CN108594483A - Display screen testing tool and display screen testing method - Google Patents

Abstract

The invention discloses a display screen testing tool, which is electrically connected with testing equipment to test a display screen sample, and comprises: a base; the positioning assembly is fixed on the base and used for fixing the display screen sample; the micro-needle module is arranged on the base and is electrically connected with the testing equipment; the pressing component is movably connected with the base and used for pressing and buckling the connector of the display screen sample on the microneedle module, so that the testing equipment is electrically connected with the display screen sample. The invention also discloses a test method of the display screen. The buckling mode of the connector of the microneedle module and the display screen sample is simple and easy to operate, automatic control is easy to realize, the connector is not damaged by multiple times of buckling and separation, the testing efficiency is improved, and the production cost is reduced.

Description

Display test tooling and display test method

technical field

The invention relates to the technical field of electronic equipment, in particular to a display screen test tool and a display screen test method.

Background technique

LCD (abbreviation for Liquid Crystal Display) liquid crystal display is a flat display device, which consists of a certain number of color or black and white pixels, placed in front of the light source or reflective surface. Liquid crystal displays consume very little power, making them favored by engineers for electronic devices that run on batteries. Its main principle is to stimulate liquid crystal molecules with current to generate points, lines, and surfaces to form a picture with the back lamp tube. Liquid crystal display screens are widely used in electronic devices such as mobile phones. Before assembling the liquid crystal display screens, it is necessary to test the liquid crystal display screens to screen out bad display screens.

Contents of the invention

On the one hand, the present invention provides a kind of display screen testing fixture, is electrically connected to test equipment to test display screen sample, comprises:

base;

a positioning component, fixed on the base, and the positioning component is used to fix the display screen sample;

A microneedle module is arranged on the base, and the microneedle module is electrically connected to the test equipment;

A pressing component is movably connected to the base, and the pressing component is used to press and buckle the connector of the display screen sample on the microneedle module, so that the test equipment is electrically connected to the display screen sample .

On the other hand, the present invention also provides a method for testing a display screen, the method for testing a display screen includes:

A display screen test tool is provided, the display screen test tool includes a base, a positioning component, a microneedle module and a pressing component, the positioning component is fixed on the base, and the microneedle module is set on the base On the seat, the pressing assembly is movably connected to the base,

electrically connecting the microneedle assembly to the test equipment;

The display screen sample is fixed in the positioning assembly, and the connector of the display screen sample is placed on the microneedle module;

The pressing assembly buckles the connector of the display screen sample on the microneedle module;

The test equipment inputs a test signal to test the display screen sample.

The beneficial effects of the present invention are as follows: the display screen sample is fixed on the positioning assembly, and the pressing assembly presses the connector of the display screen sample, so that the connector of the display screen sample is buckled with the microneedle module, that is, the microneedle module and the display screen are realized The electrical connection of the sample, so that the test equipment is electrically connected to the display sample, and the operator can test the display sample by operating the test equipment. The buckling method of the microneedle module and the connector of the display sample is simple, easy to operate, and easy to realize automation Control, multiple fastening and separation without damage to the connector, improving the efficiency of testing and reducing production costs.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other obvious deformations can also be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a display screen testing tool provided by an embodiment of the present invention.

FIG. 2 is a schematic diagram of a fixed display screen sample of the display screen test tool provided by the embodiment of the present invention.

FIG. 3 is a schematic structural view of the pressing assembly and the microneedle module.

FIG. 4 is a flowchart of a display screen testing method provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In addition, the following descriptions of the various embodiments refer to the attached drawings to illustrate specific embodiments that the application can be used to implement. The directional terms mentioned in this application, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., only is to refer to the direction of the attached drawings. Therefore, the direction terms used are for better and clearer description and understanding of the present application, rather than indicating or implying that the referred device or element must have a specific orientation, and must have a specific orientation. construction and operation, therefore should not be construed as limiting the application.

