Display panel driving device and configuration method thereof

Abstract

The invention provides a display panel driving device and a configuration method thereof. The display panel driving device includes: a first timing controller, a second timing controller connected to the first timing controller, and a first flash memory chip connected to the first timing controller; the first flash memory chip is used to store the first The driving code and the second driving code; the first timing controller is used to load the first driving code from the first flash memory chip at the first time, and establish the driving configuration according to the first driving code, and load the first driving code from the first flash memory chip at the second time The second driving code is transmitted to the second timing controller; the second timing controller is used to receive the second driving code and establish the driving configuration according to the second driving code, which can realize the configuration of two timing controllers through one flash memory chip , can reduce the number of flash memory chips, simplify the difficulty of circuit wiring, reduce product costs, and improve storage resource utilization.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel driving device and a configuration method thereof. Background technique [0002] With the development of display technology, liquid crystal displays (Liquid Crystal Display, LCD) and other flat display devices are widely used in mobile phones, televisions, personal Various consumer electronic products such as digital assistants, digital cameras, notebook computers, and desktop computers have become the mainstream of display devices. [0003] Usually, the liquid crystal display panel consists of a color filter substrate (CF, Color Filter), a thin film transistor substrate (TFT, ThinFilm Transistor), a liquid crystal (LC, Liquid Crystal) sandwiched between the color filter substrate and the thin film transistor substrate, and a sealant frame (Sealant )composition. [0004] When the liquid crystal display panel works, it needs to be driven by an external d...

AI Technical Summary

Problems solved by technology

[0005] As the size and resolution of liquid crystal display devices increase, the requirements for timing controllers of liquid crystal display devices are also getting higher and higher. For ultra-high-definition 120Hz or 8K 120Hz liquid crystal display devices, a single timing controller is difficult to meet production requirements , for this reason, a technical solution including multiple chip drivers is proposed, that is, multiple timing controllers are set in the liquid crystal display device to work at the same time, and each timing controller corresponds to controlling a corresponding sub-region, that is, each timing controller can only obtain And process the data (such as video data) in its corresponding sub-area, each timing controller is provided with a flash memory chip (Flash), that is, each timing controller is connected with a flash memory chip (such as two timing controllers need two flash memory chip), each timing controller obtains its corresponding drive code (Code) from its corresponding flash memory chip respectively, however, since each timing controller corresponds to a flash memory chip, the number of flash memory chips is too large, and a large amount of time is required Wiring space, and each flash memory chip needs a set of connecting wires, for example, each flash memory chip needs chip select (CS), write protection (WP), input (DI), output (Do) and clock (CLK) five connections A ground wire is needed to connect the timing controller, and a ground wire is needed to connect to the power supply. Too many wires will increase the cost and wiring complexity of the control board (Control Board, CB); and the flash memory chip The actual function is only to store the driver code. When multiple chips are driven, the existence of multiple flash memory chips is redundant in actual use, and the storage resources are not fully utilized. At the same time, each existing timing controller corresponds to a flash memory chip The scheme not only takes up a lot of wiring space, but also increases the wiring cost and wiring complexity, and the resources are also effectively used, which is completely inconsistent with the principle of simple and clear circuit board design.

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