TW201517687A - AC OLED mesh - Google Patents

Abstract

An AC organic light emitting diode mesh includes an AC power supply, and a light emitting diode group, wherein both end of the AC power supply connect to both end of the light emitting diode group, and the light emitting diode group contains one or at least two paralleled connected at least one light emitting diode.

Description

AC-driven organic electroluminescent diode network

The present disclosure relates to an AC-driven organic electroluminescent diode network, and more particularly to an AC-driven organic electroluminescent diode network.

The technical features of the Organic Light Emitting Diode (OLED) include: self-illumination, DC low voltage driving (10V or less), high luminous efficiency, low power, rich color, easy color display, low cost, Excellent temperature characteristics and illuminating properties are not affected by temperature. Compared with liquid crystal display technology, organic electroluminescent technology has the advantages of thinner thickness, faster response time, and display at low temperatures.

The OLED has a structure in which a plurality of organic materials are vapor-deposited into an organic light-emitting structure by vacuum thermal evaporation on a substrate having a transparent electrode, and a metal layer as a cathode is formed on the organic layer light-emitting structure. When a forward bias voltage is applied between the transparent electrode and the metal layer, the hole is injected by the transparent electrode, and the electron is injected Injected by the metal layer, electrons and holes are combined in the organic light-emitting structure due to the potential difference caused by the applied electric field. Part of the energy released by the electron hole combination excites the luminescent molecules of the luminescent structure to become an excited state. When the luminescent molecules decay from the excited state to the ground state, a certain proportion of the energy is emitted in the form of photons, and the emitted light is Organic electric excitation.

OLED has environmental protection and energy saving features, and can be applied to various products such as lighting, digital TV screens, display panels, tablet computers, smart phones, and the like. When a general OLED is used for an illumination source, in order to achieve illumination stability, it is usually required to pass a rectifier (AC/DC) to convert the alternating current into direct current, and then the light source can stably emit light. However, the large size of the rectifier is also easy to cause. Energy conversion loss.

In order to improve the above-mentioned shortcomings of the OLED for illumination, the present disclosure proposes an AC-driven organic electroluminescent diode network that directly drives an organic electroluminescent diode network with an AC power source.

Embodiments of the present disclosure can provide an AC driven organic electroluminescent diode network.

Another embodiment disclosed is related to an AC-driven organic electroluminescent diode network including an AC voltage source and a a group of organic electroluminescent diodes, wherein both ends of the alternating voltage source are coupled to both ends of the group of organic electroluminescent diodes, and the group of organic electroluminescent diodes is at least one or at least two side by side An organic electroluminescent diode consists of a diode.

Another embodiment disclosed is an AC-driven organic electroluminescent diode network comprising an AC voltage source, four sets of sub-organic electro-excitation diodes, and a main organic electro-excitation diode group, wherein There are four sets of sub-organic electro-excitation photodiode groups connected to both ends of the voltage source, and the connection mode between each group of sub-organic electro-excitation photodiode groups is opposite in opposite directions, and the two sub-organic electric excitations are opposite. The photodiode group is respectively connected to the two ends of the main organic electroluminescent dipole group; further, the sub-organic electro-excitation photodiode group is composed of one or at least two single organic electro-optic lights that are side by side and have the same polarity direction. The main organic electroluminescent diode group is composed of one or at least two side-by-side and at least one organic electroluminescent diodes having the same polarity direction.

The above and other advantages of the present disclosure will be described in detail below with reference to the following drawings, detailed description of the embodiments, and claims.

10‧‧‧AC-driven organic electroluminescent diode network

11‧‧‧AC voltage source

12‧‧‧Organic Electroluminescent Exciter Group

13, 14, 15, 16‧‧‧ Side-by-side organic electroluminescent diodes

20‧‧‧AC-driven organic electroluminescent diode network

21‧‧‧Organic Electroluminescent Exciter Group

22‧‧‧First Organic Electroluminescent Dipole Group

23‧‧‧Second Organic Electroluminescent Exciter Group

30‧‧‧AC-driven organic electroluminescent diode network

31‧‧‧AC voltage source

32, 33, 34, 35‧ ‧ times organic electroluminescent diodes

36‧‧‧Main organic electroluminescent diode group

The first a diagram is a schematic diagram consistent with an embodiment of the disclosure, illustrating an AC-driven organic electroluminescent diode network.

The first b diagram is a schematic diagram consistent with an disclosed embodiment, illustrating the first a In the figure, the AC voltage source of the AC-driven organic electroluminescent diode network is connected in series with a current-limiting group.

The second figure is a schematic diagram consistent with an disclosed embodiment, illustrating an AC-driven organic electroluminescent diode network, wherein the group of organic electroluminescent diodes includes a first and a second organic electrical excitation Light diode group.

The third figure is a schematic view consistent with another disclosed embodiment illustrating an AC driven organic electroluminescent diode network.

