate 5 is a plate having three panel mounting surfaces 110A, 110B, and 110C having different heights to which the back surfaces of the three organic EL panels 2a, 3a, and 4a are fixed. . Middle panel mounting surface 11
The height (thickness) of 0A is higher than the left and right panel mounting surfaces 110B and 110C.

  (4) One end of one connection cable 112 is connected to each of the organic EL panels 2a, 3a, 4a of the three panel assemblies A, B, C instead of the two connection cables 9, 10 (FIG. 11, see FIG. Accordingly, rectangular cable insertion holes 113, 114, and 115 for passing the connection cables 112 are provided on the panel attachment surfaces 110 </ b> A, 110 </ b> B, and 110 </ b> C of the base plate 110, respectively.

According to 4th Embodiment comprised as mentioned above, in addition to the effect which the said 1st Embodiment show | plays, there exist the following effects.
O Due to the difference (1), different display contents can be displayed at the same height position by the three organic EL panels 2, 3 and 4.

  O Due to the difference (2), since only one flexible wiring board 111 is connected to each of the organic EL panels 2a, 3a, 4a, the number of parts and the number of connecting steps of the parts are reduced, so that the manufacturing cost can be reduced. Moreover, since the structure of each panel assembly A, B, C is simplified, the manufacturing cost can be reduced also by this.

  The difference (3) enables the three organic EL panels 2a, 3a, 4a to be arranged so that the non-display areas 15 of adjacent panels overlap in a plane (see FIG. 10). Here, the height of the middle panel mounting surface 110A of the base plate 110 is made higher than the left and right panel mounting surfaces 110B and 110C, so that the non-display area 15 of the middle organic EL panel 2 and the left and right organic EL panels 3, The four non-display areas 15 can be arranged so as to overlap each other in a planar manner.

O Due to the difference (4), only one connection cable 112 is required to connect to each organic EL panel 2a, 3a, 4a, so each organic EL panel 2a, 3a, 4a and each image control board 6, 7, 8 (See FIG. 2) is easily connected with the connection cable 112.
(Fifth embodiment)
A mobile display module 1 according to a fifth embodiment will be described with reference to FIGS. 13 and 14. The display module 1 is different from the first embodiment in the following points.

  The same organic EL panels 2a, 3a, 4a as in the fourth embodiment are used. Further, as a panel support member, a panel cover 120 (see FIG. 13) attached to the surface side of the three organic EL panels 2a, 3a, 4a is used instead of the base plate 5 (see FIG. 2). The panel cover 120 has three panel mounting surfaces 120A, 120B, and 120C having different heights to which the respective surface sides of the three organic EL panels 2a, 3a, and 4a are fixed. The middle panel mounting surface 120A is lower (thickness is thinner) than the left and right panel mounting surfaces 120B and 120C. Each panel mounting surface 120A, 120B, 120C of the panel cover 120 is provided with a circular opening 121 for a speedometer, a circular opening 122 for a tachometer, and a rectangular opening 123 for an image. .

According to 5th Embodiment comprised as mentioned above, in addition to the effect which the said 1st Embodiment show | plays, there exist the following effects.
○ The organic EL panels 2a, 3a, 4a are adjacent to each other by fixing the surface sides of the three organic EL panels 2a, 3a, 4a to the panel mounting surfaces 120A, 120B, 120C having different heights of the panel cover 120, respectively. Arrangement can be made such that the non-display areas of the panels overlap in a planar manner. Here, the height of the middle panel mounting surface 120A is made lower than the left and right panel mounting surfaces 120B and 120C, so that the non-display area of the middle organic EL panel 2a and the left and right organic EL panels 3a and 4a are not displayed. Arrangement in which areas overlap in a planar manner is possible.
(Sixth embodiment)
A mobile display module 1 according to a sixth embodiment will be described with reference to FIGS. 15A, 15B, 16 and 17. FIG. The display module 1 is different from the first embodiment in the following points.

  (1) Instead of the above three organic EL panels 2, 3 and 4, the panel outer shape has a vertical to horizontal ratio of, for example, 5: 6, and the display area 14 has a vertical to horizontal ratio of, for example, 1: 1. Two organic EL panels 2b, 3b and 4b (see FIG. 15A) are used. The organic EL panels 2b, 3b, 4b have the same size. As described above, each of the organic EL panels 2b, 3b, and 4b has a different aspect ratio of the outer shape of the panel and the aspect ratio of the display area. Therefore, each of the organic EL panels 2b, 3b, and 4b has a wide non-display area 15a. And a narrow non-display area 15b. In one of the wide left and right non-display areas 15b of each organic EL panel 2b, 3b, 4b, as shown in FIG. 15B and FIG. Is provided. The electrode 130 of each organic EL panel 2b, 3b, 4b is electrically connected to each circuit such as an image processing circuit provided on an external circuit, for example, the image control boards 6 to 8 (see FIG. 2) described above. Various signals are input from an external circuit.

