TWI535087B - OLED lighting device - Google Patents

Description

OLED lighting device

The present invention relates to a lighting device, and more particularly to an OLED lighting device.

An OLED (Organic Light Emitting Diode) illumination panel is generally composed of two oppositely disposed glass plates and an OLED luminescent film layer sandwiched between the glass plates. Since the material of the glass plate is relatively fragile, Therefore, in the process of assembling the OLED lighting panel on a luminaire, care must be taken not to collide with the luminaire, even in the transportation process of the luminaire product equipped with the OLED lighting panel, the illuminating of the luminaire product makes the luminaire A collision occurs with the OLED lighting panel, and the transportation process is a continuous state. Therefore, the continuous collision between the luminaire and the OLED lighting panel may cause the OLED lighting panel to rupture.

Referring to FIG. 1 and FIG. 2, in order to avoid the risk of collision and rupture of the above OLED lighting panel, some manufacturers will install an OLED lighting panel 8 in a fully covered plastic frame for protection, but In this way, the plastic frame 9 increases the size, thickness and cost of the luminaire product in which the OLED lighting panel 8 is mounted.

Accordingly, it is an object of the present invention to provide a thinner and OLED lighting device with anti-collision protection.

Thus, the OLED lighting device of the present invention comprises an OLED lighting panel and at least one protective tape.

The OLED lighting panel is divided into a light emitting area and a peripheral area outside the light emitting area, and includes a transparent substrate, an organic light emitting unit, and a package board.

The light transmissive substrate has an inner plate surface and an outer plate surface disposed opposite to each other.

The organic light emitting unit is disposed on an inner surface of the transparent substrate.

The package board covers the organic light emitting unit and has an inner panel surface facing the organic light emitting unit and an outer panel surface disposed opposite to the inner panel surface.

The protective tape extends from the outer panel surface of the transparent substrate to the outer panel surface of the package board, and is coated and adhered to the peripheral side of the OLED illumination panel.

Preferably, the OLED lighting panel is rectangular. The number of protective tapes of the OLED lighting device is four, and the protective tapes are respectively wrapped at the four corners of the OLED lighting panel.

Preferably, the number of the protective tapes of the OLED lighting device is one, and the protective tape surrounds the circumferential side of the OLED lighting panel.

Preferably, the protective tape comprises a bonding surface adhered to the OLED lighting panel and a functional surface opposite to the bonding surface. The functional surface can be a rough surface and a micro-adhesive surface having a viscosity smaller than the adhesive surface.

Preferably, the protective tape has a thickness of between 5 μm and 1 mm.

The effect of the invention is that the protective tape is coated on the peripheral side of the OLED illumination panel, thereby avoiding the collision of the OLED illumination panel with the outside to generate a splitting situation, and the thickness of the protective tape is thin, so that the OLED illumination The panel is covered by the protective tape and has a small increase in size and thickness, thereby effectively maintaining the original thin design of the OLED lighting panel.

1‧‧‧Lighting

11‧‧‧Ontology

12‧‧‧Installation space

13‧‧‧Light hole

2‧‧‧OLED lighting panel

I‧‧‧Lighting area

II‧‧‧ surrounding area

21‧‧‧Transparent substrate

211‧‧‧ inner board

212‧‧‧Outer board

22‧‧‧Organic lighting unit

221‧‧‧First electrode layer

222‧‧‧Organic luminescent layer

223‧‧‧Second electrode layer

23‧‧‧Soft circuit board

24‧‧‧Package board

241‧‧‧ inner board

242‧‧‧Outer board

25‧‧‧Package

3‧‧‧Protection tape

31‧‧‧Adhesive surface

32‧‧‧ functional surface

The other features and advantages of the present invention will be apparent from the detailed description of the preferred embodiments of the accompanying drawings. FIG. 1 is an exploded perspective view showing an OLED lighting panel mounted in a plastic frame. 2 is a cross-sectional view showing the arrangement relationship between the OLED lighting panel and the plastic frame; FIG. 3 is a perspective view of an embodiment of the OLED lighting device of the present invention; and FIG. 4 is a cross-sectional view showing an OLED lighting panel of the embodiment; FIG. 5 is a cross-sectional view showing the embodiment mounted in a lamp; and FIG. 6 is a perspective view showing another embodiment of the OLED lighting device of the present invention.

