JP2006030842A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device free from complicated assembling by enabling stereoscopic display, and using one wiring member, even if a linear display part exists. <P>SOLUTION: An emissive display unit 40 includes first emitting parts 62, 63, 64, 65 and 66, and a second emitting part 68. A reflection means reflects light emitted by the second emitting part 68. A lightguide member includes a reflecting part 41b for reflecting further, by received light reflected on the reflecting part and is arranged ahead of the emission display unit 40. A first emitting part of the emission display unit 40 includes first display parts 62 and 65, arranged on the upper side of a linear display part 41b comprising the reflecting part, and second display parts 63, 64 and 66 arranged on the lower side of the linear display part 41b. The wiring member, electrically connected to a terminal part for impressing drive voltage on the first display part 62 and 65 and the second display parts 63, 64 and 66, is provided. A circularly polarizing member 42 is provided in front of the lightguide member. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a display device using a light emitting display such as an organic EL panel.

Conventionally, various organic EL panels have been proposed, for example, disclosed in Patent Document 1. The organic EL panel 1 has a laminated body 3 formed on a glass substrate 2, and the laminated body 3 includes a first electrode 4, an insulating layer 5, an organic layer 6, and a second electrode 7 made of aluminum (Al). (See FIG. 7). The first electrode 4 is made of a transparent electrode such as ITO (Indium Tin Oxide). The organic layer 6 is formed by sequentially forming a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer by means such as vapor deposition.
JP 2003-288984 A

  The laminate 3 is covered with a sealing glass 8, and the sealing glass 8 is fixed to the glass substrate 2 with an ultraviolet curable adhesive 9. The first electrode 4 has an anode portion 4a, an anode terminal portion 4b, and a cathode terminal portion 4c. The organic layer 6 is sandwiched between the anode part 4a and the second electrode 7, and the second electrode 7 is electrically connected to the cathode terminal part 4c. By connecting a power source to the anode terminal portion 4 b and the cathode terminal portion 4 c and applying a driving voltage between the anode portion 4 a and the second electrode 7, the organic layer 6 emits light.

  FIG. 8 is a front view of an organic EL panel 11 showing another conventional example. The organic EL panel 11 has variable display parts 12, 13, 14, fixed display parts 15, 16, and a linear display part 17. The linear display unit 17 has an elongated line shape extending in the horizontal direction. The variable display unit 12 and the fixed display unit 15 are arranged on the upper side of the linear display unit 17. The variable display units 13 and 14 and the fixed display unit 16 are arranged below the line display unit 17. A flexible wiring board 21 is connected to the upper side of the organic EL panel 11, and a flexible wiring board 22 is connected to the lower side of the organic EL panel 11.

  However, the display by the variable display units 12, 13, 14, the fixed display units 15, 16 and the line display unit 17 of the organic EL panel 11 is flat and has a problem that there is no stereoscopic effect. A first object of the present invention is to provide a display device capable of stereoscopic display.

Further, it is possible to connect all the terminal portions for applying a driving voltage to the variable display portions 12, 13, 14, the fixed display portions 15, 16 and the linear display portion 17 to one flexible wiring board 22. Therefore, the organic EL panel 11 has to be provided with two flexible wiring boards 21 and 22. That is, if there is a line display unit 17 extending in the horizontal direction, the lateral side S of the line display unit 17 is narrow, so that the drive voltage is applied to the variable display unit 12 and the fixed display unit 15 arranged above the linear display unit 17. It is impossible to connect to the flexible wiring board 22 by providing a terminal portion for applying a voltage so as to bypass the linear display portion 17 and pass through the lateral side S of the line display portion 17.
The second object of the present invention is to provide a display device that requires only one wiring member and is less likely to be complicated to mount even if there is a linear display portion.

  In order to solve the above problem, the present invention provides a light emitting display 40 having a first light emitting unit 62, 63, 64, 65, 66 and a second light emitting unit 68, as described in claim 1. Reflecting means 41a, 73 for reflecting the light L2 emitted from the second light emitting unit 40, and reflecting parts 41b, 71b for receiving and further reflecting the light L2 reflected by the reflecting means 41a, 73 Light guide members 41 and 71 disposed in front of the type display 40.