In the description of this application, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection", "connection", and "set on..." should be understood in a broad sense, for example, it can be A fixed connection can also be a detachable connection or an integral connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal communication between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application in specific situations.

In addition, in the description of the present application, unless otherwise specified, "plurality" means two or more. If the term "process" appears in this specification, it not only refers to an independent process, but also includes in this term as long as it can realize the expected function of the process when it cannot be clearly distinguished from other processes. In addition, the numerical range represented by "-" in this specification means the range which includes the numerical value described before and after "-" as a minimum value and a maximum value, respectively. In the drawings, units with similar or identical structures are denoted by the same reference numerals.

Referring to Fig. 1 and Fig. 2, the display screen test fixture 100 provided by the embodiment of the present invention is used to fix the display screen sample 200, and the display screen test fixture 100 is electrically connected to the test equipment, so that the test equipment is electrically connected to the display screen sample 200, and the test The equipment tests the display effect of the display screen sample 200, such as judging the defective products of "dots, lines, and clusters" of the display screen alone. In this embodiment, the display screen testing tool 100 includes a base 10 , a positioning component 20 , a microneedle module 30 and a pressing component 40 . Specifically, the base 10 is the main supporting part of the display screen testing tool 100, and the positioning assembly 20, the microneedle assembly, and the pressing assembly 40 are all arranged on the base 10, and the base 10 is used to be fixed on a workbench or a desktop. In one embodiment, the base 10 can be a metal frame, so as to facilitate the installation of structures such as the positioning component 20 , the microneedle module 30 and the pressing component 40 .

Please continue to refer to FIG. 1 and FIG. 2, in this embodiment, the positioning assembly 20 is fixed on the base 10, the positioning assembly 20 is used to fix the display screen sample 200, and the microneedle module 30 is arranged on the base 10, the microneedle module 30 is electrically connected to the test equipment, and the pressing assembly 40 is movably connected to the base 10. The pressing assembly 40 is used to press and fasten the connector of the display screen sample 200 on the on the microneedle module 30 so that the test equipment is electrically connected to the display screen sample 200 . Specifically, the positioning assembly 20 is matched with the microneedle module 30, and the connector of the display screen sample 200 is pressed between the positioning assembly 20 and the microneedle module 30, so that the connector of the display screen sample 200 is fastened on the microneedle module 30. On the needle module 30 , the display screen sample 200 is electrically connected to the microneedle module 30 . It can be understood that the connector of the display screen sample 200 is a BTB connector, and the BTB connector is drawn from the first end of the display screen sample 200, and the microneedles on the microneedle module 30 are in contact with the contacts on the BTB connector, thereby The microneedle module 30 is electrically connected to the display screen sample 200 . In this embodiment, the microneedle module 30 and the positioning assembly 20 are fixed on the base 10 by means of screws or the like. When testing different types of display screen samples 200, it is only necessary to replace the positioning assembly 20 of different sizes and move the microneedle mold. The relative positions of the group 30 and the display screen sample 200 are sufficient.

The base 10 is also provided with a DB25 fast pair plug, which is led out from the microneedle module 30, and the DB25 fast pair plug is used to electrically connect the test equipment, so that the test equipment is electrically connected to the microneedle module 30, further , when the BTB connector is snapped onto the microneedle module 30 , the test equipment is electrically connected to the display screen sample 200 .

The display screen sample 200 is fixed on the positioning assembly 20, and the pressing assembly 40 presses the connector of the display screen sample 200, so that the connector of the display screen sample 200 is buckled with the microneedle module 30, that is, the microneedle module 30 is connected to the display screen. The electrical connection of the sample 200, so that the test equipment is electrically connected to the display screen sample 200, the operator can test the display screen sample 200 by operating the test equipment, and the buckling method of the connector of the microneedle module 30 and the display screen sample 200 is simple and easy The operation is easy to realize automatic control, multiple fastening and separation will not damage the connector, which improves the efficiency of the test and reduces the production cost.

