CN210323663U

CN210323663U - Turnover liquid crystal screen test fixture

Info

Publication number: CN210323663U
Application number: CN201921565792.1U
Authority: CN
Inventors: 彭建新
Original assignee: Jiangxi Holitech Technology Co Ltd
Current assignee: Jiangxi Holitech Technology Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-04-14
Anticipated expiration: 2029-09-20

Abstract

A turnover liquid crystal display test fixture comprises a fixed base, a rotating base and a test box body, wherein the rotating base is arranged on the fixed base through a rotating shaft; two ends of the rotating base are fixedly provided with a supporting column; the top of each supporting column is fixedly provided with an installation shaft; a lifting lug is fixedly arranged in the middle of each of the two ends of the test box body; the lifting lugs are respectively provided with a mounting hole matched with the mounting shaft; the test box body is arranged between the two support columns through the matching of the mounting hole and the mounting shaft; the test box body can be freely turned over by taking mounting shafts at two ends as an axis; a product positioning groove and an adapter plate positioning groove are formed in the upper surface of the test box body; a flat cable connected with a test main board in the test box body is arranged in the adapter plate positioning groove; the test mainboard is connected with a power supply through a circuit. The utility model discloses can accomplish the book of turning over of arbitrary direction when testing the LCD screen to obtain the best visual angle that detects.

Description

Turnover liquid crystal screen test fixture

Technical Field

The utility model relates to a LCD screen test technical field specifically is a LCD screen test fixture that can overturn.

Background

With the continuous development of liquid crystal display technology, the application field of liquid crystal display screens is also continuously widened. Pulled by the market of liquid crystal display screens and the backlight industry, the liquid crystal display screen presents a splendid scene. LCDs are non-emissive display devices that require a backlight to achieve the display function. Therefore, as the LCD industry tries to develop new application fields, the high performance (such as high brightness, low cost, low power consumption, light weight, etc.) of the backlight technology also plays a role as a rear assistant.

After the liquid crystal screen is assembled, some defects (black and white dots, light leakage, PI and the like) cannot be detected under a normal visual angle, and the defects are found by tilting the liquid crystal screen front and back and left and right, while the detection device of the conventional liquid crystal screen detection device can not be folded in the liquid crystal screen detection process, an inspector needs to manually lift the detection device to adjust an observation angle, but the detection device can not reach the detection suitable for any angle when the detection device is manually lifted to adjust the angle, so that the condition of detection leakage of the defective liquid crystal screen can be frequently caused, the quality of products is influenced and company public praise are caused when the defective products are delivered from a factory.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of existence among the prior art, provide a LCD screen test fixture that can overturn, solved among the prior art and examined time measuring after the equipment is accomplished to the LCD screen, LCD detection device self can't turn over a book in the testing process, can only follow an angle and go to survey or manually lift up detection device and detect, consequently the condition that bad LCD screen missed measure can often appear, influence the quality of product and the problem of company's public praise.

In order to realize the purpose, the utility model discloses a technical scheme be:

a turnover liquid crystal display test fixture comprises a fixed base, a rotating base and a test box body, wherein the rotating base is arranged on the fixed base through a rotating shaft; the rotating shaft is respectively connected with the middle parts of the fixed base and the rotating base; the rotating base can do circular motion on a horizontal plane by taking the rotating shaft as a center; two ends of the rotating base are fixedly provided with a supporting column; the top of each supporting column is fixedly provided with an installation shaft; a lifting lug is fixedly arranged in the middle of each of the two ends of the test box body; the lifting lugs are respectively provided with a mounting hole matched with the mounting shaft; the test box body is arranged between the two support columns through the matching of the mounting hole and the mounting shaft; the test box body can be freely turned over by taking mounting shafts at two ends as an axis; a product positioning groove and an adapter plate positioning groove are formed in the upper surface of the test box body; a flat cable connected with a test main board in the test box body is arranged in the adapter plate positioning groove; the test mainboard is connected with a power supply through a circuit.

