TW550965B - Organic electro luminescence device suitable for assembling function - Google Patents

Abstract

The present invention is related to an organic electro luminescence (EL) device. In particular, the invention is a kind of organic EL device suitable for the function of being assembled to have a larger size. In the invention, the first electrode, light-emitting layer, the second electrode and the isolation sealing-cap are sequentially formed on a substrate surface. At least one channel is drilled on one side of the isolation sealing-cap, in which each channel is capable of being penetrated by a corresponding connection circuit. The end face of the connection circuit can touch the partial surface of the first electrode or the second electrode located inside the isolation sealing-cap. Since the contact between the first electrode or the second electrode and the connection circuit is located inside the isolation sealing-cap, it is not necessary for the side terminals of the first electrode and the second electrode to be exposed outside the isolation sealing-cap. Thus, it is capable of decreasing the areas of the substrate, the first electrode and the second substrate exposed outside the isolation sealing-cap, so as to greatly decrease the associated size of gap between two light emitting devices when they are assembled. Therefore, the invention can be not only suitable for being assembled to have a larger size of display apparatus but also can be effective to raise the resolution quality of light emitting device.

Description

550965 V. Description of the invention (l) The present invention relates to organic electro-excitation light-emitting elements that are organic in assembly functions, especially a kind of display device that can be adapted to large sizes, and also can be used to assemble not only relatively high-quality High-resolution organic electroluminescence light-emitting element (〇fa · vice, hereinafter referred to as “LED element”) that can effectively improve the light-emitting element by ganiC electroluminesceni de, the thickness of the display is thin, and the low power 2 has a large viewing angle and low response time backlight Source and can launch Quan Zheng # j, simple process, impact resistance, without the attention and use of the parties in the board, the advantages of the temple, θ in the new-generation display surface please refer to Figure 1 and 9 mv manufacturing Sectional view and top view, ι are used to form the first electrode 13 of the conventional 0LED element, and are formed on the surface of the first electrical element by methods such as ore formation-at least including 纟 $ f * position sequential steam ore or low ⑴ ng layer ) 'S luminescence; machine-emitting layer-㈤ x 尤 层 ib and the second electrode 17, and then an insulating seal cover 19 of the layer 15 can be erected on the surface of the soil plate vertically through the gasket 16 Extended position. An electrode 13 and a second electrode 17 are respectively connected to controllers 30 and 33 such as a row driver, a column driver, or a central controller via a first connection line 14 or a second connection line. The power supply control of the controllers 30 and 33 determines & which first electrode 13 or which second electrode 17 is injected with electrons or holes, and the electrons and holes are in the light emitting layer 15 again. Recombination is used to excite the constituent materials in the light emitting layer 15 to generate two sources, thereby achieving the purpose of emitting light. In order that the first connection line 14 and the second connection line 18 can contact the relative 550965, the description of the invention (2) the corresponding first electrode 13 and the second electrode 17, it is necessary to connect the first electrode 13 and the second electrode Part of the volume of 17 is exposed outside the isolation sealing cover 19, as shown by al ', and the width is about 1.5mm; and part of the volume of the substrate 11 is exposed outside of the first substrate 13 and the second substrate 17, as shown in a2, the width is approximately 〇5m [n. When the conventional organic electroluminescence light element is intended to be assembled into a larger display device, as shown in FIG. 3, it is mainly a combination of a plurality of 0LED elements, in other words, the substrates u, 21 of two 0LED elements It is close to each other, and there must be a substrate 11, 21, the width between the first electrodes 13, 23, and the first electrode between the second electrodes 17 and 27 that are closest to the two LED elements. The gap a3 ′ formed by the distance 3 between the electrode and the isolation sealing cover 19 is not less than twice (ai + a2 + a). In order for the assembled 0LED display device to have the same two scan lines or two data line intervals a4 (pitch; the distance between the two first electrodes or the two second electrodes), the a4 must be designed to match the The gaps have the same width, which not only wastes the dimensional space during the assembly of the 0LED components, but also seriously damages the high-resolution quality requirements of the 叽 ❿ components. Therefore, how to design a 0LED component that can effectively solve the disadvantages of the conventional structure is not only suitable for assembling into a larger display size function,

Those who can also meet the requirements of high-resolution quality of 0LED components are the key points of this invention.爰 是 X The main purpose of the present invention # is to provide an organic electro-optical light element suitable for assembly functions, which can completely cover the first electrode and the second electrode inside the isolation barrier cover and expose the outside of the isolation seal cover The substrate area is greatly reduced, so as to reduce the gap size of the two 0LED components during assembly.

