LED adjustable backlight verification equipment
By designing an adjustable LED backlight verification equipment, the problems of high evaluation cost, long cycle and low efficiency caused by the fixed distance between LED strips in the prior art are solved, and the LED arrangement is flexible to avoid obscured corners and dark bands, reducing the number of design and production times, and improving evaluation efficiency.
Patent Information
- Application Number
- CN202421489864.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The distance between the LED strips of the existing backlight modules is fixed, which makes it impossible to share the strips of different models. The problems of dark corners and dark bands are prone to occur during evaluation of the new models, resulting in the need of multiple adjustments to the design and production of the light strips, wasting resources, increasing costs and development cycles.
Design an LED adjustable backlight verification equipment. By setting adjustable LEDs on the DC line, different numbers and spacings of LED combinations are allowed to display the light emitted by the LED using reflective paper, diffusion plate, diaphragm and liquid crystal panels, thereby verifying the light effect of different configurations and adjusting the arrangement of the LEDs according to the results.
By adjusting the spacing and quantity of LEDs, the problems of dizzy angles and dark belts can be effectively avoided, the number of times of light strip design and production, the cost and development cycle can be reduced, and the evaluation efficiency can be improved.
Smart Images
Figure CN223022301U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of backlight R & D verification, in particular to an LED adjustable backlight verification device. Background Technique
[0002] At present, the distance between each LED of the light bar used in the backlight module is fixed, and the light bars of different models cannot be shared. Therefore, when evaluating a new model, only approximate evaluation can be carried out according to similar models. Such an evaluation method may have problems such as dark corners and dark bands. When it is necessary to adjust the number of LEDs or the distance between LEDs during actual production, it is necessary to re - design and manufacture the light bar, resulting in waste of resources, cost and development cycle. Content of the Utility Model
[0003] The utility model provides an LED adjustable backlight verification device to solve the technical problems of high evaluation cost, long cycle and low efficiency in the evaluation of new models in the prior art.
[0004] To solve the above problems, an LED adjustable backlight verification device provided by the utility model adopts the following technical scheme:
[0005] An LED adjustable backlight verification device includes a base. An installation groove is provided on the base. At the notch of the installation groove, a reflective paper, a diffusion plate, a film sheet and a liquid crystal panel are sequentially arranged from inside to outside. At least two DC lines arranged at intervals in the left - right direction are provided in the installation groove. Each DC line includes an anode end and a cathode end arranged at intervals in the left - right direction, and both the anode end and the cathode end extend in the front - back direction. LEDs are arranged between the anode end and the cathode end of each DC line. A plurality of LEDs are provided and are arranged at adjustable positions between the anode end and the cathode end of the DC line. The anode of the LED is electrically connected to the anode end, and the cathode of the LED is electrically connected to the cathode end.
[0006] The beneficial effect is: when the LED adjustable backlight verification equipment of the utility model is used, firstly, according to the different types of light strips required, LEDs of different numbers and different spacings are placed between the anode end and the cathode end of the DC circuit, and the anode of the LED is electrically connected to the anode end, and the cathode of the LED is electrically connected to the cathode end, so as to power the LED, and then the reflective paper, the diffusion plate, the diaphragm and the liquid crystal panel are arranged in the notch position of the installation groove from the inside to the outside, and then the power can be turned on and the liquid crystal panel can be observed to observe the performance of the light strip; and by adjusting the spacing between the LEDs, the arrangement of the LEDs with the best effect and the lowest cost can be obtained. When the LED adjustable backlight verification equipment of the utility model is used, LEDs of different spacings and numbers are set between the anode end and the cathode end to verify the effect of the light emitted by the LEDs with different spacings and numbers, so as to make the light strip according to the verification results, so as to avoid the need for multiple designs and productions of the light strips actually made, thereby reducing costs, while reducing the verification cycle and improving efficiency.
[0007] Furthermore, a plurality of mounting rods extending in the front-to-back direction are provided in the mounting groove, the mounting rods correspond one-to-one to the DC lines and an open groove is provided on the mounting rods, the open groove extends in the front-to-back direction, the anode terminal and the cathode terminal are provided in the open groove, and the LED is supported on the upper end surface of the mounting rod at the notch of the open groove.