Furthermore, a limit upright post is integrally formed on one end side of the fixed base and the fixed base; the limiting upright post can limit the rotation of the rotating base.

Furthermore, the supporting column and the rotating base are of an integrally formed structure; the lifting lug and the test box body are of an integrally formed structure.

Furthermore, the upper surface of the test box body is also provided with a switch key, a pause key and a power switch; the switch key, the pause key and the power switch are all arranged on an external circuit of the test mainboard in the test box body.

When the turnover liquid crystal screen test fixture is used for detecting a liquid crystal screen, a test interface of an adapter plate is aligned with a flat cable in an adapter plate positioning groove, the turnover liquid crystal screen test fixture is fixedly arranged in the adapter plate positioning groove on a test box body, the liquid crystal screen to be detected is placed in a product positioning groove on the test box body, an FPC (flexible printed circuit) of a liquid crystal screen product is inserted into a connector of the adapter plate, an external power supply of a test main board in the test box body is connected, a power switch and a switch key on the test box body are turned on, the test main board conducts power-on test on the liquid crystal screen product through the adapter plate, when the picture of the liquid crystal screen is switched to a picture convenient to observe, a pause key is pressed to enable the liquid crystal screen to keep the picture all the time and observe, during observation, the condition of picture display of the liquid crystal screen can be observed from various angles by, and finishing the detection of the liquid crystal screen.

The utility model discloses a this rotary jig has solved the inspector and need frequently lift up the problem of testing stand in to the LCD screen testing process. The utility model discloses burn the test procedure that corresponds on the mainboard in the test box, at the keysets that test box external mounting corresponds well, will await measuring test liquid crystal display and place on the product location groove, insert FPC in the keysets connector. When the display screen displays a picture convenient for observation, the pause key is pressed down, the rotating base and the test box body are rotated randomly, and after the best observation visual angle is obtained, observation and detection are carried out. The manual lifting of the test jig by an operator is not needed for observation, the labor intensity of the operator is reduced, the device can be overturned at any angle, and the risk of missed inspection is reduced.

Drawings

FIG. 1 is a schematic structural diagram of the device of the present invention;

FIG. 2 is a top view of the device of the present invention;

FIG. 3 is a front view of the device of the present invention;

fig. 4 is a side view of the inventive apparatus;

in the figure: 1. unable adjustment base, 2, rotating base, 3, test box, 4, pivot, 5, support column, 6, installation axle, 7, lug, 8, product positioning groove, 9, keysets constant head tank, 10, spacing stand, 11, switch button, 12, pause button, 13, switch.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The reversible liquid crystal display test fixture shown in fig. 1-4 comprises a fixed base 1, a rotating base 2 and a test box 3, wherein the rotating base 2 is mounted on the fixed base 1 through a rotating shaft 4; the rotating shaft 4 is respectively connected with the middle parts of the fixed base 1 and the rotating base 2; the rotating base 2 can do circular motion on a horizontal plane by taking the rotating shaft 4 as a center; two ends of the rotating base 2 are fixedly provided with a supporting column 5; the top of each supporting column 5 is fixedly provided with a mounting shaft 6; the middle parts of the two ends of the test box body 3 are fixedly provided with a lifting lug 7; the lifting lugs 7 are respectively provided with a mounting hole matched with the mounting shaft 6; the test box body 3 is arranged between the two support columns 5 through the matching of the mounting hole and the mounting shaft 6; the test box body 3 can be freely turned over by taking the mounting shafts 6 at two ends as an axis; a product positioning groove 8 and an adapter plate positioning groove 9 are formed in the upper surface of the test box body 3; a flat cable connected with a test main board in the test box body 3 is arranged in the adapter plate positioning groove 9; the test mainboard is externally connected with a power supply through a circuit; a limit upright post 10 is integrally formed on one end side of the fixed base 1 and the fixed base 1; the limiting upright post 10 can limit the rotation of the rotating base 2; the supporting column 5 and the rotating base 2 are of an integrally formed structure; the lifting lug 7 and the test box body 3 are of an integrally formed structure; the upper surface of the test box body 3 is also provided with a switch key 11, a pause key 12 and a power switch 13; the switch key 11, the pause key 12 and the power switch 13 are all arranged on an external circuit of the test mainboard in the test box body 3.

