DE102016212138A1 - A light-emitting module, light-emitting device and method of manufacturing and operating the same - Google Patents

Abstract

In various embodiments, there is provided a light emitting module (100a, 100b, 100c, 100d, 100e, 100f) comprising a lead frame (110), a first light emitting device (120a) disposed in a first region (112) of the first A second light-emitting component (120b) which is arranged in a second region (114) of the leadframe (110) and is electrically conductively connected to the leadframe (110), a first converter material (130 ) on or above the first light-emitting device (120a), a second converter material (140) on or above the second light-emitting device (120b) and / or on or above the first light-emitting device (120a). The first region (112) of the leadframe (110) is electrically isolated from the second region (114) of the leadframe (110). The first converter material (130) is different from the second converter material (140).

Description

The invention relates to a light-emitting module, a light-emitting device and a method for producing and operating the same.

Optoelectronic light sources, such as LEDs (Light Emitting Diode), are increasingly used in general lighting, for example as luminaires for living or work spaces, as their energy efficiency compared to incandescent or fluorescent improved and their performance in terms of light flux, Luminance could be increased. For opto-electronic light sources to be a good substitute for incandescent or fluorescent lamps, it is desirable to produce opto-electronic light sources that perform similar or even identical performance or that have emissive light with similar or identical characteristics. One of these properties is to be able to tune the color temperature of the emissive light of the light sources, for example, from cold white light to warm white light. Traditional LEDs that emulate natural light bulb dimming require at least two LED units, often three LED units. In conventional LEDs, the emitted light in the near field appears due to the radiation characteristics of the individual LED units as a multiple, very intense, small point light source rather than the only, homogeneous light source. This phenomenon is particularly noticeable in conventional LEDs with color different LED units because the color mixing of the light from the LED units is not uniform.

The object of the invention is to provide a light-emitting module which is compact and energy-efficient, and which emits an emissable light whose color temperature is tunable and has a more homogeneous color mixture in the near field. A further object is to provide a low-cost light-emitting device with good luminous efficacy, which has at least two light-emitting modules and whose light-emitting modules are arranged such that the light-emitting device enables improved color reproduction. A further object is to provide a method for producing the light-emitting module, which enables a module which can be produced in a few steps and a simple connection of the light-emitting module. Another object is to provide a method of operating the light-emitting module that allows light to be emitted by the light-emitting module that has a color valence that is adjustable along a connecting line between two predetermined color valencies

In one aspect, a light-emitting module is provided that includes a leadframe, a first light-emitting device, a second light-emitting device, a first converter material on or above the first light-emitting device, a second converter material on top of or over the second Having light-emitting device and / or on or above the first light-emitting device. The first light-emitting component is arranged in a first region of the lead frame and electrically conductively connected thereto, and the second light-emitting component is arranged in a second region of the lead frame and electrically conductively connected thereto. The first region of the leadframe is electrically isolated from the second region of the leadframe. The first converter material is different from the second converter material.

The term leadframe is used herein to mean that it is a metallic structure in a chip package that transfers signals from the die to the outside, and vice versa.

A light-emitting component may be an optoelectronic component. By way of example, the light-emitting component is a semiconductor light-emitting component. For example, the first light-emitting device and the second light-emitting device are the same.

By means of the arrangement of the first light-emitting component and the second light-emitting component on or over a single common conductor frame piece, these are brought closer together than two light-emitting components which are respectively arranged on or above a printed circuit board , This causes the light-emitting module to have at least two light-emitting components that represent at least two light sources that allow a single homogeneous light that can be emitted by the module with good color mixing. Furthermore, the light-emitting module makes it possible for each of the light-emitting components to be controlled independently of one another.

In one development, the first light-emitting component and the second light-emitting component are spaced apart in a range from 200 μm to 600 μm. In other words, the first light-emitting device and the second light-emitting device are arranged at a distance in the range of 200 μm to 600 μm from each other. This causes the emissive light of the first light-emitting device and the emissive light of the second light-emitting device to be better overlap. Thus, an improved, additive color mixing of the emissive light of the first light-emitting component and the emissable light of the second light-emitting component can take place and a more homogeneous color reproduction and a diffuse representation of the light-emitting module can be achieved.

In a further development, the first converter material and / or the second converter material are / is arranged in the beam path of the emissable light of the first light-emitting component. In a further development, the second converter material is arranged in the beam path of the second light-emitting component. In other words, the first converter material and / or the second converter material are arranged such that the emissable light of the first light-emitting component passes through the first converter material and / or the second converter material.

The term "in the ray path" can also be understood as "in the light path".

Among other things, this causes the emissive light of each light-emitting component to enter the converter material and to be coupled out of the light-emitting module.

In a development, the light-emitting module has at least one further, first light-emitting component. The further, first light-emitting component is arranged in the first region of the leadframe and connected to it in an electrically conductive manner. Illustratively, the first region thus has two or more light-emitting components. The two or more first light-emitting devices may be the same size as the light-emitting device in the second region. Alternatively, the first region may also include one or more light-emitting devices that is larger than the light-emitting device in the second region. This allows a stronger emissive light of the first light-emitting device. For example, a stronger emissive light of the first light-emitting device may equalize the emissive light of the second light-emitting device when the emissive light of the second light-emitting device is stronger in color reproduction. This enables the use of the same light-emitting devices and thus a simple manufacturing process of the light-emitting module. In other words, since the first and second converter materials may potentially be disposed over the second region, the light emitting device (s) in the first region should receive more light, i. Light with a higher light intensity, for example, at the same or approximately the same operating voltage as that used to operate the light-emitting device in the second region. The two or more light-emitting devices in the first region may be electrically connected in series or in parallel. More light emitting devices in the first region may also be electrically connected together in a mixing circuit.

In a further development, the emissable light of the first light-emitting component with the emissable light of the first converter material and / or the emissable light of the second converter material is a warm-white light.

In a further development, the emissable light of the second light-emitting component with the emissive light of the second converter material is a cold-white light.

The term "warm white light" is understood herein to mean that the color temperature of the emissive light is in the range of about 2500K to about 3500K.

The term "cold white light" is understood herein to mean that the color temperature of the emissive light is in the range of about 5,000K to about 7,000K.

This allows the light-emitting module to emit an emissive light having color temperatures of from about 2,500 K to about 11,000 K, and thus can emit an adjustable emissive light between warm-white and cold-white.

In a further development, the module also has a third light-emitting component to the first light-emitting component and the second light-emitting component, which is arranged in a third region of the lead frame and electrically conductively connected thereto. The first light-emitting device is formed such that a red light is emissive. The second light-emitting component is designed such that a green light can be emitted. The third light-emitting component is designed such that a blue light can be emitted.

This makes it possible to provide a light-emitting module which emits a red, blue or green, emissive light or a light whose color is any combination of two of these colors. For example, the color impression of the emissive light may be white in the combination of all three colors.

The term "red light" is used herein to mean that the emissive light has a dominant wavelength in the range of 600 nm to 680 nm.

The term "green light" is used herein to mean that the emissive light has a dominant wavelength in the range of 520 nm to 560 nm.

The term "blue light" is used herein to mean that the emissive light has a dominant wavelength in the range of 430 nm to 500 nm.

In a further development, the light-emitting module also has a dam structure. This dam structure is disposed between a portion of the lead frame with a light-emitting device and another portion of the lead frame with a light-emitting device. The dam structure is designed such that these areas are optically separated from each other.

The term "dam structure" is used herein to mean that it is a physical structure that is electrically conductive or insulating. For example, the dam structure may be part of the leadframe or potting compound of the leadframe.

The dam structure allows for physical isolation between the first region of the lead frame and the second region of the lead frame. This thus makes it possible to form two cavities or cavities, for example in the form of a blind hole, on the leadframe in which the first converter material and / or the second converter material can be applied to a plurality of light-emitting components by means of a coating method. This provides a simple method of manufacturing the light-emitting module.

