CN107084353B - Electrode connection structure between matrix OLED screen bodies - Google Patents
Electrode connection structure between matrix OLED screen bodies Download PDFInfo
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- CN107084353B CN107084353B CN201710282739.XA CN201710282739A CN107084353B CN 107084353 B CN107084353 B CN 107084353B CN 201710282739 A CN201710282739 A CN 201710282739A CN 107084353 B CN107084353 B CN 107084353B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/0015—Fastening arrangements intended to retain light sources
- F21V19/0025—Fastening arrangements intended to retain light sources the fastening means engaging the conductors of the light source, i.e. providing simultaneous fastening of the light sources and their electric connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
- F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
- F21V23/005—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention provides an electrode connection structure between matrix OLED (organic light emitting diode) screen bodies, which comprises at least two OLED screen bodies arranged side by side and an FPC (flexible printed circuit) flexible circuit board, wherein the FPC flexible circuit board comprises a circuit board main body part and a circuit board connection part which is arranged at the end part of the circuit board main body part and extends along the arrangement direction of a plurality of OLED screen bodies, and each OLED screen body is fixed with the circuit board connection part; at least one OLED light-emitting unit is arranged on the front surface of each OLED screen body; the circuit board connecting part is integrated with a plurality of connecting lines led out from the circuit board main body part, and the connecting lines are respectively connected with electrodes of the OLED light-emitting units in the OLED screen bodies. The electronic circuits for connecting and controlling the OLED screen bodies are integrated in the FPC flexible circuit board, so that the number of connectors for connecting the FPC flexible circuit board with the OLED screen bodies is reduced, and the mounting efficiency of the OLED screen bodies is improved.
Description
Technical Field
The invention relates to the technical field of automobile illumination, in particular to an electrode connection structure between matrix OLED screen bodies.
Background
At present, the global automobile lighting market is undergoing an unprecedented technological revolution, and the integration of an OLED new light source, an automobile electronic technology and an artificial intelligence technology brings great ideas innovation and shock to the research and development of an automobile lighting system. Compared with the traditional halogen Light source and LED Light source, the OLED (Organic Light-Emitting Diode) new Light source does not need backlight and is a surface Light source, so that the space is greatly saved. With the increasing popularity of new light sources of OLED in the automotive lighting field, the demand of OLED increases sharply, and compared with OLED display technology, the OLED lighting screen has smaller area and more quantity.
Today, OLEDs are also a primary stage of research in the automotive lamp field, and in general, a design of a light emitting pattern in an OLED screen is adopted; for example, a car tail lamp with a plurality of OLED panels is disclosed in the chinese patent application 201610622033.9, in which a plurality of OLED panels are disposed, but only one light emitting pattern is designed in each OLED panel. The design of the single-light-emitting pattern brings great limitation to modeling, and meanwhile, the superiority of the OLED lighting technology cannot be fully exerted.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an electrode connection structure between matrix OLED panels, which can increase the assembly efficiency while doubling the OLED light emitting area in a limited space.
In order to achieve the above-mentioned purpose, the invention provides an electrode connection structure between matrix OLED screen bodies, comprising at least two OLED screen bodies arranged side by side and an FPC flexible circuit board, wherein the FPC flexible circuit board comprises a circuit board main body part and a circuit board connection part which is arranged at the end part of the circuit board main body part and extends along the arrangement direction of a plurality of OLED screen bodies, and each OLED screen body is fixed with the circuit board connection part; the front face of each OLED screen body is provided with at least one OLED light-emitting unit, and each OLED light-emitting unit comprises a light-emitting area, an electrode and a lead wire connecting the light-emitting area and the electrode; the circuit board connecting part is integrated with a plurality of connecting lines led out from the circuit board main body part, and the connecting lines are respectively connected with electrodes of the OLED light-emitting units in the OLED screen bodies.
Further, the back of each OLED screen body is provided with a containing groove extending along the length direction of the connecting part of the circuit board, the connecting part of the circuit board is fixed in the containing groove of each OLED screen body, the electrode of each OLED light-emitting unit in each OLED screen body is arranged on the back of the OLED screen body exposed from the containing groove, and a plurality of connecting lines are arranged side by side along the width direction of the containing groove.
Preferably, the accommodating groove is formed at the outer side edge of the back surface of the OLED screen body.
