A conversion circuit, display panel and display device
A technology for converting circuits and converters, applied in electrical components, static indicators, generating electrical pulses, etc., can solve problems such as metal short circuits, and achieve the effect of preventing short circuits and reducing electrochemical ionization corrosion.
Active Publication Date: 2021-09-28
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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Problems solved by technology
[0003] In view of this, the embodiment of the present invention provides a conversion circuit, a display panel and a display device, which are used to solve the problem of two adjacent signal lines of the drive circuit on the COF in the prior art due to the constant output of signals with opposite polarities. Electrochemical dissociation of the metal of the root signal line to form a short circuit
Method used
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[0054] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0055] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0056] figure 1 It is a schematic structural diagram of an embodiment of a display device provided by an embodiment of the present invention.
[0057] refer to figure 1 , the display device includes a display panel 1 and a flexible circuit board 2 , and the display panel 1 and the flexible circuit board 2 are electrically connected. The display panel 1 includes a non-display area 11 and a display area 12, and a shift register c...
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Embodiments of the present invention provide a conversion circuit, a display panel and a display device. A conversion circuit is added to the non-display area of the display panel. The first input terminal and the second input terminal of the conversion circuit respectively receive the first input signal and the second input signal output by the drive chip through two adjacent signal lines, and the first output terminal and the second output end respectively output the first output signal and the second output signal to the shift register circuit. The switch signal input terminal receives different switch control signals to control the first output terminal to select one of the input terminals, and the second output terminal to select the other input terminal, so that the first input output from the adjacent two signal lines of the drive chip When the polarity of the signal and the second input signal are different and the polarities are alternately switched, the polarities of the first output signal and the second output signal are consistent at any time.
Description
【Technical field】 [0001] The present invention relates to the technical field of display panels, in particular to a conversion circuit, a display panel and a display device. 【Background technique】 [0002] Most of the existing display panels (flexible display panels or liquid crystal display panels) are driven by COF (Chip On Film, chip-on-film), and the driving circuit (or driving chip) on the COF outputs the driving signal to the shift register of the display panel. (Vertical Shift Register, VSR) circuit to drive the display panel to work. However, since the driving circuit on the COF has the situation that the driving voltage polarity of two adjacent signal lines is opposite and the voltage difference is large, when the two signal lines maintain a constant voltage difference, there is an electric field effect between the two signal lines, The metal of the circuit itself on the COF will dissociate electrochemically and move along the direction of the electric field. After...
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IPC IPC(8): G09G3/36
CPCG09G3/3614G09G3/3648G09G3/2096G09G2310/0286G09G2310/08G09G2320/043G09G2330/04G09G2370/08G06F1/04G09G3/3677H03K3/353
Inventor 刘川付俊杰余志华向天龙
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD