CN206523721U

CN206523721U - A kind of backlight module and display module

Info

Publication number: CN206523721U
Application number: CN201620751404.9U
Authority: CN
Inventors: 胡俊; 李志成; 周福新; 严玲
Original assignee: Truly Semiconductors Ltd
Current assignee: Truly Semiconductors Ltd
Priority date: 2016-07-18
Filing date: 2016-07-18
Publication date: 2017-09-26
Anticipated expiration: 2026-07-18

Abstract

The utility model discloses a kind of backlight module, including light guide plate and the lamp bar and lamp block positioned at the light guide plate different sides；The lamp bar and lamp block are the independently-controlled；The lamp block is correspondingly arranged with display screen partial display area.The invention also discloses a kind of display module.The backlight module can light corresponding lamp bar or lamp block and corresponding viewing area according to the need for difference, it is possible to decrease power consumption, while realizing a variety of different display effects；Solve prior art and two kinds of different effects are shown by Double screen handset or double backlight mobile phones, but the design of these double screens or double backlights, scheme is more complicated, the integral thickness and weight of mobile phone are also increased simultaneously, it can not meet user Geng Gao use requirement, the problems such as price does not have advantage yet.

Description

A kind of backlight module and display module

Technical field

The utility model is related to display backlight field, more particularly to a kind of backlight module and display module.

Background technology

Existing mobile phone mostly using liquid crystal display (Liquid Crystal Display, LCD) as display screen, by The liquid crystal used in the liquid crystal panel of liquid crystal display does not light in itself, and it need to set backlight in addition to provide the brightness of abundance Light source with being evenly distributed, enables liquid crystal display normally to show.However, the setting of backlight adds the overall thick of mobile phone Degree and weight, meanwhile, set backlight also to cause the power consumption of mobile phone to greatly increase in addition.On the other hand, existing mobile phone is usual All application functions can only be operated and shown on one screen on only one of which screen, mobile phone, though also there is one at present Departure machine develops Double screen handset or double backlight mobile phones, for showing two kinds of different effects, but these double screens or The design of the double backlights of person, scheme is more complicated, while also increasing the integral thickness and weight of mobile phone, can not meet user Geng Gao's Use requirement, price is also without advantage.

Backlight liquid crystal display device possesses many advantages at present, is used widely, present to meet display device LED quantity is also gradually increasing in increasing function and application, the brightness demand of backlight also more and more higher, backlight Many, power consumption is also increasing with generating heat.

Such as present 5 cun of mobile phone liquid crystal display module, the configuration of highlighted requirement is general in more than 10PCS LED, most often With for 12PCS LED, but in actual applications, not all function needs to use so high brightness, for example, use mobile phone The time is seen, with the popularization of mobile display device, mobile phone instead of wrist-watch, clock in large part.But by display mould The existing design scheme of group, mobile phone needs display, need to light backlight, whole LED are lighted, and power consumption is big, though can be by adjusting The actual use electric currents of LED are saved to adjust brightness, but the upper inconvenience of operation.Moreover, as shown in figure 1, existing design and control Circuit processed, when lighting backlight, LED all lights, whole screen display, one is that control circuit is to be so designed that, two be because working as LED During all light, whole screen can be obtained than more uniform light source, because when LED only bright half or local time, display screen it is equal Even property can be than relatively low, and regional area can have hot spot dark space than dark close to the LED viewing areas gone out.

Utility model content

In order to solve above-mentioned the deficiencies in the prior art, the utility model provides a kind of backlight module, and it can be according to difference The need for light corresponding lamp bar or lamp block and corresponding viewing area, it is possible to decrease power consumption, while realizing a variety of different aobvious Show effect；Solve prior art and two kinds of different effects, but these are shown by Double screen handset or double backlight mobile phones The design of double screen or double backlights, scheme is more complicated, while also increasing the integral thickness and weight of mobile phone, can not meet use The higher use requirement in family, the problems such as price does not have advantage yet.

The utility model additionally provides a kind of display module.

Technical problem to be solved in the utility model is achieved by the following technical programs：

A kind of backlight module, including light guide plate and the lamp bar and lamp block positioned at the light guide plate different sides；The lamp bar It is the independently-controlled with lamp block；The lamp block is correspondingly arranged with display screen partial display area.

Further, the lamp block includes the second wiring board and at least LED being fitted on second wiring board.

Further, the light guide plate carries out micro-structural processing with the lamp block corresponding position.

Further, an at least LED is a LED or two LEDs.

Further, the lamp bar includes first line plate and at least two groups LED being fitted on the first line plate Lamp group, each LED light group is the independently-controlled.

Further, at least two groups LED light groups include the LED light group of three groups and the above.

Further, each LED light group includes a LED.

Further, each LED light group includes at least two LEDs.

A kind of display module, including above-mentioned backlight module.