In a further development, the first converter material is arranged between the first light-emitting component and the second converter material. This allows the arrangement of the first converter material in direct or closer indirect contact with the lead frame and thus a better dissipation or dissipation of the heat generated by the first converter material in the lead frame.

In a further development, the first converter material, the second converter material, the first light-emitting component and the second light-emitting component are designed such that the light which can be emitted by the light-emitting module is a homogeneous white light. The homogeneous white light has a color locus on the Planck curve. Alternatively or additionally, the homogeneous white light along the Planck curve is adjustable.

The term "color locus" is used herein to mean that it is a location on the CIE diagram defined by coordinates.

In another aspect, a light emitting device is provided. The light-emitting device has at least a first light-emitting module and a second light-emitting module. The first light-emitting device of the first light-emitting module is electrically connected in series with the first light-emitting device of the second light-emitting module. In addition, the second light-emitting device of the first light-emitting module is electrically connected in series with the second light-emitting device of the second light-emitting module.

This enables a compact light-emitting device with high light density and thus good color mixing of the respective light of the light-emitting components of the light-emitting modules. Since the interconnection is transferred directly to electrical contacts of the structure of the light-emitting components, it also causes a simple and cost-effective interconnection of the light-emitting modules.

In various developments, the light-emitting module comprising the light-emitting device has the same features as the light-emitting module described here and vice versa.

In a further development, the light-emitting device has a plurality of light-emitting modules, wherein in each case a first light-emitting component is arranged directly between at least two second light-emitting components and / or in each case a second light-emitting component directly between at least two first light-emitting components is arranged.

This enables a homogeneous, alternating distribution of the types of emissive light and thus a color rendering that is homogeneous over the entire area of the light-emitting device.

In a further development, the first light-emitting module has a first lead frame and the second light-emitting module has a second lead frame. The first leadframe is at a distance from the second Ladder frame arranged. For example, the distance between the first leadframe and the second leadframe is between 50 μm to 200 μm.

This allows the emissive light of the first light-emitting module and the emissive light of the second light-emitting module to better overlap. Thus, an improved, additive color mixing of the emissive light of the first light-emitting module and the emissive light of the second light-emitting module can take place and a more homogeneous color rendering can be achieved.

In a further development, the light-emitting device has a plurality of light-emitting modules. The plurality of light-emitting modules are arranged in at least two rows. Each row has at least two light-emitting modules.

This causes the light-emitting device to have various shapes or configurations during which the light which can be emitted by the light-emitting device remains homogeneous.

In another aspect, a method of manufacturing a light-emitting module is provided. The method comprises forming a first light-emitting device on or over a first region of a leadframe, forming a second light-emitting device on or over a second region of the leadframe, depositing a first converter material on or above the first light-emitting device Component and applying a second converter material on or above the second light-emitting device and / or on or above the at least one first light-emitting device. The first light-emitting component is arranged in a first region of the leadframe and electrically conductively connected thereto, and the second light-emitting component is arranged in a second region of the leadframe and electrically conductively connected thereto. The first region of the leadframe is electrically isolated from the second region of the leadframe. The first converter material is different from the second converter material.

This allows the use of fewer materials, as the number of lead frames is significantly reduced and thus a simple and less expensive method of manufacturing the light-emitting module. In addition, can be dispensed with a more expensive circuit board.

In various developments, the method for producing the light-emitting module has the same features as the light-emitting module described here and vice versa.

In another aspect, a method of operating a light-emitting module is provided. In the method, the first light-emitting component and the second light-emitting component are driven in such a way that the light which can be emitted by the light-emitting module has a color valence that can be set along a connecting line between two predefined color valencies.

By way of example, the first light-emitting component can be switched on and the second light-emitting component can be switched off so that the light-emitting module emits a warm-white light. For example, the first light-emitting component can be switched off and the second light-emitting component can be switched on, so that the light-emitting module emits a cold-white light. Between these two color valences warm-white / cold-white, the light-emitting components of the light-emitting module can be driven in such a way, for example, pulse modulated, such as pulse width modulated, so that a color locus along the connecting line between the color locus of the warm white light and the color locus of the cold-white light can be adjusted ..

This makes it possible to color adjust the emissive light of the light-emitting module.

In various developments, the method for operating the light-emitting module has the same features as the light-emitting module described here and vice versa.

Show it:

1A to 1C schematic cross-sectional views of a light-emitting module according to various embodiments;

1D to 1G schematic plan views of a light-emitting module according to various embodiments;

2A . 2 B a schematic plan view and a schematic detail of a light-emitting device according to various embodiments;

3 a flow diagram of a method for manufacturing a light-emitting module according to various embodiments;

4 schematic plan views of the respective structure during the method for producing a light-emitting module according to various embodiments;

5 a flowchart of a method for operating a light-emitting module according to various embodiments;

6A - 6B Illustrations of the intensity distribution of the emissive light of a light-emitting module according to various embodiments in operation at different distances therefrom;

7A . 7B a portion of a color standard panel with adjustable correlated color temperatures of a light-emitting module according to various embodiments and corresponding views of the light-emitting module at the respective color temperatures;

8A schematic plan views of the light-emitting device according to various embodiments in operation;

8B Comparative illustrations of the intensity distribution between a conventional light-emitting device and a light-emitting device according to various embodiments;

8C a portion of the color standard chart showing the cross talk effect of the light emitting modules according to various embodiments;

9A schematic plan view of the light-emitting module in operation according to various embodiments;

9B Illustrations of the intensity distribution of the emissive light of a light-emitting device according to various embodiments; and

9C a portion of the color standard panel of the light-emitting device according to various embodiments.

In the following detailed description, reference is made to the accompanying drawings, which form a part of this specification, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. Because components of embodiments may be positioned in a number of different orientations, the directional terminology is illustrative and is in no way limiting. It should be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. It should be understood that the features of the various embodiments described herein may be combined with each other unless specifically stated otherwise. The following detailed description is therefore not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims. In the figures, identical or similar elements are provided with identical reference numerals, as appropriate.

In the context of this description, the term "connected" is used to describe both a direct and an indirect connection. In the figures, identical or similar elements are provided with identical reference numerals, as appropriate.

In the context of this description, a color valence can be understood as meaning a physiological, colored effect of an electromagnetic radiation. A color valence can be determined as a color locus (Cx, Cy) in a CIE color standard chart.

In the context of this description, a color of a light and / or a color valence of a light can be understood as a wavelength range of an electromagnetic radiation associated with the color or color valence.

In the context of this description, a light-emitting component can be understood as meaning a component which emits electromagnetic radiation by means of a semiconductor component.

In the context of this description, an electrical contacting of an electrical component or an electrical portion of the electrical component, for example an electronic component, for example an optoelectronic component, for example a light-emitting component, for example, understood as an integration of the light-emitting component in an electrical circuit be, wherein the circuit can be electrically closed, for example by means of the electrical contacting of the electronic component.

In various embodiments, the emissive light of the light-emitting module has a color location that corresponds to a correlated color temperature. As an alternative to the correlated color temperature, the light-emitting component, the respective converter material in the beam path of the light-emitting component and even light-emitting module can be configured in such a way the emissable light has a different color location in a CIE color standard table.

Forming electromagnetic radiation of a second wavelength from electromagnetic radiation of a first wavelength is called wavelength conversion. Wavelength conversion is used in optoelectronic devices for color conversion, for example to facilitate the generation of white light. For example, a blue light is converted into a yellow light. The color mixture of blue light and yellow light forms white light.

A converter material, also referred to as a phosphor, can be arranged for wavelength conversion in the optical path of an optoelectronic component.

1A . 1B . 1C show in a schematic cross-sectional view of a light-emitting module 100a . 100b . 100c according to various embodiments. 1D . 1E . 1F . 1G show in a schematic plan view of a light-emitting module 100d . 100e . 100f according to various embodiments.

1A shows a schematic cross-sectional view of the light-emitting module according to various embodiments.

