CN206193411U - Adjust module structure of LGP displacement - Google Patents

Abstract

The utility model discloses an adjust module structure of LGP displacement, including LGP and plastic frame, plastic frame one side adjacent with LGP is provided with a recess, inlays a telescopic kicking block in the recess, telescopic kicking block includes base and kicking block, and the opening that the base upper end was followed to the kicking block stretches out, is connected with the base through telescopic elastomeric element. The utility model discloses adjust module structure of LGP displacement can save LGP fixed adhesive tape, reduces attached man -hour and avoids attached bad, adjust the displacement of LGP in the luminous direction of LED to help LGP displacement set back, under the condition that does not influence the LGP the thermal expansion space, the LCM module optics phenomenon on the low side or not enough that from this appears is avoided in the reservation clearance of again can the set back guaranteeing LGP and LED light emitting area, guarantees LCM module global brightness, simultaneously this module structure conveniently assemble, disassemble, maintenance and analysis, avoid leading to LGP damaged owing to disassemble fixed adhesive tape.

Description

A kind of modular structure of regulation LGP displacements

Technical field

The utility model is related to the LGP in LCD screen backlight structure, and in particular to a kind of module of regulation LGP displacements Structure.

Background technology

In current LCD screen backlight structure, LGP (light guide plate) incident sides in order to avoid adjacent LED (because in big work( Heat is larger during rate LED uses, is easily damaged LGP), generally fixed reserved part space can set block in structure, Ensure this gap, as shown in Figure 5；LGP light emission sides are generally fixed with two-sided tape, expansion are reserved between backboard or glue frame empty Between.During LCM (LCD display modules) lighting or when external high temperature environment is used, LGP expanded by heating drives two-sided tape to light extraction Side displacement.But after temperature recovers normal, because LGP is different from adhesive tape constriction coefficient, LGP can not whole original positions of displacements recovery Put, cause the gap of LGP and LED to increase, optical brightness decay.Additionally, in the vertical LGP of group, causing due to there is assembly failure LGP and LED gaps heterogeneity phenomenon will also result in optical brightness and have difference, if this gap is excessive, optical brightness can it is relatively low or Not enough situation.When analysis is disassembled in maintenance, due to there is two-sided tape to fix, LGP inconvenience is disassembled, be easily destroyed LGP, particularly Reliability experiment after backlight, adhesive tape it is sticky larger, disassemble more inconvenient.

Utility model content

Utility model purpose：For the problem that prior art is present, the utility model provides a kind of mould of regulation LGP displacements Group structure.The modular structure can solve LGP displacement problems, displacements of the LGP in LED light emission directions be adjusted, to help LGP displacements Set back, i.e., do not influence the expanded by heating of LGP, in turn ensure that the gap between LGP and LED, it is to avoid the LCM modules for thus occurring The relatively low or not enough phenomenon of optics, it is ensured that LCM module overall brightnesses, while ease of assembly and disassembling.

Technical scheme：To achieve these goals, such as a kind of module knot of regulation LGP displacements described in the utility model Structure, including LGP and plastic frame, the plastic frame side adjacent with LGP are provided with a groove, and a Telescopic top is inlayed in groove Block；The telescopic jacking block includes base and jacking block, and jacking block stretches out from the opening of base upper end, by telescopic elastomeric element It is connected with base.

Preferably, there is the groove internal thread to be used cooperatively with the external screw thread of base outer wall.Groove and base all have There is helicitic texture, convenient whole telescopic jacking block is inlayed into plastic frame.

Preferably, the top diameter of the jacking block is less than base diameter, in a trapezoidal shape.Jacking block top diameter Less than the trapezoidal shape of base diameter, facilitate jacking block displacement movement in base, while facilitating the assembling and dismounting of glue frame.

Preferably, a diameter of 1-2mm at the top of the jacking block.For middle size LMC modules, LGP thickness about 2mm- 3mm, the top diameter of this jacking block of arranging in pairs or groups can be in 1-2mm, it is ensured that single jacking block lifting surface area, it is to avoid too small to form point contact, shadow Ring picture display quality.

