Liquid crystal display screen lighting fixture

Abstract

The utility model belongs to liquid crystal display production technical field, concretely relates to a kind of liquid crystal display lighting fixture, the fixture includes: base, at least one rack is provided on it;For carrying the load plate of liquid crystal display, it is hinged on base by connecting rod;Limiting rod, one end is hinged on connecting rod, the other end is provided with locking element;Wherein, the tooth slot of rack is shape adaptation with the locking element, the locking element inserts the tooth slot of different position, to adjust the inclination angle of the load plate relative to base.Make that detection personnel can observe display screen from multiple angles, to avoid the risk of missed detection that liquid crystal display lighting fixture cannot adjust the inclination angle of display screen relative to base.

Description

Technical Field

[0001] This utility model belongs to the field of liquid crystal display manufacturing technology, and in particular relates to a liquid crystal display lighting fixture. Background Technology

[0002] With the widespread application of LCD technology, the requirements for detecting internal foreign objects and assembly defects during the LCD screen production process are becoming increasingly stringent. To ensure the quality of LCD screens, random sampling inspection is necessary. This sampling inspection typically uses a lighting fixture as the inspection equipment. Traditional lighting fixtures often employ a rigid structure design. Once the screen is fixed to the fixture, the tilt angle of the screen relative to the base is not adjustable. The light reflection path of the screen at this fixed angle is limited, making it difficult to clearly expose internal foreign objects or faulty solder joints. Some operators compensate for this viewing angle defect by frequently adjusting their observation position. However, this method cannot provide a consistent and detailed adjustment of the viewing angle and easily causes visual fatigue, thus creating a risk of missed inspections.

[0003] Therefore, how to avoid the risk of missed detection caused by the inability to adjust the tilt angle of the LCD screen relative to the base in the LCD screen lighting fixture is a technical problem that urgently needs to be solved by those skilled in the art.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0005] This disclosure provides at least one liquid crystal display screen lighting fixture.

[0006] In a first aspect, embodiments of this disclosure provide a liquid crystal display screen lighting fixture, comprising:

[0007] The base has at least one rack on it;

[0008] The carrier plate used to support the LCD screen is positioned above the base;

[0009] The connecting rods, corresponding to the number of racks, are hinged at one end to the carrier plate and at the other end to the base;

[0010] The limiting rod has one end hinged to the connecting rod and the other end equipped with a locking element;

[0011] The toothed grooves of the rack are adapted to the shape of the locking member, and the locking member is inserted into the toothed grooves at different positions to adjust the tilt angle of the carrier plate relative to the base.

[0012] In one optional embodiment, the carrier plate is provided with a connector, and both the connector and the connecting rod are provided with threaded holes;

[0013] The carrier plate is hinged to the connecting rod by bolts, nuts, and threaded holes.

[0014] In one alternative embodiment, the base is provided with a hinge seat, and one end of the connecting rod is hinged to the base via the hinge seat.

[0015] In one alternative embodiment, the carrier plate is provided with crisscrossing light-shielding plates, and the two sides of the light-shielding plates are mounted on the carrier plate by a sliding mechanism.

[0016] In one optional embodiment, the sliding mechanism includes strip-shaped holes disposed on both sides of the light-shielding plate, with locking bolts slidably disposed within the strip-shaped holes, and...

[0017] The carrier plate is provided with a groove corresponding to the strip hole, and the groove has a thread.

[0018] In one optional embodiment, both the base and the rack are provided with threaded holes, and the rack is assembled to the base by screws; and,

[0019] One end of the locking member is provided with a screw, and the locking member is assembled onto the limiting rod by the screw.

[0020] Secondly, this disclosure also provides a liquid crystal display screen lighting fixture, comprising:

[0021] Base;

[0022] The carrier plate used to support the LCD screen is hinged to the base via a connecting mechanism;

[0023] The adjustment mechanism includes a rack mounted on the base and a locking assembly that is linked to the carrier plate;

[0024] The locking component engages with the toothed grooves at different positions of the rack to adjust the tilt angle of the carrier plate relative to the base.

