CN203386438U

CN203386438U - Liquid crystal display with direct-down-type LED backlight and partition arrangement structure of liquid crystal display

Info

Publication number: CN203386438U
Application number: CN201320367900.0U
Authority: CN
Inventors: 李宏岱
Original assignee: Irico Group Corp
Current assignee: Irico Group Corp
Priority date: 2013-06-19
Filing date: 2013-06-19
Publication date: 2014-01-08
Anticipated expiration: 2023-06-19

Abstract

The utility model provides a partition arrangement structure capable of slowing down halo effect and with direct-down-type LED backlight gradual in change. The LED backlight is equally divided into a plurality of partition areas used for backlight dynamic statistics, the number of the partition areas is one third of the total of LEDs, and the LEDs in each partition area are arranged triangularly; further, the LEDs in each partition area are all in regular-triangle arrangement; still further, LED backlight is arranged in different columns, and the LEDs in two adjacent columns are in staggered arrangement. The number of the partition areas is arranged to be one third that of the LEDs, in other words, three LEDs are arranged in each partition area, the LEDs in each partition area are enabled to be in triangular arrangement, and emitted light is in round distribution approximately, so that partition structure of the backlight is detailed, and pictures look more exquisite and do not appear to be coarse during dynamic statistics. In addition, the invention further provides a liquid crystal display with the direct-down-type LED backlight. The liquid crystal display is clear in picture and high in image quality.

Description

A kind of liquid crystal display of direct-light type LED backlight and partition arrangement structure thereof

Technical field

The utility model relates to the LED-backlit dynamic point plot structure of showing the score, and is specifically related to a kind of liquid crystal display and partition arrangement structure thereof of direct-light type LED backlight.

Background technology

The backlight major part that the large scale liquid crystal TV is used at present is all the CCFL backlight, in whole duration of work, the CCFL backlight is operated at full capacity all the time, very large of power consumption, account for more than 60% of complete machine consumption, because backlight is entirely bright all the time, can not change brightness and color with vision signal, and LCD all masks unwanted light, thereby a large amount of light sources and power consumption have been wasted, and the contrast of image is also had a greatly reduced quality, therefore for this problem, at present by adopting direct-light type LED backlight dynamic statistics technology, solved the large problem of power consumption, carry out the change of brightness with vision signal by the LED in control area, thereby not only saved electric energy, and extended serviceable life, but also bring thus a shortcoming, it is exactly obvious halation phenomenon, in addition comparatively coarse during subregion, details is considered not in place, make halation phenomenon more obvious, affect picture quality.

The core technology of direct-light type LED backlight is that subregion is dynamically controlled, and the partition arrangement structure of traditional LED, as shown in Figure 1, can find out that from Fig. 1 working as the corresponding pixel in partitioned area front backlight is bright field, when other each districts are details in a play not acted out on stage, but told through dialogues, only have so this regional backlight lightening, other each the zone backlight dimmed.So along with light area pixel point is corresponding mobile, the backlight of its adjacent area can brighten successively, thereby forms DYNAMIC DISTRIBUTION backlight, but due to the restriction of arranging, and subregion is more coarse and clumsy, six LED Wei Yige districts, and be rectangle, six LED Wei Yige districts that the medium and small rectangle frame of Fig. 1 connects, so dynamic statistics the time, the image jumping characteristic is large, and corner angle clearly, have apparent in view halo effect.

The utility model content

The technical matters that the utility model solves is to provide a kind of partition arrangement structure of direct-light type LED backlight, not only can slow down halo effect, and can make variation backlight mild.

The utility model is to be achieved through the following technical solutions:

A kind of partition arrangement structure of direct-light type LED backlight, is characterized in that, described LED-backlit is divided into some for carrying out the partitioned area of dynamic statistics backlight; The quantity of described partitioned area is 1/3rd of LED sum, and the LED in partitioned area is triangularly arranged.

Optimize, the LED in described partitioned area all is equilateral triangle and arranges.

Optimize, described LED-backlit adopts non-same column to arrange, and adjacent two row LED are staggered arrangement.

