Column scanning driving method and platform for display screen

A driving platform and driving method technology, applied in static indicators, instruments, etc., can solve the problems of a large number of pins and complex implementation, and achieve the effect of reducing the number, reducing the number of pins, and maintaining flexibility

Inactive Publication Date: 2012-07-04
SICHUAN CCO DISPLAY TECH
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  • Claims
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Problems solved by technology

If the display unit has 256 grayscale changes, the data signal output by the programmable chip to the D / A of each data line is 8 bits, that is, 8 programmable chip pins drive a data line, plus the scan pin , to drive the AMOLED screen, the required programmable pins will reach 6080, the number of pins is large, and the implementation is complicated

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  • Column scanning driving method and platform for display screen
  • Column scanning driving method and platform for display screen
  • Column scanning driving method and platform for display screen

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] The column scan driving method of the display screen of the present invention specifically includes: performing block processing on the column scan line signals of the display screen, outputting the block processed column signals to the column scan lines, the specific process of the block processing is as follows: The scanning time of one line is t, and the data line is divided into n blocks, and the gate time of each block is the same, that is, t / n. It is assumed that there are m data lines in each block, and each data line has x output I / O port for driving, the total number of driving I / O ports is y; the pixel clock frequency of the displayed image is f p , the data output frequency of the I / O port is f, and the conversion frequency of the block is f c , the x, y, f p , f c , m, n and f satisfy the following relationship:

[0033]...

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Abstract

The invention discloses a column scanning driving method and a platform for a display screen, The driving method particularly comprises the following steps: the column scanning line signals of the display screen are subjected to block processing; and the column signals subjected to the block processing are outputted to column scanning lines. According to the column scanning driving method and a platform provided by the invention, through selecting the sub-block number, the number driving I / O and the data clock period, the optimal balance among the I / O number, the I / O output data speed and the block conversion speed is achieved, thereby meeting the display requirements of the display screen; and after the screen is subjected to the block processing, the time-sharing multiplexing for the pin is realized, and only one block is driven at a time, thereby reducing the number of the required pins. The column scanning driving method and the platform for the display screen provided by the invention can greatly reduce the pins of scanning driving signals output by a programmable chip, can maintain the flexibility of the scanning driving, and can effectively support the development of the high-performance display screen.

Description

technical field [0001] The invention belongs to the technical field of display driving, and in particular relates to a method for driving display column scanning and a design of a platform. Background technique [0002] OLED (Organic Light-Emitting Diode) display screen is regarded as the most potential new flat display technology in the next generation, and it has many incomparable advantages of LCD. [0003] As one of the core technologies of OLED display, drive technology is the key to the successful development of high-performance OLEDs. However, the design of dedicated drive ICs often lags far behind the development of display screens, and the cost is high, which has become a factor restricting the development of OLED manufacturers. Therefore, developing an OLED drive platform and mastering the design technology of the platform by itself, providing software and hardware support for the research of OLED drive technology, is one of the core capabilities that an open OLED ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/3208
Inventor 蔡勇
Owner SICHUAN CCO DISPLAY TECH
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