[0025] In one alternative embodiment, the connecting mechanism includes a connecting rod, one end of which is hinged to the base and the other end of which is hinged to the carrier plate.

[0026] In one optional embodiment, the locking assembly includes a limiting rod, one end of which is hinged to a connecting rod, and the other end of which is provided with a locking element; and the locking element is adapted to the shape of the tooth groove.

[0027] The locking element is inserted into the toothed grooves at different positions to adjust the tilt angle of the carrier plate relative to the base.

[0028] In one optional embodiment, both the base and the rack are provided with threaded holes, and the rack is assembled onto the base by screws.

[0029] The beneficial effect of this utility model is that the LCD screen lighting fixture has a rack on the base, and the carrier plate is hinged to the base through a connecting rod. A limit rod is hinged on the connecting rod. By inserting the locking part on the limit rod into the tooth groove at different positions on the rack, the tilt angle of the display screen on the carrier plate relative to the base can be adjusted. This allows the inspector to observe the display screen from multiple angles, thereby avoiding the risk of missed inspection caused by the inability to adjust the tilt angle of the display screen relative to the base in the LCD screen lighting fixture.

[0030] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and drawings.

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 A perspective view of a liquid crystal display lamp fixture provided in an embodiment of this disclosure;

[0034] Figure 2 A rear view of a liquid crystal display lamp fixture provided in an embodiment of this disclosure;

[0035] Figure 3 This is an assembly diagram of the locking component of a liquid crystal display lamp fixture provided in an embodiment of the present disclosure.

[0036] In the picture:

[0037] 100, Base; 110, Hinge seat; 200, Rack; 210, Tooth groove; 220, Screw; 300, Carrier plate; 310, Connector; 320, Slide groove; 311, Threaded hole; 400, Connecting mechanism; 410, Connecting rod; 500, Locking assembly; 510, Limiting rod; 511, Locking element; 512, Screw; 600, Bolt; 700, Nut; 800, Sunshade plate; 810, Strip hole; 811, Locking bolt. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0039] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0040] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0041] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0042] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0043] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0044] Research has revealed the following drawbacks of existing technologies: traditional fixtures often employ rigid structural designs, and their tilt angle relative to the base is not adjustable. The light reflection path of the display screen is limited at a fixed angle, making it difficult to clearly expose internal foreign objects or faulty circuit soldering. Some operators compensate for the viewing angle deficiency by frequently adjusting their observation position. However, this method cannot regularly and finely adjust the viewing angle and is prone to causing visual fatigue, thus creating the risk of missed detections.

[0045] Based on the above research, this disclosure provides a liquid crystal display lamp fixture, which hinges a carrier plate to a base and limits the carrier plate by means of a limiting rod and a rack. By adjusting the positional relationship between the locking member on the limiting rod and the tooth groove on the rack, the tilt angle of the display screen on the carrier plate relative to the base can be changed.

[0046] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0047] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0048] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0049] See Figure 1This disclosure provides a liquid crystal display screen lighting fixture, including: a base 100 on which at least one rack 200 is disposed. A carrier plate 300 for supporting the liquid crystal display screen is disposed above the base 100, and the carrier plate 300 is hinged to the base 100 via a connecting rod 410. The number of racks 200 and connecting rods 410 is the same. If there is one rack 200 and one connecting rod 410, both racks 200 and connecting rods 410 are located in the middle of the base 100; if there are two racks 200 and two connecting rods 410, they are symmetrically arranged on both sides of the base 100 to keep the sides of the carrier plate 300 balanced.

[0050] See also Figure 1 The connecting rod 410 is hinged to one end of the limiting rod 510, and the other end of the limiting rod 510 is provided with a locking member 511. The toothed groove 210 of the rack 200 is adapted to the shape of the locking member 511. The locking member 511 is inserted into the toothed groove 210 at different positions, which can adjust the tilt angle of the carrier plate 300 relative to the base 100. This allows the inspector to observe the display screen on the carrier plate 300 from multiple angles, thereby avoiding the risk of missed inspection caused by the inability to adjust the tilt angle of the display screen relative to the base 100 in the LCD display lamp fixture.