Further, a circuit board main body part of the FPC flexible circuit board extends along the width direction of the accommodating groove, and is arranged at a side end OLED screen body positioned at the side edge of the plurality of OLED screen bodies, is arranged at the middle of the accommodating groove in the side end OLED screen body and is adjacent to a cathode of the side end OLED screen body; the plurality of connecting lines used for connecting the FPC flexible circuit board with the side OLED screen body are respectively routed to two sides of the circuit board main body part along the width direction of the circuit board main body part, and the plurality of connecting lines used for connecting the FPC flexible circuit board with the rest OLED screen body are routed to the same side of the circuit board main body part along the width direction of the circuit board main body part.
Further, the electrodes of the OLED light-emitting units in each OLED screen body comprise an anode and a cathode, and the light-emitting areas in each OLED screen body share one cathode.
Preferably, the cathode in each OLED screen is disposed between two adjacent anodes.
Preferably, electrodes of the OLED light-emitting units in each OLED screen body are arranged side by side along the arrangement direction of the OLED screen bodies.
Further, each OLED light-emitting unit in each OLED panel further includes a conductive grid provided at the outer peripheral boundary of the light-emitting region, the conductive grid being made of a low-resistance material and conductively connected to the lead-out wire, and the conductive grids of the OLED light-emitting units being insulated from each other.
Preferably, the material of the conductive grid is Mo or Al.
Further, the circuit board connecting part of the FPC flexible circuit board is fixed on each OLED screen body in a hot-press binding mode.
As described above, the electrode connection structure between the matrix OLED panels according to the present invention has the following beneficial effects:
firstly, the electronic circuits for connecting and controlling a plurality of OLED (organic light emitting diode) panels are integrated in one FPC (flexible printed circuit) flexible circuit board, so that the number of connectors for connecting the FPC flexible circuit board with the OLED panels is reduced, and the mounting efficiency of the OLED panels is improved. Secondly, a plurality of OLED light-emitting units are arranged in the same OLED screen body, so that the OLED light-emitting area is increased in a limited space in multiple, the advantages of OLED area light source technology are fully utilized, and the advantages of OLED technology are fully exerted.
Drawings
Fig. 1 is a front view of an electrode connection structure between matrix OLED panels in the present application.
Fig. 2 is a back view of an electrode connection structure between the matrix OLED panels of the present application.
Fig. 3 is a schematic structural diagram of the FPC flexible circuit board at the side end OLED screen in the present application.
FIG. 4 is a schematic structural view of an embodiment of a monolithic OLED panel according to the present application.
Fig. 5 is a front view of fig. 4.
Fig. 6 is a rear view of fig. 4.
Description of element reference numerals
1 OLED screen body
11. Containing groove
12. OLED screen body with side ends
13. First OLED screen body
14. Second OLED screen body
2 OLED light-emitting unit
21. Light emitting region
22. Anode
23. Cathode electrode
24. Conductive grid
3 FPC flexible circuit board
31. Circuit board main body
32. Circuit board connecting part
33. Connection circuit
4. Binding area
51. First OLED light-emitting unit
52. Second OLED light-emitting unit
53. Third OLED light-emitting unit
61. A first light-emitting region
62. A second light-emitting region
63. A third light-emitting region
71. First conductive grid
72. Second conductive grid
73. Third conductive grid
81. First anode
82. Second anode
83. Third anode
91. First connecting line
92. Second connecting line
93. Third connecting line
94. Fourth connecting line
95. Fifth connecting line
96. Sixth connecting line
97. Seventh connecting line
98. Eighth connecting line
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the invention, are included in the spirit and scope of the invention which is otherwise, without departing from the spirit or scope thereof. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like are used herein for descriptive purposes only and not for purposes of limitation, and are intended to limit the scope of the invention as defined by the claims and the relative terms thereof as construed as corresponding to the claims.
