JP2016119381A - LED light-emitting module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED light-emitting module whose color mixture characteristic is improved.SOLUTION: An LED light-emitting module 1 includes: a substrate 110; a transparent first dam material 111; an opaque second dam material 112 that is disposed outside the first dam material 111; a plurality of white light LEDs 125 that are disposed only in a first region set inside the first dam material 111; a phosphor resin 116 disposed in the first region so as to protect the plurality of white light LEDs 125; a plurality of second LEDs that are disposed only in a second region set between the first dam material 111 and the second dam material 112; first electrodes 120, 121 for supplying voltage to the plurality of white light LEDs 125; and second electrodes 130, 131 for supplying voltage to the plurality of second LEDs.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an LED light-emitting module, and more particularly to an LED light-emitting module that can adjust the color of light by a single unit.

  2. Description of the Related Art In recent years, LEDs, which are semiconductor elements, have long life and excellent driving characteristics, and are widely used for illumination and the like because they are small in size, have high emission efficiency, and have bright emission colors.

  There is known a light emitting device in which a light emitting element is disposed on a substrate, an irradiation area is divided into a first irradiation area in the center and a second irradiation area surrounding the first irradiation area, and the both irradiation areas are separated by a translucent wall. (For example, refer to Patent Document 1).

JP 2013-51375 A

  However, since the light transmitting wall covers the light emitting element, the phosphor resin is not applied to the light emitting element embedded in the light transmitting wall. Therefore, a streak of the color of light emitted from the light emitting element is seen between the first irradiation region and the second irradiation region, and the color mixing property is lowered.

  Then, an object of this invention is to provide the LED light emitting module which enabled it to eliminate the problem mentioned above.

  Another object of the present invention is to provide an LED light emitting module with improved color mixing.

  An LED light emitting module according to the present invention is set inside a substrate, a transparent first dam material, an opaque second dam material arranged outside the first dam material, and the first dam material. A plurality of white light LEDs disposed only in the first region, a phosphor resin disposed in the first region so as to protect the plurality of white light LEDs, and a first dam material A plurality of second LEDs arranged only in the second region set between the first dam material and the second dam material; a first electrode for supplying a voltage to the plurality of white light LEDs; An LED light emitting module comprising: a second electrode for supplying a voltage to a plurality of second LEDs. It is characterized by that.

  In the LED light emitting module according to the present invention, the first dam material preferably contains a scattering material.

  In the LED light emitting module according to the present invention, a part of the first electrode is disposed between the first dam material and the second dam material, and a metal wire that connects the plurality of second LEDs is, It is preferable that the first dam material and the second dam material are disposed so as to straddle part of the first electrode.

  In the LED light emitting module according to the present invention, the substrate has a metal base between the first opening in which the metal base is exposed inside the first dam material, and the first dam material and the second dam material. A plurality of white light beams in a first region provided in the first opening, the second opening having a base exposed, and an annular wall disposed around the first opening; LEDs are arranged on the metal base, and a plurality of second LEDs are arranged on the metal base in the second region provided in the second opening, and the first LED is placed on the upper part of the annular wall. It is preferable that the first dam material is disposed above the first electrode.

  In the LED light emitting module according to the present invention, the plurality of second LEDs are LEDs for white light, and are provided between the first dam material and the second dam material so as to protect the plurality of second LEDs. It is preferable to further have a second phosphor resin disposed on the surface.

  In the LED light emitting module according to the present invention, the plurality of second LEDs include a red LED, a green LED, and a blue LED, and the second electrode is a red electrode for supplying a voltage to the red LED, a green LED A green electrode for supplying a voltage to the LED and a blue electrode for supplying a voltage to the blue LED, and a red metal wire for connecting the red LEDs straddles the green electrode and the blue electrode It is preferable that they are arranged as described above.

  In the LED light-emitting module according to the present invention, the red metal wire is preferably disposed so as to straddle the green electrode and the blue electrode via the metal bump.

