CN201853471U

CN201853471U - Dynamic LCD (Liquid Crystal Display) refreshing frequency switching device

Info

Publication number: CN201853471U
Application number: CN2010202539358U
Authority: CN
Inventors: 程雪涛; 刘龙
Original assignee: BEIJING JINGSHAN CHUANGXIN COMMUNICATION TECHNOLOGY Co Ltd
Current assignee: BEIJING JINGSHAN CHUANGXIN COMMUNICATION TECHNOLOGY Co Ltd
Priority date: 2010-07-12
Filing date: 2010-07-12
Publication date: 2011-06-01
Anticipated expiration: 2020-07-12

Abstract

The utility model discloses a dynamic LCD (Liquid Crystal Display) refreshing frequency switching device which comprises a central processor, a picture discriminating module, a display control module, an LCD display module, a first picture storing module and a second picture storing module, wherein the central processor is connected with the picture discriminating module, the display control module, the first picture storing module and the second picture storing module respectively; the picture discriminating module is connected with the central processor, the display control module, the first picture storing module and the second picture storing module respectively; the display control module is connected with the central processor, the picture discriminating module and the LCD display module respectively; the LCD display module is connected with the display control module; and the first picture storing module and the second picture storing module are connected with the central processor and the picture discriminating module respectively. The dynamic LCD refreshing frequency switching device can switch the LCD refreshing frequency according to static pictures or dynamic pictures, solves the problem of shaking of LCD pictures, and saves electricity simultaneously.

Description

A kind of device of dynamic switching LCD refreshing frequency

Technical field

The utility model relates to the terminal device of a kind of LCD of having, relates in particular to a kind of switching LCD refreshing frequency device of terminal device.

Background technology

Fast development along with Digital Electronic Technique, the terminal device that has LCD display has become people's work, indispensable communication, information inquiry and the converter tools of life, but because the height difference of LCD display cost, its display quality also exists than big-difference.In the prior art, when LCD shows tableaux, particularly when the display gray scale wrongly written or mispronounced character, occur easily the shake of literal edge shake or white line and cause the whole image shake; And when showing dynamic menu, picture adularescent or black are taken out line and are occurred, and when the LCD refreshing frequency was higher, the power consumption of LCD was also bigger, had shortened the stand-by time of portable terminal.These all can reduce the desire that the user enough buys the terminal device with this LCD display.

The utility model content

At the defective that exists in the prior art, the purpose of this utility model provides a kind of device of dynamic switching LCD refreshing frequency, can switch the LCD refreshing frequency according to tableaux or dynamic menu, solved the problem of LCD float, owing to when playing dynamic menu, reduced the refreshing frequency of LCD, reached the purpose of economize on electricity simultaneously.

For finishing the purpose of above-mentioned utility model, the device of a kind of dynamic switching LCD refreshing frequency that the utility model provides comprises: central processing unit, the picture discrimination module, display control module, LCD display module, the first picture memory module, and the second picture memory module is characterized in that:

Described central processing unit connects described picture discrimination module respectively, display control module, the first picture memory module, and the second picture memory module are used to control described picture discrimination module, display control module, the first picture memory module, and the work of the second picture memory module;

Described picture discrimination module, connect described central processing unit respectively, display control module, the first picture memory module, and the second picture memory module, accept the control of described central processing unit, image information is differentiated, and will differentiate the result and image information sends to described display control module;

Described display control module connects described central processing unit respectively, picture discrimination module, and LCD display module; Accept the control of central processing unit, and, control of the demonstration of described LCD display module picture according to the differentiation result of described picture discrimination module;

Described LCD display module connects described display control module, accepts described display control module control, carries out picture and shows;

The described first picture memory module connects described central processing unit and described picture discrimination module respectively, is used to store tableaux information;

The described second picture memory module connects described central processing unit and described picture discrimination module respectively, is used to store dynamic menu information.

Dynamic switching LCD refreshing frequency of the present utility model mainly is useful in the Base layer and the Overlay2 layer carries out the frequency switching, when showing tableaux and playing dynamic menu, use different refreshing frequencys, not only can alleviate the phenomenon of lcd screen shake, when playing dynamic menu, the power consumption of CPU own is bigger, suitable reduction LCD refreshing frequency, also effect to play power saving and to prolong viewing time.

Description of drawings

Accompanying drawing is used to provide further understanding of the present utility model, and constitutes the part of instructions, is used from explanation the utility model with embodiment one of the present utility model, does not constitute restriction of the present utility model.In the accompanying drawings:

Fig. 1 is the principle of device block diagram according to dynamic switching LCD refreshing frequency of the present utility model;

Fig. 2 is according to LCD display module structural representation of the present utility model.

Embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for the description and interpretation utility model, and be not used in qualification the utility model.

Fig. 1 is the principle of device block diagram according to dynamic switching LCD refreshing frequency of the present utility model, as shown in Figure 1, the device of dynamic switching LCD refreshing frequency of the present utility model, comprise: central processing unit 101, picture discrimination module 102, display control module 103, LCD display module 104, the first picture memory module 105, and the second picture memory module 106, wherein:

Central processing unit 101, connect picture discrimination module 102 respectively, display control module 103, the first picture memory module 105, and the second picture memory module 106, be used to control picture discrimination module 102, display control module 103, the first picture memory module 105, and the work of the second picture memory module 106;

Picture discrimination module 102, connect central processing unit 101 respectively, display control module 103, the first picture memory module 105, and the second picture memory module 106, accept the control of central processing unit 101, to differentiating, and will differentiate the result and image information sends to display control module 103 from the image information of the first picture memory module 105 or the second picture memory module 106;

Display control module 103 connects central processing unit 101 respectively, picture discrimination module 102, and LCD display module 104; Accept the control of central processing unit 101, receive the differentiation result and the image information of the transmission of picture discrimination module 102, and switch the refreshing frequency and the display mode of LCD display module 104 according to this differentiation result; Display control information and image information are sent to LCD display module 104;

LCD display module 104 connects display control module 103, receives display control information and image information from display control module 103, and carries out the picture demonstration;

The first picture memory module 105 connects central processing unit 101 and picture discrimination module 102 respectively, is used to store tableaux information, and accepts the control of central processing unit 101, and the tableaux information of storing is sent to picture discrimination module 102;

The second picture memory module 106 connects central processing unit 101 and picture discrimination module 102 respectively, is used to store dynamic menu information, and accepts the control of central processing unit 101, and the dynamic menu information of storing is sent to picture discrimination module 102.

Fig. 2 is the LCD display module structural representation according to the device of dynamic switching LCD refreshing frequency of the present utility model, as shown in Figure 2, LCD display module 104 comprises basic layer (the Base layer) 403 that is positioned at the bottom, be positioned at first overlayer (overlay1 layer) 402 above the Base layer 403, and be positioned at second overlayer (overlay2 layer) 401 above the overlay1 layer, wherein: basic layer (Base layer) 403 is used to show tableaux, and Overlay2 is used to show dynamic menu.

The course of work that the device of dynamic switching LCD refreshing frequency of the present utility model dynamically switches first picture storage mould LCD refreshing frequency is as follows: at first, central processing unit 101 controll blocks 105 or the second picture memory module 106 send to picture discrimination module 102 with image information, picture discrimination module 102 receives and differentiates image information is tableaux information or dynamic menu information, and will differentiate the result and image information sends to display control module 103; Secondly, display control module 103 is according to above-mentioned differentiation result, switch LCD refreshing frequency, generate Overlay2 layer control signal, and the refreshing frequency of the LCD after will switching, Overlay2 layer control signal, and image information sends to LCD display module 104 and shows.

In the utility model, if picture displayed is a tableaux information, 103 of display control modules are closed the Overlay2 layer of LCD display module 104, and improve the refreshing frequency of LCD; When wanting picture displayed is dynamic menu information, and 103 of display control modules are opened the Overlay2 layer of LCD display module 104, and reduces the refreshing frequency of LCD.

Dynamic switching LCD refreshing frequency of the present utility model mainly is useful in the Base layer and the Overlay2 layer carries out the frequency switching, when showing tableaux and playing dynamic menu, use different refreshing frequencys, not only can alleviate the phenomenon of lcd screen shake, when playing dynamic menu, the power consumption of CPU own is bigger, suitable reduction LCD refreshing frequency, the effect that can also play power saving and prolong viewing time.

One of ordinary skill in the art will appreciate that: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. device that dynamically switches the LCD refreshing frequency comprises: central processing unit, and the picture discrimination module, display control module, the LCD display module, the first picture memory module, and the second picture memory module is characterized in that:

2. the device of dynamic switching LCD refreshing frequency according to claim 1, it is characterized in that, described LCD display module also comprises: be positioned at the basic layer of the bottom, be positioned at first overlayer above the described basic layer, and be positioned at second overlayer above described first overlayer.