CN211043889U

CN211043889U - Backlight module and display device with same

Info

Publication number: CN211043889U
Application number: CN201922231573.6U
Authority: CN
Inventors: 祁亚洲; 陶闵参; 徐勇
Original assignee: Jiangsu TSD Electronics Technology Co Ltd
Current assignee: Jiangsu TSD Electronics Technology Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-07-17
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses a concretely designs and shows technical field, discloses a backlight unit, including the backplate, fit with the lid preceding shell on the backplate is still including locating the backplate with display module between the preceding shell, display module includes the light guide plate, and locates diffuse reflection spare on the non-plain noodles of light guide plate. Through set up the diffuse reflection spare on the non-play plain noodles at the light guide plate, at backlight unit during operation, can start the diffuse reflection of light, realize the function of leaded light, the function of electromagnetic screen antenna panel has been replaced simultaneously, overcome and installed electromagnetic screen antenna panel and other display module's component parts installation error easily at backlight unit's in-process with electromagnetic screen antenna panel, light leak and finished product quality reduce, display device is thick defect when appearing showing.

Description

Backlight module and display device with same

Technical Field

The utility model relates to a show technical field, concretely relates to backlight unit and have this backlight unit's display device.

Background

At present in E L ED electromagnetic screen module, the electromagnetic screen antenna panel need place in E L ED backlight unit's reflective film below, assemble backlight unit's in-process with the electromagnetic screen antenna panel, because have multilayer structure range upon range of and install, it is wrong very easily with the component parts erection of electromagnetic screen antenna panel and other display module, the phenomenon that leads to the light leak during the demonstration and the problem that backlight unit finished product quality reduces, and this problem can only discover after E L ED electromagnetic screen module installation is accomplished usually, will lead to great waste and maintenance work load, and the electromagnetic screen antenna panel is thicker, lead to the display device thickness that possesses this backlight unit to increase.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming among the prior art and installing electromagnetic screen antenna panel at backlight unit's in-process easily with electromagnetic screen antenna panel and other display module's component part installation mistake, light leak and finished product quality reduce, the thick defect of display device when showing appear to provide a backlight unit and possess this backlight unit's display device.

A backlight module comprises a back plate, a front shell and a display assembly, wherein the front shell covers the back plate, the display assembly is arranged between the back plate and the front shell, and comprises a light guide plate and a diffuse reflection piece arranged on a non-light-emitting surface of the light guide plate.

Further, the diffuse reflection member is printed on the light guide plate.

Further, the diffuse reflection member is a conductive ink layer having a predetermined route.

Further, the conductive ink layer adopts nano-silver conductive ink.

Further, still include with the reflector plate that the light guide plate is connected, the reflector plate is located the downside of light guide plate, electrically conductive printing ink layer is located the reflector plate with between the light guide plate.

Furthermore, the display assembly further comprises a pair of diffusion sheets which are sequentially bonded on the other surface of the light guide plate, wherein the other surface is not provided with the conductive ink layer, and a brightness enhancement sheet is arranged on the pair of diffusion sheets.

Further, still include light emitting component, set up at least one side of light guide plate, the mounting groove has been seted up on the light guide plate, light emitting component is fixed in the mounting groove.

Further, the light emitting component comprises a point light emitting component, and the mounting grooves are a plurality of grooves which are uniformly distributed on one side of the light guide plate in a point shape.

Further, the light emitting assembly comprises a strip-shaped light emitting piece, and the mounting groove is a strip-shaped mounting groove.

A display device comprises the backlight module.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a pair of backlight module, including the backplate, fit with the lid preceding shell on the backplate, still including locating the backplate with display module between the preceding shell, display module includes the light guide plate, and locates diffuse reflection spare on the non-plain noodles of light guide plate. Through set up the diffuse reflection spare on the non-play plain noodles at the light guide plate, at backlight unit during operation, can start the diffuse reflection of light, realize the function of leaded light, the function of electromagnetic screen antenna panel has been replaced simultaneously, overcome and installed electromagnetic screen antenna panel and other display module's component parts installation error easily at backlight unit's in-process with electromagnetic screen antenna panel, light leak and finished product quality reduce, display device is thick defect when appearing showing.

2. The utility model provides an among the backlight unit, diffuse reflection spare is for having the electrically conductive printing ink layer of predetermined route. Establish to conductive ink layer through establishing the diffuse reflection spare, the reduction that can step forward when the installation is artifical, reduce the unusual condition of equipment, and reduce backlight unit's thickness, realize the function unification of light guide plate and antenna panel simultaneously, reduce material cost and manufacturing cost, backlight unit's product percent of pass has been improved, adopt simultaneously to set up printing ink earlier on the light guide plate, then carry out the mode of assembling, realized owing to there is printing ink when the equipment, thereby play the effect of mark, avoid installing the problem of makeing mistakes, the equipment time has been reduced.

3. The utility model provides a display device, include as above backlight unit. The display device adopts the backlight module, so that the display device has any one of the advantages of the backlight module.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a backlight module according to an embodiment of the present invention;

description of reference numerals:

1. a back plate; 2. a front housing; 3. a display component; 31. a light guide plate; 32. a diffuse reflection member;

33. a reflective sheet; 34. a diffusion sheet; 35. a brightness enhancement sheet; 36. a glass cover plate.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment of the present invention describes a display device, which can be a liquid crystal display device, wherein a backlight module is disposed in the display device for supplying sufficient light source with uniform brightness and distribution to enable the display device to normally display images,

in this embodiment, as shown in fig. 1, the display module includes a back plate 1 and a front shell 2, the front shell 2 covers the back plate 1, a display module 3 is further disposed before the back plate 1 and the front shell 2, the display module 3 is disposed between the back plate 1 and the front shell 2 to realize a light guiding function, wherein the back plate 1 and the front shell 2 may be made of metal, so that the weight of the whole device is increased, and the stability of the display device is improved.

