CN203705754U - Liquid crystal display panel detection device - Google Patents

Abstract

The utility model relates to the technical field of display device detection devices, and discloses a liquid crystal display panel detection device. The liquid crystal display panel detection device includes a frame; an upper polarizer arranged at the top of the frame; The liquid crystal display panel placement frame below the above-mentioned polarizer; the light transmission detection unit that is arranged on the frame and is located below the liquid crystal display panel placement frame, and the light transmission detection unit includes a backlight module and is arranged above the backlight module the lower polarizer. The beneficial effects of the utility model are: by placing the liquid crystal display panel on the liquid crystal display panel placement frame, and driving the liquid crystal display panel to rotate through the liquid crystal display panel placement frame, thereby avoiding the gap between the liquid crystal display panel and the contacting parts during detection. Relative movement occurs, which improves the safety of the liquid crystal display panel during detection.

Description

A liquid crystal display panel detection device

technical field

The utility model relates to the technical field of a display device detection device, in particular to a liquid crystal display panel detection device.

Background technique

Liquid crystal display is a commonly used flat-panel display at present, and thin film transistor liquid crystal display (ThinFilm Transistor Liquid Crystal Display, referred to as TFT-LCD) is the mainstream product in liquid crystal display.

With the popularization of liquid crystal display panels in fields such as mobile phones and tablet computers, miniaturization is one of the mainstream trends in the development of liquid crystal displays. With the reduction of panel size, in order to improve the efficiency of transportation and inspection, small sizes are generally packed and shipped in the form of Q-Panel. In order to find defects in the panel during the production process, it is necessary to conduct inspections before packing, including light transmission inspection and reflection inspection. Among them, the light transmission inspection uses the backlight to emit light, and through the rotation of the upper and lower polarizers, checks for poor visibility such as air bubbles, seal leakage, inconsistent colors, and foreign objects; the reflection inspection uses the reflection of the panel under the light to check Defective appearance such as damage, scratches, abnormal sealing glue, etc.

However, in the current panel inspection process, the light transmission inspection is done by stacking the LCD panel and the lower polarizer on the backlight, and the upper polarizer is manually rotated by personnel. The contact between the LCD panel and the workbench is easy to cause damage and scratches. Injuries; the reflective inspection is carried out under fluorescent lamps, which requires personnel to lift the LCD panel, which is not conducive to the operation of personnel, and the brightness of the light will affect the detection of defects, which may easily cause missed inspections.

Utility model content

The utility model provides a liquid crystal display panel detection device, which is used to improve the safety of the liquid crystal display panel during detection.

The utility model provides a liquid crystal display panel detection device, the liquid crystal display panel detection device comprises:

frame;

The upper polarizer arranged on the top of the frame;

A liquid crystal display panel placement frame that is rotatably connected with the frame and located below the upper polarizer;

A light transmission detection unit arranged on the frame and below the liquid crystal display panel placement frame, the light transmission detection unit includes a backlight module and a lower polarizer arranged above the backlight module.

In the above technical solution, by placing the liquid crystal display panel on the liquid crystal display panel placement frame, the liquid crystal display panel is driven to rotate by the liquid crystal display panel placement frame, thereby avoiding relative movement between the liquid crystal display panel and the contacting parts during detection , improving the safety of the liquid crystal display panel during detection.

Preferably, the detection device further includes a manipulator connected to the frame and driving the liquid crystal display panel placement frame to rotate. The stability of the liquid crystal display panel placement frame during rotation is improved by driving the liquid crystal display panel placement frame to rotate through the manipulator.

Preferably, the liquid crystal display panel placement frame includes two transparent support frames, and each transparent support frame is provided with two anti-skid pads. Adopting the transparent support frame prevents the support frame from covering the liquid crystal display panel, and improves the convenience of the liquid crystal display panel during detection.

Preferably, at least one of the two anti-skid pads on each transparent support frame is slidably fitted on the transparent support frame. The non-slip mat can slide to different positions to support LCD panels of different sizes.

Preferably, the anti-slip mat is a transparent anti-slip mat. The liquid crystal display panel is prevented from being covered by the supporting frame, and the convenience of the liquid crystal display panel is improved.

Preferably, the frame is provided with a transparent upper polarizer rack, and the upper polarizer is placed on the upper surface of the upper polarizer rack, or the upper polarizer is attached to the upper polarizer and placed the lower surface of the shelf. The upper polarizer is fixed by the upper polarizer holder,

Preferably, the detection device further includes an illuminating light arranged on the top of the frame and used for detecting the liquid crystal display panel. The reflection detection of the liquid crystal display panel is carried out through the set illuminating lamp.

Preferably, the illuminating lamp is connected to the frame through a bendable and shaped hose. The irradiating position of the illuminating lamp can be adjusted through the bendable shaping hose, so as to facilitate the detection of the liquid crystal display panel.

Preferably, the lighting lamp is a halogen lamp. The halogen lamp used has better irradiation effect and longer service life.

