CN215642137U - Liquid crystal display panel double-coordinate detection lamp box - Google Patents

Abstract

The utility model discloses a double-coordinate detection lamp box of a liquid crystal panel, which comprises a bottom plate, an optical diaphragm body and an LED lamp strip, wherein the LED lamp strip is arranged on the bottom plate, a middle frame is arranged around the bottom plate, and a fixing structure of the optical diaphragm is arranged in a manner of being matched with the length and width of the middle frame. Has the advantages that: because of the fixing structure, the optical diaphragm body is clamped by the inner glass and the outer glass, so that the optical diaphragm body is kept flat, the diaphragm is clamped by the two pieces of glass, dark spots and bright spots cannot appear at the supporting position of the thimble, and the diaphragm cannot be folded, thereby well ensuring the uniformity of light of the lamp box.

Description

Liquid crystal display panel double-coordinate detection lamp box

Technical Field

The utility model relates to the field of liquid crystal panel detection equipment, in particular to a liquid crystal panel double-coordinate detection lamp box.

Background

The liquid crystal panel is a material for determining the brightness, contrast, color and visual angle of the liquid crystal display, the price trend of the liquid crystal panel directly influences the price of the liquid crystal display, and the quality and the technology of the liquid crystal panel are related to the overall performance of the liquid crystal display. Whether the liquid crystal panel can achieve the 16.7M color of true color display means that the three color channels of R.G.B (red, green and blue) have the capability of physically displaying 256 gray levels. Many factors such as the yield, the quality, the price and the market trend of the lcd are related to the quality, the price and the market trend of the lcd, because about 80% of the cost of one lcd is concentrated on the panel.

The quality of a liquid crystal display needs to be watched firstly, because the quality of the panel directly influences the watching effect of pictures, and the liquid crystal television panel occupies more than half of the cost of the whole television and is a main factor influencing the manufacturing cost of the liquid crystal television, a good liquid crystal display needs to be selected firstly. The liquid crystal panel can determine very important parameters of the liquid crystal display such as brightness, contrast, color, visual angle and the like to a great extent. In the production process of the liquid crystal panel, the quality of the panel is generally required to be sampled and detected, and a detection lamp box is used during detection.

The detection lamp house among the prior art is outer glass on the top layer usually, and the glass inboard is the optics diaphragm, and the optics diaphragm supports with a plurality of tapering thimble that take, and owing to be that the thimble supports dark spot (thimble shadow) will appear like this, and the time has long will appear water ripple (optics diaphragm fold), bright spot (the place that the thimble supported for a long time can be with optics diaphragm wearing and tearing), and the bright degree of consistency of lamp house has just been influenced to the appearance of above three points. Secondly, the liquid crystal panel light box in the market only supports one coordinate, and only two light boxes can be manufactured by switching two coordinates at the same time, so that the liquid crystal panel is respectively detected on the two light boxes, and the cost is higher. Therefore, a liquid crystal panel dual coordinate inspection light box is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the technical defects and provides the liquid crystal panel double-coordinate detection lamp box which is simple in structure, strong in practicability, uniform in luminance and integrated in double coordinates.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the utility model provides a liquid crystal display panel double-coordinate detection lamp house, includes bottom plate, optics diaphragm body, LED lamp strip, and the installation sets up LED lamp strip on the bottom plate, and the bottom plate is equipped with the center all around for being equipped with the fixed knot structure of optics diaphragm with the matching of center length width size, and the fixed knot of optics diaphragm constructs including interior glass, outer glass, optics diaphragm body, interior glass places on the center, and outer glass sets up in the center outside, and the centre gripping sets up the optics diaphragm body between outer glass, the interior glass, and the fixed knot constructs the periphery and is equipped with the frame of L shape, and a side card of frame is at outer glass outside border, and another side laminating is in the center outside and screw connection.

Furthermore, the LED lamp strip comprises two setting modes of coordinates in different directions.

