[go: up one dir, main page]

CN100482028C - Light emitting module and keyboard using same - Google Patents

Light emitting module and keyboard using same Download PDF

Info

Publication number
CN100482028C
CN100482028C CNB031471749A CN03147174A CN100482028C CN 100482028 C CN100482028 C CN 100482028C CN B031471749 A CNB031471749 A CN B031471749A CN 03147174 A CN03147174 A CN 03147174A CN 100482028 C CN100482028 C CN 100482028C
Authority
CN
China
Prior art keywords
light
power supply
emitting
end points
lead
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNB031471749A
Other languages
Chinese (zh)
Other versions
CN1568120A (en
Inventor
林志南
许鸿章
许建士
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Darfon Electronics Corp
Original Assignee
Darfon Electronics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Darfon Electronics Corp filed Critical Darfon Electronics Corp
Priority to CNB031471749A priority Critical patent/CN100482028C/en
Publication of CN1568120A publication Critical patent/CN1568120A/en
Application granted granted Critical
Publication of CN100482028C publication Critical patent/CN100482028C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Illuminated Signs And Luminous Advertising (AREA)
  • Led Device Packages (AREA)

Abstract

一种发光模块，包括：一第一及第二电源导线，分别连接到一第一及第二电源节点；多个发光装置，每一发光装置的一第一端点和一第二端点分别连接到第一和第二电源导线；其中，设置在任两相邻第一端点间的第一电源导线均具有相等的长度，设置在任两相邻第二端点间的第二电源导线均具有相等的长度；并且由第一电源节点开始，经过单一任何发光装置而到达第二电源节点，所经过的第一和第二电源导线的总长度相等。另外，公开运用所述发光模块的键盘。

Figure 03147174

A light emitting module includes: a first and a second power supply wire, connected to a first and a second power supply node respectively; a plurality of light emitting devices, a first terminal and a second terminal of each light emitting device are connected to the first and second power supply wires respectively; wherein the first power supply wires arranged between any two adjacent first terminals have equal lengths, and the second power supply wires arranged between any two adjacent second terminals have equal lengths; and starting from the first power supply node, passing through any single light emitting device and reaching the second power supply node, the total length of the first and second power supply wires passed through is equal. In addition, a keyboard using the light emitting module is disclosed.

Figure 03147174

Description

发光模块及运用发光模块的键盘 Light emitting module and keyboard using light emitting module

技术领域 technical field

本发明有关于一种发光模块，特别是有关于一种能够使发光模块内的发光元件均匀发光的发光模块；其中，并公开运用所述发光模块的键盘。The present invention relates to a light-emitting module, in particular to a light-emitting module capable of uniformly emitting light from light-emitting elements in the light-emitting module; wherein, a keyboard using the light-emitting module is disclosed.

背景技术 Background technique

随着计算机的普及，计算机有可能在各种环境下使用，例如在光线不足的场合中；为了满足所述需求，提出可自行发光的键盘。With the popularization of computers, computers may be used in various environments, such as places with insufficient light; in order to meet the above requirements, a keyboard that can emit light by itself is proposed.

常规技术是在键盘之下，设置多个发光二极管，借助发光二极管所发出来的亮度，使得键盘发光；图1表示常规电路。如图所示，每个电流路径上的总阻抗均不相同，以经过发光二极管LED1的电流路径I1为例，由提供电源VCC到参考地端Gnd之间，经过电阻R1、R11、R21；而流经发光二极管LED6的电流路径I2经过电阻R1-R6、R16、R26-R21；由于每个流经单一发光二极管的电流路径上的阻抗值均不相同，故流过每个发光二极管的电流大小亦不相同，使得每一发光二极管的亮度不一，故造成键盘发光不均匀的现象。The conventional technology is to arrange a plurality of light-emitting diodes under the keyboard, and make the keyboard emit light by means of the brightness emitted by the light-emitting diodes; FIG. 1 shows a conventional circuit. As shown in the figure, the total impedance of each current path is different. Take the current path I 1 passing through the light-emitting diode LED 1 as an example, between the power supply V CC and the reference ground Gnd, through the resistors R 1 , R 11 , R 21 ; and the current path I 2 flowing through the light emitting diode LED 6 passes through the resistors R 1 -R 6 , R 16 , R 26 -R 21 ; since the impedance value of each current path flowing through a single light emitting diode is the same Different, so the current flowing through each LED is also different, so that the brightness of each LED is different, so the phenomenon of uneven light emission of the keyboard is caused.

