TWI555192B - A light emitting device - Google Patents

Description

Illuminating device

Embodiments of the present invention relate to a light-emitting device including an organic light-emitting portion, and more particularly to a light-emitting device capable of controlling brightness, thereby reducing a local luminance difference generated in the light-emitting portion.

Generally, an organic light emitting diode (OLED) includes an anode, an organic light emitting portion on the anode, and a cathode on the organic light emitting portion.

When electric power is applied between the anode and the cathode in such an organic light-emitting diode, a hole is injected from the anode into the organic light-emitting portion, and electrons are injected from the cathode into the organic light-emitting portion.

The holes and electrons injected into the organic light-emitting portion are recombined in the organic light-emitting portion to form excitons. When such excitons migrate from the excitation state into the ground state, the light is emitted.

If the anode, the cathode, and the organic light-emitting portion are in contact with moisture, oxygen, nitrogen oxides (NOx), and the like contained in the air, the performance and service life of the anode, the cathode, and the organic light-emitting portion are significantly deteriorated. Therefore, a protective layer is formed on the anode, the cathode, and the organic light-emitting portion.

The organic light emitting diode can be fabricated as a thin film, and the thickness of the light source can be innovatively reduced. Therefore, less temperature increase tendency and low power drive can be achieved in the organic light emitting diode.

In addition, organic light-emitting diodes use various types of organic light-emitting materials. The organic light emitting diode can be used as a panel of a display device. Therefore, organic light-emitting diodes have been widely used in liquid crystal display devices, various light-emitting devices, and backlight units of display devices.

The "Fig. 1" is a schematic diagram showing the supply process of positive voltage and negative voltage in a conventional organic light-emitting device.

In the conventional organic light-emitting device 10, the (+) voltage is supplied to the placed electrode pads along the left and right sides of the organic light-emitting portion 20, and the (-) voltage is supplied to the placed electrode pads along the top and bottom sides of the organic light-emitting portion 20. .

However, the charge density is relatively high near each side and the edge of the organic light-emitting portion 20, and the charge density gradually decreases toward the center due to the electric resistance indicated by the arrow in "Fig. 1".

Since the edge region of the organic light-emitting portion 20 has the highest positive and negative charge density, the voltage and brightness are the highest.

Further, the central region of the organic light-emitting portion 20 has the lowest positive and negative charge density, so the voltage and the luminance are the lowest.

For example, in the organic light-emitting portion 20 of 250 mm × 250 mm size, if the brightness of the edge region is 500 candelas (cd), the luminance of the central region will be 250 candelas, and the luminance difference is more than twice. Such a difference in luminance makes it difficult to generate high luminance and may have a negative influence on the service life of the organic light-emitting portion 20.

In the meantime, another conventional organic light-emitting diode disclosed in the Korean Patent No. 10-2009-0050950 uses an auxiliary electrode.

Because of the electrical resistance of the material typically used for the anode, there is a significant difference between the brightness of the edge regions of the organic light-emitting device and the brightness of the central region.

In other words, the charge density is high in each of the side surface regions and the edge regions of the organic light-emitting portion, and the charge density gradually decreases toward the center due to the electric resistance.

Therefore, among the organic light-emitting portions, the edge region having the highest positive and negative charge density has the highest voltage and the highest luminance.

Further, in the organic light-emitting portion, the center having the lowest positive and negative charge density has the lowest voltage and the lowest luminance.

If such a luminance difference is generated, it is difficult to achieve high luminance and adversely affect the service life of the organic light emitting diode.

In order to solve this defect, an auxiliary electrode is arranged on the anode, and the resistance value of the auxiliary electrode is lower than the resistance value of the anode. Therefore, the current is actually transmitted to the central region of the organic light emitting diode.

However, even in this case, there is a difference between the resistance value of the center and the resistance value of the external region in the auxiliary electrode. This problem is not completely solved due to the difference in current applied to each region, resulting in a difference in luminance in each region.

Accordingly, an embodiment of the present invention provides an organic light emitting device. In order to solve these problems, an object of an embodiment is to provide an organic light emitting diode device having a novel current supply method capable of reducing a luminance difference between an edge and a center of an organic light emitting diode.

Another object of the present invention is to provide a light-emitting device which can enhance the uniformity of brightness by driving the control panel based on the measured voltage or current value after the auxiliary electrode portion is applied in the region where the luminance is deteriorated.

It is still another object of the present invention to provide a light-emitting device that is integrated in an auxiliary electrode After the body forms the sense resistor, the panel can be accurately and efficiently controlled by the characteristics of the measurement panel such as voltage, current, and temperature.

Another object of the present invention is to provide a light-emitting device that simplifies the production process and reduces the complexity of the external circuit by providing a sensing resistor integrally formed with the auxiliary electrode to omit an additional process of providing an additional sensing resistor externally.

In order to obtain these and other advantages of the embodiments of the present invention, the present invention is embodied and broadly described. A light-emitting device includes a substrate; a first electrode portion is provided on the substrate; and a light-emitting portion is provided. In an electrode portion, the light emitting portion includes an organic light emitting material; the second electrode portion is provided in the light emitting portion, wherein a plurality of regions separated from each other and insulated are provided in at least one of the first electrode portion and the second electrode portion, And power supplies including mutually different polarities are respectively supplied to the plurality of regions to suppress a luminance difference generated in the light emitting portion.

The first region and the second region insulated from each other are alternately formed in the first electrode portion along the vicinity of the predetermined region of the first electrode portion. A first power source having a predetermined polarity is supplied to the first region, and a second power source having an opposite polarity is supplied to the second region. The first electrode portion contacts the light emitting portion in the first region and does not contact the second electrode portion. The first electrode portion contacts the two electrode portions in the two regions without contacting the light portion.

The light emitting device further includes an insulating portion arranged on the first electrode portion. The first electrode portion in the boundary between the first region and the second interval is removed, and the insulating portion is placed on the boundary where the first electrode portion is removed.

When the first power source is (+) polarity, the second power source is (-) polarity, and when the first power source is (-) polarity, the second power source is (+) polarity.

At least one of the sides of the first electrode portion includes the first region and the second region. The second zones are electrically isolated from each other.

The edge of the first electrode portion includes a blank region in which the first region and the second region are not arranged.

The same area of the first area and the second area are arranged adjacent to the blank area.

According to another aspect of the present invention, a light emitting device includes a substrate; an electrode portion is provided on the substrate; a light emitting portion is provided in the first electrode portion, the light emitting portion includes an organic light emitting material; and the second electrode portion is Provided in the light emitting portion; and a current supply device for supplying power to at least one of the first and second electrode portions. The plurality of first and second electrode portions provide a plurality of regions that are isolated and insulated from each other. The current supply device includes a resistance tool to control a current value supplied to the first electrode portion or the second electrode portion, thereby suppressing a luminance difference generated in the light emitting portion.

The current supply device includes a first connection pad for supplying power to one of the predetermined areas and a second connection pad for supplying a power source having a reverse polarity to another area. The resistance tool controls the current value supplied to the one or the second connection pad.

These zones comprise a first zone and a second zone insulated from and spaced apart from the first zone. The current supply device includes a first power supply portion for supplying a first power source having a predetermined polarity, a second power supply portion for supplying a second power source having a reverse polarity, and an insulating frame including a central portion and a margin of the blank space a first power supply portion includes a first power supply line and a plurality of first connection pads, the first power supply lines are arranged along the peripheral portion on the peripheral portion, and connected to the first power supply portion, the first connection The pad branches along the first power supply line; and the second power supply portion includes a second power supply line and a plurality of second connection portions, and the second power supply line is arranged along the first power supply line under the peripheral portion, and electrically connected to the second Power supply, these second connections are along the second Power supply line branch.

The illuminating device further includes a resistance tool connected between the first power supply and the first connection pad or between the second power supply line and the second connection pad for controlling supply to the first connection pad or the second electrode pad Current value.

The first electrode portion includes a plurality of sides, and each side of the first electrode portion includes a first region and a second region. The closer the resistance tool is to the edge of the first power supply line, the greater the resistance value.

A resistance tool connects each of the first connection pads or each of the second connection pads.

Two or more first connection pads or two or more second connection pads are branched from a single resistive tool.

The first connection pad extends along the bottom of the insulating frame and passes through the insulating frame.

The first power source is a (+) voltage, the second power source is a (-) voltage, and the resistance tool is arranged between the first power supply line and the first connection pad.

According to still another aspect of the present invention, a light emitting device includes a substrate; a first electrode portion is arranged on the substrate; an auxiliary electrode portion is arranged in the first electrode portion; and a light emitting portion is arranged on the auxiliary electrode portion and the first electrode portion a second electrode portion provided in the light emitting portion; a power supply portion for supplying power to the light emitting portion via the first electrode portion, the second electrode portion, and the auxiliary electrode portion; and a control portion connecting the auxiliary electrode portion to measure application to The current or voltage of the auxiliary electrode, and the power supply of the power supply unit are controlled according to the measurement result to suppress the luminance difference generated in the light-emitting portion.

The auxiliary electrode portion includes a power receiving portion for forming an external periphery, a wiring portion that connects the power receiving portion, the wiring portion is closed by the power receiving portion, and a sensing resistor that is provided in the power receiving portion.

The power receiving portion includes a first extension extending outwardly; a second extension extending from one end of the first extension; and an electrode exposure portion formed by the first and second extensions. The sense resistors are arranged from a predetermined side of the exposed portion of the electrode toward the second extension.

One end of the sense resistor is spaced from the second extension.

A plurality of sensing resistors are provided, the sensing resistors being arranged at a predetermined edge of the power receiving portion and at another opposite edge.

A plurality of sense resistors are provided, the sense resistors being spaced apart from each other along the periphery of the power receiving portion.

The light emitting device further includes an insulating portion provided on the auxiliary electrode portion to insulate the auxiliary electrode portion and the light emitting portion from each other.

The control unit controls the power supply by comparing the current flowing to the set resistor including the sense resistor or the voltage applied to the set resistor to the reference voltage or the reference current.

The resistance value of the set resistor is the sum of the resistance value of the sense resistor pair formed in the different edges and the resistance value of one of the equivalent resistance or the sense resistor of the auxiliary electrode between the pair of sense resistors.

Two of the sensing resistors formed in the different edges are paired with the shortest distance between the two.

The control unit is a current control unit or an overcurrent protection circuit for controlling a current value applied to at least one of the first electrode unit, the auxiliary electrode unit, the light emitting unit, and the second electrode unit.

The control unit is provided corresponding to each pair of sensing resistors.

The control unit connects at least one of the pair of sensing resistors.

The current control unit includes a reference voltage supply circuit for transmitting an input voltage Generating a reference voltage; calibrating the mirror circuit, connecting one end of the set resistor connected to the ground to generate a control signal according to the reference voltage and the set resistor; and a current control circuit for controlling the first electrode portion and the auxiliary according to the control signal At least one of the electrode portion, the light emitting portion, and the second electrode portion flows.

The current control unit includes a comparator including a first input terminal connected to one end of the set resistor and another terminal connected to the constant current source; and a switching element including a collector terminal connected to the other end of the set resistor and an output terminal connected to the comparator A pole terminal in which an emitter terminal is connected to a ground terminal (GND).

The current control unit includes a first resistor, one end is connected to the input power source, the other end is connected to one end of the set resistor and the first input terminal of the comparator; the comparator, the first input terminal is connected to the end of the set resistor and the first resistor; and the switch component The gate terminal is connected to the output terminal of the comparator, and the source terminal or the drain terminal is connected to at least one of the first electrode portion, the auxiliary electrode portion, the light emitting portion and the second electrode portion, and the other of the two is connected to the terminal.

The resistance value of the sense resistor is variable based on temperature.

The overcurrent protection circuit comprises a switching component, the collector terminal is connected to the power supply, the emitter terminal is connected to each of the drain terminals, the comparator is connected to the base terminal of the switching component, and one of the input terminals is connected to the emitter terminal; and the second The resistor has one end connected to the other input terminal of the comparator and the other end connected to one end of the set resistor. The set resistor is connected between the second resistor and the collector.

