US PATENT SUBCLASS 349 / 187
NOMINAL MANUFACTURING METHODS OR POST MANUFACTURING PROCESSING OF LIQUID CRYSTAL CELL

Current as of: June, 1999
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349 /   HD   LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS

187NOMINAL MANUFACTURING METHODS OR POST MANUFACTURING PROCESSING OF LIQUID CRYSTAL CELL {5}
188  DF  .~> Changing liquid crystal phase
189  DF  .~> Injecting liquid crystal
190  DF  .~> Sealing of liquid crystal
191  DF  .~> Aligning liquid crystal with means other than alignment layer
192  DF  .~> Defect correction or compensation

DEFINITION

Classification: 349/187

NOMINAL MANUFACTURING METHODS OR POST MANUFACTURING PROCESSING OF LIQUID CRYSTAL CELL:

(under the class definition) Subject matter which relates to nominal manufacturing processes for producing significant liquid crystal cell structure, or to processes for modifying the liquid crystal cell after fabrication.

(1) Note. Excluded from this subclass are (a) methods of making a liquid crystal cell which are substantially structures in method format, (b) a liquid crystal cell product described in terms of a method of manufacturing the same (e.g., product-by-process, etc.). For example, recitations like "providing a liquid crystal material" does not qualify as a modification of the liquid crystal for this subclass.

(2) Note. Excluded from this subclass are processes having significant manufacturing steps for producing liquid crystal devices which are provided in various manufacturing classes, depending on the steps or combination of steps involved in the process. While plural nominal manufacturing steps are considered significant manufacturing--placing the original in other manufacturing classes, a mandatory cross to this class is required if significant liquid crystal structure is present. See "SEARCH CLASS" notes under the main class definitions for some examples of manufacturing classes that provide for manufacture of liquid crystal devices.

SEE OR SEARCH CLASS

324, Electricity: Measuring and Testing,

770, for testing a liquid crystal device for a fault in an individual circuit component.

430, Radiation, Imagery Chemistry: Process, Composition, or Product Thereof, 20, for a method of making a liquid crystal device with a step of radiation.

438, Semiconductor Device Manufacturing: Process, especially

27+, for methods of packaging a semiconductor electronic device having an additional optical component and subclass 30 for methods of making a semiconductor electronic device including a liquid crystal optical component.