Backlight module and display device

Abstract

The utility model discloses a backlight module and a display device, a light bar comprises a first substrate and at least two columns of lamp beads, the multiple columns of lamp beads are arranged on the first substrate, the multiple columns of lamp beads are arranged at intervals in the thickness direction of the backlight module, the color gamuts of the multiple lamp beads in the same column are the same, the color gamuts of the multiple lamp beads in the same column are different, and the color gamuts of the multiple lamp beads in the same column are different. The color gamuts of the lamp beads in different columns are different; when the display device displays, the working states of the lamp beads in different columns can be controlled according to different display requirements, so that the color gamut is adjusted according to the requirements of the display environment of the display device, and different display effects of the display device are achieved. In addition, due to the fact that the multiple columns of lamp beads with different color gamuts are integrated on one substrate, when the lamp strips are installed, only the first substrate needs to be fixed to the side plate, the lamp strips do not need to be installed repeatedly, and the assembling efficiency of the backlight module is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a backlight module and a display device. BACKGROUND

[0002] The liquid crystal display device includes a backlight module and a liquid crystal display panel, and the backlight module is used for providing a light source for the liquid crystal display panel. The backlight module of the liquid crystal display device in the conventional scheme is usually a single color gamut, so that the liquid crystal display device can only be displayed in a single color gamut display environment, which causes the backlight module to be unable to adjust the color gamut according to the needs of the display environment of the liquid crystal display device. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the present application provide a backlight module and a display device, which can adjust the color gamut according to the needs of the display environment of the display device.

[0004] In a first aspect, embodiments of the present application provide a backlight module, comprising:

[0005] A back plate, the back plate comprises a bottom plate and a first side plate, and the first side plate and the bottom plate enclose a containing cavity;

[0006] A light guide piece, the light guide piece is arranged on the bottom plate, and the light guide piece is located in the containing cavity;

[0007] A lamp strip, the lamp strip is arranged between the light guide piece and the first side plate, and the light exit surface of the lamp strip faces the light guide piece, the lamp strip comprises a first substrate and at least two columns of lamp beads, and a plurality of columns of lamp beads are arranged on the first substrate, and the plurality of columns of lamp beads are arranged in the thickness direction of the backlight module, the color gamut of the plurality of lamp beads in the same column is the same, and the color gamut of the lamp beads in different columns is different.

[0008] Further, the backlight module further comprises a rubber frame, the rubber frame is arranged on the first side plate, and the rubber frame is clamped and fixed with the lamp strip and the first side plate.

[0009] Further, the rubber frame comprises a second substrate, a second side plate and a third side plate, the second side plate and the third side plate are fixed with the second substrate, the second side plate and the third side plate extend towards the direction of the bottom plate, and the distance from the second side plate to the light guide piece is less than the distance from the third side plate to the light guide piece, a clamping groove is formed between the second side plate and the third side plate, and a part of the first side plate and a part of the first substrate are clamped in the clamping groove.

[0010] Further, the area of the opening of the clamping groove close to the bottom plate is greater than the area of the side of the clamping groove away from the bottom plate.

[0011] Further, the bottom plate is provided with a positioning groove, and a part of the first substrate is located in the positioning groove.

[0012] Further, an area of an opening of the positioning groove close to one side of the light guide is greater than an area of the other side of the positioning groove away from the light guide.

[0013] Further, a thickness of the light guide is not less than a sum of lengths of the plurality of lamp beads arranged in the thickness direction of the backlight module.

[0014] Further, a surface of the lamp strip away from the bottom plate is flush with a surface of the side plate away from the bottom plate.

[0015] Further, adjacent two lamp beads in one column of the plurality of lamp beads have a first spacing, and adjacent two lamp beads in another column of the plurality of lamp beads have a second spacing, and the first spacing is equal to the second spacing.

[0016] In a second aspect, an embodiment of the present application provides a display device, which comprises the backlight module, and further comprises a display panel, and the display panel is arranged on the backlight module.