The light-emitting module 100a . 100b . 100c . 100d . 100e . 100f has a leadframe 110 on. The ladder frame 110 of the light-emitting module has a first region 112 and a second area 114 on. The first area 112 is by means of a molding material 105 from the second area 114 electrically isolated. The light-emitting module 100a . 100b . 100c . 100d . 100e . 100f further comprises a first light-emitting device 120a and a second light-emitting device 120b on. Furthermore, the light-emitting module 100a . 100b . 100c . 100d . 100e . 100f a first converter material 130 placed on or above the first light-emitting device 120a is arranged, and a second converter material 140 placed on or above the second light-emitting device 120b and / or on or over the first light-emitting device 120a is arranged on. The first converter material 130 is different from the second converter material 140 ,

As in 1A is the first converter material 130 of the light-emitting module 100a for example, on or above the second converter material 140 arranged (light-emitting module of the type 1 ). Alternatively or additionally, the first converter material 130 for example, on or above the first area 112 of the ladder frame 110 of the light-emitting module 100a arranged. In other words: part of the second converter material 140 is between the first light-emitting device 120a and the first converter material 130 arranged. Alternatively or additionally, the second converter material is on or above the first light-emitting component 120a and the second light-emitting device 120b arranged. In addition, the second converter material is on or above the first area 112 of the lead frame and the second area 114 arranged the lead frame. For example, the layer of first converter material 130 an average thickness in the range of 50 μm to 100 μm. In addition, the layer of second converter material 140 For example, an average thickness in the range of 300 .mu.m to 400 .mu.m.

1B shows a schematic cross-sectional view of the light-emitting module according to various embodiments. The light-emitting module may be formed substantially in accordance with an embodiment described above.

As in 1B is the second converter material 140 of the light-emitting module 100b for example, on or above the first converter material 130 and on or over the second light-emitting device 120b arranged (type 2 light-emitting module). Alternatively or additionally, the second converter material 140 on or above the first area 112 of the ladder frame 110 and the second area 114 of the ladder frame 110 arranged. In other words: the first converter material 130 or a part thereof is between the first light-emitting device 120a and the second converter material 140 arranged. Alternatively or additionally, the first converter material 130 or a part of it on or above the first area of the lead frame 110 arranged. For example, the layer on first converter material 130 and second converter material 140 a thickness in the range of 200 microns to 300 microns. The first converter material 130 is formed such that it is completely the first light-emitting device 120a covered. In other words, the first light-emitting device is of the second converter Mermatieral 140 by means of the first converter material 130 physically separated.

Illustratively, the first light-emitting component 120a with the first converter material 130 and the second converter material 140 in the first area 112 of the ladder frame 110 arranged and the second light-emitting device 120b with the second converter material 140 in the second area 114 of the ladder frame 110 arranged. This allows that from the first area 112 a first mixed light is emitted and off the second area 114 a second mixed light is emitable, wherein the mixed light is in each case a mixture of the emissable light of the light-emissive component and the emissive, wavelength-converted light of the at least one converter material. By means of the electrical insulation of the first area 112 from the second area 114 is a different, area-individual control of the light-emitting components of the areas allows. Since the first converter material is different from the second converter material, the color location, the brightness and / or the saturation of the light which can be emitted by the light-emitting module can be set by means of the range-individual control. The arrangement of the light-emitting components on a lead frame, for example, instead of on a printed circuit board, allows a denser packing, ie smaller distances between the light-emitting components. This synergistically effects an improved mixture of the emissive light of the first region with the emissive light of the second region. As a result, the light-emitting components of the first and second regions are no longer discernible as distinguishable point light sources even at a smaller distance from the light-emitting components during simultaneous operation. Illustratively, the light-emitting module has a denser packing of light-emitting components and thus an improved, lateral light mixture.

The light-emitting module 100a . 100b . 100c . 100d . 100e . 100f is, for example, a chip-scale package. In other words: the light-emitting module 100a . 100b . 100c . 100d . 100e . 100f is designed as a housing in the order of the light-emitting components, also referred to as "die". For example, the light-emitting module 100a . 100b . 100c . 100d . 100e . 100f a chip package with integrated circuits, in which the area of the "die" makes up at least 80% of the area of the housing.

The first light-emitting device is in the first region 112 of the ladder frame 110 arranged and electrically connected to this. The second light-emitting device is in the second region 114 of the ladder frame 110 arranged and electrically connected to this.

The light-emitting components 120a . 120b are for example by means of a flip-chip assembly or a wafer-level chip scale package method on the lead frame 110 applied. The first area of the ladder frame 110 is from the second area of the leadframe 110 electrically isolated.

The light-emitting device 120a . 120b In various exemplary embodiments, an electromagnetic radiation-emitting semiconductor component and / or a diode emitting electromagnetic radiation or a transistor emitting electromagnetic radiation are embodied. The radiation may, for example, be light in the visible range, UV light and / or infrared light, for example in the visible range of the wavelength from 380 nm to 780 nm. In this context, the light-emitting component may be, for example, a light-emitting diode (light emitting diode) diode, LED) as an organic light-emitting diode (organic light emitting diode, OLED), be designed as a light-emitting transistor or as an organic light-emitting transistor. The light-emitting device 120a . 120b may be part of an integrated circuit in various embodiments. The light-emitting device 120a . 120b , which provides electromagnetic radiation is, for example, set up as a surface mounted device (SMD).

The first light-emitting device 120a and the second light-emitting device 120b For example, the same components that have the same dimensions. In other words: the light-emitting components 120a . 120b are formed with the same structure and are of equal size. For example, the light-emitting device 120a . 120b a length in the range of 200 microns to 1100 microns, for example, 850 microns. Alternatively or additionally, the first light-emitting component 120a . 120b a width in the range of 200 microns to 600 microns, for example, 560 microns. Alternatively or additionally, the light-emitting component 120a . 120b a thickness in the range of 100 microns to 200 microns, for example, 150 microns.

In a further embodiment, in the first light-emitting device 120a further first light-emitting components 120a provided, for example, two or three. In other words: the first light-emitting component 120a has a plurality of first light-emitting components. The added lengths of the plurality of first light-emitting devices 120a in the range of 800 microns to 900 microns, for example, 850 microns and the added widths of the plurality of first light-emitting devices 120a in the range of 500 microns to 600 microns, for example, 560 microns. Alternatively or additionally, in the second light-emitting component 120b further first light-emitting components 120b provided, for example, two or three. In other words: the second light-emitting component 120b has a plurality of first light-emitting components. The added lengths of the plurality of first light-emitting devices 120a In the range of 800 μm to 900 μm, for example 850 μm, and the added widths of the plurality of first light-emitting components 120a in the range of 500 microns to 600 microns, for example, 560 microns. Alternatively or additionally, the first light-emitting component 120a and the second light-emitting device 120b different dimensions. For example, the first light-emitting component 120a a surface emitting emissive light larger than the area of the second light-emitting device 120b emitting emissive light, for example, 1.5, 2 or 3 times larger. For example, the first light-emitting component 120a a higher number of first light-emitting devices than the second light-emitting device 120b a number of second light-emitting devices. For example, the first light-emitting component 120a two first light-emitting devices and the second light-emitting device 120b a second light-emitting device, as in 1E illustrated. For example, they have the first light-emitting component 120a three first light-emitting devices and the second light-emitting device 120b two second light-emitting components.

Each light-emitting device 120a . 120b is for example with the lead frame 110 by means of two wires 118 electrically connected. The wire 118 connects, for example, one of the light-emitting components 120a . 120b with an area of the lead frame 110 , The wires for contacting the light-emitting devices may be, for example, via a dam structure described in more detail elsewhere 160 be guided. To the wires 118 to protect is optional a protective layer 150 For example, a clear silicone layer on or over the first converter material 130 and the second converter material 140 intended.

The ladder frame 110 serves for example for mechanical fastening and / or for electrically contacting the light-emitting components, such as chips, for example semiconductor chips, and / or optoelectronic components.

The first areas and the second area of the lead frame 110 may each have one, two or more lead frame sections (also called lead frame areas). One of the leadframe portions of the first and second regions is, for example, a receiving region for receiving and / or contacting or connecting the light-emitting component. Another leadframe portion of the leadframe portions of the first and second regions is, for example, a contact region for electrically contacting the light-emitting devices with a module-external power supply.

