TW201014447A - Package structure of full-color LED with driver mechanism - Google Patents

Abstract

A package structure of full-color LED with driver mechanism includes an IC chip, a red LED dice, a green LED dice, a blue LED dice, and corresponding current limiting resistors. The IC chip has driver mechanism to control the red LED dice, the green LED dice, and the blue LED dice. By the specific arrangement of these elements, the package structure gets a white light or full color light with high resolution, impacted structure, uniform mixing effect and achieves cost down and lowers space usage.

Description

201014447 VI. Description of the Invention: [Technical Field] The present invention is a full-color LED chipping structure, which can be used for display of various LEDs and special wires. This full color is more specifically an internal inclusion. A package structure of a full-color LED with a driving mechanism. [Prior Art]

In the human life, the light source has occupied a pivotal position for a long time. With the continuous advancement of technology, it has developed in the 1970s (Light Emitting Diode (LED)). The source has small size, long life, not easy to break, low. The pollution of power wires, non-thermal radiation and toxic substances (such as: 7jC silver, etc.) is now widely used in daily life. In recent years, under the policy of governments to promote environmental protection and energy conservation, the LEDs of LEDs can be roughly divided into functions and lighting. In the direction of technology, the traditional monochromatic light-emitting diodes (10) The work has gradually failed to meet the needs of human vision. So we have developed two-color LED (LED), full-color LED (LED) and other related products, please refer to the "District", for the full color of the light Schematic diagram of the package structure of the polar body. - The well-known full-color LEDs can achieve a variety of colors, so the mother's full-color LED10 package structure, at least contains red light to print the wafer 1 green light (G) LED: 曰曰 12 and blue (9) LED The wafer 13 mixes the ever-changing light color with the three secret filaments of red light (f), green f* (G) and blue fineness 'But the ratio of RGB three primary colors required by various light colors is not the same. The color LEDs need to be connected with a limited current group and a driving board to effectively control the mixing ratio of the three primary colors of RGB. At present, a conventional method is to provide a full-color LED 10, a P-flow current group 2G (a to e), and a drive unit 21 on a printed circuit board (pCB). Please refer to "2 3 201014447" for details. Schematic diagram of the implementation structure of the color light-emitting diode. Finally, as long as a plurality of circuit boards are electrically connected to each other, the working power supply and the control sfl number transmitted by the central control are used to activate the full-color LED, and a complete LED display can be formed through the light and shadow conversion of most full-color LEDs. ^. - [Summary of the Invention] Although the LED display screen technology formed by the conventional full-color light-emitting diode has been smashed, it is necessary to add a current limiting group and a driving unit to the circuit board, which may cause adjacent to each other. The spacing between the full-color LEDs is too large, and the LED display mirrors are well displayed to show detailed images. At the same time, the flexible circuit boards are also prone to poor solder joints between the components due to the recesses, resulting in malfunction of the circuit and Failure, and the driving component is also exposed to frequency interference (electromagnetic interference (EMI), which affects the operation of the overall LED display screen. In view of this, the present invention discloses a package structure of a full gLED with a driving mechanism. The purpose is to effectively improve the problem that the spacing between adjacent full-color LEDs is too large in the conventional LED display screen; the full-color LED includes an integrated circuit chip, a red (R) LED, and a green light (g). LED and a blue (B) LED light-emitting diode chip (LED dice) is combined with a current-limiting group, and a driver mechanism is further arranged in the pixel circuit chip to complete the LED crystal of the RGB three primary colors. At the same time, by the arrangement of internal components, a full-color LED with high compactness, good light mixing effect and high resolution can be formed, and the use space can be effectively reduced to reduce the production cost. On the other hand, the integrated circuit chip Packaged into full-color led, it can further reduce the frequency interference (RFI) and electromagnetic interference (EMI), and the flexible circuit board can be omitted because of the simplification of the component. Such as the problem of failure; after reducing the spacing between the full-color LEDs, the overall power loss of the LED display can be reduced, and the effect of easy control and energy saving can be achieved. The details and techniques of the present invention are described below with reference to the drawings. 201014447 [Embodiment] According to the package structure of a full-color LED with a driving mechanism disclosed in the present invention, please refer to FIG. 3A, which is a first implementation of a package structure of a full-color LED with a driving mechanism according to the present invention. Example: φ φ full-color LED package structure with drive mechanism, where full-color LED includes. Power input terminal Vcc, power output 〇n (j The clock data input terminal CLKI, the clock data output terminal CLKO, the serial data input terminal and the serial data output terminal SDO have a total of 6 pins, and the sealing mechanism disposed inside the frame 1〇〇 contains the product. The body circuit chip 30, the three current limiting groups 2〇(a~c), the red LED crystal 11, the light (g;) the LED chip I2 and the blue (9) LED chip 13, the red, blue and green light colors The LED die is respectively provided with a first electric and a second electrode and is fixed on the carrying portion 1〇1. # The power input terminal Vcc extends into the full-color LED10 package structure to form a rectangular extension 1G2' and There are three current limiting groups 20 (a~c) adhered to the extension portion 1G2, and the current limiting group is a double-sided conductive chip resistor, so when the current limiting 20 (a~c) bottom portion is extended to the extension portion After 102, it is directly connected to the power input terminal ' 'secret current group 2G (a ~ e) qingshun metal wire bonding (wire bonding) in blue (B) 13, red (R) 11 and green On the first electrode of light 12. ^ The red electrode (G) U, the green light (G) i2, and the blue light out of the second electrode of the LED chip B are wire bonded to the control point of the integrated circuit chip 3, and the integrated circuit chip 30 The setting is adhered to the carrying portion 1〇1, and the power input terminal Vcc, the power output terminal Gnd, the clock data input terminal clki, the clock number, the m clko, the serial data input terminal SDI and the serial data output terminal SDO /, 6 wire bonding (wire b〇nding), and finally filled into the light-transmitting material of the light-mixing material 103 to complete the package, the corresponding position can refer to "3B" is the full color LED with chicken Although the structure is the same as the side view of the embodiment. 201014447 τTM Fig. 4 shows the full-color road map with the driving mechanism of the present invention. The first working power supply is input from the power input terminal Vcc to the rear body circuit chip 3G, and simultaneously passes through three current limiting groups 2 (a ~c) Fluorescent, green (G) 12 and blue (9) (4) wafers 13 required for the working electricity, electromechanical group 2 (a ~ C) for precise control distribution to the LED wafer

