JP4958494B2 - Display device - Google Patents

Description

  The present invention relates to a display device such as a liquid crystal display, an organic EL display, or a plasma display.

  For example, a combination meter that performs various displays in a vehicle includes an analog instrument that digitally displays information that has been displayed so far using a liquid crystal display or the like (for example, Patent Documents 1 and 2). The display contents are merely switched as appropriate, and the display is flat, so that there is a lack of clarity.

Therefore, in the past, the present applicant has proposed a display device for a vehicle that is visually recognized from the front of the display surface so as to surround a partial region on the display surface of the liquid crystal display by an annular member disposed in front of the display surface of the liquid crystal display. (Patent Document 3).
JP-A-62-58112 Japanese Patent Laid-Open No. 11-248490 JP-A-2005-241626

  By the way, the present applicant has provided a plurality of LED light emitting portions at predetermined intervals on the annular member, and makes these LED light emitting portions emit light sequentially to make it visible as if the annular member is rotating. Japanese Patent Application No. 2004-318862 proposes a vehicular display device having a certain characteristic.

  In such a vehicle display device, an electric wiring for passing an electric current to the LED of each LED light emitting unit and a space for accommodating the electric wiring inside the annular member are required. An FPC (flexible wiring board) is used as the electrical wiring, and this is stored in the internal space of the storage groove opened on the back side so as not to affect the appearance of the annular member from the front.

  In addition, since it is necessary to close the opening of the storage groove so that the stored electrical wiring does not fall off from the annular member, in order to fix the holding member having a shape corresponding to the opening to the annular member with a fixing member such as a screw, In addition to the storage space for the electrical wiring, it is necessary to secure the storage space for the fixing member to be inserted in the storage groove.

  However, if the storage space for both the electrical wiring and the fixing member is secured in the storage groove, the width of the storage groove or the annular member has to be increased accordingly, and as a result, the display area of the liquid crystal display hidden by the annular member As a result, the visibility of the display deteriorates and the overall appearance may be impaired.

  However, only the storage space for the fixed member is secured in the storage groove so that the width of the storage groove or the annular member does not widen. Instead, the electrical wiring is divided at the place where the fixed member is inserted. If it does, it will have to draw out each electric wiring divided | segmented from the accommodation groove | channel to the exterior of an annular member, and since the routing of an electric wiring becomes complicated, it is not preferable.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a display surface in front of a display surface of a display such as a liquid crystal display, an organic EL display, or a plasma display including the above-described vehicle display device. In the display device in which the annular member that is visually recognized so as to surround the upper partial region is disposed, a plurality of light emitting units are provided on the front side of the annular member, and the light emitting units are accommodated inside the annular member, respectively. An object of the present invention is to provide a display device that can accommodate an electric wiring for a light source without dropping in the annular member without expanding the width of the annular member as much as possible.

In order to achieve the object, the display device according to the first aspect of the present invention is disposed on the back side of the annular member that is disposed in front of the display surface of the display and is visually recognized so as to surround a partial region on the display surface. A storage groove having an opening stores a plurality of light sources provided at intervals in the circumferential direction of the annular member, and electric power supply wirings on which the light sources are mounted on a mounting surface. A display device that emits light from a plurality of light emitting portions provided on the front surface side of the annular member by the light sources that are lit by supplied power, wherein the electrical wiring is connected to the housing groove from the opening. The mounting surface is stored in the storage groove so that the mounting surface extends in the insertion direction of the electrical wiring, and a holding member that closes the opening of the storage groove in which each of the light sources and the electrical wiring is stored includes the electrical wiring. Avoid the storage groove It is secured to the annular member by entering fixation member, wherein the restraining member connects a plurality of flat surfaces extending in the interior of the receiving groove along the insertion direction in a state that closes the opening of the receiving groove The electrical wiring is configured in an annular shape by connecting a plurality of mounting surfaces corresponding to the light sources, and the mounting surfaces correspond to the reinforcing pieces. It is arranged in the storage groove along each of the flat surfaces.