[0017] The present application has the following beneficial effects:

[0018] The present application provides a backlight module, by arranging the lamp strip to comprise a first substrate and at least two columns of lamp beads, the plurality of columns of lamp beads are arranged on the first substrate, and the plurality of columns of lamp beads are arranged at intervals in the thickness direction of the backlight module, the color gamut of the plurality of lamp beads in the same column is the same, and the color gamut of the lamp beads in different columns is different; during display of the display device, the working state of the lamp beads in different columns can be controlled according to different display needs, so that the color gamut is adjusted according to the display environment of the display device, and different display effects of the display device are realized. Moreover, the plurality of columns of lamp beads with different color gamuts are integrated on one substrate, and during installation of the lamp strip, the first substrate only needs to be fixed on the side plate, and the lamp strip does not need to be installed multiple times, so that the assembly efficiency of the backlight module is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic view of a display device of the present application;

[0020] Figure 2 is a schematic view of a backlight module of a display device of the present application;

[0021] Figure 3 is a schematic view of a lamp strip of a backlight module of a display device of the present application;

[0022] Figure 4is a schematic view of a back plate of a backlight module of a display device of the present application;

[0023] Figure 5 is a schematic view of a glue frame of a backlight module of a display device of the present application.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 10-backlight module; 100-back plate, 110-bottom plate, 111-positioning groove, 120-side plate, 130-housing cavity; 200-light guide; 300-lamp strip, 310-first substrate, 320-lamp bead; 400-glue frame, 410-second substrate, 420-second side plate, 430-third side plate, 440-clamping groove; 500-optical film; 600-reflective member; 20-display panel. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings of the embodiments of the present application. The technical solutions described below are only used to explain and illustrate the ideas of the present application, and should not be regarded as limiting the protection scope of the present application.

[0027] In addition, the terms "first", "second", and similar words do not represent any order, number or importance, but are only used to distinguish different technical features. The term "multiple" and similar words represent two or more, unless otherwise explicitly limited.

[0028] The embodiments of the present application provide a display device, referring to Figures 1-3 , the display device comprises the backlight module 10 and the display panel 20, the display panel 20 is arranged on the backlight module 10; the backlight module 10 further comprises a back plate 100, a light guide 200 and a lamp strip 300.

[0029] Specifically, the back plate 100 comprises a bottom plate 110 and a first side plate 120, the first side plate 120 and the bottom plate 110 form a housing cavity 130; the light guide 200 is arranged on the bottom plate 110, and the light guide 200 is located in the housing cavity 130; the lamp strip 300 is arranged between the light guide 200 and the first side plate 120, and the light emitting surface of the lamp strip 300 faces the light guide 200, the lamp strip 300 comprises a first substrate 310 and at least two columns of lamp beads 320, multiple columns of lamp beads 320 are arranged on the first substrate 310, and multiple columns of lamp beads 320 are arranged in the thickness direction L of the backlight module 10, the color gamut of multiple lamp beads 320 in the same column is the same, and the color gamut of lamp beads 320 in different columns is different.

[0030] The backlight module 10 of the liquid crystal display device of the conventional scheme is usually single color gamut, so that the liquid crystal display device can only display in a single color gamut display environment, which causes the backlight module 10 to be unable to adjust the color gamut according to the needs of the display environment of the liquid crystal display device. Therefore, the lamp strip 300 is provided to include a first substrate 310 and a plurality of lamp beads 320, the plurality of lamp beads 320 are arranged on the first substrate 310, and the plurality of lamp beads 320 are arranged in the thickness direction L of the backlight module 10, the color gamut of the plurality of lamp beads 320 in the same column is the same, and the color gamut of the lamp beads 320 in different columns is different; during display of the display device, the working state of the lamp beads 320 in different columns can be controlled according to different display needs, so that the color gamut is adjusted according to the needs of the display environment of the display device, thereby realizing different display effects of the display device. Moreover, the plurality of lamp beads 320 with different color gamuts are integrated on the first substrate 310, and when the lamp strip 300 is installed, the first substrate 310 only needs to be fixed on the side plate 120, and the lamp strip 300 does not need to be installed multiple times, thereby improving the assembly efficiency of the backlight module 10 of the display device.

[0031] In the embodiment, the display device is a liquid crystal display device.

