TWI290381B - Organic electroluminescent double sided display device - Google Patents

Abstract

This invention provides an organic electroluminescent double sided display device, which is manufactured by disposing an electrode layer and an organic light-emitting layer sequentially onto a main substrate and a secondary substrate; injecting a conductive resin material onto the main substrate, in which the conductive resin material is higher than the organic light-emitting layer and an encapsulating resin is disposed on the sides of the main substrate; and finally laminating and encapsulating the two substrates, in which the encapsulating resin can encapsulate the circuit on the substrate to prevent moisture from entering and a nontransparent moisture absorbing drying material is used to fill the internal space between the main substrate and the secondary substrate so that the moisture absorbing drying material can absorb moisture and a mutual interference from the backside organic light-emitting source can be prevented.

Description

1290381

TECHNICAL FIELD OF THE INVENTION The present invention relates to the fabrication of organic light-emitting elements, and more particularly to a method and apparatus for producing a double-sided display of organic light-emitting elements. [Prior Art] Origin "organic light emitting diode display panel (〇rganic Light-Emitting Diode ^ 0LED), also known as organic electroluminescent display (〇_rg, niC Electroluminescence, 0EL), has other flat display: device / technology A new generation of technologies that are not easily accessible, such as high-brightness and clear Wang Cai images and high agility.

The basic structure of the 0LED is composed of a thin and transparent semiconductor indium tin oxide (I T0) for the positive electrode and the metal cathode as a sandwich. The organic material layer includes a hole transport layer (HTL), and the light is emitted. Layer (EL), and electron transport layer (ETL). When the battery provides the proper voltage volt characteristics, the charge injected into the anode and the cathode can be combined to illuminate the luminescent layer to excite the organic material to produce light. The structure of the organic layer is designed to make the positive and negative electrodes The device fully plays the key to the luminous efficacy.

0LED features self-illumination, no backlight module, low voltage drive (less than 10 Vol ts) and power saving, high energy efficiency (16 lm/w), high brightness (up to 100, 〇〇〇Cd/m2 Above), short response time (less than 2 # s), high contrast, wide viewing angle (close to 180 ◦), light weight, thin thickness, simple structure, low manufacturing cost, flexibility (plastic substrate) and full color. Therefore, OLEDs have a wide range of applications and have great market potential in displays or lighting equipment. Such as mobile phones, game consoles, audio panels, digital cameras, personal digital assistants (PDAs), car navigation systems,

Page 6 1290381 V. #明说明(2) Electronic check, capital a ^ & middle, machine appliances, notebook computers, monitors, TVs, etc. Popularization, and call as an example. In recent years, the number of mobile phone usage is very high, and the display screen of the mobile phone is displayed from the mobile phone 2:f to the current dynamic picture file*, the current city The double display of the stacked stack: the atmosphere ^ from the original single display screen to the indexable (0LED) as the indicator can be used to display the panel, two sets of dual display screens, two display The dual display screen is shown as "Figure 1" and is the main substrate A and - owed. The second structure and the figure are shown in the figure; the main system has the upper and lower sets of cathode circuits C and ^ plates, and two sets are respectively arranged on the two substrates A and B.

, F '-drying material, road D, D1, an organic illuminant E, J, coated with a package rubber I by using -H two substrates β, β, and finally bonded to the encapsulant 1, J, Complete the sealing of the main substrate A and the sub-base, the board two B:=K, [the back side is coated with double-sided adhesive tape to make it emit light source, and the energy can be used; the second-body's use of the main and sub-substrate A and Β respectively It is necessary to set a drive circuit ν, 〇 on the main substrate = screen; when driving the display screen, 帷, the earth plate is set. The dual-display screen combined with the cathode circuit c and the seven-stage Yangyang-style lightning type requires two sets of cover Κ, L, a double-sided adhesive, two pieces of dry material G, Η, two pieces of package, The assembly is trapped / and is too ^ (four) 'Therefore, there will be problems of thickness and high cost. The practice of the cathode, ^ ^ ^ the problem 'currently proposed by the industry - a variety of schematic diagram, as shown in Figure = 2; Figure 2 mainly contains an organic light-emitting diode 1290381 five, invention description (3) transparent cathode 2 a money circuit 3, a flexible circuit board 4, a transparent package cover 5, a transparent substrate 6, a screen illumination direction 7, a main screen illumination = 7A, a screen mask 8, a main screen mask 8A In this way, the concept of a transparent electrode is used, and the organic light-emitting diode is used as a point light source, and the required light-emitting surface is masked to achieve a double-sided display effect. Although the structure of the above transparent cathode method can make the thickness thinner (only one soil plate is needed), the material is saved (only one substrate, one process, one circuit is used, and the display surface belongs to the same light-emitting position of the substrate, because 1ϊ ί ί ί constraints, the 35 method moves arbitrarily; and the light and the title of the main screen, such as the =ί line will interfere with each other in the structure, there will be an angle, the direction of the black line 9 arrow; the other transparent The light transmission of the cathode 2 is used. The application of the falling product must meet the same standard as the glass to make the invention. The main purpose of the invention is to solve the above-mentioned deficiency, avoiding 3=:;: It provides an organic light-emitting double-sided display element: Therefore, the thickness and cost can be reduced, and the assembly is simple. The use of the circuit '% The secondary purpose of the present invention is to form the main substrate and the sub-substrate, by the package The porpoise is only the opposite of each other. The purpose of this is to use a non-transparent thirst y%# to clean the moisture, and to block the moisture from the back.

