CN219552791U - Backlight module with glass light guide plate and spray-painted glass backboard attached - Google Patents

Abstract

The utility model relates to the technical field of side-in type backlight modules, and in order to solve the technical problem of thicker existing backlight modules, the utility model provides a backlight module with a glass light guide plate and an inkjet type glass backboard attached, wherein the rear side of the glass light guide plate is provided with reflecting paper, the rear side of the reflecting paper is attached to the glass backboard through a back glue layer of the reflecting paper, the outside of a lamp strip is wrapped with a metal radiator, the metal radiator extends upwards to wrap the lower part of the glass backboard, the outside of the metal radiator is provided with a rear shell, a circuit board is arranged between the rear shell and the metal radiator, the upper, left and right surrounding sides of the backlight module are provided with rims, the front side of the backlight module is respectively provided with a front frame, and the outside of the glass backboard is provided with patterns in an inkjet manner. Through the structural change, cancel the structural optimization interval of center, the glass light guide plate is thinner, has reduced backlight unit's thickness on the whole for the complete machine structure is ultra-thin, simultaneously through spraying the drawing pattern on the glass backplate, improves pleasing to the eye degree.

Description

Backlight module with glass light guide plate and spray-painted glass backboard attached

Technical Field

The utility model relates to the technical field of side-in type backlight modules, in particular to a backlight module with a glass light guide plate and an inkjet type glass backboard attached.

Background

In the existing display devices such as a display and a television, a side-in backlight or a direct-type backlight is adopted, wherein the side-in backlight is to arrange lamp beads on the periphery of the display device, and the common form is two sides of a display device or the bottom of the display device. The direct type backlight is characterized in that the lamp beads are arranged on the back of the display device, so that the display device of the direct type backlight is generally thicker than that of the side-in type backlight, the pursuit of the product modeling is continuously improved while the display effect and the service performance are pursued, the appearance is exquisite, the cost is low, the convenience of maintenance becomes one of the problems of continuous research, and the side-in type backlight is often adopted for the most slim and attractive design.

The side-in type LED backlight module comprises an LED light source and a light guide plate, wherein the light guide plate converts a linear light source into a surface light source, the LED light source is arranged on the side surface of the light guide plate, light emitted by LED packaging enters the light guide plate, and is reflected and scattered through glass substrate reflection paper to propagate towards the direction of a liquid crystal panel.

As shown in fig. 1, the existing backlight module is a set of iron back plate 7 as a main structure, and has a heat dissipation function, a front frame 2 is arranged on the right side of the iron back plate 7, a plastic middle frame 8 is arranged below the horizontal part of the front frame 2, and the plastic middle frame 8 separates the liquid crystal panel 1 from the optical film 3, so that a larger gap is reserved between the liquid crystal panel 1 and the optical film 3, and the thickness of the backlight module is larger; the backlight material can only be assembled from inside the machine in layers and is soft in overall strength. The light guide plate is generally made of plastic, the light guide rate of the plastic light guide plate 4 is low, the required brightness can be achieved only by increasing the luminous intensity of the lamp strip 5, the comprehensive cost of the product is high, the production efficiency of the traditional assembly mode is low, and deformation is easy to generate when the temperature is too high. Meanwhile, the existing backlight module is difficult to meet the increasing aesthetic requirements of people in appearance design, and meanwhile, the cost is required to be reduced.

Disclosure of Invention

In order to solve the technical problem of thicker backlight module, the utility model provides a backlight module with a glass light guide plate and an inkjet glass backboard attached.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the utility model provides a backlight unit of glass light guide plate and laminating of air brushing formula glass backplate, including LCD panel and glass light guide plate and set up and be provided with the optics diaphragm between the two, the bottom of glass light guide plate is provided with the lamp strip that is used for providing the light source, the rear side of glass light guide plate is provided with the reflection paper, the rear side of reflection paper passes through its gum layer laminating glass backplate, the outside parcel of lamp strip has metal radiator, metal radiator upwards extends the lower part of cladding glass backplate, metal radiator's outside is provided with the backshell, be provided with the circuit board between backshell and the metal radiator, backlight unit's top wall, left side wall and right side wall are provided with the frame, backlight unit's front side is provided with the front bezel respectively, the outside air brushing of glass backplate has the pattern.

Compared with the existing backlight module, the structure of the middle frame is canceled, so that the distance between the liquid crystal panel and the optical film is smaller, the glass light guide plate is thinner than the existing plastic light guide plate, the thickness of the backlight module is reduced as a whole, the whole structure is ultrathin, the narrow-edge effect is achieved, the cost is low, and the appearance is exquisite; the glass is used as a backlight main body structure, and is used as an appearance structure of a television or a display, the glass is used as a light guide material to be attached to a glass backboard, meanwhile, a pattern is sprayed on the glass backboard, then reflection paper with back glue is attached to the backboard, when a backlight strip is lighted, a part of light penetrates the reflection paper, the pattern on the glass backboard is highlighted, the display is more attractive after the lighting, and then a liquid crystal panel is attached to the light guide plate.

