Control method and device for realizing frequency synchronization, and LCD TV
A technology of LCD TV and frequency synchronization, applied in the field of communication, can solve the problem of poor working stability of LCD TV, and achieve the effect of improving working stability
Active Publication Date: 2019-02-15
HISENSE VISUAL TECH CO LTD
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Problems solved by technology
[0009] Based on this, an object of the present disclosure is to provide a control method for realizing frequency synchronization, which is used to solve the problem of poor working stability of LCD TVs in the prior art
[0010] In addition, another object of the present disclosure is to provide a control device for realizing frequency synchronization, which is used to solve the problem of poor working stability of LCD TVs in the prior art
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[0031] Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.
[0032] figure 1 An implementation environment involved in a control method for realizing frequency synchronization. The implementation environment is set inside the LCD TV 100 , and the LCD TV 100 includes at least one main drive control chip 110 , multiple column drive control chips 130 and a front-end motherboard chip 150 . Data transmission is performed between the main driving contro...
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Disclosed are a controlling device and method for frequency synchronization as well as a LCD TV. The method is applied to an LCD TV, wherein the LCD TV includes a front-end motherboard chip, a main drive control chip and a plurality of column drive control chips, the method includes: when the main drive control chip recognizes that its operating frequency is unstable, it generates a clock turn-off signal; the main drive control chip transmits fixed data to each column drive control chip according to the clock turn-off signal and receives a clock training request initiated by each column drive control chip according to the fixed data; and when recognizing that the operating frequency synchronizes with a frequency corresponding to front-end data transmitted by the front-end motherboard chip, the main drive control chip responds to the clock training request and transmits clock training data to each column drive control chip.
Description
technical field [0001] The present disclosure relates to the field of communication technologies, and in particular to a control method and device for realizing frequency synchronization, and a liquid crystal television. Background technique [0002] From traditional black and white to color, from standard definition to high definition, from the current ultra-high definition 4K2K to the future 8K4K, as the display resolution increases, the amount of data to be transmitted inside the LCD TV also increases, especially the display panel. The amount of data transmitted between drive control circuits (such as main drive control chips and column drive control chips) increases exponentially with the improvement of display resolution. [0003] For example, the commonly used interface for display panels is usually mini-LVDS, and the transmission rate is usually 300MHz. When maintaining the same transmission protocol for data transmission, when the display panel is a high-definition ...
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IPC IPC(8): H04N5/04H04N5/44
CPCG09G3/3611G09G2370/08H04N9/475
Inventor 张士利房好强田清华张忠军
Owner HISENSE VISUAL TECH CO LTD