Organic light emitting diode driving circuit and driving method
A technology of light-emitting diodes and driving circuits, which is applied to static indicators, instruments, etc., can solve the problems of luminous brightness changes of organic light-emitting diodes, threshold voltage shifts, and influence on display effects, etc., to achieve good display effects and ensure stability.
Active Publication Date: 2020-01-14
BOE TECH GRP CO LTD +1
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Problems solved by technology
[0003] In the current OLED display panel, the current driving the OLED is related to the threshold voltage of the driving transistor. In actual use, due to the process, heat generation, etc., the threshold voltage may drift, resulting in the luminescence of the OLED. The brightness changes, affecting the display effect
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[0040] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.
[0041] figure 1 It is a schematic structural diagram of an organic light emitting diode driving circuit shown according to an embodiment of the present invention. The organic light emitting diode driving circuit described in this embodiment can be applied to a display substrate, and the display substrate can include a plurality of pixels, and each pixel can include a plurality of sub-pixels, an...
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The present invention proposes an organic light emitting diode driving circuit, comprising: a first switch unit electrically connected to the first end of the first capacitor and the data line; a second switch unit electrically connected to the second end of the first capacitor and the data line; The third switch unit, the first end is electrically connected to the voltage input end, the second end is electrically connected to the organic light emitting diode, the third end is electrically connected to the first end of the first capacitor; the fourth switch unit, the first end is electrically connected to The first end and the second end of the first capacitor are electrically connected to the second end of the third switch unit; wherein, the first end of the second capacitor is electrically connected to the voltage input end, and the second end of the second capacitor is electrically connected to the second end of the second capacitor. The second terminal of a capacitor. According to the embodiments of the present invention, it can be ensured that the luminous brightness of the organic light emitting diode in the fourth time period is not affected by the threshold voltage of the third switch unit, thereby ensuring the stability of the luminous brightness, so that the display where the organic light emitting diode is located The device has a good display.
Description
technical field [0001] The invention relates to the field of display technology, in particular to an organic light emitting diode driving circuit, an organic light emitting diode driving method, a display substrate and a display device. Background technique [0002] Organic Light-Emitting Diode (OLED, Organic Light-Emitting Diode) display panel has faster response speed and wider viewing angle than traditional liquid crystal display panel, and is an important development direction of future display technology. [0003] In the current organic light emitting diode display panel, the current driving the organic light emitting diode is related to the threshold voltage of the driving transistor. The brightness changes, affecting the display effect. Contents of the invention [0004] The invention provides an organic light emitting diode driving circuit, an organic light emitting diode driving method, a display substrate and a display device to solve the deficiencies in the rel...
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IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2300/0819G09G2300/0852G09G2310/0262G09G2320/0233G09G3/3233G09G2300/0876
Inventor 韩文出杨富成张子鹤代弘伟
Owner BOE TECH GRP CO LTD