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It is also possible to reduce the size of the two-to-two interval in the 0LED element, so the secondary object of the present invention can be greatly improved. In the electro-mechanical excitation light element, the area of the bare electrode or the second electrode can be increased by an inch. One of the quality requirements of the first electrode or between two second electrodes. $ Provide a substrate suitable for assembling function, which is exposed outside the isolation sealing cover, and reduce the size of the first frame, which is conducive to assembly. Beneficial to Product Regulations Another object of the present invention is to allow designers to elastically change the area of the first electrode or the second electrode in an electromechanical excitation light element.

In order to make your reviewing members have a better understanding and understanding of the structural features and achieved effects of the present invention, I would like to provide the preferred embodiment diagrams and detailed descriptions, as described below:

First of all, please refer to FIG. 4 and FIG. 5, which are structural cross-sectional views and top-down views of a preferred embodiment of the organic electro-optical light-emitting device of the present invention; as shown in the figure, the present invention is mainly a part of a substrate 41 A first electrode 43 is formed on the surface, and at least one organic emitting layer is formed at a suitable position of the first electrode 43 by evaporation, sputtering, chemical vapor deposition or spray thermal cracking. ) Of the light-emitting layer 45 and the second electrode 47 ′, an isolation sealing cover 49 (or an isolation protective layer) that can cover and protect the organic layer 45 is then erected on a portion of the surface of the substrate 41 vertically extending through the gasket 46. on. The side of the isolation sealing cover 49 may correspond to a part of the surface position of the first electrode 43 or the second electrode 47, for example, a side end of the first electrode 43 or the second electrode 47 is provided with at least a first channel 495 or a first channel. Two channel

Page 7 550965 V. Description of the Invention (4) 497. Penetration through f f4-95 can make-the first connection line 44 with electric conductivity of the electric shirt 43: the two sides of the two connection line 44 can be individually electrically contacted with the power supply function The driver and column of the row determine which system is made, so that the controller 60 can control and communicate with the 497-electrode 43 to supply power. Similarly, the second dagger pile: the second connection line 48 having conductive characteristics penetrates, and the two sides of the 'can be individually electrically contacted with the second electrode 47 and the controller 63, so that the control The device 63 can control and determine which of the first electrodes 47 can be used to perform the power supply function. Of course, no matter whether the upper channel of the first channel 495 or the second channel 497 is provided with a sealant between a connection line 44 or a second line 48, in order to maintain a clean environment in the isolation seal cover 49, And the light-emitting layer 45 in the g-seal cap 49 is protected from the adverse effects of external oxygen or moisture. Because in the 0LED element structure of this embodiment, the first electrode 43 and the second electrode 47 are all covered. In the isolation sealing cover 49, only a small part of the area of the substrate 41 is exposed outside the isolation sealing cover 49, and its width is much smaller than 1.0 mm, as shown in a5, which is about 0.5 mm. Therefore, the present invention can save at least conventional usage. The exposed width a1 of the first electrode of the LED structure is at most about the same as the exposed width a2 of the conventional substrate. & Further, please refer to FIG. 6, which is a top view of the OLED component of the present invention when assembled into a large display size of the driver; as shown in the figure, the substrate 41 exposed outside the isolation sealing cover 49 due to the structure of the present invention Partial volume width a5 is only about 550965 V. Description of the invention (5) 0.5mm, so in the pair of 0LED Yuandu w. 4b 51 closest second electrode 47 pieces ^ ask 5 ^ at the time 'two 0LED components

It will be twice U5 + a), which is much smaller than the gap (gap) a6 of the conventional structure 1. From ~, the gap a3 of the structure is used. Therefore, the two knowledge lines or the two data green doors in the 0LED child piece are in the bucket R. ^ π / Pitch only needs to be equal to the gap a6, which is about 1.0mm, which is much smaller than Xi’an ’s a’nTT ^ LQ 丄 ′, which is 4. ILED 0LED το pieces can have a finer spacing and therefore can not only meet the 0LED elements more ancient "bait Chechen Feibei Village Green