Further, at the upper end of the backlight module, the edge part of the glass light guide plate is coated with an edge-covering adhesive tape, an adhesive tape is filled between the edge-covering adhesive tape and the reflective paper, a gap between the liquid crystal panel and the edge-covering adhesive tape is filled with double-sided foam adhesive, and the top parts of the frame, the edge-covering adhesive tape, the reflective paper and the glass backboard are filled with double-sided foam adhesive.

Further, the cross-section of front bezel is L shape, including horizontal bottom plate and vertical curb plate, horizontal bottom plate is provided with the fixture block, and the backshell is provided with the card hole with fixture block joint, and vertical curb plate is provided with the fastener that supports and block backlight unit.

Further, the frame is a metal frame or a plastic frame.

The implementation of the backlight module with the glass light guide plate and the spray-painted glass backboard attached has the beneficial effects that:

through structural change, by original iron backplate, fixed structure spare, lamp strip, reflection paper, plastic light guide plate, optics diaphragm, center, LCD panel and preceding frame (face frame), change into glass backplate, take reflection paper, glass light guide plate, optics diaphragm and the LCD panel of gum layer, peripheral side laminating frame protection simultaneously to realize glass light guide plate and glass backplate laminating structure, spray pattern improves the outward appearance exquisite degree simultaneously. The middle frame structure is canceled, so that the distance between the liquid crystal panel and the optical film is smaller, the glass light guide plate is thinner than the existing plastic light guide plate, the thickness of the backlight module is reduced as a whole, and the whole structure is ultrathin.

Drawings

FIG. 1 is a cross-sectional view of a backlight module according to the prior art;

fig. 2 is a first view perspective structure diagram of a backlight module according to an embodiment of the present utility model;

fig. 3 is a right-view structure diagram of a backlight module according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional structural view for the portion A in FIG. 3;

fig. 5 is a first view explosion diagram of a backlight module according to an embodiment of the present utility model;

fig. 6 is a second view explosion diagram of the backlight module according to the embodiment of the utility model;

fig. 7 is a second view perspective structure diagram of a backlight module according to an embodiment of the present utility model;

FIG. 8 is a schematic diagram of a spray painting area of a glass back plate according to an embodiment of the present utility model;

fig. 9 is an exploded view of a backlight module according to an embodiment of the present utility model;

fig. 10 is a sectional structural view for B in fig. 9.

In the figure: 1. a liquid crystal panel; 2. a front frame; 3. an optical film; 4. a plastic light guide plate; 5. a light bar; 6. reflection paper; 7. an iron backboard; 8. a plastic middle frame; 9. a frame; 10. double-sided foam rubber; 11. edge-wrapping adhesive tape; 12. a reflective paper backing adhesive layer; 13. laminating adhesive; 21. a horizontal bottom plate; 22. a vertical side plate; 211. a clamping block; 221. a clamping hole; 221. a clamping piece; 41. a glass light guide plate; 61. a reflective paper backing adhesive layer; 71. a glass back plate; 72. a metal heat sink; 711. and (5) an inkjet printing area.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 2 to 8, a backlight module with a glass light guide plate and a spray-painting type glass back plate is disclosed, which comprises a liquid crystal panel 1, a glass light guide plate 41 and an optical film 3 arranged between the liquid crystal panel and the glass light guide plate 41, wherein the optical film 3 arranged above the glass light guide plate 41 plays roles of uniform light and converging a large angle, the bottom of the glass light guide plate 41 is provided with a light bar 5 for providing a light source, the rear side of the glass light guide plate 41 is provided with a reflective paper 6, the rear side of the reflective paper 6 is attached to the glass back plate 71 through a back adhesive layer thereof, the outside of the light bar 5 is wrapped with a metal radiator 72, the metal radiator 72 extends upwards to cover the lower part of the glass back plate 71, the outside of the metal radiator 72 is provided with a back shell, a circuit board is arranged between the back shell and the metal radiator 72, the upper, left and right surrounding sides of the backlight module are provided with a frame 9, the front side of the backlight module is respectively provided with a front frame 2, the outer side of the glass back plate 71 is provided with a spray-painting area 711, and the spray-painting area is sprayed with patterns. Wherein the frame 9 is a metal frame or a plastic frame.

Compared with the existing backlight module, the structure of the middle frame is canceled, so that the distance between the liquid crystal panel 1 and the optical film 3 is smaller, the glass light guide plate 41 is thinner than the existing plastic light guide plate 4, the thickness of the backlight module is reduced as a whole, the whole structure is ultrathin, the narrow-edge effect is achieved, the cost is low, and the appearance is exquisite; the glass is used as a backlight main body structure and is used as an appearance structure of a television or a display, the glass is used as a light guide material to be attached to the glass back plate 71, meanwhile, a pattern is sprayed on the glass back plate 71, then the reflection paper 6 with back glue is attached to the back plate, when the backlight strip 5 is lighted, a part of light penetrates through the reflection paper, the pattern on the glass back plate 71 is highlighted, the display is more attractive after the lighting, and then the liquid crystal panel 1 is attached to the light guide plate, so that the existing backlight mode is changed, the materials and the procedures are saved, the general product form of the backlight source is realized, and the backlight module can be applied to the display product design of all side light type backlight modules.

