CN219418465U

CN219418465U - Multi-purpose COG LCD lighting test board

Info

Publication number: CN219418465U
Application number: CN202320429690.7U
Authority: CN
Inventors: 程宝安; 许鑫
Original assignee: Lu'an Jingrun Optoelectronics Technology Co ltd
Current assignee: Lu'an Jingrun Optoelectronics Technology Co ltd
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-07-25
Anticipated expiration: 2033-03-09

Abstract

The utility model relates to the technical field of liquid crystal module screens, in particular to a multi-purpose COG liquid crystal display screen lighting test board, which comprises a test board, wherein the lower end of the test board is provided with a plurality of groups of first flying line ports which are arranged at equal intervals, the upper end of the test board is provided with a plurality of groups of second flying line ports which are arranged at equal intervals, one side of the test board is provided with a voltage stabilizer, the edge of the upper end of the test board is provided with a power supply, the middle part of the test board is provided with a push-pull chip, a singlechip is arranged between the push-pull chip and the first flying line ports, the other side of the test board is provided with a plurality of keys, the first flying line ports are electrically connected with the singlechip, the second flying line ports are electrically connected with the singlechip, and the push-pull chip is electrically connected with the power supply. According to the utility model, only one PCB is used for testing various display screens, so that the situation that only one PCB test board corresponds to only one COG module display screen is avoided, and the cost is reduced.

Description

Multi-purpose COG LCD lighting test board

Technical Field

The utility model relates to the technical field of liquid crystal module screens, in particular to a multi-purpose COG liquid crystal display screen lighting test board.

Background

At present, as the demand of the market for liquid crystal screens rises, customers pay more attention to the quality of products, liquid crystal screen layers of various specifications and models in the market come out endlessly, and factory testing becomes an indispensable link;

the existing PCB test board can only test a single COG module display screen, and the cost of a testing jig for custom testing various COG module liquid crystal screens is increased due to the diversity of modules, so that the manufacturing difficulty is high.

For this purpose, a multi-purpose COG liquid crystal display lighting test board is proposed.

Disclosure of Invention

The utility model relates to the technical field of liquid crystal module screens, and aims to solve the defects in the prior art, and provides a multi-purpose COG liquid crystal display screen lighting test board.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a multi-purpose COG LCD lights test panel, includes the test panel, the lower extreme of test panel is provided with the first flying lead port of a plurality of equidistance arrangements of group, the upper end of test panel is provided with the second flying lead port of a plurality of equidistance arrangements, one side of test panel is provided with the stabiliser, the upper end edge of test panel is provided with the power, the middle part of test panel is provided with push-pull chip, be provided with the singlechip between push-pull chip and the first flying lead port, the opposite side of test panel is provided with a plurality of buttons, first flying lead port and singlechip electric connection, second flying lead port and singlechip electric connection, singlechip and power electric connection, push-pull chip and singlechip electric connection.

Preferably, the upper end of the test board is also provided with an LED signal indicator lamp.

Preferably, the model of the singlechip is STC15W408AS.

Preferably, the push-pull chip is of the type TXS0108EPWR.

Preferably, the voltage stabilizer is of the type AMS1117.

The utility model has the beneficial effects that:

1. only one PCB is used for testing various display screens, so that the situation that only one PCB test board corresponds to only one COG module display screen is avoided, and the cost is reduced.

2. The liquid crystal display is connected with the PCB board with the corresponding PIN distance, then the switch is turned on, the driving chip in the liquid crystal display is driven by the driving program, the screen is lightened, the display pattern is switched by touching the key, when the pattern is displayed on the screen, whether the pattern display is normal or not is watched, if the pattern display is incomplete, the defective product is obtained, and therefore the purpose of rapidly detecting the display screen is achieved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

In the figure: 1. a first fly line port; 2. a second fly line port; 3. a voltage stabilizer; 4. a power supply; 5. a push-pull chip; 6. a single chip microcomputer; 7. a key; 8. LED signal indicator lamp.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which the embodiments described below are only some, but not all, of the embodiments of the present utility model.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

Referring to fig. 1, a multipurpose COG liquid crystal display panel lighting test board comprises a test board, wherein the test board comprises a single chip microcomputer 6 with the model of STC15W408AS, an LED signal indicator lamp 8, a wire, a dc_5v power supply, a switch, a 3.3V voltage stabilizer 3 with the model of AMS1117, a push-pull chip 5 with 8-bit bidirectional voltage level converted into an open drain and a TXS0108EPWR, three keys 7, the keys 7 can control image switching, one side of the test board is provided with a plurality of groups of first flying line ports 1 with 5V arranged at equal intervals, the other side of the test board is provided with a plurality of groups of second flying line ports 2 with 3.3V arranged at equal intervals, the first flying line ports 1 are electrically connected with the single chip microcomputer 6, the second flying line ports 2 are electrically connected with the single chip microcomputer 6, the single chip 6 is electrically connected with the power supply 4, and the push-pull chip 5 is electrically connected with the single chip microcomputer 6.

When the utility model is used, the PIN foot definition and the PIN distance of the liquid crystal screen are firstly determined, the first flying lead port 1 and the second flying lead port 2 are connected in a flying lead mode, then the flying leads are connected to the PCB board corresponding to the PIN distance, finally the liquid crystal screen is connected with the PCB board corresponding to the PIN distance, a switch is turned on, a driving chip in the liquid crystal display screen is driven by a driving program, the screen is lighted, the display pattern is switched by touching the key 7, whether the pattern display is normal is watched when the pattern is displayed on the screen, and if the pattern display is incomplete, the defective product is obtained.

It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a test panel is lighted to multi-purpose COG LCD, its characterized in that, including the test panel, the lower extreme of test panel is provided with first flying lead port (1) of a plurality of equidistance arrangements of group, the upper end of test panel is provided with second flying lead port (2) of a plurality of equidistance arrangements of group, one side of test panel is provided with stabiliser (3), the upper end edge of test panel is provided with power (4), the middle part of test panel is provided with push-pull chip (5), be provided with singlechip (6) between push-pull chip (5) and first flying lead port (1), the opposite side of test panel is provided with a plurality of buttons (7), first flying lead port (1) and singlechip (6) electric connection, second flying lead port (2) and singlechip (6) electric connection, singlechip (6) and power (4) electric connection, push-pull chip (5) and singlechip (6) electric connection.

2. The multipurpose COG liquid crystal display lighting test board according to claim 1, wherein the upper end of the test board is further provided with an LED signal indicator lamp (8).

3. The multipurpose COG liquid crystal display lighting test board according to claim 1, wherein the model of the single chip microcomputer (6) is STC15W408AS.

4. The multipurpose COG liquid crystal display lighting test board according to claim 1, wherein the push-pull chip (5) is of the type TXS0108EPWR.

5. The multipurpose COG liquid crystal display lighting test board according to claim 1, wherein the voltage stabilizer (3) is of the type AMS1117.