Testing device for RGB (Red, Green, Blue) three-color lamp backlight plate

Abstract

The utility model discloses a testing device for an RGB three-color light backlight plate, which belongs to the technical field of backlight plates and comprises a power supply box and a positioning plate, a control device is mounted on the power supply box and comprises a key block, three RGB testing keys are mounted on the key block and penetrate through the surface of one side of the power supply box, and the RGB testing keys penetrate through the positioning plate. A sunken positioning groove is formed in the positioning plate, a spot measurement device is arranged at the bottom of the positioning plate, the spot measurement device comprises an ejector pin mechanism, the ejector pin mechanism comprises four elastic telescopic ejector pins corresponding to the RGB contact pieces, the ejector pins are electrically connected with the RGB test key, and the ejector pins penetrate through the bottom of the positioning groove and extend into the positioning groove. According to the RGB three-color lamp bead detection device, the use conditions of RGB three-color lamp beads with three colors can be rapidly detected, the use is convenient and rapid, and in the detection process, the detection that the light-emitting area of the RGB three-color lamp backlight plate faces upwards and the RGB contact piece faces downwards can be realized, so that the light-emitting condition of the RGB three-color lamp of the RGB three-color lamp backlight plate can be conveniently observed in the detection process.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight panels, in particular to a testing device for RGB three-color lamp backlight panels. Background Art

[0002] RGB three-color backlight board, as the name suggests, is a light source board with RGB three-color LED lights installed on the backlight board. As the light source board of LED lights, RGB three-color backlight board is used in household products. It is usually used in products that require multiple colors (usually three colors red-green-blue) to change the indicator light source. When the user uses the product, when the state of the product changes, a three-color light source with changing color is generated, so that the user can perceive the different states of the product according to the color-changing light source, and then the user adjusts the effect on the product accordingly during use.

[0003] After the RGB three-color backlight board is assembled, in order to ensure the quality of the product, it is necessary to test the product to see whether the RGB three-color lamp beads are normally displayed. In the existing detection technology, the pins of the test device are usually used to connect the positive and negative poles of the RGB contact pieces of the LED lights of each color in the RGB three-color backlight board to conduct a continuity test to observe whether the corresponding LED lights of each color are normally lit. During the test, since the pins need to be connected manually, only the status of the lamp beads of one color in the RGB three-color backlight board can be measured each time, which leads to low detection efficiency. Moreover, the RGB three-color backlight board, RGB contact piece and light-emitting area to be tested need to be on the same side, so that it is easy to observe during inspection.

[0004] However, for products where the RGB contact sheet and the light emitting area are not on the same side, refer to Figure 11 、 Figure 12 As shown, the front of the RGB three-color lamp backlight panel is the luminous area after the light bar is transmitted, and there is a sunken groove on one side of the back of the RGB three-color lamp backlight panel. The RGB contact piece of the light bar is exposed in the sunken groove. There are 4 RGB contact pieces, including a positive piece and three negative pieces corresponding to the three colors of the RGB three-color lamp. During detection, it is necessary to manually contact the positive pin of the detection device with the positive piece in the RGB contact piece, and then connect the negative pin of the detection device with the negative piece in the RGB contact piece in turn. Since the RGB contact piece and the luminous area are not on the same surface, the luminous area is facing downward during detection. After the detection is turned on, it is inconvenient for one person to observe the backlight panel.

[0005] Therefore, in view of this, it is necessary to design a device that is convenient for detecting RGB three-color lamp backlight panels, especially backlight panels where the RGB contact sheet and the light-emitting area are not on the same surface, so as to improve the detection efficiency of the backlight panel. Utility Model Content

[0006] The utility model aims to provide a testing device for RGB three-color lamp backlight board, aiming to solve the problem of RGB three-color lamp backlight board testing.