The present disclosure relates to an AC-driven organic electroluminescent diode network, and more particularly to an AC-driven organic electroluminescent diode network. The first figure is a schematic diagram consistent with an embodiment of the disclosure, illustrating an AC-driven organic electroluminescent diode network. Referring to the embodiment of the first figure, the AC-driven organic electroluminescent diode network 10 includes an AC voltage source 11 and an organic electroluminescent diode group 12, wherein the two ends of the AC voltage source 11 are connected. To both ends of the organic electroluminescent diode group 12, and the organic electroluminescent diode group 12 is composed of one or at least two side by side at least one organic electroluminescent diode.

For example, in the first figure, the group of organic electroluminescent diodes is composed of four 13, 14, 15, 16 side-by-side at least one organic electroluminescent diode. Moreover, the at least one organic electroluminescent diode system in the group of organic electroluminescent diodes 12 arranged side by side means that each row is composed of a plurality of single organic electroluminescent lamps. The diodes are formed in series or in series and parallel mode. For example, in the first figure, each row is composed of six organic electroluminescent diodes in a series-parallel manner. When the AC voltage source applies an alternating voltage to the organic electroluminescent diode group 12, only half of the time (ie, when the upper terminal voltage of the organic electroluminescent diode group 12 is higher than the lower terminal voltage), the organic electroluminescent diode The organic electroluminescent diode of group 12 is in a forward biased state and emits organic electroluminescent light.

The AC voltage source of the AC-driven organic electroluminescent diode network in FIG. 1A may also include a power source protection and/or a series of current limiting groups. The first b diagram is a schematic diagram consistent with an disclosed embodiment, illustrating that the AC voltage source of the AC-driven organic electroluminescent diode network in the first diagram is connected in series with a current-limiting group. As shown in FIG. b, the AC voltage source 11 is connected in series with a current limiting group 11a to limit the current supplied by the AC voltage source 11 to protect the operation of the AC-driven organic electroluminescent diode network 10.

The second figure is a schematic diagram consistent with an disclosed embodiment, illustrating an AC-driven organic electroluminescent diode network, wherein the group of organic electroluminescent diodes includes a first and a second organic electrical excitation Light diode group. Referring to the embodiment of the second figure, the AC-driven organic electroluminescent diode network 20 includes an AC voltage source 21 and an organic electroluminescent diode group 22, wherein the organic electroluminescent diode group 22 includes a first group of organic electroluminescent diodes 23 and a second group of organic electroluminescent diodes 24. The first organic electroluminescent diode group 23 is arranged side by side by one or at least two And at least one organic electroluminescent diode having the same polarity direction, the second organic electroluminescent diode group 24 being one or at least two side by side and having the same polarity direction, and the first organic electroluminescent light The polar group 23 is composed of at least one organic electroluminescent diode having opposite polarities. In the second figure, the first organic electroluminescent diode group 23 and the second organic electroluminescent diode group 24 are in a series-parallel manner by four side-by-side six organic electroluminescent diodes. Composed of.

In the second figure, when an alternating voltage source applies an alternating voltage to the organic electroluminescent diode group 22, half of the time (ie, when the upper terminal voltage of the organic electroluminescent diode group 22 is lower than the lower terminal voltage) The organic electroluminescence diode of the first organic electroluminescent diode group 23 is in a forward bias state and is in an on state, and the organic electroluminescence light can be emitted. The other half of the time (ie, when the voltage of the upper end of the organic electroluminescent diode group 22 is higher than the voltage of the lower end), the organic electroluminescent diode of the second group of organic electroluminescent diodes 24 is forward biased. It is pressed and turned on, and organic electroluminescence can be emitted. As described above, the AC voltage source 21 in the second figure may further include a power source protection and/or a series of current limiting groups to protect the operation of the AC-driven organic electroluminescent diode network 20.

The third figure is a schematic view consistent with another disclosed embodiment illustrating an AC driven organic electroluminescent diode network. The AC-driven organic electroluminescent diode network 30 disclosed herein comprises an AC voltage source 31, four sets of sub-organic electro-optic diodes 32, 33, 34, 35 and a main organic electric excitation. a photodiode group 36, wherein the two ends of the alternating voltage source 31 are connected to the four sets of sub-organic electroluminescent dipole groups 32, 33, 34, 35, and each group of sub-organic electro-optic diode groups The connection is reversed in pairs, such as 32 and 33, and 34 and 35. And connecting two opposite two groups of sub-organic electroluminescent diodes respectively to the two ends of the main organic electroluminescent diode group, for example, two pairs of opposite sub-organic electroluminescent dipole groups 32 and 33 are respectively connected At the two ends of the main organic electroluminescent diode group 36; further, the sub-organic electroluminescent diode group, such as 32, is composed of one or at least two single organic electroluminescent diodes arranged side by side and having the same polarity direction. The main organic electroluminescent diode group 36 is composed of one or at least two side-by-side and at least one organic electroluminescent diodes having the same polarity direction.

In the AC-driven organic electroluminescent diode network described in the third figure, the number of side-by-side groups of the sub-organic electroluminescent dipole groups is equivalent to the number of side-by-side groups of the main organic electroluminescent dipole groups. Referring to the third figure, the number of side-by-side (e.g., four) numbers of the sub-organic electroluminescent diode groups, such as 32, is equivalent to the number of side-by-sides of the main organic electroluminescent dipole group 36. In addition, the at least one organic electroluminescent diode system in the main organic electroluminescent diode group 36 located in one or side by side means that each row is connected in series or in series by a plurality of single organic electroluminescent diodes. Composed of. Referring to the third figure, each row of the main organic electroluminescent diode groups 36 is composed, for example, of six single organic electroluminescent diodes in a series-parallel manner.