The display device of the present invention according to claim 2, in the display device of the present invention as set forth in claim 1, the locking piece is provided in one of said presser member and the edge of the electrical wiring A locking portion capable of locking the locking piece in a state where the electrical wiring is arranged along the reinforcing piece is provided on the other of the edge portion of the electric wiring and the holding member. It was set as the structure.

  According to the display device of the present invention described in claim 1, the space in the width direction of the annular member required for the electrical wiring in the storage groove of the annular member is larger than the dimension in the width direction of the mounting surface of the electrical wiring. It is only the dimension in the thickness direction of the overwhelmingly small mounting surface.

  For this reason, even in a configuration in which the electrical wiring is not divided and stored in the storage groove together with the fixing member in the storage groove portion where the fixing member of the holding member that closes the opening is inserted, the mounting surface is on the front surface or the back surface side of the annular member. Compared to the case where the electrical wiring is housed in the housing groove, the space of the housing groove required in the width direction of the annular member can be suppressed, and thereby the width of the annular member can be minimized.

Further, electric also sign line is a cyclic, each mounting surfaces of each light source are respectively implemented, it means that the flatly extending by being disposed along each planar surface corresponding restraining member Further, it is possible to prevent the electrical connection state between the mounting surface and the mounted light source from becoming defective due to the curvature of the mounting surface.

Further, according to the display device of the present invention described in claim 2 , in the display device of the present invention described in claim 1 , the locking member is fixed to the annular member by the locking to the locking portion. The electric wiring can be fixed to the reinforcing piece of the holding member to be positioned, and the electric wiring can be positioned in the storage groove.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 is an exploded perspective view showing a display device for a vehicle according to an embodiment of the display device of the present invention, FIG. 2 is an exploded perspective view seen from the back side around the annular member shown in FIG. 1, and FIG. 4 is an enlarged plan view of the main part in the unfolded state of the FPC shown, FIG. 4 is an enlarged perspective view of the main part showing the attachment state of the FPC shown in FIG. 3, and FIG. 5 is a view showing the assembled state around the annular member shown in FIG. FIG.

  In FIG. 1, a vehicle display device 1 includes a ring member (corresponding to an annular member in the claims) 2, a liquid crystal display (hereinafter abbreviated as “LCD”) 3, and a ring member 2. Are connected to each other, and includes a moving mechanism 4 for moving the ring member 2 and a back case 5, and these are assembled.

  The ring member 2 is disposed substantially at the center of the front surface of the display surface 3 a of the LCD 3, and can be linearly moved in the horizontal direction by driving a moving mechanism 4 disposed on the back surface of the LCD 3.

  The ring member 2 is made of an opaque plastic material, and a lens 6 is fitted in a circular opening 2a formed at the center. Although the lens 6 may have any shape such as a convex shape and a concave shape, a convex lens is used here.

  Various information indicating the traveling state of the vehicle can be displayed on the display surface 3a of the LCD 3. For example, on the display surface 3a, a display design corresponding to a substantially circular dial and a pointer indicating the measured amount of the running state of the vehicle can be displayed at the center position of the display surface 3a. An example of this display design is a tachometer for indicating the engine speed, and a tachometer scale is displayed near the outer periphery thereof. In addition, a pointer for rotating the tachometer to indicate the tachometer scale corresponding to the actual measured number of engine revolutions when the engine is started is also displayed. The circular dial and the pointer display constitute an analog indicating instrument. In areas other than the center position of the display surface 3a, a meter other than the tachometer, related information, and the like are displayed.

  In synchronization with the movement of the ring member 2, the vehicular display device 1 also moves the tachometer display design from the center position of the display surface 3 a so that the tachometer display design is always surrounded by the ring member 2.

  The design display by the LCD 3 can also be rotated by moving the dial inside the ring member 2. For example, when the design display is a tachometer, the safety zone of the dial (0 to 6000 rotations; 0 ”to“ 6 ”) and the red zone (7000 to 8000 revolutions; numeric scales“ 7 ”and“ 8 ”) relative to the ring member 2 change.

