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OLED display panel driving circuit and driving method

A technology for driving circuits and display panels, applied in static indicators, instruments, etc., can solve the problems of aging of OLED devices, different degrees of aging of OLED devices, and afterimages displayed on OLED display panels, and achieve the effect of improving accuracy

Active Publication Date: 2019-03-26
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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  • Application Information

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Problems solved by technology

With the use of the OLED display panel, the OLED device will age, and then the overall brightness of the OLED display panel will decrease.
In addition, the aging degree of OLED devices at different positions in the same OLED display panel is different. Among them, the longer the sub-pixel unit is used and the brightness is higher, the aging of the OLED device is more serious, and the problem of afterimages on the display of the OLED display panel appears.

Method used

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  • OLED display panel driving circuit and driving method
  • OLED display panel driving circuit and driving method
  • OLED display panel driving circuit and driving method

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Embodiment Construction

[0020] Certain words are used to refer to specific components in the description and claims, and those skilled in the art should understand that manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a basis for distinction. The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] figure 1 It is a schematic structural diagram of the OLED display panel according to the first embodiment of the present invention. Such as figure 1 As shown, the OLED display panel 100" includes a plurality of sub-pixel units 10" arranged in an array, and each column of sub-pixel units 10" is provided with a data line Data" and a sensing line respectively connected to the column of sub-pixel units 10".

[0022] The OLED display panel 100" further includes a drivin...

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Abstract

The invention discloses an OLED display panel driving circuit and driving method. An OLED display panel includes a plurality of sub-pixel units arranged in an array, and a data line and an induction line connected with each column of the sub-pixel units are arranged to be corresponding to each column of sub-pixel units. The driving circuit is configured to separately acquire a first anode voltageand a second anode voltage of an OLED device in each sub-pixel unit in a detection mode through the induction line under the condition that the a first data voltage and a second data voltage are applied to the data line, and obtains a compensation gain value corresponding to each sub-pixel unit according to the first anode voltage and the second anode voltage to compensate for aging of the OLED device in each sub-pixel unit according to the compensation gain value. In the above manner, the driving circuit can acquire the compensation gain values of the OLED devices in a relatively accurate manner, and then compensate for the aging of the OLED devices by using the compensation gain values to improve the accuracy of the compensation.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED display panel driving circuit and a driving method. Background technique [0002] Organic light emitting diode (Organic Light Emitting Display, OLED) display panel has self-illumination, low driving voltage, high luminous efficiency, short response time, high definition and contrast, wide operating temperature range, and can realize flexible display and large-area full-color display Lamp has many advantages, and is recognized by the industry as the display panel with the most development potential. [0003] For an OLED display panel, each sub-pixel unit includes an OLED device and a driving circuit for driving the OLED device to emit light. With the use of the OLED display panel, the OLED device will age, and then there will be a problem that the overall brightness of the OLED display panel will decrease. In addition, the aging degree of OLED devices at different posit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/046
Inventor 解红军
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD