Method for dynamically reducing power of liquid crystal display

A liquid crystal display, dynamic technology, used in static indicators, instruments, etc.
CN101540154BInactive Publication Date: 2011-02-02TPV ELECTRONICS (FUJIAN) CO LTD
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TPV ELECTRONICS (FUJIAN) CO LTD
Publication Date
2011-02-02
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a method for dynamically reducing the power of a liquid crystal display, comprising the following steps of firstly working out rate of pulse width modulation and color gain in each adjustment step by obtaining the brightness value of a panel corresponding to each order of the pulse width modulation and the brightness value corresponding to each order of the color gain, subsequently preparing a dynamic brightness control list and writing the list in an MCU; collecting the brightness data of the current input video signal in real time by an image zoom control IC after electrifying the liquid crystal display, counting the data amount of the frame distribution on each grey order, controlling the PWM / duty-cycle of the lamp tube current and the arrangement of the color gain value according to the frequency of the current input video signal in a dynamic brightness control register, the control frequency of the lamp tube current PWM provided by the MCU and the dynamic brightness control list, and synchronously completing the objects of reducing the pulse width modulation and improving the color gain, thus keeping the uniform brightness of the current frame unchanged.
Need to check novelty before this filing date? Find Prior Art

Description

【Technical field】

[0001] The invention relates to the field of liquid crystal displays or liquid crystal TVs, and provides a method for dynamically reducing the power of liquid crystal displays. 【Background technique】

[0002] The current liquid crystal display products are all designed to consume relatively fixed power consumption when the display is in use or in an energy-saving state in accordance with the Energy Star standard or according to the special requirements of customers, so that the power consumption of the display in use is fixed. , will not properly adjust the power consumption according to the current brightness of the display, so as to achieve the effect of high efficiency and energy saving. 【Content of invention】

[0003] The purpose of the present invention is to provide a method that can dynamically change the power consumed by the liquid crystal display according to the current brightness of the liquid crystal display while keeping the brightness const...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More