  In the present invention, the inner mounting region and the outer mounting region are set by the transparent inner dam material containing the scattering material and the opaque outer dam material. Further, the plurality of LEDs are arranged only in the inner mounting region and the outer mounting region, and the LED covered with the inner dam material or the outer dam material is not provided. Therefore, according to the present invention, it is possible to provide an LED light emitting module with improved color mixing.

(A) is a top view of the LED light emitting module 1 which concerns on this invention, (b) is AA 'sectional drawing of (a). It is a transmission top view of the LED light emitting module 1 which permeate | transmitted the 1st fluorescent substance resin 116, the 2nd fluorescent substance resin 117, and the resist layer 118. FIG. It is a figure for demonstrating a wiring pattern. It is an enlarged view of the location B shown in FIG. It is a figure for demonstrating the manufacturing method of the LED light emitting module. (A) is a top view of the LED light emitting module 2 which concerns on this invention, (b) is CC 'sectional drawing of (a). It is a figure for demonstrating the electrode for green LED235 arrange | positioned at the 2nd mounting area | region 203-1 to the 5th mounting area | region 203-4. It is a figure for demonstrating the electrode for red LED245 arranged in the 2nd mounting area | region 203-1-the 5th mounting area | region 203-4. It is a figure for demonstrating the electrode for blue LED255 arrange | positioned at the 2nd mounting area | region 203-1-the 5th mounting area | region 203-4. (A) is the enlarged view of the location D shown to Fig.6 (a), (b) is the enlarged view of the location E shown to Fig.6 (a). (A) is a top view of the LED light emitting module 3 which concerns on this invention, (b) is FF 'sectional drawing of (a). It is a top view of the board | substrate 310 with which the wiring pattern was provided. It is a figure for demonstrating the manufacturing method of the LED light emitting module. (A) is a top view of the LED light emitting module 4 which concerns on this invention, (b) is GG 'sectional drawing of (a). It is a top view of the board | substrate 410 with which the wiring pattern was provided.

  Hereinafter, an LED light emitting module according to the present invention will be described with reference to the drawings. However, it should be noted that the technical scope of the present invention is not limited to these embodiments, but extends to the invention described in the claims and equivalents thereof.

  Fig.1 (a) is a top view of the LED light emitting module 1 which concerns on this invention, FIG.1 (b) is AA 'sectional drawing of Fig.1 (a).

  The LED light emitting module 1 includes a substrate 110, various electrodes, a first dam material 111, a second dam material 112, blue LEDs 125 and 135 (see FIG. 2), various phosphor resins, and the like. The LED light emitting module 1 is attached to another lighting fixture or the like using a guide hole 113 provided at the end.

  The substrate 110 is formed by laminating a circuit substrate 110b on a metal substrate 110a. The circuit board 110b is provided with an opening 110-1 as a first opening and openings 110-2 to 110-5 as second openings. The metal substrate 110a is exposed from each of the openings 110-1 to 110-5 (see FIG. 2).

  Blue LEDs 125 and 135 are arranged on the metal substrate 110a exposed from the openings 110-1 to 110-5, as will be described later, and various electrodes, the first dam material 111, and the first dam material 111 are formed on the upper surface of the circuit board 110b. Two dam materials 112 are arranged. The metal substrate 110a is preferably formed of a material having high heat dissipation properties such as aluminum so that the heat generated by the blue LEDs 125 and 135 disposed on the metal substrate 110a can be efficiently dissipated.

  The first dam material 111 and the second dam material 112 are arranged concentrically. The first dam material 111 is made of a transparent silicone resin and contains a scattering material. The second dam material 112 is made of an opaque silicone resin mixed with white particles. A first phosphor resin 116 is formed inside the first dam material 111, and a second phosphor resin is formed in a region between the first dam material 111 and the second dam material 112. 117 is formed. Around the second dam material 12, a resist layer 118 is applied to portions other than an anode electrode and a cathode electrode for each LED described later.