It only takes effect to ensure the color of light generated when each LED chip is mixed with light. 'At the same time, the function of the LED chip is protected.' The clock data input terminal CLKI and the serial data input terminal SDI transmit the control signal to the integrated circuit chip 3 The driving mechanism in the integrated circuit chip 30 produces various voltage drops for the red (G)n, green (G)i2, and blue (9) LED chips 13 to be mixed into different light colors. The power output GND is transmitted, and the control signal is transmitted to the next full color through the clock output terminal CLKO and the serial data output terminal SD. In violation of the same invention, the present invention has another implementation state. Referring to FIG. 5A, FIG. 5 is a schematic view showing a second embodiment of a package structure of a full-color LED having a driving mechanism according to the present invention.

The package structure of the full-color LED with the driving mechanism of the embodiment, wherein the full-color LED also includes the f source input terminal vcc, the power output terminal GND, the pulse data input terminal CLKI, and the n-pulse data output terminal CLK〇. The serial data input terminal SDI and the serial data output terminal SD 〇 have a total of 6 pins, and the power input terminal Vcc extends to the inside of the frame 1 形成 to form a rectangular planar extension portion 102 on the carrying portion 1〇1. The integrated circuit chip 3 is directly pasted on the extension portion 102, and is connected to the power input terminal Vcc, the power output terminal Gnd, the clock data input terminal CLKI, the clock data output terminal CLKO, and the serial number wheel 踹 SDT. And the serial data theory SDG total 6 _ tender ^ b ^; ^ SDI red (G) LED wafer 11, green (G) LED wafer 12 and blue (B) LED wafer 13, respectively, is provided with a first electrode And the second electrode. In this embodiment, the two primary color LED chips are fixed on the control point of the integrated circuit wafer 30 by eutectic or adhesive bonding, and the second electrode is electrically connected to the control point. 6 201014447 ❹

