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Driving control device and method for scanning LED display

An LED display and scanner technology, applied in static indicators, instruments, etc., can solve the problem of the first scan of the scanning LED display being dark and so on

Active Publication Date: 2017-09-05
XIAN NOVASTAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Therefore, in order to overcome the problem that the first scan of the LED display screen is dark in the prior art, the present invention proposes a driving control device and method for scanning the LED display screen.

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  • Driving control device and method for scanning LED display
  • Driving control device and method for scanning LED display
  • Driving control device and method for scanning LED display

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Embodiment Construction

[0017] In order to further explain the technical means and effects adopted by the present invention to achieve the intended purpose of the invention, the specific implementation and effects of the drive control device and method for scanning LED display screens proposed according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. , as detailed below.

[0018] Figure 4 It is a schematic diagram of functional modules of a scanning LED display drive control device according to an embodiment of the present invention. Such as Figure 4 As shown, the scanning LED display screen drive control device 10 realizes the gray level of the gray level data of the input video information through the subfield method, which includes: a subfield part arrangement module 11, a subfield part realization sequence arrangement module 13 and an output module 15 .

[0019] Wherein, the subfield part arrangement module 11 is used ...

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Abstract

The invention relates to a scanning LED display screen drive control device and method. Wherein, the drive control device is suitable for application in M-scan LED display screens, including: a subfield part arrangement module, which is used to arrange and divide the actual total number of subfields required for each grayscale realization corresponding to the plurality of grayscale data into N sub-field parts and N virtual scanning sub-fields are added; the sub-field part implements a sequential arrangement module, which is used to determine the N sub-field parts and N sub-field parts corresponding to each gray-scale implementation corresponding to multiple gray-scale data in a preset manner The realization sequence of the virtual scanning subfield; the preset method includes: making each round of M-scanning before realizing a virtual scanning subfield, the grayscale data contained in the virtual scanning subfield is the same as the subfield corresponding to the first scan in the same round of scanning Contains the same grayscale data. The invention can solve the problem in the prior art that the first scan is too dark when displaying low-grayscale pictures.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to the field of display control technology, in particular to a driving control device and method for scanning LED display screens. Background technique [0002] The traditional scanning LED display using on-off driver chips can see the problem of darkening the first scan when displaying low grayscale images, and the increase in the number of scans or the refresh rate of the LED display will aggravate this problem. The reason for this problem is as follows: [0003] At present, the grayscale display of the scanning LED display is realized through subfields. Each subfield sends a certain 1bit (bit) of grayscale data, and then realizes the corresponding weight of the bit by controlling the opening time of the output channel of the driver chip. Usually, in order to increase the refresh rate of the scanning LED display, it is not to achieve the gray level of a certain line befo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32
Inventor 刘德福梁伟
Owner XIAN NOVASTAR TECH
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