Referring to fig. 3 and 4, at the upper end of the backlight module, the edge portion of the glass light guide plate 41 is covered with the wrapping tape 11, the laminating adhesive 13 is filled between the wrapping tape 11 and the reflective paper 6, the gap between the liquid crystal panel 1 and the wrapping tape 11 is filled with the double-sided foam adhesive 10, and the top portions of the frame 9, the wrapping tape 11, the reflective paper 6 and the glass back plate 71 are filled with the double-sided foam adhesive 10, so as to form a firm and stable connection structure.

Referring to fig. 9 and 10, the cross section of the front frame 2 is L-shaped, and includes a horizontal bottom plate 21 and a vertical side plate 22, the horizontal bottom plate 21 is provided with a clamping block 211, the rear shell is provided with a clamping hole 221 clamped with the clamping block 211, and the vertical side plate 22 is provided with a clamping piece 221 for supporting and clamping the backlight module.

Preferably, the metal radiator 72 is made of an aluminum profile, and the aluminum profile has an excellent heat dissipation effect.

The assembly mode uses the glass backboard 71 as a main body structure, then the reflection paper 6 of the whole back glue is attached, then the glass light guide plate 41 is attached by dispensing, then the optical film 3 is assembled, then the metal radiator 72 and the lamp strip 5 are assembled, then the liquid crystal panel 1 made of glass is fixed by attaching the double-sided foam glue 10, and then the frame 9 is externally attached, so that the main body is three-piece glass ultrathin, the cost is low, and the assembly mode can be used for manufacturing display products of TVs and displays with exquisite appearance.

The implementation of the utility model has the beneficial effects that:

through changing backlight unit structure, by original iron backplate, fixed structure spare, lamp strip, reflection paper, plastic light guide plate, optics diaphragm, center, LCD panel and preceding frame, change into glass backplate, take the reflection paper of gum layer, the glass light guide plate of edge rubber coating area shading, two-sided foam gum, optics diaphragm and LCD panel, outside laminating frame protection simultaneously to realize glass light guide plate and glass backplate laminating structure, the spray pattern improves the exquisite degree of outward appearance simultaneously. The glass light guide plate has higher conversion rate, saves cost, solves the problem of easy deformation caused by heating, and has longer service life. By canceling the middle frame structure, the distance between the liquid crystal panel and the optical film is smaller, the glass light guide plate is thinner than the existing plastic light guide plate, and the thickness of the backlight module is reduced as a whole, so that the whole structure is ultrathin.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (4)

1. The utility model provides a backlight unit of glass light guide plate and laminating of air brushing formula glass backplate, its characterized in that includes liquid crystal panel (1) and glass light guide plate (41) and sets up and be provided with optical diaphragm (3) between the two, the bottom of glass light guide plate (41) is provided with lamp strip (5) that are used for providing the light source, the rear side of glass light guide plate (41) is provided with reflection paper (6), the rear side of reflection paper (6) has glass backplate (71) through its gum layer laminating, the outside parcel of lamp strip (5) has metal radiator (72), the lower part of metal radiator (72) upwards extends cladding glass backplate (71), the outside of metal radiator (72) is provided with backshell (14), be provided with circuit board (15) between backshell (14) and the metal radiator (72), the last surrounding, left side and right side of backlight unit is provided with frame (9), the front side of backlight unit is provided with preceding frame (2) respectively, the outside air brushing of glass backplate (71) pattern.

2. The backlight module of claim 1, wherein, at the upper end of the backlight module, the edge of the glass light guide plate (41) is covered with an edge covering adhesive tape (11), an adhesive tape (13) is filled between the edge covering adhesive tape (11) and the reflective paper (6), a gap between the liquid crystal panel (1) and the edge covering adhesive tape (11) is filled with a double-sided foam adhesive (10), and the tops of the frame (9) and the edge covering adhesive tape (11), the reflective paper (6) and the glass back plate (71) are filled with the double-sided foam adhesive (10).

3. The backlight module of claim 2, wherein the cross section of the front frame (2) is L-shaped and comprises a horizontal bottom plate (21) and a vertical side plate (22), the horizontal bottom plate (21) is provided with a clamping block (211), the rear shell (14) is provided with a clamping hole (141) clamped with the clamping block (211), and the vertical side plate (22) is provided with a clamping piece (221) for supporting and clamping the backlight module.

4. A backlight module according to claim 3, wherein the frame (9) is a metal frame or a plastic frame.