  Around the second dam material 117, an anode electrode 120 and a cathode electrode 121 for supplying a voltage to the blue LED 125 arranged in the first mounting region 102 are arranged. Further, around the second dam material 112, an anode electrode 130 and a cathode electrode 131 for supplying a voltage to the blue LED 135 disposed in the second mounting region 103-1 to the fifth mounting region 103-4 are disposed. Has been.

  FIG. 2 is a transmission plan view of the LED light emitting module 1 through which the first phosphor resin 116, the second phosphor resin 117, and the resist layer 118 are transmitted.

  Inside the first dam material 111, a first mounting region 102 corresponding to the opening 110-1 is provided. Further, between the first dam material 111 and the second dam material 112, there are second mounting areas 103-1 to 103-4 corresponding to the openings 110-2 to 110-5, respectively. Is provided.

  Between the second mounting area 103-1 and the fifth mounting area 103-4 and between the third mounting area 103-2 and the fourth mounting area 103-3, the first wiring area 104-1 is provided. And 104-2. Further, the second wiring area 105 is provided between the second mounting area 103-1 and the third mounting area 103-2 and between the fourth mounting area 103-3 and the fifth mounting area 103-4. -1 and 105-2 are provided.

  In the first mounting area 102, a plurality of blue LEDs 125 for white light are arranged. The plurality of blue LEDs 125 are directly bonded to the exposed metal substrate 110a by a die bond material. The blue LEDs 125 are divided into 11 groups of 15 pieces connected in series by metal wires 126. The blue LEDs 125 divided into 11 groups of 15 are connected in parallel between electrodes 122 and 123 described later.

  As described above, the first phosphor resin 116 includes a white light phosphor having a color temperature of 5000 K, and therefore, part of the blue light emitted from the blue LED 125 is absorbed by the phosphor, and wavelength conversion is performed. Yellow light is emitted. Since the blue light emitted from the blue LED 125 and the yellow light subjected to wavelength conversion are mixed, white light having a color temperature of 5000K is emitted from the first mounting region.

  A plurality of blue LEDs 125 for white light are arranged in the second mounting area 103-1 to the fifth mounting area 103-4. The plurality of blue LEDs 135 are directly bonded to the exposed metal substrate 110a by a die bond material. The blue LEDs 135 are divided into 16 groups connected in series by 24 with metal wires 136. Blue LEDs 135 divided into 16 groups of 24 each are connected in parallel between electrodes 132 and 133 described later.

  As described above, the second phosphor resin 117 contains the phosphor for white light having a color temperature of 2700 K. Therefore, part of the blue light emitted from the blue LED 135 is absorbed by the phosphor, and wavelength conversion is performed. Yellow light is emitted. Since the blue light emitted from the blue LED 135 and the yellow light subjected to wavelength conversion are mixed, white light having a color temperature of 2700 K is emitted from the second mounting region 3-1 to the fifth mounting region 3-4.

  In the LED light emitting module 1, white light with a color temperature of 5000K emitted from the first mounting area and white light with a color temperature of 2700K emitted from the second mounting area 3-1 to the fifth mounting area 3-4 are individually supplied. It is possible to control.

  Further, as described above, since the first dam material 111 is transparent and contains a scattering material, white light having a color temperature of 5000 K emitted from the first mounting area, and the second mounting area 3-1 to 3-1. The color mixing property with white light having a color temperature of 2700K emitted from the fifth mounting region 3-4 is improved. Further, since the second dam material 112 is opaque, white light having a color temperature of 2700 K emitted from the second mounting region 3-1 to the fifth mounting region 3-4 passes through the second dam material 112 and is externally supplied. Leakage is prevented and color mixing is improved.

  FIG. 3 is a diagram for explaining a wiring pattern.

  The anode electrode 120 passes through the first wiring region 104-1 and is connected to the electrode 122 disposed around the first mounting region 102 at the lower part of the first dam material 111. The cathode electrode 121 passes through the first wiring region 104-2, and is connected to an electrode 123 disposed opposite to the electrode 122 with the first mounting region 102 interposed therebetween at the lower portion of the first dam material 111. . By applying a voltage of 15 × Vfw1 (forward voltage of the blue LED 125) or more between the anode electrode 120 and the cathode electrode 121, it is possible to light all the blue LEDs 125.

