CN208654501U - Liquid crystal display die set - Google Patents

Abstract

The utility model discloses a kind of liquid crystal display die sets, comprising: backlight module and the liquid crystal display above the backlight module；The backlight module includes glue frame and light guide plate and LED light bar in the glue frame；The glue frame includes bottom plate and the side plate that is connected with the bottom plate；The light guide plate and LED light bar are respectively positioned on the bottom plate；The light guide plate includes ontology and the extension that is connected with ontology, and the ontology is concordant with the upper surface of the extension, and the thickness of the ontology is greater than the thickness of the extension；The LED light bar is located at the lower section of the extension.The case where liquid crystal display die set of the utility model is not in the whiting of liquid crystal display fringe region, display brightness is uniform, has preferable product quality.

Description

Liquid crystal display die set

Technical field

The utility model relates to field of display technology more particularly to a kind of liquid crystal display die sets.

Background technique

Liquid crystal display device (Liquid Crystal Display, LCD) has thin fuselage, power saving, radiationless etc. numerous Advantage is widely used, such as: mobile phone, personal digital assistant (PDA), digital camera, computer screen and notes This computer screen etc..

Liquid crystal display device on existing market is largely backlight liquid crystal display device comprising shell is set to shell Intracorporal liquid crystal display panel and the backlight module being set in the housing (Backlight module).The structure of traditional liquid crystal display panel is By a colored filter substrate (Color Filter), a thin-film transistor array base-plate (Thin Film Transistor Array Substrate, TFT Array Substrate) and one it is configured at liquid crystal layer (Liquid between two substrates Crystal Layer) it is constituted, its working principle is that controlling liquid crystal layer by applying driving voltage on two panels glass substrate Liquid crystal molecule rotation, by the light refraction of backlight module come out generate picture.

Since liquid crystal display panel itself does not shine, need the light source provided by backlight module normally to show image, therefore, Backlight module becomes one of the key component of liquid crystal display device.Backlight module is divided into side according to the difference of light source incidence position and enters Formula backlight module and down straight aphototropism mode set.Down straight aphototropism mode set is by illuminating source (such as cathode-luminescence fluorescent tube (Cold Cathode Fluorescent Lamp, CCFL) or light emitting diode (Light Emitting Diode, LED) be arranged in liquid Crystal panel rear directly forms area source and is supplied to liquid crystal display panel.And side entrance back module is by backlight LED lamp bar (Light bar) is set at the back plate edges at liquid crystal display panel side rear, and the light that LED light bar issues is from light guide plate (Light Guide Plate, LGP) incidence surface of side enters light guide plate, it is projected after reflection and diffusion from light guide plate light-emitting surface, then pass through By optical diaphragm group, liquid crystal display panel is supplied to form area source.

Fig. 1 is the structural schematic diagram of existing liquid crystal display die set, as shown in Figure 1, existing liquid crystal display die set includes: Backlight module 100 and the liquid crystal display 200 above the backlight module 100；The backlight module 100 includes glue frame 110, the light guide plate 120 in the glue frame 110, the upper surface set on 120 side of light guide plate and with light guide plate 120 The LED light bar 130 being substantially flush.

The backlight module 100 is side entrance back module, and in the backlight module 100, LED light bar 130 is close to liquid crystal Display screen 200 is arranged, therefore liquid crystal display 200 can directly be influenced by 130 temperature of LED light bar, is heated since liquid crystal has Unstable characteristic, therefore the fringe region of liquid crystal display 200 will appear whiting and cause the situation of display brightness unevenness (as schemed Shown in 2).

In addition, to reach better visual effect, the liquid crystal display 200 needs to arrange in pairs or groups the backlight module of high brightness 100 reach display effect high-definition, since the backlight module 100 of high brightness needs the quantity of LED light more, The temperature of LED light bar 130 is also corresponding higher, to aggravate the situation of liquid crystal display 200 display brightness unevenness.

Utility model content

It is not in that liquid crystal display fringe region is general the purpose of this utility model is to provide a kind of liquid crystal display die set White situation, display brightness is uniform, superior product quality.

