Bidirectional Gate Driver Circuit Using Recharging and Time-Division Driving Scheme for In-Cell Touch LCDs

High‐reliability gate driver on array using noise sharing of precharging node for thin film transistor–liquid crystal display application

“…Take previous studies, [15][16][17][18][19][20][21] for example. The former structure uses the DC voltage collocated with diode-connecting TFT, 15,21 and the latter structure uses coupling signal of driving clock [16][17][18][19][20] to charge the low-level holding TFTs like T7, T8, T14, and T15 for preventing the noise. In Hu et al, 15 the bipolar pulses and two replicated noise-free blocks are used to reach full-time noise free and F I G U R E 1 Gate driver with parallel bipolar pulses noise-free block 15…”

“…Furthermore, decreasing the fabrication cost is one of the most important demand for the display market. As a result, the integrated gate driver 1–21 based on amorphous silicon thin‐film transistors (a‐Si TFTs) has become a main stream in generation of display nowadays because it provides many advantages including reduction in the cost by eliminating external driver ICs and bonding connections, improvement on compactness and reliability, and simplification of data driver configuration.…”

“…The structure of noise‐free blocks are divided into two types: diode‐connecting and clock‐coupling. Take previous studies, 15–21 for example. The former structure uses the DC voltage collocated with diode‐connecting TFT, 15,21 and the latter structure uses coupling signal of driving clock 16–20 to charge the low‐level holding TFTs like T7, T8, T14, and T15 for preventing the noise.…”

Simulation Study of Overlap Capacitance in Source-Gated Transistors for Current-Mode Pixel Drivers

“…Emissive, OLED-based screens show a performance advantage over competing technologies due to their high contrast [1,2], energy efficient [3,4], flexible [5][6][7] and arbitrary-shape [8][9][10] form factor. Significant progress has been made recently in gate driver circuit design [11][12][13][14] and complex pixel circuits, with timing strategies optimized for age compensation or areal uniformity [15][16][17][18][19][20]. Yet many practical challenges remain [19,21].…”

Multioutputs single‐stage gate driver on array with wide temperature operable thin‐film‐transistor liquid‐crystal display for high resolution application

“…For the high resolution display application, the thousands micrometer width of the main driving TFT is required to drive the gate line of the panel; the modification results in widening the bezel of panel. One method of a previous research could reduce the pull‐down TFT with single path for pulling up and down in the working period, but the reduced area is limited since a driving block of gate driver has to go with one corresponding noise‐free block per stage. The other way to solve the problem is sharing the noise block for multioutputs by sharing the noise‐free block as shown in Figure …”