  (2) In the three organic EL panels 2b, 3b, and 4b, the non-display areas 15b having narrow widths of adjacent panels overlap the base plate similar to the base plate 110 of the fourth embodiment shown in FIGS. Thus, they are arranged at the same position and in the same direction (see FIG. 16). Thereby, the electrode 130 of each organic EL panel 2b, 3b, 4b will be located below as shown in FIG.

  (3) The three organic EL panels 2b, 3b, and 4b each include a light emitting element substrate 11 and a sealing substrate 12 as in the case of the organic EL panels 2, 3, and 4 of the first embodiment (FIG. 15). (See (a)). And in each organic EL panel 2b, 3b, 4b, the level | step difference 132 is made between the light emitting element substrate 11 and the sealing substrate 12 smaller than this. That is, in each organic EL panel 2b, 3b, 4b, a gap is formed below the non-display areas 15a, 15b around the sealing substrate 12 due to the step 132. Using the gap formed by the step 132, the three organic EL panels 2b, 3b, 4b are arranged so that the non-display areas 15b having narrow widths of adjacent panels overlap each other (see FIG. 17). That is, the light emitting element substrate 11 of the right organic EL panel 3b enters one of the left and right gaps formed by the left and right step 132 of the middle organic EL panel 2b, and the non-display areas 15b of the organic EL panels 3a and 3b overlap each other. ing. Further, the light emitting element substrate 11 of the left organic EL panel 4b enters the other of the left and right gaps formed by the left and right steps 132 of the organic EL panel 2b, and the non-display areas 15b of the organic EL panels 2b and 4b overlap each other. .

According to 6th Embodiment comprised as mentioned above, in addition to the effect which the said 1st Embodiment show | plays, there exist the following effects.
O Due to the difference (1), the electrode 130 can be provided on one of the wide left and right non-display areas 15b of each organic EL panel 2b, 3b, 4b using the wide space.

  ○ Due to the difference (2), the electrodes 130 of the organic EL panels 2b, 3b, and 4b are positioned on the lower side. Therefore, the electrodes 130 of the organic EL panels 2b, 3b, and 4b are connected to an external circuit, for example, as described above. The operation | work which connects the wiring and connection cable which input the various signals from each circuit, such as an image processing circuit provided in the image control boards 6-8, becomes easy.

  O Due to the difference (3), in each organic EL panel 2b, 3b, 4b, a non-display area around the sealing substrate 12 due to a step 132 between the light emitting element substrate 11 and the smaller sealing substrate 12 is provided. There is a gap below 15a and 15b. Using this gap, the three organic EL panels 2b, 3b, and 4b are arranged so that the non-display areas 15b with narrow widths of adjacent panels overlap each other (see FIG. 17). In this example, the light-emitting element substrate 11 of the right organic EL panel 3b enters one of the left and right gaps formed by the left and right steps 132 of the middle organic EL panel 2b, and the non-display areas 15b of both the organic EL panels 3a and 3b Are overlapping. Further, the light emitting element substrate 11 of the left organic EL panel 4b enters the other of the left and right gaps formed by the left and right steps 132 of the organic EL panel 2b, and the non-display areas 15b of the organic EL panels 2b and 4b overlap each other. . Thereby, the whole thickness of the three organic EL panels 2b, 3b, 4b can be reduced.

In addition, this invention can also be changed and embodied as follows.
In each of the above embodiments, the number of organic EL panels in the mobile display module 1 is “3”, but the number is an example, and the present invention uses a plurality of organic EL panels other than “3”. It can be applied to a display module of a moving body.

  In each of the above embodiments, three organic EL panels having the same size are used. However, the present invention can also be applied to a mobile display module using a plurality of organic EL panels having different sizes. For example, when mounted on a vehicle such as an automobile and the speedometer is displayed on the middle panel of the three organic EL panels, the middle panel is enlarged and raised in order to improve the visibility of the speedometer. Preferably, the left and right panels are made smaller and lower than the middle panel.

  In each of the above embodiments, adjacent panels among the three organic EL panels are arranged so that the non-display area 15 around the display area 14 overlaps in a planar manner. The present invention can also be applied to a configuration in which none of the panels overlap.

  In each of the above-described embodiments, a base plate or a panel cover as a panel support member for attaching a plurality of organic EL panels is not provided with a spare space for attaching one or more organic EL panels added later. The present invention can also be applied to a configuration in which such a spare space is provided in advance in the base plate and the panel cover. By adopting such a configuration, when mounting on an instrument panel of a vehicle such as an automobile, the user can arbitrarily select and determine the design change of the instrument panel, the addition of a display function, and the like.

  In each of the above embodiments, an organic EL panel using an organic EL element is used as the electroluminescence element. However, the present invention can also be applied to a configuration using an inorganic EL panel using an inorganic EL element as the electroluminescence element. It is.

  In each of the above embodiments, an image such as map information of a car navigation device is displayed on one of the three organic EL panels. However, an image of a vehicle back monitor is displayed on the organic EL panel. May be. In short, it is possible to arbitrarily select a display mode to be displayed on each of the plurality of organic EL panels.