In various embodiments, the lead frame 110 formed from a single leadframe piece. The first light-emitting device 120a and the second light-emitting device 120b For example, they are next to each other on the same leadframe 110 arranged. For example, the first light-emitting device 120a at a distance of 200 μm to 1000 μm from the second light-emitting device 120b on the common lead frame 110 arranged. In other words: the first light-emitting component 120a and the second light-emitting device 120b are spaced from 200 μm to 1000 μm.

Several ladder frames 110 and / or the corresponding leadframe sections can be held together in a ladder frame assembly, for example. The lead frame composite has, for example, an electrically conductive material and / or is formed therefrom. The electrically conductive material comprises, for example, a metal, for example copper, for example CuW or CuMo, copper alloys, brass, nickel and / or iron, for example FeNi, and / or is formed therefrom. The leadframe composite can be coated prior to further processing, for example metallized, for example in a galvanic process, for example with silicon, nickel, palladium and / or gold or with an alloy comprising, for example, one or more of said materials.

In various embodiments, a leadframe composite is formed, for example, from a leadframe blank, which is for example a flat metal plate, for example by means of a chemical method such as etching, or by a mechanical method such as punching.

In various embodiments, the leadframe composite has a plurality of later, for example, electrode-forming leadframe sections, which are interconnected in the leadframe composite, for example by means of metal webs.

In various embodiments, one of the lead frames 110 the leadframe sections, which form, for example, the electrodes, wherein the leadframe sections are no longer physically connected to one another by means of the metal, ie, for example, after the metal webs have already been removed. Thus, in various embodiments, the electrodes illustratively form the leadframe 110 itself or represent isolated parts of a ladder frame composite.

In the manufacture of housings, the lead frame composite can be made, for example, into a molding material 105 (Also referred to as Molding material) are embedded, for example in a mold process, such as an injection molding or transfer molding process.

The molding material 105 may be formed, for example, as a plastic sheath. The molding material 105 For example, it may comprise epoxy, silicone or a hybrid material comprising, for example, one of the materials mentioned.

The structure of molding material 105 and the embedded therein lead frame composite can also be referred to as a housing composite.

That the lead frame composite or the lead frame 110 in the molding material 105 embedded, for example, means that the lead frame 110 or their lead frame sections at least partially from the molding material 105 be surrounded. Parts of the ladder frame 110 can be free of mold material 105 stay. For example, at a bottom of the lead frame 110 the electrical connections for contacting the housing, such as the lead frame sections of the housing, be exposed. In addition, on an upper side of the lead frame 110 Receiving recesses in which the receiving areas and / or contact areas are exposed, free of mold material 105 be.

The ladder frame 110 has dimensions, for example, a length in a range of about 1.5 mm to about 3 mm, a width in a range of about 1.5 mm to about 3 mm, and a thickness in a range of about 150 μm to about 300 μm, which are selected such that the light-emitting device 120a . 120b and the electrical contacts fit on it.

In various embodiments, the first converter material 130 and the second converter material 140 formed in a common layer. Alternatively, this is the first converter material 130 formed in a first layer and the second converter material 140 is formed in the second layer.

The first converter material 130 and the second converter material 104 For example, each is a conventional phosphorescent or fluorescent material that can emit light in the visible wavelength range.

For example, the second converter material 140 a plurality of converter materials which are mixed together or formed on each other.

In other embodiments, the first converter material 130 directly in the beam path or light path of the emissable light of the first light-emitting component 120a arranged. Alternatively or additionally, the first converter material 130 and the second converter material 140 directly in the beam path or light path of the emissable light of the first light-emitting component 120a arranged. Alternatively or additionally, the second converter material 140 directly in the beam path or light path of the emissable light of the second light-emitting component 120a arranged.

For example, the first converter material 130 on the first light-emitting device 120a arranged such that the exposed surface of the first light-emitting device 120a on the leadframe substantially completely from the first converter material 130 is covered, for example, except for an opening area in the converter material for the electrical contacting of the light-emitting device 120a For example, a wire bond, or a cooling area. Analogously, alternatively or additionally, the first converter material 130 and the second converter material 140 on the first light-emitting device 120a arranged such that the first light-emitting device 120a essentially completely from the first converter material 130 and the second converter material 140 is covered or surrounded. Analogously, alternatively or additionally, the second converter material 140 on the second light-emitting device 120b arranged such that the second light-emitting device 120b essentially completely from the second converter material 130 covered or surrounded.

In further exemplary embodiments, the emissive mixed light of the first light-emitting component is 120a and the first converter material 130 a first white light, such as a warm white light, for example, having a correlated color temperature (CCT) in the range of about 2000 K to about 2500 K.

Alternatively, the emissive mixed light of the first light-emitting device 120a , the first converter material 130 and the second converter material 140 a second white light, for example a natural white light, for example with a correlated color temperature in the range of about 3500 K to about 5000 K. Alternatively or additionally, the emissive mixed light of the second Light-emitting device 120b and the second converter material 140 a third white light, for example a cold white light, for example having a correlated color temperature in the range of about 5000 K to about 11000 K.

In a further embodiment, the first converter material 130 , the second converter material 140 , the first light-emitting device 120a and the second light-emitting device 120b and / or the third light-emitting device 120c formed such that of the light-emitting module 100a . 100b . 100c . 100d . 100e emissable light is a homogeneous white light having a color locus along the Planck curve, for example, a color locus in the range of 2700 to 6500. Alternatively or additionally, the first converter material 130 , the second converter material 140 , the first light-emitting device 120a and the second light-emitting device 120b and / or the third light-emitting device 120c formed such that of the light-emitting module 100f emissable light is a homogeneous white light that is tunable to a color locus on the Planck curve, for example 2700 K to 6500 K.

In various embodiments, the light-emitting module 100a . 100b . 100c . 100d . 100e . 100f Further, a waveguide layer 150 on.

The waveguide layer 150 For example, in various embodiments, a conductor is for conducting emissive electromagnetic radiation. In other words: the waveguide layer 150 is a component which is transmissive to the electromagnetic radiation, for example translucent or transparent, or at least substantially transparent, and which extends in an elongated extension direction. The waveguide layer 150 may also be referred to as a beam guide, waveguide structure, optical fiber, optical fiber, optical fiber or optical fiber.

The waveguide layer 150 is, for example, on or above the first light-emitting device 120a and the second light-emitting device 120b arranged. Alternatively or additionally, the waveguide layer is formed such that the emissable light of the first light-emitting component and the emissable light of the second light-emitting component are miscible. In other words, the emissive light of the first light-emitting device 120a is in or over a part of the second region of the lead frame 110 by means of the waveguide layer 150 directed. Alternatively or additionally, the emissable light of the second light-emitting component 120b in a region of the second region of the leadframe 110 by means of the waveguide layer 150 directed.

The waveguide layer 150 has, for example, a silicone or a polysilazane and / or is formed therefrom.

1C shows a schematic cross-sectional view of the light-emitting module according to various embodiments. The light-emitting module may be formed substantially in accordance with an embodiment described above. As in 1C is illustrated has the light-emitting module 100c Furthermore, a dam structure 160 on (type 3 light-emitting module).

The dam structure 160 can also be referred to as insulating structure. The dam structure 160 is for example between an area of the leadframe 110 and another portion of the lead frame, for example, between the first portion 112 and the second area 114 of the ladder frame 110 , By means of the dam structure are two cavities or cavities, for example in the form of a blind hole, formed on the lead frame.

In one embodiment, the dam structure comprises the molding material 105 on or is formed from it. The dam structure 160 For example, it may be part of the leadframe or potting compound of the leadframe.

1D shows a schematic plan view of the light-emitting module according to various embodiments. The light-emitting module may be formed substantially in accordance with an embodiment described above. As in 1D is illustrated, allows the dam structure 160 the simultaneous application of the first converter material 130 on several first light-emitting components 120a several light-emitting modules 100d and / or the simultaneous application of the second converter material 140 on several second light-emitting components 120b several light-emitting modules 100d ,

The light-emitting modules 100d are arranged in the form of a panel and electrically connected together.

