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A mipi C-PHY signal generator and signal generation method thereof

A signal generator and signal generation technology, used in image communication, TV, color TV components and other directions

Active Publication Date: 2021-05-04
WUHAN JINGLI ELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of camera and display pixel and frame rate, the data transmission speed of the previous MIPI D-PHY can no longer meet the current needs, and now the latest MIPI C-PHY standard has been launched

Method used

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  • A mipi C-PHY signal generator and signal generation method thereof

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Embodiment Construction

[0021] In order to better understand the above technical solutions, the above technical solutions will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] The MIPI C-PHY signal generator proposed by the invention adopts the embedded processor Nios II of the FPGA chip for control, and the MIPI C-PHY bridge chip for signal conversion. The FPGA chip includes network data controller, DDR read-write controller, image data to RGB module, RGB to MCU data processing module, SPI module, and the final output is the RGB interface signal or MCU interface signal that can be recognized by the MIPI C-PHY bridge chip. Converted by MIPI C-PHY bridge chip to MIPI C-PHY interface signal for display module with MIPI C-PHY interface.

[0023] The system block diagram of the signal generator based on FPGA chip to realize MIPI C-PHY interface is as follows figure 1 shown. The PC side communicates with the network data controller through the E...

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Abstract

The invention belongs to the field of display technology, and discloses a MIPI C-PHY signal generator and a signal generating method thereof. The signal generator includes an FPGA chip, a MIPI C-PHY bridge chip, and the FPGA chip includes an embedded processor Nios II, a network data Controller, DDR read-write controller, image data to RGB module, RGB to MCU data processing module; controlled by the embedded processor Nios II of the FPGA chip, the image data is converted into RGB interface signal or MCU interface signal and then output. Convert RGB interface signal or MCU interface signal to MIPI C-PHY interface signal through MIPI C-PHY bridge chip. The invention can support all display modes of the MIPI C-PHY interface display module.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a MIPI C-PHY signal generator and a signal generation method thereof. Background technique [0002] MIPI D-PHY is widely used in the part where the processor is connected to the display screen and camera. With the increase of pixels and frame rates of cameras and display screens, the data transmission speed of the previous MIPI D-PHY can no longer meet the current needs, and now the latest MIPI C-PHY standard has been launched. [0003] Compared with MIPI D-PHY, MIPI C-PHY supports higher resolution and refresh rate. LCD and OLED module manufacturers have put MIPI C-PHY on the research and development agenda as a next-generation product. Some manufacturers have already released samples. It also accelerates the demand for MIPI C-PHY interface display module testing equipment. SUMMARY OF THE INVENTION [0004] The purpose of this application is to provide a MIPI C-PHY ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/765H04N7/01
Inventor 周辉
Owner WUHAN JINGLI ELECTRONICS TECH