[0051] See Figure 2 In some embodiments, a connector 310 is provided on the carrier plate 300, and both the connector 310 and the connecting rod 410 have threaded holes 311. The carrier plate 300 is hinged to the connecting rod 410 by bolts 600, nuts 700, and threaded holes 311. When the nut 700 is loosened, the friction between the connector 310 and the connecting rod 410 decreases, allowing the carrier plate 300 to rotate slightly around the hinge point, thereby enabling fine adjustment of the tilt angle of the carrier plate 300 relative to the base 100. Fine adjustment of the tilt angle allows the inspector to observe foreign objects or poor solder joints inside the LCD screen from the best viewing angle, reducing the risk of missed detections. Figure 2 To highlight the threaded hole 311 on the connector 310, the bolt 600 and nut 700 on the left side of the connector 310 are hidden and not displayed.

[0052] See Figure 1 In some embodiments, a hinge seat 110 is provided on the base 100, and one end of the connecting rod 410 is hinged to the base 100 through the hinge seat 110.

[0053] See also Figure 1In some embodiments, the carrier plate 300 is provided with crisscrossing light-shielding plates 800, and the two sides of the light-shielding plates 800 are mounted on the carrier plate 300 via a sliding mechanism. The sliding mechanism includes strip-shaped holes 810 provided on both sides of the light-shielding plates 800, with locking bolts 811 slidably disposed in the strip-shaped holes 810, and the carrier plate 300 is provided with a groove 320 corresponding to the strip-shaped holes 810, the groove 320 having threads. In the locked state, the locking bolts 811 extend into the grooves 320 to limit the position of the light-shielding plates 800. When the locking bolts 811 are loosened, the locking bolts 811 disengage from the grooves 320, at which point the position of the light-shielding plates 800 can be adjusted so that the light-shielding plates 800 and the carrier plate 300 can be linked and engaged. When the tilt angle of the carrier plate 300 relative to the base 100 changes, the position of the light shield 800 can be adjusted at the same time to avoid interference from external light, making it easier to observe foreign objects or poor soldering of circuits inside the display screen at this tilt angle.

[0054] See Figure 2 and Figure 3 In some embodiments, threaded holes 311 are provided on both the base 100 and the rack 200, and the rack 200 is assembled onto the base 100 by screws 220; and a screw 512 is provided at one end of the locking member 511, and the locking member 511 is assembled onto the limiting rod 510 by the screw 512. By loosening the screws 220 and the locking member 511, racks 200 with different tooth groove densities and locking members 511 that mate with the tooth grooves 210 can be replaced at any time. The same fixture can be adapted to different production line standards by changing the rack 200 and the locking member 511: in precision inspection scenarios that require fine adjustment of the tilt angle, the angle can be finely adjusted step by step by replacing the rack 200 with a small-pitch tooth groove 210; in scenarios that require rapid coarse adjustment, the adjustment steps can be reduced and efficiency improved by replacing the rack 200 with a large-pitch tooth groove 210.

[0055] See Figure 1 Some embodiments also provide a liquid crystal display screen lighting fixture, including: a base 100; a carrier plate 300 for supporting the liquid crystal display screen, which is hinged to the base 100 via a connecting mechanism 400; and an adjustment mechanism including a rack 200 disposed on the base 100 and a locking component 500 linked to the carrier plate 300; wherein the locking component 500 cooperates with the toothed grooves 210 at different positions of the rack 200 to adjust the tilt angle of the carrier plate 300 relative to the base 100.

[0056] See also Figure 1 In some embodiments, the connecting mechanism 400 includes a connecting rod 410, one end of which is hinged to the base 100 and the other end of which is hinged to the carrier plate 300.

[0057] See also Figure 1In some embodiments, the locking assembly 500 includes a limiting rod 510, one end of which is hinged to the connecting rod 410, and the other end is provided with a locking member 511; the locking member 511 is adapted to the shape of the toothed groove 210, and the locking member 511 is inserted into the toothed groove 210 at different positions to adjust the tilt angle of the carrier plate 300 relative to the base 100.

