CN102694925A - A power-saving display device and method for a portable smart terminal - Google Patents

Abstract

The invention discloses a power-saving display method of a portable intelligent terminal, which is characterized in that a display panel of the portable intelligent terminal forms two or more display areas through physical division or virtual division; the power-saving display device of the portable intelligent terminal comprises a display controller, a column driver, a row driver and a display panel, and is characterized in that two or more display areas are formed by physical division or virtual division; the power-saving display device also comprises a mode switching module, wherein the mode switching module is used for setting the lighted display area and driving the display controller, so as to control and configure the driving of the column driver and the row driver to the display panel, so that the corresponding display area is lighted and display output conforming to the display area is formed.

Description

A power-saving display device and method for a portable intelligent terminal

technical field

The present invention relates to planar display technology, more specifically to a power-saving display device and method applied to portable intelligent terminals.

Background technique

At present, there are more and more smartphones, with higher and higher hardware configurations, larger and larger screens, and thinner and thinner screens. With the emergence of touch operating systems such as Android, large-screen mobile phones are blooming everywhere.

Large-screen mobile phones or portable smart terminals are faced with an important problem, the power consumption is large, and the battery generally can only be used for about one day. In addition, the power consumption of the screen accounts for a large proportion of the power consumption of the entire terminal, which can reach 50% or more.

The large screen setting of the mobile phone is mainly to improve the user's experience in browsing the web, enjoying high-definition videos, and playing games. Generally, as a basic function of a mobile phone, a portion of the display panel is sufficient for daily use by users.

Chinese patent ZL03145816.5, patent name "Power-saving display device and power-saving portable electronic device using power-saving backlight unit" discloses a power-saving backlight unit, which is suitable for a main and a secondary display A portable electronic device with a panel, its technical solution is "the secondary display panel and the main display panel are back to back, and are arranged on the first area of the main display panel, including: first and second light emitting devices; wherein, when the portable When the portable electronic device is in the transmitting and receiving state, the portable electronic device simultaneously drives the first and second light emitting devices to emit light to provide light sources for the first and second areas of the main display panel; when the portable electronic device is in the standby state, The portable electronic device only drives the first light emitting device to emit light, so as to provide a light source for the secondary display panel". Obviously, it uses a structure of two display panels, and there is no question of how to solve the problem of how to solve the problem of power saving in screen display engineering for mobile phones or terminals with only one large display panel.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a power-saving display device and a power-saving display device that not only ensures the need for a large-screen design for portable intelligent terminals such as mobile phones, but also effectively reduces the power consumption of the display process and solves the problem of undurable batteries. method.

The present invention is realized by following scheme:

A power-saving display device for a portable intelligent terminal, comprising a display controller, a column driver, a row driver and a display panel, characterized in that two or more display areas are formed by physical division or virtual division; the power-saving display device It also includes a mode switching module, the mode switching module is used to set the displayed area to be lit, and drive the display controller, and then control and configure the driving of the display panel by the column driver and the row driver, so that the corresponding display area is lit and forms a corresponding display area. Display output for this display area.

Wherein, the display area of the display panel can be driven by the following different schemes, that is: the display area of the display panel has an independent display drive interface, and each display area is driven by an independent row driver or an independent column driver; or display The display areas of the panel have the same display driving interface, and each display area uses a common row driver and column driver to display combinations of different display areas in different driving modes.

A power-saving display method for a portable smart terminal, characterized in that, the display panel of the portable smart terminal forms two or more display areas through physical division or virtual division; In the driving mode, only part of the display area is lit for display output to reduce the power consumption of the display panel. After the user selects a display mode through the mode switching module, the display controller of the portable intelligent terminal controls the row driver or the column driver to light up the display area corresponding to the display mode, and forms an output suitable for display in the lighted display area. In the non-power-saving mode, the display controller controls the row driver and column driver to light up all display areas, and the entire display panel of the portable smart terminal is used for overall display output.

The display regions mentioned above are respectively driven by independent row drivers or independent column drivers; or the display regions are respectively driven by common row drivers and column drivers using different driving modes.