In a later method step, the light-emitting modules 100d along the line 170 to be isolated.

1E shows a schematic plan view of the light-emitting module according to various embodiments. The light-emitting Module may be formed substantially in accordance with an embodiment described above.

The first region of the leadframe has a first leadframe section 111 and second leadframe section 115a on. Two first light-emitting components 120a are on or above the first ladder frame section 111 are arranged and connected to this electrically conductive. The two first light-emitting devices 120a are, for example, identical light-emitting components. The second ladder frame section 1153a is with the first light-emitting devices 120a electrically connected.

The second region of the leadframe has a first leadframe section 117a and second leadframe section 113a on. A second light-emitting device 120b is on or above the first ladder frame section 117a arranged and electrically connected to this. The second ladder frame section 113a is with the second light-emitting device 120b electrically connected.

Furthermore, for example, several wires 118 provided, which in each case an electrical connection between the light-emitting components 120a . 120b and the ladder frame sections. Furthermore, the two first light-emitting components 120a by means of a wire 118 be electrically connected to each other, for example, electrically in series or in parallel.

1F shows a schematic plan view of a red-green-blue (RGB) light-emitting module according to various embodiments. The light-emitting module may be formed substantially in accordance with an embodiment described above. As in 1F is illustrated has the light-emitting module 100f three first light-emitting components 120a on, on or above the first area 112 of the ladder frame 110 are arranged and connected to this electrically conductive. Furthermore, this has the light-emitting module 100f two second light-emitting components 120b on, on or over the second area 114 of the ladder frame 110 are arranged and connected to this electrically conductive. Furthermore, this has the light-emitting module 100f a third light-emitting device 120d on that in a third area 116 of the ladder frame 110 arranged and connected to this electrically conductive.

The first three light-emitting devices 120a are formed so that a red-emissive light (R) is emissive or emitted. Alternatively or additionally, the two second light-emitting components 120b is formed so that a green, emissive light (G) is emissive or emitted. Alternatively or additionally, the third light-emitting component 120c formed such that a blue (B) emissive light is emitted or emitted.

In another embodiment, there are areas 112 . 114 and 116 by means of the dam structure 160 physically and optically isolated from each other. This allows the emissive light of the respective light-emitting device not to be conducted into the area of another light-emitting device.

In yet another embodiment, the light-emitting module 100f external electrical lines acting as current inputs 111b . 113b . 119b or current outputs 115b . 117b . 121b can be used for a module-external interconnection. Illustratively, these leadframe sections and the electrical contacts of the light-emitting module to module-external conductor tracks.

1G shows a schematic plan view of an embodiment of the lead frame and the positions of the light-emitting components of the light-emitting module 100f , The light-emitting module may be formed substantially in accordance with an embodiment described above.

As in 1G Illustrated are the first three light-emitting devices 120a on or above the first ladder frame section 111 of the first region of the leadframe 110 arranged and electrically connected to this. The electrical supply of the leadframe section 111 takes place by means of a first electrical line 111b (please refer 1F ) acting as an electrical power input connected to the first leadframe section 111 is connected, and a second electrical line 115b , which acts as an electrical current output (in 1F illustrated) with a second leadframe section 115a the first region is connected, wherein the first lead frame section 111 with the second lead frame section 115a electrically connected.

The power input 111b may have a first electrical potential and the current output 115b have a second electrical potential that may be different from the first electrical potential.

Alternatively or additionally, the two second light-emitting components 120b on or above the first ladder frame section 113a of the second region of the leadframe 110 arranged and electrically connected to this. The electric Supply of the leadframe section 113a takes place by means of a second electrical line 113b (please refer 1F ) acting as an electrical current input connected to the first leadframe section 113a is connected, and a second electrical line 117b (in 1F illustrated) with a second leadframe section 117a of the second region, wherein the first leadframe section 113a with the second lead frame section 117a electrically connected.

The power input 113b may have a first electrical potential and the current output 117b have a second electrical potential that may be different from the first electrical potential.

Alternatively or additionally, the third light-emitting component 120c on or over a second ladder frame section 121 of the third area of the leadframe 110 arranged and electrically connected to this. The electrical supply of the leadframe section 121 takes place by means of a first electrical line 119b (please refer 1F ) acting as an electrical power input connected to the first leadframe section 119a of the third region of the lead frame, and a second electrical lead 121b (in 1F illustrated) with the second leadframe section 121 is connected, wherein the first lead frame section 119a with the second lead frame section 121 electrically connected.

The power input 119b may have a first electrical potential and the current output 121b have a second electrical potential that may be different from the first electrical potential.

2A . 2 B show in schematic plan views a light-emitting device according to various embodiments.

2A shows a schematic plan view of the light-emitting device according to various embodiments. The light-emitting device 200 has at least one first light-emitting module 210a and a second light-emitting module 210b on. The light-emitting modules may be formed substantially in accordance with an embodiment described above.

Furthermore, the first light-emitting component 212a of the first light-emitting module 210a with the first light-emitting device 212b of the second light-emitting module 210b electrically connected in series and the second light-emitting device 222a of the first light-emitting module 210a with the second light-emitting device 222b of the second light-emitting module 210b electrically connected in series. Illustratively, in each case the first light-emitting components or the second light-emitting components of the light-emitting modules are electrically connected in series. Thus, the first light-emitting devices can be energized independently of the second light-emitting devices. Thereby, the color location of the light-emitting modules or the light-emitting device can be adjusted. In addition, the series connection simplifies the electrical contacting of the light-emitting components, for example, by saving traces of a conventionally used printed circuit board and the space required for this purpose.

2 B shows a schematic detailed plan view of the light-emitting device according to various embodiments. The light-emitting device or the light-emitting module may be formed substantially in accordance with an embodiment described above. As in 2 B is the first light-emitting module 210a and the second light-emitting module 210b with a first external electrical line 216 (Also referred to as a conductor track) and a second external electrical line 226 connected. This allows a simplified interconnection of the light-emitting modules, in that the interconnection of the first light-emitting components and the interconnection of the second light-emitting components are made more compact and arranged. In addition, by means of the arrangement of the first light-emitting components and the second light-emitting components on the same, common lead frame, an additional electrical trace can be saved for their connection. Thus, a denser packing of the light-emitting modules on the light-emitting device is enabled.

Alternatively or additionally, the first light-emitting component 212a of the first light-emitting module 210a from the second light-emitting device 222b of the second light-emitting module 210b electrically isolated. Alternatively or additionally, the second light-emitting component 222a of the first light-emitting module 210a from the first light-emitting device 212b electrically isolated.

The first external electrical line 216 is from the second external electrical line 226 electrically isolated. The first external electrical line 216 is with the first areas 214a . 214b the light-emitting modules 210a . 210b , each with a first light-emitting device 212a . 222a are electrically connected, electrically connected and is used for a module external interconnection of the first light-emitting components 212a . 222a used. The second external electrical line 226 is with the second areas 224a . 224b the light-emitting modules 210a . 210b , each with a second light-emitting device 212a . 222a are electrically connected, electrically connected and is for a module-external interconnection of the second light-emitting components 212b . 222b used. This enables the first regions of the light-emissive modules of the light-emitting device to be independently and differently controllable from the second regions of the light-emitting modules of the light-emitting device.

Furthermore, the first light-emitting module 210a a first ladder frame 220a on and the second light-emitting module 210b has a second lead frame 220b on. The first ladder frame 220a is at a close distance to the second leadframe 220b arranged, for example, with a distance in the range of 50 microns to 200 microns.

