A current control method and device thereof

A current control and current technology, applied in static indicators, instruments, etc., can solve problems such as burn-in of OLED display panels

Active Publication Date: 2019-07-26
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the embodiments of the present invention provide a current control method and its device, so as to solve the technical problem of burn-in of the OLED display panel due to excessive current value

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  • A current control method and device thereof
  • A current control method and device thereof
  • A current control method and device thereof

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Embodiment 1

[0041] figure 1 A flowchart of the current control method provided by the embodiment of the present invention. The current control method provided by the embodiment of the present invention is applied to an organic light emitting diode (OLED) display panel. Specifically, as figure 1 As shown, the current control method provided by the embodiment of the present invention specifically includes the following steps:

[0042] Step 100 , respectively generating correspondences between gray scale brightness and current of at least three colors.

[0043] Optionally, if the number of colors is three, then the three colors include: red, blue and green, i.e. three primary colors; if the number of colors is four, then the four colors include: red, blue, green and white, in addition, using four colors can reduce the power consumption of current detection than using three colors.

[0044] specific, figure 2 The flowchart of step 100 provided for the embodiment of the present invention, ...

Embodiment 2

[0071] Based on the inventive concepts of the foregoing embodiments, Figure 4 A schematic structural diagram of a current control device provided in an embodiment of the present invention, the current control device is applied in an organic light emitting diode (OLED) display panel, such as Figure 4 As shown, the current control device provided by the embodiment of the present invention includes: a preset module 10 , a detection module 20 , a search module 30 , a comparison module 40 and an adjustment module 50 .

[0072] The preset module 10 is configured to respectively generate correspondences between the gray scale brightness and the current of at least three colors.

[0073] Optionally, if the number of colors is three, then the three colors include: red, blue and green; if the number of colors is four, then the four colors include: red, blue, green and white; in addition, The use of four colors can reduce the power consumption of current detection compared with the us...

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Abstract

Embodiments of the present disclosure disclose a current control method and an apparatus thereof. The current control method includes: generating a correspondence between grayscale brightness and a current of a display panel; detecting, in a blank interval of a display period, an actual current value and an actual grayscale brightness of the display panel; determining a target current value by looking up a correspondence between the grayscale brightness and the current according to a target grayscale brightness of the display panel; and adjusting, based on a comparison of the actual current value and the target current value, the actual grayscale brightness so that the actual current value is less than or equal to the target current value.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular to a current control method and device thereof. Background technique [0002] Organic Light-Emitting Diode (OLED for short) is one of the hotspots in the field of flat panel display panel research. [0003] The inventors found that during the display period of the OLED display panel, since the OLED is a current-type device, when a large current flows through the display panel, the temperature will increase, and the increase in temperature will cause the current value to further increase. In addition, When the OLED display panel is being tested for reliability, when it is put into a high-temperature oxide film chamber, the temperature rise will also lead to a further increase in the current value, and if the current value is too large, the OLED display panel will burn in. Contents of the invention [0004] In order to solve the above technical problem, t...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G09G3/3233
CPCG09G3/3233G09G3/2007G09G3/2092G09G3/3208G09G2320/0626G09G2320/0693G09G2320/041G09G2320/046G09G2360/16
Inventor徐海侠鲍文超
OwnerHEFEI XINSHENG OPTOELECTRONICS TECH CO LTD