[0007] In response to this, the technical solution provided by the present invention is: a testing device for an RGB three-color lamp backlight panel, comprising a power box and a positioning plate, a control device being installed on the power box, the control device comprising a key block installed inside the power box, the key block being installed with three RGB test keys, and the three RGB test keys being passed through the surface of one side of the power box, the positioning plate being installed and connected to the power box on the other side surface of the RGB test keys, a sunken positioning groove being provided on the positioning plate, a point measuring device being provided at the bottom of the positioning plate, the point measuring device comprising a pin mechanism, the pin mechanism comprising four elastically retractable pins corresponding to the RGB contact sheets, the pins being electrically connected to the RGB test keys, and the pins extending into the positioning groove through the bottom of the positioning groove. The utility model, during testing, places the RGB three-color lamp backlight board with the light-emitting area facing upward in the positioning groove, the shape of the positioning groove is consistent with the shape of the RGB three-color lamp backlight board, after positioning, the RGB contact piece of the RGB three-color lamp backlight board elastically rests on the elastic ejector pin, turns on the power, presses the three RGB test buttons in sequence, each RGB test button is corresponding to connect the three colors of RGB three-color lamp beads, after connection, observes the light-emitting conditions of the light-emitting area respectively, thereby realizing the rapid testing of the RGB three-color lamp beads of the RGB three-color lamp backlight board.

[0008] Furthermore, the ejector mechanism includes a sleeve with a spring sleeved therein. One end of the ejector is movably sleeved within the sleeve, and the ejector presses against one end of the spring. The spring allows the ejector to elastically retract within the sleeve. Therefore, during RGB backlight panel testing, the ejector can elastically press against the RGB contact piece to achieve circuit continuity.

[0009] Furthermore, the point detection device also includes a sleeve seat for positioning the sleeve, and the bottom of the sleeve seat is provided with four first wire connectors corresponding to the ejector pins, and the first wire connectors abut against the bottom of the sleeve to form an electrical connection.

[0010] Furthermore, the positioning plate is provided with a square hand hole, which intersects the positioning slot at right angles. Once the RGB backlight panel is positioned within the slot, the hand hole forms a hollowed-out arrangement on either side of the panel, making it easier to remove the panel from the slot after testing.

[0011] Furthermore, a pad is provided in the positioning groove, with a notch on one side for the ejector pin. The upper surface of the pad is covered with a layer of silicone pad. During the test, the RGB backlight panel rests on the soft silicone pad to prevent it from being bumped during the test.

[0012] The utility model can realize the rapid detection and positioning of the RGB three-color lamp backlight panel by the positioning groove of the testing device. After positioning, it is only necessary to press three corresponding RGB test buttons, so as to realize the rapid detection of the usage of the three colors of RGB three-color lamp beads, which is convenient and quick to use.

[0013] The utility model discloses a testing device that can realize testing with the luminous area of ​​the RGB three-color lamp backlight plate facing upwards and the RGB contact sheet facing downwards, thereby facilitating observation of the luminous conditions of the RGB three-color lamps of the RGB three-color lamp backlight plate during the testing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the three-dimensional structure of the test device.

[0015] Figure 2 Schematic diagram of the internal three-dimensional structure of the test device.

[0016] Figure 3 This is a schematic diagram of the test device structure with an RGB three-color light backlight panel fixed.

[0017] Figure 4 It is a schematic diagram of the three-dimensional structure of the positioning plate.

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the pad.

[0019] Figure 6 This is one of the three-dimensional structural diagrams of the point measurement device.

[0020] Figure 7 This is the second schematic diagram of the three-dimensional structure of the point measurement device.

[0021] Figure 8 It is a schematic diagram of the three-dimensional structure of the ejector mechanism.

[0022] Figure 9 It is a schematic diagram of the internal cross-section of the ejector mechanism.

[0023] Figure 10 It is a schematic diagram of the three-dimensional structure of the control device.

[0024] Figure 11 This is one of the schematic diagrams of the three-dimensional structure of the RGB three-color light backlight panel.

[0025] Figure 12This is the second schematic diagram of the three-dimensional structure of the RGB three-color light backlight panel.