发明内容 Contents of the invention

有鉴于此，本发明的目的为提供一种发光模块，借助控制发光模块内部的阻抗，使发光模块内的发光元件能够均匀发光。In view of this, the object of the present invention is to provide a light-emitting module, by controlling the impedance inside the light-emitting module, the light-emitting elements in the light-emitting module can emit light uniformly.

本发明的另一目的为提供一种发光键盘，可改善其发光效果，使得键盘均匀发光。Another object of the present invention is to provide a luminous keyboard, which can improve its luminous effect and make the keyboard evenly luminous.

为达到上述目的，本发明提供一种发光模块，包括：一第一电源导线，连接到一第一电源节点；一第二电源导线，连接到一第二电源节点；多个发光装置，每一发光装置的一第一端点和一第二端点分别连接到第一和第二电源导线；其中，每一发光装置包括：一第三电源导线，连接到第一端点；一第四电源导线，连接到第二端点；多个发光元件，每一发光元件的一第一端和一第二端分别连接到第三和第四电源导线；其中，设置在任两相邻第一端点间的第一电源导线均具有相等的长度，设置在任两相邻第二端点间的第二电源导线均具有相等的长度；并且由第一电源节点开始，经过单一任何发光装置而到达第二电源节点，所经过的第一和第二电源导线的总长度相等；由第一端点开始，经过单一任何发光元件而到达第二端点，所经过的第三和第四电源导线的总长度相等。To achieve the above object, the present invention provides a light emitting module, comprising: a first power supply wire connected to a first power supply node; a second power supply wire connected to a second power supply node; a plurality of light emitting devices, each A first end point and a second end point of the light emitting device are respectively connected to the first and second power supply wires; wherein each light emitting device includes: a third power supply wire connected to the first end point; a fourth power supply wire , connected to the second terminal; a plurality of light-emitting elements, a first end and a second end of each light-emitting element are respectively connected to the third and fourth power supply wires; wherein, the The first power supply wires all have the same length, and the second power supply wires arranged between any two adjacent second terminals all have the same length; and starting from the first power supply node, passing through any single light-emitting device to reach the second power supply node, The total lengths of the passed first and second power supply wires are equal; the total lengths of the passed third and fourth power supply wires are equal to each other starting from the first end point and passing through any single light-emitting element to reach the second end point.

为达到上述另一目的，本发明还提供一种发光键盘，包括：一键盘部件，具有一底板以及至少一按键，其中按键以可相对底板上下运动的方式设置在底板上，底板具有一第一及第二电源导线，分别连接到一第一电源节点及一第二电源节点；以及，多个发光装置，每一发光装置的第一端点连接第一电源导线，其第二端点连接第二电源导线。其中，每一发光装置包括：一第三电源导线，连接到第一端点；一第四电源导线，连接到第二端点；多个发光元件，每一发光元件的一第一端和一第二端分别连接到第三和第四电源导线。In order to achieve the above-mentioned another object, the present invention also provides a luminous keyboard, comprising: a keyboard component having a bottom plate and at least one key, wherein the key is arranged on the bottom plate in a manner that can move up and down relative to the bottom plate, and the bottom plate has a first and a second power supply wire, respectively connected to a first power supply node and a second power supply node; power lead. Wherein, each light-emitting device includes: a third power supply wire connected to the first terminal; a fourth power supply wire connected to the second terminal; a plurality of light-emitting elements, a first end of each light-emitting element and a first end The two terminals are respectively connected to the third and fourth power supply wires.

其中，设置在任两相邻第一端点间的第一电源导线均具有相等的长度，设置在任两相邻第二端点间的第二电源导线均具有相等的长度；并且由第一电源节点开始，经过单一任何发光装置而到达第二电源节点，所经过的第一和第二电源导线的总长度相等；由第一端点开始，经过单一任何发光元件而到达第二端点，所经过的第三和第四电源导线的总长度相等。Wherein, the first power supply wires arranged between any two adjacent first terminals have the same length, and the second power supply wires arranged between any two adjacent second terminals have the same length; and starting from the first power supply node , passing through any single light-emitting device to reach the second power supply node, the total lengths of the first and second power supply wires passed through are equal; starting from the first end point, passing through any single light-emitting element to reach the second end point, passing through the first end point The total lengths of the third and fourth power leads are equal.

