CN103779378A - Organic light-emitting display - Google Patents
Organic light-emitting display Download PDFInfo
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- CN103779378A CN103779378A CN201210415302.6A CN201210415302A CN103779378A CN 103779378 A CN103779378 A CN 103779378A CN 201210415302 A CN201210415302 A CN 201210415302A CN 103779378 A CN103779378 A CN 103779378A
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Abstract
Provided is an organic light-emitting display which comprises an organic light-emitting display panel, a composite material layer disposed on the back surface of the organic light-emitting display panel, and a peripheral circuit board and a control circuit board disposed on a side of the composite material layer. The composite material layer comprises a first insulating layer, a conductive layer, and a second insulating layer. The second insulating layer comprises multiple first and second openings in order to expose the conductive layer. The peripheral circuit board is electrically connected with the organic light-emitting display panel and the conductive layer exposed out of the first openings. The control circuit board is electrically connected with the conductive layer exposed out of the second openings. In the organic light-emitting display, theperipheral circuit board is electrically connected with and the control circuit board via the composite material layer such that a wire electric connection manner is simplified and cost is saved. In addition, the configuration space of an organic light-emitting diode panel module group is saved in order to facilitate assembly.
Description
Technical field
The present invention relates to a kind of organic light emitting display.
Background technology
Organic Light Emitting Diode (organic light-emitting diode, OLED) display, is called again organic electric lighting displaying device (organic electroluminesence display, OELD) or organic light emitting display.
Traditional liquid crystal display (liquid crystal display, LCD) be to utilize voltage to drive the rotation degree of the liquid crystal molecule in display panels, can be by the amount of sub-pixel out of the ordinary to adjust the light that sent by backlight, thus realize the object of show image.Organic light emitting display is to utilize for example thin-film transistor of driving element (TFT) of organic electroluminescence display panel to control by the size of current (referring to Fig. 1) of organic illuminating element in each sub-pixel, to reach the luminous intensity of controlling organic illuminating element in each sub-pixel, and then reach the object of show image.
Because organic illuminating element is by current drives, therefore resistance drop (IR drop, voltage drop) in organic electroluminescence display panel viewing area, also claims voltage-drop, phenomenon will be especially serious.Resistance drop phenomenon can cause the value of the supply voltage (OVdd) of sub-pixel in viewing area to change with position is different.In general, the OVdd value in the region of inputting near electric current in viewing area is higher, lower by the OVdd value in electric current input region far away, and this can cause the uniformity variation of display frame.
At present, the method for improving the problems referred to above is mainly to utilize bilateral or surrounding power supply, shortens the each viewing area of organic electroluminescence display panel and the distance apart from electric current input area, to alleviate the phenomenon of resistance drop as far as possible.Referring to Fig. 2, Fig. 2 is the schematic plan of existing organic electroluminescence display panel 100.But this produces again new problem, as shown in Figure 2, because the more wire 110 of essential use in modular design, respectively electric current is delivered to fifty-fifty to the surrounding peripheral circuit plate 120 of organic electroluminescence display panel 100 and the control circuit board 130 of central authorities.Meanwhile, for by the electric current of outside input via each wire the surrounding to organic electroluminescence display panel 100, must first the electric current of input be tapped into each wire 110 via power panel 140.So, except having increased the cost of wire 110 and power panel 140, also make the configuration of organic electroluminescence display panel module space and encapsulation become comparatively difficulty more.
Summary of the invention
The object of the invention is to, a kind of organic light emitting display is provided, it is simple in structure, is conducive to reduce the phenomenon of resistance drop, thereby improves the quality of display frame.
It is to adopt following technical scheme to realize that the present invention solves its technical problem.