The three current limiting groups 20 (a to c) are selected to be most suitable for bonding to the extension portion 102. The current limiting group is the double-sided conductive chip resistor, so when the current-limiting group 20 (a~) c) After the bottom is adhered to the extension 1〇2, it is electrically connected directly to the power input terminal Vcc' and the top of the current limiting group 2〇(a~c) is wired by wire bonding. The first electrodes of the blue (8) 13, red (8) 11 and green (G) LED chips 12 connected to the integrated circuit chip 3 are filled with the light-transmitting glue of the light-transmitting material after all the electrical connections are completed. 〇3 Completing the package 'Complete stacking state can be referred to as FIG. 5B. FIG. 5 is a side cross-sectional view showing a second embodiment of a package structure of a full-color LED having a driving mechanism according to the present invention. The first embodiment further reduces the number of wire bonding, while the three primary color wafers are simultaneously assembled and fixed on the integrated circuit wafers to make the light mixing distance denser and the light color complete. In addition to the foregoing embodiments, the present invention has another embodiment. Please refer to FIG. 6A, which is a schematic diagram of a third embodiment of a full-color LED package structure having a driving mechanism according to the present invention.

In the package structure of this embodiment, the full-color LED also includes: a power input terminal Vcc, a power output terminal Gnd, a clock data input terminal CLKI output terminal CLKO, a serial data input terminal SDI, and a serial data output terminal. 6 pin 'power input terminal Vcc still extends to the inner portion of the frame 1 开 open surface 1G2 on the carrying portion 1G1, the integrated circuit wafer > 1 directly adhered to the extension 1 〇 2 'And with the power input terminal Vee, the electrical clock data input terminal CLKI, the clock data output terminal (10): SDG 6-pin wire connection (G) (4) wafer 11, green (G) LED chip 12 and blue light (9) Z rii3" is respectively set to have a first electrode and a second electrode, in order to

= On the top is attached - Insulation layer 32 'This insulation layer is selected; Glass, ceramic to heat insulation material to block the thermal energy generated by the LED wafer U 7 201014447 The thermal layer 31 is attached to the thermal insulation layer 32, and In addition to the load-bearing part 1〇1 (or internal=connected, 'in order to achieve high heat penetration when the wafer LED is operated, the heat-conducting layer 31 must be made of a good heat dissipation coefficient ^metal gold, red light (G) LED Chip u, green light and blue light (9) LED chip B position of the ride = the first connection is connected to the extension unit 102 and the wire is joined (3)

The three current-limiting groups 20 (a to c) are attached to the integrated circuit of the integrated circuit chip 3, and the two-layer conductive chip resistors are the same, so when the current-limiting group f (a~0) depends on After the control terminal of the integrated circuit chip 30, the direct connection is made to form an electrical connection 'The secret flow 2Q (a ~ _ part take the wire wire connection & ~ fat bonding), and the integrated circuit chip 3 〇 The blue 13 red light _ and the second electrode of the green LED chip 12 are connected, but the V potential t can be light-transmissive material mixed glue 1G3 to complete the package, the stack * method can be referred to ^, 6B map", A side cross-sectional view of a third embodiment of a package structure of a full-color LED having a driving mechanism, it is apparent from the figure that the third embodiment is identical to the first embodiment: although the shunt resistors 2〇(a~C) and blue light (B) 13. The connection relationship of the red (R) 11 and the 'affinity p' LED chips 12 is interchanged, but the function is not affected, and f has the advantages of the second embodiment. The resistors 20 (a to c) are disposed on the integrated circuit chip 3A to have a further dimension. The blue_13, red (8)11, and '#Tb(G) LED chips 12 are connected to each other. Nearly, more results can be produced. Please refer to "7th ®" after the invention. The invention has a schematic diagram of an embodiment in which the driving lion full color LED is not displayed. After the full-color LED 10 disclosed in the present invention is connected in series, a large-scale 幕 t screen can be formed, which enables each full-color LED 1 更 to be connected in a cascade control manner, and can be output from a large control terminal. The towel includes clock data (CLK) for simultaneously operating the full-length LEDs 10, and controls red (G), green 8 201014447

