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A driving device for a liquid crystal panel, a driving method thereof, and a display device

A technology of liquid crystal panels and driving methods, applied to static indicators, instruments, etc., can solve the problems of energy waste, low driving ability, etc., and achieve the effect of saving energy

Inactive Publication Date: 2017-01-18
HEFEI BOE OPTOELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the source driver chip used in the display panel drive of the liquid crystal display device itself contains several driving capability levels, among which the driving capability level has a certain relationship with the grayscale value of the image to be displayed (high grayscale of the displayed image The grayscale value corresponds to a high driving capability level, and the low grayscale value corresponds to a low driving capability level), and only when the driving capability level is greater than or equal to the driving capability level corresponding to the grayscale value, the image can be displayed normally, but if the driving capability used The level is greater than the driving ability level corresponding to the gray scale value of the image to be displayed, which is obviously a waste of energy
In general, source driver chip manufacturers have selected a driving capability level when programming the program (Code), that is to say, when the display panel displays images, whether it is an image with a higher Low images are driven by this level of driving ability to display images. When displaying images with low grayscale values, using this level of driving ability is obviously a waste of energy.

Method used

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  • A driving device for a liquid crystal panel, a driving method thereof, and a display device
  • A driving device for a liquid crystal panel, a driving method thereof, and a display device
  • A driving device for a liquid crystal panel, a driving method thereof, and a display device

Examples

Experimental program
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Embodiment 1

[0034] combine figure 1 As shown, this embodiment provides a method for driving a liquid crystal panel, the liquid crystal panel includes: a timing controller and a source driver chip, which includes the following steps:

[0035] Step 1: The timing controller inputs the received display signal data of the image to be displayed to the image display signal receiving unit.

[0036] Wherein, the timing controller may be integrated in the source driver chip, or may be an electrical connection between a separate timing controller and the source driver chip. Preferably, the display signal data of the image to be displayed is the display signal data of one frame of image.

[0037] Step 2. Convert the received display signal data (analog quantity) into a voltage control signal (digital quantity) through the digital-to-analog conversion unit in the highest gray scale value acquisition unit. Taking an 8-bit analog-to-analog conversion unit as an example, it can realize The voltage cont...

Embodiment 2

[0047] combine figure 2 As shown, the present embodiment provides a driving device for a liquid crystal panel, which includes:

[0048] The image display signal data receiving unit is used for receiving the display signal data of the image to be displayed. Specifically, the clock pulse signal output by the timing controller is received as the display signal data of the image to be displayed.

[0049] The highest gray scale value acquiring unit is used for analyzing the received display signal data and acquiring the highest gray scale value corresponding to the display signal.

[0050] Wherein, the highest gray scale value acquisition unit is provided with a digital-to-analog conversion unit, the digital-to-analog conversion unit is used to convert the received image display signal data into a voltage drive control signal, and analyze the The corresponding highest grayscale value.

[0051]The driving capability level acquisition unit stores the corresponding relationship be...

Embodiment 3

[0059] This embodiment provides a display device, which includes the driving device for a liquid crystal panel described in Embodiment 2. The display device may be any product or component with a display function such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, and the like.

[0060] The display device of this embodiment has the driving device for the liquid crystal panel in Embodiment 2, so its energy consumption is relatively low.

[0061] Certainly, the display device of this embodiment may also include other conventional structures, such as a power supply unit, a display driving unit, and the like.

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Abstract

The invention provides a driving device, driving method and display device for an LCD panel, and belongs to the field of an LCD technology. The driving device, driving method and display device for the LCD panel can solve the problem that a driving device of an existing LCD panel is high in energy consumption. The driving method for the LCD panel includes the first step of receiving display signal data of images to be displayed; the second step of analyzing the received display signal data and obtaining the highest gray-scale values corresponding to the display signal data through a highest gray-scale value obtaining unit; the third step of obtaining drive ability levels corresponding to the highest gray-scale values of the images to be displayed through a drive ability level obtaining unit; the fourth step of adjusting the drive ability levels to be the drive ability levels corresponding to the highest gray-scale values of the images to be displayed through a drive ability level adjusting unit.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal display, and in particular relates to a driving device of a liquid crystal panel, a driving method thereof, and a display device. Background technique [0002] For a TFT-LCD liquid crystal display device, it includes a display panel, a source driver IC (Source Driver IC) and a gate driver IC (Gate Driver IC) electrically connected to the display panel, and the display panel includes data vertically crossed. lines and scan lines, wherein the scan lines are connected to the gate driver chip, and the data lines are connected to the source driver chip. When a specific voltage is applied to the gate drive chip, the scan signal is connected to the display panel, and at the same time, the display signal data of the image to be displayed on the display panel is input to the source drive chip through the host computer (CPU), and the source drive chip passes through it. The internal digital-to-analo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
Inventor 冯霞何剑黄家成
Owner HEFEI BOE OPTOELECTRONICS TECH