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Clock data recovery device and method

A clock data recovery and data sampling technology, applied in static indicators, instruments, etc., can solve problems such as black screen, display panel can not be lit normally, not fully mature, etc., to avoid abnormal work, avoid normal startup, eliminate internal Effect of leakage current

Active Publication Date: 2021-07-02
HEFEI BOE DISPLAY TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current full-screen products are still in the stage of rapid development, not yet fully mature, and there are many problems to be solved
Among them, one of the problems is: when the display panel is started, there is a certain probability that a black screen will appear, and the display panel cannot be turned on normally.

Method used

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  • Clock data recovery device and method

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Embodiment Construction

[0039] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0040] see figure 1 , the source driver chip (Source Integrated Circuit, S-IC) of the display panel includes a CDR module, and the CDR module includes a plurality of sub-modules, such as: analog front-end module 11, clock signal recovery module 13, data sampling module 15 and state judgment Module 17 et al.

[0041] The analog front-end module 11 is an analog front-end (Analog front-end, AFE), which is used to receive a CEDS (Cloc...

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Abstract

The invention discloses a clock data recovery device and method and a display panel. The device comprises an analog front-end module, a monitoring module and a data sampling module, the device monitors an output signal of an analog front-end module through a monitoring module, and sends a control signal to a data sampling module according to a monitoring result; and then, the data sampling module outputs a low level in a delay time according to the control signal, and the delay time is a time difference between the power-on time and the differential signal monitored by the monitoring module. According to the invention, normal starting work of the source electrode driving chip can be ensured, and a blank screen caused by incapability of normal starting of the display panel is avoided.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a clock data recovery device and method. Background technique [0002] With the advancement of science and technology, the current LCD display is gradually developing towards a large screen and a full screen. After the full-screen display panel is assembled into a display, the product carrying the display may work in different environments, which puts higher requirements on the stability of the full-screen product. However, at present, full-screen products are still in the stage of rapid development, not yet fully mature, and there are many problems to be solved. Among them, one of the problems is: when the display panel is started, there is a certain probability that a black screen phenomenon occurs, and the display panel cannot be normally turned on. Contents of the invention [0003] In view of the above problems, the present invention proposes a clock data recovery devic...

Claims

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Application Information

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IPC IPC(8): G09G3/00G09G3/36
CPCG09G3/006G09G3/36
Inventor 马京刘健明赵鹏王会明杨秀琴贺新月
Owner HEFEI BOE DISPLAY TECH CO LTD
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