TWI241693B - Light emitting device packaging structure - Google Patents

Abstract

The present invention is a packaging structure of light emitting device which includes a substrate, a plurality of light emitting devices and a transparent layer. The substrate includes a fillister and a plurality of conducted wires. Each light emitting device is set in the fillister and is conducted by a set of conducted wire correspondingly for emitting at the specific wavelength. The transparent layer fills the fillister and covers the plurality of light emitting devices. The present invention forms a convex at the opposite position of each light emitting device for converging light.

Description

1241693 V. Description of the invention (1) 1. Technical field to which the invention belongs The present invention relates to a packaging structure of a light-emitting element, and more particularly to a packaging structure of a light-emitting diode (LED). 2. The previous technology meets the modern people's vision with the advancement of technology. It is to combine light-emitting components in the same package to produce full-color component packaging structure. The three primary colors of the light-emitting components 11 are introduced into the grooves by pins 15, 17, 19 16 to form an upper edge of the base 14 and therefore a structure. The conventional flat-head package has low luminous brightness. In order to solve the concept of the conventional flat-head package, the figure 1 shows a conventional light-emitting element package structure 20 and a flat-head sealing layer 22 on the upper edge of the base 14, the light elements 11, 12, 2, and 3. ‘Currently glowing requirements. Set the light source in the structure at the same time. Consider the diagram. Know, 12, 13 Set source. Next, the light-transmitting layer 18. > Bai Zhi encapsulated the shortcomings of the full-color light source of the structure of the structure, and the structure of the ball-end package junction structure of the full-color light source was 10 out of phase. I. Figure 1. A light-emitting element packaged in a base 1 4 with a light-transmitting substance and a light-transmitting layer 18 The high packaging structure is called the light source structure of the three primary colors of the light source, which can be full-colored to achieve full color. In the middle of the system, the degree of introduction to the base 14 does not exceed the degree of divergence of the flat-head package, so the shortcomings resulting in the ball-shaped luminous brightness. Please refer to FIG. 2 for a schematic diagram of the structure 20. The conventional ball head is similar to the main one, the main difference is that the light-transmissive surface 24 covers three hair-dressing structures. 'Make white light can be produced in close range: due to the convex color, the viewing distance must be widened to have white light ^^^ 3, Yan Guangzhi's ugliness is still quite obvious. It ’s a problem that the conventional technology is either a flat-head package or an insufficient spherical shell or a poor light mixing effect. ^ * Don't have a package structure to improve the shortcomings of the conventional technology. ', To propose a new third, the invention of the present invention structure, to modify the structure of the invention, a plurality of power to this hair to connect these visible light, and in the gathering of these, all set a good knowledge Another improvement is a pin of the optical system, which leads to power. Light transmission Each luminescence element The convex surface of the present invention aims to provide a full-color flat head package structure with luminous brightness. One object is to provide a light-transmitting layer for a fully-encapsulated structure element. The ball head has a variety of luminescence and a plurality of feet. Each layer is targeted by the light-filling element. Therefore, a light-emitting mixed-light effect structure structure of the light-emitting element is located in the element system and is covered to form a color luminous element with insufficient luminescence. Problems with poor packaging results. Problems with component packaging. It contains visible light from a relative position of the base filled with the groove. Each of the encapsulation structures can increase the luminous brightness and have a groove for covering the plurality of grooves and the inside of the complex and correspondingly emitting a light emitting element with a specific wavelength and a convex surface, in addition to the relative position of the light emitting element. Meanwhile also

Page 6 1241693

The following detailed description of the invention and its implementation modes are shown in Fig. 3 and Fig. 4. Fig. 3 is a broad view of the preferred embodiment of the present invention. The present invention is a light-emitting element package structure 30 = two, three, a base 32, a plurality of light-emitting elements 33, 34, 35, and a light-transmitting light. For convenience of explanation, the content of the present invention is illustrated in FIG. 3 by using three light emitting elements 33, 34, and 35 belonging to three primary colors (RGB). The light-emitting element referred to in the present invention may be a light-emitting diode (Light

Emitting Diode (LED), laser diode (LD) or organic light emitting diode (Qrganic Light Emitting Diode, OLED). The base 32 has a groove 38 and two sets of power pins 4 1, 4 2, 4 3 corresponding to the light-emitting elements 33, 34, and 35. The light-emitting elements 3 3, 3 4, 3 5 are located in the groove 3 8 and are correspondingly connected to the power pins 4 1, 4 2, 4 3. Each light-emitting element is used to excite visible light of a specific wavelength. In a preferred embodiment, the light-emitting element 3 3 is used to emit red light, the light-emitting element 34 is used to emit green light, and the light-emitting element 35 is used to emit blue light. In addition, the power pins of the present invention can be made by a dual in-line method (D IP) or a surface mount method (SMT).