The light emitting device further includes a protective cover provided on the second electrode portion; and a conductor provided in the protective cover opposite to the second electrode portion. The control unit is connected to the conductor, and the control unit controls the power source to the opposite polarity to the polarity of the power source applied to the second electrode portion. The body, in order to capture the charge of the predetermined polarity emitted by the second electrode portion together with the charge having the opposite polarity, so that the trapped charge having the predetermined polarity together with the charge having the opposite polarity generates the light emission in the light emitting portion.

These embodiments have the following advantages. According to an embodiment of the present invention, an organic light emitting diode device having a new current supply method can reduce a luminance difference between an edge and a center of an organic light emitting diode.

Further, after the auxiliary electrode portion is applied in the region where the luminance is deteriorated, the light-emitting device provided by the present invention can enhance the brightness uniformity through the driving of the control panel based on the measured voltage or current value.

In addition, after integrally forming the sensing resistor in the auxiliary electrode, the light-emitting device provided by the present invention can achieve accurate and effective panel control by measuring panel characteristics such as voltage, current, and temperature.

In addition, by providing an integrally formed sensing resistor and an auxiliary electrode to omit an additional process of providing an additional sensing resistor externally, the present invention provides a lighting device that simplifies the manufacturing process and reduces the complexity of the external circuit.

It is to be understood that the foregoing general description of the invention and the claims

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. The same reference numbers are used throughout the drawings to refer to the same or equivalent parts.

"Fig. 2" shows a plurality of layers provided in the light-emitting device of the embodiment of the present invention. Schematic diagram. The "figure 3" is a plan view showing the first electrode portion of the light-emitting device shown in "Fig. 2". The "figure 4" is a plan view showing the insulating portion of the light-emitting device shown in "Fig. 2".

The light-emitting device 200 includes a substrate 210, a first electrode portion 220, an insulating portion 230, a light-emitting portion 240 formed of an organic light-emitting material, and a second electrode portion 250.

The substrate 210 is a transparent substrate or an opaque substrate. Further, the substrate 210 may be formed of a flexible material. For example, the substrate 210 may be a glass substrate and may be formed in a polygonal, circular, elliptical, star, or curved shape.

The first electrode portion 220 is formed on the substrate 210, and the first electrode portion 220 is formed by depositing or coating a conductive material on the substrate 210.

The first electrode portion 220 may be formed of an opaque material such as calcium (Ca), barium (Ba), magnesium (Mg), silver (Ag), copper (Cu), aluminum (Al), or an alloy of these materials.

Further, the first electrode portion 220 may be formed of a transparent conductor, for example, formed of indium tin oxide (ITO) or indium zinc oxide (IZO). For example, the first electrode portion 220 is formed of indium tin oxide.

Referring to "Fig. 3", the first electrode portion 220 is removed along the line 220a. For example, laser scribing is used as a method of removing the first electrode portion 220 along the line 220a.

When the first electrode portion 220 is removed along the line 220a, the first electrode portion 220 is divided into a first region 221 and a second region 222 which are insulated from each other.

The first region 221 and the second region 222 are alternately formed along a region in the vicinity of the first electrode portion 220.

In these figures, three first regions 221 and four second regions 222 are formed in each short side of the first electrode portion 220. Further, in each long side of the first electrode portion 220 Five first zones 221 and six second zones 222 are formed.

The first zones 221 are electrically connected to each other and the second zones 222 are electrically isolated from each other. The first power source is connected to the first zone, and the second power source is connected to the second zone 222. For example, when a positive voltage is connected to the first region 221, a negative voltage is connected to the second region 222. Otherwise, when the negative voltage is connected to the first region 221, the positive voltage is connected to the second region 222.

A blank area 223 is arranged at each edge of the first electrode portion 220, wherein the first area 221 and the second area 222 are not formed. For example, the same area of the first area 221 or the second area 222 is arranged next to each blank area 223. In the drawing, the second area 222 is arranged next to the blank area 223.

The insulating portion 230 is formed on the first electrode portion 220 (refer to "Fig. 4"). The insulating portion 230 is, for example, annular, and has a non-uniform pattern of a plurality of convex portions and concave portions 232. The insulating portion 230 is formed, for example, by applying a photoresist.

Referring to FIG. 2, the protruding portion 231 of the insulating portion 230 is mostly located on the first region 221 of the first electrode portion 220. This is because the first electrode portion 220 must be isolated from the second electrode portion 250 through the insulating portion 230, which will be described later.

The light emitting portion 240 is located on the first electrode portion 220 and the insulating portion 230. The light emitting portion 240 is formed inward with respect to the insulating portion 230 to partially overlap the insulating portion 230 and is not laminated on the second region 222. The light emitting portion 240 includes a red light emitting material, a green light emitting material, or a blue light emitting material.

The light-emitting portion 240 includes a light-emitting layer, and realizes light emission as a result of recombination of electron-hole pairs. In addition, the light emitting portion 240 further includes at least one of a hole injection layer, an electron injection layer, a hole transport layer, and an electron transport layer.

The second electrode portion 250 is formed on the light emitting portion 240. In the first zone 221, the first The two electrode portions 250 are laminated on the insulating portion 230 without exceeding the protruding portion 231 of the insulating portion 230. In the second region 222, the second electrode portion 250 is laminated on the first electrode portion 220 beyond the insulating portion 230.

The second electrode portion 250 may be formed of an opaque material such as calcium (Ca), barium (Ba), magnesium (Mg), silver (Ag), copper (Cu), aluminum (Al), or an alloy of these materials. Further, the second electrode portion 250 may also be formed of a transparent material such as indium tin oxide (ITO) or indium zinc oxide (IZO). For example, the second electrode portion 250 is formed of aluminum.

When the light emitting device completes one side of light emission, one of the first electrode portion 220 and the second electrode portion 250 is formed of a transparent electrode. When the light emitting device completes the light emission on both sides, both the first electrode portion 220 and the second electrode portion 250 are formed of transparent electrodes.

The "figure 5" is a plan view showing the connection process between the first electrode portion and the power source shown in "Fig. 3". The "figure 6" is a cross-sectional view taken along line A-A' of the light-emitting device shown in "Fig. 2". Fig. 7 is a cross-sectional view taken along the line B-B' of the light-emitting device shown in Fig. 2.

Please refer to "figure 5", the (+) voltage is connected to the first region 221, and the negative voltage is connected to the second region 222. This voltage connection enables the (+) and (-) voltages to be alternately supplied to the side of the first electrode portion 220.

Referring to FIG. 6, the (+) voltage supplied to the first electrode portion 220 located at the outer periphery of the light-emitting device is transmitted along the inner first electrode portion 220 to the light-emitting portion 240 contacting the first electrode portion 220. In this case, the first electrode portion 220 to which the (+) voltage is supplied may be the first region 221.

In the first region 221, the first electrode portion 220 contacts the light emitting portion 240 and does not contact the second electrode portion 250. This is because the insulating portion 230 is located at the first electrode portion 220 and the second electrode. Between the poles 250.

Meanwhile, referring to "FIG. 7", the (-) voltage supplied to the first electrode portion 220 located at the outer periphery of the light-emitting device is transmitted to the second electrode portion 250 contacting the first electrode portion 220.

The (-) voltage transmitted to the second electrode portion 250 is transmitted to the light emitting portion 240 contacting the second electrode portion 250.

In "Fig. 7", the first electrode portion 220 at both ends is electrically isolated from the first electrode portion 220 located at the center.

In conjunction with the content of FIG. 3, the first electrode portion 220 corresponding to the boundary between the first region 221 and the second region 222 is removed along the line 220a to electrically isolate the first region 221 and the second region 222 from each other.

The insulating portion 230 is laminated on the region where the first electrode portion 220 has been removed to enhance insulation.

Therefore, in "Fig. 7", the first electrode portion 220 at both ends is the second region 222, and the first electrode portion 220 at the center portion is the first region 221. Therefore, the first region 221 and the second region 222 are electrically isolated from each other. In the second region 222, the first electrode portion 220 contacts the second electrode portion 250 and does not contact the light emitting portion 240.

The (+) and (-) voltages transmitted to the first electrode portion 220 are supplied along the first electrode portion 220 and the second electrode portion 250, respectively, so that current flows along the first electrode portion 220, the light emitting portion 240, and the second electrode The part 250 flows.

"Figure 8" is a schematic diagram of the charge distribution supplied by the (+) and (-) voltages.

In the light-emitting device of the embodiment, the (+) voltage and the (-) voltage are alternately arranged and supplied to, for example, the side surface of the rectangular first electrode portion 220.

Please refer to "Fig. 1". The distance between the (+) voltage and the (-) voltage is closer to the edge of the conventional illuminating device 10, and further and further toward the center, so that the brightness difference between the center and the edge is compared. Big.

However, in the light-emitting device according to the embodiment of the present invention, the (+) and (-) voltages are alternately arranged and supplied so that the distance between the (+) and (-) voltages remains close regardless of the position.

When the (+) and (-) voltages are close, the area affected by the charge is effectively amplified, as indicated by the dashed line. Therefore, compared with the case where the (+) and (-) voltages are farther, the charge density can be increased, and the difference in luminance between the edge and the center in the light-emitting device (or organic light-emitting material) can be remarkably reduced.

For example, in an organic light-emitting material having a size of 250 mm x 250 mm, when the brightness of the edge is 500 candelas (cd), the central brightness is maintained at 400 candelas.

Further, a blank area 223 in which the (+) and (-) voltages are not arranged is provided in the edge of the first electrode portion 220, and the charge of the edge is relatively higher than that of the other regions. Therefore, it is possible to avoid excessively enhancing the brightness.

Further, the same voltage such as a (+) or (-) voltage is arranged in close proximity to the blank area 223. Therefore, the (+) and (-) voltages are effectively spaced from each other.

This avoids excessively increasing the charge at the edges and reducing the difference in brightness between the center and the edge in the illumination device.

A supply process of alternating (+) and (-) voltages in each side of the rectangular illuminator is described. However, at least one of the (+) and (-) voltage arrangement methods on the side of the light-emitting device can bring about an effect as compared with the conventional light-emitting device. This can be applied to a circular, elliptical or curved shaped illumination device.

In the meantime, with "1st picture", "2nd picture", "3rd picture", "4th picture", "5th Compared with the examples shown in Fig., "6th", "7th" and "8th", combined with "9th", "10th", "11th", "12th" Embodiments described in the drawings, "13th", "14th", "15th", "16th", "17th", "18th", and "19th" Different methods are used to control the brightness. The same reference numerals are used to describe the embodiment and "1", "2", "3", "4", "5", "6", "7" The same elements as in the above embodiment are shown in Fig. 8 and Fig. 8 .

Fig. 9 is a plan view showing a current supply device 100 according to an embodiment of the present invention.

The current supply device 100 includes a first power supply portion 111, a second power supply portion 112, a first power supply 120, a second power supply 130, a resistance tool 140, and an insulating frame 150.

The first power supply portion 111 supplies the first power source 120 with a first power source, such as a (+) voltage.

The second power supply portion 112 supplies the second power source 130 with a second power source, such as a (-) voltage.

The first power supply (121, 122: 120) includes a first power supply line 121 and a plurality of first connection pads 122, wherein the first power supply line 121 is electrically connected to the first power supply unit 111, and the first power supply line 121 A plurality of first connection pads 122 are expensed. As shown in "Fig. 9", a (+) voltage is supplied to these first connection pads 122.

The insulating frame (150a, 150b: 150) is formed in a thin plate shape and includes a central portion 150a and a peripheral portion 150b, wherein the central portion 150a is located at a central portion of the insulating frame 150, and the peripheral portion 150b is arranged along the central portion 150a.

The central portion 150a may be a polygon. In the "fifth diagram", the central portion 150a has a rectangular shape, and the peripheral portion 150b has a rectangular shape along the central portion 150a.