为使本发明的上述和其他目的、特征、和优点能更明显易懂，以下举出优选实施例，并配合附图，详细说明如下。In order to make the above and other objects, features, and advantages of the present invention more comprehensible, preferred embodiments are listed below and described in detail in conjunction with the accompanying drawings.

附图说明 Description of drawings

图1表示常规电路。Figure 1 shows a conventional circuit.

图2表示本发明的发光模块示意图。Fig. 2 shows a schematic diagram of the light emitting module of the present invention.

图3表示本发明发光模块的等效电路图。Fig. 3 shows an equivalent circuit diagram of the light emitting module of the present invention.

图4表示发光装置的内部示意图。Fig. 4 shows a schematic view of the interior of the light emitting device.

图5表示发光装置的内部示意图。Fig. 5 shows a schematic view of the interior of the light emitting device.

图6表示3*3发光键盘的示意图。Fig. 6 shows a schematic diagram of a 3*3 luminous keyboard.

符号说明Symbol Description

10：底板；12：第一电源导线；14：第二电源导线；10: base plate; 12: first power wire; 14: second power wire;

16：发光模块；100：发光元件；16: light emitting module; 100: light emitting element;

Node1：第一电源节点；Node2：第二电源节点；Node1: first power node; Node2: second power node;

R1-1-R1-m、R2-1-R2-m、R3-1-R3-m、R4-1-R4-m、R 1-1 -R 1-m , R 2-1 -R 2-m , R 3-1 -R 3-m , R 4-1 -R 4-m ,

RD1-1-RD1-m、RD2-1-RD2-m、R D1-1 -R D1-m , R D2-1 -R D2-m ,

RD3-1-RD3-m、RD4-1-RD4-m：电阻；R D3-1 -R D3-m , R D4-1 -R D4-m : resistance;

D1-Dm：发光装置；D 1 -D m : light emitting device;

LED1-LED6：发光二极管。LED 1 -LED 6 : Light-emitting diodes.

具体实施方式 Detailed ways

图2表示本发明的发光模块示意图。如图所示，第一电源导线A连接到一第一电源节点Node1；第二电源导线B连接到一第二电源节点Node2；多个发光装置D1-Dm，每一发光装置D1-Dm的一第一端点T1和一第二端点T2分别连接到第一电源导线A和第二电源导线B。Fig. 2 shows a schematic diagram of the light emitting module of the present invention. As shown in the figure, the first power supply wire A is connected to a first power supply node Node1; the second power supply wire B is connected to a second power supply node Node2; a plurality of light emitting devices D 1 -D m , each light emitting device D 1 - A first terminal T1 and a second terminal T2 of D m are connected to the first power supply wire A and the second power supply wire B, respectively.

其中，设置在任两相邻发光装置D1-Dm第一端点间的第一电源导线均具有相等的长度L1-1＝L1-2＝...＝L1-m，LD1-1＝LD1-2＝...＝LD1-m，设置在任两相邻发光装置D1-Dm第二端点间的第二电源导线均具有相等的长度LD2-1＝LD2-2＝...＝LD2-m，L2-1＝L2-2＝...＝L2-m；并且由第一电源节点Node1开始，经过单一任何发光装置而到达第二电源节点Node2，所经过的第一电源导线A和第二电源导线B的总长度相等，故L1-1＝L1-2＝...＝L1-m＝L2-1＝L2-2＝...＝L2-m。Wherein, the first power wires arranged between the first terminals of any two adjacent light-emitting devices D 1 -D m all have the same length L 1-1 =L 1-2 =...=L 1-m , L D1 -1 =L D1-2 =...=L D1-m , the second power wires arranged between the second terminals of any two adjacent light emitting devices D 1 -D m all have the same length L D2-1 =L D2 -2 =...=L D2-m , L 2-1 =L 2-2 =...=L 2-m ; and starting from the first power supply node Node1, passing through any single light-emitting device to reach the second power supply Node Node2, the total lengths of the first power supply wire A and the second power supply wire B passed through are equal, so L 1-1 =L 1-2 =...=L 1-m =L 2-1 =L 2- 2 =...=L 2-m .