[0058] In summary, this LCD screen lighting fixture, by setting a rack 200 on the base 100, and hinged the carrier plate 300 to the base 100 via a connecting rod 410, with a limiting rod 510 hinged to the connecting rod 410, can adjust the tilt angle of the display screen on the carrier plate 300 relative to the base 100 by inserting the locking member 511 on the limiting rod 510 into the toothed grooves 210 at different positions on the rack 200. This allows the inspection personnel to observe the display screen from multiple angles, thereby avoiding the risk of missed inspections caused by the inability to adjust the tilt angle of the display screen relative to the base 100 in the LCD screen lighting fixture.

[0059] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0060] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0061] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0062] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0063] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A fixture for lighting a liquid crystal display screen, characterized in that, include: A base (100) on which at least one rack (200) is provided; A carrier plate (300) for supporting the liquid crystal display screen is disposed above the base (100); A connecting rod (410) corresponding to the number of racks (200) has one end hinged to the carrier plate (300) and the other end hinged to the base (100); The limiting rod (510) has one end hinged to the connecting rod (410) and the other end is provided with a locking element (511). The toothed groove (210) of the rack (200) is adapted to the shape of the locking member (511), and the locking member (511) is inserted into the toothed groove (210) at different positions to adjust the tilt angle of the carrier plate (300) relative to the base (100).

2. The liquid crystal display screen lighting fixture as described in claim 1, characterized in that, The carrier plate (300) is provided with a connector (310), and both the connector (310) and the connecting rod (410) are provided with threaded holes (311). The carrier plate (300) is hinged to the connecting rod (410) by bolts (600), nuts (700) and threaded holes (311).

3. The liquid crystal display screen lighting fixture as described in claim 1, characterized in that, A hinge seat (110) is provided on the base (100), and one end of the connecting rod (410) is hinged to the base (100) through the hinge seat (110).

4. The liquid crystal display screen lighting fixture as described in claim 1, characterized in that, The carrier plate (300) is provided with crisscrossing light-shielding plates (800), and the two sides of the light-shielding plates (800) are mounted on the carrier plate (300) by a sliding mechanism.

5. The liquid crystal display screen lighting fixture as described in claim 4, characterized in that, The sliding mechanism includes strip-shaped holes (810) on both sides of the light-shielding plate (800), and locking bolts (811) are slidably disposed within the strip-shaped holes (810). The carrier plate (300) is provided with a groove (320) corresponding to the strip hole (810), and the groove (320) has a thread.

6. The liquid crystal display screen lighting fixture as described in claim 1, characterized in that, Both the base (100) and the rack (200) are provided with threaded holes (311), and the rack (200) is assembled onto the base (100) by screws (220); and, One end of the locking member (511) is provided with a screw (512), and the locking member (511) is assembled on the limiting rod (510) by the screw (512).

7. A lighting fixture for a liquid crystal display screen, characterized in that, include: Base (100); The carrier plate (300) for supporting the liquid crystal display screen is hinged to the base (100) by a connecting mechanism (400); The adjustment mechanism includes a rack (200) disposed on the base (100) and a locking assembly (500) linked to the carrier plate (300). The locking component (500) engages with the toothed grooves (210) at different positions of the rack (200) to adjust the tilt angle of the carrier plate (300) relative to the base (100).

8. The liquid crystal display screen lighting fixture as described in claim 7, characterized in that, The connecting mechanism (400) includes a connecting rod (410), one end of which is hinged to the base (100) and the other end is hinged to the carrier plate (300).

9. The liquid crystal display screen lighting fixture as described in claim 7, characterized in that, The locking assembly (500) includes a limiting rod (510), one end of which is hinged to the connecting rod (410), and the other end is provided with a locking member (511); and the locking member (511) is adapted to the shape of the tooth groove (210); The locking member (511) is inserted into the toothed groove (210) at different positions to adjust the tilt angle of the carrier plate (300) relative to the base (100).

10. The liquid crystal display screen lighting fixture as described in claim 7, characterized in that, Both the base (100) and the rack (200) are provided with threaded holes (311), and the rack (200) is assembled on the base (100) by screws (220).

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