The serial data (SD) of the light (G) and blue (9) LED chips, the full-color LED10 receives the control signal from the clock data input terminal CLKI and the serial data input terminal SDI, and then uses Pulse Width Modulation (PWM). The method performs light color mixing control on the red (G), green (G) and blue (B) LED chips, and transmits the control signal through the clock data input terminal CLKO and the serial data input terminal SDO to the next level. Color LED10; Through the above-mentioned manner, the designer can connect a large number of full-color LEDs to form a large-scale display screen. Since the full-color LED of the present invention has a built-in circuit chip with a driving mechanism and a current limiting resistor, it can be effectively The reduction of the spacing between the full-color LEDs allows the large display to present a more detailed image. While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the present invention, and it is to be understood that those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a package structure of a conventional full-color light-emitting diode; FIG. 2 is a schematic structural view of a conventional full-color light-emitting diode; FIG. 3A is a full-color LED having a driving mechanism according to the present invention; Schematic diagram of the first embodiment of the seal; FIG. 3B is a side cross-sectional view of the first embodiment of the full-color LED having the driving mechanism of the present invention; <orphan. 4 is an equivalent circuit of a full-color LED with a driving mechanism according to the present invention. The second invention has a driving mechanism of a full-color LED package structure. FIG. 5B is a package structure of a full-color LED with a driving mechanism of the present invention 201014447 second 6A is a side view of a full-color second embodiment having a driving mechanism according to the present invention; and FIG. 6B is a side cross-sectional view of a full-color second embodiment having a driving mechanism according to the present invention; and LED package structure LED The package structure ^ 7 is the implementation of the full color LED display screen with the driving mechanism of the invention

^Main component symbol description]

11 12 13 2〇(a~c) 21 30 31 32 40 1〇0 1〇1 102 1〇3 CUCI St)I SD〇V〇c Gnd Full Color LED Red Light (G) LED Chip Green Light (G) LED chip blue light (B) LED chip current limiting resistor drive unit integrated circuit chip heat conduction layer insulation layer flexible printed circuit board frame carrier extension part mixed light glue clock data input terminal clock data output serial data input eight ^ Serial data output power input power output

Claims (1)