Furthermore, a plurality of thimble supports are arranged perpendicular to the bottom plate, and the other ends of the thimble supports are abutted to the inner glass.

Furthermore, the inner wall of the middle frame and the bottom plate are both provided with a reflecting sheet in a fitting manner.

Furthermore, a plurality of fans for heat dissipation are sequentially arranged inside the middle frame at intervals at the upper side and the lower side, heat dissipation holes are formed in the fan installation position of the middle frame, and air inlet holes are formed in the fan installation position of the outer frame.

Furthermore, a plurality of air exhaust holes are arranged on the middle frame and the outer frame on the left side and the right side in a penetrating way.

Furthermore, a flexible cushion pad is arranged between the periphery of the fixing structure and the outer frame.

Compared with the prior art, the utility model has the advantages that: the double-coordinate detection lamp box for the liquid crystal panel is provided with the fixing structure, the optical membrane body is clamped by the inner glass and the outer glass, so that the optical membrane body is kept flat, the membrane is clamped by the two pieces of glass, dark spots and bright spots cannot appear at the supporting position of the thimble, and the membrane cannot be folded, so that the light uniformity of the lamp box is well ensured; because LED lamp strip includes the coordinate setting mode of two kinds of differences, be favorable to carrying out the detection of different angle of illumination lamp strips to liquid crystal display panel, owing to be equipped with the fan and dispel the heat, be favorable to the cooling to LED lamp strip.

Drawings

Fig. 1 is a schematic top view of a dual-coordinate inspection light box of a liquid crystal panel according to the present invention.

FIG. 2 is a schematic sectional view A-A of FIG. 1 of a dual-coordinate testing lamp box for a liquid crystal panel according to the present invention.

Fig. 3 is a bottom view of a liquid crystal panel dual coordinate detection lamp box of the present invention.

Fig. 4 is an enlarged schematic view of the utility model at B in fig. 2.

Fig. 5 is an enlarged schematic view of the utility model at C in fig. 3.

Fig. 6 is an enlarged schematic view of the utility model at D in fig. 1.

As shown in the figure: 1. a base plate; 2. an optical film body; 3. an LED light bar; 4. a middle frame; 5. an inner glass; 6. an outer glass; 7. an outer frame; 8. supporting a thimble; 9. a fan; 10. heat dissipation holes; 11. an air inlet hole; 12. an air exhaust hole; 13. a cushion pad; 14. A reflective sheet.

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

The utility model provides a liquid crystal display panel double-coordinate detection lamp house, includes bottom plate 1, optics diaphragm body 2, LED lamp strip 3, and the installation sets up LED lamp strip 3 on the bottom plate 1, and bottom plate 1 is around being equipped with center 4, and the fixed knot who cooperatees with center 4 length and width size is equipped with the optics diaphragm constructs, and the fixed knot of optics diaphragm constructs including interior glass 5, outer glass 6, optics diaphragm body 2, interior glass 5 places on center 4, and outer glass 6 sets up in the center 4 outside, and the centre gripping sets up optics diaphragm body 2 between outer glass 6, the interior glass 5, and the fixed knot constructs the periphery and is equipped with frame 7 of L shape, and 7 side cards of frame are at 6 outside borders of outer glass, and another side laminating is in the center 4 outsides and screwed connection.

The LED lamp strip 3 comprises two setting modes of coordinates in different directions. And the inner wall of the middle frame 4 and the bottom plate 1 are both provided with a reflector plate 14 in a fitting manner. And a plurality of thimble supports 8 are arranged vertically to the bottom plate 1, and the other ends of the thimble supports 8 are abutted to the inner glass 5. The upper side and the lower side are sequentially provided with a plurality of fans 9 for heat dissipation at intervals inside the middle frame 4, heat dissipation holes 10 are formed in the installation positions of the fans 9 on the middle frame 4, and air inlet holes 11 are formed in the installation positions of the fans 9 on the outer frame 7. The left and right middle frames 4 and the outer frame 7 are provided with a plurality of air exhaust holes 12 in a penetrating way. A flexible buffer pad 13 is arranged between the periphery of the fixing structure and the outer frame 7.