The central portion 150a is formed of a predetermined material which is the same as or different from the material used for the peripheral portion 150b. Further, the central portion 150a may be a blank space. "9th drawing" shows that the central portion 150a is a blank space.

The first power supply lines 121 are arranged along the peripheral portion 150b and arranged thereon. For example, the first power supply line 121 is circular, elliptical or polygonal in a ring shape.

The "Fig. 9" indicates that the first power supply line 121 is approximately rectangular. In "Fig. 9", the first power supply line 121 forms a closed pattern and can form a closed loop pattern.

The first connection pad 122 branches along the first power supply line 121. A plurality of first connection pads 122 are provided, and the first connection pads 122 are branched toward the central portion 150a or in opposite directions.

The "Fig. 9" indicates that the first connection pad 122 branches toward the central portion 150a. One end of the first connection pad 122 protrudes from the peripheral portion 150b to extend in the direction of the central portion 150a. One end of the first connection pad 122 is formed with a contact portion.

The second power supply (131, 132: 130) includes a second power supply line 131 and a plurality of second connection pads 132, wherein the second power supply line 131 is electrically connected to the second power supply portion 112, and the plurality of second connection pads 132 branches along the second power supply line 131. As shown in "Fig. 9", the (-) voltage is supplied to the second connection pad 132.

The second power supply lines 131 are arranged along the peripheral portion 150b and arranged thereon.

The second power supply line 131 is arranged along the first power supply line 121 and insulated from the first power supply line 121 through the peripheral portion 150b. The second power supply line 131 can be Round, elliptical or polygonal.

In the "fifth diagram", the second power supply line 131 is approximately rectangular. In "9th picture", the second power supply line 131 is a closed figure and may be an open loop pattern.

The second power supply line 131 is arranged along the first power supply line 121 and arranged below it, and the peripheral portion 150b is located between the second power supply line 131 and the first power supply line 121. Since the second power supply line 131 overlaps with the first power supply line 121, a part of the second power supply line 131 is shown in "Fig. 9".

The second connection pad 132 branches along the second power supply line 131. A plurality of second connection pads 132 are provided, and the plurality of second connection pads 132 are branched toward the central portion 150a or in opposite directions.

In the "Fig. 9", the second connection pad 132 branches toward the central portion 150a. One end of each of the second connection pads 132 protrudes from the peripheral portion 150b to extend toward the central portion 150a. One end of the second connection pad 132 is formed with a contact portion.

The first connection pads 122 and the second connection pads 132 are alternately arranged. The (+) voltage is supplied to the first connection pad 122, and the (-) voltage is supplied to the second connection pad 132 such that the (+) and (-) voltages are alternately supplied in a ring shape.

The resistance tool 140 is connected between the first power supply line 121 and the first connection pad 122 or between the second power supply line 131 and the second connection pad 132 to adjust the supply to the first connection pad 122 or the first The current value of the two connection pads 132.

In the "Fig. 9", the resistance tool 140 is formed between the first power supply line 121 to which the (+) voltage is supplied and the first connection pad 122.

The resistance tools 140 are connected one after another. In other words, each resistance tool 140 connects each of the first connection pads 122.

Alternatively, two or more first connection pads 122 are branched from a single resistive tool 140. In FIG. 9, three first connection pads 122 branched from a single resistance tool 140 are provided on the left and right sides of the first power supply line 121. Therefore, the (+) voltage supplied to the first power supply portion 111 is supplied to each of the first connection pads 122 via the first power supply line 121 and the resistance tool 140.

The resistance values of the resistance tools 140 are different from each other such that the current values supplied to the first connection pads 122 are different from each other.

The first power supply line 121 has a polygonal ring shape, and as the resistance tool 140 is closer to the edge of the polygonal ring, the resistance value of the resistance tool 140 becomes larger.

For example, the first power supply line 121 has a rectangular ring shape, and as the resistance tool 140 is closer to the edge of the rectangle, the resistance value of the resistance tool 140 gradually becomes larger.

The resistance value of the resistance tool 140 is (R1 ≒ R3 ≒ R7 ≒ R9) > (R2 ≒ R8) or (R4 ≒ R6 ≒ R10 ≒ R12) > (R5 ≒ R11). For example, the resistance values are R1=400 ohms, R2=100 ohms, R3=400 ohms, R4=400 ohms, R5=0 ohms, R6=400 ohms, R7=400 ohms, R8=100 ohms, R9=400 ohms, R10 = 400 ohms or R11 = 0 ohms, R12 = 400 ohms. The resistance value of the resistance tool 140 includes a 0 ohm resistance.

When the current supply device 100 is used to supply power to the illumination device, a smaller current is supplied to each connection pad by increasing the resistance value of the resistance tool 140 closer to the rectangular edge to avoid brightness in the center and edge of the illumination device. difference.

Fig. 10 is a cross-sectional view taken along the line C-C' in the current supply device shown in Fig. 9.

The peripheral portion 150b of the insulating frame 150 is located between the first power supply line 121 and the second power supply line 131. The first coating layer 101 is located on the first power supply line 121 to protect the first power supply line 121. The second coating layer 102 is located under the second power supply line 131 to protect the second power supply line 131.

The "Fig. 11" is a cross-sectional view taken along the line D-D' in the current supply device shown in Fig. 9.

The peripheral portion 150b of the insulating frame 150 is located between the first power supply line 121 and the second power supply line 131. The through hole 151 is formed in the peripheral portion 150b, and the through hole 151 is an extending path connecting the first connection pads 122 of the resistance tool 140.

The resistance tool 140 connects the first power supply line 121 and the first connection pad 122. When passing through the resistance tool, the current supplied to the first power supply line 121 is reduced to be supplied to the first connection pad 122.

The first connection pad 122 extends along the bottom of the insulating frame 150 via the through hole 151 formed in the peripheral portion 150b.

The first coating layer 101 is located on the first power supply line 121 to protect the first power supply line 121. The second coating layer 102 is located below the second power supply line 131 to protect the second power supply line 131.

The second coating layer 102 is shorter than the first coating layer 101 and the peripheral portion 150b to expose the bottom surface of the first connection pad 122.

Fig. 12 is a cross-sectional view taken along the line F-F' in the current supply device shown in Fig. 9.

The peripheral portion 150b of the insulating frame 150 is located between the first power supply line 121 and the second power supply line 131.

The second connection pad 132 is connected to the second power supply line 131, and current is supplied from the second power supply line 131 to the second connection pad 132.

The first coating layer 101 is located above the first power supply line 121 to protect the first power supply line 121.

The second coating layer 102 is located below the second power supply line 131 to protect the second power supply line 131. The second coating layer 102 is shorter than the first coating layer 101 and the peripheral portion 150b to expose the bottom surface of the second connection pad.

As described above, in the current supply device 100 of the embodiment of the present invention, the first connection pad 122 and the second connection pad 132 are alternately formed, and the first connection pad 122 supplies (+) voltage along the peripheral portion 150b of the insulating frame 150, and second. The connection pad 132 supplies a (-) voltage. Therefore, the simple structure realized by the current supply device of the embodiment of the present invention can alternately supply the (+) and (-) voltages.

Further, in the current supply device 100 of the embodiment of the present invention, the resistance value of the resistance tool 140 that connects the first connection pad 122 or the second connection pad 132 is adjusted. Therefore, the current value supplied to the first connection pad 122 or the second connection pad 132 can be adjusted according to the user's desire.

The "Fig. 13" is a schematic diagram showing an example of using the current supply device shown in Fig. 9.

The current supply device 100 is located on the object 1 to which the current is supplied. The current supply device 100 supplies the articles 1 with alternating (+) and (-) voltages in a simple manner. For this reason, the (+) terminal and the (-) terminal are alternately formed even in the object 1.

Fig. 14 is a schematic view showing a current supply device according to another embodiment of the present invention. The same components as those provided in the embodiment shown in Figure 9 are used. The same reference numerals are used to omit the detailed description of the same elements.

The insulating frame (150a, 150b: 150) is formed in a thin plate shape, and the insulating frame 150 includes a central portion 150a and a peripheral portion 150b. The central portion 150a is located at the center of the insulating frame 150, and the peripheral portion 150b is arranged in a peripheral region of the central portion 150a.

The central portion 150a is formed of a predetermined material which is the same as or different from the material used for the peripheral portion 150b. Further, the central portion 150a may also be a blank space. In "Fig. 14", the central portion 150a is a blank space.

According to this embodiment, the first connection pad 122' and the second connection pad 132' do not protrude from the peripheral portion 150b of the insulating frame 150. Therefore, the peripheral portion 150b supports the ends of the first connection pads 122' and the second connection pads 132'.

The "fifth diagram" is a plan view showing a state in which the current supply device shown in Fig. 9 is laminated on the first electrode portion shown in Fig. 5.

Referring to FIG. 15, the current supply device 100 shown in FIG. 9 is placed on the first electrode portion 220, and current is supplied to the first region 221 and the second region 222 of the first electrode portion 220.

The first connection pad 122 is connected to the first region 221 of the first electrode portion 220, and the (+) voltage is supplied to the first region 221. The second connection pad 132 is connected to the second region 222 of the first electrode portion 220, and the (-) voltage is supplied to the second region 222.

The current supply device 100 shown in Fig. 9 is capable of alternately supplying the (+) and (-) voltages to the first region 221 and the second region 222 in accordance with a simple method.

Fig. 16 is a view showing the difference in luminance between the center and the edge of the light-emitting device in the test in which the current supply device shown in Fig. 9 is not arranged with a resistance tool. Figure 17 shows the difference in brightness between the center and the edge in the test of Figure 16. A schematic diagram of the ratio.

The test shown in Fig. 16 shows the difference in luminance between the center and the edge of a light-emitting device having a size of 150 mm × 150 mm when 4 volts and 440 mA were applied to the light-emitting device. In this example, the resistance tool 140 is not arranged in the current supply device 100. In other words, the resistance value of the resistance tool 140 is 0 ohm.

According to the test results, the central brightness is 500 candelas and the edge brightness is approximately 850 candelas. When this result is converted to a percentage, the central brightness is 100% and the edge brightness is approximately 170%.

The "Fig. 18" is a schematic diagram showing the difference in luminance between the center and the edge of the light-emitting device in the test of the resistance element in which the resistance values of the center and the different resistance values of the edge are arranged. "Figure 19 is a graphical representation of the percentage difference in brightness between the center and the edge in the test of Figure 18.

The test of Fig. 18 shows the difference in brightness between the center and the edge when 4 volts and 440 mA are applied to a light-emitting device having a size of 150 mm × 150 mm. In this case, the resistance value of the resistance tool 140 at the center is different from the resistance value of the edge of the current supply device 100.

In the rectangular current supply device, the "A" resistance tool is arranged at the edge, the "C" resistance tool is arranged at the edge and arranged in the middle of the long side, and the "B" resistance tool is arranged in the middle of the short side.

In "18th picture", the resistance value of "A" is 400 ohms, the resistance value of "B" is 100 ohms, and the resistance value of "C" is 0 ohms. In order to reduce the difference in luminance between the center and the edge, a resistance tool 140 having a large resistance value is arranged at the edge.

According to the test results, the central brightness is 570 candelas, and the brightness of the edges is approximately 720 candelas. When this result is converted to a percentage, the central brightness is 100% and the edge brightness is approximately 125%.

And the "lighting device" and "the first" shown in "Fig. 2", "3", "4", "5", "6", "7" and "8" 9, ” 10”, “11”, “12”, “13”, “14”, “15th”, “16th”, “17th” "20th", "21st", "22nd", "23rd" and "24th" compared to the light-emitting devices shown in "18th" and "19th" , "Fig. 25", "26th", "27th", "28th", "29A", "29B", "29C", "30", " 31st, 32nd, 33rd, 34th, 35th, 36th, 37th, 38th, 39th The light-emitting device shown in Fig. and "Fig. 40" can control the brightness of the light-emitting portion by different methods.

In this embodiment, "2", "3", "4", "5th", "6th", "7th", "8th", "9th" Figure, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14, Figure 15, Figure 16, Figure 17 The same components of the illuminating device shown in "Fig. 18" and "Fig. 19" are denoted by the same reference numerals.

