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A kind of oled display panel, its driving method and display device

A technology of a display panel and a driving method, applied in static indicators, instruments, semiconductor devices, etc., can solve the problem of uneven brightness and darkness of the display screen, and achieve the effect of improving the inconsistency of PVDD voltage drop and solving the uneven display.

Active Publication Date: 2019-04-16
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiments of the present invention provide an OLED display panel, its driving method, and a display device, which are used to solve the problem of uneven brightness and darkness of the display screen due to the existence of special-shaped regions in the dimming mode in the prior art.

Method used

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  • A kind of oled display panel, its driving method and display device
  • A kind of oled display panel, its driving method and display device
  • A kind of oled display panel, its driving method and display device

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Embodiment Construction

[0056] At present, in order to realize full-screen display of some mobile phones, such as Figure 1a and Figure 1b As shown, devices such as cameras and earpieces are arranged in the special-shaped area B, so that the number of pixels in a row in the first display area A1 is less than that in the second display area A2. Alternate stripes move downward continuously, and the number of bright pixels in the entire display area is different at different moments, for example, when the light and dark stripes move to Figure 1a In the position shown, the number of bright pixels in the entire display area is the least, when the light and dark stripes move to Figure 1b When the position is set, the number of bright pixels in the entire display area is the largest, and the inconsistency of the number of bright pixels at different times will lead to inconsistent voltage drops of the power supply voltage (PVDD) in the OLED display panel, resulting in the problem of uneven display.

[005...

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Abstract

An organic light emitting (OLED) display panel, a driving method thereof, and a display apparatus are provided. The OLED display panel comprises a display region including N number of pixel rows and a non-display region including a light-emitting driver circuit and a scanning driver circuit. The display region includes a first display region including N1 number of pixel rows and a second display region including N2 number of pixel rows, where N1, N2, and N are positive integers, and N1+N2=N. A pixel row in the second display region has a smaller number of pixels than a pixel row in the first display region. The light-emitting driver circuit is configured to, in scanning time S for each frame, supply a light-emitting control signal having n number of light-emitting cycles to each pixel row in the display region, where n is a positive integer.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED display panel, a driving method thereof and a display device. Background technique [0002] Organic electroluminescence (Organic light-emitting diodes, OLED) display panel is a display device that is packaged and molded using organic materials, which has the advantages of low operating voltage, fast response speed, high luminous efficiency, wide viewing angle and wide operating temperature. It is beneficial to the thinning, low power consumption and curved surface design of the display device. [0003] At present, in display devices such as mobile phones using OLED display panels, in order to solve afterimages without affecting the display brightness, a dimming mode is generally used for driving, so that the display area of ​​the OLED display panel presents a continuous Light and dark stripes scrolling down. Contents of the invention [0004] The embodiments of the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208H01L27/32
CPCG09G3/3266G09G2310/0221G09G2320/0233G09G2320/0626G09G2300/0404G09G2320/0257
Inventor 周星耀冷传利李元高娅娜李玥朱仁远向东旭
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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