Illustratively, the light-emitting device has a plurality of light-emitting modules, for example 24 light-emitting modules. The plurality of light-emitting modules are arranged in at least two rows, for example, the 24 light-emitting modules are arranged in 4 rows G1, G2, G3, G4. Each row has at least two light-emitting modules, for example four, six or eight light-emitting modules, for example, the 24 light-emitting modules are arranged in 4 rows of 6 light-emitting modules. In other words, the light-emitting device may have a plurality, for example 4, rows of light-emitting modules, wherein the rows and / or light-emitting modules of a row may be electrically connected in series. Each row can have several, for example 6, light-emitting modules. Alternatively or additionally, a part of the rows can be electrically connected independently of another part of the rows. For example, each row is electrically isolated from the other rows. Alternatively, at least one of the rows is electrically connected to another row of the plurality of rows of light-emitting modules.

In various embodiments, the plurality of light-emitting modules are arranged such that in each case a first light-emitting component is arranged directly between at least two second light-emitting components, and / or vice versa. By way of example, a first light-emitting component is arranged directly between two second light-emitting components when viewed in a horizontal direction, in a vertical direction and / or in at least one diagonal direction. In other words, the respective first light-emitting devices of the respective light-emitting modules of the light-emitting device are disposed in close proximity to second light-emitting devices. Analogously, alternatively or additionally, the plurality of light-emitting modules are arranged such that in each case a second light-emitting component is arranged directly between at least two first light-emitting components.

Illustratively, the light-emitting device thus has a laterally alternating or alternating arrangement of light-emitting components which can emit light of a first correlated color temperature, for example, and light-emitting components which can emit light of a second correlated color temperature, for example. Thus, a homogeneous distribution and / or mixture of the emissive light of the first light-emitting components and the second light-emitting components is made possible. Since the leadframes of the light-emitting modules can be arranged closer together or in a more dense packing, a more homogeneous, i.e. improved, light mixing of the emissive light of the respective light-emitting devices in the light-emitting device allows.

The light-emitting device is formed, for example, such that the emissive light of the light-emitting device has a luminous flux in the range of 2500 lm to 3500 lm.

In various embodiments, the light-emitting modules are arranged in the light-emitting device such that the light-emitting surface of the light-emitting device has a diameter in the range of about 17 mm to about 20 mm.

3 FIG. 12 shows a flowchart of a method of manufacturing a light-emitting module according to various embodiments. The light-emitting module produced by the method, the light-emitting component, the lead frame and / or the converter material may substantially coincide with one of the embodiments described above.

The procedure 300 for manufacturing a light-emitting module has a forming 302 a first light-emitting device on or over a first region of a lead frame, forming 304 a second light-emitting device on or over a second region of the leadframe, an application 306 a first converter material on or over the first light-emitting device and an application 308 a second converter material on or over the second light-emitting device and / or on or above the first light-emitting device.

The first light-emitting component is electrically connected to the first region of the leadframe and the second light-emitting component is electrically conductively connected to the second region of the leadframe.

The first region of the leadframe is formed to be electrically isolated from the second region of the leadframe. The first converter material is formed such that it is different from the second converter material.

This makes it possible to produce a light-emitting module that is designed in such a way that a first mixed light can be emitted from the first region of the leadframe and a second mixed light can be emitted from the second region of the leadframe, the mixed light each comprising a mixture of the emissive light of the Light-emitting device and from the emissive, wavelength-converted light of the at least one converter material is.

The application 306 a first converter material on or above the first light-emitting device becomes, for example, after application 308 a second converter material carried out on or above the second light-emitting device and / or on or above the first light-emitting device.

In other words, the first converter material is applied on or above the second converter material and on or above the first region of the leadframe of the light-emitting module on which the first light-emitting component is arranged such that the first converter material in the beam path of the Mixed light from the emissive light of the first light-emitting device and the emissive, wavelength-converted light of the second converter material is arranged.

The application 306 of the first converter material on or above the first light-emitting device is carried out, for example, by means of an injection molding method, a coating, a spraying, a casting method or lithographically.

The second converter material is applied to or over the second light-emitting component and / or on or above the first light-emitting component. In other words, the second converter material is applied to the lead frame of the light-emitting module such that the exposed surface of the first

Light-emitting device on the lead frame and the exposed surface of the second light-emitting device are substantially completely surrounded by the second converter material, for example, except for an opening portion in the converter material for the electrical contacting of the light-emitting device, for example a Wire-bond, or a heat-dissipation area. Additionally or alternatively, the second converter material is applied, for example, on the lead frame of the light-emitting module such that the second converter material in the beam path of the mixed light from the emissive light of the first light-emitting device and the second light-emitting device is arranged.

The application 308 of the second converter material on or above the second light-emitting device and / or on or above the first light-emitting device is carried out, for example, by means of a potting method, a brushing or pouring. Alternatively, the application is 306 the first converter material on or above the first light-emitting device prior to application 308 of the second converter material is performed on or above the second light-emitting component and / or on or above the at least one first light-emitting component. The application 306 of the first converter material is, for example, by means of spraying and applying 308 of the second converter material is carried out by means of a brushing or pouring. This allows a direct contact or a closer, indirect contact of the first converter material with the lead frame. Thus, a better dissipation or dissipation, the heat generated by the first converter material in the lead frame, causes.

Alternatively, the application is 306 of the first converter material and the application 308 of the second converter material simultaneously, for example, respectively on or above the first region of the leadframe with the first light-emitting device and on or above the second region of the leadframe with the second light-emitting device, the first region extending from the second region by means of a second Dam structure are physically and optically separated from each other. The dam structure can essentially correspond to one of the described exemplary embodiments.

The procedure 300 For producing the light-emitting module, further forming may be used a waveguide layer, wherein the waveguide layer may be formed substantially in accordance with an embodiment described above.

Furthermore, the method 300 for producing the light-emitting module, a forming a protective layer, wherein the protective layer may be formed substantially in accordance with an embodiment described above.

4 shows in schematic plan views the respective structure of the light-emitting module at different steps of a method for producing a light-emitting module according to various embodiments. The light-emitting module and method may be formed substantially in accordance with an embodiment described above.

As in 4 is a light-emitting module 402 with a ladder frame 410 which is a first area 412 with two lead frame sections, and a second section 414 with two lead frame sections provided.

After training 302 For example, applying or arranging at least the, for example, two, first light-emitting components 420a . 420c on or above the first area 412 of the ladder frame 410 and forming, for example applying or arranging, 304 of the second light-emitting device 420b on or over the second area 414 of the ladder frame 410 , becomes a light-emitting module 404 obtained, the two first light-emitting devices 420a . 420c with the first area 412 of the ladder frame 410 are connected and the second light-emitting devices 420b with the second area 414 of the ladder frame 410 connected is.

Furthermore, for example, several wires 418 provided, which are each arranged, an electrical connection between the light-emitting components 420a . 420b and form the respective lead frame sections.

Furthermore, the two first light-emitting components 420a . 420c by means of a wire 418 be electrically connected to each other, for example, electrically in series or in parallel.

After application 306 of the first converter material 430 on or above the first light-emitting device and the deposition 308 of the second converter material 440 on or above the second light-emitting device and / or on or above the at least one first light-emitting device becomes a light-emitting module 406 obtained, wherein the first region of the lead frame and thus the first light-emitting device of the first converter material 430 and the second converter material 440 is substantially covered or surrounded and the second region of the lead frame and thus the second light-emitting device of the second converter material 440 essentially completely covered or surrounded.

5 FIG. 12 is a flowchart of a method of operating a light-emitting module according to various embodiments. FIG. The light-emitting module produced by the method, the light-emitting component, the lead frame and / or the converter material may substantially coincide with one of the embodiments described above.

The procedure 500 for operating the light-emitting module, driving the first light-emitting component and the second light-emitting component such that the light that can be emitted by the light-emitting module has a color valence that can be set along a connecting line between two predefined color valencies , In other words: the procedure 500 for driving the light-emitting module has a drive 502 of the first light-emitting device and the second light-emitting device such that the light which can be emitted by the light-emitting module has a first color temperature or color valence, and a drive 504 the first light-emitting component and the second light-emitting component such that the light which can be emitted by the light-emitting module has a second color temperature or color valence.