A kind of organic light emitting display, it comprises organic electroluminescence display panel, composite layer, peripheral circuit plate and control circuit board.Organic electroluminescence display panel have display surface and with the opposing back side of display surface, and there is viewing area and be positioned at the non-display area of viewing area surrounding.Composite layer is arranged at the back side of organic electroluminescence display panel, comprises the first insulating barrier, conductive layer and the second insulating barrier that set gradually overleaf, and the second insulating barrier has multiple the first openings and multiple the second opening, to expose conductive layer.Peripheral circuit plate is arranged at the second insulating barrier one side of composite layer, is positioned at non-display area, and the conductive layer exposing with organic electroluminescence display panel and from multiple the first openings is respectively electrically connected; And control circuit board, be arranged at the second insulating barrier one side of composite layer, be positioned at viewing area, and be electrically connected with the conductive layer exposing from multiple the second openings.
In a preferred embodiment of the invention, above-mentioned conductive is graphite, and the first insulating barrier and the second insulating layer material are polyethylene terephthalate (PET).
In a preferred embodiment of the invention, above-mentioned peripheral circuit plate is electrically connected to conductive layer by the first conducting foam, and control circuit board is electrically connected to conductive layer by the second conducting foam.
In a preferred embodiment of the invention, above-mentioned organic light emitting display also comprises back of the body frame, be arranged between peripheral circuit plate and control circuit board and composite layer, back of the body frame has multiple through holes, and the first conducting foam and the second conducting foam are arranged in multiple through holes.
In a preferred embodiment of the invention, above-mentioned composite layer also comprises conduction articulamentum, be arranged at the second insulating barrier and insert multiple the first openings and multiple the second opening is electrically connected with conductive layer, peripheral circuit plate is electrically connected with conductive layer by conduction articulamentum respectively with control circuit board.
In a preferred embodiment of the invention, above-mentioned organic light emitting display also comprises metal backing, be arranged at peripheral circuit plate and the control circuit board side away from organic electroluminescence display panel, peripheral circuit plate is electrically connected with metal backing by the 3rd conducting foam, and peripheral circuit plate is electrically connected with metal backing by the 4th conducting foam.
In a preferred embodiment of the invention, above-mentioned control panel comprises connector, for being connected with external power source.
In a preferred embodiment of the invention, above-mentioned peripheral circuit plate comprises and covers brilliant film, and peripheral circuit plate is electrically connected with organic LED panel by covering brilliant film.
In a preferred embodiment of the invention, above-mentioned organic electroluminescence display panel comprises organic LED panel and glass substrate, and glass substrate is between organic diode panel and composite layer.
In a preferred embodiment of the invention, above-mentioned organic light emitting display also comprises Polarizer, is arranged on the display surface of organic electroluminescence display panel.
Beneficial effect of the present invention is, organic light emitting display of the present invention adopts composite layer electrical connection control circuit board and the peripheral circuit plate with heat sinking function, simplify the electric connection mode of wire, obviously reduce resistance drop phenomenon, be conducive to save cost, also saved the block configuration space of organic light emitting display, be convenient to assembling and then the display quality of improving picture simultaneously.
Accompanying drawing explanation
Fig. 1 is the drive circuit schematic diagram of existing organic electroluminescence display panel.
Fig. 2 is the plan structure schematic diagram of existing organic electroluminescence display panel.
Fig. 3 is the schematic top plan view of the organic light emitting display of the embodiment of the present invention.
Fig. 4 is the generalized section in IV region shown in Fig. 3.
Fig. 5 is the generalized section in V region shown in Fig. 3.
Fig. 6 is the schematic top plan view of the composite layer of the embodiment of the present invention.
Fig. 7 is the partial cutaway schematic that is connected of peripheral circuit plate with the composite layer of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is known to complete description.In the time that an element or device are connected to another element or device, connected mode not only comprises direct connected mode, also comprises the mode indirectly connecting via other elements or device.