The light-emitting device of this embodiment is an organic light-emitting diode.

As shown in FIG. 20, the light-emitting device 200 of this embodiment includes a substrate 210, a first electrode portion 220, an auxiliary electrode portion 330, an insulating portion 230, a light-emitting portion 240, and a second electrode portion 250.

The light-emitting portion 240 is an organic light-emitting portion, and the light-emitting portion 240 constituted by the organic light-emitting portion will be described below.

The substrate 210 is a transparent substrate or an opaque substrate. Further, the substrate 210 is formed of a flexible material.

The substrate 210 is an insulating substrate formed of glass, quartz, ceramic or plastic, and the substrate 210 may include light emitting regions and pad regions separated from each other.

The substrate 210 is formed in a polygonal shape, a circular shape, an elliptical shape, a star shape, or a curved shape. The first electrode portion 220 is formed on the substrate 210.

The first electrode portion 220 is formed by depositing or coating a conductive material on the substrate 210.

The first electrode portion 220 may be formed of an opaque material such as calcium (Ca), barium (Ba), magnesium (Mg), silver (Ag), copper (Cu), aluminum (Al), or an alloy of these materials.

Further, the first electrode portion 220 may also be formed of a transparent conductor, for example, formed of indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), or indium oxide (In 2 O 3 ). For example, the first electrode portion 220 is formed of indium tin oxide.

The first electrode portion 220 has a (+) polarity and is a hole injection electrode. In the meantime, the second electrode portion 250 has a (-) polarity and is an electron injecting electrode.

The light-emitting portion 240 includes a light-emitting layer that is illuminated by recombination of electron-hole pairs.

In addition, the light emitting portion 240 may be a plurality of layers including at least one of a hole injection layer, an electron injection layer, a hole transport layer, and an electron transport layer.

When the light-emitting portion 240 includes all of these layers, the hole injection layer is arranged on the positive first electrode portion 220. The hole transport layer, the light emitting layer, the electron transport layer, and the electron injection layer sequentially form a plurality of layers on the hole injection layer.

In the meantime, the second electrode portion 250 is formed on the light emitting portion 240. First electrode portion 220 In the first region 221, the second electrode portion 250 is laminated on the insulating portion 230 without exceeding the protruding portion 231 of the insulating portion 230.

The second electrode portion 250 is laminated on the first electrode portion 220 and extends beyond the insulating portion 230.

The second electrode portion 250 may be formed of an opaque material such as calcium (Ca), barium (Ba), magnesium (Mg), silver (Ag), copper (Cu), aluminum (Al), or an alloy of these materials.

Further, the second electrode portion 250 may be formed of a transparent material such as indium tin oxide (ITO) or indium zinc oxide (IZO). For example, the second electrode portion 250 is formed of aluminum.

When the light emitting device completes one side of light emission, one of the first electrode portion 220 and the second electrode portion 250 is formed of a transparent electrode. When the light emitting device completes the light emission on both sides, both the first electrode portion 220 and the second electrode portion 250 are formed of transparent electrodes.

In the meantime, the auxiliary electrode portion 300 is arranged on the first electrode portion 220, and the first electrode portion 220 is divided into predetermined blocks.

As shown in FIG. 20, the auxiliary electrode portion 300 is composed of a wire in which a current can be supplied. As shown in FIG. 20, the auxiliary electrode portions 300 are arranged on the first electrode portion 220 in a mesh type.

The auxiliary electrode portion 300 may be of a belt type rather than a mesh type or a plurality of geometric figures. Further, the auxiliary electrode portion 300 may be a numeral or a symbol, a character or a pattern or other design.

In accordance with the shape of the auxiliary electrode portion 300, the light-emitting device 200 indicates an image, a character, or a number by using a light-emitting or non-light-emitting region of the light-emitting device 200.

The auxiliary electrode portion 300 is electrically connected to the first electrode portion 220 and is formed of a predetermined material having a relatively low non-resistance value as compared with the first electrode portion 220.

The auxiliary electrode portion 300 may be formed of a reflective material. In particular, the auxiliary electrode portion 300 may be made of, for example, lithium (Li), calcium, fluoridium/calcium (LiF/Ca), calcium, fluorinated lithium/aluminum (LiF/Al), A predetermined material of aluminum, silver, magnesium or gold is formed.

However, the invention is not limited thereto. Any material having a relatively high conductivity and capable of reflecting light than the first electrode portion 220 can be used for the auxiliary electrode portion 300.

The auxiliary electrode portion 300 in which various shapes are formed in the first electrode portion 200 can display a specific symbol or pattern, and can enhance aesthetics. At the same time, the auxiliary electrode portion 300 can contribute to current flow to the first electrode portion 220 to achieve overall uniformity.

In other words, the auxiliary electrode 300 compensates for a relatively low conductivity, and the brightness of the light emitted from the light-emitting portion 240 of the light-emitting device 200 is prevented from being completely uniform.

The transparent conductive material used by the first electrode portion 220 has a relatively high non-resistance as compared with metal.

Therefore, as the area of the first electrode portion 220 is larger, the current flowing to the first electrode portion 220 is more difficult to be completely uniform.

In other words, if the light-emitting portion 240 formed between the first electrode portion 220 and the second electrode portion 250 emits light without the auxiliary electrode portion 300, the light-emitting portion 240 corresponding to the edge of the first electrode portion 220 that emits relatively low luminance emits high luminance. The light, and the light-emitting portion 240 corresponding to the center of the first electrode portion 220 that supplies relatively low-intensity light by the resistor emits low-intensity light.

In particular, as the area of the first electrode portion 220 is enlarged, the overall brightness becomes more uniform.

The auxiliary electrode portion 300 is connected to each other in a plurality of directions.

The insulating portion 230 covers the auxiliary electrode portion 300 to avoid communication between the auxiliary electrode portion 300 and the second electrode portion 250.

For this reason, the insulating portion 230 appears corresponding to the appearance of the auxiliary electrode portion 300.

The "fifth diagram" indicates that the (+) voltage (the current supply device 100 to be described later, please refer to "21") is supplied to the first region 221 and the voltage (-) is supplied to the second region 222.

Fig. 21 is a plan view showing the current supply device used as the power supply unit.

The current supply device 100 includes a first power supply portion 111, a second power supply portion 112, a first power supply 120, a second power supply 130, a resistance tool 140, and an insulating frame 150.

The first power supply portion 111 supplies a first power source such as a (+) voltage to the first power supply 120.

The second power supply portion 112 supplies a second power source such as a (-) voltage to the second power supply 130.

The first power supply (121, 122: 120) includes a first power supply line 121 and a plurality of first connection pads 122. The first power supply line 121 is electrically connected to the first power supply unit 111, and branches off from the first power supply line 121. A plurality of first connection pads 122. As shown in "20th picture", the (+) voltage is supplied to the first connection pad 122.

The insulating frame (150a, 150b: 150) is formed in a thin plate shape, and the insulating frame includes a central portion 150a and a peripheral portion 150b. The central portion 150a is located at a central portion of the insulating frame, and the peripheral portion 150b is arranged along the central portion 150a.

The central portion 150a may be a polygon. In "Fig. 9," the central portion 150a is a moment. The peripheral portion 150b has a rectangular shape along the central portion 150a.

The central portion 150a is formed of a predetermined material which is the same as or different from the material used for the peripheral portion 150b. Further, the central portion 150a may also be a blank space. "9th drawing" shows that the central portion 150a is a blank space.

The first power supply lines 121 are arranged along the peripheral portion 150b and arranged thereon. For example, the first power supply line 121 is circular, elliptical or polygonal.

The "21st drawing" indicates that the first power supply line 121 is approximately rectangular. In "Fig. 9," the first power supply line 121 is formed in a closed pattern, and may be formed in a closed loop pattern.

The first connection pad 122 branches along the first power supply line 121. A plurality of first connection pads 122 are provided and they branch in the direction of the central portion 150a or in the opposite direction.

The "21st drawing" shows that the first connection pad 122 branches in the direction of the central portion 150a. One end of the first connection pad 122 protrudes from the peripheral portion 150b to extend toward the central portion 150a. One end of the first connection pad 122 is formed with a contact portion.

The second power supply portion (131, 132: 130) includes a second power supply line 131 and a plurality of connection pads 132. The second power supply line 131 is electrically connected to the second power supply unit 112, and the plurality of connection pads 132 are branched along the second power supply line 131.

As shown in "21", the (-) voltage is supplied to the second connection pad 132.

The second power supply lines 131 are arranged along the peripheral portion 150b and arranged thereon.

The second power supply line 131 is arranged along the first power supply line 121 and insulated from the first power supply line 121 through the peripheral portion 150b. The second power supply line 131 is circular, elliptical or polygonal.

The "21st drawing" indicates that the second power supply line 131 is approximately rectangular. "No. In Fig. 21, the second power supply line 131 is a closed figure and may be an open loop pattern.

The second power supply line 131 is arranged along the first power supply line 121 and arranged below it, and the peripheral portion 150b is located between the second power supply line 131 and the first power supply line 121. Since the second power supply line 131 overlaps with the first power supply line 121, a part of the second power supply line 131 is shown in FIG.

The second connection pad 132 branches along the second power supply line 131. A plurality of second connection pads 132 are provided, and the plurality of second connection pads 132 are branched in the direction of the central portion 150a or in the opposite direction.

The "21st drawing" shows that the second connection pad 132 branches in the direction of the central portion 150a. One end of each of the second connection pads 132 protrudes from the peripheral portion 150b to extend in the direction of the central portion 150a. One end of the second connection pad 132 is formed with a contact portion.

The first connection pads 122 and the second connection pads 132 are alternately arranged. The (+) voltage is supplied to the first connection pad 122, and the (-) voltage is supplied to the second connection pad 132 such that the (+) and (-) voltages are alternately supplied in a ring shape.

Fig. 22 is a cross-sectional view taken along the line H-H' in the current supply device shown in Fig. 21.

The peripheral portion 150b of the insulating frame 150 is located between the first power supply line 121 and the second power supply line 131.

The first coating layer 101 is located on the first power supply line 121 to protect the first power supply line 121. The second coating layer 102 is located below the second power supply line 131 to protect the second power supply line 131.

"Figure 23" shows the I-I' in the current supply device shown in Figure 9. A cross-sectional view of the line.

The peripheral portion 150b of the insulating frame 150 is located between the first power supply line 121 and the second power supply line 131.

The through hole 151 is formed in the peripheral portion 150b, and the through hole 151 is an extended path connecting the first connection pads 122 of the resistance tool 140.

The first connection pad 122 extends along the bottom of the insulating frame 150 via the through hole 151 formed in the peripheral portion 150b.

The first coating layer 101 is located on the first power supply line 121 to protect the first power supply line 121. The second coating layer 102 is located below the second power supply line 131 to protect the second power supply line 131.

The second coating layer 102 extends shorter than the first coating layer 101 and the peripheral portion 150b to expose the bottom surface of the first connection pad 122.

Figure 24 is a cross-sectional view taken along the line J-J in the current supply device shown in Figure 21.

The peripheral portion 150b of the insulating frame 150 is located between the first power supply line 121 and the second power supply line 131.

The second connection pad 132 is connected to the second power supply line 131, and current is supplied from the second power supply line 131 to the second connection pad 132.

The first coating layer 101 is located on the first power supply line 121 to protect the first power supply line 121.

The second coating layer 102 is located below the second power supply line 131 to protect the second power supply line 131. The second coating layer 102 is shorter than the first coating layer 101 and the peripheral portion 150b to expose the bottom surface of the second connection pad.

As described above, in the current supply device 100 of the embodiment of the present invention, the first connection pad 122 for supplying (+) voltage and the second connection pad 132 for supplying (-) voltage are alternately formed along the peripheral portion 150b of the insulating frame 150. Therefore, the simple structure realized by the current supply device of the embodiment of the present invention can alternately supply the (+) and (-) voltages.