In this embodiment, referring to fig. 1, the display module 3 includes a light guide plate 31 and a diffuse reflection element 32, the diffuse reflection element 32 is disposed on a non-light-emitting surface of the light guide plate 31, where the non-light-emitting surface refers to a side surface from which light is reflected, and by disposing the diffuse reflection element 32 on the non-light-emitting surface of the light guide plate 31, when the backlight module operates, diffuse reflection of light can be started to achieve a light guiding function, and the function of an electromagnetic screen antenna plate is replaced, so that the defects that the electromagnetic screen antenna plate is easily installed in the backlight module, the electromagnetic screen antenna plate is mistakenly installed with other components of the display module 3, light leakage occurs during display, the quality of a finished product is reduced, and the display device is thick are overcome, and further the light-emitting luminance and the uniformity of the light-emitting surface 31 of the light guide plate are improved, and the bright-dark interphase phenomenon of the conventional light guide plate 31 can be, the diffuse reflection member 32 is disposed to cover the light guide plate 31.

Specifically, the diffuse reflection member 32 is a conductive ink layer with a predetermined path, and is printed on the light guide plate 31 by a printing process, wherein the conductive ink layer may be a nano silver conductive ink layer, or may be other types of conductive ink layers, and the conductive effect may be achieved.

In this embodiment, the display module 3 further includes a reflective sheet 33 connected to the light guide plate 31, the reflective sheet 33 is disposed on the lower side of the light guide plate 31, and the conductive ink layer is disposed between the reflective sheet 33 and the light guide plate 31 to achieve the light reflection and guiding effects between the reflective sheet 33 and the light guide plate 31, specifically, after the conductive ink layer is printed on the light guide plate 31, the conductive ink layer is pressed and fixed with the reflective sheet 33 to form the pre-mounted display module 3, the reflective sheet 33 may be a transparent sheet made of an abrasion-resistant material, and one surface of the reflective sheet 33, which is far away from the diffuse reflection element 32, may be reflected.

In this embodiment, the display module 3 further includes a pair of diffusion sheets 34 sequentially bonded to the other surface of the light guide plate 31 without the conductive ink layer, a brightness enhancement sheet 35 is disposed on the pair of diffusion sheets 34, the brightness enhancement sheet 35 may be a brightness enhancement sheet 35 of 0-90 °, a glass cover plate 36 is disposed on the upper side of the front housing 2, and the glass cover plate 36 is bonded to the front housing 2.

In this embodiment, the lighting device 4 is further included, and the lighting device 4 is disposed on at least one side of the light guide plate 31, wherein a mounting groove (not shown in the drawings) is formed in the light guide plate 31, and then the lighting device is fixed in the mounting groove, and the lighting device is energized and then emits light.

Specifically, above-mentioned light-emitting component 4 can be a point light-emitting component, and above-mentioned mounting groove is for a plurality of recesses of the punctiform with this point light-emitting component shape adaptation, and this punctiform recess evenly distributed is in light guide plate 31 one side, and certainly also can set up the both sides at the leaded light with punctiform recess branch to realize improving the effect of luminosity, in this embodiment, point light-emitting component can be L ED lamp or other independent lamps, and the quantity of point light-emitting component carries out corresponding quantity's arrangement according to user's needs.

In a modified embodiment of the above light emitting assembly, the light emitting assembly 4 may also be a strip-shaped light emitting element, the corresponding mounting groove is a strip-shaped mounting groove, the strip-shaped light emitting element is mounted inside the strip-shaped mounting groove in a one-to-one correspondence manner, specifically, the strip-shaped light emitting element may be L ED light bulbs arranged in series, and the light bulbs are electrically connected with each other.

In this embodiment, light emitting component and external power source electric connection when installing inside the mounting groove, can adopt the mode of screw-up to fix, also can adopt sticky mode to fix.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides a backlight module, includes backplate (1), and the lid fits preceding shell (2) on backplate (1), its characterized in that still including locating backplate (1) with display module (3) between preceding shell (2), display module (3) include light guide plate (31), and locate diffuse reflection spare (32) on the non-plain noodles of light guide plate (31).

2. The backlight module according to claim 1, wherein the diffuse reflection member (32) is printed on the light guide plate (31).

3. The backlight module according to claim 2, wherein the diffuse reflection member (32) is a conductive ink layer having a predetermined route.

4. The backlight module as claimed in claim 3, wherein the conductive ink layer is made of nano-silver conductive ink.

5. The backlight module according to claim 3 or 4, further comprising a reflective sheet (33) connected to the light guide plate (31), wherein the reflective sheet (33) is disposed on the lower side of the light guide plate (31), and the conductive ink layer is disposed between the reflective sheet (33) and the light guide plate (31).

6. The backlight module as claimed in claim 5, wherein the display module (3) further comprises a pair of diffusion sheets (34) sequentially bonded to the other surface of the light guide plate (31) without the conductive ink layer, and a brightness enhancement sheet (35) is disposed on the pair of diffusion sheets (34).

7. The backlight module as claimed in claim 6, further comprising a light emitting assembly disposed on at least one side of the light guide plate (31), wherein the light guide plate (31) has a mounting groove formed therein, and the light emitting assembly is fixed in the mounting groove.

8. The backlight module according to claim 7, wherein the light emitting assembly (4) comprises spot light emitting members, and the mounting grooves are grooves uniformly distributed on one side of the light guide plate (31) in a spot shape.

9. The backlight module according to claim 7, wherein the light emitting assembly comprises a bar-shaped light emitting member, and the mounting groove is a bar-shaped mounting groove.

10. A display device comprising a backlight module according to any one of claims 1 to 9.