Fig. 3 is the plan structure schematic diagram of the organic light emitting display of the embodiment of the present invention.Referring to Fig. 3, in the present embodiment, organic light emitting display 300 comprises organic electroluminescence display panel 310, composite layer 320, peripheral circuit plate 330 and control circuit board 340.It should be noted that, for better schematic components, part outer layer element is not drawn, and organic electroluminescence display panel 310 is positioned at the below of composite layer 320, peripheral circuit plate 330 and control circuit board 340 because of it, so also not shown in Fig. 3.Fig. 4 is the generalized section in IV region shown in Fig. 3, and Fig. 5 is the cross-sectional schematic in V region shown in Fig. 3.Please also refer to Fig. 3, Fig. 4 and Fig. 5, in the present embodiment, organic electroluminescence display panel 310 have display surface 311 and with the opposing back side 312 of display surface 311, and there is the non-display area (not mark) that is positioned at central viewing area (not mark) and is positioned at viewing area surrounding.Organic electroluminescence display panel 310 comprises organic LED panel 313 and glass substrate 314, in the present embodiment, display surface 311 is surfaces for organic LED panel 313, and the back side 312 is surfaces for the opposing organic LED panel 313 of glass substrate 314.
Hold above-mentionedly, peripheral circuit plate 330 is arranged at the second insulating barrier 323 1 sides of composite layer 320, is positioned at non-display area.Control circuit board 340 is also arranged at the second insulating barrier 323 1 sides of composite layer 320, but is positioned at viewing area.In other words, peripheral circuit plate 330 arranges around control circuit board 340.Peripheral circuit plate 330 is electrically connected with the conductive layer 322 exposing from multiple the first openings 324, is also electrically connected with organic LED panel 310.In the present embodiment, peripheral circuit plate 330 is electrically connected with conductive layer 322 by the first conducting foam 362.Peripheral circuit plate 330 also comprises and covers brilliant film 331, and is electrically connected with organic LED panel 310 by covering brilliant film 331.Control circuit board 340 is electrically connected with the conductive layer 322 exposing from multiple the second openings 325.In the present embodiment, control circuit board 340 is electrically connected with conductive layer 322 by the second conducting foam 364.In the present embodiment, between peripheral circuit plate 330 and control circuit board 340 and composite layer 320, be provided with back of the body frame 350.Back of the body frame 350 has multiple through holes 352, and through hole 352 is corresponding with the first opening 324 and second opening 325 of the second insulating barrier 232 respectively, thereby the first conducting foam 362 and the second conducting foam 364 are arranged in multiple through holes 352.
In addition, composite layer 320 also can comprise pattern conductive articulamentum 328, pattern conductive articulamentum 328 be arranged at the second insulating barrier 323 and insert multiple the first openings 324 and multiple the second opening 325 in be electrically connected with conductive layer 322.In the present embodiment, peripheral circuit plate 330 is connected with conduction articulamentum 328 with the second conducting foam 364 by the first conducting foam 362 respectively with control circuit board 340, is electrically connected with conductive layer 322 thereby realize.Conduction articulamentum 328 for example can be for having the metal forming of conducting function, and for example Copper Foil or aluminium foil, insert the first opening 324 and the second opening 325 and can accept electric current inflow, prevents leakage or the diffusion of for example graphite of material of conductive layer 322 simultaneously.In addition, as shown in Figure 7, the peripheral circuit plate that Fig. 7 is the embodiment of the present invention and the generalized section that is connected of composite wood layer can also arrange for example Bu Tong district of contact pins 332 on peripheral circuit plate 330, in order to contact and to be electrically connected with the first conducting foam 362, flow into accept electric current.
Hold above-mentionedly, organic light emitting display 300 also comprises metal backing 370.Metal backing 370 is arranged at peripheral circuit plate 330 and the side of control circuit board 340 away from organic electroluminescence display panel 310.In the present embodiment, peripheral circuit plate 330 is electrically connected with metal backing 370 by the 3rd conducting foam 366, and peripheral circuit plate 330 is electrically connected with metal backing 370 by the 4th conducting foam 368.In addition, on control circuit board 340, connector 380 can be set, in order to connect external power source (not shown).Correspondingly, metal backing 370 is provided with opening 372, so that connector 380 is realized and being connected of external power source easily.