  Further, according to the present invention, as described in claim 2, the first light-emitting portion of the light-emitting display device 40 is disposed on the upper side of the linear display portions 41b and 71b including the reflecting portion. One display section 62, 65 and a second display section 63, 64, 66 disposed below the linear display sections 41b, 71b.

  Further, according to the present invention, the terminal portions 56b and 56c for applying a driving voltage to the first display portions 62 and 65 and the second display portions 63, 64, and 66 are provided. An electrically connected wiring member 45 is provided.

  Further, according to the present invention, as described in claim 4, the reflecting means is an inclined reflecting surface 41 a provided on the light guide member 41.

  Further, according to the present invention, as described in claim 5, the reflecting portion is a concave portion 41 b or 71 b formed in the light guide member 41 or 71.

  Further, according to the present invention, the light L1 emitted from the first light emitting parts 62, 63, 64, 65, 66 and the light L2 reflected by the reflecting parts 41b, 71b are provided. Are provided with turn-back members 22 and 74 for concealing the second light-emitting portion 68.

  Further, according to the present invention, color filters 70 and 72 are provided between the second light emitting portion 68 and the reflecting means 41a and 73 as described in claim 7.

  In the present invention, the light-emitting display device is an organic EL panel 40 as described in claim 8.

  Further, according to the present invention, a circularly polarizing member 42 is provided in front of the light guide members 41 and 71 as described in claim 9.

In addition, the present invention as described in claim 10,
A light emitting display 40 having a first light emitting display 62, 65, a second light emitting display 63, 64, 66, and an illumination light emitting unit 68;
Reflecting means 41a, 73 for reflecting the light L2 emitted by the illumination light emitting unit 68;
It is disposed between the first light emitting display portions 62, 65 and the second light emitting display portions 63, 64, 66 in front view, and shines by receiving the light L2 reflected by the reflecting means 41a, 73. Light guide members 41, 71 having linear display portions 41b, 71b and disposed in front of the light emitting display 40;
A wiring member 45 electrically connected to terminal portions 56b, 56c for applying a driving voltage to the first light emitting display portions 62, 65 and the second light emitting display portions 63, 64, 66;
It is what has.

  Along with the display by the light emitting display, the linear display portion is displayed at a position having a predetermined interval from the light emitting display, so that a three-dimensional display is obtained.

Hereinafter, an embodiment in which the present invention is applied to a vehicle display device will be described with reference to the accompanying drawings. 1 to 5 show the first embodiment.
Reference numeral 21 denotes a housing, and the housing 21 accommodates an indicator instrument to be described later. Reference numeral 22 denotes a turning member. The turning member 22 is locked to the housing 21 by a locking claw (not shown). Reference numeral 23 denotes a translucent cover, and the translucent cover 23 includes a curved portion 23a and a rib portion 23b. The translucent cover 23 is made of a translucent resin such as acrylic or polycarbonate. The translucent cover 23 is locked to the facing member 22 by locking claws (not shown) provided on the rib portion 23b.

  The housing 21 accommodates four indicating instruments, that is, a fuel gauge 25, a speedometer 26, a tachometer 27, and a water temperature gauge 28. The speedometer 26 and the tachometer 27 are larger than the fuel gauge 25 and the water temperature gauge 28, and are arranged between the fuel gauge 25 and the water temperature gauge 28. The facing member 22 corresponds to a circular opening 22a, 22c, 22d corresponding to the fuel gauge 25, the tachometer 27, and the water temperature gauge 28, a substantially fan-shaped opening 22b corresponding to the speedometer 26, and an organic EL panel described later. A rectangular opening 22e is provided.

  Each indicating instrument 25, 26, 27, 28 has a dial plate 31, a light emitting diode 32, a light guide plate 33, a pointer 34, and a stepping motor 35, respectively. The light emitting diode 32 and the stepping motor 35 are mounted on a circuit board 36. The dial 31 is formed by forming a translucent layer made of transmissive ink on the indicator portion 38 on a translucent substrate made of a resin such as polycarbonate and printing a light shielding layer made of black ink except for the indicator portion 38. It is. The light emitting diode 32 and the light guide plate 33 are disposed behind the dial 31, and the indicator portion 38 is transmitted and illuminated by the light from the light emitting diode 32. The pointer 34 is rotated by a stepping motor 35 to indicate the indicator portion 38 of the dial 31. The light emitted from the light emitting diode 32 is guided to the pointer 34 by the reflecting surface 33a of the light guide plate 33, and the indicator 39 of the pointer 34 shines.