图3表示本发明发光模块的等效电路图。如图所示，电阻R1-1-R1-m、RD1-1-RD1-m、RD2-1-RD2-m、R2-1-R2-m代表发光模块的电路布局走线(track)等效电阻，所述电阻的阻值由走线的长度而决定，当走线越长时，则其等效阻抗越大，故当电阻R1-1＝...＝R1-m＝R2-1＝...＝R2-m、RD1-1＝...＝RD1-m，RD2-1＝...＝RD2-m时，则由第一电源节点Node1至第二电源节点Node2的所经过的走线长度相等。Fig. 3 shows an equivalent circuit diagram of the light emitting module of the present invention. As shown in the figure, resistors R 1-1 -R 1-m , R D1-1 -R D1-m , R D2-1 -R D2-m , R 2-1 -R 2-m represent the circuit of the light emitting module Layout the equivalent resistance of the track. The resistance of the resistance is determined by the length of the track. When the track is longer, the equivalent impedance is larger. Therefore, when the resistance R 1-1 =... =R 1-m =R 2-1 =...=R 2-m , R D1-1 =...=R D1-m , R D2-1 =...=R D2-m , then The traces from the first power supply node Node1 to the second power supply node Node2 have the same length.

举例而言，假设电阻R1-1＝...＝R1-m＝R2-1＝...＝R2-m＝2R；RD1-1＝...＝RD1-m＝R；RD2-1＝...＝RD2-m＝R时，则由第一电源节点Node1流经发光装置D1至第二电源节点Node2的电流路径I3会通过电阻R1-1、RD1-1、RD2-1、R2-1-R2-m，其总阻抗值为2R+R+R+2R*m，其中，m为电阻R2-1-R2-m的总数量；另外，由第一电源节点Node1流经发光装置Dm至第二电源节点Node2的电流路径I4会通过电阻R1-1-R1-m、RD1-m、RD2-m、R2-m，其总阻抗值为2R*m+R+R+2R；其它依此类推。For example, assume that resistance R 1-1 =...=R 1-m =R 2-1 =...=R 2-m =2R; R D1-1 =...=R D1-m = When R ; R D2-1 = . , R D1-1 , R D2-1 , R 2-1 -R 2-m , the total impedance value is 2R+R+R+2R*m, where m is the resistance R 2-1 -R 2-m In addition, the current path I 4 flowing from the first power node Node1 through the light emitting device D m to the second power node Node2 will pass through the resistors R 1-1 -R 1-m , R D1-m , R D2- m , R 2-m , the total impedance value is 2R*m+R+R+2R; and so on.

故本发明的所有流经单一发光装置的电流路径的总阻抗值均相同，使得流过每一发光装置的电流大小也相同，如此，便可得到发光亮度均相同的发光装置。Therefore, the total impedance value of all the current paths flowing through a single light emitting device in the present invention is the same, so that the magnitude of the current flowing through each light emitting device is also the same. In this way, light emitting devices with the same luminous brightness can be obtained.

图4表示发光装置的内部示意图。由于每一发光装置的内部示意图均相同，故在此，仅以发光装置D1作为代表。如图所示，发光装置D1包括：一第三电源导线C，连接到第一端点T1；一第四电源导线D，连接到第二端点T2；多个发光元件，在此以发光二极管LED1-LEDm为例，每一发光二极管的阴极端和阳极端分别连接到第三电源导线C和第四电源导线D。Fig. 4 shows a schematic view of the interior of the light emitting device. Since the internal diagrams of each light-emitting device are the same, only the light-emitting device D1 is used here as a representative. As shown in the figure, the light emitting device D 1 includes: a third power supply wire C connected to the first terminal T 1 ; a fourth power supply wire D connected to the second terminal T 2 ; a plurality of light emitting elements, here Taking the light emitting diodes LED 1 -LED m as an example, the cathode terminal and the anode terminal of each light emitting diode are respectively connected to the third power supply wire C and the fourth power supply wire D.

其中，连接任两相邻第一端T1的第一电源导线A均具有相等的长度，连接任两相邻第二端T2的第二电源导线B均具有相等的长度；并且由第一端点T1开始，经过单一任何发光二极管而到达第二端点T2，所经过的第三电源导线C和第四电源导线D的总长度相等。Wherein, the first power wires A connected to any two adjacent first terminals T1 all have the same length, and the second power wires B connected to any two adjacent second ends T2 all have the same length; and the first Starting from the terminal T 1 , passing through any single LED to reach the second terminal T 2 , the total lengths of the third power supply wire C and the fourth power supply wire D passed through are equal.