Be worth one, in the present embodiment, organic electroluminescence display panel 310 also comprises Polarizer 392, and Polarizer 392 is arranged on the display surface 311 of organic electroluminescence display panel 310.In addition, the also front common element such as frame 394 constituting organic luminous display such as grade of organic electroluminescence display panel 310, it is well known, will not describe in detail at this.
Please continue to refer to Fig. 4 and Fig. 5, from the electric current A of external power source, the electric current flowing out from control circuit board 340 flows into conductive layer 322 through the second conducting foam 364, conduction articulamentum 328; The circuit flowing in conductive layer 322 continues to flow in peripheral circuit plate 330, then flow into organic electroluminescence display panel 310 inside (being in organic LED panel 313) via covering brilliant film 331 through conduction articulamentum 328, the first conducting foam 362.Otherwise the electric current B flowing out from organic electroluminescence display panel 310 flows to metal backing 370 via covering brilliant film 331, peripheral circuit plate 330, the 3rd conducting foam 366 again.Therefore, the 3rd conducting foam 366 that metal backing 370 is connected with peripheral circuit plate 330 also has the metal backing of allowing 370 ground connection simultaneously, reaches the effect that prevents Electromagnetic Interference.The 4th conducting foam 368 is set between control circuit board 340 and metal backing 370, and the electric current B of above-mentioned inflow metal backing 370, flows back to control circuit board 340 through the 4th conducting foam 368, again to form loop.
Organic light emitting display 300, by adopting composite layer electrical connection control circuit board and peripheral circuit plate, has been avoided numerous and diverse side connecting conductor formula, has reduced resistance drop, thereby has been conducive to save cost, improves the display quality of picture.Also saved the block configuration space of organic light emitting display, be convenient to assembling simultaneously.In addition, organic electroluminescence display panel is current drives, therefore can produce heat, and for example graphite linings of the conductive layer in composite layer also has good radiating effect simultaneously.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an organic light emitting display, is characterized in that, it comprises:
Organic electroluminescence display panel, its have display surface and with the opposing back side of display surface, and there is viewing area and be positioned at the non-display area of this viewing area surrounding;
Composite layer, be arranged at this back side of this organic electroluminescence display panel, this composite layer comprises the first insulating barrier, conductive layer and the second insulating barrier that are successively set on this back side, and this second insulating barrier has multiple the first openings and multiple the second opening, to expose this conductive layer;
Peripheral circuit plate, is arranged at this second insulating barrier one side of this composite layer, be positioned at this non-display area, and this conductive layer exposing with this organic electroluminescence display panel and from the plurality of the first opening is respectively electrically connected; And
Control circuit board, is arranged at this second insulating barrier one side of this composite layer, is positioned at this viewing area, and is electrically connected with this conductive layer exposing from the plurality of the second opening.
2. organic light emitting display as claimed in claim 1, is characterized in that, this conductive is graphite, and this first insulating barrier and this second insulating layer material are polyethylene terephthalate.
3. organic light emitting display as claimed in claim 2, is characterized in that, this peripheral circuit plate is electrically connected to this conductive layer by the first conducting foam, and this control circuit board is electrically connected to this conductive layer by the second conducting foam.
4. organic light emitting display as claimed in claim 3, it is characterized in that, this organic light emitting display also comprises back of the body frame, be arranged between this peripheral circuit plate and this control circuit board and this composite layer, this back of the body frame has multiple through holes, and this first conducting foam and this second conducting foam are arranged in the plurality of through hole.
5. organic light emitting display as claimed in claim 1, it is characterized in that, this composite layer also comprises conduction articulamentum, be arranged at this second insulating barrier and insert the plurality of the first opening and the plurality of the second opening is electrically connected with this conductive layer, this peripheral circuit plate is electrically connected with this conductive layer by this conduction articulamentum respectively with this control circuit board.
