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| Method for making a wafer-pair having sealed chambers |
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| Method to produce germanium layers |
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| Method of crystallizing amorphous material with a moving energy beam |
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| Method for fabricating semiconductor device and method for producing liquid crystal display apparatus |
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| Laser processing method of semiconductor device |
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| Method for producing insulated gate thin film semiconductor device |
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Self-scanning light-emitting array and a driving method of the array
| Details |
Inventors: Kusuda, Yukihisa; Tone, Kiyoshi; Yamashita, Ken; Tanaka, Shuhei;
Assignee: Nippon Sheet Glass Co., Ltd. (Osaka, JP)
Primary Examiner: Weldon; Ulysses
Assistant Examiner: Wil; Xiao M.
Attorney, Agent or Firm: Parmelee, Bollinger & Bramblett
A self-scanning light-emitting element array is disclosed. A coupled array of light-emitting elements is constituted so that a light-emitting element which is turned on influences a light-emitting element to be turned on next so that its threshold level is changed. When each element is clock-driven by a common drive pulse, the change in threshold level is shifted in the array direction, so that a turn-on operation is transferred in a clock period of the drive pulse. |
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DETAILED DESCRIPTION It is an object of the present invention to solve the conventional problems, e.
g.
, the number of wire bonding pads, drive ICs, miniaturization, and a decrease in pitch, by providing a self-scanning function to a light-emitting element array itself.
When the light-emitting array has an optical scanning function, almost all drive ICs are not required as well as most of wire bonding pads can be omitted, and the above-mentioned problems can be solved.
It is another object of the present invention to provide a light-emitting array which can stably and reliably perform turn-on self-scanning.
It is still another object of the present invention to provide a self-scanning light-emitting array which can facilitate external control, and can widen a control margin so as not to cause an erroneous operation.
It is still another object of the present invention to provide a self-scanning light-emitting element array which has a simple integrated circuit structure to facilitate its manufacture.
It is still another object of the present invention to provide a self-scanning light-emitting element array which has directivity in a self-scanning function in an element array direction so that turn-on transfer can be performed by two-phase clocks.
It is still another object of the present invention to provide a self-scanning light-emitting element array which can allow control for increasing a luminance of at least one element at an arbitrary position in the light-emitting element array, so as to obtain an image display function.
It is still another object of the present invention to provide a self-scanning light-emitting element array which can obtain light-point scanning performance sufficiently finer than an array pitch of light-emitting elements.
It is still another object of the present invention to provide a method of driving a light-emitting element array, suitable for stably and reliably performing self-scanning of the light-emitting element array, and simplifying an integrated circuit structure of the array
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