JP6315261B2 - Display device - Google Patents

Description

  The present invention relates to a display device including a plurality of circuit boards.

  Conventionally, a display device mounted on a vehicle such as an automobile displays a variety of information in a limited space, and its display form and circuit configuration are complicated. There is a display device comprising a plurality of circuit boards. In this case, it can be realized by using wiring for electrical connection between circuit boards.

Japanese Patent No. 4849378

  However, with the diversification of display information, it is necessary to widen the display within the display device, and the number of wirings connecting a plurality of display units and a plurality of circuit boards is increased and complicated. For this reason, in order to prevent the wiring from being damaged accidentally during assembly or maintenance, the routing of the wiring has become more problematic than before.

  The present invention has been made in view of these problems, and provides a display device that is easy to assemble or maintain and that does not cause disconnection of wiring.

  The present invention controls a first display unit that displays first information, a second display unit that displays second information, and the first display unit and the second display unit. A first circuit board having an element and a first light emitting element for illuminating the first display section; a second circuit board having a second light emitting element for illuminating the second display section; A first wiring member that electrically connects one circuit board and the second display unit; a second wiring member that electrically connects the first circuit board and the second circuit board; The first display section, the second display section, the first circuit board, the second circuit board, the first wiring section, and a middle case for storing the second wiring section, And the middle case has a guide portion for guiding the first wiring member to the back side of the first substrate.

  Further, according to the present invention, the guide portion includes a groove portion that guides the first wiring member, and a hole portion that guides the first wiring member to a connector provided on the back side of the first circuit board. It is characterized by having.

  It is possible to provide a display device that is easy to assemble or maintain and does not cause a break in wiring.

Sectional drawing which shows one Embodiment of this invention. The front view which shows the same embodiment. The block diagram which shows the system configuration | structure of the display apparatus by the embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  The display device (not shown) includes a first display unit 10, a second display unit 20, a first circuit board 30, a second circuit board 40, a first wiring member 50, The second wiring member 60, the middle case 70, and the outer case 80 are mainly configured and provided on the instrument panel of the vehicle.

  The first display unit 10 includes liquid crystal display elements 11a, 11b, and 11c, light emitting diodes 12a, 12b, and 12c for transmitting and illuminating the liquid crystal display elements 11a, 11b, and 11c, and liquid crystal display elements 11a, 11b, and 11c. And a light-reflective dimming member (not shown) for maintaining the distance between the light-emitting diodes 12a, 12b, and 12c and uniformly illuminating the illumination light on the liquid crystal display elements 11a, 11b, and 11c. Yes. In addition, the 1st display part 10 applies not only the display by liquid crystal display element 11a, 11b, 11c but the instruction | indication display which reads the instruction value which changes with rotation of a pointer | guide (not shown), for example is applied. it can. A self-luminous display element such as an organic EL can also be applied. The light emitting diodes 12a, 12b, and 12c can be used for other illumination of the first display unit 10. Further, in the present embodiment, the liquid crystal display element and the light emitting diode provided in the first display unit 10 are illustrated as having three sets. However, the configuration including one set or two or more sets and the number of light emitting diodes indicate the number of liquid crystal display elements. More configurations can be applied.

  The second display unit 20 maintains a distance between the liquid crystal display element 21, the light emitting diode 22 for transmitting and illuminating the liquid crystal display element 21, the liquid crystal display element 21 and the light emitting diode 22, and displays the illumination light on the liquid crystal display. A light-reflecting light control member (not shown) for uniformly illuminating the element 21 is provided. The second display unit 20 can be applied not only to display by the liquid crystal display element 21 but also to a self-luminous display element such as an organic EL. The light emitting diode 22 can be used for other illumination of the second display unit 20. In the present embodiment, the configuration of the liquid crystal display element and the light emitting diode provided in the second display unit 20 is exemplified. However, the configuration including two or more sets and the configuration in which the number of light emitting diodes exceeds the number of liquid crystal display elements are also possible. Applicable.