In one embodiment, the light-emitting module is operated such that the light that can be emitted by the light-emitting module is a warm-white light, for example with a correlated color temperature in the range from approximately 2500 K to approximately 3500 K, for example an extremely warm light. white light having a correlated color temperature of, for example, about 2743 K. In other words, the light-emitting module is operated such that the first light-emitting device by supplying an electric current to the electrical leads of the first region of the lead frame of the light-emitting Module emitted light. The second light-emitting device does not emit light. In other words, the first light emitting device of the light-emitting module is driven so that it emits 100% of its emissive light, ie maximum intensity, and the second light-emitting device of the light-emitting module is driven such that it does not emit light.

In another embodiment, the light-emitting module is operated such that the light emanatable from the light-emitting module is a cold-white light, for example with a correlated color temperature in the range of about 8000 K to about 11000 K, for example 5235 K. for example, an extremely cold-white light having a correlated color temperature of, for example, about 10,700 K. In other words, the light-emitting module is operated such that the second light-emitting device by supplying an electric current to the electrical leads of the second region is turned on the lead frame of the light-emitting module and the first light-emitting device is switched on by supplying an electric current to the electrical leads of the first portion of the lead frame of the light-emitting module in the amount of 50% for a cold-white light or an extre m-cold white light stays off.

In other words:
In order for the light-emitting module to emit an emissive cold-white light, the second light-emitting component of the light-emitting module can be driven such that it emits 100% of its emissable light, ie maximum intensity. The first light-emitting device of the light-emitting module is driven so that it emits 50% of its emissive light.

In order for the light-emitting module to emit an extremely cold-white, emissive light, the second light-emitting device of the light-emitting module may be driven to emit 100% of its emissive light, i. maximum intensity, emitted. The first light-emitting device of the light-emitting module can be driven so that it does not emit light, i. optically inactive.

In another embodiment, the light-emitting module is operated such that the light emanatable from the light-emitting module is a natural-white light, for example, having a correlated color temperature in the range of about 4000 K to about 5000 K, for example about 4183 K ,

In other words:
The light-emitting module is operated such that the first light-emitting device is turned on by supplying an electric current to the electrical leads of the first region of the lead frame of the light-emitting module and the second light-emitting device by means of supplying light-emitting device of an electric current is connected to the electrical leads of the second region of the lead frame of the light-emitting module. In other words, the first light-emitting component of the light-emitting module is driven such that it emits 100% of its emissable light, ie maximum intensity, and the second light-emitting component of the light-emitting module is driven in such a way that it 100% of its emissable light, ie maximum intensity, emitted.

6A and 6B FIG. 12 shows images of the intensity distribution of the emissive light of a light-emitting module according to various embodiments in operation at different distances therefrom. FIG. The light-emitting module may be formed substantially in accordance with an embodiment described above.

6A shows a plan view of a light-emitting module in operation at a distance of 4.33 mm from the light-emitting surface of the light-emitting module. Here are on the X-axis 602 the length (in mm) and on the Y-axis 604 the width (in mm). From the figure, a single point light source for the light-emitting module having a first light-emitting device and a second light-emitting device can be seen.

6B shows a plan view of a light-emitting module with a distance of 0.33 mm from the surface of the light-emitting module. Here are on the X-axis 602 the length (in mm) and on the Y-axis 604 the width (in mm). The figure shows the first light-emitting component and the second light-emitting component of the light-emitting module as distinguishable point light sources.

7a . 7B show a portion of a color standard panel with adjustable correlated color temperatures of a light-emitting module according to various embodiments and corresponding views of the light-emitting module at the respective color temperatures. The light-emitting module may be formed substantially in accordance with an embodiment described above.

7A illustrates the along the connecting line between a first color location 710a and a second color location 750a adjustable color loci, the emissive light, which can be adjusted by means of the driving of the first light-emitting device and the second light-emitting device.

The first color location 710a and the second color location 750a illustrate the two opposite maximum predetermined color locations that the emissive light of the light-emitting module of the embodiment may have. The color location 710a corresponds to a correlated color temperature of about 10700 K, the second light-emitting device emitting 100% of its emissive light, ie maximum intensity, and the first light-emitting device emitting no light, and the color locus 750a corresponds to a correlated color temperature of about 2743 K, wherein the first light-emitting device emits 100% of its emissive light, ie maximum intensity, and the second light-emitting device emits no light. The appropriate supervision 710b respectively. 750b on the light-emitting module in operation at this color temperature is in 7B illustrative.

By controlling the electric current to the electrical leads of the first light-emitting device and the second light-emitting device, the correlated color temperature of the light of the light-emitting module can be adjusted.

For example, for a color location, that of a correlated color temperature 720a at 5235 K, the first light-emitting device is driven so that it emits 50% of its maximum emissive light intensity and the second light-emitting device is driven to emit 100% of its emissive light, ie maximum intensity ,

For example, for a color location, a correlated color temperature 730a of approximately 4183 K corresponds to the first light-emitting device being driven so that it emits 100% of its emissive light, ie maximum intensity, and the second light-emitting device are driven so that it is 100% of its emissive light, ie maximum intensity , emitted. The appropriate supervision 730b on the light-emitting module in operation at this color temperature is in 7B illustrative. For example, for a color location, a correlated color temperature 740a of approximately 3500 K, the first light-emitting device is driven to emit 100% of its emissive light, ie, maximum intensity, and to drive the second light-emitting device to emit 50% of its emissive light.

8A shows schematic views 800a the light-emitting device according to an embodiment in operation. In this embodiment, the light-emitting module of the type 1 used in the light-emitting device is as shown in FIG 1A illustrated.

8B shows comparative pictures 800b the intensity distribution between a conventional light-emitting device 810 and a light-emitting device 820 at a distance of 4.33 mm from the surface of the light-emitting device. In this embodiment, that is the light-emitting device 820 used type 1 light-emitting module, as in 1A illustrated.

In the comparison pictures 800b the intensity distribution are on the X axis 602 the length (in mm) and on the Y-axis 604 the width (in mm). From the picture 810 , in which the emissive light of a conventional light-emitting device is illustrated, point light sources and thus unmixed light are recognizable from the light-emitting devices. From the

Illustration 820 1, in which the emissive light of a light-emitting device of the embodiment is illustrated, the different point light sources, ie, the light-emitting devices, are not recognizable, showing an improved and more homogeneous light mixture of the emissive light of the light-emitting devices.

8C shows a section 800c from the color standard panel for the light-emitting device 820 , In this embodiment, that is the light-emitting device 820 used type 1 light-emitting module, as in 1A illustrated.

As in 8C is illustrative, the light-emitting device emits an emissive light, the correlated color temperature 830 corresponds to the correlated color temperature compared to the emissive light of a single light-emitting module 840 corresponds, is shifted. This shift of the correlated color temperature arises because of the dense arrangement of the light-emitting modules in the light-emitting device and is called a cross-talk effect. From the illustrated portion of the color standard chart, a correlated color temperature shift of about 700 K (about 4183 K after about 3488 K) to warm white light is evident. The cross-talk effect can be compensated with the design parameters of the light-emitting modules or device and / or by means of the electrical energy supplied to the light-emitting components.

9A shows schematic views 900a the light-emitting device according to an embodiment in operation. In this embodiment, the type 3 light-emitting module used in the light-emitting device is as shown in FIG 1C illustrated.

9B shows the intensity distribution 900b of the light-emitting device with a pitch of 4.33 mm from the surface of the light-emitting device according to an embodiment. In this embodiment, the type 3 light-emitting module used in the light-emitting device is as shown in FIG 1C illustrated. From the picture 900b the different point light sources from the light-emitting components are no longer recognizable, which shows a better homogeneous light mixing of the emissive light of the light-emitting components.

9C shows a portion of a color standard panel for a light-emitting device according to an embodiment. In this embodiment, the type 3 light-emitting module used in the light-emitting device is as shown in FIG 1C illustrated.

