1.-17. (canceled)
18. A display substrate comprising:
a plurality of spaced apart gate lines each extending in a first direction and formed in a display area of the display substrate;
a gate driving circuit formed in a peripheral area surrounding the display area, the gate driving circuit including a plurality of circuit stages connected to the gate lines and a dummy stage connected to a last circuit stage of the circuit stages; and
a plurality of gate connecting lines connecting the circuit stages to the gate lines and formed in the peripheral area, each of the gate connecting lines including a portion extending in a second direction crossing the first direction.
19. The display substrate of claim 18,
wherein the gate connecting have a L-shape or a S-shape.
20. The display substrate of claim 18, further comprising:
an alignment film formed in the display area and also in the peripheral area adjacent to end portions of the gate lines in the peripheral area.
21. The display substrate of claim 18,
wherein each of the circuit stages being disposed at the higher portion of the gate line corresponding to the circuit stage.
22. The display substrate of claim 18, further comprising a sub-gate line formed adjacent to each of the gate lines in the display area,
wherein the circuit stages comprise:
first sub-stages formed in the peripheral area and connected to first to m-th gate lines (m is a natural number) of the gate lines; and
second sub-stages formed in the peripheral area, connected to (m+1)-th to n-th gate lines (n is a natural number more than m) and connected to first to (n\u2212m)-th sub-gate lines,
wherein the gate driving circuit further comprises third sub-stages connected to ((n\u2212m)+1)-th to n-th sub-gate lines.
23. The display substrate of claim 22, wherein the dummy stage is connected to a last third sub-stage of the third sub-stages.
24. The display substrate of claim 22, wherein a pixel formed in the display area comprises:
first and second transistors connected to each of the gate lines; and
a third transistor connected to a sub-gate line adjacent to the gate line, and the first and second transistors.
25. The display substrate of claim 18, further comprising a wiring part adjacent to the gate driving circuit and formed in the peripheral area, wherein the wiring part comprises;
a Vss voltage supplying line extending in the second direction, and supplying a Vss voltage supply signal;
a clock line extending in the second direction, and applying a clock signal;
a voltage supplying cross-connecting line extending in the first direction to connect the Vss voltage supply line to the gate driving circuit; and
a clock cross-connecting line extending in the first direction to connect the clock line to the gate driving circuit.
26. The display substrate of claim 25, wherein a portion in which the voltage supplying line and the clock connecting line intersect with each other and a portion in which the clock line and the voltage supplying connecting line intersect with each other are disposed in the peripheral area.
27. The display substrate of claim 18, further comprising a plurality of single stages,
wherein the single stages formed in the peripheral area and connected from a last circuit stage of the circuit stages,
wherein the dummy stage connected to a last single stage of the single stages.
28. The display substrate of claim 27, further comprising a sub-gate line formed adjacent to each of the gate lines in the display area,
wherein the single stages comprise:
first single stage formed at the lower portion of the n-th sub gate line and connected to (n\u22122)-th sub-gate line;
second single stage connected to (n\u22121)-th sub gate line; and
third single stage connected to n-th sub-gate line.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method of producing a disk cutter, comprising the steps of:
preparing an annular disk-shaped base adapted to be driven about an axis of rotation;
forming a plurality of tip supports along the outer circumference of said base so that a gullet is defined between adjacent ones of said tip supports;
preparing a plurality of cutting tip inserts, each of said cutting tip insets having a pair of rakes inclined from the opposite side surfaces of each tip insert to the center of the thickness of each tip insert so as to define a first V-shaped groove;
brazing said cutting tip inserts to said respective tip supports so that said rakes are inclined radially inwardly and rearwardly with respect to the rotational direction of the disk cutter; and
grinding each of said brazed tip insets to form a pair of flanks inclined from opposite side surfaces of each tip insert to the center of the thickness of each tip insert so as to define a second V-shaped groove.
2. The method of producing a disk cutter according to claim 1, wherein said rakes are formed simultaneously with sintering of each tip support in a die.
3. A method of producing a disk cutter according to claim 1, wherein said rakes are formed by grinding each of sintered tip insert.