The utility model has the advantages that：

The light source part of this backlight module be arranged to can be the independently-controlled lamp bar and lamp block, wherein lamp block correspondence local display Region, you can according to corresponding lamp block or lamp bar and corresponding viewing area is lighted the need for difference, while to lamp block correspondence Light guide plate carry out microstructure design so that during local display, the requirement of the uniform sexual satisfaction of the light of partial display area will not go out The problem of existing corresponding viewing area display inequality；Power consumption can be not only reduced, a variety of different display effects is also achieved, also solves Prior art of having determined shows two kinds of different effects by Double screen handset or double backlight mobile phones, but these double screens or The design of double backlights, scheme is more complicated, while also increasing the integral thickness and weight of mobile phone, can not meet making for user Geng Gao With requiring, not the problems such as price does not have advantage yet.

Brief description of the drawings

Fig. 1 is LED circuit connection diagram in prior art backlight module；

Fig. 2 is the schematic diagram that the utility model embodiment 1 is displayed in full screen；

Fig. 3 is the schematic diagram of the local display of the utility model embodiment 1；

Fig. 4 is the schematic diagram that the low-light level of the utility model embodiment 2 is shown.

Embodiment

The utility model is described in detail with reference to the accompanying drawings and examples.

The utility model provides a kind of backlight module, and it includes light guide plate, lamp bar and lamp block, the lamp bar and lamp block position In the not homonymy of the light guide plate；The lamp bar includes first line plate and at least two groups be fitted on the first line plate LED light group, each LED light group is the independently-controlled, you can lights one group of LED light group according to actual needs or while lights multigroup LED light group, to realize different display effects；The lamp block is correspondingly arranged with display screen partial display area, and the lamp block includes Second wiring board and at least LED being fitted on second wiring board；The backlight module can be lighted according to actual conditions Lamp bar or lamp block, one realizes different display effects, can both reduce power consumption, also avoids the waste of resource and excessively use to cause Shorten the service life of LED, while providing the new experience of backlight module in the case where not increasing backlight module volume and structure Mode, further improves the application effect of backlight module.

LED in each LED light group and in lamp block can be connected in series or in parallel, and appropriate choosing can be done according to actual conditions Select.

Ground is further improved, the first line plate and the second wiring board can be integrally disposed, can also be independently arranged.It is preferred that Ground, the first line plate and the second wiring board are pasted onto one end of the backlight module by Heat dissipation adhesive tape；Each LED is each A heat dissipation element is connected, its side plate thermal conductive contact with the backlight module dissipates for LED heat to be conducted to side plate Send out, so that backlight module has preferably radiating effect.

It should be noted that the circuit part for being used to control LED set on the wiring board, belongs to existing easy reality Existing technology, those skilled in the art are easily designed according to the demand for control of light source, will not be repeated here.

Embodiment 1

Fig. 2,3 are refer to, a kind of backlight module is present embodiments provided, it includes light guide plate 1, positioned at the light guide plate 1 A piece LED light bar 2 of incident side and in other three sides of the light guide plate side LED block 3；The He of LED light bar 2 LED block 3 is the independently-controlled；The LED block 3 is correspondingly arranged with display screen partial display area, its preferably but do not limit including One or two LED.

As shown in figure 3, when certain applications and when not needing highlighted and whole screen to show, such as seeing time, date, weather letter Breath, can be operated alone the tunnel of LED block 3 one, only light the LED block 3, while LCDs equally control is only shown Corresponding a part of region, reduction power consumption and caloric value.

As shown in Fig. 2 when normal full-screen is shown, can drive and light the LED light bar 2, full frame uniform display is realized.

Further, the LED block 3 could be arranged to normal bright form, i.e. the local display information（Time, the date or Other）It is visible whenever and wherever possible, it can also be provided that the LED for lighting, individually lighting is lighted or touched to button when needed Lamp block 3, according to the size and location of viewing area, can designed, designed configure its quantity and position.It is highly preferred that with it is described Micro-structural adjustment is carried out on light guide plate 1 corresponding to LED block 3, to accomplish uniform display.

Embodiment 2

The present embodiment difference from Example 1 is：The LED light bar 2 includes at least two groups LED light groups, every LED Lamp group is the independently-controlled, and each LED light group includes an at least LED.

When brightness needs not high, when such as night reads, the LED light group of a part, such as four points can be only lighted as needed One of, as shown in figure 4, the viewing area of screen can suitably reduce, it is to avoid the display uneven phenomenon at LED.

Embodiment 3

A kind of display module, it includes the backlight module as described in embodiment 1 or 2.

Embodiment described above only expresses embodiment of the present utility model, and it describes more specific and detailed, but simultaneously Therefore the limitation to the utility model the scope of the claims can not be interpreted as, as long as using equivalent substitution or the form of equivalent transformation institute The technical scheme of acquisition, all should fall within protection domain of the present utility model.

Claims

1. a kind of backlight module, it is characterised in that it includes light guide plate, a LED light bar positioned at the light guide plate incident side And in other three sides of the light guide plate either side LED block；LED light bar and the LED block is the independently-controlled；It is described LED block is correspondingly arranged with display screen partial display area, and it includes one or two LED.