Liquid crystal display testing device

Abstract

The utility model relates to a liquid crystal screen testing device. The liquid crystal screen testing device comprises a liquid crystal screen testing box, a signal amplifier, a second signal flat cable, at least two testing units and at least one third signal flat cable, the liquid crystal screen testing box is provided with a first signal flat cable, each testing unit comprises an adapter plate and a liquid crystal screen power connector connected with the adapter plate, the adapter plate is used for being connected with a liquid crystal screen, and the first signal flat cable is connected with the first signal flat cable. The first signal flat cable is connected with the second signal flat cable through the signal amplifier, the adapter plates are connected in series through the third signal flat cable, and the second signal flat cable is connected with one of the adapter plates. The liquid crystal screen testing device can be used for testing a plurality of liquid crystal screens at the same time, and compared with an existing liquid crystal screen testing mode, the efficiency is improved by times.

Description

Technical Field

[0001] The utility model relates to a liquid crystal screen testing device. Background Art

[0002] During the touch screen production process, there is a step to test the LCD screen to check whether the LCD screen can display images normally. The LCD test box is required for testing. Figure 1 The LCD test box 10 has a connecting cable 101, which includes a signal cable and a power cable. The LCD test box 10 is powered on, and the connecting cable 101 is connected to the cable 201 of the LCD 20 through the connecting board 30. Then, the LCD test box 10 is operated according to the steps to complete the test of the LCD 20.

[0003] Currently, the LCD screen test box can only connect one LCD screen at a time, and it takes a certain amount of time to complete a round of testing on the LCD screen. In this way, the total time consumption of testing one LCD screen at a time is relatively long and the efficiency is relatively low. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a liquid crystal screen testing device capable of testing multiple liquid crystal screens at the same time on the basis of the above-mentioned liquid crystal screen testing box, thereby shortening the total time consumed in testing multiple liquid crystal screens and improving efficiency.

[0005] In order to solve the above technical problems, the utility model provides a liquid crystal screen testing device, which includes a liquid crystal screen test box, the liquid crystal screen test box has a first signal cable, the liquid crystal screen testing device also includes a signal amplifier, a second signal cable, at least two test units and at least one third signal cable, the test unit includes an adapter board and a liquid crystal screen power connector connected to the adapter board, the adapter board is used to connect to the liquid crystal screen, the first signal cable is connected to the second signal cable through the signal amplifier, the adapter boards are connected in series through the third signal cable, and the second signal cable is connected to one of the adapter boards.

[0006] The above-mentioned LCD screen testing device can be used to test multiple LCD screens at the same time, and the efficiency is doubled compared with the existing LCD screen testing method.

[0007] In some embodiments of the present utility model, the adapter board is a double-sided cable adapter board, the LCD screen power connector is connected to the adapter board through a power line, and the power line is welded to the adapter board.

[0008] In some embodiments of the present utility model, the LCD screen testing device further includes an LCD screen placement tool, and the LCD screen placement tool includes a plate having at least two LCD screen placement grooves disposed thereon.

[0009] In some embodiments of the utility model, the LCD screen placement tool also includes a base and a support column, the support column is fixed on the base, the plate is fixed on the support column, and the angle between the plate and the support column is adjustable.

[0010] In some embodiments of the present utility model, the test unit also includes a connecting cable and a connector. The adapter board is connected to the connector through the connecting cable. The connector is used to connect to the LCD screen. The connector is fixed on the board and corresponds one-to-one with the LCD screen placement slot.

[0011] In several embodiments of the utility model, the LCD placement tool is provided with two upper and lower rows of LCD placement grooves, the upper and lower rows of LCD placement grooves are staggered, a gap is left between two adjacent LCD placement grooves in the upper row, and the connectors corresponding to the corresponding LCD placement grooves in the lower row are located in the gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0013] Figure 1 A schematic diagram of the connection between an existing LCD test box and an LCD screen;

[0014] Figure 2 This is a schematic diagram of the connection between a liquid crystal screen testing device and a liquid crystal screen in one embodiment of the utility model;

[0015] Figure 3 for Figure 2 A schematic diagram of the test unit shown;

[0016] Figure 4 for Figure 3 A partial enlarged view of

[0017] Figure 5 This is a schematic diagram of an LCD screen after a connector is installed in a tooling after being placed in one embodiment of the utility model;

[0018] Figure 6 for Figure 5 A schematic diagram of the LCD screen placement tooling from another perspective is shown. DETAILED DESCRIPTION

[0019] Figure 2 This is a schematic diagram of the connection between the LCD screen test device and the LCD screen in one embodiment of the utility model. Figure 2In this embodiment, the LCD test device provided by the utility model includes an LCD test box 1, a signal amplifier 2, a second signal cable 3, four test units 4 and three third signal cables 5. The LCD test box 1 has a first signal cable 11, which is connected to the second signal cable 3 through the signal amplifier 2. The signal amplifier 2 can amplify the test signal output by the LCD test box 1 to solve the problem of signal attenuation. The test unit 4 includes an adapter board 41 and an LCD power connector 42 connected to the adapter board 41. Each adapter board 41 is connected in series through the third signal cable 5, and the second signal cable 3 is connected to one of the adapter boards 41. The amplified test signal is transmitted to the corresponding adapter board 41 through the second signal cable 3, and then transmitted to other adapter boards 41 in sequence through the third signal cable 5. Each LCD 6 is powered by the corresponding LCD power connector 42, and the signal amplifier 2 and the LCD test box 1 are respectively equipped with power connectors, so there is no problem of insufficient power supply. In other embodiments of the present invention, fewer or more test units 4 may be provided as required, and the number of third signal cables 5 may be increased or decreased accordingly.