[0026] Among them: 1-power box, 2-positioning plate, 21-positioning slot, 22-hand hole, 23-thimble hole, 24-connecting hole, 3-pad, 31-silicone pad, 32-notch, 4-point measuring device, 41-thimble mechanism, 411-thimble, 412-spring, 413-sleeve, 42-sleeve seat, 43-first wire connector, 5-RGB three-color light backlight panel, 51-light-emitting area, 52-sunk groove, 53-RGB contact piece, 6-control device, 61-RGB test button, 62-button block, 63-second wire connector, 7-wire. DETAILED DESCRIPTION

[0027] The following is a brief description of the embodiments of the present invention with reference to the accompanying drawings.

[0028] In this embodiment, the structure of the RGB three-color lamp backlight plate 5 is as follows: Figure 11 、 Figure 12 As shown, the front of the RGB three-color lamp backlight panel 5 is the light-emitting area 51 after the light bar is transmitted, and there is a sunken groove 52 on one side of the back of the RGB three-color lamp backlight panel 5. The RGB contact piece 53 of the light bar is exposed in the sunken groove 52. There are four RGB contact pieces 53, including a positive electrode piece and three negative electrode pieces corresponding to the three colors of the RGB three-color lamp.

[0029] A test device for RGB three-color lamp backlight panel, refer to 1- Figure 3 , including a power box 1, a positioning plate 2, a control device 6 is installed on the power box 1, and the control device 6, refer to Figure 10 , including a button block 62, which is installed at the bottom of the power box 1, and three RGB test buttons 61 are installed on the button block 62. The three RGB test buttons 61 correspond to the test buttons of the three colors (red-green-blue) of the RGB three-color light of the RGB three-color light backlight panel 5. The three RGB test buttons 61 pass through the surface of one side of the power box 1.

[0030] The positioning plate 2 is installed and connected to the power box 1 on the other side of the RGB test button 61. Figure 4 , a sunken positioning groove 21 is provided on the positioning plate 2, and the shape of the positioning groove 21 is consistent with the shape of the RGB three-color lamp backlight plate 5. In order to facilitate the positioning groove 21 in positioning the RGB three-color lamp backlight plate 5 and removing it after the test is completed, a square hand hole 22 is provided on the positioning plate 2, and the hand hole 22 is arranged at a right angle to the positioning groove 21. After the RGB three-color lamp backlight plate 5 is positioned in the positioning groove 21, the hand hole 22 forms a hollow setting on both sides of the RGB three-color lamp backlight plate 5. In order to protect the RGB three-color lamp backlight plate 5 from damage during the detection process, a pad 3 is provided in the positioning groove 21. Figure 5 One side of the pad 3 is provided with a notch 32, and the upper surface of the pad 3 is covered with a layer of silicone pad 31. Since the silicone pad 31 is soft, the RGB three-color lamp backlight panel 5 is placed on the soft silicone pad 31 during the test. The silicone pad 31 can well protect the RGB three-color lamp backlight panel 5 from being bumped.

[0031] A point measuring device 4 is provided at the bottom of the positioning plate 2 . A connecting hole 24 for fixing the point measuring device 4 is provided at the bottom of the positioning groove 21 of the positioning plate 2 . The point measuring device 4 and the positioning plate 2 are fixedly connected by screws through the connecting hole 24 .

[0032] Point measuring device 4, refer to Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 , including a pin mechanism 41, a sleeve seat 42 and a first wire connector 43, the pin mechanism 41, including four elastically retractable pins 411 and sleeves 413 corresponding to the RGB contact piece 53, the pins 411 and the sleeves 413 are both made of conductive metal materials, a spring 412 is sleeved in the sleeve 413, one end of the pin 411 is movably sleeved in the sleeve 413, the pin 411 is pressed against one end of the spring 412, and the pin 411 can be elastically retracted in the sleeve 413 through the spring 412, thus, in the RGB three-color lamp backlight panel 5 inspection During testing, the ejector pin 411 can be elastically pressed against the RGB contact piece 53 to form a circuit conduction. The sleeve seat 42 is used to position the sleeve 413, so that the ejector pin mechanism 41 is positioned on the sleeve seat 42. The sleeve seat 42 is fixed to the bottom of the positioning groove 21. After the sleeve seat 42 is fixed, the ejector pin 411 passes through the bottom of the positioning groove 21 and extends into the positioning groove 21 through the ejector pin hole 23. The bottom of the sleeve seat 42 is provided with four first wire connectors 43 corresponding to the ejector pin 411. The first wire connector 43 abuts against the bottom of the sleeve 413 to form an electrical connection.