  Since the electrodes 122 and 123 for supplying a voltage to the blue LED 125 are arranged below the first dam material 111, other electrodes for wire bonding with each of the blue LEDs 125 are provided in the first mounting region 102. There is no need to place them. Therefore, the blue LEDs 125 can be densely arranged in the first mounting region 102.

  The anode electrode 130 is connected to an electrode 132 disposed around the first mounting region 103-1 and the second mounting region 103-1. The cathode electrode 131 is connected to the electrode 133 disposed around the third mounting region 103-3 and the fourth mounting region 103-4. By applying a voltage equal to or higher than 24 × Vfw2 (the forward voltage of the blue LED 135) between the anode electrode 130 and the cathode electrode 131, it is possible to turn on all the blue LEDs 135.

  FIG. 4 is an enlarged view of a portion B shown in FIG.

  The blue LED 135 disposed in the second mounting area 103-1 and the blue LED 135 disposed in the fifth mounting area 103-4 are connected across the electrode 122 for the blue LED 125 disposed in the first mounting area 102. ing. At this time, the metal wire 138 has a substantially trapezoidal shape excluding the bottom, and prevents a short circuit with the electrode 122.

  Further, a resist resin 173 is applied between the electrode 122 and the metal wire 138 in order to prevent a short circuit with the electrode 122. Further, the above-described second phosphor resin 117 is applied on the blue LED 135, the metal wire 138, and the resist resin 173.

  FIG. 5 is a diagram for explaining a method of manufacturing the LED light emitting module 1.

  First, as shown in FIGS. 5A and 5B, a circuit in which anode electrodes 120 and 130, cathode electrodes 121 and 131, electrodes 122, 123, 132, and 133 are arranged on the upper surface of a metal substrate 110a. The substrate 110b is stacked.

  As shown in FIG. 5B, the metal substrate 110a is exposed from the openings 110-1 to 110-5 in a state where the metal substrate 110a and the circuit board 110b are stacked. An annular wall 110c is disposed around the opening 110-1. And a part of electrodes 122 and 123 are arrange | positioned at the upper part of the cyclic | annular wall part 110c.

  Next, as shown in FIG. 5C, the second dam material 112 is disposed on the circuit board 110b and each electrode so as to surround the openings 110-2 to 110-5. Further, as shown in FIG. 5 (d), the first dam material 111 is disposed on the upper portion of the electrode disposed on the annular wall portion 110c.

  Thereafter, a plurality of blue LEDs 125 are arranged on the metal substrate 110a in the first mounting region 102 provided in the opening 110-1 (see FIG. 2). A plurality of blue LEDs 135 are arranged on the metal substrate 110a in the second mounting region 103-1 to the fifth mounting region 103-4 provided in the openings 110-2 to 110-5 (FIG. 2). reference).

  The first phosphor resin 116 is protected inside the first dam material 111 to protect the blue LED 125, and the blue LED 135 is protected between the first dam material 111 and the second dam material 112. In this way, the second phosphor resin 117 is formed (see FIG. 1A). As described above, the LED light emitting module 1 is obtained.

  In the LED light emitting module 1, a part of the electrodes 122 and 123 are arranged on the upper part of the annular wall part 110 c arranged around the opening 110-1, and the transparent first dam material 111 is arranged on the upper part. Has been placed. And since the distance from the blue LED125 or blue LED135 becomes far compared with the case where the 1st dam material 111 does not provide the annular wall part 110c, the 1st dam material 111 and the blue LED125 or blue LED135 The proportion of the phosphor existing between the two increases. Therefore, since the ratio of the light incident on the first dam material 111 from each mounting region that has been wavelength-converted by the phosphor can be increased, the first LED directly does not interact with the phosphor from each LED. The amount of light emitted through the dam material 111 can be reduced, and the color mixing property of the LED light emitting module 1 is improved.