May be more suitable for assembly purposes. J, please refer to FIG. 7, it is too happy — ^ ^. Another embodiment of the present invention is a schematic view of the structure of the present invention, as shown in the figure: In order to avoid the organic matter of the light-emitting layer 45 from being exposed to moisture The influence of external environment such as moisture, oxygen or oxygen reduces its luminous quality or service life. Therefore, a moisture-absorbing layer 75 having a function of absorbing moisture and moisture can be fixed on an inner side wall of one of the isolation sealing covers 49. Also, please refer to FIG. 8, which is a schematic structural cross-sectional view of another embodiment of the present invention; as shown in the figure, in this embodiment, a second isolation sealing cap is mainly provided on the upper surface of the isolation sealing cap 49. 81. One of the insulation seals 81 is provided with a hygroscopic layer 85 on the inner wall, and a plurality of passages for allowing moisture, moisture or oxygen to pass through and be absorbed by the moisture absorption layer 85 are provided on the insulation seal cover. The pores 83 thus prevent the regret that the light-emitting layer 45 may be damaged if the moisture-absorbing layer 85 falls off. Of course, the second isolation sealing cover 81 can be provided with at least one third channel 895, so that the first connection line 44 can penetrate the third channel 895 and the first channel 495 and contact the portion of the first electrode 43 There may be a third sealant 845 between the first connection line 44 and the upper surface of the third channel 895. In addition, a second isolation sealing cover 81 is also provided.

550965 V. Description of the invention (6) There is at least a fourth channel 897, so that the second connection line 48 can penetrate the fourth channel 897 and the second channel 497 and contact a part of the surface of the second electrode 47, and A fourth sealant 885 may exist between the two connecting lines 48 and the upper surface of the fourth channel 897. Please refer to FIG. 9, which is a schematic cross-sectional view of a structure of another embodiment of the present invention. As shown in the figure, in this embodiment, at least one first substrate channel 915 is chiseled on the substrate 91. The first connection line 94 can be penetrated to contact a portion of the surface of the first electrode 43, and a first substrate sealing sealant may exist between the first connection line 94 and a lower surface of the first substrate channel 915. 9 4 5. Of course, the other side of the substrate 91 is also provided with at least one first substrate channel 917 ′ for providing a second connection line gg which can be penetrated and contact a part of the surface of the second electrode 47, and is connected at the second connection. A second substrate sealing sealant 985 may exist between the line 98 and the lower surface of the second substrate channel 917. In this way, the light emitting layer 45 can emit light in two directions of the isolation sealing cover 41 without being affected by the light blocking of the connection line or the sealing sealant. Finally, please refer to FIG. 10, which is a structural cross-sectional view of another embodiment of the present invention; as shown in the figure, its main structure is to form a first electrode 103 on a part of a surface of a substrate 100, and A light emitting layer 105 including at least an organic emitting layer (〇rganic emiuing layer) and a second electrode 107 are sequentially formed at appropriate positions of the first electrode 103, and then an organic layer capable of covering and protecting the organic layer is formed. An isolation sealing cover 109 (or an isolation protection layer) of 105 is erected on a portion of the surface of the substrate 101 extending vertically. In this embodiment, one bottom end of the straight isolation sealing cover 109 can be directly adhered to the surface of the substrate 101 by a gasket 10, and the other end thereof is located at the side end of the first electrode 103.

Page 10 550965 V. Description of the invention (7) There is a conductive channel 1 0 95 on the straight extension position and the surface of the first electrode i 03, and the conductive channel 10 95 or the corresponding side of the isolation sealing cover 10 9 An oblique ore or flat clock method is used to form a surface adhesive line, which is used as a conductive pipe connecting the first electrode 103 to the controller (60). Similarly, the side of the first electrode 107 at the other side and the corresponding isolation sealing cover 〇09 also has a conductive channel and a surface adhesive circuit as the second electrode 〇7 and the controller. (63) Connected conductive pipes.