[0008] Beneficial effect: It ensures that the LEDs on the mounting rod are in the same straight line, thereby improving the accuracy of the verification result.
[0009] Furthermore, each LED is provided with a lens, and the mounting rod is provided with at least one pair of sliding grooves, the two pairs of sliding grooves are symmetrically arranged on the left and right sides of the open groove, and the sliding grooves are adapted to the column feet of the lens on the LED.
[0010] Beneficial effect: The stability of the LED when it is mounted on the mounting pole is improved to prevent the LED from tilting.
[0011] Furthermore, two pairs of sliding grooves are provided on the mounting rod.
[0012] Beneficial effect: The applicable scope is improved, so that the utility model can be applicable to lenses with different numbers of column feet.
[0013] Furthermore, the open groove is a T-shaped groove and includes two upper supporting tables and one lower supporting table, and copper-plated holes extending in the front-to-back direction are provided on the mounting rods on the left and right sides of the open groove; the anode terminal includes an anode copper attached on one of the upper supporting tables and an anode wire inserted into the copper-plated hole on the corresponding side, and the anode copper attached and the anode wire are electrically connected; the cathode terminal includes a cathode copper attached on the other upper supporting table and a cathode wire inserted into the copper-plated hole on the corresponding side, and the cathode copper attached and the cathode wire are electrically connected.
[0014] Beneficial effects: The LED only needs to be placed on the open slot, which facilitates the movement of the LED on the mounting rod, is convenient for adjustment, and thus improves efficiency.
[0015] Furthermore, a heat dissipation aluminum foil is provided at the lower end of the mounting rod.
[0016] Beneficial effects: The mounting rod dissipates heat to prevent damage to the DC circuit caused by excessive temperature. Description of the Drawings
[0017] By referring to the accompanying drawings and reading the following detailed description, the above and other objects, features, and advantages of the exemplary embodiments of the present utility model will become readily understandable. In the drawings, several embodiments of the present utility model are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:
[0018] Figure 1 is a schematic diagram of the mechanism of an LED adjustable backlight verification device of the present utility model;
[0019] Figure 2 is a schematic diagram of the assembly of the mounting rod and the LED of an LED adjustable backlight verification device of the present utility model;
[0020] Figure 3 is Figure 2 a cross-sectional view of;
[0021] Figure 4 is Figure 2 an enlarged schematic view of part A in;
[0022] Description of the Reference Numerals in the Drawings:
[0023] 1, base; 2, mounting slot; 3, LED; 4, mounting rod; 5, open slot; 6, sliding slot; 7, upper support surface; 8, lower support surface; 9, through-hole for copper deposition; 10, copper deposition on the anode; 11, copper deposition on the cathode; 12, heat dissipation aluminum foil; 13, column foot; 14, lens. Detailed Embodiments
[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Those skilled in the art should understand that the following described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present utility model.
[0025] The quantity of any element in the drawings is for illustration rather than limitation, and any naming is only for distinction and does not have any limiting meaning.
[0026] Reference will now be made in detail to the principles and spirit of the present utility model with reference to several representative embodiments thereof.
[0027] Embodiment 1 of an LED adjustable backlight verification device provided by the present utility model:
[0028] As Figures 1 to 4 shown, an LED adjustable backlight verification device of the present utility model includes a base 1, a mounting rod 4 provided on the base 1, and a DC circuit provided on the mounting rod 4.
[0029] An installation groove 2 is provided on the base 1. A reflective paper, a diffuser plate, a film sheet, and a liquid crystal panel are sequentially provided from the inside to the outside at the notch of the installation groove 2 to display the light emitted by the LED 3 for observation.
[0030] Five mounting rods 4 all extending in the front-rear direction are provided in the installation groove 2, and the five mounting rods 4 are arranged at equal intervals in the left-right direction. As Figure 2 、 Figure 3 and Figure 4 shown, an open circuit groove 5 and a sliding groove 6 are provided on each mounting rod 4. There is one open circuit groove 5 and it extends in the front-rear direction. The open circuit groove 5 is a T-shaped groove and includes two upper support platforms 7 and one lower support platform 8. Plated through holes 9 extending in the front-rear direction are provided on the mounting rods 4 on both left and right sides of the open circuit groove 5.