  Therefore, in the vehicular display device 1 according to the present embodiment, the front surface 211 of the ring member 2 is used to move and display, for example, the positions of the safety zone and the red zone on the tachometer in accordance with the rotational movement of the design display by the LCD 3. A plurality of (for example, twelve) light emitting units 2A to 2L are provided at predetermined intervals (for example, equal intervals). The light emitting portions 2A to 2L are configured by slits formed in accordance with the positions of the numbers on the scale of the display design, and serve as scales corresponding to the numbers.

  Among these light emitting units 2A to 2L, the light emitting units located at the positions corresponding to the numerical scales “0” to “6” indicating 0 to 6000 rotations indicating the safety zone of the tachometer are displayed in white, and are displayed in a circular dial. The light emitting portion located at the position corresponding to the number scales “7” and “8” indicating the 7000-8000 rotation indicating the red zone displayed near the lower right of the light is displayed in red and is in a position without the number scale. The light emitting unit is not lit.

  Accordingly, when the design display of the dial plate is rotated and moved by the LCD 3, the safety zone (number scales “0” to “6”), the red zone (number scales “7” and “8”), the number scales after the rotation movement is performed. The position of the light emitting unit that emits light in white and red and the light emitting unit that is turned off are changed according to the position where there is no light.

  And the structure around the ring member 2 including the light source system for appropriately emitting and displaying the light emitting portions 2A to 2L is shown in FIG. That is, the ring member 2 is formed with an accommodation groove 212 having an opening 213 on the back side facing the LCD 3. A plurality of flat mounting surfaces 226 are connected to the accommodation groove 212 to form a regular polygonal annular shape. After the FPC 22 configured as described above is accommodated, the opening 213 of the accommodation groove 212 is closed by the annular holding member 24. On each mounting surface 226, LED chips 231 and 232 (corresponding to the light sources in the claims) are mounted on both the front and back sides.

  As shown in FIG. 3, the FPC 22 is configured to have a substantially T-shape when unfolded by a linear main substrate portion 221 and a sub-substrate portion 228 branched from an intermediate portion thereof. Two conductive pattern bundles 222, 223, 224, and 225 that are connected to the sub-board 228 are provided on the main board 221 so as to be insulated from each other.

  Each of the conductive pattern bundles 222, 223, 224, and 225 has a plurality of conductive patterns, and the end of each conductive pattern is located at different positions spaced from each other in the extending direction of the main substrate portion 221. Exposed on the same surface side of the portion 221 constitutes a land (not shown) on which the LED chips 231 and 232 are mounted.

  Then, the FPC 22 is folded back at the center of the two conductive pattern bundles 222, 223, 224, and 225 with the LED chips 231 and 232 side up, and further folded at an intermediate position between the LED chips 231 and 232. As shown in FIG. 2, each of the front and back sides is formed into a regular polygonal annular shape having LED chips 231 and 232 mounted thereon, and each side portion of the regular polygon shape constitutes the mounting surface 226 described above. .

  Note that reference numeral 227 in FIG. 3 indicates a locking piece for locking to the holding member 24 formed on one piece of the main board portion 221 corresponding to one or a plurality of mounting surfaces 226.

  The holding member 24 has a plurality of flat surfaces 242 extending into the storage groove 212 in a state where the opening 213 is closed, and a regular polygonal shape corresponding to the FPC 22 is obtained by connecting the plurality of flat surfaces 242. The annular reinforcing piece 241 is configured.

  The above-described regular polygonal annular FPC 22 is fitted on the outer periphery of the reinforcing piece 241 of the holding member 24. In this state, as shown in FIG. The FPC 22 is in a state where the mounting surfaces 226 of the FPC 22 are arranged along the flat surfaces 242 of the reinforcing piece 241 by engaging with the engaging portions 243 formed on the holding member 24 corresponding to 241 is fixed.

  Incidentally, the LED chip 232 positioned on the back side of each mounting surface 226 with the FPC 22 fixed to the reinforcing piece 241 is flat due to the presence of the recess 244 formed on each flat surface 242 as shown in FIG. Interference with surface 242 is avoided.