Because in this embodiment, the component exposed outside the isolation sealing cover i09 has only a part of the area of the substrate 101, and its width is approximately equivalent to the previous implementation ===, the distance will not be large KOmm, so it can be easily To achieve the requirements of effectively improving the high resolution of OUD components, and more suitable for the assembly function. As mentioned above, when the present invention is known, it is particularly suitable for the assembly function which is suitable for the assembly of large-sized display parts. Those who require resolution quality. It is undoubtedly necessary to advance and patent the invention in accordance with the law. However, the above are only the shapes, structures, and characteristics described in this application, which are not intended to limit the scope of implementation of the present invention. They should be included in the application of the present invention. Not only can the device be shown, but it can also effectively enhance the luminescence. Therefore, the present invention is truly novel and should be in accordance with the patent application patent application of our country's patent law. Within the scope of patents and spirits for applying patents and spirits of the present invention.

550965 V. Description of the invention (8) Drawing number comparison description 11 Substrate 13 No. * electrode 14 First connection line 15 Light-emitting layer 16 Seal pad 17 Second electrode 18 Second connection line 19 Isolation seal cover 21 Substrate 23 No. _ _ Electrode 27 Second electrode 30 controller 33 controller 41 substrate 43 first electrode 44 first _ — connecting line 445 first -P · a sealant 45 light-emitting layer 46 gasket 47 second electrode 48 second connection line 485 second sealant 49 Isolation seal cap 495 First channel 497 Second channel 51 Substrate 53 First electrode 57 Second electrode 60 Controller 63 Controller 65 Moisture absorption layer 75 Moisture absorption layer 81 Second insulation seal cover 83 Vent hole 845 Second seal seal Adhesive 85 Moisture absorbing layer 885 Fourth sealant 895 Second channel 897 Fourth channel 91 Substrate 915 Section — Substrate channel 917 Substrate channel 94 Section Line 945 connected to the first sealing substrate 947 of the second fixing point 98 connected line

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550965 Sealant 101 104 106 109 V. Description of the invention (9) 985 Second substrate 103 First electrode 10 5 Moisture absorbing layer 107 Second electrode 1 0 9 5 Conductive channel Substrate Surface Adhesive circuit Side seal Gasket Isolation seal cover

Page 13 550965 Brief description of the diagram. Figure 1: A cross-sectional view of the structure of a conventional organic electroluminescent device. Figure 2: A plan view of a conventional organic electroluminescent device. Figure 3: A conventional organic electroluminescent device. Schematic diagram of the top view during assembly. Figure 4: Structure ~ sectional view of a preferred embodiment of the organic electroluminescent device of the present invention;-Figure 5: Top view of the embodiment of the present invention as shown in Figure 4; Figure 6 : Is a schematic plan view of the organic electroluminescent device according to the present invention when assembled; FIG. 7 is a sectional view of the structure of another embodiment of the organic electroluminescent device according to the present invention; FIG. 8 is an organic electroluminescent device according to the present invention; Structural cross-sectional view of yet another embodiment of the device; FIG. 9 is a structural cross-sectional view of another embodiment of the organic electro-optical light-emitting device of the present invention; and FIG. Its structural cross-section.

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Claims (1)