Please refer to FIG. 1 and FIG. 3 , in this embodiment, the pressing assembly 40 includes a driving device 44 and a pressing head 42, the driving device 44 is arranged on the base 10, the pressing head 42 and the micro The needle modules 30 are arranged opposite to each other, and the driving device 44 is connected to the pressing head 42 to drive the pressing head 42 to move toward or away from the microneedle module 30 . In one embodiment, the size of the pressing head 42 is larger than the size of the BTB connector, so that the BTB connector is evenly stressed when the BTB connector is pressed, and the contacts on the BTB connector and the microneedle module 30 are uniform. contact to improve the electrical connection effect between the display screen sample 200 and the microneedle module 30 . In this embodiment, the driving device 44 is used to realize the linear motion of the pressing head 42. In one embodiment, the driving device 44 is an air cylinder, which can push the pressing head 42 to advance at a constant speed. In other embodiments, the driving device 44 It can also be a servo motor, and the pressing head 42 is pushed by the cooperation of the servo motor and the slide rail, and the sliding speed of the pressing head 42 is easy to control.

Please continue to refer to FIG. 1 and FIG. 2 , in this embodiment, the positioning assembly 20 includes a positioning die 22 and a pressing screen member 24, the positioning die 22 is fixed on the base 10, and the inner part of the positioning die 22 The cavity corresponds to the outer contour of the display screen sample 200, so that the display screen sample 200 is placed in the positioning mold 22, the pressing screen member 24 is movably connected to the base 10, and the pressing screen member 24 It is used to fix the display screen sample 200 in the positioning mold 22 . Specifically, the positioning mold 22 limits the degree of freedom of the display screen sample 200 on the XY plane, that is, limits the translation or rotation of the display screen sample 200 on the XY plane, and the pressing screen member 24 limits the degree of freedom of the display screen sample 200 in the Z direction, thereby The display screen sample 200 is confined within the positioning mold 22 . In one embodiment, the pressing screen member 24 is a plurality of pressing claw structures, and the display screen sample 200 is fixed from multiple positions of the display screen sample 200, for example, two pressing screen members 24 are fixed from diagonal corners of the display screen sample 200 to display Screen sample 200. In this embodiment, the screen pressing member 24 fixes the display screen sample 200 in the non-display area of the display screen sample 200 to prevent the screen pressing member 24 from blocking the display area of the display screen sample 200 and affecting the test effect. The positioning component 20 can ensure that after the display screen sample 200 is placed in place, the position of the display screen sample 200 is fixed during the testing process and will not be displaced due to vibration.

In this embodiment, the display screen testing tool 100 also includes a position sensor, the position sensor is arranged on the base 10, and the position sensor is used to sense whether the display screen sample 200 is placed on the Positioning assembly 20. Specifically, when the display screen sample 200 is placed on the positioning mold 22, after the position sensor senses the display screen sample 200, the pressing screen member 24 automatically presses and fixes the display screen sample 200 in the positioning mold 22, and at the same time, the driving device 44 drives the pressing head 42 to press down, so as to buckle the BTB connector on the microneedle module 30 . The position sensor improves the automation of the display test fixture 100 . In one embodiment, the position sensor is an infrared sensor or a Hall sensor or the like.

The display screen sample 200 is fixed on the positioning assembly 20, and the pressing assembly 40 presses the connector of the display screen sample 200, so that the connector of the display screen sample 200 is buckled with the microneedle module 30, that is, the microneedle module 30 is connected to the display screen. The electrical connection of the sample 200, so that the test equipment is electrically connected to the display screen sample 200, the operator can test the display screen sample 200 by operating the test equipment, and the buckling method of the connector of the microneedle module 30 and the display screen sample 200 is simple and easy The operation is easy to realize automatic control, multiple fastening and separation will not damage the connector, which improves the efficiency of the test and reduces the production cost.

