摘要:
There is provided a display device capable of preventing a malfunction and a display defect due to an off-leak from occurring even when a circuit in a shift register is configured utilizing thin film transistors of relatively large off-leaks. In at least one embodiment, each of bistable circuits that constitute the shift register includes: a thin film transistor for increasing a potential of an output terminal based on a first clock; a thin film transistor for decreasing the potential of the output terminal; a thin film transistor for increasing a potential of a range netA connected to a gate terminal of the thin film transistor based on a start signal; thin film transistors for decreasing the potential of the range netA; a capacitor for increasing the potential of a range netB connected to a gate terminal of the thin film transistor; and a thin film transistor for decreasing the potential of the range netB.
摘要:
A thin film two-terminal element is formed by laminating a protruding portion of a second conductor layer on a first conductor layer via a nonlinear resistor layer. An insulator layer is positioned between the first conductor layer and the second conductor layer except a region to become the thin film two-terminal element. Therefore, the allowance of the relative position of the second conductor layer with respect to the first conductor layer and the nonlinear resistor layer is considerably large as compared with that of prior art, and it is possible to ensure a requisite alignment margin with respect to deformation of the substrate in the production process.
摘要:
A thin-film two-terminal element including first metal film functioning as a wiring layer and a first electrode, a first insulating film formed on the first electrode of the first metal film and having a non-linear resistance property, a second metal film formed on the first insulating film and functioning as a second electrode, and a third metal film formed in a wire layer portion of the first metal film and having a smaller stress and a smaller electrical resistance than the first metal film, and a thin-film two-terminal element including, on a resinous substrate as an insulative substrate, a first metal film functioning as a wiring layer and a first electrode, a first insulating film formed on the first electrode of the first metal film and having a non-linear resistance property, a second metal film formed on the first insulating film and functioning as a second electrode, and a second insulating film formed under the second metal film except on a portion thereof which electrically functions with the first electrode via the first insulating film.
摘要:
Disclosed is a thin film transistor wherein an ON current is increased and a leak current is reduced. The channel layer 60 of the TFT 10 is formed of a crystalline silicon, and the lower surface of one end of the channel layer 60 is electrically connected to the surface of an n+ silicon layer 40a, and the lower surface of the other end is electrically connected to the surface of an n+ silicon layer 40b. Furthermore, the side surface of said end of the channel layer 60 is electrically connected to a source electrode 50a, and the side surface of the other end is electrically connected to a drain electrode 50b. Thus, a barrier that makes electrons, which act as carriers, not easily transferred is formed on the boundary between the source electrode 50a and the channel layer 60. As a result, the ON current that flows when the TFT 10 is in the ON state can be increased, and the leak current that flows when the TFT is in the OFF state can be reduced.
摘要:
A TFT substrate (20a) includes a plurality of pixel electrodes (17a) provided in a matrix, a plurality of TFTs (5) each provided for a corresponding one of the pixel electrodes (17a), and a plurality of auxiliary capacitors (6a) each provided for a corresponding one of the pixel electrodes (17a). Each of the auxiliary capacitors (6a) includes a capacitor line (11b) made of a material identical to that of the gate electrode (11aa) of the TFT (5) and provided in a layer identical to that of the gate electrode (11aa) of the TFT (5), the gate insulating film (12) provided so as to cover the capacitor line (11b), and a corresponding one of the pixel electrodes (17a) provided on the gate insulating film (12) so as to overlap with the capacitor line (11b) and being in conduction with a drain electrode (14ca).
摘要:
An auxiliary capacitor (6a) includes a capacitor line (11ba), a gate insulating film (12) provided so as to cover the capacitor line (11ba), a semiconductor layer (13b) provided on the gate insulating film (12) so as to overlap with the capacitor line (11b), and a drain electrode (14ba) provided on the semiconductor layer (13b) and connected to a pixel electrode (16a). The semiconductor layer (13b) made of an oxide semiconductor and the pixel electrode (16a) made of an oxide conductor contact each other.
摘要:
An active matrix substrate (20) includes: a gate electrode (11) provided on an insulating substrate (10a); a gate insulating layer (12) covering the gate electrode (11); an oxide semiconductor layer (13) provided on the gate insulating layer (12); and a protective layer (17) covering the oxide semiconductor layer (13). The active matrix substrate (20) has a display region (D) where an image is displayed and a gate terminal region (Ts) located around the display region (D) and including a gate terminal (26) for connection to an external circuit. The gate terminal (26) includes a terminal line (21) provided on the insulating substrate (10a). The terminal line (26) is made of a conductive material different from a material constituting the oxide semiconductor layer (13).
摘要:
A TFT substrate (20a) includes a plurality of pixel electrodes (17a) provided in a matrix, a plurality of TFTs (5) each provided for a corresponding one of the pixel electrodes (17a), and a plurality of auxiliary capacitors (6a) each provided for a corresponding one of the pixel electrodes (17a). Each of the auxiliary capacitors (6a) includes a capacitor line (11b) made of a material identical to that of the gate electrode (11aa) of the TFT (5) and provided in a layer identical to that of the gate electrode (11aa) of the TFT (5), the gate insulating film (12) provided so as to cover the capacitor line (11b), and a corresponding one of the pixel electrodes (17a) provided on the gate insulating film (12) so as to overlap with the capacitor line (11b) and being in conduction with a drain electrode (14ca).
摘要:
A TFT 20 includes a gate electrode 21, a gate insulating film 22, a semiconductor layer 23, a source electrode 24, a drain electrode 25, etc. The semiconductor layer 23 is comprised of a metal oxide semiconductor (IGZO), and has a source portion 23a that contacts the source electrode 24, a drain electrode 23b that contacts the drain electrode 25, and a channel portion 23c that is located between the source and drain portions 23a, 23b. A reduced region 30 is formed at least in the channel portion 23c of the semiconductor layer 23, and the reduced region 30 has a higher content of a simple substance of a metal such as In than the remaining portion of the semiconductor layer 23.
摘要:
The present invention aims at reducing an OFF current in a thin film transistor while maintaining an ON-state current.A TFT (100) includes a glass substrate (101) formed thereon with a source electrode (110) and a drain electrode (112) having their respective upper surfaces formed with n-type silicon layers (120, 121) of microcrystalline silicon. Microcrystalline silicon regions (135, 136) are formed respectively on the n-type silicon layers (120, 121) while an amorphous silicon region (130) is formed on the glass substrate (101), and these are covered by a microcrystalline silicon layer (145). Therefore, ON-state current flows from the drain electrode (112), through the microcrystalline silicon region (135), the microcrystalline silicon layer (145) and the microcrystalline silicon region (136) in this order, and then to the source electrode (110). Also, OFF current is limited by the amorphous silicon region (130).