[0031] A heat dissipation aluminum foil 12 is provided at the lower end of each mounting rod 4, and the heat dissipation aluminum foil 12 is fixed on the bottom surface of the base 1.
[0032] There are two pairs of sliding grooves 6. The two sliding grooves 6 in a pair are respectively disposed on the left and right sides of the open circuit groove 5 and both extend in the front-rear direction. The sliding grooves 6 are adapted to the pins 13 of the lens 14 on the LED 3, so as to support the LED 3 on the mounting rod 4 and at the same time facilitate the LED 3 to slide in the front-rear direction on the mounting rod 4.
[0033] There are five DC circuits, and the five DC circuits are provided corresponding to the five mounting rods 4 one by one. Each DC circuit includes an anode end and a cathode end arranged at intervals in the left-right direction. The anode end includes an anode copper pad 10 provided on one of the upper support platforms 7 and an anode wire passing through the plated through hole 9 on the corresponding side. The anode copper pad 10 and the anode wire are electrically connected; the cathode end includes a cathode copper pad 11 provided on the other upper support platform 7 and a cathode wire passing through the plated through hole 9 on the corresponding side. The cathode copper pad 11 and the cathode wire are electrically connected.
[0034] The anode of the LED 3 contacts the anode copper pad 10 on the corresponding mounting rod 4; the cathode of the LED 3 contacts the cathode copper pad 11 on the corresponding mounting rod 4 to supply power to the LED 3.
[0035] When an LED adjustable backlight verification device of the present utility model is in use, first, according to different types of light bars required, LEDs 3 with different quantities and different spacings are placed in the open slots 5 on each mounting rod 4. At the same time, the anodes of the LEDs 3 are made to contact the anode copper clads 10 on the corresponding mounting rods 4, and the cathodes are made to contact the cathode copper clads 11 on the corresponding mounting rods 4. Finally, the reflective paper, diffusion plate, film sheet, and liquid crystal panel are sequentially arranged at the notch position of the mounting groove 2 from the inside out. Then, the power supply can be turned on and the liquid crystal panel can be observed to observe the performance of the light bar. At the same time, the position of the LEDs 3 in the open slots 5 is continuously adjusted to avoid defects such as dark corners and dark bands.
[0036] When an LED adjustable backlight verification device of the present utility model is in use, by setting LEDs with different spacings and different quantities between the anode end and the cathode end to verify the light effects emitted by the LEDs with different spacings and different quantities, a light bar is made according to the verification results obtained, avoiding the need for multiple designs and productions of the actually made light bar, thereby reducing costs, shortening the verification cycle, and improving efficiency.
[0037] Embodiment 2 of an LED adjustable backlight verification device provided by the present utility model:
[0038] The main difference from Embodiment 1 is that in Embodiment 1, a plurality of mounting rods extending in the front-rear direction are provided in the mounting groove. The mounting rods correspond to the DC circuits one by one, and open slots are provided on the mounting rods. The open slots extend in the front-rear direction. The anode end and the cathode end are provided in the open slots, and the LEDs are supported on the upper end surfaces of the mounting rods at the notch of the open slots.
[0039] In this embodiment, the anode end and the cathode end of the DC circuit are directly provided at the bottom of the mounting groove. At this time, magnets are provided on the lower end surface of the base and the magnets are located between the anode end and the cathode end of the corresponding DC circuit. The magnets are used to adsorb the LEDs to fix the LEDs.
[0040] Embodiment 3 of an LED adjustable backlight verification device provided by the present utility model:
[0041] The main difference from Embodiment 1 is that in Embodiment 1, the open slots are T-shaped slots and each includes two upper support surfaces and one lower support surface. Sinking copper holes extending in the front-rear direction are provided on the mounting rods on both left and right sides of the open slots. The anode end includes an anode copper clad provided on one of the upper support surfaces and an anode wire passing through the sinking copper hole on the corresponding side. The anode copper clad and the anode wire are electrically connected. The cathode end includes a cathode copper clad provided on the other upper support surface and a cathode wire passing through the sinking copper hole on the corresponding side. The cathode copper clad and the cathode wire are electrically connected.