Referring to FIG. 3, FIG. 4 and FIG. 5, an embodiment of the OLED lighting device of the present invention is applicable to a lamp 1. The lamp 1 includes a body 11 and a mounting space 12 inside the body 11 and an opening. The OLED illumination is disposed on the body 11 and communicates with the mounting space 12 The device comprises an OLED lighting panel 2 and a protective tape 3.

The OLED illumination panel 2 is divided into a light-emitting area I and a peripheral area II located outside the light-emitting area I, and includes a transparent substrate 21, an organic light-emitting unit 22, a flexible circuit board 23, a package board 24, and a Encapsulation glue 25. In this embodiment, the outer contour of the OLED illumination panel 2 is rectangular. However, the outer contour shape of the OLED lighting panel 2 is not limited to the above, and may be changed according to the design requirements of the lighting product.

The transparent substrate 21 has an inner plate surface 211 and an outer plate surface 212 disposed opposite to each other.

The organic light emitting unit 22 has a first electrode film layer 221, an organic light emitting film layer 222, and a second electrode film layer 223. The first electrode film layer 221 is disposed on the inner plate surface 211 of the transparent substrate 21 . The organic light emitting film layer 222 is covered and electrically connected to the first electrode film layer 221. The second electrode film layer 223 is covered and electrically connected to the organic light emitting film layer 222.

The flexible circuit board 23 is electrically connected to the organic light emitting unit 22 and extends outward.

The package board 24 covers the second electrode film layer 223 and has an inner surface 241 facing the organic light emitting unit 22 and an outer surface 242 disposed opposite to the inner surface 241.

The encapsulant 25 is connected between the inner surface 211 of the transparent substrate 21 and the inner surface 241 of the package board 24, and the encapsulant 25, the package board 24 and the transparent substrate 21 cooperate with the package. The organic light emitting unit 22 is packaged.

The organic light-emitting film layer 222 has a hole injection layer substantially in sequence from the first electrode film layer 221 toward the second electrode film layer 223. (hole injection layer), a hole transfer layer, an emissive layer, an electron transfer layer, and an electron injection layer. As is well known to those skilled in the art, the basic aspect of the organic light-emitting film layer 222 is as described above, and the detailed structure of the organic light-emitting film layer 222 is not the technical focus of the present invention, and details are not described herein. .

The transparent substrate 21 and the package board 24 are respectively selected from a flexible or non-flexible material, wherein the flexible material is made of a polymer material, and the polymer material may be selected from polyterephthalic acid. A combination of polyethylene terephthalate, polycarbonate, polyacrylic acid, and one of the foregoing, the non-flexible material may be selected from the group consisting of glass, quartz, or acrylic sheets.

In the present embodiment, the first electrode film layer 221 of the organic light emitting unit 22 is used as an anode, and the second electrode film layer 223 is used as a cathode. The first electrode film layer 221 and the second electrode film layer 223 may be made of a transparent conductive material (for example, ITO) or a highly conductive metal as needed.

The protective tape 3 extends from the outer surface 212 of the transparent substrate 21 to the outer surface 242 of the package board 24 , and is coated and adhered to the peripheral side of the OLED lighting panel 2 .

The protective tape 3 includes an adhesive surface 31 adhered to the OLED illumination panel 2 and a functional surface 32 opposite to the adhesive surface 31, and the protective tape 3 has a thickness of between 5 μm and 1 mm. The functional surface 32 can be a rough surface or a micro-adhesive surface having a viscosity smaller than the adhesive surface 31.