  FIG. 6A is a plan view of the LED light emitting module 2 according to the present invention, and FIG. 6B is a cross-sectional view taken along CC ′ in FIG.

  The LED light emitting module 2 includes a substrate 210, various electrodes, a first dam material 211, a second dam material 212, each LED, a phosphor resin 216, and the like. Unlike the LED light emitting module 1, the LED light emitting module 2 includes a plurality of green LEDs 235, a plurality of red LEDs 245, and a plurality of blue LEDs 255 for color light in the second mounting area 203-1 to the fifth mounting area 203-4. Is arranged. Since the other points of the LED light emitting module 2 have the same configuration as the LED light emitting module 1, the description thereof will be appropriately omitted below. Moreover, since the manufacturing method of LED light emitting module 2 is the same as the manufacturing method of LED light emitting module 1, the description is abbreviate | omitted below.

  Around the second dam material 217, an anode electrode 220 and a cathode electrode 221 for supplying a voltage to the blue LED arranged in the first mounting region 202 are arranged. Further, around the second dam material 212, an anode electrode 230 and a cathode electrode 231 for supplying a voltage to the green LED 235 disposed in the second mounting region 203-1 to the fifth mounting region 203-4 are disposed. Has been.

  Further, around the second dam material 212, an anode electrode 240 and a cathode electrode 241 for supplying a voltage to the red LED 245 disposed in the second mounting region 203-1 to the fifth mounting region 203-4 are disposed. Has been. Further, around the second dam material 212, an anode electrode 250 and a cathode electrode 251 for supplying a voltage to the blue LED 255 arranged in the second mounting region 203-1 to the fifth mounting region 203-4 are arranged. Has been.

  Similar to the LED light emitting module 1, a plurality of blue LEDs for white light are arranged in the first mounting region 202, and a phosphor resin 216 is disposed inside the first dam material 211 so as to protect the blue LEDs. Is formed. Accordingly, white light is emitted from the first mounting region 202.

  In the second mounting area 203-1 to the fifth mounting area 203-4, a plurality of green LEDs 235, a plurality of red LEDs 245, and a plurality of blue LEDs 255 for color light are arranged. The plurality of green LEDs 235, the plurality of red LEDs 245, and the plurality of blue LEDs 255 for color light are directly bonded to the exposed metal substrate 210a by a die bond material.

  A protective layer 270 for protecting the plurality of green LEDs 235, the plurality of red LEDs 245, and the plurality of blue LEDs 255 is formed in a region between the first dam material 211 and the second dam material 212. As the protective layer 270, a transparent epoxy resin or silicone resin is used. From the second mounting area 203-1 to the fifth mounting area 203-4, a plurality of green LEDs 235, a plurality of red LEDs 245, and a plurality of blue LEDs 255 can emit each color single color light and mixed light thereof. It is.

  FIG. 7 is a diagram for explaining an electrode for the green LED 235 arranged in the second mounting region 203-1 to the fifth mounting region 203-4.

  The anode electrode 230 is connected to an electrode 232 disposed around the second mounting region 203-1, and the cathode electrode 231 is an electrode 233 disposed around the fourth mounting region 203-3 and the fifth mounting region 203-4. Connected with. The electrode 232 includes a thin electrode 232-1 disposed in the second wiring region 205-1. Similarly, the electrode 233 includes a fine electrode 233-1 disposed in the second wiring region 205-2.

  The green LEDs 235 are divided into eight groups connected in series by 24 by metal wires 236. The green LEDs 235 divided into 8 groups of 24 each are connected in parallel between the fine electrodes 232-1 and 233-1. By applying a voltage of 24 × Vfg (forward voltage of the green LED 235) or more between the anode electrode 230 and the cathode electrode 231, all the green LEDs 235 can be turned on.