[0033] The four pins 411 correspond to the four RGB contact pads 53 of the RGB backlight panel 5. The first wire connector 43 is electrically connected to the second wire connector 63 extending from the bottom of the RGB test button 61 via the wire 7. The RGB test button 61 is a push-type switch. Two second wire connectors 63 are extended from the bottom of each RGB test button 61, namely, a second wire connector 63 with a positive pole and a negative pole. Among the four pins 411, one pin 411 is connected to the positive pole, and the remaining three pins 411 are connected to the negative poles of the three RGB contact pads 53, respectively. The first guide connector 43 of the positive pin 411 is connected to the positive second wire connector 63 at the bottom of each RGB test button 61 via the wire 7. The first guide connectors 43 of the three negative pins 411 are connected one-to-one to the negative second wire connector 63 extending from the bottom of the RGB test button 61 via the wire 7. In this way, the pins 411 are electrically connected to the RGB test button 61.

[0034] During the test, the light emitting area 51 of the RGB three-color lamp backlight panel 5 is placed upward in the positioning groove 21. After positioning, the RGB contact piece 53 of the RGB three-color lamp backlight panel 5 elastically rests on the elastic ejector pin 411. The power is turned on and the three RGB test buttons 61 are pressed in sequence. Each RGB test button 61 is corresponding to the connection of the three colors of RGB three-color lamp beads. After connection, the light emitting conditions of the light emitting area 51 are observed respectively, so that the RGB three-color lamp beads of the RGB three-color lamp backlight panel 5 can be quickly tested. After the test, the RGB three-color lamp backlight panel 5 can be quickly taken out through the hand hole 22, and the test is convenient and efficient.

[0035] The above embodiments merely represent implementation methods of the present invention. Although the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention.

Claims

1. A test device for RGB backlight panel, characterized by: It includes a power box and a positioning plate. The power box is equipped with a control device. The control device includes a key block installed inside the power box. The key block is equipped with three RGB test keys, and the three RGB test keys pass through the surface of one side of the power box. The positioning plate is installed and connected to the power box on the other side of the surface of the RGB test keys. A sunken positioning groove is provided on the positioning plate. A point measuring device is provided at the bottom of the positioning plate. The point measuring device includes a pin mechanism. The pin mechanism includes four elastically retractable pins corresponding to the RGB contact sheets. The pins are electrically connected to the RGB test keys, and the pins extend into the positioning groove through the bottom of the positioning groove.

2. The testing device for an RGB backlight panel according to claim 1, characterized in that: The ejector mechanism comprises a sleeve, a spring is sleeved in the sleeve, one end of the ejector is movably sleeved in the sleeve, and the ejector presses against one end of the spring.

3. The testing device for RGB backlight panel according to claim 1, characterized in that: The point measuring device further includes a sleeve seat for positioning the sleeve. The bottom of the sleeve seat is provided with four first wire connectors corresponding to the ejector pins. The first wire connectors abut against the bottom of the sleeve to form an electrical connection.

4. The testing device for an RGB backlight panel according to claim 1, characterized in that: A square hand hole is provided on the positioning plate, and the hand hole and the positioning groove are arranged to intersect at a right angle.

5. The testing device for RGB backlight panel according to claim 1, characterized in that: A pad is provided in the positioning groove, a notch is provided on one side of the pad for accommodating the ejector pin, and the upper surface of the pad is covered with a layer of silicone pad.

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