The "fifth diagram" shows the current supply device 100 placed on the first electrode portion 220.

In this example, the first connection pad 122 is placed to connect the first power supply line 121 in the first region 221 of the first electrode portion 220. In this example, the second connection pad 132 connecting the second power supply line 131 is placed in the second region 222 of the first electrode portion 220.

Therefore, the (+) voltage is applied to the first region 221, and the (-) voltage is applied to the second region 222.

The "Fig. 26" is an example of an auxiliary electrode portion formed in the light-emitting device of the embodiment of the present invention.

Referring to FIG. 26, the auxiliary electrode unit 300 provided in the light-emitting device according to the embodiment of the present invention includes a power receiving unit 310, a wiring portion 320, and a sensing resistor portion 340.

The power receiving unit 310 is connected to the transparent electrode, and the power receiving unit 310 is configured to transmit the power supplied from the external power source to the wiring unit 320.

Further, as shown in "FIG. 26", at least one sensing resistor portion 340 is formed in the power receiving portion 310. This power receiving portion 310 forms a closed square, approximately parallel to each side of the transparent electrode and spaced from each side.

Specifically, the power receiving section 310 is composed of first to fourth power receiving lines 311 (311a to 311d). The first power receiving line 311a and the third power receiving line 311c are formed in parallel on the transparent electrode, and the second power receiving line 311b and the fourth power receiving line 311d It is also formed in parallel on the transparent electrode. The two long end portions of each of the power receiving lines 311 are physically connected to the two long end portions of the adjacent power receiving lines.

Further, as shown in the drawing, the power receiving line 311 is formed with a convex portion 331 and a concave portion 332. These projections 331 and the recessed portions 332 are alternately formed, facing the side faces of the transparent electrodes, in other words, on the side of the power receiving line in the non-wiring area.

The protruding portion 331 formed in the power receiving portion 310 and the recess portion 332 are connected to the power receiving portion 310 to the external power supply line. The protruding portion 331 is directly connected to the power supply line of the first power source together with the transparent electrode.

In this case, the recessed portion 332 is for connecting an external power supply line or not forming a projection and a recess. However, embodiments of the invention are not limited thereto.

It is assumed that the projection 331 is directly connected to the first power source to the power supply line, wherein the first power source is a main-(+) voltage, which will be described below.

Further, the power receiving portion 310 is formed of a predetermined metal material having a relatively high conductivity, such as gold or silver, and the power receiving portion 310 is formed on the transparent electrode through a photoresist or a printing process. .

The wiring portion 320 is formed in a grid form in the inner region 415 in which the power receiving portion 310 is closed to connect the power receiving portion 310.

This wiring portion 320 is employed to uniformly transfer the first power source supplied via the power receiving portion 310 to the entire region of the transparent electrode.

The wiring portion 320 includes a first wiring 321 for connecting the first power receiving line 311a and the third power receiving line 311c, and a second wiring 322 for connecting the second power receiving line 311b to each other. And the fourth power receiving line 311d. The first wiring 321 and the second wiring 322 are physically connected to each other at an intersection.

In this case, "26" indicates that the wiring portion 320 is formed in the inner region 415 by a vertical line (first wiring) and a horizontal line (second wiring) in a grid pattern. However, the embodiments of the present invention are not limited thereto, and may be formed in various forms.

In addition, the wiring portion 320 together with the sensing resistance portion 340 can also be used as a measurement variable of the circuit portion. Specifically, a predetermined portion of the wiring portion 320 arranged between each of the sensing resistors 341a to 343b of the sensing resistor portion 340 together with the sensing resistors 341a to 343b is equal to one measurement variable for controlling the circuit portion.

The following will be described in detail in conjunction with another drawing.

The sensing resistance portion 340 is formed in the power receiving portion 310, and the sensing resistance portion 340 serves as a terminal to connect the circuit portion. For example, the sensing resistor portion 340 is used to provide a measurement variable such as a resistance value.

In particular, the control unit solves the electrical balance by measuring the resistance value of the sensing resistor portion 340 and the resistance, current, and voltage of the wiring portion 320 connected to the sensing resistors 341a to 343b to each other (the power balance is solved according to an embodiment of the present invention, The balance includes electric field, potential, charge density, voltage, and power, all of which are referred to as "electrical balances"). The control unit completes the control according to the electrical balance of the wiring portion 320 to control the brightness of the panel to be uniform.

The method of using the control portion of the control and the sense resistor will be described in detail below.

To this end, the sensing resistor portion 340 includes one or more sensing resistors 341a to 343b, each of which is formed on a predetermined region of the power receiving portion 310, and is connected to a desired region to measure the shortest distance. Electrical characteristics.

In other words, "26th figure" indicates the first to third pairs of sense resistors. The circuit portion connecting each part of the sensing resistor detects the electrical characteristics of a region near the imaginary line of the pair of sensing resistors 341a-343b at the shortest distance to reflect that the detected electrical characteristics are under control In the system.

In particular, the control unit controls the driving of the panel by detecting the temperature of the panel or the current flowing to the panel. In this case, the control unit uses a preset resistor to detect current or temperature.

The preset resistance may be a value of the sense resistors 341a-343b or may be a sum of the sense resistor pair, the sense resistor pair of the transparent electrode between the two, and the auxiliary resistor pair 300. This will be described in detail below in conjunction with an example of the control unit.

The panel control realized by the preset resistor can be completed by independent operation of the circuit portions connected to the sense resistors 341a to 343b, or can be completed by the connection operation of the circuit portions connected to the sense resistors 341a to 343b.

The control unit is connected to one or each pair of sensing resistors of the pair of sensing resistors.

The circuit portions connected to the sense resistor pair respectively contain different circuit dies and operating characteristics. However, embodiments of the invention are not limited thereto.

In addition, the set resistance represents the sum of the resistance value of the single sense resistor or the sense resistor pair and the equivalent resistance value. However, it may also be considered as a single resistor in circuit conversion, as will be described below, assuming that the preset resistance is a single resistor.

Therefore, the pair of sensing resistors are formed on the power receiving portion 310 such that the distance between the sensing resistors constituting the pair is the shortest.

Specifically, as shown in "Fig. 26", the sensing resistor is formed in the first power receiving line 311a and the third power receiving line 311c, and the distance between the power receiving lines 311 is the shortest. In this case, the embodiment of the present invention does not limit the position of the sensing resistor at the first power receiving line 311a and the third power receiving line 311c.

The sensing resistor is formed on the second power receiving line 311b and the fourth power receiving line 311d. In this case, the measured value may be incorrect.

As shown in FIG. 26, the sensing resistor portion 340 is formed in the protruding portion 331 of the power receiving portion 310, and the appearance of the protruding portion 331a at the sensing resistors 341a to 343b and other protruding portions are formed. The appearance of the 331 is different.

"27th picture" is an enlarged view of 〞K〞 shown in "26th picture", and "28th picture" is a schematic diagram of an example of connecting circuit parts. In addition, "38A", "38B" and "38C" are other examples of types and configurations of sensing resistors.

Please refer to "27th", "28th", "38A", "38B" and "38C", wherein the convex portion 331a formed with the sensing resistor 342 has a different appearance from the other convex portions. The appearance of the outlet 331. The respective appearances of the other projections 331 are formed such that the width of the power receiving line 311 is wider.

In contrast, the protrusion 331a formed with the sensing resistor 342 includes a first extension 333 and a second extension 334.

The first extension portion 333 extends to one side of the panel, and the second extension portion 334 extends from the longitudinal end portion of the first extension portion 333 and is parallel to the power receiving line 311. The first extension 333 and the second extension 334 are physically and continuously connected to each other.

The electrode exposure portion (or a space, 335) is formed between the first extension portion 333 and the second extension portion 334 and the power receiving portion, unlike the other protrusion portions 331. Further, the region of the power receiving line 331 parallel to the second extension portion 334 has a narrow line width compared to other regions of the power receiving line 311.

Meanwhile, as shown in the drawing, the longitudinal end portion of the sensing resistor 342 is formed in the electrode exposure portion 335. In addition, such as "Letter 38A", "Letter 38B" and "Letter 38C" As shown, the type and number of sense resistors 342 are variable.

"38A", "38B" and "38C" indicate one example of the sense resistor 342. Various types of sense resistors 342 can be provided in accordance with the resistance values required for the sense resistor 342 and the type of connection of the external circuit portion. The embodiments of the present invention are not limited to the examples shown in the drawings.

In the meantime, the "28th drawing" is a power supply line 381 and a signal line 382 for connecting the circuit portion. As shown in "FIG. 28", the power receiving unit 310 connects the power supply line through the power supply line 381 or a predetermined pattern.

Further, the protruding portion 331a and the sensing resistor 342a are connected to each other through the signal line 382. Although not shown in the drawings, the circuit portion is connected to the sensing resistor 342 by a chip on board (COB) method, which is not limited thereto.

"Thirty-fifth diagram" is a schematic diagram showing an example in which the current control unit is an external circuit unit. The "Fig. 31" is a schematic diagram showing an example of an equivalent circuit of the resistance of the sensing circuit and the panel to indicate the operation of the circuit portion generated by the sensing resistor. Fig. 32 is a view showing an example of a control unit of the first embodiment in which a current is controlled by a sense resistor.

Please refer to "30th drawing", "31st drawing" and "32th drawing". The current control unit 350 provided in the control unit of the embodiment includes a regulator-mirror circuit 391, a current control circuit 392, and a reference voltage. Supply circuit 393. A preset resistance (RT) is connected to the calibration mirror circuit 391.

Further, the current control unit 350 further includes a low voltage protection circuit 395 and a shutdown delay circuit 394.

Embodiments of the present invention control the flow of current flowing near the shortest distance between pairs of sense resistors to uniformly maintain brightness while operating the panel.

Therefore, the current control unit 350 shown in Fig. 30 connects the sensing resistors 341a to 343b as external circuit portions. The current control unit 350 controls the current flowing to the panel through a set value (RSET) to maintain uniformity.

In this case, the set value (RSET) is determined by the setting resistor (RT) connected between the ground terminal (GND) and the input terminal of the set value (RSET). The set resistance (RT) is operated as a current source for the calibration mirror circuit 391. This current source enables calibration mirror circuit 391 to control current control circuit 352 to control the current flow to the panel.

Therefore, the current control section 350 connects one of each of the sense resistor pairs.

Such a current control unit 350 includes a low voltage protection circuit 395, a shutdown delay circuit 394, a reference voltage supply circuit 393, a calibration mirror circuit 391, and a current control circuit 392.

The low voltage protection circuit 395 is supplied with a panel input voltage (VIN). When the panel input voltage (VIN) is the operation limit voltage or lower, the low voltage protection circuit 395 stops the panel by controlling the current control circuit 392. operation.

In addition, in response to a request to turn off delay circuit 394, low voltage protection circuit 395 controls this current control circuit 392 to stop the operation of the panel. To this end, the low voltage protection circuit 395 is connected to a panel power supply unit (not shown) to supply the panel input voltage (VIN), and the panel input voltage (VIN) is supplied to the reference voltage supply circuit 393 and the calibration mirror circuit 391. At this time, the low voltage protection circuit 395 is connected to the current control circuit 392.

The off delay circuit 394 determines the interruption of the externally supplied control signal (EN/PWM). When the supply of the control signal (En/PWM) is interrupted, the shutdown delay circuit 394 requests the low voltage protection circuit 395 to stop the panel operation.

The reference voltage supply circuit 393 supplies a reference voltage to the calibration mirror circuit 391 to control the current control circuit 392. To this end, the reference voltage supply circuit 393 is supplied with a panel input voltage (VIN) from the low voltage protection circuit 395.

The calibration mirror circuit 391 controls the current control circuit 392 in accordance with the reference voltage supplied from the set resistance (RT) and the reference voltage supply circuit 393.

To this end, the calibration mirror circuit 391 is connected to a set resistor (RT), a reference voltage supply circuit 393, and a current control circuit 392.