图5表示发光装置的内部示意图。如图所示，电阻R3-1-R3-m、RD3-1-RD3-m、RD4-1-RD4-m、R4-1-R4-m代表发光装置的电路布局走线(track)等效电阻，所述电阻的阻值由走线的长度而决定，当走线越长时，则其等效阻抗越大，故当电阻R3-1＝...＝R3-m＝R4-1＝...＝R4-m、RD3-1＝...＝RD3-m，RD4-1＝...＝RD4-m时，则由第一电端T1至第二端T2的所经过的走线长度相等。另外，经过单一发光二极管的电流路径上的总阻抗值，与上述经过单一发光装置的电流路径上的总阻抗值算法相同，故不再赘述Fig. 5 shows a schematic view of the interior of the light emitting device. As shown in the figure, resistors R 3-1 -R 3-m , R D3-1 -R D3-m , R D4-1 -R D4-m , R 4-1 -R 4-m represent the circuit of the light emitting device Layout the equivalent resistance of the track. The resistance of the resistance is determined by the length of the track. When the track is longer, the equivalent impedance is larger. Therefore, when the resistance R 3-1 =... =R 3-m =R 4-1 =...=R 4-m , R D3-1 =...=R D3-m , R D4-1 =...=R D4-m , then The traces from the first electrical terminal T1 to the second terminal T2 have the same length. In addition, the total impedance value on the current path passing through a single light-emitting diode is the same as the algorithm for the total impedance value on the current path passing through a single light-emitting device, so it will not be repeated here.

一般键盘具有一底板以及至少一按键，其中按键以可相对底板以上下运动的方式设置在底板上；而能使键盘发光的发光元件亦设置在底板之上。图6表示3*3发光键盘的示意图。本发明的发光模块可具有多个发光二极管，但由于本图是说明3*3的发光键盘，故针对3个发光模块，每一发光模块具有3个发光二极管加以说明；如图所示，底板10具有一第一电源导线12和第二电源导线14；在本实施例中，每一发光装置16、18及20连接到第一电源导线12及第二电源导线14之间。每一发光装置之间的第一电源导线12及第二电源导线14长度相同。A general keyboard has a bottom plate and at least one key, wherein the key is arranged on the bottom plate in a manner that can move up and down relative to the bottom plate; Fig. 6 shows a schematic diagram of a 3*3 luminous keyboard. The light-emitting module of the present invention can have multiple light-emitting diodes, but since this figure is to illustrate a 3*3 light-emitting keyboard, it will be described for three light-emitting modules, each light-emitting module has three light-emitting diodes; as shown in the figure, the bottom plate 10 has a first power lead 12 and a second power lead 14 ; in this embodiment, each light emitting device 16 , 18 and 20 is connected between the first power lead 12 and the second power lead 14 . The lengths of the first power wire 12 and the second power wire 14 between each light emitting device are the same.

其中，每一发光模块具有3个发光二极管，每一发光二极管100一对一设置在一按键(未图示)与底板10之间，故发光二极管100的数量与按键数量相同，将发光二极管100的阴极端连接第一电源导线12，阳极端连接第二电源导线14；每一发光二极管100的阴极端连接到第一电源导线12的长度相等，每一发光二极管100的阳极端连接到第二电源导线14的长度亦相等；另外，第一电源导线12接电源Vcc，第二电源导线14接地端Gnd。Wherein, each light-emitting module has 3 light-emitting diodes, and each light-emitting diode 100 is arranged one-to-one between a key (not shown) and the base plate 10, so the number of light-emitting diodes 100 is the same as the number of keys, and the light-emitting diodes 100 The cathode end of each light emitting diode 100 is connected to the first power supply wire 12, and the anode end is connected to the second power supply wire 14; the cathode end of each light emitting diode 100 is connected to the first power supply wire 12 with equal length, and the anode end of each light emitting diode 100 is connected to the second power supply wire 14. The lengths of the power wires 14 are also equal; in addition, the first power wire 12 is connected to the power supply Vcc, and the second power wire 14 is grounded to Gnd.

由于每一发光模块与第一电源导线12和第二电源导线14长度相同，故流进每一发光模块的电流亦会相同；而发光模块内的每一发光二极管的阴极端与第一电源导线12的长度相同，其阳极端与第二电源导线14的长度也相同，故流进每一发光二极管的电流亦会相同，故每一发光二极管的亮度相同，藉以得到一具有均匀发光功能的发光键盘。Since each light-emitting module has the same length as the first power lead 12 and the second power lead 14, the current flowing into each light-emitting module will also be the same; 12 have the same length, and the length of its anode terminal and the second power supply wire 14 is also the same, so the current flowing into each LED will be the same, so the brightness of each LED is the same, so as to obtain a luminous light with uniform luminous function. keyboard.

