TWI618276B - Oled have prevent light leaking and use oled's sighting device - Google Patents

Abstract

An organic light emitting diode device for preventing edge leakage and a sight for using the same comprises a substrate, an organic light emitting diode, a metal layer and a package, wherein the substrate comprises a central region, a cavity region and an outer edge region, and the organic light emitting device The pole body is disposed on the substrate and located in the central region and generates light, the metal layer is disposed on the substrate and at least partially located at the outer edge region and the cavity region to cover the boundary, and the package comprises a cover body and a sidewall; wherein the metal layer is located at the boundary And between the substrate and the side wall of the package to avoid light leakage at the edge.

Description

Organic light-emitting diode device for preventing edge leakage and aiming using the same Element

The present invention relates to an organic light-emitting diode, and more particularly to an organic light-emitting diode for use in a sight and capable of preventing edge leakage.

The sight is a tool for assisting aiming. It is generally installed on items with launch and shooting characteristics in order to hit the target more accurately. When using the sight, the aim is to aim at the target by using the sight in the viewfinder. The early alignment was directly marked by the marking line in the viewing window, but such alignment would become illegible and observable at night or when there was insufficient light.

Later, in order to solve the above problems, a sight that uses a laser light projection to generate a center of gravity is developed, which projects the laser light to the developing member to generate a center of eccentricity, and uses an optical principle to make the center of gravity visible to the naked eye by reflection. However, the center of gravity generated by the laser light can be clearly displayed and seen when the light is insufficient, but in the case of sufficient light in the environment (such as sunlight), it is faded and becomes unclear due to external light interference. . Recently, due to the emergence and flourishing of the Organic Light-Emitting Diode, the above problems have been solved. The organic light-emitting diode has high contrast characteristics, and the brightness gradually increases with the advancement of technology. The organic light-emitting diode has been gradually applied to the field of optical sights because it can be clearly seen in the environment where the light is sufficient or not.

A structure of an organic light-emitting diode for use in an optical sight is disclosed in "ENCAPSULATION OF ORGANIC DEVICES" of US Pat. No. 8,552,644, which discloses an organic light-emitting diode device including at least organic light-emitting. a layer, a first glass layer, a second glass layer and a connecting portion, the connecting portion is disposed between the first glass layer and the outer edge of the second glass layer to connect the first glass layer and the second glass layer, and serves as a frame A sealed space is formed, and the organic light emitting layer is disposed in the closed space. In this way, the light generated by the organic light-emitting layer is emitted to the outside through the first glass layer or the second glass layer to achieve the effect of light emission.

However, the light generated by the organic light-emitting layer is non-directional, so that in addition to being emitted through the light-transmitting material such as the first glass layer or the second glass layer, the light is often transmitted through the connecting portion and the first glass layer or the second glass. The connection gap between the layers is emitted outward, causing problems such as edge leakage or inability to concentrate light.

The main object of the present invention is to solve the problem that the conventional organic light-emitting diode causes light to be concentrated due to edge leakage.

To achieve the foregoing objective, the present invention provides an organic light emitting diode device for preventing edge leakage, comprising a substrate, an organic light emitting diode, a metal layer, and a package, the substrate including a central region, a cavity region, and an outer edge region, the cavity The body region surrounds the central region, the outer edge region surrounds the cavity region, and the cavity region and the outer edge region form a boundary; the organic light emitting diode is disposed on the substrate and is located in the central region and generates light, and the metal layer is disposed on the substrate and at least partially The outer cover region and the cavity region cover the interface; the package includes a cover body and a sidewall, the sidewall extends from the cover toward the substrate and includes an inner edge and an outer edge, and the inner edge is adjacent to the organic light emitting diode and is connected to the metal layer The outer edge is away from the organic light emitting diode and is connected to the outer edge region; wherein the metal layer is located at the intersection It is bounded between the substrate and the sidewall of the package to avoid edge leakage of light.