The application provides an electrode connection structure between matrix OLED screen body, is applied to car light illumination field. As shown in fig. 1 and fig. 2, the electrode connection structure between the matrix-type OLED panels includes at least two parallel OLED panels 1 and an FPC flexible circuit board 3, so that multiple OLED panels 1 are arranged in a matrix, and the FPC flexible circuit board 3 is used to connect each OLED panel 1 with a control module, so as to implement lighting control, lighting sequence control, and the like for the OLED lighting units 2 in each OLED panel 1. The front surface of each OLED screen body 1 is provided with at least one OLED light-emitting unit 2, and the number of the OLED light-emitting units 2 in each OLED screen body 1 is specifically determined according to actual design requirements and application requirements and can be three, four, five and the like; each OLED light-emitting unit 2 includes a light-emitting area 21, an electrode, and a lead-out wire connecting the light-emitting area 21 and the electrode, the electrode includes an anode 22 and a cathode 23, the back surface of each OLED panel 1 is provided with a receiving groove 11 extending along the arrangement direction of a plurality of OLED panels 1, the receiving groove 11 penetrates the back surface of the OLED panel 1 backwards along the thickness direction of the OLED panel 1, and the electrode of each OLED light-emitting unit 2 in each OLED panel 1 is disposed on the back surface of the OLED panel 1 exposed from the receiving groove 11. The FPC flexible circuit board 3 includes a circuit board main body portion 31, and a circuit board connection portion 32 disposed at an end portion of the circuit board main body portion 31 and extending along an arrangement direction of the OLED screen bodies 1, where the circuit board connection portion 32 is fixed in the receiving groove 11 of each OLED screen body 1, so as to fix the FPC flexible circuit board 3 and the OLED screen bodies 1; the accommodating groove 11 on each OLED screen 1 also forms a binding area 4 on the OLED screen 1 for fixing the FPC flexible circuit board 3. Among the plurality of OLED panels 1, the OLED panel 1 positioned at the side is defined as a side-end OLED panel 12, so that two side-end OLED panels 12 are arranged, and the circuit board main body part 31 is positioned at one side-end OLED panel 12; the circuit board connection part 32 is integrated with a plurality of connection lines 33 led out from the circuit board main body part 31, and the ends of the connection lines 33 are respectively connected with the electrodes of the OLED light emitting units 2 of the OLED screen bodies 1, so that all electronic circuits for controlling the connection of the OLED light emitting units 2 are integrated on the FPC flexible circuit board 3. In particular, as shown in fig. 2 and 3, a plurality of connection lines 33 are arranged side by side in the width direction of the accommodation groove 11, and a plurality of connection lines 33 for connecting the FPC flexible circuit board 3 with the remaining OLED panels 1 except for the side-end OLED panel 12 are routed to the same side; meanwhile, the circuit board connection portion 32 is attached to the back surface of the OLED panel 1 exposed from the accommodating groove 11, so that the width direction of the circuit board connection portion 32 is consistent with the width direction of the accommodating groove 11 (i.e., the length direction or the width direction of the OLED panel 1), and the thickness direction of the circuit board connection portion 32 is consistent with the thickness direction of each OLED panel 1. In the present application, as shown in fig. 1 and 2, the accommodating groove 11 extends laterally along the width direction of the OLED panel 1, so that the width direction of the accommodating groove 11 coincides with the length direction of the OLED panel 1 and is the up-down direction of the drawing in fig. 1 and 2.
In the electrode connection structure between the matrix type OLED screen bodies, the electronic circuits for connection control of the OLED screen bodies 1 are integrated in the FPC flexible circuit board 3, so that the number of connectors for connection of the FPC flexible circuit board 3 and the OLED screen bodies 1 is reduced, and the installation efficiency of the OLED screen bodies 1 is improved. The OLED light-emitting units 2 are arranged in the same OLED screen body 1, so that the OLED light-emitting area 21 is increased in a limited space in multiple, the advantages of OLED area light source technology are fully utilized, the advantages of OLED technology are fully exerted, and functions and effects which cannot be realized by the traditional LED light source are realized. Meanwhile, as the number of the OLED light-emitting units 2 increases, the control lines for connecting the electrodes of each OLED light-emitting unit 2 in the plurality of OLED screen bodies 1 with the FPC flexible circuit board 3 are multiplied, so that the plurality of connecting lines 33 are arranged side by side along the width direction of the accommodating groove 11 during wiring, and the wiring design is reasonable and ordered; and the width direction of the circuit board connecting part 32 and the width direction of the binding area 4 are consistent with the width direction of the accommodating groove 11, and the thickness direction of the circuit board connecting part 32 is consistent with the thickness direction of the OLED screen body 1, so that the thickness of the circuit board connecting part 32 and the width of the binding area 4 of the FPC flexible circuit board 3 and each OLED screen body 1 are effectively reduced, the circuit board connecting part 32 in the FPC flexible circuit board 3 is prevented from exceeding the outer boundary and the back of the OLED screen body 1, the appearance is attractive, the occupied space of the OLED screen body 1 can be reduced, and the OLED screen has extremely high practical value.