Description of drawings

Fig. 1 is the front view of the liquid crystal display panel detection device provided by the utility model embodiment;

Fig. 2 is a right view of the liquid crystal display panel detection device provided by the embodiment of the present invention;

Fig. 3 is a top view of the liquid crystal display panel detection device provided by the embodiment of the present invention;

Fig. 4 is a front view of a liquid crystal display panel detection device provided by another embodiment of the present invention.

Reference signs:

10-frame 20-upper polarizer shelf 21-upper polarizer

30-Liquid crystal display panel placement frame 31-Transparent support frame 32-Anti-slip mat

40-Light transmission detection unit 41-Backlight module 42-Lower polarizer

50-Lighting lamp 51-Bendable qualitative hose 60-Manipulator

Detailed ways

In order to improve the safety of the liquid crystal display panel during detection, the embodiment of the utility model provides a liquid crystal display panel detection device. In the technical solution of the utility model, the liquid crystal display panel is supported by a liquid crystal display The liquid crystal display panel rotates together, avoiding the relative movement between the liquid crystal display panel and other parts of the detection device during detection, thereby improving the scratches and bumps of the liquid crystal display panel during detection, and improving the performance of the liquid crystal display panel. Safety at the time of detection. In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail by taking non-limiting examples as examples below.

As shown in FIG. 1 , FIG. 2 and FIG. 3 , FIG. 1 , FIG. 2 and FIG. 3 respectively show a front view, a right view and a top view of the liquid crystal display panel inspection device provided by this embodiment.

The embodiment of the utility model provides a liquid crystal display panel detection device, the liquid crystal display panel detection device includes:

frame 10;

The upper polarizer 21 arranged on the top of the frame 10;

A liquid crystal display panel placement frame 30 that is rotatably connected with the frame 10 and located below the upper polarizer 21;

The light transmission detection unit 40 disposed on the frame 10 and below the liquid crystal display panel placement frame 30 , the light transmission detection unit 40 includes a backlight module 41 and a lower polarizer 42 disposed above the backlight module 41 .

When the liquid crystal display panel testing device provided by the above-mentioned embodiments is used for testing a liquid crystal display panel, the liquid crystal display panel is first fixed on the liquid crystal display panel placement frame 30, and then the liquid crystal display panel placement frame 30 is rotated so that the liquid crystal display panel is aligned with the upper polarized light. There is a certain angle between the sheet 21 and the lower polarizer 42, so as to facilitate the observation of defects on the liquid crystal display panel. By adopting the liquid crystal display panel placement frame 30 to drive the liquid crystal display panel to rotate, the liquid crystal display panel placement frame 30 in contact with the liquid crystal display panel moves together with the liquid crystal display panel, which prevents the liquid crystal display panel from appearing between the parts in contact with it when the liquid crystal display panel is rotating. The relative motion improves the situation of scratches and bumps on the liquid crystal display panel when it is rotated.

Specifically, in order to further improve the safety of the liquid crystal display panel when it is rotating, preferably, the detection device also includes a manipulator 60 that is connected with the frame 10 and drives the liquid crystal display panel placement frame 30 to rotate. The manipulator 60 It is connected on the frame 10 and can drive the liquid crystal display panel placement frame 30 to rotate. Specifically, the manipulator 60 includes a vertical vertical shaft, which is connected to the frame 10, and the vertical vertical shaft is connected to the liquid crystal display panel. The placement frame 30 is fixedly connected, and a runner is arranged on the top of the vertical shaft. When the liquid crystal display panel placement rack 30 needs to be rotated, the vertical shaft is rotated by rotating the wheel, and then the liquid crystal display panel placement rack 30 is driven to rotate. The liquid crystal display panel placement frame 30 is driven by the manipulator 60 to further improve the stability of the liquid crystal display panel placement frame 30 during rotation, thereby improving the safety of the liquid crystal display panel during detection.

The liquid crystal display panel placement frame 30 includes two transparent support frames 31 , and each transparent support frame 31 is provided with two anti-skid pads 32 . By adopting the transparent support frame 31 to support the liquid crystal display panel, so that the light can pass through the transparent support frame 31 and irradiate the liquid crystal display panel, so that the detection can be completed without moving the position of the liquid crystal display panel on the transparent support frame 31 In order to make the liquid crystal display panel rotate together with the transparent support frame 31 when it is placed on the transparent support frame 31, so as to avoid relative sliding between the two, two anti-skid pads 32 are arranged on each transparent support frame 31, The situation that the liquid crystal display panel is scratched or damaged during detection is further improved.

In order to adapt to the detection of liquid crystal display panels of different sizes, at least one of the two anti-slip pads 32 on each of the above-mentioned transparent support frames 31 is slidably assembled on the transparent support frame 31 . When the sizes of the detected liquid crystal display panels are different, by adjusting the positions of the anti-skid pads 32, the four anti-skid pads 32 can stably support the liquid crystal display panel, which improves the applicability of the liquid crystal display panel detection device.