As the resistance value of the set resistance becomes larger, the calibration mirror circuit 391 controls the amount of current flowing into the panel to decrease. When the resistance value of the set resistance (RT) is fixed, the calibration mirror circuit 391 controls the current control circuit 392 to supply a conventional current to the panel.

The current control circuit 392 is operated in accordance with at least one of the external control signal (EN/PWM), the low voltage protection circuit 395, and the calibration mirror circuit 391. A current control circuit 392 is employed to control the current flowing in the panel. To this end, the current control circuit 392 is connected between the panel and the second power source (or sub-(-) voltage or ground terminal GND).

A current control circuit 392 is employed to provide a reference value for the set resistance (RT) for calibrating the current control of the mirror circuit 391. The low voltage protection circuit 395 and the shutdown delay circuit 394 can be omitted from the components of the current control unit.

In this case, the set resistance (RT) is determined by the sense resistor value or the sense resistor and the wiring resistance (R: R1 to R3).

In particular, in "31st diagram", RS11, RS12, RS21, RS22, RS31, and RS32 are resistance values of the sensing resistors 341a to 343b, respectively. In addition, R1 to R3 are equivalent resistances of the shortest distance drawn by the sense resistor.

In this case, the set resistance (RT) may be a resistance value of the sense resistors 341a to 343b connected to the set value input terminal or a resistance value of the resistor set (349: 349a to 349c). In particular, when the current control unit 350 is connected to the first sensing resistor 341a of the first sensing resistor pair, the value of the setting resistor is the resistance value of the first sensing resistor 341a or the first sensing resistor 341a, the second sensing. The sum of the resistor 341b and the first wiring resistance R1.

The following will be described in detail in conjunction with "32". The transparent electrode and the auxiliary electrode portion 300 are equivalent to each other by a resistance having a different resistance value.

This is because the transparent electrode is used as a resistance element, and the flow of current is irregular.

The sum of the current flowing between the power supply (VCC) and the ground terminal (GND) in the equivalent circuit is the same at the power supply (VCC) and the ground terminal (GND), and is different at the measurement points S1, S2, and S3. Specifically, the sum of the currents I1, I2, and I3 flowing along the imaginary line are different from each other, wherein the imaginary line is drawn along S1-S1', S2-S2', and S3-S3'. This different sum of I1, I2 and I3 results in different brightness of the panel. According to an embodiment of the present invention, the values of the currents I1, I2, and I3 are controlled to be uniform by the sense resistor and current control section 350, thereby reducing the luminance difference of the panel.

A current control unit 350 is provided in each of the first to third resistance sets 349 corresponding to S1-S1', S2-S2', and S3-S3'. By using a set resistor (RT), the current control unit 350 connected to each resistor set 349 detects the current flowing to each resistor set 349, and the current control unit 350 can control the current flowing to each resistor set 349 (I1). To I3).

In other words, the current control section 350 controls the resistance set 349 in which more current flows to less currents (I1 to I3) and the resistance set 349 which controls less current flow to the excess currents (I1 to I3).

In particular, when the current detected by the set resistance (RT) increases, the current control circuit 392 operates to reduce the amount of current flowing to the panel. When the detected current is reduced, current control circuit 392 operates to increase the current flow to the panel.

In particular, the current control portion 350 connected to each resistor set 349 independently controls the current flowing into each of the resistor sets 349 to maintain the brightness of the imaginary equivalent region to which each resistor set 349 belongs. Therefore, the brightness of the entire panel can be uniformly controlled. Therefore, by controlling the amount of current flowing to the top surface of the panel, the brightness difference of the panel can be reduced and the brightness uniformity can be enhanced.

To this end, the value of the set resistance (RT) in the current control unit 350 is defined, and the equivalent resistance value and the pair of the wiring portions 320 that connect the pair of sense resistor values (RS11-RS12, RS21-RS22, and RS31-RS32) are connected. The sum of the resistances 341a to 343b is sensed. Alternatively, the set resistance (RT) is a value (RS11, RS12, RS21, RS22, RS31, and RS32) of the sense resistor 34 of the current control unit 350.

In other words, three sets of current control units 350 are provided in the panel having the auxiliary electrode unit 300 shown in Fig. 26 . The set resistance value of each current control unit 350 is RS11, RS21, RS31 or RS12, RS22, RS32 or RS11+R1+RS12, RS21+R2+RS22, and RS31+R3+R32.

Fig. 33 is an example of a current control unit of the control unit of the second embodiment.

Please refer to "FIG. 33", the control part of the second embodiment includes a switching element (SW: SW1, SW2 and SW3), comparators (OP: OP1, OP2 and OP3) and constant current source (IR) (or constant voltage source).

The first input terminal of the comparator (OP) is connected to one end of the set resistor (RT), and the second input terminal of the comparator (OP) is connected to the constant current source IR. Furthermore, the output terminal of the comparator (OP) is connected to the base terminal (B) of the switching element.

The collector terminal (C) of the switching element is connected to the output terminal of the panel (EL), and the base terminal (B) is connected to the output terminal of the comparator (OP). The emitter terminal (E) is connected to the ground terminal (GND). In this case, the panel (EL) can be understood as a general term for the first electrode portion, the second electrode portion, the auxiliary electrode portion, and the light-emitting portion, and one of them can complete the connection. In addition, this point is also applied to the following description.

One end of the set resistor (RT) is connected to the input terminal of the comparator (OP), and the other end of the set resistor (RT) is connected to the collector terminal (C) of the output terminal and the panel (EL).

In particular, the current (IRT) flowing via the set resistance (RT) is the first input of the comparator (OP), and the reference current (ir) supplied by the constant current source (IR) is the second input of the comparator (OP). The comparator (OP) compares the first input with the second input, and the comparator (OP) controls the switching element according to the comparison result such that currents (I1, I2, and I3) flow along each equivalent region.

As described above, the current control portion of the second embodiment compares the current applied to the set resistance (RT) with the current of the constant current source, and controls the switching element in accordance with the comparison value. Therefore, the amount of current flowing through the switching element and the current applied to the auxiliary electrode portion 300 can be controlled.

Fig. 34 is a view showing an example of the current control unit of the third embodiment provided in the control unit for controlling the current based on the temperature.

Please refer to "FIG. 34". The current control unit of the third embodiment includes a first resistor (RA), a set resistor (RT), a comparator (OP4), a constant voltage source (VR), and a switching element (SWM).

The current control portion using the temperature is configured with a resistor having a variable value based on the temperature to control the current supplied to the panel. Therefore, the brightness of the panel can be controlled by controlling the current supplied to the panel.

To this end, the current control unit using the temperature includes a first resistor (RA), a set resistor (RT) for each equivalent region, a comparator (OP4), a constant voltage source (VR), and a switching element (SWM). .

One end of the first resistor (RA) is connected to the power source (VCC), and the other end of the first resistor (RA) is connected to one end of the set resistor (RT) and the input end of the comparator (OP). In this case, the first resistor (RA) and the end of the set resistor are input to the sub- (-) input of the comparator (OP). However, embodiments of the invention are not limited thereto.

One end of the set resistor (RT) is connected to the ground terminal (GND), and the other end of the set resistor (RT) is connected to the other end of the first resistor (RA) and the input end of the comparator (OP). In addition, the other input of the comparator (OP), such as the main (+) input terminal, is connected to the (+) polarity of the constant voltage source (VR). The output terminal of the comparator (OP) is connected to the gate terminal of the switching element (SWM).

The comparator (OP) compares the voltages of the two opposite end voltages of the set resistance (RT) with the voltage of the constant voltage source (VR), and the comparator (OP) controls the current flowing in the switching element (SWM) according to the comparison result. The current of the control panel (EL) flows.

The gate terminal (G) of the switching element (SWM) is connected to the output terminal of the comparator (OP), and the source terminal (S) of the switching element (SWM) is connected to the ground. Switching element (SWM) The bungee terminal (D) is connected to the output terminal of the panel.

Similar to the current circuit described above, the current control unit is also coupled to each resistor set to control the current (I1 to I3) of each of the set resistors. Therefore, the current control unit can control the brightness of the panel.

Fig. 35 is a view showing a current control unit having a protection circuit of the fourth embodiment provided in the control unit.

Please refer to "Fig. 35". The protection circuit includes a set resistor (RT), a second resistor, a comparator (OP), and a switching element (SWM).

One end of the set resistor (RT) is connected to the power supply (VCC) together with the collector terminal of the switching element. The other end of the set resistor (RT) is connected to the input terminal of the panel (EL) and one end of the second resistor (RR).

One end of the second resistor (RR) is connected to the input terminal of the panel (EL) and the set resistor (RT), and the other end of the second resistor (RR) is connected to the first input terminal of the comparator (OP).

The collector terminal (C) of the switching element (SWM) is connected to the power supply (VCC), and the base terminal (B) is connected to the output terminal of the comparator. The emitter terminal (E) returns to the ground terminal (GND) and the second input terminal of the comparator (OP). The comparator compares the current of the returned emitter terminal (E) with the current that has passed the set resistance (RT), and the comparator controls the switching element (SWM) according to the comparison result.

The protection circuit prevents the panel (EL), in particular the illumination portion, from being short-circuited, over-voltages or over-currents.

The "figure 36" shows the insulating portion 230 arranged on the first electrode portion 220.

For example, the insulating portion 230 is formed in a frame shape and has a closed space.

In addition, the insulating portion 230 includes a non-uniform pattern having a shape along its outer periphery A plurality of protrusions 231 and recesses 232 are formed.

The insulating portion 230 is formed by applying a photoresist liquid.

The protruding portion of the insulating portion 230 is located on the first region 221 of the first electrode portion 220 to insulate the first electrode portion 220 and the second electrode portion 250 in the first region 221 .

The insulating portion 230 includes a first insulating portion 233 that covers the power receiving portion 310 of the auxiliary electrode portion 300 to insulate the power receiving portion 310, and a second insulating portion 234 that covers the wiring portion of the auxiliary electrode 300. 320 is insulated from the wiring portion 320.

The first insulating portion 233 is formed in a frame shape corresponding to the shape of the power receiving portion 310, and the second insulating portion 234 is formed in a wiring shape corresponding to the shape of the wiring portion 320.

In this case, the thickness of the first insulating portion 233 and the thickness of the second insulating portion 234 are respectively larger than the thickness of the power receiving portion 310 and the thickness of the wiring portion 320. This is because complete insulation must be achieved.

The light-emitting portion 240 is located on the first electrode portion 220 (refer to "3rd view" and "figure 5"), the auxiliary electrode portion 300 (refer to "10th figure"), and the insulating portion 230.

The light-emitting portion 240 partially overlaps the insulating portion 230 and is not placed in the second region 222 (refer to "Fig. 3" and "Fig. 4").

For this reason, the outer periphery of the light-emitting portion 240 is arranged so as not to extend beyond the outer periphery of the insulating portion 230.

The light emitting portion 240 includes a red light emitting material, a green light emitting material, or a blue light emitting material.

The light-emitting portion 240 is formed of a low molecular organic material or a high molecular organic material, and the light-emitting portion 240 includes a light-emitting layer, and completes light emission by recombination of electron-hole pairs. In addition, the light emitting portion 240 further includes at least one of a hole injection layer, an electron injection layer, a hole transport layer, and an electron transport layer.

The second electrode portion 250 is formed on the light emitting portion 240. In the first region 221, the second electrode portion 250 is laminated on the insulating portion 230 without exceeding the protruding portion 231 of the insulating portion 230. In the second region 222, the second electrode portion 250 is laminated on the first electrode portion 220 beyond the insulating portion 230.

The second electrode portion 250 is formed on the light emitting portion 240.

In the first region 221 (refer to "3" and "5"), the outermost edge portion of the second electrode portion 250 is laminated on the insulating portion 230 without exceeding the protruding portion 231 of the insulating portion 230. The outermost edge.

In the second region 222 (refer to "3" and "5"), the second electrode portion 250 is laminated on the first electrode portion 220 (refer to "3" and "5"). Exceeding the insulating portion 230.

