CN220795613U

CN220795613U - MiniLED backlight test fixture

Info

Publication number: CN220795613U
Application number: CN202322402385.1U
Authority: CN
Inventors: 张庆英; 庄东健
Original assignee: Shenzhen Hengsheng Optoelectronic Technology Co ltd
Current assignee: Shenzhen Hengsheng Optoelectronic Technology Co ltd
Priority date: 2023-09-05
Filing date: 2023-09-05
Publication date: 2024-04-16
Anticipated expiration: 2033-09-05

Abstract

The utility model discloses a MiniLED backlight test fixture, which comprises a base and a detection plate on the top side of the base; the top side of the base is provided with a support plate, the inner side wall of the support plate is sleeved with an adjusting frame in a sliding manner, the top side of the support plate is provided with a toothed roller, the outer wall of the support plate is fixedly provided with a micro motor for coaxially driving the toothed roller, and the back side of the adjusting frame is fixedly provided with a toothed seat meshed with the toothed roller; two groups of probe grooves with opposite positions are formed in the bottom surface of the detection plate, and movable probes are sleeved in the probe grooves in a sliding manner; this MiniLED test fixture that is shaded through setting up of probe groove and movable probe on the base topside pick-up plate bottom surface, when movable probe moved in probe groove inboard, can be annular expansion type and remove in the bottom surface of pick-up plate, and movable probe can carry out repeated detection many times to the testing point position on the board that is shaded simultaneously, guarantees the accuracy of detection.

Description

MiniLED backlight test fixture

Technical Field

The utility model relates to the technical field of MiniLED backlight spot testing, in particular to a MiniLED backlight testing jig.

Background

With the rapid development of Mini LED display technology, the Mini LED display product is applied to the commercial fields of ultra-large screen high-definition display, such as monitoring command, high-definition performance, high-end cinema, medical diagnosis, advertisement display, conference, office display, virtual reality and the like; LED backlight means that LEDs (light emitting diodes) are used as backlight sources for liquid crystal display panels. Compared with the traditional CCFL (cold cathode tube) backlight source, the LED has the characteristics of low power consumption, low heat productivity, high brightness, long service life and the like, and is hopeful to thoroughly replace the traditional backlight system in recent years. The LED backlight may enhance the color appearance of the LCD display. The LED light is generated by three individual LEDs to provide a spectrum that matches the color spectrum of the LCD pixel color filter itself;

through retrieval, in the application book with the patent application number of CN202221607760.5, a fixture for MiniLED backlight lighting test is disclosed, and the fixture comprises a fixed base, wherein first screw rods are arranged on two sides of the top of the fixed base, two sliding blocks are sleeved on the outer sides of two ends of the first screw rods, clamping plates are arranged on the tops of the two sliding blocks at the same end, a backlight plate is arranged between the two clamping plates, second screw rods are arranged on the outer walls of two sides of the fixed base, a fixing frame is sleeved on the outer sides of the two second screw rods, and movable probes are arranged on two sides of the top of the inner side of the fixing frame; above-mentioned application file is through setting up corresponding spacing subassembly and is carried out the centre gripping to the back of the body board, utilizes two sets of movable probes to realize simultaneously that detect in a poor light, but two sets of movable probes need actuating mechanism drive its outside of being in a poor light and remove to can only carry out a set of detection, can not detect same backplate position many times, probably have the detection blind area, influence the testing result, in addition, current back of the body board and the interval of detecting probes are invariable, are difficult to carry out nimble regulation to its interval according to the demand.

Therefore, we propose a MiniLED backlight test fixture.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a MiniLED backlight test fixture, which solves the problems that the single backlight spot detection result of the existing device is inaccurate and a detection blind area possibly exists.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: a MiniLED backlight test fixture comprises a base and a detection plate on the top side of the base;

the top side of the base is provided with a support plate, the inner side wall of the support plate is sleeved with an adjusting frame in a sliding manner, the top side of the support plate is provided with a toothed roller, the outer wall of the support plate is fixedly provided with a micro motor for coaxially driving the toothed roller, and the back side of the adjusting frame is fixedly provided with a toothed seat meshed with the toothed roller;

two groups of probe grooves with opposite positions are formed in the bottom surface of the detection plate, a movable probe is sleeved in the probe groove in a sliding mode, a directional driving motor for driving the movable probe is arranged on the inner side of the detection plate, and a PCB (printed Circuit Board) for specification and control of a path of the directional driving motor is further arranged in the detection plate.