Please refer to FIG. 4 , the embodiment of the present invention also provides a display screen test method, which is used to test the display effect of the display screen sample 200 , for example, to determine defective products such as "dots, lines, and lumps" of a single display screen. The testing method of the display screen provided in this embodiment is realized by the testing equipment and the display screen testing tool 100 provided in the embodiment of the present invention. The display screen testing tool 100 includes a base 10, a positioning assembly 20, a microneedle module 30 and a component 40 , the positioning component 20 is fixed on the base 10 , the microneedle module 30 is disposed on the base 10 , and the pressing component 40 is movably connected to the base 10 . Fig. 4 shows the flow chart of the test method of the display screen, specifically, the test method of the display screen includes:

S101. Electrically connect the microneedle assembly to a testing device.

In this embodiment, the base 10 is provided with a DB25 quick pairing plug, and the DB25 quick pairing plug is led out from the microneedle module 30, and the microneedle assembly is electrically connected to the test equipment through the DB25 quick pairing plug.

In one embodiment, after the microneedle assembly is electrically connected to the testing equipment, click on the testing software of the testing equipment to automatically test.

S102 , fixing the display screen sample 200 in the positioning assembly 20 , and placing the connector of the display screen sample 200 on the microneedle module 30 .

In this embodiment, the display screen sample 200 is wiped clean with a dust-free cloth sticky with wine and grains to ensure that there is no dust, fingerprints, etc. The quasi-microneedle module 30 places the display screen sample 200 in the positioning assembly 20 .

In this embodiment, the pressing assembly 40 includes a driving device 44 and a pressing head 42, the driving device 44 is arranged on the base 10, and the pressing head 42 is arranged opposite to the microneedle module 30, so The display screen testing tool 100 also includes a position sensor, the position sensor is arranged on the base 10, and the "pressing component 40 fastens the connector of the display screen sample 200 to the microneedle Module 30" includes:

The position sensor senses whether the display screen sample 200 is placed on the positioning component 20;

When the position sensor senses that the display screen sample 200 is placed on the positioning assembly 20, the driving device 44 drives the pressing head 42 to move towards the direction close to the microneedle module 30 to snap together The connector of the display screen sample 200 is on the microneedle module 30 .

S103 , the pressing assembly 40 snaps the connector of the display screen sample 200 onto the microneedle module 30 .

In this embodiment, the positioning assembly 20 includes a positioning mold 22 and a pressing screen member 24, the positioning mold 22 is fixed on the base 10, and the inner cavity of the positioning mold 22 is connected to the display screen sample 200. Corresponding to the outer contour, the pressure screen member 24 is movably connected to the base 10, and the "fixing the display screen sample 200 in the positioning assembly 20" includes:

The position sensor senses whether the display screen sample 200 is placed on the positioning mold 22;

When the position sensor senses that the display screen sample 200 is placed on the positioning mold 22,

The screen pressing member 24 presses down and fixes the display screen sample 200 in the positioning mold 22 .

S104. The test device inputs a test signal to test the display screen sample 200 .

In one embodiment, after the microneedle module 30 is electrically connected to the BTB connector, the test equipment starts the display screen test tool 100 and at the same time starts the display screen sample 200 . The test equipment sends MMI instructions one by one to the display test tool 100, and the main board of the display test tool 100 receives the instructions and switches the display screen from the "black, white, gray, red, green, blue" interface according to the preset command situation. At the same time, the equipment CCD camera installed directly above the tooling captures the black, white, gray, red, green, and blue interfaces displayed on the display screen sample 200, and sends the shooting results back to the test equipment for data analysis.

The display screen sample 200 is fixed on the positioning assembly 20, and the pressing assembly 40 presses the connector of the display screen sample 200, so that the connector of the display screen sample 200 is buckled with the microneedle module 30, that is, the microneedle module 30 is connected to the display screen. The electrical connection of the sample 200, so that the test equipment is electrically connected to the display screen sample 200, the operator can test the display screen sample 200 by operating the test equipment, and the buckling method of the connector of the microneedle module 30 and the display screen sample 200 is simple and easy The operation is easy to realize automatic control, multiple fastening and separation will not damage the connector, which improves the efficiency of the test and reduces the production cost.