[0032] In the embodiment, three columns of lamp beads 320 are arranged on the first substrate 310, wherein the color gamut of the first column of lamp beads 320 is low color gamut, the color gamut of the second column of lamp beads 320 is medium color gamut, and the color gamut of the third column of lamp beads 320 is high color gamut.

[0033] In the embodiment, four columns of lamp beads 320 are arranged on the first substrate 310.

[0034] In the embodiment, referring to Figure 2 , the backlight module 10 further includes a rubber frame 400, the rubber frame 400 is arranged on the first side plate 120, and the rubber frame 400 is clamped and fixed with the lamp strip 300 and the first side plate 120. Compared with the conventional scheme of fixing the lamp strip 300 by double-sided adhesive tape, on the one hand, the difficulty of installing the lamp strip 300 is reduced, which is beneficial to improving the installation efficiency of the backlight module 10 of the display device, and on the other hand, when the lamp strip 300 is abnormal, the lamp strip 300 can be easily disassembled, thereby reducing the difficulty of rework and maintenance of the backlight module 10 of the display device.

[0035] In the embodiment, referring to Figure 2 , Figure 4 , Figure 5The glue frame 400 includes a second base plate 410, a second side plate 420 and a third side plate 430. The second side plate 420 and the third side plate 430 are fixed with the second base plate 410 and extend towards the bottom plate 110. The distance between the second side plate 420 and the third side plate 430 is greater than the distance between the second side plate 420 and the light guide 200. The first side plate 120 and the first base plate 310 are clamped in the clamping groove 440. The glue frame 400 includes the second base plate 410, the second side plate 420 and the third side plate 430. The second side plate 420 and the third side plate 430 are fixed with the second base plate 410 and extend towards the bottom plate 110. The distance between the second side plate 420 and the third side plate 430 is greater than the distance between the second side plate 420 and the light guide 200. The first side plate 120 and the first base plate 310 are clamped in the clamping groove 440. When the light bar 300 is installed, the glue frame 400, the first base plate 310 and the first side plate 120 are clamped. The light bar 300 is installed. The difficulty of installing the light bar 300 is reduced. The installation efficiency of the backlight module 10 is improved. When the light bar 300 is disassembled, the glue frame 400 is removed. The light bar 300 is removed. The disassembly of the light bar 300 is achieved. The difficulty of rework and maintenance of the backlight module 10 of the display device is reduced.

[0036] In this embodiment, the area of the opening of the clamping groove 440 near the bottom plate 110 is greater than the area of the opening of the clamping groove 440 away from the bottom plate 110. When the light bar 300 is clamped and fixed by using the glue frame 400, the first side plate 120 can easily enter the clamping groove 440. The difficulty of installing the light bar 300 is further reduced.

[0037] In this embodiment, the area of the opening of the clamping groove 440 near the bottom plate 110 is greater than the area of the opening of the clamping groove 440 away from the bottom plate 110. When the light bar 300 is clamped and fixed by using the glue frame 400, the first side plate 120 can easily enter the clamping groove 440. The difficulty of installing the light bar 300 is further reduced. Figure 4The bottom plate 110 is provided with a positioning groove 111, and a portion of the first substrate 310 is located in the positioning groove 111. By providing the positioning groove 111 on the bottom plate 110 and arranging the portion of the first substrate 310 in the positioning groove 111, the positioning groove 111 can play a role of pre-positioning when the light bar 300 is installed, facilitating the clamping of the first substrate 310 with the clamping groove 440, thereby further reducing the assembly difficulty of the backlight module 10 of the display device.

[0038] In the embodiment, the area of the opening of the positioning groove 111 close to one side of the light guide piece 200 is greater than the area of the opening of the positioning groove 111 away from the other side of the light guide piece 200. By arranging the area of the opening of the positioning groove 111 close to one side of the light guide piece 200 to be greater than the area of the opening of the positioning groove 111 away from the other side of the light guide piece 200, the first substrate 310 of the light bar 300 is more easily aligned with the positioning groove 111, thereby ensuring that the first substrate 310 of the light bar 300 can be more easily inserted into the positioning groove 111.

