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Display screen driving method and system based on FPGA

A driving method and display technology, applied in the direction of static indicators, instruments, etc., can solve the problems of lack of advantages and inflexibility of dedicated chips, and achieve the effect of adding additional screens, flexible development, and strong flexibility

Inactive Publication Date: 2021-06-25
中航华东光电有限公司
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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a method and system for driving a display screen based on FPGA, so as to solve the problem that the display screen in the prior art converts the received HDMI signal into a MIPI signal by using a dedicated chip for conversion, However, due to the lack of flexibility in the development of dedicated chips, it is a technical problem that there is no advantage in realizing functions such as displaying character screens and contrast adjustment after the signal is disconnected

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  • Display screen driving method and system based on FPGA

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0033] The specific embodiment of the present invention provides a kind of display screen driving method based on FPGA, such as figure 1 Shown is the principle schematic diagram of the method embodiment of the present invention, comprises the following steps:

[0034] In the first step, the HDMI decoder receives the external video, the external video is an HDMI video signal generated by the video signal source, and the resolution is 1440*2560@60Hz.

[0035] In the second step, the HDMI decoder converts the HDMI video signal into a single optical three-primary color (RGB) signal, namely: R0~R7, G0~G7, B0~B7, HS, VS, EN, CLK. Among them, R is the red channel, G is the green channel, B is the blu...

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Abstract

The invention discloses a display screen driving method and system based on an FPGA (Field Programmable Gate Array) in the technical field of video signal processing, and aims to solve the problems that in the prior art, a display screen needs to convert received HDMI (High Definition Multimedia Interface) signals into MIPI (Mobile Industry Processor Interface) signals by adopting a special chip, but the development of the special chip is not flexible, the technical problem that the functions of character picture display, contrast adjustment and the like after the signal is disconnected do not have advantages is solved. The method comprises the following steps: in response to generation of an external time sequence signal, transmitting a video signal corresponding to the external time sequence signal to a display screen; and in response to disappearance of the external time sequence signal, transmitting the pre-generated character picture to the display screen.

Description

technical field [0001] The invention relates to an FPGA-based display screen driving method and system, belonging to the technical field of video signal processing. Background technique [0002] With the popularization of organic light-emitting semiconductor (Organic Electroluminesence Display, OLED) screen applications and the high requirements of users for display effects, the transmission speed of small-sized screens is getting higher and higher, and 2K and 4K high-definition images are more and more widely used. Processing requirements are also getting higher and higher. At present, the short-distance transmission of high-definition images is mostly based on the Mobile Industry Processor Interface (MIPI). The transmission bandwidth of a single channel can reach 1.5Gsps. The external interface of the OLED screen has dual and single MIPI interfaces. When transmitting high-speed data, it is necessary to adopt compression coding method, which requires the cooperation of com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/3208
CPCG09G3/3208G09G3/2096
Inventor 吴豪杰沈丙娇陈召全王竞许翔
Owner 中航华东光电有限公司
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