To realize above purpose of utility model, the utility model provides a kind of liquid crystal display die set, comprising: backlight module with And the liquid crystal display above the backlight module；

The backlight module includes glue frame and light guide plate and LED light bar in the glue frame；

The glue frame includes bottom plate and the side plate that is connected with the bottom plate；The light guide plate and LED light bar are respectively positioned on institute It states on bottom plate；

The light guide plate includes ontology and the extension that is connected with ontology, the upper surface of the ontology and the extension Concordantly, and the thickness of the ontology be greater than the extension thickness；The LED lamp bar is located at the lower section of the extension.

As a further improvement of the above technical scheme, the liquid crystal display die set further include be set to the backlight module with Foam-rubber cushion between the liquid crystal display.

As a further improvement of the above technical scheme, the foam-rubber cushion is in frame shape, corresponding to the liquid crystal display Fringe region setting.

As a further improvement of the above technical scheme, the foam-rubber cushion with a thickness of 0.3mm-0.8mm.

As a further improvement of the above technical scheme, the foam-rubber cushion with a thickness of 0.5mm.

As a further improvement of the above technical scheme, the upper surface of the foam-rubber cushion has adhesive-layer, the foam-rubber cushion It is fixedly connected, is equipped between the lower surface of the foam-rubber cushion and the backlight module double with the liquid crystal display by adhesive-layer Face glue, the foam-rubber cushion are fixedly connected by double-sided adhesive with the backlight module.

As a further improvement of the above technical scheme, the color of the upper and lower surface of the double-sided adhesive is black.

As a further improvement of the above technical scheme, in the backlight module, the width of the LED light bar is 3mm- 3.5mm。

As a further improvement of the above technical scheme, the width of the lamp bar is 3.3mm.

As a further improvement of the above technical scheme, the backlight module further includes being set to the bottom plate and the leaded light Reflector plate between plate and the diffusion sheet set on the light guide plate upper surface.

The utility model has the beneficial effects that

The utility model significantly reduces the heat pair of LED lamp bar by the way that LED light bar to be set on the bottom plate of glue frame The influence of liquid crystal display；

Further, by the way that foam-rubber cushion is being arranged between backlight module and liquid crystal display, the back is further decreased Adverse effect of the heat of optical mode group to the liquid crystal display；

Further, it by the way that black glue is arranged between foam-rubber cushion and backlight module, is played and is blocked using the black glue The effect of edge light leakage can further improve the case where available liquid crystal display screen fringe region whitens；

Further, by reducing the width of LED light bar, increase the distance between LED light bar and the ontology of light guide plate, energy The uniformity for the light that enough incidence surfaces for further promoting light conducting plate body receive, to promote the uniform in light emission of backlight module Degree, and then promote the display uniformity of liquid crystal display.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to the scope of the utility model as.

Fig. 1 is the structural schematic diagram of existing liquid crystal display die set；

Fig. 2 is that the fringe region of existing liquid crystal display die set the schematic diagram of whiting situation occurs；

Fig. 3 is the structural schematic diagram of the first embodiment of the utility model liquid crystal display die set；

Fig. 4 is the structural schematic diagram of the second embodiment of the utility model liquid crystal display die set；

Fig. 5 is the structural schematic diagram of the 3rd embodiment of the utility model liquid crystal display die set；

Fig. 6 A is the positional diagram of LED light bar and light guide plate in existing liquid crystal display die set；

Fig. 6 B is the position of the ontology of LED light bar and light guide plate in the liquid crystal display die set 3rd embodiment of the utility model Relation schematic diagram；

Fig. 7 is the schematic diagram of the display situation of the 3rd embodiment of the liquid crystal display die set of the utility model.

Main element symbol description:

Backlight module；Glue frame；111- bottom plate；112- side plate；Light guide plate；121- sheet Body；122- extension；13/130-LED lamp bar；14- reflector plate；15- diffusion sheet；20- liquid crystal display；30- foam-rubber cushion；40- Double-sided adhesive；500- black and white glue.

Specific embodiment

Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities Apply example.