In order to achieve the above object, the present invention further provides a sight comprising a housing, an optical lens, and an organic light emitting diode device, wherein the organic light emitting diode device is disposed on the base of the housing and away from the viewing window of the housing. At one end, the light is projected to the optical lens in a first direction to generate an aiming pattern, and the optical lens is disposed in the viewing window housing of the housing; wherein the organic light emitting diode device comprises the substrate and the organic light emitting diode a metal layer and a package, the substrate comprises a central region, a cavity region and an outer edge region, the cavity region surrounds the central region, the outer edge region surrounds the cavity region, and a boundary is formed between the cavity region and the outer edge region; The pole body is disposed on the substrate and located in the central region and generates light, the metal layer is disposed on the substrate and at least partially located at the outer edge region and the cavity region to cover the interface; the package comprises a cover body and a sidewall, and the sidewall extends from the cover body toward the substrate And including an inner edge and an outer edge, the inner edge is close to the organic light emitting diode and connected to the metal layer, the outer edge is away from the organic light emitting diode and the outer edge region It is connected; wherein the metal-based layer is at the junction of the side walls and between the substrate and the package of the light to avoid the occurrence of an edge light leakage.

In summary, the present invention allows the light to be reflected by the metal layer being disposed at the boundary between the cavity region of the substrate and the outer edge region of the substrate, and the connection between the substrate and the package is not possible. The gap is emitted to avoid the effect of light leakage at the edge of the light.

1‧‧‧Organic light-emitting diode device

2‧‧‧Sight

10‧‧‧Substrate

11‧‧‧Central area

12‧‧‧ cavity area

13‧‧‧Outer area

14‧‧‧ Junction

20‧‧‧Organic Luminescent Diodes

30‧‧‧metal layer

31‧‧‧ first edge

32‧‧‧ second edge

40‧‧‧Package

41‧‧‧ Cover

42‧‧‧ side wall

421‧‧‧ inner edge

422‧‧‧ outer edge

50‧‧‧Hydrautic materials

60‧‧‧shell

61‧‧‧Base

62‧‧‧View window

70‧‧‧ optical lens

80‧‧‧ mask

1 is a schematic cross-sectional view showing an organic light emitting diode device according to an embodiment of the present invention.

2 is a top plan view showing a metal layer disposed on a substrate in an embodiment of the present invention.

3 is a schematic cross-sectional view of a sight of an embodiment of the present invention.

The detailed description and technical contents of the present invention will now be described with reference to the drawings. Please refer to FIG. 1 and FIG. 2, and FIG. 1 is a cross section of an organic light emitting diode device according to an embodiment of the present invention. FIG. 2 is a top plan view showing a metal layer disposed on a substrate according to an embodiment of the present invention. As shown in the figure, the present invention is an organic light emitting diode device 1 for preventing edge leakage, comprising a substrate 10, an organic light emitting diode 20, a metal layer 30, and a package 40. The substrate 10 includes a central region 11 and a cavity. The region 12 and the outer edge region 13, the cavity region 12 surrounds the central region 11, the outer edge region 13 surrounds the cavity region 12, and an interface 14 is formed between the cavity region 12 and the outer edge region 13, and the interface 14 can be a rectangle Or a closed curve, as shown in FIG. 2; in the embodiment, the refractive index of the substrate 10 is between 1 and 2; the organic light-emitting diode 20 is disposed on the substrate 10 and located in the central region 11 and generates light. L, the light L is transmitted through the substrate 10 and emitted outward; the metal layer 30 is disposed on the substrate 10 and at least partially located at the cavity region 12 and the outer edge region 13 to cover the boundary 14 , and the metal layer 30 surrounds the organic light emitting A distance between the polar body 20 and the organic light-emitting diode 20 is maintained to avoid direct contact between the metal layer 30 and the organic light-emitting diode 20, thereby affecting the luminous efficiency of the organic light-emitting diode, wherein the metal layer 30 includes the first Edge 31 and second edge 32, An edge 31 is located in the cavity region 12, and the second edge 32 is located in the outer edge region 13, as shown in FIG. 2; in this embodiment, the metal layer 30 may be selected from the group consisting of molybdenum, aluminum, chrome, copper, zinc, and the like. The refractive index is between 1 and 2.5 to effectively reflect the light L. The package 40 includes a cover 41 and a sidewall 42 extending from the cover 41 toward the substrate 10 and including an inner edge 421 and an outer edge 422. The inner edge 421 is adjacent to the organic light emitting diode 20 and is connected to the metal layer 30. The outer edge 422 is away from the organic light emitting diode 20 and is connected to the outer edge region 13 of the substrate 10; wherein the metal layer 30 is located on the interface 14 and Between the substrate 10 and the sidewall 42 of the package 40.