虽然本发明已以优选实施例公开如上，然其并非用以限定本发明，任何本领域技术人员，在不脱离本发明的精神和范围的情况下，可进行更动与润饰，因此本发明的保护范围以所提出的权利要求限定的范围为准。Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection is as defined by the appended claims.

Claims (9)

1. light emitting module comprises:
One first power lead is connected to one first power supply node;
One second source lead is connected to a second source node;
A plurality of light-emitting devices, one first end points and one second end points of each described light-emitting device are connected respectively to described first and second power leads;
Wherein, each described light-emitting device comprises:
One the 3rd power lead is connected to described first end points;
One the 4th power lead is connected to described second end points;
A plurality of light-emitting components, one first end and one second end of each described light-emitting component are connected respectively to described third and fourth power lead;
Wherein, described first power lead that is provided with between adjacent described first end points of two-phase in office all has equal lengths, and the described second source lead that is provided with between adjacent described second end points of two-phase in office all has equal lengths; And begin by described first power supply node, through single any described light-emitting device and arrive described second source node, the total length of described first and second power leads of process equate; Begin by described first end points, through single any described light-emitting component and arrive described second end points, the total length of described third and fourth power lead of process equate.
2. light emitting module as claimed in claim 1, wherein, described first power lead is a high potential, described second source lead is an electronegative potential.
3. light emitting module as claimed in claim 2, wherein, described light-emitting device is a light-emitting diode, and its anode connects described first power lead, and its negative electrode connects described second source lead.
4. light emitting module as claimed in claim 1, wherein, the described first and the 3rd power lead is a high potential, the described second and the 4th power lead is an electronegative potential.
5. light emitting module as claimed in claim 4, wherein, described light-emitting component is a light-emitting diode, and its anode connects described first power lead, and its negative electrode connects described second source lead.
6. illuminated keyboard comprises:
One keyboard device, have a base plate and at least one button, wherein said button is arranged on the described base plate in the mode that can described relatively base plate moves up and down, and described base plate has first and second power lead, is connected respectively to one first power supply node and a second source node; And
A plurality of light-emitting devices, first end points of each described light-emitting device connects described first power lead, and its second end points connects described second source lead;
Wherein, each described light-emitting device comprises:
One the 3rd power lead is connected to described first end points;
One the 4th power lead is connected to described second end points;
A plurality of light-emitting components, one first end and one second end of each described light-emitting component are connected respectively to described third and fourth power lead;
Wherein, described first power lead that is provided with between adjacent described first end points of two-phase in office all has equal lengths, and the described second source lead that is provided with between adjacent described second end points of two-phase in office all has equal lengths; And begin by described first power supply node, through single any described light-emitting device and arrive described second source node, the total length of described first and second power leads of process equate; Begin by described first end points, through single any described light-emitting component and arrive described second end points, the total length of described third and fourth power lead of process equate.
7. illuminated keyboard as claimed in claim 6, wherein, described first power lead is a high potential, described second source lead is an electronegative potential.
8. illuminated keyboard as claimed in claim 6, wherein, described light-emitting device is a light-emitting diode, and its anode connects described first power lead, and its negative electrode connects described second source lead.
9. illuminated keyboard as claimed in claim 6, these a plurality of light-emitting devices are arranged on the button below in man-to-man mode.
CNB031471749A 2003-07-08 2003-07-08 Light emitting module and keyboard using same Expired - Lifetime CN100482028C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB031471749A CN100482028C (en) 2003-07-08 2003-07-08 Light emitting module and keyboard using same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB031471749A CN100482028C (en) 2003-07-08 2003-07-08 Light emitting module and keyboard using same

Publications (2)

Publication Number Publication Date
CN1568120A CN1568120A (en) 2005-01-19
CN100482028C true CN100482028C (en) 2009-04-22

Family

ID=34471871

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB031471749A Expired - Lifetime CN100482028C (en) 2003-07-08 2003-07-08 Light emitting module and keyboard using same

Country Status (1)