The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be matched with a variety of different It sets to arrange and design.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to below The range of claimed invention is limited, but is merely representative of the selected embodiment of the utility model.It is practical based on this Novel embodiment, those skilled in the art's every other implementation obtained without making creative work Example, fall within the protection scope of the utility model.

It hereinafter, can the term " includes " used in the various embodiments of the utility model, " having " and its homologous Word is meant only to indicate special characteristic, number, step, operation, the combination of element, component or aforementioned item, and is understood not to The combined presence or increasing of one or more other features, number, step, operation, element, component or aforementioned item is excluded first A possibility that adding the combination of one or more features, number, step, operation, element, component or aforementioned item.

In the various embodiments of the utility model, statement " A or/and B " includes any combination of the text listed file names with Or all combinations, it may include A, may include B or may include A and B both.

In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ", The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", " transverse direction ", "top", "bottom", "inner", "outside" be based on Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair The limitation of the utility model.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and should not be understood as referring to Show or imply relative importance.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be It can be combined in any suitable manner in any one or more embodiment or examples.

In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection, the connection being also possible to inside two elements can be It is connected directly, can also indirectly connected through an intermediary, for the ordinary skill in the art, it can be according to specific Situation understands the concrete meaning of above-mentioned term.Unless otherwise defined, otherwise all terms used herein (including technical term With scientific term) with identical as the various normally understood meanings of embodiment one skilled in the art of the utility model Meaning.The term (term such as limited in the dictionary generally used) is to be interpreted as having and lead in the relevant technologies The identical meaning of situational meaning in domain and it will be interpreted as having Utopian meaning or meaning too formal, unless It is clearly defined in the various embodiments of the utility model.

Fig. 3 is the structural schematic diagram of the first embodiment of the utility model liquid crystal display die set, and as shown in Fig. 3, this first Embodiment provides a kind of liquid crystal display die set, comprising: backlight module 10 and the liquid crystal above the backlight module 10 Display screen 20；

The backlight module 10 includes glue frame 11 and light guide plate 12 and LED light bar 13 in the glue frame 11；

The glue frame 11 includes bottom plate 111 and the side plate 112 being connected with the bottom plate 111；The light guide plate 12 and LED Lamp bar 13 is respectively positioned on the bottom plate 111；

The light guide plate 12 includes ontology 121 and the extension 122 that is connected with ontology 121, the ontology 121 with it is described The upper surface of extension 122 is concordant, and the thickness of the ontology 121 is greater than the thickness of the extension 122；The LED light Item 13 is located at the lower section of the extension 122.

Optionally, the 1/4~1/2 of the thickness with a thickness of the ontology 121 of the extension 122.

Specifically, the liquid crystal display 20 be PMVA (Passive Matrix Vertical Alignment, passively Matrix vertical orientation) mode liquid crystal display, the liquid crystal display of PMVA mode is very big by the torsional mode for changing liquid crystal The transmitance for reducing off state, realize black background color and high contrast, therefore the liquid crystal display of PMVA mode has view Feel the advantage that clarity is high, visual angle is wide.

It could be aware that, the backlight module 10 in the liquid crystal display die set of the utility model is a kind of side entrance back mould Group.

As shown in Figure 1, LED light bar 130 is usually located at the upper half of backlight module 100 in existing backlight module 100 Point, and be directly close to liquid crystal display 200, the liquid crystal is transferred directly to so as to cause the heat in backlight module 100 In display screen 200, liquid crystal display 200 is caused the uneven situation of display occur.

And in the utility model, as shown in figure 3, LED light bar 13 is located at the lower half portion of backlight module 10, LED light bar 13 It cannot directly be in contact with liquid crystal display 20, also, since LED light bar 13 is directly arranged on the bottom plate 111, it is described A part of heat of LED light bar 13 can also be conducted by the bottom plate 111, to alleviate the heat of LED light bar 13 Influence to the liquid crystal display 20.

In the utility model, the extension 122 of the light guide plate 12 has been correspondingly arranged above the LED light bar 13, it is described Extension 122 can receive some light of the LED light bar 13 and be passed in the ontology 121 of the light guide plate 12, To promote the light utilization of the LED light bar 13.