In summary, the salient features of the present invention are:

1). It can realize the needs of portable smart terminals such as mobile phones equipped with large screens, and can effectively light up the screen through the sub-display area to achieve the purpose of power saving of the display panel;

2). Cooperating with the new display panel drive mode and display device structure, the combination of different flat display areas can be realized, bringing new user experience.

Description of drawings

Fig. 1 is one of structural representation of device of the present invention;

Fig. 2 is the second structural representation of device of the present invention;

Fig. 3 is the third structural representation of the device of the present invention;

4 is one of the schematic diagrams of the display area division of the display panel of the device of the present invention;

Fig. 5 is the second schematic diagram of the display area division of the display panel of the device of the present invention;

FIG. 6 is the third schematic diagram of the display area division of the display panel of the device of the present invention.

Detailed ways

Referring to FIG. 1 , the power-saving display device for a portable intelligent terminal of the present invention is composed of a display controller, a column driver, a row driver, a display panel, a mode switching module, and a video decoding module. They are respectively:

The display controller is used to control the column driver and the row driver; respond to the display mode setting of the mode switching module to form a display output suitable for the mode; according to the video decoding module, form control signals and digital signals for the column driver and the row driver output.

The mode switching module is used to realize the multiple mode configurations of the power-saving display of the present invention, to complete the switching between modes, to set the illuminated display area, and to drive the display controller, and then to control and configure the column driver and row The driver drives the display panel to light up the corresponding display area and form a display output that conforms to the display area

The display panel forms two or more display areas through physical division or virtual division. Referring to FIG. 1 , the number of display areas can be determined according to the size and resolution of the screen, and preferably, it is suitable to be divided into two or three display areas.

Below, with reference to the accompanying drawings, an example is given to illustrate the display area division:

Referring to Figure 4, it is a display panel with a resolution of 800*1280, such as the Samsung mobile phone Galaxy Note, the display screen resolution is 800*1280 pixels, and the screen size is 5.3 inches. Through the method of the present invention, the 800*1280 display panel can be divided into three display areas, and the resolutions are as follows: the first display area is 800*480, the second display area is 800*480, and the third display area is 800*320. Referring to FIG. 5 , it is a display panel with a resolution of 480*800, which can be divided into two display areas according to the resolution, that is, the first display area is 480*320, and the second display area is 480*480. Referring to FIG. 6 , a display panel with a resolution of 320*480 can be preferably divided into two display areas, that is, the first display area is 320*240, and the second display area is 320*240. In the preferred solution, the first display area can be preferentially divided according to the common resolution of mobile phones, such as 800*480, 480*320, and 320*240, which are widely used in smart phones. The regions can obtain good display compatibility, which can be divided according to the size and resolution of the display panel. The display area of the display panel can be divided physically or virtually. The physical division means that during the printing process of the display panel, the structural layer used to realize the display of the display panel has the same number of independent display units as the number of divided display areas, and each independent display unit is connected through an independent display driver interface or the same Display the driver interface for driver display. Different independent display units are seamlessly combined into a complete display panel. Virtual division refers to a method of partially lighting and displaying a display panel by changing the control mode of the display controller, or directly changing the driving mode of the row driver or the column driver. What the virtual division changes is not the structure of the display panel, but the improvement of the driving circuit and the programming of the display controller chip.

Referring to Figure 1, the portable smart terminal system sets the displayed area to be lit through the mode switching module (in power-saving mode, only the first display area is lit), and the mode switching module notifies the video decoding module to perform decoding according to the resolution of the display area. Decoding: After the display data is input to the display controller, the display controller controls the scanned row by controlling the row driver. If it is in power saving mode, it only scans and drives the display unit in the first display area for display, that is Only the first display area is lit for display. If it is in non-power-saving mode, according to the user's choice, all display areas can be lighted at the same time, and displayed through the original size and resolution of the display panel, or some of the display areas can be lighted at the same time, combined to form a comparison Larger display area in electric mode.

