Bigrid layout structure for thin film transistor

Abstract

The invention relates to one pixel multi-grating film transistor tube to suppress current leakage, which comprises one snake shape or L shape multi-silicon layer composed of one n+ mixture source electrode, one first n- light mixture area, one first grating groove, one second mixture area, one second grating groove, one third n- light mixture, one n+ weight leakage area; the source electrode is connected to one materials line through oen contact window with length direction along materials line to deposit one grating oxidation electrode.

Description

[0001] The present invention is a divisional application of the patent application with the filing date of April 9, 2003, the application number of 03109443.0, and the invention title of "Double Gate Layout Structure of Thin Film Transistor". technical field [0002] The invention relates to a liquid crystal display technology, in particular to a double-gate thin film transistor structure of a low-temperature polysilicon liquid crystal display. Background technique [0003] Liquid crystal display (LCD) is a flat display with low power consumption. Compared with cathode ray tube (GRT) with the same window size, LCD has great advantages in terms of space and quality. . Therefore, many manufacturers are optimistic about its future and have joined the ranks of production one after another. This also makes its price more popular. Therefore, its products have evolved from small-sized consumer electronics such as palmtop computers, computer dictionaries, watches, mobile phones, a...

AI Technical Summary

Problems solved by technology

[0007] In the above-mentioned double gate structure, the two gates are arranged in parallel along the direction of the scanning line. Unfortunately, in the design that usually includes color filters, the pixels of the three primary colors of red, blue and green are used in the current In terms of layout, they are also side by side and along the scanning line direction, so the resolution of the picture will be limited

Because the sum of the total lengths of the two channels 909c, 909e and the lightly doped region 909d in the middle of the double gate is limited by the current TFT LCD lithography machine, the sum of the lengths will limit the resolution of the entire screen

[0008] Although there is a problem of pixel crowding along the scanning line, which affects the resolution, but along the data line, there is more room for tolerance because the side-by-side direction of the three primary color pixels is not in this direction.

Images