Specifically, the backlight module 10 further includes set on the reflector plate between the bottom plate 111 and the light guide plate 12 14 and the diffusion sheet 15 set on 12 upper surface of light guide plate.

Fig. 4 is the structural schematic diagram of the second embodiment of the utility model liquid crystal display die set, and as shown in Fig. 4, this second Embodiment provides a kind of liquid crystal display die set, and it further includes being set to the backlight that compared with first embodiment, difference place, which is, Foam-rubber cushion 30 between mould group 10 and the liquid crystal display 20, the foam-rubber cushion 30 are in frame shape, correspond to the liquid crystal display The fringe region setting of screen 20.

The utility model can be avoided described by the way that foam-rubber cushion 30 is arranged between backlight module 10 and liquid crystal display 20 Backlight module 10 is directly contacted with the liquid crystal display 20, is increased between the backlight module 10 and the liquid crystal display 20 Distance can be avoided the back by forming certain intervals between the backlight module 10 and the liquid crystal display 20 The heat of optical mode group 10 is quickly transferred in the liquid crystal display 20, reduces the heat of the backlight module 10 to the liquid crystal The adverse effect of display screen 20.

Specifically, the foam-rubber cushion 30 with a thickness of 0.3mm-0.8mm, such as 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm etc., preferably 0.5mm.

Specifically, the upper surface of the foam-rubber cushion 30 has adhesive-layer (not shown), the foam-rubber cushion 30 passes through adhesive-layer It is fixedly connected with the liquid crystal display 20, double-sided adhesive is equipped between the lower surface and the backlight module 10 of the foam-rubber cushion 30 40, the foam-rubber cushion 30 is fixedly connected by double-sided adhesive 40 with the backlight module 10.

Specifically, the color of the upper and lower surface of the double-sided adhesive 40 is black (the i.e. described double-sided adhesive 40 is black glue), Since the position of the double-sided adhesive 40 corresponds to the fringe region of the liquid crystal display 20, edge leakage is blocked so as to play The effect of light.

As shown in Figure 1, in existing liquid crystal display die set, fringe region and the liquid crystal display 200 of backlight module 100 Fringe region is bonded by black and white glue 500 (upper layer is black layer, and lower layer is white layer), due to the following table mask of black and white glue 500 There is reflecting effect, therefore be easy to appear the fringe region light leakage of backlight module 100, this is also to lead to existing liquid crystal display One factor of 200 fringe regions whiting.

Black and white glue 500 in available liquid crystal display module is replaced with black glue by the utility model, due under black glue Surface does not have reflecting effect, therefore the case where be not in the fringe region light leakage of backlight module 10, improves liquid crystal display The case where shielding the whiting of 20 fringe regions.

Fig. 5 is the structural schematic diagram of the 3rd embodiment of the utility model liquid crystal display die set, as shown in Fig. 5, the third Embodiment provides a kind of liquid crystal display die set, and compared with second embodiment, difference place is, the width of the LED light bar 13 Degree reduction, in the 3rd embodiment, the width of the LED light bar 13 is 3mm-3.5mm, for example, 3mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm etc., preferably 3.3mm.

As shown in Figure 6A, in existing backlight module 100, the width of LED light bar 130 is usually 4.3mm, such as Fig. 6 B institute Show, for the prior art shown in Fig. 6 A, the liquid crystal display die set of the 3rd embodiment significantly reduces LED light bar 13 Width, in the case where the width of glue frame 11 is certain, when the reduced width of the LED light bar 13, be located at the LED light bar The width w of buffer area between 13 and the ontology 121 of the light guide plate 12 becomes larger, and (ontology 121 of the light guide plate 12 in Fig. 6 B is i.e. The light guide plate 120 being equivalent in Fig. 6 A), when the width w of the buffer area is bigger, the incidence surface of the ontology 121 of light guide plate 12 is connect The uniformity of the light of receipts is higher, so that the outgoing light homogeneity of the backlight module 10 is higher, and then the liquid crystal display 20 Display brightness it is more uniform.

Fig. 7 is the schematic diagram of the display situation of the 3rd embodiment of the liquid crystal display die set of the utility model, can from Fig. 7 To find out, the fringe region of the liquid crystal display die set of the 3rd embodiment is there is no the region of whiting, and display brightness is uniform, product Quality is good.