[0020] See also Figure 2 and 3 The test unit 4 further includes a connecting cable 43 and a connector 44. The adapter board 41 is connected to the connector 44 through the connecting cable 43. The connector 44 is used to connect to the cable 61 of the LCD screen 6. The cable 61 and the connecting cable 43 both include a power cable and a signal cable. The LCD screen power connector 42 supplies power to the LCD screen 6 through the power cable of the connecting cable 43 and the cable 61. The test signal from the second signal cable 3 or the third signal cable 5 is transmitted to the LCD screen 6 through the signal cable of the connecting cable 43 and the cable 61. In other embodiments of the utility model, the adapter board 41 can also be directly connected to the cable 61 of the LCD screen 6.

[0021] See also Figure 4 The adapter board 41 is a double-sided cable adapter board, and the LCD screen power connector 42 is connected to the adapter board 41 through a power line, and the power line is welded on the adapter board 41, which solves the problem that the ordinary power line is inconvenient to connect to the interface of the adapter board 41.

[0022] See also Figure 5In one embodiment of the utility model, the LCD test device provided by the utility model further includes an LCD placement tool 7, which includes a plate 71, on which four LCD placement slots 711 are provided, and the connector 44 is fixed on the plate 71, corresponding to the LCD placement slots 711 one by one. The four LCD placement slots 711 are divided into two rows, upper and lower, and the upper and lower rows of LCD placement slots 711 are staggered. A gap is left between two adjacent LCD placement slots 711 in the upper row, and the connector 44 corresponding to the corresponding LCD placement slot 711 in the lower row is located in the gap, so as to maximize the use of the space on the plate 71. The connecting cable 43 is connected to the connector 44 on the plate 71, and the LCD 6 is placed in the LCD placement slot 711. The cable 61 of the LCD 6 is inserted into the connecting seat 44, and the LCD 6 is tested and replaced in the plate 71 area, which is convenient for operation and observation. In other embodiments of the present invention, the LCD placement grooves 711 on the plate 71 may also be arranged in other ways, or the LCD placement tool 7 may not be provided (see Figure 2 ).

[0023] See also Figure 6 The LCD screen placement tool 7 also includes a base 72 and a support column 73. The support column 73 is fixed on the base 72, and the plate 71 is fixed on the support column 73. The angle between the plate 71 and the support column 73 is adjustable, so that the orientation of the LCD screen 6 on the plate 71 is flexibly adjustable, which is convenient for different people to operate and observe.

Claims

1. A liquid crystal screen testing device, comprising a liquid crystal screen testing box (1), the liquid crystal screen testing box (1) having a first signal cable, characterized in that: The liquid crystal screen test device further comprises a signal amplifier (2), a second signal cable (3), at least two test units (4) and at least one third signal cable (5); the test unit (4) comprises an adapter board (41) and a liquid crystal screen power connector (42) connected to the adapter board (41); the adapter board (41) is used to connect to the liquid crystal screen (6); the first signal cable is connected to the second signal cable (3) via the signal amplifier (2); the adapter boards (41) are connected in series via the third signal cable (5); and the second signal cable (3) is connected to one of the adapter boards (41).

2. The liquid crystal screen testing device according to claim 1, characterized in that: The adapter plate (41) is a double-sided wiring adapter plate (41); the LCD screen power connector (42) is connected to the adapter plate (41) via a power line, and the power line is welded to the adapter plate (41).

3. The liquid crystal screen testing device according to claim 1, characterized in that: The liquid crystal screen testing device further comprises a liquid crystal screen placement tool (7), wherein the liquid crystal screen placement tool (7) comprises a plate (71), and at least two liquid crystal screen placement grooves (711) are provided on the plate (71).

4. The liquid crystal screen testing device according to claim 3, characterized in that: The liquid crystal screen placement tool (7) further comprises a base (72) and a support column (73); the support column (73) is fixed on the base (72); the plate (71) is fixed on the support column (73); and the angle between the plate (71) and the support column (73) is adjustable.

5. The liquid crystal screen testing device according to claim 3, characterized in that: The test unit (4) further comprises a connecting cable (43) and a connector (44); the adapter board (41) is connected to the connector (44) via the connecting cable (43); the connector (44) is used to connect to the liquid crystal screen (6); the connector (44) is fixed on the plate (71) and corresponds one-to-one with the liquid crystal screen placement groove (711).

6. The liquid crystal screen testing device according to claim 5, characterized in that: The LCD placement tool (7) is provided with two upper and lower rows of LCD placement grooves (711), the upper and lower rows of LCD placement grooves (711) are staggered, a gap is left between two adjacent LCD placement grooves (711) in the upper row, and the connectors (44) corresponding to the corresponding LCD placement grooves (711) in the lower row are located in the gap.

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