  The first circuit board 30 is electrically connected to the liquid crystal display elements 11 a, 11 b, 11 c and the light emitting diodes 12 a, 12 b, 12 c, and a control element 32 such as a microcomputer for displaying the first display unit 10. The display drive circuits 33a, 33b, and 33c including the illumination drive circuits 34a, 34b, and 34c for illuminating the first display unit 10 are mounted and held in the middle case 70. Further, the first circuit board 30 is mounted with a display drive circuit 33d for performing display on the second display unit 20, and a connector 31a mounted near the end of the first circuit board 30 and the first circuit board 30 The wiring member 50 is electrically connected to the liquid crystal display element 21. Further, the first circuit board 30 is mounted near the end of the first circuit board 30, the connector 31 b mounted near the end of the first circuit board 30, the second wiring member 60, and the second circuit board 40. It is electrically connected to the second circuit board 40 via the connector 41. An external connector (not shown) is mounted on the first circuit board 30 and is electrically connected to the vehicle side. The display device (not shown) inputs signals relating to the power source and vehicle information via an external connector (not shown), and these signals are supplied to the display drive circuits 33a, 33b, 33c, 33d and the illumination drive circuit. Processing can be performed by 34a, 34b, 34c, and 42, and the 1st display part 10 and the 2nd display part 20 can be displayed and illuminated.

  The second circuit board 40 is electrically connected to the light emitting diode 22, mounted with an illumination driving circuit 42 for illuminating the second display unit 20, and held by the middle case 70.

  As the first wiring member 50, a flexible material such as a film cord or a flexible printed wiring board for electrically connecting the second liquid crystal display element 21 and the first circuit board 30 can be applied. Further, the first wiring member 50 is selected and used with a length suitable for the assembly work described later.

  As the second wiring member 60, a flexible material such as a film cord or a flexible printed wiring board for electrically connecting the first circuit board 30 and the second circuit board 40 can be applied. Also, the second wiring member 60 is selected and used with a length suitable for the assembly work described later.

  The intermediate case 70 can be made of a transparent or translucent light-transmitting synthetic resin material. The assembly position of the first wiring member 50 is opened, and the first display unit 10 is provided inside the intermediate case 70. The second display unit 20, the first circuit board 30, and the second circuit board 40 can be held using fixing means, screws, or the like. Further, the middle case 70 forms a guide portion 71 a that guides the first wiring member 50 to the back side of the first circuit board 30. The guide portion 71 a includes a groove portion 71 b that guides the first wiring member 50, and a hole portion 71 c that is connected to the groove portion 71 b and guides to the connector 31 a provided on the back side of the first circuit board 30. Wiring can be performed by the guide portion 71a without damaging the first wiring member 50.

  A synthetic resin material can be applied to the outer case 80, and the inner case 70 can be held using fixing means, screws, or the like.

  With such a configuration, even after the first display unit 10, the second display unit 20, the first circuit board 30, and the second circuit board 40 are held in the middle case 70, the first wiring The member 50 and the second wiring member 60 can be easily attached to and detached from the connectors 31a, 31b, and 41.

  Therefore, the first wiring member 50 and the second wiring member 60 can be easily accommodated without the first wiring member 50 and the second wiring member 60 being bitten. Disconnection of the wiring member 50 and the second wiring member 60 can be prevented.

  The vehicular instrument of the present invention has been described by taking the configuration of the embodiment described above as an example, but the present invention is not limited to this, and the scope of the present invention is not deviated from other configurations. It goes without saying that various improvements and design changes are possible.

DESCRIPTION OF SYMBOLS 10 1st display part 11a Liquid crystal display panel 11b Liquid crystal display panel 11c Liquid crystal display panel 12a Light emitting element 12b Light emitting element 12c Light emitting element 20 2nd display part 21 Liquid crystal display panel 22 Light emitting element 30 1st circuit board 31a Connector member 31b Connector member 32 control element 33a display drive circuit 33b display drive circuit 33c display drive circuit 33d display drive circuit 34a illumination drive circuit 34b illumination drive circuit 34c illumination drive circuit 35 interface circuit 40 second circuit board 41 connector member 42 illumination drive circuit 50 First wiring member 60 Second wiring member 70 Middle case 71a Guide portion 71b Groove portion 71c Hole portion 72 Cavity portion 80 Outer case

Claims (2)

A first display for displaying first information;
A second display for displaying second information;
A first circuit board having a control element for controlling the first display unit and the second display unit and a first light emitting element for illuminating the first display unit;
A second circuit board having a second light emitting element for illuminating the second display unit;
A first wiring member that electrically connects the first circuit board and the second display unit;
A second wiring member for electrically connecting the first circuit board and the second circuit board;
An intermediate case for storing the first display unit, the second display unit, the first circuit board, the second circuit board, the first wiring unit, and the second wiring unit;
With
The display device according to claim 1, wherein the middle case has a guide portion that guides the first wiring member to the back side of the first substrate. The guide portion includes a groove portion that guides the first wiring member, and a hole portion that guides the first wiring member to a connector provided on the back side of the first circuit board. The display device according to claim 1.

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