As in 9C is illustrative, creates a cross-talk effect between the respective light-emitting modules, wherein the light-emitting device emits an emissable light, the correlated color temperature 920 corresponds to the correlated color temperature compared to the emissive light of a single light-emitting module 930 corresponds, is shifted. From the color standard panel section, a correlated color temperature shift of less than about 100 K (about 4183 K after about 3945 K) is indicated after the warm white light. It shows that the light-emitting device having Type 3 light-emitting modules instead of Type 1 has less cross-talk effect of the light-emitting modules.

LIST OF REFERENCE NUMBERS

100a, 100b, 100c

 Light-emitting module

100d, 100e, 100f

 Light-emitting module

105

 Mold material

110

 leadframe

112, 114, 116

 Areas of the lead frame

118

 wire

111a, 113a, 115a

 Lead frame sections of the lead frame

117a, 119a, 121a

Lead frame sections of the lead frame

111b, 113b, 115b

 Power Input / Output

117b, 119b, 121b

 Power Input / Output

120a, 120b

 Light-emitting device

130, 140

converter material

150

 protective layer

160

 dam structure

170

 Dividing line

200, 202

 Light-emitting device

210a, 210b

 Light-emitting module

212a, 212b, 222a, 222b

 Light-emitting device

214a, 214b, 224a, 224b

 Areas of the light-emitting module

216, 226

 conductor path

220a, 220b

 leadframe

300

 method

302, 304, 306, 308,

 steps

400

 method

402, 404, 406,

 steps

500

 method

502, 504

steps

600a, 600b

 Pictures of the intensity distribution

602, 604

 axes

700a, 700b

 Farborttafel

710b, 730b, 750b,

 Pictures of the intensity distribution

710a, 720a, 730a, 740a, 750a

 color stimulus

800a

 Operation simulation of the light-emitting device

800b, 810, 820

Pictures of the intensity distribution

800c

 Farborttafel

802, 804

axes

830, 840

 color stimulus

900a

 Operation simulation of the light-emitting device

900d

Pictures of the intensity distribution

900c, 900e

 Farborttafel

902, 904, 906, 920, 930

color stimulus

Claims (15)

Light-emitting module ( 100a . 100b . 100c . 100d . 100e . 100f ) comprising: - a lead frame ( 110 ); A first light-emitting component ( 120a ), which in a first area ( 112 ) of the lead frame ( 110 ) is arranged and connected to this electrically conductive; A second light-emitting component ( 120b ), which in a second area ( 114 ) of the lead frame ( 110 ) and electrically connected thereto is conductively connected, the first area ( 112 ) of the lead frame ( 110 ) from the second area ( 114 ) of the lead frame ( 110 ) is electrically isolated; A first converter material ( 130 ) on or above the first light-emitting device ( 120a ), - a second converter material ( 140 ) on or above the second light-emitting device ( 120b ) and / or on or above the first light-emitting device ( 120a ), wherein the first converter material ( 130 ) different from the second converter material ( 140 ). Light-emitting module ( 100a . 100b . 100c . 100d . 100e . 100f ) according to claim 1, wherein the first light-emitting component ( 120a ) and the second light-emitting component ( 120b ) are spaced apart in a range of 200 μm to 600 μm. Light-emitting module ( 100a . 100b . 100c . 100d . 100e . 100f ) according to claim 1 or 2, wherein the first converter material ( 130 ) and / or the second converter material ( 140 ) in the optical path of the emissive light of the first light-emitting device ( 120a ), and the second converter material ( 140 ) in the beam path of the second light-emitting component ( 120b ) is arranged. Light-emitting module ( 100a . 100b . 100c . 100d . 100e . 100f ) according to one of claims 1 to 3, wherein at least one further, first light-emitting component ( 120a ) in the first area ( 112 ) of the lead frame ( 110 ) is arranged and connected to this electrically conductive. Light-emitting module ( 100a . 100b . 100c . 100d . 100e . 100f ) according to one of claims 1 to 4, wherein the emissive light of the first light-emitting component ( 120a ) with the emissive light of the first converter material ( 130 ) and / or the second converter material ( 140 ) is a warm-white light, and the emissive light of the second light-emitting device ( 120b ) with the emissive light of the second converter material ( 140 ) is a cold-white light. Light-emitting module ( 100a . 100b . 100c . 100d . 100e . 100f ) according to one of claims 1 to 5, wherein the module ( 100a . 100b . 100c . 100d . 100e . 100f ) a third light-emitting component ( 120c ), which in a third area ( 116 ) of the lead frame ( 110 ) is arranged and electrically conductively connected thereto, wherein the first light-emitting component ( 120a ) is formed such that a red light is emitted, the second light-emitting component ( 120b ) is formed such that a green light is emitted, and the third light-emitting component ( 120c ) is formed such that a blue light is emitted. Light-emitting module ( 100a . 100b . 100c . 100d . 100e . 100f ) according to one of claims 1 to 6, wherein the light-emitting module ( 100a . 100b . 100c . 100d . 100e . 100f ) further a dam structure ( 160 ), which between a portion of the lead frame ( 110 ) with a light-emitting component and a further region of the leadframe ( 110 ) is arranged with a light-emitting component, wherein the dam structure ( 160 ) is formed such that these areas are optically separated from each other. Light-emitting module ( 100a . 100b . 100c . 100d . 100e . 100f ) according to one of claims 1 to 7, wherein the first converter material ( 130 ) between the first light-emitting component ( 120a ) and the second converter material ( 140 ) is arranged. Light-emitting module according to one of claims 1 to 5 and 7 to 8, wherein the first converter material ( 130 ), the second converter material ( 140 ), the first light-emitting device ( 120a ) and the second light-emitting component ( 120b ) are designed such that the of the module ( 100a . 100b . 100c . 100d . 100e . 100f ) is a homogeneous white light having a color point on the Planck curve and / or adjustable along the Planck curve. Light-emitting device ( 200 ) comprising: - at least one first light-emitting module ( 210a ) and a second light-emitting module ( 210b ), the light-emitting modules according to one of claims 1 to 9; - wherein the first light-emitting component ( 212a ) of the first light-emitting module ( 210a ) with the first light-emitting component ( 212b ) of the second light-emitting module ( 210b ) is electrically connected in series; and - wherein the second light-emitting component ( 222a ) of the first light-emitting module ( 210a ) with the second light-emitting component ( 222b ) of the second light-emitting module ( 210b ) is electrically connected in series. Light-emitting device ( 200 ) according to claim 10, comprising a plurality of light-emitting modules, wherein in each case a first light-emitting module emitting component is arranged directly between at least two second light-emitting components and / or in each case a second light-emitting component is arranged directly between at least two first light-emitting components. Light-emitting device ( 200 ) according to claim 10 or 11, wherein the first light-emitting module ( 210 ) a first lead frame ( 214 ) and the second light-emitting module ( 220 ) a second lead frame ( 224 ), wherein the first lead frame ( 214 ) at a distance to the second lead frame ( 224 ) is arranged. Light-emitting device ( 200 ) according to one of claims 10 to 12, comprising a plurality of light-emitting modules, wherein the plurality of light-emitting modules are arranged in at least two rows, wherein a row each having at least two light-emitting modules. Method of manufacturing ( 300 ) of a light-emitting module comprising the following steps: - forming ( 302 ) of a first light-emitting device on or over a first region of a leadframe, wherein the first light-emitting device is electrically conductively connected to the first region of the leadframe, 304 ) a second light-emitting device on or over a second region of the leadframe, wherein the second light-emitting device is electrically connected to the second region of the leadframe, the first region of the leadframe being electrically isolated from the second region of the leadframe; - application ( 306 ) of a first converter material on or above the first light-emitting component, - application ( 308 ) of a second converter material on or above the second light-emitting device and / or on or above the first light-emitting device, wherein the first converter material is different from the second converter material. Method of operation ( 500 ) of the light-emitting module, the light-emitting module according to any one of claims 1 to 9, wherein the first light-emitting device and the second light-emitting device are driven so that the light emitted from the light-emitting module light a Farbvalenz has, which is adjustable along a connecting line between two predetermined Farbvalenzen.

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