Driving control device and method for scanning LED display screen

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: 2015-04-01
XIAN NOVASTAR TECH
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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 p

Method used

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

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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 driving control device and a driving control method for scanning an LED display screen. The driving control device is suitable for being used in M scanning LED display screens and comprises a sub field part arranging module and a sub field part achieving order arranging module, wherein the sub field part arranging module is used for arranging and partitioning practical total sub field numbers necessary for achieving each gray level corresponding to a plurality of gray level data into N sub field parts, and used for adding N virtual scanning sub fields; the sub field part achieving order arranging module is used for confirming the achieving order of the N sub field parts corresponding to achievement of each gray level corresponding to the gray level data, and N virtual scanning sub fields, wherein a preset mode comprises a mode that a virtual scanning sub field is firstly achieved before each round of M scanning, and the gray level data in the virtual scanning sub fields are identical to those of sub fields corresponding to each scanning of one same round of scanning. Through the adoption of the driving control device and method, the problem that in the prior art the first scanning is slightly dark when a low gray level image is displayed is solved.

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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IPC IPC(8): G09G3/32
Inventor 刘德福梁伟
Owner XIAN NOVASTAR TECH
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