  As shown in FIG. 2, the holding member 24 with the FPC 22 fixed to the reinforcing piece 241 as described above is attached to the corresponding female screw portion 214 of the storage groove 212 through the four screw holes 241 as shown in FIG. Each mounting surface 226 of the FPC 22 arranged along each flat surface 242 of the reinforcing piece 241 extending into the storage groove 212 by this fixing. The ring member 2 is disposed in the storage groove 212 so as to extend from the opening 213 of the ring member 2 in the insertion direction into the storage groove 212.

  The LED chips 231 and 232 on each mounting surface 226 of the FPC 22 are disposed in close proximity to the corresponding light emitting portions 2A to 2L of the ring member 2, and the sub-board portion 228 of the FPC 22 is open to the ring member 2. It is drawn out of the ring member 2 from the gap between the portion 213 and the holding member 24 and is connected to electrical wiring (not shown) from the LED driver circuit side.

  As shown in FIG. 5, the reinforcing piece 241 of the holding member 24 fixed in a state of extending into the storage groove 212 and the FPC 22 fixed thereto are screwed to the female screw portion 214 of the storage groove 212 or to this. Is disposed outside the mounting screw 25 to be avoided.

  As described above, according to the present embodiment, the storage groove 212 having the opening 213 on the back surface side of the ring member 2 which is disposed in front of the display surface 3a of the LCD 3 and is visually recognized so as to surround a partial region of the display surface 3a. The plurality of LED chips 231 and 232 provided at intervals over the entire circumference of the ring member 2 and the FPC 22 on which the LED chips 231 and 232 are mounted on the mounting surface 226 are housed and supplied from the FPC 22. The following configuration is adopted in the vehicular display device 1 that causes each of the light emitting portions 2A to 2L provided on the front surface side of the ring member 2 to emit light by the LED chips 231 and 232 that are lit by the generated electric power. .

  That is, the FPC 22 is stored in the storage groove 212 so that the mounting surface 226 extends in the insertion direction of the FPC 22 from the opening 213 to the storage groove 212, and the opening of the storage groove 212 in which the LED chips 231, 232 and FCC 22 are stored. The holding member 24 that closes 213 is fixed to the ring member 2 by an attachment screw 25 that is inserted into the housing groove 212 and is screwed to the female screw portion 214 while avoiding the FPC 22.

  For this reason, the space required for storing the FPC 22 is further secured in the storage groove 212 while the space required for storing the mounting screw 25 for mounting and fixing the holding member 24 to the ring member 2 is secured in the storage groove 212. Thus, compared with the case where the mounting surface 226 is opposed to the light emitting portions 2A to 2L and the FPC 22 is stored in the storage groove 212, the space of the storage groove 212 required in the width direction of the ring member 2 is reduced, and thereby the ring member The width of 2 can be minimized.

  In the above-described embodiment, the locking piece 227 is provided on the FPC 22 side, and the locking portion 243 that can be locked by the locking piece 227 is provided on the holding member 24 side. It is good also as a structure which provides a piece and provides the latching | locking part which can latch a latching piece in FPC22 side.

  Further, the locking piece 227 and the locking portion 243 of the FPC 22 and the holding member 24 may be omitted. However, the structure in which these are provided is the holding member 24 fixed to the ring member 2 by the mounting screw 25. This is advantageous because the FPC 22 can be fixed to the reinforcing piece 241 and the FPC 22 can be positioned in the storage groove 212.

  Furthermore, the structure which arrange | positions the mounting surface 226 of FPC22 along the several flat surface 242 which provides the cyclic | annular reinforcement piece 241 in the holding member 24, the FPC22 is fitted to the outer periphery, and comprises the reinforcement piece 241, Although it may be omitted, if this configuration is provided, the electrical connection between the conductive pattern bundles 222, 223, 224, 225 of each mounting surface 226 and the LED chips 231, 232 mounted on each mounting surface 226 is possible. This is advantageous because it is performed on the mounting surface 226 that extends flat without being curved by being along the flat surface 242, and it is possible to prevent the occurrence of poor electrical connection between them.

