Backlight module and display

Abstract

The utility model provides a backlight module and a displayer. A back plate module comprises a back plate and a plurality of LED arrays. The plurality of LED arrays are uniformly laid on the back plate, each LED array comprises a plurality of LED lamp beads, and the LED lamp beads in each LED array are arranged on the back plate at equal intervals. According to the utility model, the cost can be reduced while the halo is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of displays, and particularly relates to a backlight module and a display. Background Art

[0002] In recent years, MINILED has been widely used in direct-lit backlight TV modules. Compared with traditional backlights, MINILED backlights achieve characteristics such as ultra-high resolution, wide color gamut, high contrast ratio, high brightness, high dynamic contrast ratio, and low power consumption through arranging thousands of LED beads and local dimming technology, and thus are deeply loved by users.

[0003] At the same time, the halos and weakening effects (halo effect) generated along with MINILED backlights have also become common problems of local dimming technology. A single partition in a MINILED backlight can be regarded as a point light source. The central brightness of the point light source is high, and the farther away from the center, the lower the brightness. Specifically, when a certain object is displayed on the screen, the central brightness of the object is high, the brightness of the outer circle is low, and halos will be formed in the range larger than the outer circle of the object, thereby reducing the contrast ratio and affecting the display effect. Currently, the commonly used solution is to perform finer partitioning, that is, to increase the number of partitions. However, finer partitioning will lead to a significant increase in cost. Summary of the Utility Model

[0004] The utility model provides a backlight module and a display, aiming to solve the problem of high cost of the current methods for solving halos and weakening effects.

[0005] In a first aspect, the utility model provides a backplane module. The backplane module includes a backplane and a plurality of LED arrays; the plurality of LED arrays are evenly laid on the backplane, and each LED array includes a plurality of LED beads, and the LED beads in each LED array are arranged on the backplane at equal intervals.

[0006] Further, the areas of the regions surrounded by each LED array are equal.

[0007] Further, there are N*M LED arrays provided on the backplane, where N is the number of LED arrays arranged horizontally, M is the number of LED arrays arranged vertically, and both N and M are natural numbers greater than 0.

[0008] Further, the LED array is a square array.

[0009] Further, one LED bead is provided at each corner of the square array.

[0010] Further, the LED array is a rhombus array.

[0011] Further, one of the LED beads is provided at each corner of the diamond array.

[0012] Further, the LED bead is a MINILED bead.

[0013] Further, the first spacing between each LED array and its adjacent LED arrays on the left and right is equal, and the second spacing between each LED array and its adjacent LED arrays above and below is equal.

[0014] In a second aspect, the present utility model further provides a display, including the backlight module described in any one of the above.

[0015] The display disclosed by the present utility model includes a backlight module. The backlight module includes a backplane, and a plurality of LED arrays are evenly laid on the backplane. The LED beads in each LED array are arranged on the backplane at equal intervals. For the same display object, the area of the formed halo can be reduced, the display effect can be improved. At the same time, more refined zoning is not required, and the cost can be reduced. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic structural diagram of a backplane module provided by an embodiment of the present utility model;

[0018] Figure 2 is an optical effect diagram provided by an embodiment of the present utility model;

[0019] Figure 3 is an optical effect schematic diagram provided by an embodiment of the present utility model;

[0020] Description of the Drawings: 1. LED bead; 2. LED array; 3. Lit partition; 4. Display screen; 5. Backplane. Detailed Embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0022] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, wholes, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, wholes, operations, elements, components and / or their combinations.

[0023] It should also be understood that the terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. As used in the specification of the present utility model and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms. It should be further understood that the term " / or" used in the specification of the present utility model and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0024] In addition, the directional terms mentioned in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are only references to the directions of the attached drawings and the usage state of the product. Therefore, the directional terms used are for explaining and understanding the present utility model, rather than for limiting the present utility model. In addition, in the drawings, structures that are similar or the same are denoted by the same reference numerals.

[0025] See Figures 1 to 3 , Figure 1 is a schematic structural diagram of a backplane module provided by an embodiment of the present utility model; Figure 2 is a light effect diagram provided by an embodiment of the present utility model; Figure 3 is a schematic light effect diagram provided by an embodiment of the present utility model. As Figure 1 shown, the backplane module includes a backplane 5 and a plurality of LED arrays 2; the plurality of LED arrays 2 are evenly laid on the backplane 5, and each LED array 2 includes a plurality of LED beads 1, and the LED beads 1 in each LED array 2 are equidistantly arranged on the backplane 5.

