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Transmission gate multiplexing circuit and liquid crystal display panel based on ltps

A multiplexing and transmission gate technology, applied in the field of liquid crystal display, can solve the problem of too many IC control signals, and achieve the effect of avoiding spare parts, reducing the length, and being beneficial to the design.

Active Publication Date: 2018-03-30
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The control signals of the general transmission gate type Demux (multiplexing selector) circuit in the LTPS display panel all need to be drawn from the IC (integrated circuit), which will cause too many IC control signals in the LTPS display panel, increasing the IC design difficulty

Method used

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  • Transmission gate multiplexing circuit and liquid crystal display panel based on ltps
  • Transmission gate multiplexing circuit and liquid crystal display panel based on ltps
  • Transmission gate multiplexing circuit and liquid crystal display panel based on ltps

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Embodiment Construction

[0026] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0027] With the development of LTPS semiconductor thin film transistors, and due to the characteristics of ultra-high carrier mobility of LTPS semiconductor itself, the corresponding integrated circuits around the liquid crystal display panel have also become the focus of attention. More and more people are investing in the related technology research of SOP, and make SOP technology gradually become a reality...

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Abstract

The invention discloses an LTPS-based transmission gate multiplexing circuit and a liquid crystal display panel. The circuit comprises: a transmission gate, which is composed of a pair of N-type transistors and P-type transistors with complementary structures; an inverter, which It is arranged on a switch side of the transmission gate, so that the same turn-on signal before and after the inversion realizes the control of the multiplexing circuit of the transmission gate. The invention reduces the number of lead-out control signal lines, effectively shortens the height of the FOUT area, reduces the length of the lower frame of the display panel, is beneficial to the design of narrow frame, and also avoids large spare parts in the WOA area, reducing the The phenomenon of loading effect caused by uneven metal etching.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to an LTPS-based transmission gate multiplexing circuit and a liquid crystal display panel. Background technique [0002] With the development of LTPS (low temperature polysilicon) semiconductor thin film transistors, and the characteristics of ultra-high carrier mobility of LTPS semiconductor itself, the corresponding integrated circuits around LTPS display panels have also become the focus of attention. More and more people are putting into the research of related technology of SOP (System on Panel, system panel). [0003] The control signals of the general transmission gate type Demux (multiplexing selector) circuit in the LTPS display panel all need to be drawn from the IC (integrated circuit), which will cause too many IC control signals in the LTPS display panel, increasing the IC design difficulty. Contents of the invention [0004] In order to solve the ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/133
CPCG02F1/13306G09G3/36G09G3/3688
Inventor 田勇赵莽
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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