Country Link
CN (1) CN100482028C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114068221A (en) * 2020-08-05 2022-02-18 群光电能科技股份有限公司 Luminous keyboard and backlight module thereof
US12061353B2 (en) 2022-04-08 2024-08-13 Darfon Electronics Corp. Backlit module and key for backlit keyboard
US12394580B2 (en) 2022-04-08 2025-08-19 Darfon Electronics Corp. Luminous keyboard and illuminant board thereof

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5297521B2 (en) * 2009-03-05 2013-09-25 シャープ株式会社 Light emitting module, light emitting module unit and backlight system
FR2964984B1 (en) * 2010-09-17 2012-08-31 Alcan Int Ltd DEVICE FOR ELECTRICALLY CONNECTING BETWEEN TWO SUCCESSIVE ALUMINUM CELLS
CN108777902A (en) * 2018-08-02 2018-11-09 骆武宁 Connection method and the low-loss LED light of tunable optical are pressed in a kind of constant current of LED light
CN109982487A (en) * 2019-04-23 2019-07-05 珠海其美光电科技有限公司 A kind of LED line shape lamp of isometric impedance
CN112596300A (en) * 2020-12-16 2021-04-02 Tcl华星光电技术有限公司 Backlight module and display device
CN119132860A (en) * 2023-06-13 2024-12-13 重庆达方电子有限公司 Light emitting module

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6179432B1 (en) * 1999-01-12 2001-01-30 Compaq Computer Corporation Lighting system for a keyboard
US6217183B1 (en) * 1999-09-15 2001-04-17 Michael Shipman Keyboard having illuminated keys
CN2478172Y (en) * 2001-05-31 2002-02-20 孙恒元 Luminous keyboard of computer
CN1375845A (en) * 2001-03-21 2002-10-23 松下电器产业株式会社 Lighting parts and lighting apparatus using said lighting parts

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6179432B1 (en) * 1999-01-12 2001-01-30 Compaq Computer Corporation Lighting system for a keyboard
US6217183B1 (en) * 1999-09-15 2001-04-17 Michael Shipman Keyboard having illuminated keys
CN1375845A (en) * 2001-03-21 2002-10-23 松下电器产业株式会社 Lighting parts and lighting apparatus using said lighting parts
CN2478172Y (en) * 2001-05-31 2002-02-20 孙恒元 Luminous keyboard of computer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114068221A (en) * 2020-08-05 2022-02-18 群光电能科技股份有限公司 Luminous keyboard and backlight module thereof
US12061353B2 (en) 2022-04-08 2024-08-13 Darfon Electronics Corp. Backlit module and key for backlit keyboard
US12394580B2 (en) 2022-04-08 2025-08-19 Darfon Electronics Corp. Luminous keyboard and illuminant board thereof

Also Published As

Publication number Publication date
CN1568120A (en) 2005-01-19

Similar Documents

Publication Publication Date Title
US7714334B2 (en) Polarless surface mounting light emitting diode
US6635902B1 (en) Serial connection structure of light emitting diode chip
CN100482028C (en) Light emitting module and keyboard using same
ATE500616T1 (en) LIGHT EMITTING COMPONENT WITH LIGHT EMITTING DIODES
DE50209685D1 (en) LUMINAIRE DIODE PANEL AND PCB
JP2009135402A (en) Array light source using light-emitting diode, and backlight unit including the same
CN104717792A (en) Light emitting diode driving apparatus and light emitting diode lighting apparatus
TWI449266B (en) Flat cable unit with light emitting element
WO2015010972A2 (en) Power supply for led lighting system
US6229266B1 (en) Voltage level indicator
JP2006237409A (en) Light emitting diode and its manufacturing method
CN101871582A (en) light emitting device
US9484493B2 (en) Rectifying unit, a light emitting diode device, and the combination thereof
US6964531B2 (en) Light module and keyboard utilizing same
CN101713521B (en) AC light emitting diode structure
US9578698B2 (en) Light emitted diode circuit
KR101322453B1 (en) Light emitting diode package
JP6666194B2 (en) Light emitting device
CN119132860A (en) Light emitting module
TWM658154U (en) Improved light emitting diode backlight module
CN222283531U (en) Improved LED backlight module
TWI736316B (en) Light source module and electrical device using the same
WO2013076480A2 (en) Led light source with passive chromaticity tuning
KR101120702B1 (en) LED module
CN100529857C (en) power supply circuit

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20090422