  FIG. 8 is a diagram for explaining electrodes for the red LEDs 245 arranged in the second mounting region 203-1 to the fifth mounting region 203-4.

  The anode electrode 240 is connected to the electrode 242 arranged around the second mounting region 203-1, and the cathode electrode 241 is connected to the electrode 43 arranged around the fourth mounting region 203-3. The electrode 242 includes a fine electrode 242-1 disposed in the second wiring region 205-1. Similarly, the electrode 243 includes a thin electrode 243-1 disposed in the second wiring region 205-2.

  The red LEDs 245 are divided into four groups of 24 connected in series by metal wires 246. The red LEDs 245 divided into four groups of 24 each are connected in parallel between the fine electrodes 242-1 and 243-1. All red LEDs 245 can be turned on by applying a voltage of 24 × Vfr (forward voltage of red LED) or more between the anode electrode 240 and the cathode electrode 241.

  FIG. 9 is a diagram for explaining electrodes for the blue LEDs 255 arranged in the second mounting region 203-1 to the fifth mounting region 203-4.

  The anode electrode 250 is connected to an electrode 252 disposed around the second mounting region 203-1 and the third mounting region 203-2, and the cathode electrode 251 is an electrode 253 disposed around the fourth mounting region 203-3. Connected with. The electrode 252 includes a fine electrode 252-1 disposed in the second wiring region 203-1. Similarly, the electrode 253 includes a thin electrode 53-1 disposed in the second wiring region 205-2.

  The blue LEDs 255 are divided into four groups connected in series by 24 metal wires 256. The blue LEDs 255 divided into four groups of 24 are connected in parallel between the thin electrodes 252-1 and 253-1. By applying a voltage equal to or higher than 24 × Vfb (the forward voltage of the blue LED) between the anode electrode 250 and the cathode electrode 251, all the blue LEDs 255 can be lit.

  In the LED light emitting module 2, it is possible to individually control white light and color light by supplying different voltages for the anode electrode and cathode electrode for each color LED.

  Further, as described above, the first dam material 211 is transparent and contains a scattering material, so that the color mixing property is improved.

  10A is an enlarged view of the location D shown in FIG. 6A, and FIG. 10B is an enlarged view of the location E shown in FIG.

  FIG. 10A shows a connection state of the red LED 245 shown in FIG. 8 with the thin electrode 243-1 in the second wiring region 205-2. In the second wiring region 205-2, the red LED 245 and the fine electrode 243 are crossed by the bent metal wire 247 so as to straddle the fine electrode 233-1 for the green LED and the fine electrode 253-1 for the blue LED. 1 is connected.

  Further, in the second wiring region 205-2, the metal bumps 271 are arranged in front of the left and right sides of the second wiring region 205-2 so that the metal wire 247 is not bent. The metal wire 247 is arranged so as to straddle the green LED thin electrode 233-1 and the blue LED thin electrode 253-1 after gaining height by the metal bump.

  Further, in the second wiring region 205-2, in order to prevent a short circuit between the green LED thin electrode 233-1 and the blue LED, a green LED thin electrode 233-1 and a blue LED thin electrode are provided. A resist resin 272 is applied between 253-1 and the metal wire 247. Further, a protective layer 270 is applied on the red LED 245, the metal wire 247, the metal bump 271, and the resist resin 272 to protect each element.

  FIG. 10A shows a case where the metal wire 247 for red LED straddles the thin electrode 233-1 for green LED and the thin electrode 253-1 for blue LED in the second wiring region 205-2. It was. However, the same applies to the case where the metal wire for green LED and the metal wire for blue LED straddle the thin electrode for other color LED.

  FIG. 10B shows a situation in which the red LED 245 shown in FIG. 8 is straddling the electrode 222 for the blue LED 225 for white light arranged in the first mounting region 202 in the first wiring region 204-1. Show.

  The red LED 245 disposed in the second mounting region 203-1 and the red LED 245 disposed in the fifth mounting region 203-4 are connected across the electrode 222 for the blue LED 225 disposed in the first mounting region 202. ing. At this time, the metal wire 248 has a substantially trapezoidal shape excluding the bottom, and prevents a short circuit with the electrode 222.