The perspective view which shows the display module of the moving body which concerns on 1st Embodiment. The disassembled perspective view of the display module. The perspective view which shows one of the some organic electroluminescent panel used with the display module. The perspective view which shows the back surface side of the organic EL panel. The perspective view which shows the vehicle interior part of the vehicle by which the display module is mounted. The top view which shows the panel arrangement | positioning of the display module. The top view which shows the display state of the display module. The top view which shows the panel arrangement | positioning of the display module of the moving body which concerns on 2nd Embodiment. The perspective view which shows the image control board of the display module of the moving body which concerns on 3rd Embodiment. The top view which shows the panel arrangement | positioning of 4th Embodiment. The perspective view which shows the display module of the moving body which concerns on 4th Embodiment. The disassembled perspective view of the display module. The perspective view which shows the panel cover used in 5th Embodiment The perspective view which shows the display module of the moving body which concerns on 5th Embodiment. (A) The top view which shows the organic electroluminescent panel used by 6th Embodiment, (b) The side view of the organic electroluminescent panel. The top view which shows the panel arrangement | positioning of 6th Embodiment. The side view which shows the panel arrangement | positioning of 6th Embodiment. Explanatory drawing which shows the mode of the actual display by the conventional vehicle information display apparatus. Explanatory drawing which shows the display part currently used for the actual display in the display apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Display module 5,110 ... Base plate, 11 ... Light emitting element substrate, 12 ... Sealing substrate, 14 ... Display area, 15, 15a, 15b ... Non-display area, 17, 18, 19 ... Mounting base, 21 ... Instrument Panel, 97, image, 110A, 110B, 110C, 120A, 120B, 120C ... panel mounting surface, 130 ... electrode, 132 ... step.

Claims (12)

A display module for a moving body, wherein a plurality of electroluminescence panels for displaying different images are mounted side by side on a panel support member. In the display module of the mobile object according to claim 1,
The adjacent panel among the plurality of electroluminescence panels is arranged such that a non-display area around a display area in which a plurality of pixels each having an electroluminescence element are two-dimensionally overlapped in a plane. A display module for moving objects. In the display module of the mobile object according to claim 2,
The display module of a moving body, wherein the plurality of electroluminescence panels are three or more, and the central electroluminescence panel is arranged to be shifted upward from the left and right electroluminescence panels. In the display module of the mobile object according to claim 3,
Each of the plurality of electroluminescence panels has a vertically long shape, and is arranged such that a central electroluminescence panel is horizontally oriented and left and right electroluminescence panels are vertically oriented. In the display module of the mobile object according to any one of claims 1 to 4,
The display module for a moving body, wherein the panel support member is a base plate attached to an instrument panel of the moving body. In the display module of the mobile object according to claim 5,
The base plate is a plate having a flat panel mounting surface to which the plurality of electroluminescence panels are fixed, and the plurality of electroluminescence panels are arranged via the mounting base fixed to the back side of each electroluminescence panel. A moving body display module fixed to a panel mounting surface. In the display module of the mobile object according to claim 5,
The mobile display module according to claim 1, wherein the base plate is a plate having a plurality of panel mounting surfaces with different heights to which the back surfaces of the plurality of electroluminescence panels are fixed. In the display module of the mobile object according to any one of claims 1 to 4,
The panel support member is a panel cover attached to the surface side of the plurality of electroluminescence panels, and the panel cover is attached to a plurality of panels having different heights to which the respective surface sides of the plurality of electroluminescence panels are respectively fixed. A display module for a moving body having a surface. In the display module of the mobile object according to any one of claims 1 to 8,
Each of the plurality of electroluminescence panels includes a light emitting element substrate on which a plurality of pixels each having an electroluminescence element is formed, and a sealing substrate fixed to the light emitting element substrate so as to seal the plurality of pixels. The plurality of electroluminescence panels are not displayed on adjacent panels by utilizing a gap formed around the sealing substrate by a step between the light emitting element substrate and the sealing substrate smaller than the light emitting element substrate. A display module for a moving object, characterized in that the areas are arranged so as to overlap each other. In the display module of the mobile object according to claim 9,
The plurality of electroluminescence panels are different from each other in aspect ratio of the outer shape of the panel and aspect ratio of the display area in which the plurality of pixels are two-dimensionally arranged, and have a wide non-display area and a width around the display area. And a non-display area having a narrow width, and the wide non-display area of the plurality of electroluminescence panels is provided with electrodes electrically connected to an external circuit, respectively. Body display module. In the display module of the mobile object according to claim 10,
The plurality of electroluminescence panels are arranged so that the narrow non-display areas of adjacent panels overlap each other. In the display module of the mobile object according to any one of claims 1 to 11,
The display module for a moving body, wherein the panel support member has a spare space for attaching one or a plurality of electroluminescence panels in addition to the plurality of electroluminescence panels.

Images