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Driving method of liquid crystal display panel and liquid crystal display panel

A technology of a liquid crystal display panel and a driving method, which is applied to static indicators, instruments, etc., can solve the problems of the liquid crystal being too late to respond to the preset position, affecting the display effect, and the dizziness of the viewer, so as to make up for the excessively long response time of the liquid crystal, Avoid smear phenomenon and enhance the effect of application value

Active Publication Date: 2019-04-05
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the actual display process, after one frame of image data is transmitted, the next frame of image data is transmitted immediately, and the liquid crystal has no time to respond to the preset position, resulting in hysteresis or smearing, which affects the display effect
Further, in order to achieve special purposes, such as when realizing virtual reality (Virtual Reality, referred to as VR) scene display, since the display screen is closer to the human eye, the human eye is more sensitive to the smear phenomenon, which makes the viewer feel dizzy

Method used

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  • Driving method of liquid crystal display panel and liquid crystal display panel
  • Driving method of liquid crystal display panel and liquid crystal display panel
  • Driving method of liquid crystal display panel and liquid crystal display panel

Examples

Experimental program
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Effect test

Embodiment 1

[0027] This embodiment provides a method for driving a liquid crystal display panel, which can effectively solve the problem of dizziness in VR applications.

[0028] The driving method of the liquid crystal display panel is used for displaying images frame by frame, and multiple rows of pixels in each frame are turned on row by row by a driver circuit including multiple cascaded GOA (Gate On Array, gate array) units. At a certain refresh frequency, each GOA unit receives a set of clock signals, which are converted into a gate drive signal (OUT signal) and output to all pixels in a row or some pixels in a row of pixels, and trigger the next GOA unit to start work, and then sequentially scan the remaining pixels in the display screen.

[0029] In the driving method of the liquid crystal display panel, the image display process of each frame includes:

[0030] Step S1): In the data transmission stage, the control elements of each pixel are turned on in sequence, the image data ...

Embodiment 2

[0048] The present embodiment provides a driving method of a liquid crystal display panel, which can effectively ensure a touch effect.

[0049] In the driving method of the liquid crystal display panel, the liquid crystal display panel is a touch panel. Wherein, the holding stage also includes touch detection on the liquid crystal display panel, including the steps of receiving a touch signal and detecting a touch position.

[0050] Based on the usual 90Hz drive circuit, the implementation of the mobile mode with touch function is explained as follows:

[0051] Adjust the crystal oscillator of the display IC to a higher frequency (for example, 120Hz), change the timing (timing) of the code control output driving the GOA unit, and increase the blanking time to reach 8.3ms under the condition that the display IC drive capability supports The pixels of all rows are scanned and the data transmission is completed (the specific time can be flexibly changed according to the touch s...

Embodiment 3

[0055] This embodiment provides a liquid crystal display panel, the liquid crystal display surface is especially suitable for VR mode, and also suitable for display+touch mode.

[0056] The liquid crystal display panel is driven by the driving method of the liquid crystal display panel in the first embodiment or the second embodiment. Adding the hold phase in the display process can reserve sufficient liquid crystal response time or touch detection time to achieve better image display; in addition, since the thin film transistor is in the off state during the hold phase, for example, the display effect also reaches 120Hz refresh rate Under the condition of the driving mode, it saves more power than the driving mode without setting the refresh frequency of 120Hz in the hold phase.

[0057] The liquid crystal display panel compensates for the long response time of the liquid crystal by improving the driving frequency, which effectively reduces the image delay of the same display...

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Abstract

The invention belongs to the technical field of display and particularly relates to a driving method of a liquid crystal display panel and the liquid crystal display panel. The driving method of the liquid crystal display panel is used to display images frame by frame, the display process of each frame of image includes a data transmission stage including successively turning on the control element of each pixel, transmitting the image data to each pixel, and turning off the control element of each pixel after the image data is transmitted to each pixel; and a maintaining stage including maintaining the control elements of all of the pixels at the off state after the data of the whole frame of image is transmitted. The driving method of the liquid crystal display panel can at least solve the dizziness problem of virtual reality VR application, guarantees the touch control effect, and moreover, with respect to high refreshing frequency, the power consumption is reduced, and the application value of a display screen is greatly improved.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a driving method of a liquid crystal display panel and the liquid crystal display panel. Background technique [0002] Currently, liquid crystal display devices have become the mainstream of flat panel displays. The liquid crystal display device includes a liquid crystal display panel and a backlight source, wherein the liquid crystal display panel includes a color filter substrate, an array substrate, and a liquid crystal between the two, wherein a common electrode and a pixel electrode for cooperating to generate an electric field are arranged, and the pixel electrode passes through the array substrate. The thin film transistor in the substrate receives the voltage of the grayscale data related to the image to be displayed, and generates an electric field with the common electrode to charge the storage capacitor, thereby causing the liquid crystal to deflect; when ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/36G09G2320/0209
Inventor 胡雄陈东孙伟
Owner BOE TECH GRP CO LTD
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