[0042] In this embodiment, the open slot is a square slot. Serrated limiting teeth are provided on both the left and right side walls of the open slot. The lower end of the LED is disposed in the open slot, and serrated fixing teeth adapted to and meshing with the limiting teeth are provided on both the left and right sides of the part of the LED disposed in the open slot. During use, the LED is fixed by the mutual blocking of the fixing teeth and the limiting teeth. When adjusting, the LED can be taken out of the open slot and placed at other positions.
[0043] Embodiment 4 of an LED adjustable backlight verification device provided by the present utility model:
[0044] The main difference from Embodiment 1 is that: in Embodiment 1, at least one pair of sliding slots are further provided on the mounting rod. The two sliding slots in a pair are symmetrically disposed on the left and right sides of the open slot, and the sliding slots are adapted to the pins of the lens on the LED.
[0045] In this embodiment, at least two rows of fixing holes are provided on the mounting rod. The two rows of fixing holes in a pair are symmetrically disposed on the left and right sides of the open slot, and the fixing holes are adapted to the pins of the lens on the LED.
[0046] Based on the above description of this specification, those skilled in the art can also understand the following terms used. For example, terms indicating orientation or positional relationship such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings of this specification. They are only for the purpose of facilitating the description of the solution of the present utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operated in the specific orientation. Therefore, the above terms indicating orientation or positional relationship cannot be understood or interpreted as a limitation to the solution of the present utility model.
[0047] In addition, in the description of this specification, the meaning of "a plurality" is at least two, such as two, three or more, etc., unless otherwise specifically and clearly defined.
Claims
1. An LED adjustable backlight verification equipment, characterized in that: The invention comprises a base, a mounting groove is provided on the base, and reflective paper, a diffusion plate, a diaphragm and a liquid crystal panel are arranged in sequence from the inside to the outside at the notch of the mounting groove; at least two DC circuits are arranged in the mounting groove and spaced apart along the left and right directions, each DC circuit comprises an anode terminal and a cathode terminal arranged in the left and right directions and the anode terminal and the cathode terminal both extend in the front-back direction, an LED is arranged between the anode terminal and the cathode terminal of each DC circuit, a plurality of LEDs are provided between the anode terminal and the cathode terminal of the DC circuit and the position of the LED is adjustable, the anode of the LED is electrically connected to the anode terminal, and the cathode of the LED is electrically connected to the cathode terminal.
2. The LED adjustable backlight verification equipment according to claim 1, characterized in that: A plurality of mounting rods extending in the front-to-back direction are arranged in the mounting groove, the mounting rods correspond to the DC lines one by one and an open groove is opened on the mounting rods, the open groove extends in the front-to-back direction, the anode terminal and the cathode terminal are arranged in the open groove, and the LED is supported on the upper end surface of the mounting rod at the notch of the open groove.
3. The LED adjustable backlight verification equipment according to claim 2, characterized in that: The mounting rods are arranged at equal intervals along the left-right direction.
4. The LED adjustable backlight verification equipment according to claim 3, characterized in that: Each LED is provided with a lens, and the mounting rod is provided with at least one pair of sliding grooves, the two pairs of sliding grooves are symmetrically arranged on the left and right sides of the open groove, and the sliding grooves are adapted to the column feet of the lens on the LED.
5. The LED adjustable backlight verification equipment according to claim 4, characterized in that: Two pairs of sliding grooves are arranged on the mounting rod.
6. The LED adjustable backlight verification equipment according to any one of claims 2 to 5, characterized in that: The open groove is a T-shaped groove and includes two upper supporting tables and one lower supporting table. The mounting rods on the left and right sides of the open groove are provided with copper-plated holes extending in the front-to-back direction; the anode terminal includes an anode copper attached on one of the upper supporting tables and an anode wire passing through the copper-plated hole on the corresponding side, and the anode copper attached and the anode wire are electrically connected; the cathode terminal includes a cathode copper attached on the other upper supporting table and a cathode wire passing through the copper-plated hole on the corresponding side, and the cathode copper attached and the cathode wire are electrically connected.
7. The LED adjustable backlight verification equipment according to any one of claims 2 to 5, characterized in that: A heat dissipation aluminum foil is provided at the lower end of the mounting rod.