[0026] Specifically, the backplane module may include a backplane 5 and a plurality of LED arrays 2, and the plurality of LED arrays 2 are evenly laid on the backplane 5. Each LED array 2 may include a plurality of LED beads 1. Preferably, each LED array 2 may include four LED beads 1, and the LED beads 1 in each LED array 2 are equidistantly arranged on the backplane 5.

[0027] The LED array 2 is generally composed of multiple LED lamp beads 1, and the shape enclosed by the multiple LED lamp beads 1 can be square or rhombus. Preferably, for the LED lamp beads 1 within the same LED array 2, if the enclosed shape is square, then each LED array 2 includes four LED lamp beads 1, and the four LED lamp beads 1 are respectively located at the four corners of the square.

[0028] The sizes and shapes of the display screens 4 corresponding to different display objects can be different, and the number of LED arrays 2 required to be lit for different display screens 4 is different. When more LED arrays 2 need to be lit additionally, the generated halo is larger. As Figure 2 and Figure 3 shown, Figure 2 is the effect diagram of the light effect, Figure 3 is the schematic diagram of the light effect, Figure 3 which contains concentric circles. The outer ring part is the halo. The smaller the outer ring, the greater the brightness of the inner ring and the higher the black and white contrast ratio.

[0029] Taking the display screen 4 as a circle as an example, as Figure 1 shown, Figure 1 contains multiple LED arrays 2, and a display screen 4 includes four LED arrays 2. These four LED arrays 2 are the lit partitions 3. As can be seen from Figure 1 the display screen 4 includes partial areas of four LED arrays 2, and the areas of the regions of the four LED arrays 2 that are not included in the display screen 4 are equal, making the outer ring partitions of the display screen 4 more uniform, avoiding the appearance of angular effects. At the same time, since fewer LED partitions 3 are lit, the size of the halo is also reduced, improving the display effect.

[0030] In addition, a refractive lens can be used to achieve uniform divergence of the light emitted by the MINILED within the area, avoiding the problem of light emission beams when the reflective lens lights up some lamp areas. The refractive lens emits light from the top, while the reflective lens also has individual light emissions on the outer sides except the top. At the same time, the current of a single LED array 2 can be increased to further improve the central brightness to achieve a better regional dimming display effect.

[0031] As a further embodiment, the areas of the regions enclosed by each of the LED arrays 2 are equal.

[0032] As a further embodiment, the LED array 2 is a square array.

[0033] As a further embodiment, one LED lamp bead 1 is provided at each corner of the square array.

[0034] As a further embodiment, the LED array 2 is a rhombus array.

[0035] As a further embodiment, one of the LED beads 1 is provided at each corner of the rhombic array.

[0036] Each LED array 2 includes a plurality of LED beads 1, and the areas of the regions surrounded by the LED beads 1 included in the same LED array 2 are equal. For example, the LED array 2 can be a square array or a rhombic array, and when the LED array 2 is a square array or a rhombic array, each LED array 2 includes four LED beads 1.

[0037] As a further embodiment, N*M LED arrays 2 are provided on the backplane 5, where N is the number of LED arrays 2 arranged horizontally, M is the number of LED arrays 2 arranged vertically, and both N and M are natural numbers greater than 0.

[0038] Among them, the LED arrays 2 provided on different-sized displays are different. For example, for a 49-inch display, it can be provided with 91 LED arrays 2, that is, N = 13, M = 7, a total of 91 LED arrays 2.

[0039] As a further embodiment, the LED bead 1 is a MINILED bead 1.

[0040] Specifically, the LED bead 1 can be a MINILED bead 1.

[0041] As a further embodiment, the first spacing between each LED array 2 and its adjacent LED arrays 2 on the left and right is equal, and the second spacing between each LED array 2 and its adjacent LED arrays 2 above and below is equal.