The utility model also provides a kind of liquid crystal display of direct-light type LED backlight, and it comprises the direct-light type LED backlight as the described partition arrangement structure of any one in above-mentioned scheme; When picture appears at the intersection in adjacent sectors zone, with the partitioned area of the total intersection of picture, all light.

Compared with prior art, partition arrangement structure described in the utility model has following useful technique effect: 1/3rd the partitioned area that is LED quantity by magnitude setting, three LED are namely arranged in each partitioned area, make the LED in each partitioned area be triangularly arranged, luminous approximate rounded distribution, refinement partitioned organization backlight, make when dynamic statistics, it is more fine and smooth that picture seems, and it is coarse can not seem.Adopt the straight-down negative LED LCDs of described partition arrangement structure, picture is clear, and picture quality is high.

The accompanying drawing explanation

The partition arrangement structural representation that Fig. 1 is LED-backlit in prior art.

The partition arrangement structural representation that Fig. 2 is LED-backlit described in the utility model example.

The corresponding schematic diagram of the subregion that Fig. 3 is LED-backlit described in the utility model example and liquid crystal area.

Embodiment

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

Referring to Fig. 2 and Fig. 3, the partition arrangement structure of a kind of direct-light type LED backlight of the utility model, wherein said LED-backlit is divided into some for carrying out the partitioned area of dynamic statistics backlight, the quantity of partitioned area is 1/3rd of LED sum, LED in partitioned area is triangularly arranged, and the LED of three distributions triangular in shape is a partitioned area.Concrete, when one of them partitioned area is lighted, other each partitioned areas are all dimmed, and owing to adopting triangle that LED is set, and partitioned area is the triangular form subregion, and Fig. 2 is a partitioned area with three LED that are connected by triangle in Fig. 3; So the light-emitting zone that partitioned area projects is the zone of a sub-circular, presenting level and smooth halation distributes, and only with three lamps, formed a partitioned area, partitioned area backlight details more, make when dynamic statistics, it is more fine and smooth that picture seems, and it is coarse can not seem.

As shown in Figure 3, in picture appears at grid, in the time of in actual liquid crystal area; Corresponding triangle partitioned area backlight will be lighted, movement along with picture, partitioned area backlight is also and then mobile, when picture appears at the intersection in adjacent sectors zone, the partitioned area of intersection total with it is all lighted, so in the time of picture moving, diffusion area strengthens, and variation backlight just can not seem very lofty, has slowed down halo effect.

Optimize, as shown in Figure 3, the LED described zone in all is equilateral triangle and arranges, and the light-emitting zone that can make the partitioned area projection form more is similar to circle, make picture when variation can be more level and smooth transition.

Optimize, LED-backlit adopts non-same column to arrange, and adjacent two row LED are staggered and arrange, guaranteed each partitioned area evenly, make the image that produces more fine and smooth uniform and stable, slowed down greatly halation phenomenon.

The liquid crystal display of a kind of direct-light type LED backlight of the utility model, it comprises the direct-light type LED backlight of any one described partition arrangement structure in above-mentioned example; When picture appears at the intersection in adjacent sectors zone, with the partitioned area of the total intersection of picture, all light.

Claims

1. the partition arrangement structure of a direct-light type LED backlight, is characterized in that, described LED-backlit is divided into some for carrying out the partitioned area of dynamic statistics backlight; The quantity of described partitioned area is 1/3rd of LED sum, and the LED in partitioned area is triangularly arranged.

2. the partition arrangement structure of direct-light type LED backlight according to claim 1, is characterized in that, the LED in described partitioned area all is equilateral triangle and arranges.

3. the partition arrangement structure of direct-light type LED backlight according to claim 1 and 2, is characterized in that, described LED-backlit adopts non-same column to arrange, and adjacent two row LED are staggered arrangement.

4. the liquid crystal display of a direct-light type LED backlight, is characterized in that, comprises the direct-light type LED backlight as the described partition arrangement structure of any one in claim 1-3; When picture appears at the intersection in adjacent sectors zone, with the partitioned area of the total intersection of picture, all light.