In the present embodiment, the organic light-emitting diode device 1 further includes an adhesive (not shown), and the adhesive connects the sidewall 42 of the package 40 and the metal layer 30 and the outer edge region 13 of the substrate 10 to be firmly connected; The organic light-emitting diode device 1 further includes a moisture absorbing material 50 located in a chamber between the package and the substrate 10 to prevent moisture from affecting the luminous efficiency of the organic light-emitting diode 20.

Accordingly, the present invention allows the light L to be reflected back through the metal layer 30 by disposing the metal layer 30 between the substrate 14 and the side wall 42 of the package 40, and is not able to pass through the substrate 10 and The connection gap of the package 40 is emitted to achieve the effect of preventing edge leakage, thereby enabling the light L to be more concentratedly emitted from the substrate 10, thereby improving the brightness.

Referring to FIG. 3, FIG. 3 is a schematic cross-sectional view of a sight according to an embodiment of the present invention. As shown, the present invention also provides a sight 2 for applying the organic light-emitting diode device 1. The sight 2 includes a housing 60, an optical lens 70, and an organic light emitting diode device 1; wherein the housing 60 includes a base 61 and a viewing window 62, and the viewing window 62 is disposed at one end of the base 61, and the optical lens 70 is disposed. In the viewing window 62, the organic light emitting diode device 1 is disposed at one end of the base 61 away from the viewing window 62, and the light L emitted from the organic light emitting diode device 1 is projected to the optical lens 70 to generate an aiming pattern.

As shown in the following, the sight 2 can be connected by a base 61 and a launching device (not shown) to provide a user to view the target through the viewing window 62 and aim at the aiming image; in this embodiment, the sight 2 may further include a mask 80 disposed on a side of the organic light emitting diode device 1 facing the viewing window 62 and having a through hole through which the light L passes to generate an aiming pattern, for example, the through hole may be The different shapes are designed such that when the light L is projected through the through hole to the optical lens 70, a corresponding aiming pattern can be generated to meet the different needs of the user.

The above embodiments are merely illustrative of the present invention and its effects, and are not intended to limit the present invention, and those skilled in the art can modify and modify the above embodiments without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention should be as listed in the scope of the patent application to be described later.

Claims (8)

An organic light emitting diode device for preventing edge leakage, comprising: a substrate comprising a central region, a cavity region surrounding the central region, and an outer edge region surrounding the cavity region, wherein the cavity region and the outer edge region Forming a boundary therebetween, the substrate having a refractive index of between 1 and 2; an organic light emitting diode disposed on the substrate and located in a central region of the substrate and generating light; a metal layer disposed on the substrate and at least partially located An outer edge region of the substrate and a cavity region of the substrate overlying the interface of the substrate; and a package comprising a cover and the sidewall extending from the cover toward the substrate and including an inner edge and an outer edge The inner edge is adjacent to the organic light emitting diode and is connected to the metal layer, and the outer edge is away from the organic light emitting diode and connected to the outer edge region of the substrate; wherein the metal layer is disposed on the substrate An interface position between the substrate and the sidewall of the package, and the metal layer surrounds the organic light emitting diode and maintains a spacing between the organic light emitting diode and the organic light emitting diode The diode light may be reflected back to produce the metal layer, and the connection can not be transmitted out of the package via the gap to the substrate, to avoid the occurrence of an edge light leakage light. The organic light-emitting diode device for preventing edge leakage according to claim 1, wherein the metal layer is selected from the group consisting of molybdenum, aluminum, chromium, copper, and zinc. The organic light-emitting diode device for preventing edge leakage according to claim 1, wherein the metal layer has a refractive index of between 1 and 2.5. An organic light-emitting diode device for preventing edge leakage as described in claim 1, further comprising a moisture absorbing material located in a chamber between the package and the substrate. The organic light-emitting diode device for preventing edge leakage according to claim 1, wherein the interface of the substrate is rectangular or closed. The OLED device for preventing edge leakage according to claim 1, further comprising an adhesive for bonding the sidewall of the package to the metal layer and the outer edge region of the substrate. A sight comprising: a housing, a base, and a viewing window disposed at one end of the base; an optical lens disposed in the viewing window; and the organic light emitting diode according to claim 1 of claim The OLED device is disposed at an end of the base of the housing away from the viewing window, and the OLED device generates light to be projected to the optical lens to generate an aiming pattern. The sight of claim 7, further comprising a mask disposed on the illuminating diode device and facing a side of the viewing window, the mask having a through hole for the light to pass through to generate the aiming pattern .