[0042] Among them, as Figure 1 shown, Figure 1 the horizontal intervals of each LED array 2 are equal, that is, the first spacing is equal, the vertical intervals of each LED array 2 are equal, that is, the second spacing is equal, and the first spacing can be equal to the second spacing, which is convenient for reducing the halo.

[0043] The present utility model also provides a display, which includes the backplane module described in any one of the above embodiments; the backplane module includes a backplane 5 and a plurality of LED arrays 2; the plurality of LED arrays 2 are evenly laid on the backplane 5, and each LED array 2 includes a plurality of LED beads 1, and the LED beads 1 in each LED array 2 are equidistantly arranged on the backplane 5.

[0044] Specifically, the backplane module may include a backplane 5 and a plurality of LED arrays 2, and the plurality of LED arrays 2 are evenly laid on the backplane 5. Each LED array 2 may include a plurality of LED beads 1. Preferably, each LED array 2 may include four LED beads 1, and the LED beads 1 in each LED array 2 are arranged on the backplane 5 at equal intervals.

[0045] The LED array 2 is generally composed of a plurality of LED beads 1, and the shape enclosed by the plurality of LED beads 1 may be square or diamond-shaped. Preferably, for the LED beads 1 in the same LED array 2, the shape enclosed by them is square, then each LED array 2 includes four LED beads 1, and the four LED beads 1 are respectively located at the four corners of the square.

[0046] The sizes and shapes of the display screens 4 corresponding to different display objects may be different, and the number of LED arrays 2 that need to be lit for different display screens 4 is different. When more LED arrays 2 need to be lit additionally, the larger the generated halo is. As Figure 2 and Figure 3 shown, Figure 2 is the effect diagram of the light effect, Figure 3 is the schematic diagram of the light effect, Figure 3 which contains concentric circles, the outer circle part is the halo, the smaller the outer circle, the greater the brightness of the inner circle, and the higher the black and white contrast ratio.

[0047] Taking the display screen 4 as a circle as an example, as Figure 1 shown, Figure 1 contains a plurality of LED arrays 2, and a display screen 4 includes four LED arrays 2, and these four LED arrays 2 are the lit partitions 3. It can be seen from Figure 1 that the display screen 4 includes partial areas of four LED arrays 2, and the area sizes of the areas of the four LED arrays 2 that are not included in the display screen 4 are equal, making the outer circle partition of the display screen 4 more uniform, avoiding the appearance of angular effects. At the same time, since fewer LED partitions 3 are lit, the size of the halo is also reduced, improving the display effect.

[0048] In addition, a refractive lens can be used to achieve uniform divergence of the light emitted by the MINILED within the area, avoiding the problem of light emission beams when the reflective lens lights up some lamp areas. The refractive lens emits light from the top, while the reflective lens also has individual light emissions on the outer sides except the top. At the same time, the current of a single LED array 2 can be increased to further improve the central brightness to achieve a better area dimming display effect.

[0049] The backlight module and the display disclosed by the present utility model can reduce the size of the halo and improve the display effect by arranging the LED beads in each LED array at equal intervals on the backplane.

[0050] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A backlight module, characterized in that: include: Back panel; A plurality of LED arrays, wherein the plurality of LED arrays are evenly laid on the back plate, and each of the LED arrays comprises a plurality of LED lamp beads, and the LED lamp beads in each LED array are evenly spaced and arranged on the back plate; The areas enclosed by each LED array are equal in area; the first spacing between each LED array and its adjacent LED arrays on the left and right is equal, and the second spacing between each LED array and its adjacent LED arrays on the top and bottom is equal.

2. The backlight module according to claim 1, characterized in that: The back panel is provided with N*M LED arrays, wherein N is the number of LED arrays arranged horizontally, M is the number of LED arrays arranged vertically, and both N and M are natural numbers greater than 0.

3. The backlight module according to claim 1, wherein: The LED array is a square array.

4. The backlight module according to claim 3, characterized in that: Each corner of the square array is provided with an LED lamp bead.

5. The backlight module according to claim 1, wherein: The LED array is a diamond array.

6. The backlight module according to claim 5, characterized in that: An LED lamp bead is arranged on each corner of the diamond array.

7. The backlight module according to claim 1, wherein: The LED lamp beads are MINILED lamp beads.

8. A display, characterized in that: It comprises the backlight module as described in any one of claims 1 to 7.

Images