Preferably, the top surface of the base is provided with slotted sliding grooves on two sides, and the bottom of the support plate is fixedly provided with a sliding block which is matched with the specifications of the sliding grooves and is in a T shape.

Preferably, the outer wall of the base is fixedly provided with a side plate, and the inner wall of the side plate is fixedly provided with an electric telescopic rod of which the outer end of the output shaft is fixedly connected to the outer wall of the support plate.

Preferably, the side wall of the base is provided with a detection plate through a telescopic sleeve plate, and the telescopic sleeve plate consists of a plate sleeve, a vertical plate sleeved in the plate sleeve in a sliding manner and a positioning bolt.

Preferably, the probe groove is a vortex-shaped wire groove, and the detection range of the movable probe is expanded in a bucket shape from top to bottom.

Preferably, the adjusting frames are L-shaped plates, and backlight plates are clamped on the front and rear groups of adjusting frames.

The utility model provides a MiniLED backlight test fixture. The beneficial effects are as follows:

1. according to the MiniLED backlight test fixture, through the arrangement of the probe groove and the movable probe on the bottom surface of the detection plate on the top side of the base, when the movable probe moves at the inner side of the probe groove, the movable probe can move at the bottom surface of the detection plate in a ring-shaped expansion mode, and meanwhile, the movable probe can repeatedly detect detection points on the backlight plate for a plurality of times, so that the detection accuracy is ensured, and the problems that the single backlight point detection result of the traditional device is inaccurate and a detection blind area possibly exists are solved;

2. this MiniLED test fixture that is shaded through the setting of base topside extension board, can be through two sets of alignment jig reverse regulation of electric telescopic handle drive, carries out spacing clamp to the not unidimensional backlight, simultaneously through the setting of micro motor and fluted roller, can adjust the height of alignment jig and backlight according to the detection demand, has solved the problem that current device is difficult to adjust the interval between backlight and the activity probe according to the demand.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the base of the present utility model;

FIG. 3 is a schematic view of the structure of the support plate of the present utility model;

FIG. 4 is a schematic diagram of the structure of the detecting plate of the present utility model.

In the figure: 1. a base; 2. a detection plate; 3. a side plate; 4. a support plate; 5. an adjusting frame; 6. a chute; 7. an electric telescopic rod; 8. a slide block; 9. a tooth roller; 10. a micro motor; 11. a tooth holder; 12. a probe groove; 13. a movable probe.

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 it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the embodiment of the present utility model provides a technical solution: a MiniLED backlight test fixture comprises a base 1 and a detection plate 2 on the top side of the base;

the top side of the base 1 is provided with a support plate 4, the inner side wall of the support plate 4 is sleeved with an adjusting frame 5 in a sliding manner, the top side of the support plate 4 is provided with a toothed roller 9, the outer wall of the support plate 4 is fixedly provided with a micro motor 10 which coaxially drives the toothed roller 9, and the back side of the adjusting frame 5 is fixedly provided with a toothed seat 11 which is meshed with the toothed roller 9;

two groups of probe grooves 12 with opposite positions are formed in the bottom surface of the detection plate 2, a movable probe 13 is sleeved in the probe groove 12 in a sliding manner, a directional driving motor for driving the movable probe 13 is arranged on the inner side of the detection plate 2, and a PCB (printed Circuit Board) for specification and control of a path of the directional driving motor is also arranged in the detection plate 2;

in this embodiment, it should be noted that, by setting the probe groove 12 and the movable probe 13 on the bottom surface of the detection plate 2 on the top side of the base 1, when the movable probe 13 moves inside the probe groove 12, it can move on the bottom surface of the detection plate 2 in a ring-shaped expansion manner, and at the same time, the movable probe 13 can repeatedly detect the detection point on the backlight plate for multiple times, so as to ensure the detection accuracy, and solve the problems of inaccurate single backlight point detection result and possible detection blind areas of the existing device;

secondly, this MiniLED test fixture that is shaded through the setting of base 1 topside extension board 4, can carry out spacing clamp through two sets of alignment jig 5 reverse regulation of electric telescopic handle 7 drive to the not unidimensional back light plate, simultaneously through the setting of micro motor 10 and fluted roller 9, can adjust the height of alignment jig 5 and back light plate according to the detection demand, has solved the problem that current device is difficult to adjust the interval between back light plate and the movable probe 13 according to the demand.

