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Display panel driving method, device and display device

A technology of a display panel and a driving method, which is applied to static indicators, instruments, etc., can solve the problems of low grayscale accuracy and uneven brightness of the picture.

Active Publication Date: 2020-12-29
HKC CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a driving method, device, and display device for a display panel to address the problem of low gray scale accuracy due to the difference in the manufacturing process of the display panel and the difficulty in accurately controlling the voltage amplitude, which results in uneven brightness of the screen.

Method used

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  • Display panel driving method, device and display device
  • Display panel driving method, device and display device
  • Display panel driving method, device and display device

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Embodiment Construction

[0029] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Preferred embodiments of the application are shown in the accompanying drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the application more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ill...

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Abstract

The invention relates to a display panel driving method and device, and a display device. The display panel driving method is used for improving the gray scale precision of a display panel. The display panel driving method comprises the following steps: two-time scanning signals are output in each sub-time unit, wherein the time required for completing display of one frame of graph is composed oftwo or more sub-time units; the first-time scanning signal is defined as a first scanning signal, and the second-time scanning signal is defined as a second scanning signal; electric potential responding to the first scanning signal enables a controlled transistor to be conducted by inputting a first data signal capable of enabling the display panel to emit first preset brightness; and electric potential responding to the second scanning signal enables the controlled transistor to be conducted by inputting a second data signal capable of enabling the display panel to emit second preset brightness. The problem of non-uniform image brightness caused by low gray scale precision of the display panel due to the fact that the process difference and the voltage amplitude are not easy to accurately control can be solved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a method and device for driving a display panel. Background technique [0002] Organic light emitting diodes (Organic Light Emitting Diode, OLED) can be divided into passive matrix driving (Passive Matrix OLED, PMOLED) and active matrix driving (Active Matrix OLED, AMOLED) according to the driving method. Among them, the PMOLED emits light only during data writing, but does not emit light when data is not written. This driving method is simple in structure, low in cost, and easy to design, and is mainly suitable for small and medium-sized display devices. [0003] The current I flowing through the OLED device oled The magnitude of the amplitude is determined by the voltage V on the data line data It is determined that when the voltage value sent by the data line is higher, the current I oled The larger, otherwise the current I oled will become smaller. By control...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3266G09G3/3275
CPCG09G3/3266G09G3/3275
Inventor 张合静
Owner HKC CORP LTD
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