Preferably, the circuit board connection portion 32 of the FPC flexible circuit board 3 is fixed to the OLED screen body 1 by means of thermal compression bonding, and the length of the circuit board connection portion 32 in the FPC flexible circuit board 3 depends on the installation mode and structure of the OLED screen bodies 1.
Further, the accommodating groove 11 on the back of each OLED screen 1 is a long linear groove and extends to one outer side of the OLED screen 1, so that the accommodating groove 11 is opened at the outer side of the back of the OLED screen 1, and each OLED screen 1 forms a step structure at the accommodating groove 11, as shown in fig. 4. The electrodes of each OLED light-emitting unit 2 are arranged side by side along the length direction of the accommodating groove 11, or, in other words, the anode 22 and the cathode 23 of each OLED light-emitting unit 2 are arranged in a straight line, which is beneficial to orderly arrangement of the connection lines 33 when each OLED screen 1 is wired with the FPC flexible circuit board 3. Preferably, in each OLED, the electrode of each OLED light-emitting unit 2 includes an anode 22 and a cathode 23, the light-emitting area 21 of each OLED light-emitting unit 2 shares one cathode 23, and the anode 22 of the light-emitting area 21 of each OLED light-emitting unit 2 is led out separately, so that the wiring structure is simplified, and wiring is facilitated. Furthermore, a common cathode 23 may be located on one side of the plurality of anodes 22; however, for more convenient routing, as shown in fig. 2, the present application sets a common cathode 23 between two adjacent anodes 22, so that the setting position of the cathode 23 is closer to the central positions of the plurality of anodes 22.
Further, since the circuit board main body 31 of the FPC flexible circuit board 3 extends along the width direction of the receiving groove 11, the FPC flexible circuit board 3 formed by the circuit board main body 31 and the circuit board connection portion 32 has a T shape, and the circuit board main body 31 is located at the middle of the receiving groove 11 on the side end OLED panel 12 and is adjacent to the cathode 23 shared by the plurality of light emitting areas 21 in the side end OLED panel 12. Therefore, the wiring structure of the side-end OLED panel 12 and the circuit board connection portion 32 is: as shown in fig. 2 and 3, after the ends of the plurality of connection lines 33 on the circuit board connection portion 32 are connected to the anodes 22 and the cathodes 23 of the side-end OLED screen body 12, the plurality of connection lines 33 are routed to two sides of the circuit board body portion 31 along the width direction of the circuit board body portion 31, so that the width of the circuit board connection portion 32 and the binding area 4 in the width direction of the receiving groove 11 is further reduced, the lower edge of the circuit board connection portion 32 is effectively prevented from going down beyond the lower edge of the OLED screen body 1, the FPC flexible circuit board 3 is prevented from being too wide, the circuit board connection portion 32 can be completely received in the receiving groove 11, the circuit board connection portion 32 is hidden, the aesthetic property of the OLED screen body 1 is greatly improved, the whole occupied space of the OLED screen body 1 is reduced, and mass production and application in the field of vehicle lamp lighting by using the OLED lighting technology are available. A plurality of connection lines 33 for connecting the circuit board connection portion 32 with the remaining OLED panel body 1 are routed to the same side of the circuit board main body portion 31 in the width direction of the circuit board main body portion 31.
