Power-consumption-saving high-refresh panel driving circuit and design method

Abstract

The invention discloses a power-consumption-saving high-refresh panel driving circuit and a design method, the power-consumption-saving high-refresh panel driving circuit comprises a GIP input signal and a GIP output stage transmission signal, a VGH high level and a VGL low level at the upper part of the driving circuit are respectively connected with a T1 device and a T7 device, the T1 device and the T7 device are respectively connected with a Gn-4 and a Gn + 4, the T1 device and the T7 device at the upper part are connected with a Q-point voltage position, a Q point voltage position is connected with a T4 device and a C2 capacitor, a C1 capacitor is connected between the T2 device and the T3 device, a CK clock signal is connected to the C1 capacitor, a T6 is connected with a C3 capacitor, an A point voltage position is connected between the C2 capacitor and the C3 capacitor, the A point voltage position is respectively connected with a T8 device and a T9 device, the T8 device is respectively connected with a Gn-4 and a Gn-3, and the T9 device is respectively connected with a Gn + 3 and a Gn + 4. Through the two-stage coupling scheme of the Q-point voltage position, under the condition that the voltage of the Q-point voltage position is not changed, the driving VGH high-level voltage can be reduced, the driving VGH voltage can be reduced, and the panel power consumption can be effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of display devices, and in particular relates to a power-saving high-refresh panel drive circuit and a design method. Background technique [0002] For example, the Chinese patent application number CN202110274341.8 discloses a front-end processing circuit, which is coupled to the panel driving circuit and precedes the panel driving circuit. The front-end processing circuit includes a sub-pixel rendering module and a compensation module. The sub-pixel rendering module is used for receiving the first signal, performing sub-pixel rendering processing on the first signal, and outputting the second signal. The compensation module is respectively coupled to the sub-pixel rendering module and the panel driving circuit, and is used for compensating the second signal and outputting the third signal to the panel driving circuit. [0003] But there is following deficiency in above-mentioned scheme: [0004] 1. The ...

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Problems solved by technology

[0004] 1. The above circuit only solves the problem that the original built-in memory of the panel drive circuit is insufficient, so additional memory capacity needs to be increased. However, the display of the liquid crystal display panel is completed by controlling the pixel TFT in the plane, specifically through the horizontal gate The pole signal controls the on and off of the TFT and the vertical source signal writes the data to be displayed. The gate signal is generated by the gate drive circuit on both sides of the panel, referred to as the GIP drive circuit; The requirements are getting higher and higher. Today's TFT-LCD panels are mainly developing in the direction of high refresh and high resolution, so the power consumption of the panels is gradually increasing. For mobile devices, power consumption is one of the most important parameters. ; With the increase of the refresh rate, there is a lack of a GIP circuit, which can save power consumption compared with the traditional GIP circuit

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