6. organic light emitting display as claimed in claim 1, it is characterized in that, this organic light emitting display also comprises metal backing, be arranged at this peripheral circuit plate and this control circuit board side away from this organic electroluminescence display panel, this peripheral circuit plate is electrically connected with this metal backing by the 3rd conducting foam, and this peripheral circuit plate is electrically connected with this metal backing by the 4th conducting foam.
7. organic light emitting display as claimed in claim 1, is characterized in that, this control panel comprises connector, for being connected with external power source.
8. organic light emitting display as claimed in claim 1, is characterized in that, this peripheral circuit plate comprises and cover brilliant film, and this peripheral circuit plate is covered brilliant film and is electrically connected with this organic LED panel by this.
9. organic light emitting display as claimed in claim 1, is characterized in that: this organic electroluminescence display panel comprises organic LED panel and glass substrate, and this glass substrate is between this organic diode panel and this composite layer.
10. organic light emitting display as claimed in claim 1, is characterized in that, this organic light emitting display also comprises Polarizer, is arranged on this display surface of this organic electroluminescence display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210415302.6A CN103779378A (en) | 2012-10-25 | 2012-10-25 | Organic light-emitting display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210415302.6A CN103779378A (en) | 2012-10-25 | 2012-10-25 | Organic light-emitting display |
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| Publication Number | Publication Date |
|---|---|
| CN103779378A true CN103779378A (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210415302.6A Pending CN103779378A (en) | 2012-10-25 | 2012-10-25 | Organic light-emitting display |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720023A (en) * | 2015-11-20 | 2016-06-29 | 友达光电股份有限公司 | Display and thermoelectric conduction element thereof |
| WO2017128777A1 (en) * | 2016-01-29 | 2017-08-03 | 京东方科技集团股份有限公司 | Backplane assembly and display apparatus having backplane assembly |
| CN107093606A (en) * | 2017-03-31 | 2017-08-25 | 京东方科技集团股份有限公司 | A kind of preparation method of display panel, display device and display panel |
| CN107886843A (en) * | 2017-12-19 | 2018-04-06 | 惠科股份有限公司 | Display device and its display panel |
-
2012
- 2012-10-25 CN CN201210415302.6A patent/CN103779378A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720023A (en) * | 2015-11-20 | 2016-06-29 | 友达光电股份有限公司 | Display and thermoelectric conduction element thereof |
| CN105720023B (en) * | 2015-11-20 | 2018-04-24 | 友达光电股份有限公司 | Display and thermoelectric conduction element thereof |
| WO2017128777A1 (en) * | 2016-01-29 | 2017-08-03 | 京东方科技集团股份有限公司 | Backplane assembly and display apparatus having backplane assembly |
| US10509247B2 (en) | 2016-01-29 | 2019-12-17 | Boe Technology Group Co., Ltd. | Back panel assembly and display device having the same |
| CN107093606A (en) * | 2017-03-31 | 2017-08-25 | 京东方科技集团股份有限公司 | A kind of preparation method of display panel, display device and display panel |
| WO2018176780A1 (en) * | 2017-03-31 | 2018-10-04 | 京东方科技集团股份有限公司 | Display panel, display device, and method for manufacturing display panel |
| CN107093606B (en) * | 2017-03-31 | 2019-08-16 | 京东方科技集团股份有限公司 | A kind of production method of display panel, display device and display panel |
| US11222939B2 (en) | 2017-03-31 | 2022-01-11 | Boe Technology Group Co., Ltd. | Display panel, display device and method for manufacturing display panel |
| CN107886843A (en) * | 2017-12-19 | 2018-04-06 | 惠科股份有限公司 | Display device and its display panel |
| CN107886843B (en) * | 2017-12-19 | 2024-04-02 | 惠科股份有限公司 | Display device and display panel thereof |
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Application publication date: 20140507 |