Further, as shown in fig. 4 and 5, each OLED light-emitting unit 2 further includes a conductive grid 24 provided at the outer peripheral boundary of the light-emitting area 21, the conductive grid 24 being made of a low-resistance material, so that the conductive grid 24 has a low resistance and good conductivity, the conductive grid 24 is also electrically connected to the lead-out wire, the light-emitting areas 21 of the respective OLED light-emitting units 2 in the respective OLED panel bodies 1 are independent from each other, and the conductive grids 24 of the respective OLED light-emitting units 2 in the respective OLED panel bodies 1 are insulated from each other. Because the conductive grids 24 have low resistance and are in electrical conduction with the lead-out wires, current conveyed in the lead-out wires is led into the light-emitting area 21 after passing through the conductive grids 24, and the conductive grids 24 surround the outer periphery of the light-emitting area 21, so that the phenomena of gradual light emission and uneven brightness of the light-emitting area 21 can be avoided, the brightness uniformity of the OLED light-emitting units 2 and the uniformity of light emission of a plurality of OLED light-emitting units 2 are greatly improved, the voltage of the OLED screen body 1 can be reduced, and the OLED lighting technology is beneficial to mass production and application in the automobile field. In addition, the lighting control of the plurality of OLED light-emitting units 2 of the plurality of OLED screen bodies 1 is independent control realized by the controller, so that different lighting sequences of the plurality of OLED light-emitting units 2 can be conveniently and easily realized by writing programs in the controller, and the effects and functions which cannot be realized by the traditional LED light source are realized.
Preferably, the conductive grid 24 is a metal grid, and the material of the metal grid is preferably molybdenum (Mo) or aluminum (Al). The conductive grids 24 are formed on the substrate in the OLED panel 1 through a sputtering process and cover the outer peripheral boundary of each light emitting region 21, and the conductive grids 24 are formed into a desired pattern through a photolithography process according to a designed light emitting pattern at a later stage. Insulating gaps are arranged between the conductive grids 24 of the OLED light-emitting units 2, and the conductive grids 24 of the OLED light-emitting units 2 are mutually insulated through the insulating gaps, so that the normal operation of the conductive grids 24 is ensured.
There is now provided a preferred embodiment of an electrode connection structure between matrix-type OLED panels, in which the width direction of the OLED panel 1 is defined as the left-right direction, the length direction of the OLED panel 1 is defined as the up-down direction, the thickness direction of the OLED panel 1 is defined as the front-back direction, the front side of the OLED panel 1 is the front direction, and the back side of the OLED panel 1 is the back direction. Alternatively, in fig. 5, the upper side of the paper surface is the upper direction, the lower side of the paper surface is the lower direction, the left side of the paper surface is the left direction, the right side of the paper surface is the right direction, the front side of the paper surface is the front direction, and the back side of the paper surface is the back direction.
As shown in fig. 1 and 2, the electrode connection structure between the matrix-type OLED panels has two OLED panels 1 and one FPC flexible circuit board 3, the two OLED panels 1 are a first OLED panel 13 located on the left side and a second OLED panel 14 located on the right side, and the second OLED panel 14 forms a side-end OLED panel 12. Three OLED light-emitting units 2 are arranged in each OLED screen body 1, as shown in fig. 4 to 6, the three OLED light-emitting units 2 are sequentially arranged from top to bottom along the length direction of the OLED screen body 1, and therefore the three OLED light-emitting units 2 are arranged in a matrix mode. The three OLED light-emitting units 2 in each OLED panel 1 are respectively defined as a first OLED light-emitting unit 51, a second OLED light-emitting unit 52, and a third OLED light-emitting unit 53; wherein the first OLED light emitting unit 51 has a first light emitting region 61 and a first conductive grid 71 covered at an outer peripheral boundary of the first light emitting region 61, the second OLED light emitting unit 52 has a second light emitting region 62 and a second conductive grid 72 covered at an outer peripheral boundary of the second light emitting region 62, the third OLED light emitting unit 53 has a third light emitting region 63 and a third conductive grid 73 covered at an outer peripheral boundary of the third light emitting region 63, and the first conductive grid 71, the second conductive grid 72 and the third conductive grid 73 are all formed of metal element molybdenum or aluminum through sputtering and photolithography processes. The back of the lower end of each OLED screen 1 is provided with a receiving groove 11 extending left and right along the width direction of the OLED screen 1, the receiving groove 11 penetrates the OLED screen 1 downwards and backwards, and the width direction of the receiving groove 11 is the up-down direction shown in fig. 5. In each OLED panel 1, one cathode 23 shared by the first light-emitting area 61, the second light-emitting area 62 and the third light-emitting area 63, a first anode 81 led out from the first light-emitting area 61, a second anode 82 led out from the second light-emitting area 62 and a third anode 83 led out from the third light-emitting area 63 are all arranged on the back surface of the OLED panel 1 in the fixing groove of the FPC flexible circuit board 3, and the first anode 81, the second anode 82, the cathode 23 and the third anode 83 are sequentially arranged from right to left along the length direction of the containing groove 11.