Wherein the anti-slip pad 32 can be the anti-slip pad 32 of different materials, and the liquid crystal display panel in the prior art all adopts the liquid crystal display panel that comprises a plurality of small liquid crystal display panels to detect when detecting, and the anti-slip pad 32 is When the non-transparent anti-slip mat 32 is used, the liquid crystal display panel is supported in the gap between adjacent small liquid crystal display panels. When the anti-slip mat 32 is a transparent anti-slip mat 32, its setting position can be any position. Preferably, the anti-slip The pad 32 is a transparent non-slip pad 32, which facilitates the placement of the liquid crystal display panel and simplifies the difficulty of using the liquid crystal display panel detection device.

When fixing the upper polarizer 21 and the lower polarizer 42, the lower polarizer 42 can be placed directly above the backlight module 41, while the upper polarizer 21 needs to be placed on the transparent upper polarizer shelf 20 arranged on the frame 10. Fix, specifically, the upper polarizer 21 can be fixed on the upper polarizer placement frame 20 by different fixing methods, such as: the upper polarizer 21 is directly placed on the upper surface of the upper polarizer 21, and the upper polarizer 21 can be fixed on the upper surface of the upper polarizer 21 through a transparent upper polarizer. Place the frame 20 to support the upper polarizer 21, or, you can also use the upper polarizer 21 to be pasted on the lower surface of the upper polarizer frame 20, etc., preferably, the upper polarizer 21 is pasted on the upper polarizer frame 20. On the lower surface, the upper polarizer 21 arranged on the upper polarizer rack 20 can be protected by the upper polarizer rack 20, preventing the upper polarizer 21 from being scratched, and at the same time, preventing dust from directly falling on the upper polarizer 21 , affecting the cleanliness of the upper polarizer 21.

As shown in Figure 4, Figure 4 shows the structure of a liquid crystal display panel detection device provided by another embodiment of the present invention. In this embodiment, in addition to the structure of the above detection device, in order to further improve the liquid crystal display panel detection The adaptability of the device, the detection device also includes an illuminating lamp 50 arranged on the top of the frame 10 and used to detect the liquid crystal display panel, through which the illuminating lamp 50 is used to detect the reflection of the liquid crystal display panel, and when detecting, directly place the liquid crystal display panel On the liquid crystal display panel placement frame 30, the detection device can simultaneously perform light transmission detection and reflection detection on the liquid crystal display panel, which improves the applicability of the liquid crystal display panel detection device.

Specifically, the illuminating lamp 50 in the above embodiment is a halogen lamp, which has a better illumination effect and a longer service life. In order to further improve the effect of the illuminating lamp 50 in use, the illuminating lamp 50 is connected to the frame 10 through a bendable shaping hose 51, so that the illuminating lamp 50 can be bent to any direction, and when performing reflective inspection on the liquid crystal display panel, The liquid crystal display panel is avoided to be moved, and the illuminating lamp 50 can be moved by bending the flexible and shaped hose 51, thereby facilitating the reflection detection of the liquid crystal display panel.

Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and equivalent technologies thereof, the utility model is also intended to include these modifications and variations.

Claims (9)

1. a liquid crystal display panel testing device, is characterized in that, comprising:

Framework;

Be arranged at the upper polaroid on framework top;

Be rotationally connected and be positioned at the display panels rack of described upper polaroid below with described framework;

Be arranged at described framework and be positioned at the printing opacity detecting unit of described display panels rack below, described printing opacity detecting unit comprises backlight module and is arranged on the lower polaroid of backlight module top.

2. liquid crystal display panel testing device as claimed in claim 1, is characterized in that, also comprises with described framework and expresses the mechanical arm that connects and drive described display panels rack to rotate.

3. liquid crystal display panel testing device as claimed in claim 1, is characterized in that, described display panels rack comprises two transparent support frames, and on each transparent support frame, is provided with two slipmat.

4. liquid crystal display panel testing device as claimed in claim 3, is characterized in that, in two slipmat on described each transparent support frame, has a slipmat slidable fit at least on described transparent support frame.

5. liquid crystal display panel testing device as claimed in claim 4, is characterized in that, described slipmat is transparent slipmat.

6. liquid crystal display panel testing device as claimed in claim 1, it is characterized in that, on described framework, be provided with transparent upper polaroid rack, described upper polaroid is placed on the upper surface of described upper polaroid rack, or the lower surface of described upper polarizer sheet sticking polaroid rack on described.

7. the liquid crystal display panel testing device as described in claim 1～6 any one, is characterized in that, also comprises and is arranged at described framework top the illuminating lamp for detection of display panels.

8. liquid crystal display panel testing device as claimed in claim 7, is characterized in that, described illuminating lamp is connected by flexible sizing flexible pipe with described framework.

9. liquid crystal display panel testing device as claimed in claim 8, is characterized in that, described illuminating lamp is Halogen lamp LED.