In the embodiment, it should be noted that, the top surface of the base 1 is provided with a slotted chute 6 on two sides, and the bottom of the support plate 4 is fixedly provided with a T-shaped slide block 8 which is matched with the specification of the chute 6;

the sliding groove 6 and the sliding block 8 can increase the stability of the support plate 4 during sliding.

In this embodiment, it should be noted that, a side plate 3 is fixedly installed on an outer wall of the base 1, and an electric telescopic rod 7 whose outer end of an output shaft is fixedly connected to an outer wall of the support plate 4 is fixedly installed on an inner wall of the side plate 3;

the distance between the two groups of support plates 4 and the adjusting frame 5 can be adjusted by the arrangement of the electric telescopic rod 7 as a driving source, so that backlight plates with different specifications can be clamped and limited correspondingly.

In the embodiment, it should be noted that, the side wall of the base 1 is equipped with a detection plate 2 through a telescopic sleeve plate, and the telescopic sleeve plate consists of a plate sleeve, a vertical plate sleeved in the plate sleeve in a sliding way and a positioning bolt;

wherein, the setting of flexible sleeve board is convenient for pull up pick-up plate 2 when placing the backplate to be convenient for carry out corresponding placing to the backlight.

In this embodiment, it should be noted that the probe groove 12 is a vortex-shaped groove, and the detection range of the movable probe 13 is widened from top to bottom in a bucket shape.

In this embodiment, it should be noted that the adjusting frame 5 is an L-shaped plate, and the backlight plate is clamped between the front and rear groups of adjusting frames 5.

The working principle and the using flow of the utility model are as follows: when the device is required to work, the electric telescopic rod 7 is opened to adjust the distance between the two groups of support plates 4 and the adjusting frames 5, then the micro motor 10 is opened to drive the toothed roller 9 to rotate, the adjusting frames 5 are synchronously driven to move up and down, the backlight plate is placed between the two groups of adjusting frames 5 to be correspondingly clamped and limited, finally the directional driving motor on the inner side of the detection plate 2 is opened to drive the movable probe 13 to move in the probe groove 12, repeated detection is carried out on the backlight point on the bottom side backlight plate for multiple times, and the detection effect is ensured.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. MiniLED test fixture in a poor light, its characterized in that: comprises a base (1) and a detection plate (2) on the top side of the base;

the top side of the base (1) is provided with a support plate (4), the inner side wall of the support plate (4) is sleeved with an adjusting frame (5) in a sliding manner, the top side of the support plate (4) is provided with a toothed roller (9), the outer wall of the support plate (4) is fixedly provided with a micro motor (10) for coaxially driving the toothed roller (9), and the back side of the adjusting frame (5) is fixedly provided with a toothed seat (11) meshed with the toothed roller (9);

two groups of probe grooves (12) with opposite positions are formed in the bottom surface of the detection plate (2), a movable probe (13) is sleeved in the probe grooves (12) in a sliding mode, a directional driving motor for driving the movable probe (13) is arranged on the inner side of the detection plate (2), and a PCB (printed circuit board) for specification and control of a path of the directional driving motor is further arranged in the detection plate (2).

2. The MiniLED backlight test fixture of claim 1, wherein: the top surface of the base (1) is provided with slotted sliding grooves (6) on two sides, and the bottom of the support plate (4) is fixedly provided with a sliding block (8) which is matched with the sliding grooves (6) in specification and is in a T shape.

3. The MiniLED backlight test fixture of claim 1, wherein: the electric telescopic rod is characterized in that a side plate (3) is fixedly arranged on the outer wall of the base (1), and an electric telescopic rod (7) with the outer end of an output shaft fixedly connected to the outer wall of the support plate (4) is fixedly arranged on the inner wall of the side plate (3).

4. The MiniLED backlight test fixture of claim 1, wherein: the lateral wall of base (1) is equipped with pick-up plate (2) through flexible sleeve board, flexible sleeve board comprises board cover, riser and positioning bolt that the slip cover is in wherein.

5. The MiniLED backlight test fixture of claim 1, wherein: the probe groove (12) is a vortex-shaped wire groove, and the detection range of the movable probe (13) is expanded in a bucket shape from top to bottom.

6. The MiniLED backlight test fixture of claim 1, wherein: the adjusting frames (5) are L-shaped plates, and backlight plates are clamped on the front and rear groups of adjusting frames (5).