Display device and driving method thereof

A technology for display devices and driving methods, applied in static indicators, instruments, etc., can solve problems such as unsatisfactory power consumption, poor uniformity of LED brightness, complicated control, etc., and achieve the effects of simple control, reduced power consumption, and reduced quantity

Active Publication Date: 2017-12-05
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing backlight modules have the following disadvantages: poor uniformity of LED brightness; complex control; power consumption can not meet people's requirements

Method used

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  • Display device and driving method thereof
  • Display device and driving method thereof
  • Display device and driving method thereof

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Embodiment Construction

[0019] The specific implementation manners of the display device and its driving method provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] see figure 2 and image 3 As shown, the display device of the present invention includes a display screen 20 and a backlight module 21 .

[0021] The display screen 20 is a conventional display screen, for example, a liquid crystal display screen. In this specific implementation manner, the display screen includes a data line direction along the vertical direction of the display screen and a scanning line direction along the horizontal direction of the display screen.

[0022] The backlight module 21 includes a first backlight module 211 and a second backlight module 212 . The first backlight module 211 emits light along a first direction, the second backlight module 212 emits light along a second direction, and the first direction is perpendicular to the second di...

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Abstract

The invention provides a display device and a driving method thereof. The display device comprises a display screen and a backlight module group. The backlight module group comprises a first backlight module group used to provide backlight for the full display are of the display screen and a second backlight module group used to provide the backlight for the partial display area of the display screen. The first backlight module group is used to emit light along a first direction, and the second backlight module is used to emit the light along a second direction, and in addition, the first direction is vertical to the second direction. The display device and the driving method are advantageous in that a normal display mode and an AOD display mode adopts different backlight module groups for providing the backlight, and the partition of every backlight module group is not required, and the multipath control over the backlight is not required, and in addition, the uniformity of the backlight control during the display is improved; by adopting the modularization control of the backlight module group, the control is easier during the normal display and the AOD function display; without affecting the AOD display, a number of switched-on LED lamps is reduced, and an object of reducing the power consumption during the use of the AOD function is further achieved.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a display device and a driving method thereof. Background technique [0002] With the development of display technology, people have higher and higher requirements for the size and resolution of mobile phones, and the improvement of the size and resolution of mobile phones also puts forward higher requirements for power consumption. How to reduce liquid crystal display power consumption has become a subject worth studying. When the mobile phone does not operate or only needs to display a small amount of information, such as only displaying clock information, people will use the AOD (Always-On Display) method to reduce the number of backlight LEDs and reduce the LED drive current. , reducing the LCD display refresh rate and other ways to achieve the purpose of maintaining the necessary information and reducing the power consumption of the display. [0003] Figure 1A is a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
Inventor 左清成
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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