The working principle is as follows: in the utility model, the inner wall of the middle frame 4 and the bottom plate 1 are both provided with the reflecting sheet 14, the bottom plate 1 is uniformly distributed with two LED lamp strips 3 with different coordinates on the upper side of the reflecting sheet 14, a fixing structure for fixing the optical film is arranged at the outer side of the middle frame 4, the length and the width of the fixing structure are matched with the middle frame 4, and is arranged on the middle frame 4, the fixed structure comprises an outer glass 6 and an inner glass 5, the optical film body 2 is clamped between the two layers of glass, the arrangement is favorable for keeping the flatness of the optical film body 2, the bottom plate 1 is also provided with a thimble support 8 which can keep the stable support of the middle part of the fixed structure, the periphery of the fixed structure is provided with an outer frame 7, the cross section of the outer frame 7 is L-shaped, one side edge of the fixing structure is clamped with the fixing structure, the other side edge is attached to the outer side of the middle frame 4 and is screwed and fixed by screws, when in detection, the liquid crystal panel is placed on the outer glass 6, and the switching of the LED light bars 3 with two coordinates is controlled respectively to detect the production quality of the liquid crystal panel; further, because the detection lamp box works for a long time, the LED lamp strip 3 generates more heat, the fan 9 is arranged inside the middle frame 4 on the upper side and the lower side, and the air exhaust holes 12 are formed in the left side and the right side, so that the heat can be taken away in the circulation inside the air flow.

The present invention and the embodiments thereof have been described above, and the description is not restrictive, and the embodiments shown in the detailed description are only a part of the embodiments of the present invention, not all embodiments, and the actual configuration is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (6)

1. A double-coordinate detection lamp box of a liquid crystal panel comprises a bottom plate (1), an optical diaphragm body (2) and an LED lamp strip (3), it is characterized in that an LED lamp strip (3) is arranged on a bottom plate (1), a middle frame (4) is arranged around the bottom plate (1), the fixing structure of the optical diaphragm is matched with the length and width of the middle frame (4), the fixing structure of the optical diaphragm comprises inner glass (5), outer glass (6) and an optical diaphragm body (2), the optical diaphragm fixing structure is characterized in that the inner glass (5) is placed on the middle frame (4), the outer glass (6) is arranged on the outer side of the middle frame (4), the optical diaphragm body (2) is clamped between the outer glass (6) and the inner glass (5), an L-shaped outer frame (7) is arranged on the periphery of the fixing structure, one side face of the outer frame (7) is clamped on the edge of the outer side of the outer glass (6), and the other side face of the outer frame (7) is attached to the outer side of the middle frame (4) and connected through screws; the LED lamp strip (3) comprises two setting modes of coordinates in different directions.

2. The bi-coordinate detecting lamp box of claim 1, wherein a plurality of pin supports (8) are provided perpendicular to the bottom plate (1), and the other ends of the pin supports (8) abut against the inner glass (5).

3. The liquid crystal panel double-coordinate detection lamp box of claim 1, wherein the inner wall of the middle frame (4) and the bottom plate (1) are respectively provided with a reflector (14) in an attaching way.

4. The bi-coordinate detecting lamp box of claim 1, wherein a plurality of heat dissipating fans (9) are sequentially arranged inside the middle frame (4) at intervals, the middle frame (4) has heat dissipating holes (10) at the locations where the fans (9) are installed, and the outer frame (7) has air inlet holes (11) at the locations where the fans (9) are installed.

5. The liquid crystal panel double-coordinate detecting lamp box of claim 4, characterized in that a plurality of air exhausting holes (12) are arranged through the middle frame (4) and the outer frame (7) at the left and right sides.

6. The liquid crystal panel bi-coordinate detection light box of claim 1, wherein a flexible buffer (13) is provided between the periphery of the fixing structure and the outer frame (7).

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