The second electrode portion 250 may be formed of an opaque material such as calcium (Ca), barium (Ba), magnesium (Mg), silver (Ag), copper (Cu), aluminum (Al), or an alloy of these materials.

Further, the second electrode portion 250 may be formed of a transparent material such as indium tin oxide (ITO) or indium zinc oxide (IZO). For example, the second electrode portion 250 is formed of aluminum.

When the light emitting device completes one side of light emission, one of the first electrode portion 220 and the second electrode portion 250 is formed of a transparent electrode. When the light emitting device completes the light emission on both sides, both the first electrode portion 220 and the second electrode portion 250 are formed of transparent electrodes.

The second electrode portion 250 is formed on the light emitting portion 240.

In the first region 221, the second electrode portion 250 is laminated on the insulating portion 230, not exceeding The protruding portion 231 of the insulating portion 230 is taken out.

In the second region 222, the second electrode portion 250 is laminated on the first electrode portion 220 and extends beyond the insulating portion 230.

The second electrode portion 250 may be formed of an opaque material such as calcium (Ca), barium (Ba), magnesium (Mg), silver (Ag), copper (Cu), aluminum (Al), or an alloy of these materials.

Further, the second electrode portion 250 may be formed of a transparent material such as indium tin oxide (ITO) or indium zinc oxide (IZO). For example, the second electrode portion 250 is formed of aluminum.

Fig. 37 is a cross-sectional view taken along line L-L' shown in Fig. 20, and Fig. 38 is a cross-sectional view taken along line M-M' shown in Fig. 20.

Referring to "37th" and "38th", the auxiliary electrode portion 300 is arranged on the first electrode portion 220.

In this case, the width of the wiring portion 320 constituting the auxiliary electrode portion 300 is approximately 50 to 250 μm. Further, the interval between one of the wiring portions 320 of the auxiliary electrode 300 and the other wiring portion 320 is 300 to 600 μm.

If the interval between the wiring portions 320 is too narrow, the current density at the light-emitting portion 240 near the wiring portion 320 is too high, and the light-emitting portion 240 is overheated.

Therefore, if possible, the interval between the two wiring portions is larger than the width of the wiring portion.

The sensing resistor portion 341a protrudes on both sides of the auxiliary electrode portion 300, and is connected to a control portion (not shown).

In the meantime, the auxiliary electrode portion 300 is covered by the insulating portion 230. The insulating portion 230 serves to insulate the auxiliary electrode portion 300 and the second electrode portion 250 from each other.

The insulating portion 230 is formed of an inorganic material such as tantalum oxide or tantalum nitride. however, The embodiment of the present invention is not limited thereto, and the insulating portion 230 is formed of a plurality of inorganic materials or organic materials.

If the insulation between the auxiliary electrode portion 300 and the second electrode portion 250 can be ensured even without the insulating portion 230, the insulating portion 230 can be omitted.

For example, the light-emitting portion 240 is arranged between the auxiliary electrode portion 300 and the second electrode portion 250 to serve as an insulating portion.

In this case, the auxiliary insulating portion is not provided on the auxiliary electrode portion 300.

As shown in FIG. 37, the (+) voltage supplied to the first electrode portion 220 placed in the outer peripheral region of the light-emitting device 200 is transmitted to the first electrode portion 220 along the first electrode portion 220 placed inside. Light emitting unit 240.

The first electrode portion 220 to which the (+) voltage is supplied is the first region 221 (refer to "Fig. 3" and "Fig. 5").

In the first region 221 (refer to "3" and "5th"), the first electrode portion 220 contacts the light-emitting portion 240 and does not contact the second electrode portion 250.

This is because the insulating portion 230 is located between the first electrode portion 220 and the second electrode portion 250.

In the meantime, referring to "Fig. 38", the (-) voltage supplied to the first electrode portion 220 placed on the outer periphery of the light-emitting device is transmitted to the second electrode portion 250 contacting the first electrode portion 220.

The (-) voltage transmitted to the second electrode portion 250 is transmitted to the light emitting portion 240 contacting the second electrode portion 250.

In "38", the first electrode portion 220 at both ends is electrically isolated from the first electrode portion 220 located at the center.

As described in conjunction with "FIG. 3", the first electrode portion 220 corresponding to the boundary between the first region 221 and the second region 222 is removed along the line 220a to electrically isolate the first region 221 and the second region 222 from each other.

The insulating portion 230 is laminated on the region where the first electrode portion 220 is removed to enhance insulation.

As a result, in the "38th drawing", the first electrode portion 220 at both ends is the second region 222, and the first electrode portion 220 at the center portion is the first region 221. Therefore, the first region 221 and the second region 222 are electrically isolated from each other.

In the second region 222, the first electrode portion 220 contacts the second electrode portion 250 and does not contact the light emitting portion 240.

Providing (+) and (-) voltages transmitted to the first electrode portion 220 along the first electrode portion 220 and the second electrode portion 250, respectively, so that current flows along the first electrode portion 220, the light emitting portion 240, and the second electrode portion 250 flows.

Meanwhile, in "37th diagram" and "38th diagram", the current generated by the (+) voltage is transmitted along the auxiliary electrode portion 300, and this current can be transmitted from the outer peripheral region of the first electrode portion 220 to the center through the auxiliary electrode portion 300. Smoothly transmitted.

The distribution or transmission of the current performed by the auxiliary electrode portion 300 can considerably reduce the difference in the amount of current between the peripheral region and the central region of the first electrode portion 220.

Therefore, the luminance difference between the peripheral region and the central region in the light-emitting portion 240 can be remarkably reduced.

"Fig. 39" and "Fig. 40" show the structure for controlling the brightness at a specific area in the light-emitting device of the present invention.

"Power supply device 100 and panel shown in Figure 39 and Figure 40" The structure is the same as that of the above-described power supply device 100 and panel. Therefore, a detailed description thereof will be omitted.

A conductor 400 is provided on the panel shown in Fig. 39. The conductor 400 is provided opposite to the second electrode portion 250 and has a polarity opposite to that applied to the second electrode portion 250.

The conductors 400 are arranged on both sides of the center and the center of the panel, and are respectively spaced apart from the center of the panel by a predetermined distance.

In this case, one of the conductors arranged in the center of the panel is referred to as 400b, and the conductors arranged in the immediate vicinity of the panel are referred to as 400a and 400c.

The conductor 400 supplies a charge having a polarity opposite to that of the charge emitted by the second electrode portion 250, and is only used to enhance the brightness of the corresponding region of the region in which the conductor 400 is located, as will be described below.

In other words, the amount of current flowing along the center of the panel or immediately adjacent to the center of the panel is relatively small compared to the current flowing along the other regions, correspondingly causing deterioration in luminance. In order to avoid such luminance degradation and to reduce the entire luminance difference of the panel, the conductors 400 are arranged in a region where luminance degradation may occur.

The detailed operation of the conductor will be described below.

The control unit connects the first power supply unit 111 and the second power supply unit 112 to control the power they supply.

Further, as described above, the control section even connects the sensing resistor 341a to measure the current applied to the region corresponding to the position where the sensing resistor 341a is connected (the center of the panel or the side immediately adjacent to the center).

The control unit even connects the conductor 400, and the control unit guides the first power supply unit 111 and part of the power supplied by the second power supply unit 112.

In other words, when the power supplied to the second electrode portion 250 is a negative voltage, a positive voltage is supplied to the conductor 400. When the power supplied to the second electrode portion 250 is a positive voltage, a negative voltage is supplied to the conductor 400.

When it is determined by the control of the control section 350 that the current applied to a specific area (for example, the center of the panel) is lower than the preset reference, an additional voltage is supplied to the conductor 400 located in the corresponding area to minimize or avoid brightness with respect to other areas. difference.

As shown in FIG. 40, a cover member 270 is provided on the second electrode portion 250, and the conductor 400 is arranged on the cover member 270. The back surface of the conductor is exposed in the direction of the second electrode portion 250.

A blank space is formed between the cover member 270 and the second electrode portion 250, and a seal assembly 280 is arranged in the space.

Conductor 400 can have a predetermined appearance and volume. The conductor 400 is formed of a metal material such as zinc (Zn), indium (In), cadmium (Cd), gallium (Ga), nickel (Ni), iron (Fe), cobalt (Co), tungsten (W), titanium. (Ti), chromium (Cr), molybdenum (Mo), gold, (Au), platinum (Pt), calcium (Ca), barium (Ba), magnesium (Mg), silver (Ag), copper (Cu), Aluminum (Al) or an alloy of these materials.

Further, the conductor 400 is formed of, for example, indium tin oxide (ITO) or indium zinc oxide (IZO).

When the negative voltage is connected to the second electrode portion 250, the electrons (e-) emitted from the second electrode portion 250 encounter a hole luminescence at the illuminant after passing through the electron injection layer and the electron transport layer.

30% of the electrons are depleted when passing through the hole transport layer and the hole injection layer, they are unable to encounter holes in the illuminator and contribute to luminescence.

According to this embodiment, the conductor 400 is placed adjacent to the second electrode portion 250, and the conductor 400 can reduce the loss of electrons that cannot contribute to light emission.

The conductor 400 is charged through a polarity opposite to the polarity possessed by the second electrode portion 250. Therefore, electrons depleted by the hole transport layer and the hole injection layer are trapped in the region adjacent to the conductor 400, and the possibility of electrons reacted after encountering the hole at the illuminant is improved.

As a result, the region in which the conductor 400 is placed in the embodiment of the present invention can enhance the luminous efficiency of the light emitting device.

In particular, when the conductor 400 is placed at the center of the panel whose brightness may be deteriorated, the brightness of the center can be enhanced. The conductors 400 are arranged at one or more locations where enhanced brightness is desired, even not placed at the center of the organic light-emitting device.

The operation principle of the light-emitting device including the current control portion according to the embodiment of the present invention will be described below, in which a current control portion is provided in the control portion.

The current control unit 350 of the first embodiment shown in FIG. 30, FIG. 31, and FIG. 32 maintains a uniform current flow for each set of resistance sets 349 according to a preset set resistance (RT) value. The auxiliary electrode portion controls only the current value of the entire panel to be uniform.

In particular, even when the current flowing into the auxiliary electrode temporarily increases, the set resistance (RT) and the current control circuit 332 control the current having a normal value to flow to the auxiliary electrode portion.

Therefore, by uniformly controlling the amount of current flowing to the front surface of the panel, the current control portion 350 can reduce the luminance difference of the panel and only enhance the luminance uniformity.

When the power source supplies a constant current, the current control unit of the second embodiment shown in FIG. 33 controls the switching element (SW) to supply a predetermined amount of current to the auxiliary electrode. Department 300.

When the current supplied by the power supply increases, the current control unit receives the feedback via the set resistance (RT) and reduces the current flow. When the current is lowered, the current control portion increases the amount of current flowing to a set of resistances in which a small amount of current flows, and controls a predetermined amount of current to constantly flow through the set resistance (RT).

In particular, a current control section is provided for each resistor set, reducing the amount of current flowing to a set of resistors flowing a large amount of current, and increasing the amount of current flowing to a set of resistors through which a small amount of current flows. Therefore, the amount of current flowing in each area of the control panel is uniform.

As described above, the current control unit of the third embodiment shown in Fig. 34 is variable in accordance with the temperature control setting resistance (RT). The switching element can be controlled by comparing the voltage applied to the set resistor (RT) to the voltage of the constant voltage source (VR). Therefore, the current flowing through the switching element can be controlled.

As a result, when the temperature of the set resistance (RT) is increased by the overcurrent supplied to the panel or the auxiliary electrode 300, the current control portion of the third embodiment lowers the temperature by lowering the current flowing through the switching element (SWM).

When the temperature of the set resistance (RT) is lowered, the current control section increases the current flowing through the switching element (SWM).

The current control portion uses a current flow control method to keep the current applied to the auxiliary electrode portion 300 constant and uniform while maintaining the temperature of the panel or the auxiliary electrode portion 300 uniform.

