This study introduced a structure of direct dynamic backlights based on LEDs,in which the light emission of every LED was restricted to a smaller area on the diffuser film and every LED was only responsible to illuminate one part of LCD.
对液晶显示来说,与静态背光源相比,直下式动态背光源具有多种优点。
Today,direct illumination-type backlight which has a simple structure and makes good use of light becomes the first choice for large-size LCD backlight,but its light uniformity gets bad without light guide plate.
其中直下式背光源具有结构简单、光利用率高的特点,是目前大尺寸液晶显示背光源的首选,但是由于没有导光板,直下式背光源的光均匀性变得较差。
The cliff was almost vertical.
那个悬崖近乎直上直下.
But this ladder does not go straight up.
然而这个阶梯并不是直上直下的,
comfortable path along the shore under the bluff,
坦直的小道直通崖下,
She fell flat on her face as she got out of the car.
她一下车便直挺挺地脸朝下倒了下去。
She fall flat on her face as she get out of the car
她一下车便直挺挺地脸朝下倒了下去
and jerking his head till his ears flapped again.
忙得它头直点,耳朵也上下直扇悠。
Go straight to the next intersection and turn left.
一直直走到下一个十字路口,然后左转。
double rear vault
摆越两杠直角上或直角下
His bike was flying along, pointing straight down the grade towards the river valley.
自行车直直地顺着下坡路朝河谷飞去。
I' ve tried till I' m tired.
我一直在试,直到累了才停下来。
He sat bolt upright in bed and looked at her.
他在床上一下坐直了,眼睛一直瞅着她。
He will be here all next week.
下周他将一直呆在这儿。
fix the lock immediately below the handle
把锁直接安在把手下方.
The hawk descended in a vertical stoop on its quarry
鹰向它的猎物直冲而下
No, he's going on straight.
不,他笔直地走下去了。
separation of bicuspid valve under direct vision
直视下二尖瓣分离术
He fell sheer down 300 feet.
他垂直跌下了三百英尺。
roping [helicopter]
沿绳下降法〔直升机〕
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