In conclusion in the utility model first embodiment, by the bottom plate 111 that LED light bar 13 is set to glue frame 11 On, significantly reduce influence of the heat of LED light bar 13 to liquid crystal display 20；

In the utility model second embodiment, by the way that foam-rubber cushion is arranged between backlight module 10 and liquid crystal display 20 30, adverse effect of the heat of the backlight module 10 to the liquid crystal display 20 can be further decreased；

Further, it by the way that black glue is arranged between foam-rubber cushion 30 and backlight module 10, is played using the black glue The case where blocking the effect of edge light leakage, capable of further improving the whiting of 20 fringe region of available liquid crystal display screen；

In the utility model 3rd embodiment, by reducing the width of LED light bar 13, increase LED lamp bar 13 and light guide plate The distance between 12 ontology 121 can further promote the uniform of the light that the incidence surface of 12 ontology 121 of light guide plate receives Degree to promote the outgoing light homogeneity of backlight module 10, and then promotes the display uniformity of liquid crystal display 20.

By one of the above or a variety of improvement, the utility model can be in the number for being changed without LED light, not reducing LED light Amount, in the case where not reducing the brightness of LED light bar 130, realization solves existing 200 display brightness of liquid crystal display from structure Uneven problem.

It will be appreciated by those skilled in the art that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, module in attached drawing or Process is not necessarily implemented necessary to the utility model.

It will be appreciated by those skilled in the art that the module in device in implement scene can be described according to implement scene into Row is distributed in the device of implement scene, can also be carried out corresponding change and is located at the one or more dresses for being different from this implement scene In setting.The module of above-mentioned implement scene can be merged into a module, can also be further split into multiple submodule.

The foregoing is merely the preferable implementation examples of the utility model, are not intended to limit the utility model, it is all Within the spirit and principles of the utility model, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on Within the protection scope of type.

Claims (10)

1. a kind of liquid crystal display die set characterized by comprising backlight module and the liquid crystal above the backlight module Display screen；

The backlight module includes glue frame and light guide plate and LED light bar in the glue frame；

The glue frame includes bottom plate and the side plate that is connected with the bottom plate；The light guide plate and LED light bar are respectively positioned on the bottom On plate；

The light guide plate includes ontology and the extension that is connected with ontology, and the upper surface of the ontology and the extension is flat Together, and the thickness of the ontology be greater than the extension thickness；The LED light bar is located at the lower section of the extension.

2. liquid crystal display die set as described in claim 1, which is characterized in that further include being set to the backlight module and the liquid Foam-rubber cushion between crystal display screen.

3. liquid crystal display die set as claimed in claim 2, which is characterized in that the foam-rubber cushion is in frame shape, corresponds to the liquid The fringe region of crystal display screen is arranged.

4. liquid crystal display die set as claimed in claim 2, which is characterized in that the foam-rubber cushion with a thickness of 0.3mm-0.8mm.

5. liquid crystal display die set as claimed in claim 4, which is characterized in that the foam-rubber cushion with a thickness of 0.5mm.

6. liquid crystal display die set as claimed in claim 2, which is characterized in that the upper surface of the foam-rubber cushion has adhesive-layer, The foam-rubber cushion is fixedly connected by adhesive-layer with the liquid crystal display, the lower surface of the foam-rubber cushion and the backlight module Between be equipped with double-sided adhesive, the foam-rubber cushion is fixedly connected by double-sided adhesive with the backlight module.

7. liquid crystal display die set as claimed in claim 6, which is characterized in that the color of the upper and lower surface of the double-sided adhesive is Black.

8. liquid crystal display die set as described in claim 1, which is characterized in that in the backlight module, the width of the LED light bar Degree is 3mm-3.5mm.

9. liquid crystal display die set as claimed in claim 8, which is characterized in that the width of the lamp bar is 3.3mm.

10. liquid crystal display die set as described in claim 1, which is characterized in that the backlight module further includes being set to the bottom Reflector plate between plate and the light guide plate and the diffusion sheet set on the light guide plate upper surface.