Method and apparatus for repairing a liquid crystal panel

A method of repairing a liquid crystal panel by irradiating a defective pixel of the liquid crystal panel with laser light, comprising:

• identifying the defective pixel including a dust;
• and
• irradiating at least part of an alignment film in the defective pixel outside the dust with laser light while the dust is not substantially irradiated with the laser light in the defective pixel including the dust so that an optical transmittance of the defective pixel becomes lower than an optical transmittance of each of pixels surrounding the defective pixel, wherein,
• a defective pixel not including a dust is irradiated with laser light having a first power, and then irradiated with laser light having a second power lower than the first power, and
• a defective pixel including a dust is irradiated with laser light having a third power lower than the first power and higher than the second power, and then irradiated with laser light having the second power.

A method of repairing a liquid crystal panel by irradiating a defective pixel of the liquid crystal panel with laser light, comprising:

• identifying the defective pixel including a dust;
• determining a non-irradiation area including the dust and an irradiation area not including the dust in the defective pixel including the dust;
• and
• irradiating at least part of an alignment film in the irradiation area with laser light while the non-irradiation area is not irradiated with the laser light so that an optical transmittance of the defective pixel becomes lower than an optical transmittance of each of pixels surrounding the defective pixel, wherein
• the irradiation of the laser light is conducted by irradiation with laser light having a high power followed by irradiation with laser light having a low power.

A method of repairing a liquid crystal panel by irradiating a defective pixel of the liquid crystal panel with laser light, comprising:

• identifying the defective pixel including a dust;
• determining a non-irradiation area including the dust and an irradiation area not including the dust in the defective pixel including the dust;
• and
• irradiating at least part of an alignment film in the irradiation area with laser light while the non-irradiation area is not irradiated with the laser light so that an optical transmittance of the defective pixel becomes lower than an optical transmittance of each of pixels surrounding the defective pixel, wherein,
• a defective pixel not including a dust is irradiated with laser light having a first power, and then irradiated with laser light having a second power lower than the first power, and
• a defective pixel including a dust is irradiated with laser light having a third power lower than the first power and higher than the second power, and then irradiated with laser light having the second power.