550965 丄 · An organic electroluminescent device suitable for assembling function, its main structure includes: a substrate; at least one first electrode formed on the surface of the substrate, and at least one surface of the first electrode is sequentially provided with at least one light Layer and second electrode; at least one isolation sealing cover provided on the surface of the substrate to cover and protect the light-emitting layer, at least one first channel is provided on one side of the isolation sealing cover; and At least one first connection line that can pass through the first channel and contact the surface of the first electrode portion. 2. The organic electro-optic light-emitting element according to item 1 of the scope of the patent application, wherein a sealing sealant having a function of isolation is provided between the upper surface of the first channel and the first connection line. 3. The organic electroluminescent device described in item 1 of the scope of the patent application, in which the first electrode system can be entirely covered in an isolation sealing cover. 4 · The organic electro-optic light-emitting element according to the first patent application scope, wherein the bottom end of the isolation sealing cover is provided with at least one gasket, so that the isolation sealing cover can be erected on a part of the surface of the substrate and used for Cover and protect the light-emitting layer. 5 · If the organic electro-optic light-emitting device described in item 1 of the patent application scope further includes: at least one second channel is provided on the other side of the isolation sealing cover; and at least one can pass through the second channel and contact A second connection line on the surface of the second electrode portion, and the upper surface of the second channel is connected to the second 550965 '~ ——---------------- 6. Scope of patent application There is a sealant with isolation function between the lines. 6 · The organic electro-optical light-emitting device according to item 5 of the scope of patent application, wherein the first connection line and the second connection line can be individually connected to a controller corresponding to the same. 7 · The organic electro-optic light-emitting device according to item 1 of the scope of the patent application, wherein the width of the surface of the substrate portion not covered by the vertical extension of the isolation sealing cover is not more than 1.0 mm. 8. The organic electro-optic light-emitting device according to item 1 of the scope of the patent application, wherein at least one moisture-absorbing layer is provided on an inner wall of one of the isolation sealing covers. 9 · The organic electro-optic light-emitting element described in item 1 of the scope of the patent application may further include a second isolation sealing cap fixed on the upper surface of the isolation sealing cap, and a third channel is provided on one side of the second isolation sealing cap. As a result, the first connection line can penetrate the third channel and the first channel of the isolation sealing cover to contact a portion of the surface of the first electrode, and at least one moisture-absorbing layer is provided on an inner wall of one of the second isolation sealing covers. I 〇 The organic electro-optical light-emitting element according to item 9 of the scope of the patent application, wherein the isolation sealing cover is provided with at least one vent hole through which the substance can pass in and out. II. The organic electro-optic light-emitting device according to item 9 of the scope of the patent application, wherein a third sealing sealant with an isolation function is provided between the upper surface of the third channel and the first connection line. 1 2 · The organic electro-optic light-emitting element according to item 9 of the scope of the patent application, wherein the other side of the second isolation sealing cover is provided with at least a fourth channel, so that the second connection line can penetrate the fourth channel and Isolation seal Page 16 550965 6. Scope of patent application The first channel contacts a part of the surface of the second electrode, and a fourth sealant with an isolation function is provided between the upper surface of the fourth channel and the second connection line. 1 3 · An organic electro-optical light-emitting element suitable for assembly functions, the main structure of which includes: a substrate in which at least one first substrate channel is penetrated; at least one first substrate channel formed on the surface of the substrate; An electrode, and at least one light-emitting layer and a second electrode are sequentially provided on a part of the surface of the first electrode; at least one isolation sealing cover provided on the surface of the substrate to cover and protect the light-emitting layer; and at least one can pass through the first A substrate channel is in contact with the first connection line on the surface of the first electrode portion. 14 · The organic electro-optic light-emitting device according to item 13 of the scope of patent application, wherein a first substrate sealing sealant with an isolation function is provided between the lower surface of the first substrate channel and the first connection line. 1 5 · The organic electro-optical light-emitting device according to item 3 of the patent application scope, wherein the other side of the substrate is provided with at least a second substrate channel, and the second substrate channel can provide a second connection line to penetrate and A part of the surface contacting the second electrode is provided with a second substrate sealing sealant with an isolation function between the lower surface of the second substrate channel and the second connection line. 16 · The organic electro-optical light-emitting device according to item 13 of the scope of patent application, wherein one end of the first connection line is fixed on a part of the surface of the first electrode by a fixing point. 1 7 · According to the organic electroluminescent device described in item 丨 3 of the scope of patent application, 550965 At least one moisture-absorbing layer is disposed on an inner wall of one of the isolation sealing caps. 18 · An organic electroluminescent device suitable for assembly functions, the main structure of which includes: a substrate; at least one first electrode formed on the surface of the substrate, and at least one light emitting portion of the surface of the first electrode is sequentially provided with at least one light Layer and second electrode; at least one isolation sealing cover provided on the substrate surface 4 for covering and protecting the light-emitting layer, a bottom end of one side of the isolation sealing cover is vertically extended at one end of the first electrode In a directional position, and there is a conductive channel with a side end surface of the first electrode; and at least one surface adhesive line that can fill the conductive channel and contact the side end of the first electrode. 19 · The organic electro-optical light-emitting device as described in item 18 of the scope of patent application, wherein the side of the isolation sealing cover may also be provided with the surface adhesive circuit. 20 · The organic electro-optic light-emitting element according to item 18 of the scope of patent application, further comprising: the other side of the isolation sealing cover. The bottom end is provided in a vertical extension direction of one end of the second electrode Position, and there is a conductive channel with the side end surface of the second electrode; and at least one surface adhesive line that can fill the conductive channel and contact the side end of the second electrode. 21 · The organic electro-optic light-emitting device according to item M of the scope of the patent application, wherein the width of the surface of the substrate portion not covered by the multiplied extension position of the isolation sealing cover is not more than 1 ().