Page 8 "Where the package is made, the sealing process is reduced.転 転 I転1290381 V. Invention description (4) i: phase: interference, prevention of light interference with each other, and the invention moves the soil plate, the light-emitting position of the display surface does not overlap, so it can be arbitrary 】明如; The method of applying the invention and the technology within $, now with the schema - one: see "3, 4", the system, the organic machine board and the sub-substrate line production of the invention, As shown in the figure; double: the member pre-i 2; and:: the substrate 20 is attached to the main substrate 10 and the sub-substrate 20 乍 =::; r21, and the commonly used data is arranged into an active area 14 The scan lines U, 23 are used, and the end of the shape 23 is right H, and the data lines 12, 22 and the scan lines 13, 130, ί3 (Γ;, the turn-on points 12〇, 220, and the scan line are turned on) Point which will scan the line 1 3, 2 2 8 + γ main substrate 10 book Xin (Pixena # open main system can be driven

Pixe", such as [can be used to avoid scanning to the secondary substrate 2 〇 pixels (= way conduction point u ◦ and scan = = line spacing can be enlarged, so as to reduce = sleep please refer to "z ^ nmv double-sided display The 侔 侔 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The electrode layers 15, 25, -6, 26 and - the cathode layer Β, 29 are sequentially disposed, and are placed on the main substrate 1

1290381 Brief description of the schema [Description of the schema] The first diagram is the conventional double display screen structure. The second diagram is the conclusion of the conventional transparent cathode method. The third embodiment of the present invention is not intended to be an organic light-emitting double-sided display element. Figure. Description of the production of the %-piece motherboard circuit. Figure 4 is an organic light-emitting double-sided display of the present invention. The schematic diagram of the production of the secondary board is shown in Fig. 5. The organic light-emitting double-sided of the present invention is a schematic diagram (1) of the organic light-emitting double-sided member of the present invention. [Illustration of the label of the figure], diagram of the production of the parts (2). [study part]

Main substrate A Cathode circuit C, C1 Organic illuminant E, F Package rubber I, j Double-sided adhesive Μ Organic light-emitting diode 1 #刻线3 Transparent package cover 5 times Screen illumination direction 7 times Screen visor 8 Black solid line 9 ---" Package cover transparent d soft electric through the main screen - main screen: , D1, 0

To 7 A 8A

[Part of the Invention] Main substrate 10 alignment mark 11, 2 i

Page 12 1290381 Picture description simple data line 1 2, 2 2 Actuation area 1 4, 2 4 Scan line conduction point 1 3 0, 2 3 0 Electrode layer 1 5, 2 5 Conductive adhesive material 1 7 Cathode layer 1 9, 2 9 moisture-absorbing dry material 3 0 scanning line 1 3, 2 3 data line conduction point 1 2 0, 2 2 0 organic light-emitting layer 1 6, 2 6 package adhesive 18 sub-substrate 20 drive circuit 40

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Claims (1)

Revised 'revised' allowance for 92119767 J#9-_6. Patent application scope 1. An organic light-emitting double-sided display element comprising: a main substrate, the main substrate is provided with an electrode layer, an organic light-emitting layer and a cathode layer; a primary substrate, the secondary substrate Providing an electrode layer, an organic light-emitting layer and a cathode layer; a conductive adhesive material disposed between the main substrate and the sub-substrate, and connecting the electrode layer of the main substrate and the electrode of the sub-substrate a sealing material, the encapsulating material is bonded to the main substrate and the sub-substrate, and a hygroscopic drying material, and the hygroscopic drying material is applied between the main substrate and the sub-substrate. 2. If applying for a dedicated display component, wherein the conductive adhesive material is used as a single driving power 3, such as applying for a dedicated display component 4, a display component 5, a display component 6, and a display component, wherein the application is specific, wherein If the application is specific, the application is specific, and the main substrate of the profit range is the guide path to drive the range of the conductive adhesive range. The main substrate is in the range of the package. The range of the package is the first. The first material is the first. And the second material is coated on the screen substrate of the silver substrate according to the item of the first substrate, and the one of the conductive materials described in the second item is One of the ways to describe one is to provide a kind of organic light-emitting double-sided driving circuit, and the use of the substrate is displayed by the substrate. An organic light-emitting double-sided 〇 organic light-emitting double-sided package cover is formed. The organic light-emitting double-sided layer is placed on the main substrate. The organic light-emitting double-sided layer is placed on the main substrate. Page 14