  Further, a resist resin 273 is applied between the electrode 222 and the metal wire 248 to prevent a short circuit with the electrode 222. Further, a protective layer 270 is applied on the red LED 245, the metal wire 248, and the resist resin 273 to protect each element.

  In FIG. 10B, in the first wiring area 204-1, the metal wire 248 for red LED straddles the electrode 222 for the blue LED 225 for white light arranged in the first mounting area 202. Indicated. However, the same applies to the case where the green LED metal wire and the blue LED metal wire straddle the electrode 222 for the white light blue LED 225 disposed in the first mounting region 2.

  Fig.11 (a) is a top view of the LED light emitting module 3 which concerns on this invention, FIG.11 (b) is FF 'sectional drawing of Fig.11 (a).

  The LED light emitting module 3 includes a substrate 310, various electrodes, a first dam material 311, a second dam material 312, each LED, a first phosphor resin 316, a second phosphor resin 317, and the like. . In the LED light emitting module 3, a ceramic substrate 310 is used, and the other points have the same configuration as that of the LED light emitting module 1.

  The ceramic substrate 310 has high heat dissipation, and can efficiently dissipate heat generated by each LED. Furthermore, unlike the substrate 110 of the LED light emitting module 1, it is possible to reduce the manufacturing cost because it can be configured as a single member rather than a two-member configuration of a metal substrate and a circuit board.

  FIG. 12 is a plan view of the substrate 310 provided with a wiring pattern.

  The substrate 310 is a substantially square substrate provided with guide holes 313. The upper surface of the substrate 310 is flat except for the guide holes 313, and no opening is provided as the circuit substrate 110 b of the substrate 110 in the LED light emitting module 1 has. The anode electrodes 320 and 330, the cathode electrodes 321 and 331, and the electrodes 322, 323, 332, and 333 are provided on the upper surface of the substrate 310, respectively.

  Near the center of the substrate 310, a circular first mounting region 302 surrounded by the electrodes 322 and 333 is provided. Further, outside the first mounting region 302, a second mounting region 303-1 surrounded by the electrode 322 and the electrode 332, and a third mounting region 303-2 surrounded by the electrode 322, the electrode 332, and the electrode 323, Is provided. In addition, on the outside of the first mounting region 302, a fourth mounting region 303-3 surrounded by the electrodes 323 and 333, and a fifth mounting region 303-4 surrounded by the electrodes 322, 323, and 333, Is provided.

  FIG. 13 is a diagram for explaining a method of manufacturing the LED light emitting module 3.

  First, as shown in FIG. 13A, anode electrodes 320 and 330, cathode electrodes 321 and 331, and electrodes 322, 323, 332, and 333 are arranged on the upper surface of the substrate 310.

  Next, as shown in FIG. 13B, the second dam material 312 is arranged on the substrate 310 and each electrode so as to surround the second mounting region 303-1 to the fifth mounting region 303-4. To do. Further, as shown in FIG. 13C, the first dam material 311 is disposed on the substrate 310 and each electrode so as to surround the first mounting region 302.

  Thereafter, a plurality of LEDs are arranged in the first mounting area 302 and the second mounting area 303-1 to the fifth mounting area 303-4 (not shown). Then, the first phosphor resin 316 is formed inside the first dam material 311 so as to protect the LEDs arranged in the first mounting region 302 (see FIG. 11A). In addition, the second phosphor resin is used to protect the LEDs arranged in the second mounting region 303-1 to the fifth mounting region 303-4 between the first dam material 311 and the second dam material 312. 317 are formed (see FIG. 11A). As described above, the LED light emitting module 3 is obtained.

  FIG. 14A is a plan view of the LED light emitting module 4 according to the present invention, and FIG. 14B is a GG ′ cross-sectional view of FIG.