  Reference numeral 40 denotes an organic EL panel, and the organic EL panel 40 is disposed behind the turn-back member 22. Reference numeral 41 denotes a light guide member, and the light guide member 41 is disposed between the organic EL panel 40 and the facing member 22. The light guide member 41 is made of a translucent resin such as acrylic or polycarbonate, and has a substantially flat plate shape. The light guide member 41 has an inclined reflecting surface 41a (reflecting means), and reflects light L2 emitted from an illumination light emitting unit 68 described later.

  The light guide member 41 is formed with a recess 41b (reflecting portion), and the recess 41b shines by the light L2 reflected by the inclined reflecting surface 41a. The recess 41b has a triangular cross section, and has a linear shape extending in the lateral direction when viewed from the front (see FIG. 3). A blue color filter 70 is affixed to the back surface of the light guide member 41, and converts white light L2 emitted from an illumination light emitting unit 68 described later into blue. Reference numeral 42 denotes a circularly polarizing member. The circularly polarizing member 42 is attached to the front surface of the light guide member 41. The circularly polarizing member 42 is composed of a linearly polarizing plate and a birefringent plate. The birefringent plate is sometimes referred to as a ¼ wavelength plate.

  A rectangular opening 22e is formed in the turning member 22, and the organic EL panel 40 is disposed at a position corresponding to the opening 22e. Reference numeral 44 denotes a case body. The case body 44 holds the organic EL panel 40 and the light guide member 41. Reference numeral 45 denotes a flexible wiring board (wiring member). One end of the flexible wiring board 45 is connected to the organic EL panel 40, and the other end is connected to the connector 48 of the circuit board 36.

  Next, the organic EL panel 40 will be described in detail with reference to FIGS. The organic EL panel 40 is formed by sequentially laminating a first electrode 56 made of ITO, an insulating layer 57, an organic layer 58, a second electrode 59 made of aluminum (Al), etc. on the rear surface of the translucent substrate 55, A sealing glass 60 is disposed on the rear side of the second electrode 59. The sealing glass 60 is fixed to the translucent substrate 55 with an ultraviolet curable adhesive. The first electrode 56 includes a segment portion 56a, an anode terminal portion 56b connected to the segment portion 56a, and a cathode terminal portion 56c. The organic layer 58 may have at least a light emitting layer, but may have a hole transport layer, an electron transport layer, or the like.

  The organic EL panel 40 has a horizontally long rectangle when viewed from the front, and includes variable display portions 62, 63, 64, fixed display portions 65, 66, and an illumination light emitting portion 68. The variable display sections 62, 63, 64, the fixed display sections 65, 66, and the illumination light emitting section 68 emit white light when a driving voltage is applied. The variable display part 62 (first display part) and the fixed display part 65 (first display part) are arranged above the recess 41b in front view. The variable display parts 63 and 64 (second display part) and the fixed display part 66 (second display part) are arranged below the recess 41b in front view.

  The illumination light emitting unit 68 is composed of a plurality of light emitting segments, and is arranged in a row in the horizontal direction. The illumination light emitting portion 68 is hidden by the turn-back member 22. The anode terminal portion 56 b and the cathode terminal portion 56 c for applying a driving voltage to the variable display portions 62, 63, 64, the fixed display portions 65, 66 and the illumination light emitting portion 68 are electrically connected to the flexible wiring board 45. It is connected.

  The light L1 emitted from the variable display sections 62, 63, 64 and the fixed display sections 65, 66 passes through the light guide member 41 and the opening 22e and reaches the driver's viewpoint. The light L2 emitted from the illumination light emitting unit 68 passes through the color filter 70, is reflected by the inclined reflection surface 41a of the light guide member 41, and is further reflected by the recess 41b.

FIG. 6 shows a second embodiment. In the second embodiment, the same portions as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
The recess 71b of the light guide member 71 has a semicircular cross section. The color filter 72 is affixed to a portion of the organic EL panel 41 that faces the illumination light emitting unit 68. 73 is a reflecting mirror (reflecting means), and this reflecting mirror 73 is held in an inclined state by the holding portion 74b of the turning member 74, and guides the light L2 emitted from the illumination light emitting portion 68 of the organic EL panel 40. Reflected toward the optical member 71. The light L2 reflected by the reflection mirror 73 shines the recess 71b.