Referring to FIG. 2 , relative to FIG. 1 , the power saving display device has a plurality of row drivers. The number of row drivers is equal to the number of display areas of the display panel. The display panel is divided into independent display units through a physical division method, and each independent display unit serves as a display area. Each display area has an independent display driver interface, and each display area is driven by an independent row driver. That is, the first display area is scanned and driven by the first row driver, and the second display area is scanned and driven by the second row driver. Referring to Fig. 3, the column drivers can share the same driver, or it can be considered to advance through each independent column driver. According to the size of the display panel, the display area of the display panel can be divided horizontally or vertically.

In summary, the method for performing power-saving display through the power-saving display device of the portable intelligent terminal can be summarized as follows:

Firstly, the display panel of the portable intelligent terminal forms two or more display areas by physical division or virtual division; Reduce the power consumption of the display panel; when the user selects the display mode through the mode switching module, the display controller of the portable intelligent terminal controls the row driver or the column driver to light up the display area corresponding to the display mode, and forms a display area suitable for the point to be clicked. The bright display area shows the output. In normal mode, it can be displayed by lighting up all the display areas, or by lighting up some components of the display areas to form outputs with different display sizes and resolutions. In the non-power-saving mode, the display controller controls the row driver and column driver to light up all display areas, and the entire display panel of the portable smart terminal is used for overall display output.

The display regions are respectively driven by independent row drivers or independent column drivers; or the display regions are respectively driven by common row drivers and column drivers using different driving modes.

Other details of the device and method of the present invention can be implemented with reference to the prior art. In practical application, it can meet the needs of mobile phones and other portable intelligent terminals equipped with large screens, and at the same time, through different screen lighting modes, the purpose of power saving of the display panel can be achieved.

Claims (10)

1. the power saving display packing at a portable intelligent terminal is characterized in that, the display floater at said portable intelligent terminal forms two or above viewing area through physical division or virtual division; Under the battery saving mode, through changing the drive pattern of line driver or row driver, only lighting wherein, the part viewing area is used to show that output is to reduce the power consumption of display floater.

2. the power saving display packing at portable intelligent as claimed in claim 1 terminal; It is characterized in that; After the user selects display mode through mode switch module; The display controller at portable intelligent terminal control line driver or row driver to be lighting the pairing viewing area of this display mode, and form the output that is fit to the viewing area demonstration that this quilt lights.

3. the power saving display packing at portable intelligent as claimed in claim 2 terminal is characterized in that, described viewing area respectively through line driver independently or independently row driver drive.

4. the power saving display packing at portable intelligent as claimed in claim 2 terminal is characterized in that, described viewing area adopts different drive patterns to drive through common line driver and row driver respectively.

5. like the power saving display packing at claim 3 or 4 arbitrary described portable intelligent terminals; It is characterized in that; Under the non-battery saving mode, display controller control line driver and row driver are to light all viewing areas, and the whole display floater at portable intelligent terminal is used for the whole output that shows.

6. the power saving display unit at a portable intelligent terminal comprises display controller, row driver, line driver and display floater, it is characterized in that, forms two or above viewing area through physical division or virtual division; Said power saving display unit also comprises mode switch module; Mode switch module is used to be provided with the viewing area of being lighted; And driving display controller; And then control and configuring arrange driver and line driver be to the driving of display floater, the demonstration output that makes corresponding display light and form to meet this viewing area.

7. the power saving display unit at portable intelligent as claimed in claim 6 terminal is characterized in that, the viewing area of said display floater has independently display driver interface, each viewing area through line driver independently or independently row driver drive.

8. the power saving display unit at portable intelligent as claimed in claim 6 terminal; It is characterized in that; The viewing area of said display floater has identical display driver interface, and each viewing area adopts different drive patterns to show the combination of different viewing areas through common line driver and row driver.

9. the power saving display unit at portable intelligent as claimed in claim 7 terminal is characterized in that, comprises two or above row driver or line driver.

10. the power saving display unit at portable intelligent as claimed in claim 9 terminal is characterized in that, the viewing area resolution under the described battery saving mode is: 800*480,480*320,320*240 or other 1024*1024 are with interior resolution.

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