  The LED light emitting module 4 includes a substrate 410, various electrodes, a first dam material 411, a second dam material 412, each LED, a phosphor resin 416, and the like. In the LED light emitting module 4, a ceramic substrate 410 is used as in the LED light emitting module 3, and the other points have the same configuration as that of the LED light emitting module 2. Moreover, since the manufacturing method of LED light emitting module 4 is the same as the manufacturing method of LED light emitting module 3, the description is abbreviate | omitted below.

  FIG. 15 is a plan view of the substrate 410 provided with a wiring pattern.

  The substrate 410 is a substantially square substrate provided with guide holes 413. The upper surface of the substrate 410 is flat except for the guide hole 413, and no opening is provided as the circuit board 210b of the substrate 210 in the LED light emitting module 2 has. The anode electrodes 420, 430, 440, 450, the cathode electrodes 321, 331, 341, 351, and the electrodes 422, 423, 432, 433, 442, 443, 452, 453 are provided on the upper surface of the substrate 410.

  The ceramic substrate 410 has high heat dissipation, and can efficiently dissipate the heat generated by each LED. Furthermore, unlike the substrate 210 of the LED light emitting module 2, it is possible to reduce the manufacturing cost because it can be configured as one member instead of the two members of the metal substrate and the circuit board.

1, 2, 3, 4 LED light emitting module 110, 210, 310, 410 Substrate 111, 211, 311, 411 First dam material 112, 212, 312, 412 Second dam material 116, 316 First phosphor Resin 117, 317 Second phosphor resin 216, 416 Phosphor resin 120, 130, 220, 230, 240, 250, 320, 330, 420, 430, 440, 450 Anode electrode 121, 131, 221, 231, 241 , 251, 321, 331, 421, 431, 441, 451 Cathode electrode 125, 135, 225, 325, 335, 425 Blue LED for white light
235, 435 Green LED
245, 445 Red LED
255, 455 Blue LED

Claims (7)

A substrate,
A transparent first dam material,
An opaque second dam material disposed outside the first dam material;
A plurality of LEDs for white light arranged only in the first region set inside the first dam material;
A phosphor resin disposed in the first region so as to protect the plurality of white light LEDs;
A plurality of second LEDs arranged only in a second region set between the first dam material and the second dam material;
A first electrode for supplying a voltage to the plurality of white light LEDs;
And a second electrode for supplying a voltage to the plurality of second LEDs.   The LED light emitting module according to claim 1, wherein the first dam material contains a scattering material. A portion of the first electrode is disposed between the first dam material and the second dam material;
A metal wire connecting the plurality of second LEDs is disposed so as to straddle a part of the first electrode disposed between the first dam material and the second dam material. The LED light emitting module according to claim 1 or 2. In the substrate, the metal base is exposed between the first opening in which the metal base is exposed inside the first dam material, and the first dam material and the second dam material. A second opening, and an annular wall disposed around the first opening;
In the first region provided in the first opening, the plurality of white light LEDs are disposed on the metal base,
In the second region provided in the second opening, the plurality of second LEDs are disposed on the metal base,
The first electrode is disposed on an upper portion of the annular wall;
The LED light emitting module according to any one of claims 1 to 3, wherein the first dam material is disposed on an upper portion of the first electrode. The plurality of second LEDs are LEDs for white light,
5. The method according to claim 1, further comprising a second phosphor resin disposed between the first dam material and the second dam material so as to protect the plurality of second LEDs. The LED light emitting module according to one item. The plurality of second LEDs include a red LED, a green LED, and a blue LED,
The second electrode includes a red electrode for supplying a voltage to the red LED, a green electrode for supplying a voltage to the green LED, and a blue electrode for supplying a voltage to the blue LED. Including
The LED light emitting module according to any one of claims 1 to 4, wherein a red metal wire connecting the red LEDs is disposed so as to straddle the green electrode and the blue electrode.   The LED light emitting module according to claim 6, wherein the red metal wire is disposed so as to straddle the green electrode and the blue electrode via a metal bump.

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