[0039] In the embodiment, referring to Figure 2 The thickness of the light guide piece 200 is not less than the sum of the lengths c of the plurality of lamp beads 320 arranged in the thickness direction L of the backlight module 10. By arranging the thickness of the light guide piece 200 to be not less than the sum of the lengths e of the plurality of lamp beads 320 arranged in the thickness direction L of the backlight module 10, the light guide piece 200 is thickened in the backlight module 10 of the display device, ensuring that the side wall of the light guide piece 200 can align with the plurality of lamp beads 320 on the first substrate 310, so that the light of each column of lamp beads 320 can enter the light guide piece 200.

[0040] In the embodiment, referring to Figure 2 The surface of the light bar 300 away from the bottom plate 110 is flush with the surface of the side plate 120 away from the bottom plate 110. By arranging the surface of the light bar 300 away from the bottom plate 110 to be flush with the surface of the side plate 120 away from the bottom plate 110, the side plate 120 of the back plate 100 is thickened in the backlight module 10 of the display device, so as to ensure that the first substrate 310 of the light bar 300 is clamped and fixed by the frame 400.

[0041] In the embodiment, referring to Figure 3 The first distance a between the two adjacent lamp beads 320 in one column of the plurality of lamp beads 320 is equal to the second distance b between the two adjacent lamp beads 320 in another column of the plurality of lamp beads 320.

[0042] In the embodiment, referring to Figure 2The backlight module 10 further comprises an optical film 500 arranged on the side of the light guide 200 away from the bottom plate 110.

[0043] In the present embodiment, reference is made to Figure 2 The backlight module 10 further comprises a reflective member 600 arranged between the light guide 200 and the bottom plate 110.

[0044] The specific embodiments of the present application have been described above. The above-described embodiments of the present application are only preferred embodiments of the present application. For those skilled in the art, many modifications and improvements can be made without departing from the concept of the present application. These modifications and improvements fall within the scope of the claims of the present application.

Claims

1. A backlight module, characterized in that, The backlight module comprises: a backboard, which comprises a bottom plate and a first side plate, and the first side plate and the bottom plate form a containing cavity; a light guide member, which is arranged on the bottom plate and located in the containing cavity; a light bar, which is arranged between the light guide member and the first side plate, and the light-emitting surface of the light bar faces the light guide member, the light bar comprises a first substrate and at least two columns of lamp beads, and the lamp beads in different columns have different color gamut.

2. The backlight module of claim 1, wherein, The backlight module further comprises a glue frame, which is arranged on the first side plate and is clamped and fixed with the light bar and the first side plate.

3. The backlight module of claim 2, wherein, The glue frame comprises a second substrate, a second side plate and a third side plate, the second side plate and the third side plate are fixed with the second substrate, the second side plate and the third side plate extend towards the bottom plate, the distance from the second side plate to the light guide member is less than the distance from the third side plate to the light guide member, a clamping groove is formed between the second side plate and the third side plate, and a part of the first side plate and a part of the first substrate are clamped in the clamping groove.

4. The backlight module of claim 3, wherein, The area of the opening of the clamping groove close to the bottom plate is greater than the area of the opening of the clamping groove away from the bottom plate.

5. The backlight module of claim 3, wherein, A positioning groove is arranged on the bottom plate, and a part of the first substrate is located in the positioning groove.

6. The backlight module of claim 5, wherein, The area of the opening of the positioning groove close to the light guide member is greater than the area of the opening of the positioning groove away from the light guide member.

7. The backlight module of claim 3, wherein, The thickness of the light guide member is not less than the sum of the lengths of the lamp beads arranged in the thickness direction of the backlight module.

8. The backlight module of claim 1, wherein, The surface of the light bar away from the bottom plate is flush with the surface of the side plate away from the bottom plate.

9. The backlight module of claim 1, wherein, The first distance between two adjacent lamp beads in one column of lamp beads is equal to the second distance between two adjacent lamp beads in another column of lamp beads.

10. A display device, characterized by comprising: The display device comprises the backlight module of any one of claims 1-9 and a display panel, and the display panel is arranged on the backlight module.

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