According to the above, in the third figure, the alternating voltage source applies an alternating voltage to the alternating current driven organic electroluminescent diode network, and the voltage of the secondary organic electroluminescent diode group 32 and 33 is higher than the secondary point. When the voltage of the organic electroluminescent diode group 34 and 35 is connected, the sub-organic electroluminescent dipole group 32, the main organic electroluminescent dipole group 36, and the sub-organic electroluminescent dipole group 35 All of them are forward biased and turned on, and the sub-organic electroluminescent diode group 33 and the sub-organic electroluminescent diode group 34 are reverse biased and turned off. When the voltage at the junction of the secondary organic electroluminescent diode groups 32 and 33 is lower than the voltage at the junction of the sub-organic electroluminescent diode groups 34 and 35, the sub-organic electroluminescent diode group 33 has a main The electromechanical excitation photodiode group 36 and the sub-organic electro-excitation photodiode group 34 are all forward-biased and in a conducting state, and the sub-organic electro-excitation photodiode group 32 and the sub-organic electro-excitation photodiode Group 35 is reverse biased and is in an off state. In both cases, the main organic electroluminescent diode group 36 is in a forward biased state and can emit organic electroluminescent light. As described above, the AC voltage source 31 in the third figure may further include a power source protection and/or a series current limiting group to protect the operation of the AC driven organic electroluminescent diode network 30.

The above is only the embodiment of the disclosure, and the scope of the disclosure is not limited thereto. All changes and modifications made to the scope of the patent application of the present invention are intended to fall within the scope of the invention.

10‧‧‧AC-driven organic electroluminescent diode network

11‧‧‧AC voltage source

12‧‧‧Organic Electroluminescent Exciter Group

13, 14, 15, 16‧‧‧ Side-by-side organic electroluminescent diodes

Claims (9)

An AC-driven organic electroluminescent diode network comprising: an AC voltage source; and an organic electroluminescent diode group; wherein both ends of the AC voltage source are coupled to the organic electroluminescent diode group The two ends of the group, and the group of organic electroluminescent diodes are composed of one or at least two organic electroluminescent diodes arranged side by side and of the same polarity. The AC-driven organic electroluminescent diode network according to claim 1, wherein the AC voltage source further comprises a power source protection and/or a current limiting resistor connected in series. The AC-driven organic electroluminescent diode network according to claim 1, wherein the at least one organic electroluminescent dipole system located in one or side by side of the group of organic electroluminescent diodes refers to each One row consists of several single organic electroluminescent diodes in series or in series and parallel. The AC-driven organic electroluminescent diode network according to claim 1, wherein the organic electroluminescent diode group comprises a first organic electroluminescent diode group and a second organic battery a group of excitation photodiodes, the first group of organic electroluminescent diodes being composed of one or at least two organic electroluminescent diodes arranged side by side and having the same polarity direction, the second organic electroluminescent diode The body group is composed of one or at least two side-by-side and at least one organic electroluminescent diodes having the same polarity direction and opposite in polarity to the first organic electroluminescent diode group. The AC-driven organic electroluminescent diode network according to claim 4, wherein the at least one organic electroluminescent dipole system in the group of the first organic electroluminescent diodes arranged side by side or in parallel Wherein each row is composed of a plurality of single organic electroluminescent diodes in series or in series and parallel manner, and the at least one organic electroluminescent diode is located in one or side by side of the second group of organic electroluminescent diodes. The system means that each row is composed of a plurality of single organic electroluminescent diodes in series or in series and parallel. An AC-driven organic electroluminescent diode network comprising: an AC voltage source; four sets of sub-organic electro-excitation diodes; and a main organic electro-excitation diode group; wherein, the two AC voltage sources The four groups of sub-organic electroluminescent dipole groups are connected at the end, and the connection between the groups of the sub-organic electro-optic diode groups is opposite in opposite directions, and the two organic electro-optical excitation dipoles are opposite. The body groups are respectively connected to the two ends of the main organic electroluminescent dipole group; further, the sub-organic electro-excitation photodiode group is composed of one or at least two single organic electroluminescent lights arranged side by side and having the same polarity direction. The main organic electroluminescent diode group is composed of one or at least two organic electroluminescent diodes arranged side by side and of the same polarity. The AC-driven organic electroluminescent diode network according to claim 6, wherein the AC voltage source further comprises a power source protection and/or a current limiting resistor connected in series. The AC-driven organic electroluminescent diode network according to claim 6, wherein the number of side-by-side groups of the organic electroluminescent diode groups is equivalent to the main organic electroluminescent diode group. Side by side quantity. The AC-driven organic electroluminescent diode network according to claim 6, wherein the at least one organic electroluminescent dipole system located in one or side by side of the main organic electroluminescent dipole group Each row consists of several single organic electroluminescent diodes in series or series-parallel.