Referring to FIG. 5, an OLED lighting device of the present invention is mounted on the lamp The light-emitting area I of the OLED illumination panel 2 corresponds to the light-transmissive hole 13 of the luminaire 1 , and the transparent substrate 21 is adjacent to the light-transmissive hole 13 . The light emitted from the organic light-emitting unit 22 is transmitted through the transparent substrate 21 and is outwardly scattered through the transparent hole 13 , and the protective tape 3 is adhered to the outer surface 212 of the transparent substrate 21 . It is not exposed to the light transmission hole 13. In addition, the functional surface 32 of the protective tape 3 partially abuts against the body 11 of the lamp 1 .

Since the peripheral side portion of the OLED lighting panel 2 of the OLED lighting device of the present invention that is easily in contact with the outside is covered by the protective tape 3, it can be effectively used in the process of mounting the OLED lighting device in the lamp 1. The OLED lighting panel 2 is prevented from directly colliding with the body 11 of the luminaire 1 to cause a splitting situation. However, the functional surface 32 of the protective tape 3 abutting the body 11 of the lamp 1 can increase the friction or adhesion between the protective tape 3 and the body 11 of the lamp 1 , so that the OLED lighting panel 2 is more stably installed in the In the luminaire 1, the luminaire product equipped with the OLED illuminating device can effectively prevent the OLED illuminating device from moving relative to the luminaire 1 during the transportation shaking, and collide with each other to generate an abnormal sound or continuously collide with each other to generate a split case.

It is to be noted that, with reference to FIG. 6 , the protective tape 3 of the OLED lighting device of the present invention is not limited to the above, and the four protective tapes 3 can be respectively coated on the OLED. At the four corners where the lighting panel 2 is relatively weak, not only the same effect as described above but also the amount of the protective tape 3 can be reduced, thereby reducing the material cost.

In summary, the OLED illumination device of the present invention is coated on the peripheral side of the OLED illumination panel 2 by the protective tape 3, thereby preventing the OLED illumination panel 2 from colliding with the outside to cause a splitting situation, and the protective tape 2 The thinness of the OLED illumination panel 2 is reduced by the size and thickness of the OLED illumination panel 2, so that the original OLED illumination panel 2 is effectively thinned, so that the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

2‧‧‧OLED lighting panel

I‧‧‧Lighting area

II‧‧‧ surrounding area

21‧‧‧Transparent substrate

23‧‧‧Soft circuit board

24‧‧‧Package board

242‧‧‧Outer board

25‧‧‧Package

3‧‧‧Protection tape

Claims (6)

An OLED illumination device includes: an OLED illumination panel, which is divided into a light-emitting area and a peripheral area located outside the light-emitting area, and the OLED illumination panel comprises: a light-transmissive substrate having an inner plate surface and an outer surface disposed oppositely a surface of the inner surface of the transparent substrate And an outer surface of the OLED lighting panel; and the outer surface of the transparent substrate extends from the outer surface of the transparent substrate to the outer surface of the packaging board, and is coated and adhered to the periphery of the OLED lighting panel side. The OLED lighting device of claim 1, wherein the outer contour of the OLED lighting panel is rectangular. The OLED lighting device of claim 2, wherein the number of the protective tapes of the OLED lighting device is four, and the protective tapes are respectively wrapped at the four corners of the OLED lighting panel. The OLED lighting device of claim 1, wherein the number of protective tapes of the OLED lighting device is one, and the protective tape surrounds a peripheral side of the OLED lighting panel. The OLED lighting device of claim 1, wherein the protective adhesive The tape includes a bonding surface adhered to the OLED lighting panel and a functional surface opposite to the bonding surface, and the functional surface may be a rough surface and a micro-adhesive surface having a viscosity smaller than the adhesive surface. The OLED lighting device of claim 1, wherein the protective tape has a thickness of between 5 μm and 1 mm.