Each OLED screen body 1 is rectangular sheet, the first boundary distance L1 ∈ of the lowest OLED light-emitting unit 2 adjacent to the accommodating groove 11 from the lower side edge of the OLED screen body 1 adjacent to the electrode is ∈ 6mm, and the second boundary distance L2 ∈ of the OLED light-emitting unit 2 from the left side edge, the right side edge and the upper side edge of the OLED screen body 1 is ∈ 2.5mm, so that the normal operation of the OLED screen body 1 is ensured. The first light-emitting area 61, the second light-emitting area 62 and the third light-emitting area 63 are all rectangular and are sequentially arranged from top to bottom along the length direction of the OLED screen body 1; the first light-emitting region 61 and the second light-emitting region 62 and the third light-emitting region 63 each have a grid gap, and the width l3+ 1mm of the grid gap. The conductive grids 24 in each OLED lighting unit 2 have a portion filled in the grid gaps, and the insulating gaps between the conductive grids 24 of each OLED lighting unit 2 are a portion of the grid gaps.
As shown in fig. 2, the circuit board main body portion 31 of the FPC flexible circuit board 3 extends up and down in the width direction of the housing groove 11 and is located between the second anode 82 and the cathode 23 of the first OLED panel 13 in the left-right direction. The circuit board connecting part 32 of the FPC flexible circuit board 3 is integrated with four wiring lines connected with the first OLED screen 13, which are respectively: a first connection line 91 connected to the first anode 81 in the first OLED screen 13, a second connection line 92 connected to the second anode 82 in the first OLED screen 13, a third connection line 93 connected to the cathode 23 in the first OLED screen 13, and a fourth connection line 94 connected to the third anode 83 in the first OLED screen 13. The circuit board connecting part 32 of the FPC flexible circuit board 3 is further integrated with four wiring lines connected with the second OLED panel 14, which are respectively: a fifth connection line 95 connected to the first anode 81 in the second OLED screen 14, a sixth connection line 96 connected to the second anode 82 in the second OLED screen 14, a seventh connection line 97 connected to the cathode 23 in the second OLED screen 14, and an eighth connection line 98 connected to the third anode 83 in the second OLED screen 14. When wiring, the first connection line 91 and the second connection line 92 run rightward along the width direction of the circuit board main body 31, and the first connection line 91 and the second connection line 92 are sequentially arranged from top to bottom along the width direction of the accommodating groove 11 (i.e., the length direction of the OLED screen body 1); the third connection line 93 and the fourth connection line 94 are routed leftward along the width direction of the circuit board main body portion 31, and the third connection line 93 and the fourth connection line 94 are sequentially arranged from bottom to top along the width direction of the accommodating groove 11 (i.e., the length direction of the OLED screen body 1), the fifth connection line 95, the sixth connection line 96, the seventh connection line 97 and the eighth connection line 98 are all routed rightward along the width direction of the circuit board main body portion 31, and the fifth connection line 95, the sixth connection line 96, the seventh connection line 97 and the eighth connection line 98 are sequentially arranged from bottom to top and are all located at the lower side of the second connection line 92.
In summary, the present invention effectively overcomes the disadvantages of the prior art and has high industrial utility value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. An electrode connection structure between matrix OLED screen bodies, its characterized in that: the LED display panel comprises at least two OLED panel bodies (1) and an FPC flexible circuit board (3) which are arranged side by side, wherein the FPC flexible circuit board (3) comprises a circuit board main body part (31) and circuit board connecting parts (32) which are arranged at the end parts of the circuit board main body part (31) and extend along the arrangement direction of the OLED panel bodies (1), and each OLED panel body (1) is fixed with the circuit board connecting parts (32); the front face of each OLED screen body (1) is provided with at least one OLED light-emitting unit (2), and each OLED light-emitting unit (2) comprises a light-emitting area (21), an electrode and a lead wire connecting the light-emitting area (21) with the electrode; the circuit board connecting part (32) is integrated with a plurality of connecting lines (33) led out from the circuit board main body part (31), and the connecting lines (33) are respectively connected with electrodes of the OLED light-emitting units (2) in the OLED screen bodies (1).