When the reversible liquid crystal screen test fixture is used for detecting a liquid crystal screen, a test interface of an adapter plate is aligned with a flat cable in an adapter plate positioning groove 9, the fixture is fixedly arranged in the adapter plate positioning groove 9 on a test box body 3, the liquid crystal screen to be tested is placed in a product positioning groove 8 on the test box body 3, an FPC (flexible printed circuit) of a liquid crystal screen product is inserted into a connector of the adapter plate, an external power supply of a test mainboard in the test box body 3 is connected, a power switch 13 and a switch button 11 on the test box body 3 are turned on, the test mainboard conducts power-on test on the liquid crystal screen product through the adapter plate, when a picture of the liquid crystal screen is switched to a picture convenient to observe, a pause key 12 is pressed to enable the liquid crystal screen to keep the picture and observe, during observation, the picture display condition of the liquid crystal screen can be observed from all angles by rotating a rotating base 2 and the test box body 3, and finishing the detection of the liquid crystal screen.

The utility model discloses a this rotary jig has solved the inspector and need frequently lift up the problem of testing stand in to the LCD screen testing process. The utility model discloses burn the test procedure that corresponds on the mainboard in test box 3, at the adapter plate that 3 externally mounted of test box had corresponded, will wait to test liquid crystal display and place on product locating slot 8, insert FPC in the adapter plate connector. When the display screen displays a picture convenient for observation, the pause key is pressed down, the rotating base 2 and the test box body 3 are rotated randomly, and after the best observation visual angle is obtained, observation and detection are carried out. The manual lifting of the test jig by an operator is not needed for observation, the labor intensity of the operator is reduced, the device can be overturned at any angle, and the risk of missed inspection is reduced.

The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations may be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reversible liquid crystal display test fixture is characterized by comprising a fixed base (1), a rotating base (2) and a test box body (3), wherein the rotating base (2) is arranged on the fixed base (1) through a rotating shaft (4); the rotating shaft (4) is respectively connected with the middle parts of the fixed base (1) and the rotating base (2); the rotating base (2) can do circular motion on a horizontal plane by taking the rotating shaft (4) as a center; two ends of the rotating base (2) are fixedly provided with a supporting column (5); the top of each supporting column (5) is fixedly provided with a mounting shaft (6); a lifting lug (7) is fixedly arranged in the middle of each of the two ends of the test box body (3); the lifting lugs (7) are respectively provided with a mounting hole matched with the mounting shaft (6); the test box body (3) is arranged between the two support columns (5) through the matching of the mounting hole and the mounting shaft (6); the test box body (3) can be freely turned over by taking the mounting shafts (6) at the two ends as an axis; a product positioning groove (8) and an adapter plate positioning groove (9) are formed in the upper surface of the test box body (3); a flat cable connected with a test main board in the test box body (3) is arranged in the adapter plate positioning groove (9); the test mainboard is connected with a power supply through a circuit.

2. A reversible liquid crystal display test fixture according to claim 1, characterized in that a limit column (10) is integrally formed with the fixed base (1) at one end side of the fixed base (1); the limiting upright post (10) can limit the rotation of the rotating base (2).

3. A reversible liquid crystal display test fixture according to claim 1, characterized in that the supporting column (5) and the rotating base (2) are of an integrated structure; the lifting lug (7) and the test box body (3) are of an integrally formed structure.

4. A reversible liquid crystal display test fixture according to claim 1, characterized in that the upper surface of the test box body (3) is further provided with a switch button (11), a pause button (12) and a power switch (13); the switch key (11), the pause key (12) and the power switch (13) are all arranged on an external circuit of the test mainboard in the test box body (3).