Preferably, the elastomeric element is spring.

Operation principle：Telescopic jacking block is mounted in the groove of plastic frame, LGP light emission sides, LGP expanded by heating is withstood When, compression spring realizes expansion；During temperature reduction, LGP is pushed up go back to original place by the elastic force of spring, it is ensured that original gap.

Beneficial effect：Compared with prior art, the utility model has the following advantages that：1st, the utility model adjusts LGP The modular structure of shifting saves LGP fixation adhesive tapes, reduces and attaches man-hour and avoid attaching bad；2nd, regulation LGP is in LED light emission directions Displacement, to help LGP displacements to set back, in the case where LGP expanded by heating space is not influenceed, can set back guarantor again The preset clearance of card LGP and LED light-emitting areas, it is to avoid the relatively low or not enough phenomenon of the LCM module optics that thus occurs, it is ensured that LCM Module overall brightness；3rd, ease of assembly, disassemble, repair and analyze, it is to avoid cause LGP damaged due to disassembling fixation adhesive tape.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model modular structure；

Fig. 2 is the schematic diagram of modular structure expanded by heating displacement；

Fig. 3 is the structural representation of telescopic jacking block in the utility model；

Fig. 4 is the schematic diagram of telescopic jacking block compressive state；

Fig. 5 is the structural representation of modular structure in the prior art.

Specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Embodiment

As shown in figure 1, a kind of modular structure of regulation LGP displacements includes LGP 1 and plastic frame 2, the modeling adjacent with LGP1 The side of glue frame 2 is provided with a groove 3, and a telescopic jacking block is inlayed in groove 3；As shown in Figures 3 and 4, telescopic jacking block bag Base 4 and jacking block 5 are included, jacking block 5 stretches out from the opening of the upper end of base 4, by the spring of telescopic elastomeric element 6 and the phase of base 4 Connection.The outer wall of base 4 has external screw thread, and groove 3 has internal thread, and internal and external threads are used cooperatively and facilitate telescopic jacking block to install； The top diameter of jacking block 5 is less than base diameter, in a trapezoidal shape, a diameter of 1-2mm at the top of jacking block 5.

As shown in Fig. 2 when LCM lightings or when external high temperature environment is used, during LGP expanded by heating, compression spring is realized Expansion；During temperature reduction, LGP is pushed up go back to original place by the elastic force of spring, is become shown in Fig. 1.

For large-sized LCM modules, the position of its telescopic jacking block and distribution, according in module large scale LGP it is outer The difference of molded dimension and thickness, can take different modes.If large-sized LGP thickness is smaller, can set flexible in LGP both sides Formula jacking block, it is to avoid lifting surface area is smaller to form the contact of similar point, causes overall quality to be not added with, if large-sized LGP thickness is larger, Jacking block lifting surface area is larger, can be uniformly arranged many places Telescopic top block structure, to ensure to the elastic force effect of LGP and to whole The uniform force of LGP.

Claims (5)

1. a kind of modular structure of regulation LGP displacements, including LGP (1) and plastic frame (2), it is characterised in that adjacent with LGP (1) Plastic frame (2) side be provided with a groove (3), groove (3) is inner to inlay a telescopic jacking block；The telescopic jacking block bag Base (4) and jacking block (5) are included, jacking block (5) stretches out from the opening of base (4) upper end, by telescopic elastomeric element (6) and bottom Seat (4) is connected.

2. modular structure according to claim 1, it is characterised in that the groove (3) with internal thread and base (4) outward The external screw thread of wall is used cooperatively.

3. modular structure according to claim 1, it is characterised in that the top diameter of the jacking block (5) is straight less than bottom Footpath, in a trapezoidal shape.

4. modular structure according to claim 1, it is characterised in that a diameter of 1-2mm at the top of the jacking block (5).

5. modular structure according to claim 1, it is characterised in that the elastomeric element (6) is spring.