2. The electrode connection structure between the matrix OLED panels of claim 1, wherein: the back of each OLED screen body (1) is provided with a containing groove (11) extending along the length direction of a circuit board connecting part (32), the circuit board connecting part (32) is fixed in the containing groove (11) of each OLED screen body (1), the electrode of each OLED light emitting unit (2) in each OLED screen body (1) is arranged on the back of the OLED screen body (1) exposed from the containing groove (11), and a plurality of connecting lines (33) are arranged side by side along the width direction of the containing groove (11).
3. The electrode connection structure between the matrix OLED panels of claim 2, wherein: the accommodating groove (11) is formed in the outer side edge of the back face of the OLED screen body (1).
4. The electrode connection structure between the matrix OLED panels of claim 2, wherein: the circuit board main body part (31) of the FPC flexible circuit board (3) extends along the width direction of the accommodating groove (11), and the circuit board main body part (31) is arranged at the side end OLED screen body (12) positioned at the side edge of the plurality of OLED screen bodies (1) and is arranged at the middle of the accommodating groove (11) in the side end OLED screen body (12) and is adjacent to the cathode (23) of the side end OLED screen body (12); a plurality of connecting lines (33) for connecting the FPC flexible circuit board (3) with the side-end OLED screen body (12) are respectively routed to two sides of the circuit board main body part (31) along the width direction of the circuit board main body part (31), and a plurality of connecting lines (33) for connecting the FPC flexible circuit board (3) with the rest OLED screen body (1) are routed to the same side of the circuit board main body part (31) along the width direction of the circuit board main body part (31).
5. The electrode connection structure between the matrix OLED panels of claim 1, wherein: the electrodes of the OLED light-emitting units (2) in each OLED screen body (1) comprise an anode (22) and a cathode (23), and each light-emitting area (21) in each OLED screen body (1) shares one cathode (23).
6. The electrode connection structure between the matrix OLED panels of claim 5, wherein: the cathode (23) in each OLED screen body (1) is arranged between two adjacent anodes (22).
7. The electrode connection structure between the matrix OLED panels of claim 1, wherein: the electrodes of the OLED light-emitting units (2) in each OLED screen body (1) are arranged side by side along the arrangement direction of the OLED screen bodies (1).
8. The electrode connection structure between the matrix OLED panels of claim 1, wherein: each OLED light emitting unit (2) in each OLED screen (1) further comprises a conductive grid (24) arranged at the periphery boundary of the light emitting area (21), wherein the conductive grids (24) are made of low-resistance materials and are in conductive connection with the lead-out wires, and the conductive grids (24) of each OLED light emitting unit (2) are mutually insulated.
9. The electrode connection structure between the matrix OLED panels of claim 8, wherein: the conductive grid (24) is made of Mo or Al.
10. The electrode connection structure between the matrix OLED panels of claim 1, wherein: the circuit board connecting parts (32) of the FPC flexible circuit board (3) are fixed on the OLED screen bodies (1) in a hot-press binding mode.
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| US6727519B1 (en) * | 2002-02-08 | 2004-04-27 | Ritdisplay Corporation | Package structure of organic electroluminescence panel |
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| US7028898B2 (en) * | 2002-04-12 | 2006-04-18 | Wintek Corporation | Layout structure of electrode lead wires for organic led display |
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| US6727519B1 (en) * | 2002-02-08 | 2004-04-27 | Ritdisplay Corporation | Package structure of organic electroluminescence panel |
| CN102082239A (en) * | 2010-09-16 | 2011-06-01 | 昆山维信诺显示技术有限公司 | Organic light-emitting diode, display and application thereof |
| CN102444838A (en) * | 2010-10-13 | 2012-05-09 | 乐金显示有限公司 | LED assembly and liquid crystal display device using the same |
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Address after: 201800 No. 767, Yecheng Road, Shanghai, Jiading District Patentee after: HUAYU VISION TECHNOLOGY (SHANGHAI) Co.,Ltd. Address before: 201800 No. 767, Yecheng Road, Shanghai, Jiading District Patentee before: SHANGHAI KOITO AUTOMOTIVE LAMP Co.,Ltd. |