The above disclosures are only several preferred embodiments of the present invention, and of course the scope of rights of the present invention cannot be limited by this. Those of ordinary skill in the art can understand all or part of the processes for realizing the above embodiments, and according to the rights of the present invention The equivalent changes required still belong to the scope covered by the invention.

Claims (10)

1. a kind of display screen test fixture, electrical connection test equipment is to test display screen sample, which is characterized in that including：

Pedestal；

Positioning component is fixed on the pedestal, and the positioning component is for fixing the display screen sample；

Micropin module is set on the pedestal, and the micropin module is electrically connected the test equipment；

Press component, is flexibly connected the pedestal, and the press component is used to press and fasten the connection of the display screen sample Device is on the micropin module, so that the test equipment is electrically connected the display screen sample.

2. display screen test fixture according to claim 1, which is characterized in that the press component include driving device with Press head, the driving device are set on the pedestal, and the press head is oppositely arranged with the micropin module, the driving Device connects the press head to drive the press head to be moved to the direction closer or far from the micropin module.

3. display screen test fixture according to claim 2, which is characterized in that the positioning component includes positioning mould and pressure Shield part, the positioning mould is fixed on the pedestal, and the inner cavity of the positioning mould is corresponding with the outer profile of display screen sample, The display screen sample to be positioned in the positioning mould, the pressure screen part is flexibly connected the pedestal, and the pressure screen part is used In the fixation display screen sample in the positioning mould.

4. display screen test fixture according to claim 3, which is characterized in that the pressure shields part in the display screen sample Non-display area fix the display screen sample.

5. display screen test fixture according to claim 2, which is characterized in that the driving device is cylinder.

6. the display screen test fixture according to claim 1 to 5 any one, which is characterized in that the display screen test Tooling further includes position sensor, and the position sensor is set on the pedestal, and the position sensor is for incuding institute State whether display screen sample is placed on the positioning component.

7. a kind of test method of display screen, which is characterized in that the test method of the display screen includes：

Display screen test fixture is provided, the display screen test fixture includes pedestal, positioning component, micropin module and pressing group Part, the positioning component are fixed on the pedestal, and the micropin module is set on the pedestal, the press component activity The pedestal is connected,

Microneedle component is electrically connected test equipment；

Display screen sample is fixed in the positioning component, the connector of the display screen sample is positioned over the micropin module On；

The press component fastens the connector of the display screen sample on the micropin module；

The test equipment input test signal tests the display screen sample.

8. the test method of display screen according to claim 7, which is characterized in that the press component includes driving device With press head, the driving device is set on the pedestal, and the press head is oppositely arranged with the micropin module, described aobvious Display screen test fixture further includes position sensor, and the position sensor is set on the pedestal, " the press component The connector of the display screen sample is fastened on the micropin module " include：

The position sensor incudes whether the display screen sample is placed on the positioning component；

When the position sensor, which incudes the display screen sample, to be placed on the positioning component, the driving device driving The press head is moved to the direction close to the micropin module, to fasten the connector of the display screen sample in the micropin On module.

9. the test method of display screen according to claim 8, which is characterized in that the positioning component include positioning mould and Pressure screen part, the positioning mould are fixed on the pedestal, the outer profile pair of the inner cavity of the positioning mould and the display screen sample It answers, the pressure screen part is flexibly connected the pedestal, and " display screen sample is fixed in the positioning component " includes：

The position sensor incudes whether the display screen sample is placed in the positioning mould；

When the position sensor, which incudes the display screen sample, to be placed in the positioning mould,

The pressure screen part pushes and fixes the display screen sample in the positioning mould.

10. the test method of the display screen according to claim 7 to 9 any one, which is characterized in that " the survey Examination equipment input test signal tests the display screen sample " include：

The test equipment controls the display screen sample and shows black, white, grey, red, green, blue interface；

Camera shoots black, white, grey, the red, green, blue interface that the display screen sample is shown；

Test equipment analyzes the display result of the display screen sample.