201014447 VII. Patent application scope ·· 1. The package structure of the full-color LED with the material axis mechanism. The full-color LED at least contains: a power input terminal, a power output terminal, a clock data input terminal, and a clock data output. a serial data input end and a serial data output end, wherein the power input end further has an extension portion; a load bearing portion having an accommodation space for accommodating a red light (G), a green a light (G) and a blue (B) LED chip, and the red, blue, and green light color LED dies are respectively provided with a first electrode and a second electrode; and the first current limiting power group is The first current limiting resistor is adhered to the extension portion and electrically connected, and is connected to the first electrode of the LED chip by a metal wire; and a second current limiting resistor, the second limit a current resistance is adhered to the extension portion and electrically connected, and the metal line is connected to the first electrode of the red (R) LED chip; and / a second current limiting resistor, the third current limiting resistor Adhering to the extension and forming an electrical connection, and the metal wire a first electrode of the light (G) LED chip is connected; and an integrated circuit chip, the integrated circuit wafer is adhered to the reference of the bearing portion, and the metal line and the red light (G), green light ( G) and a second electrode of the blue (B) LED chip, the integrated circuit chip receives a working power supply from the power input terminal and receives a control signal from the clock data input terminal and the serial data input terminal Controlling the red (〇), green, and blue (B) LED chips, and transmitting the working power through the power output, and transmitting the control signal to the clock data output terminal and the serial The data output is transmitted. 2. The full-color LED package structure with the driving mechanism as described in the first paragraph of the patent application is connected in a first-level control manner. 3. The package structure of a full-color LED with a driving mechanism as described in claim 1 of the patent scope. The full-color LED controls the red (G), green (9) and blue (8) LEDs in a pulse width modulation (PWM) manner. Wafer. 201014447 4. - Package structure with drive __ full color LED The ε contains: a power input, and the power input extends to the full color led 2? a stretching portion, a power output terminal, a clock data input terminal, a clock output terminal, a row data input terminal, and a serial data output terminal; - an integrated circuit chip 'the integrated circuit chip is pasted on the extension Above the part, and a red (g), a light (G) and a blue (8) LED chip are adhered on the integrated circuit chip, and the red, blue and green light colors are respectively arranged on the LED die. a first electrode and a second electrode, wherein the circuit chip is electrically connected to the red light (G), the green light, and the blue light, and the integrated circuit chip is received by the power input terminal. The island returns the number of feeds to the receiving line and receives the second control test ' _ red light (6), track (G) recording) LED ^ raw control, and then the working power is transmitted through the power output And transmitting the control signal through the clock data output end and the serial data output end; the first current limiting power group, the first current limiting resistor is adhered to the extension portion to form an electrical connection, m The strobe line is connected to the first electrode of the blue thin LED chip; Φ the second current limiting resistor 'the second current limiting _ affixed to J is electrically connected to the extension portion, and is connected to the red (R) LED crystal electrode by the metal line; and the 5=3 current limiting resistor, the third current limiting resistor is adhered to the extension portion The upper electrode is electrically connected and connected to the green light (G) LED chip by the metal. The full-color £ED 具有' with the driving mechanism described in item 4 of the patent scope is connected by cascading control. Ίί Patent No. 4, the full-color LED with the driving mechanism, the second H', the full-color LED is further modified by a pulse width modulation (pWM) method, work light (G), green light (G) and Blue (8) LED chip. 7. The package structure of full-color LED with driving mechanism, the full-color coffee to 12 201014447 contains less: Qing 3 21 and ^ electric two lose, more, reach to the full-color LED clock pulse tf source Output end, - clock data input end, one-by-one two-end, one serial data input end and one serial data output end; part of n-product = circuit chip 'the integrated circuit wafer is folded and fixed Extending on the integrated circuit chip, there is further provided: an insulating layer, the insulating layer is more adhered to the integrated circuit chip. JlL, a heat conductive layer, the heat conductive layer is more adhered to the heat insulating layer; a red light (G), a green light ((7) and a blue LED chip, the ., '= "(Gj, green light (G) and The blue (B) LED chip is adhered to the LED chip of the three heat colors of the red, blue and green light, respectively, and a first electrode and a second electrode are respectively disposed, and the red light (G) and the green light are respectively disposed. The first electrode of the (G) and blue (B) LED chips is electrically connected to the power input end by a metal wire, and the integrated circuit chip receives a working power from the power input terminal, and is input by the clock data. After receiving the control signal, the terminal and the serial data input terminal control the red, green (G) and blue (B) LED chips, and then transmit the working power through the power output, and a control signal is transmitted through the clock data output end and the serial data output end; 曰 a first current limiting power group, the first current limiting resistor is adhered to the integrated circuit chip and electrically connected, and a metal line is connected to the second electrode of the LED chip; a second current limiting resistor, the second current limiting resistor Attached to the integrated circuit chip and electrically connected, and connected to the second electrode of the red (r) led chip by the metal line, and a third current limiting resistor, the third current limiting resistor Adhering to the integrated circuit chip and forming an electrical connection, and connecting the metal wire to the second electrode of the green (G) LED chip. 8. The driving mechanism is as described in claim 7 The full-color LED seal 13 201014447 is equipped with a structure, and the full-color LEDs are connected in a first-level control manner. 9. The full-color LED seal with a driving mechanism as described in claim 7 of the patent application, the structure of the full color The LED is also controlled by a pulse width modulation (PWM) method to measure the red (G), green (G) and blue (b) LED chips.