It is restored to the position of the shape, 34, 35, the corresponding convex base 32, etc. These two parts are compared with the structure of the invention at 27 ° C. Flat head package 1241693 V. Description of the invention (4) The light-transmitting layer 3 6 is filled in the grooves 3 8 and 34, 35, and is on each of the light-emitting element faces 44, 45, 46 to converge the light-emitting element 33 Light. Among them, the light-transmitting layer 36 is formed at the same height as the base 32. Then, each light-emitting element phase is made to have convex surfaces 44, 45, and 46, and the light-transmitting layer 36 is bonded to each other. In addition, it can be integrally formed. Please refer to Table 1. Table 1 is a comparison table of brightness of the seal structure of the present invention. Table 1 shows that under the conditions of a temperature of 55 RH% and IF = 20 mA, 10 samples of the book and the conventional flat-head package were added. It was found that the brightness ratio of the package structure of the present invention increased by 58%. The light element 33 is formed by a plurality of convex projections. The visible light emitted can be completed, the surface, and the last higher part. Two. Known flat-head package. The ambient humidity is 10 samples completed. The number of experiments in this table. The brightness of the structure is improved.

Page 8 1241693 V. Description of the invention (5) Table number P P. Brightness (incd) of the invention ^ Brightness (mcd) of the conventional flat-head package ^ VWWVW '' 968 丄 603 · 6+) 2,-883. ' 575.9 ,, 1000 nine 593.3 ^ heart 107U 616.U 956.U 610.4 ,, 6, 966.8 ,, 608.3 <: > 848.2 ^ 616 · heart 926.7 ^ 60L ·% 95 2 ^ 615.7 ,, 10, π 953.4, , 602 ^ Max ^, 107L · 616 · Heart Miru3 848 · 575 ·% 952.61 604.27 ^

Please refer to Table 2. Table 2 is a comparison table of the light mixing effect between the packaging structure of the present invention and the conventional single ball head packaging structure. Table 2 compares the 10 samples manufactured by the present invention with the 10 samples of the conventional single ball head package under the conditions of a temperature of 27 ° C, an ambient humidity of 55RH%, and IF = 20mA. According to the experimental data in this table, it is found that the light mixing effect of the package structure of the present invention is closer to the white light area of the C I E chromaticity coordinate chart than the light mixing effect of the single ball head package structure.

Page 9 1241693 V. Description of the invention (6) Table sample number P The present invention p Known single ball head package p CIE chromaticity coordinate sense axis < CIE chromaticity coordinate cm chromaticity coordinate X axis 〇cm chromaticity coordinate Y axis ^ 1 ^ 0.4148, 0.2923., 0.4783 ,, 0.2682 ,, 0.4173 ^ 0.2802 ^ 0.4614 .. 0.261 heart 0.3692 ^ 0.2998 ,: = 0.509 & 0.290% heart 0.3615, 0.3067, 0.5032 ·) 0.2450., 5 ^ 0.3638 ^ 0.2944 ,, 0.523L · 0.300% 6 ^ 0.4036 ,, 0.3274 ^ 0.4923 ,, 0.2948 ,, 7, 0.378L ·, 0.2955, 0.4551,) 0.2756p heart 0.3726, 0.2933, 0.5078, 0.2816. P% 0.3630 ^ 0.2858 ^ 0.4862 ^ 0.2903 ^ 10 ^ 0.385 l +: l 0.3124 ^ 0.4923 ^-0.2849 ,, Max *) 0.4173 ,, 0.3274 ,, 0.4910 ,, 0.2793p Min ^ 0.3615 *, 0.2802. 0A55U 0.2450 ^ Avg ^ WWvVS · / · on 0.2981 0.5231 0.3009 «

To sum up, compared with the flat head package structure of the conventional technology, the present invention has significantly increased luminous brightness. Compared with the ball head package structure of the present invention, the light mixing effect is also significantly better.

With the above detailed description of the preferred embodiments, it is hoped that the features and spirit of the present invention may be more clearly described, rather than limiting the scope of the present invention with the preferred specific embodiments disclosed above. On the contrary, it is intended to cover various changes and equivalent arrangements in the present invention.

Page 10 1241693 V. Description of Invention (7) Within the scope of the patent to be applied for.

1241693 Brief description of drawings 5. Brief description of drawings Figure 1 is a schematic diagram of a conventional light emitting device package structure. FIG. 2 is a schematic diagram of a conventional light emitting element ball head packaging structure. FIG. 3 is a schematic diagram of a light emitting device package structure according to a preferred embodiment of the present invention. Figure 4 is a top view of the light-emitting element packaging structure in Figure 3. Six, the description of the symbol 3 2: the base 36: the light-transmitting layer 43: the power pin 30: the light-emitting element packaging structure 33, 34, 35: a plurality of light-emitting elements 38 : Grooves 41, 42, 44, 45, 46

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Claims (1)

1241693 VI. Patent application scope Diode, LED) 〇7. The light emitting device package structure described in item 1 of the patent application scope, wherein the plurality of light emitting devices are organic light emitting diodes (〇rganic Light Emitting Diode, 0LED) . 8. The light-emitting element package structure described in item 1 of the scope of patent application, wherein the plurality of light-emitting elements are laser diodes (Laser Diode LD) ° 9 · As described in item 1 of the scope of patent application The light-emitting element package structure, wherein the power pins are made by a dual in-line method (DIP). 10 · The light-emitting element package structure as described in item 1 of the stated patent, wherein the power pins such as Rong are made by surface mount (SMT). 11. The light-emitting element packaging structure according to item 丨 in the scope of application for a patent, wherein the light-transmitting layer is integrally formed with the convex surfaces. 12. The light-emitting element packaging structure as described in the 11th member of the scope of patent application, wherein the transparent layer is first formed as high as the upper edge of the base, then the convex surfaces are formed, and the two parts are joined . Page 14