  Further, in the present embodiment, the FPC 22 is folded and overlapped at the centers of the two conductive pattern bundles 222, 223, 224, 225 with the LED chips 231, 232 side facing up over the entire main substrate portion 221 of the FPC 22. The case where the mounting surface 226 in which the LED chips 231 and 232 are mounted on both the front and back sides is described.

  However, for example, as shown in the enlarged plan view of the main part in the unfolded state in FIG. 6, the main substrate 221 is wide only in the vicinity of the mounting location of the LED chips 231, 232, and the wide portion on which the LED chip 232 is mounted is folded back. The configuration for configuring the mounting surface 226 in which the LED chips 231 and 232 are mounted on both the front and back sides, such as using a double-sided printing FPC 22, as shown in the enlarged plan view of the main part in the unfolded state in FIG. The configuration of the present embodiment shown in FIG.

  Furthermore, in the above-described embodiment, an LCD is used as a display. However, the present invention is not limited to this, as long as the display content can be changed in an electric program, such as an organic EL or a plasma display. Other display elements can be used.

  The ring member 2 is not limited to a circular shape, and may be any annular shape that partitions the display, such as a polygonal shape such as a quadrangle, or a shape in which a part of the circle is a straight line.

  Furthermore, in the above-described embodiment, the present invention has been described by taking the vehicular display device 1 as an example. However, the present invention is not limited to the vehicular display device, and the display is provided by an annular member disposed in front of the display surface of the display. If the display device is configured to be visually recognized from the front of the display surface so as to surround a partial area on the display surface, regardless of whether or not the annular member is movable along the display surface of the display The present invention can also be applied to display devices for other purposes.

It is a front exploded perspective view showing a display for vehicles concerning one embodiment of a display of the present invention. It is the disassembled perspective view seen from the back surface side around the annular member shown. It is a disassembled perspective view of the moving mechanism in the display apparatus for vehicles of FIG. FIG. 3 is an enlarged plan view of a main part in a developed state of the FPC shown in FIG. 2. It is a principal part expansion perspective view which shows the assembly | attachment state around the annular member shown in FIG. It is a principal part enlarged plan view in the deployment state of FPC concerning other embodiments. It is a principal part enlarged plan view in the deployment state of FPC concerning other embodiments.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display apparatus for vehicles 2 Ring member (annular member)
2A-2L Light emission part 211 Front surface 212 Storage groove 213 Opening 22 FPC (electrical wiring)
226 Mounting surface 227 Locking piece 231 232 LED chip (light source)
24 Holding member 241 Reinforcing piece 242 Flat surface 243 Locking portion 25 Mounting screw (fixing member)
3 Liquid crystal display (display)
3a Display surface

Claims (2)

Provided in the storage groove having an opening on the back side of the annular member, which is arranged in front of the display surface of the display and is visible so as to surround a part of the area on the display surface, spaced in the circumferential direction of the annular member A plurality of light sources and a power supply electrical wiring mounted on the mounting surface of each of the light sources, and the light sources that are turned on by the power supplied from the electrical wiring to the front side of the annular member A display device that emits light from each of a plurality of light emitting units provided,
The electrical wiring is stored in the storage groove such that the mounting surface extends in the insertion direction of the electrical wiring from the opening to the storage groove,
A holding member that closes the opening of the storage groove in which each of the light sources and the electrical wiring is stored is fixed to the annular member by a fixing member that is inserted into the storage groove to avoid the electrical wiring ,
The holding member has an annular reinforcing piece configured by connecting a plurality of flat surfaces extending into the storage groove along the insertion direction in a state where the opening of the storage groove is closed. The electrical wiring is formed in an annular shape by connecting a plurality of mounting surfaces corresponding to the light sources, and the storage grooves are arranged along the corresponding flat surfaces of the reinforcing pieces. A display device characterized by being arranged inside. A locking piece is provided on one of the edge of the electrical wiring and the restraining member, and the electrical wiring is used as the reinforcing piece on the other of the edge of the electrical wiring and the restraining member. along with arrangement where the display device according to claim 1, wherein said locking piece is capable of engaging the locking portion is provided.

Images