The current control unit of the fourth embodiment shown in Fig. 35 includes a short circuit protection circuit. When an overvoltage or overcurrent or short circuit current is supplied to the panel, the short circuit protection circuit controls the switching element (SWM) to form a bypass (B). Therefore, over current or short circuit The current is branched to prevent the panel (EL) from being degraded by overcurrent or short circuit current.

As described above, when the current flows through the set resistance, the current control portion of the fourth embodiment minimizes the current passing through the switching element (SWM) before the current flows to the panel or the auxiliary electrode portion 300.

In contrast, when the voltage or current applied to the set resistance increases, the protection circuit causes current to flow to the switching element and accordingly forms a bypass. Thereafter, the protection circuit branches this overcurrent via the bypass.

When the voltage or current applied to the set resistance (RT) is lowered, the protection circuit reduces the current flowing through the switching element and controls the current to be supplied from the power source to the panel or the auxiliary electrode portion 300.

The control unit (current control unit 350) of the first to fourth embodiments is applied to the control units shown in "39th" and "40th".

In a state in which the sensing resistor is connected, the control unit 350 measures the current applied to one of the wiring portions for the wiring portion provided in the auxiliary electrode portion corresponding to the region in which the sensing resistor is arranged.

When it is determined according to the measurement result that the amount of current at the specific region is less than the preset reference, the control portion supplies a negative or positive power source to one of the conductors corresponding to the region.

In other words, when the second electrode portion 250 is connected to a negative voltage, the control portion supplies a positive voltage to the conductor 400. When the second electrode portion 250 is connected to a positive voltage, the control portion supplies a negative voltage to the conductor 400.

The conductors 400 are arranged in any area of the light-emitting device where brightness enhancement is required.

Further, when a plurality of conductors 400 are arranged, the voltages supplied to these conductors 400 are different from each other.

As described above, the conductors 400 of the present invention are spaced apart from each other on the second electrode portion 250, and have a polarity opposite to that of the voltage supplied to the second electrode portion 250, so that the luminance of the region of the array conductor 400 is transmitted through the electric field effect. increase.

Therefore, the conductors 400 are correspondingly arranged in the region of the light-emitting portion having deteriorated brightness. This simple method improves the uniformity of brightness.

In addition, the conductors 400 are arranged in a variety of orientations and forms in areas of the illumination device where brightness enhancement is desired. Even if the appearance of the light-emitting device is changed, the conductors 400 are still arranged at the desired position and the brightness uniformity can be easily and efficiently ensured.

When a plurality of conductors 400 are arranged, voltages or currents supplied to the conductors 400 are different from each other, and desired luminance characteristics can be achieved.

Although the present invention has been disclosed above in the foregoing embodiments, it is not intended to limit the invention. It is within the scope of the invention to be modified and modified without departing from the spirit and scope of the invention. In particular, various modifications and adaptations are possible in the component parts and/or arrangements of the subject combinations disclosed herein. Other methods of use will be apparent to those skilled in the art, in addition to the modification and modification of the component parts and/or arrangements.

10‧‧‧Organic lighting device

100‧‧‧current supply device

20‧‧‧Organic Light Department

200‧‧‧Lighting device

210‧‧‧Substrate

220‧‧‧First electrode section

Line 220a‧‧

221‧‧‧First District

222‧‧‧Second District

223‧‧‧Blank area

230‧‧‧Insulation

231‧‧‧Protruding

232‧‧‧Depression

233‧‧‧First insulation

234‧‧‧Second insulation

240‧‧‧Lighting Department

250‧‧‧Second electrode section

270‧‧‧Overlay components

280‧‧‧ Sealing components

100‧‧‧current supply device

101‧‧‧First coating

102‧‧‧Second coating

111‧‧‧First Power Supply Department

112‧‧‧Second Power Supply Department

120‧‧‧First power supply

121‧‧‧First power supply line

122‧‧‧First connection pad

122’‧‧‧First connection pad

130‧‧‧Second power supply

131‧‧‧Second power supply line

132‧‧‧Second connection pad

132’‧‧‧second connection pad

140, A, B, C‧‧‧ resistance tools

R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12‧‧‧ resistance

RS11, RS21, RS31, RS12, RS22, RS32‧‧‧ resistance values

150‧‧‧Insulation frame

150a‧‧‧Central Department

150b‧‧‧ peripherals

151‧‧‧through hole

1‧‧‧ objects

300‧‧‧Auxiliary electrode section

310‧‧‧Power Receiving Department

311a‧‧‧First power receiving line

311b‧‧‧second power receiving line

311c‧‧‧ third power receiving line

311d‧‧‧fourth power receiving line

311‧‧‧Power receiving line

320‧‧‧Wiring Department

321‧‧‧First wiring

322‧‧‧Second wiring

331‧‧‧ protruding parts

331a‧‧‧protrusion

332‧‧‧Depression

333‧‧‧First Extension

334‧‧‧Second extension

335‧‧‧Electrode exposure

340‧‧‧Sensing resistance section

341a, 341b, 342, 342a, 342b, 343a, 343b‧‧‧ sense resistor

349, 349a, 349b, 349c‧‧‧ resistance sets

350‧‧‧Control Department

392‧‧‧ Current Control Circuit

381‧‧‧Power supply line

382‧‧‧Signal line

391‧‧‧ calibrated mirror circuit

393‧‧‧reference voltage supply circuit

394‧‧‧ Turn off the delay circuit

395‧‧‧Low voltage protection circuit

400, 400a, 400b, 400c‧‧‧ conductor

415‧‧‧Internal area

S1, S2, S3, S1', S2', S3'‧‧‧ measuring points

I1, I2, I3, IRT‧‧‧ current

VIN‧‧‧ panel input voltage

EN/PWM‧‧‧ control signal

RSET‧‧‧ set value

RT‧‧‧Set resistor

GND‧‧‧ Grounding terminal

VCC‧‧‧ power supply

OP, OP1, OP2, OP3, OP4‧‧‧ comparator

SWM‧‧‧ switching components

SW, SW1, SW2, SW3‧‧‧ switching components

RA‧‧‧First resistance

RR‧‧‧second resistance

VR‧‧‧ Constant voltage source

IR‧‧‧ Constant current source

Ir‧‧‧reference current

EL‧‧‧ panel

C‧‧‧ Collector terminal

B‧‧‧ base terminal

E‧‧ ‧ emitter terminal

BB‧‧‧ Bypass

G‧‧‧Gate terminal

D‧‧‧汲极终端

S‧‧‧ source terminal

1 is a schematic view showing a pattern of positive voltage and negative voltage in a conventional light-emitting device; FIG. 2 is a schematic view showing a plurality of layers provided in a light-emitting device according to an embodiment of the present invention; 2 is a plan view of the first electrode portion of the light-emitting device; Fig. 4 is a plan view showing the insulating portion of the light-emitting device shown in Fig. 2; and Fig. 5 is a plan view showing the connection process between the first electrode portion and the power source shown in Fig. 3; A cross-sectional view taken along line A-A' of the light-emitting device shown in FIG. 2; and a cross-sectional view taken along line B-B' of the light-emitting device shown in FIG. Figure 8 is a schematic diagram showing the charge distribution of the (+) and (-) voltages; Figure 9 is a schematic plan view of the current supply device of the embodiment of the present invention; FIG. 9 is a cross-sectional view taken along line C-C' of the current supply device; FIG. 11 is a cross-sectional view taken along line DD' of the current supply device shown in FIG. 9; Fig. 12 is a cross-sectional view taken along line F-F' of the current supply device shown in Fig. 9; and Fig. 13 is a schematic view showing an example of using the current supply device shown in Fig. 9. Fig. 14 is a schematic view showing a current supply device according to another embodiment of the present invention; and Fig. 15 is a view showing a current supply device shown in Fig. 9 stacked in Fig. 5; A schematic plan view showing a state on the first electrode portion; and FIG. 16 is a schematic view showing a difference in luminance between the center and the edge of the light-emitting device in the test without the resistance tool arranged in the current supply device shown in FIG. 9; Figure 17 is a graph showing the percentage of the difference in brightness between the center and the edge in the test shown in Figure 16; Figure 18 is the brightness between the center and the edge of the illuminating device in the test of the aligning resistance tool. Difference, and the resistance value of the center and the different resistance values of the edge; Figure 19 is a schematic diagram showing the percentage difference of the brightness between the center and the edge in the test of Figure 18; Figure 20 is another example of the present invention. FIG. 21 is a plan view showing a power supply unit of the light-emitting device; FIG. 22 is a cross-sectional view taken along line H-H' shown in FIG. 21; The figure is a cross-sectional view taken along line I-I' shown in Fig. 21; the figure 24 is a cross-sectional view taken along line J-J' shown in Fig. 21; a schematic diagram of the power supply unit arranged on the first electrode; FIG. 26 is a schematic view of the present invention A schematic diagram of an example of an auxiliary electrode formed in the light-emitting device of the example; FIG. 27 is an enlarged schematic view of K shown in FIG. 18; and FIG. 28 is a schematic view showing an example of a connecting circuit portion; Figure 29B and Figure 29C show the type of sense resistor A schematic diagram of an example of a structure; FIG. 30 is a schematic diagram showing an example of a current control unit as an external circuit unit; and FIG. 31 is a schematic diagram showing an example of an equivalent circuit of a resistance of a sensing circuit and a panel, The operation of the circuit portion generated by the sensing resistor is shown; FIG. 32 is a schematic diagram showing an example of the control portion using the sense resistor control current of the first embodiment; and FIG. 33 is the second embodiment. A schematic diagram of an example of a current control unit of the control unit; FIG. 34 is a schematic diagram showing an example of a current control unit based on a temperature control current of the third embodiment; and FIG. 35 is a fourth example provided in the control unit. A schematic diagram of a current control unit having a protection circuit according to an embodiment; FIG. 36 is a schematic view showing an insulating portion, a light-emitting portion, and a second electrode provided in the light-emitting device; and FIG. 37 is a view along FIG. A cross-sectional view taken along line L-L'; Fig. 38 is a cross-sectional view taken along line M-M' shown in Fig. 21; and Fig. 39 is a light-emitting device in which a conductor is mounted Schematic diagram; and Figure 40 is shown along the 39th A cross-sectional view taken along the line N-N' shown in the figure.

200‧‧‧Lighting device

210‧‧‧Substrate

220‧‧‧First electrode section

221‧‧‧First District

222‧‧‧Second District

223‧‧‧Blank area

230‧‧‧Insulation

231‧‧‧Protruding

232‧‧‧Depression

240‧‧‧Lighting Department

250‧‧‧Second electrode section

Claims (8)

A light-emitting device comprising: a substrate; a first electrode portion provided on the substrate; a light-emitting portion provided in the first electrode portion, the light-emitting portion comprising an organic light-emitting material; and a second electrode Provided in the light emitting portion, wherein the first electrode portion and the second electrode portion provide a plurality of regions separated and insulated from each other in at least one of the plurality, and power sources including mutually different polarities are respectively supplied to the regions In order to suppress the difference in luminance generated in the light-emitting portion. The illuminating device of claim 1, wherein a first region and a second region insulated from each other alternately form the first electrode portion along a peripheral portion of the first electrode portion, and a first power source having A predetermined polarity is supplied to the first zone, and a second power source, having the opposite polarity, is supplied to the second zone. The illuminating device of claim 2, further comprising: an insulating portion arranged on the first electrode portion, wherein the first electrode portion in a boundary between the first region and the second interval is cleared, The insulating portion is placed on the boundary where the first electrode portion is removed. The illuminating device of claim 2, wherein the first power source is (+) polarity The second power source is (-) polarity, and when the first power source is (-) polarity, the second power source is (+) polarity. The illuminating device of claim 2, wherein at least one of the sides of the first electrode portion includes the first region and the second region. The illuminating device of claim 2, wherein the second regions are electrically isolated from each other. The illuminating device of claim 2, wherein one edge of the first electrode portion comprises a blank region in which the first and second regions are not arranged. The illuminating device of claim 7, wherein the same region of the first and second regions is arranged adjacent to the blank region.