  According to the first and second embodiments, since the concave portions 41b and 71b at the predetermined distance D from the variable display portions 62, 63, and 64 and the fixed display portions 65 and 66 of the organic EL panel 40 shine, Display. In addition, the anode terminal portion 56b and the cathode terminal portion 56c for applying a driving voltage to the variable display portions 62, 63, 64 and the fixed display portions 65, 66 are electrically connected to one flexible wiring board 45. It is not necessary to provide a plurality of flexible wiring boards.

  The present invention is not limited to the first and second embodiments, and can be variously modified. For example, the light emitting display may be a liquid crystal display provided with a backlight. . Further, the circularly polarizing member 42 may be omitted, but the display contrast by the organic EL panel 40 can be improved by providing the circularly polarizing member 42. In addition, the color filters 70 and 72 may not be provided, but by providing the color filters 70 and 72, display colors (for example, white) by the variable display units 62, 63, and 64 and the fixed display units 65 and 66 of the organic EL panel 40 are provided. ) And the display colors (for example, blue) of the recesses 41b and 71b of the light guide members 41 and 71 can be made different.

BRIEF DESCRIPTION OF THE DRAWINGS The front view of the display apparatus for vehicles which shows the 1st Example of this invention. Sectional drawing of the display apparatus for vehicles which shows an Example same as the above. The front view of the organic electroluminescent panel which shows an Example same as the above. The disassembled perspective view of the organic electroluminescent panel which shows an Example same as the above. Sectional drawing which shows the principal part which shows an Example same as the above. The principal part sectional view showing a second embodiment of the present invention. Sectional drawing of the organic electroluminescent panel which shows a prior art example. The front view of the organic electroluminescent panel which shows another prior art example.

Explanation of symbols

22 Turning member 22e Opening (window)
40 Organic EL panel (light emitting display)
41 Light guide member 41a Inclined reflecting surface (reflecting means)
41b Recessed part (reflective part)
42 Circularly polarizing member 45 Flexible wiring board (wiring member)
56b Anode terminal portion 56c Cathode terminal portion 62 Variable display portion (first light emitting portion)
63 Variable display section (first light emitting section)
64 Variable display section (first light emitting section)
65 Fixed display section (first light emitting section)
66 Fixed display section (first light emitting section)
68 Light-emitting part for illumination (second light-emitting part)
70 Color filter 71 Light guide member 71b Recessed portion (reflective portion)
72 Color filter 73 Reflection mirror (reflection means)

Claims (10)

  A light emitting display having a first light emitting part and a second light emitting part, a reflecting means for reflecting light emitted from the second light emitting part, and a reflecting part for further reflecting the light reflected by the reflecting means And a light guide member disposed in front of the light emitting display.   The first light emitting unit of the light emitting display is disposed on a lower side of the linear display unit and a lower side of the linear display unit. The display device according to claim 1, further comprising: a second display unit.   The display device according to claim 2, wherein a wiring member that is electrically connected is provided in a terminal portion for applying a driving voltage to the first display portion and the second display portion.   The display device according to claim 1, wherein the reflection unit is an inclined reflection surface provided on the light guide member.   The display device according to claim 1, wherein the reflection portion is a recess formed in the light guide member.   A turning member is provided that has a window portion through which the light emitted from the first light emitting portion and the light reflected by the reflecting portion pass, and that conceals the second light emitting portion. Item 4. The display device according to Item 1.   The display device according to claim 1, wherein a color filter is provided between the second light emitting unit and the reflecting unit.   The display device according to claim 1, wherein the light emitting display is an organic EL panel.   The display device according to claim 8, wherein a circularly polarizing member is provided in front of the light guide member. A light-emitting display having a first light-emitting display, a second light-emitting display, and a light-emitting unit for illumination;
Reflecting means for reflecting the light emitted by the illumination light emitting unit;
The light emitting display includes a linear display unit that is disposed between the first light emitting display unit and the second light emitting display unit in a front view and shines by receiving light reflected by the reflecting means. A light guide member disposed in front of the vessel;
A wiring member electrically connected to a terminal portion for applying a driving voltage to the first light emitting display portion and the second light emitting display portion;
A display device comprising:

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