Method of and apparatus for producing liquid crystal display device

A liquid crystal display device producing method for irradiating a liquid crystal display substrate, in which a plurality of pixels are formed in a matrix state and liquid crystal is sealed between a TFT substrate and a counter electrode substrate, with light having a predetermined wavelength to orient molecules of the liquid crystal toward a predetermined direction in a state in which a predetermined electric field is applied to each of the pixels of the liquid crystal display substrate,

• the method comprising the steps of:
• bringing one surface of the liquid crystal display substrate into contact with a cooling medium;
• and
• irradiating the liquid crystal display substrate with the light having a predetermined light quantity in a state in which the electric field having a predetermined quantity is applied to each of the pixels.

A liquid crystal display device producing method for irradiating a liquid crystal display substrate, in which a plurality of pixels are formed in a matrix state and liquid crystal is sealed between a TFT substrate and a counter electrode substrate, with light having a predetermined wavelength to orient molecules of the liquid crystal toward a predetermined direction in a state in which a predetermined electric field is applied to each of the pixels of the liquid crystal display substrate,

• the method comprising the steps of:
• bringing one surface of the liquid crystal display substrate into contact with a cooling medium;
• irradiating the liquid crystal display substrate with the light having a predetermined light quantity in a state in which the electric field having a predetermined quantity is applied to each of the pixels;
• and
• changing intensity of the electric field applied to each of the pixels at predetermined time intervals while the light irradiation is maintained, when a predetermined time elapses in the light irradiation.

A liquid crystal display device producing method for irradiating a liquid crystal display substrate, in which a plurality of pixels are formed in a matrix state and liquid crystal is sealed between a TFT substrate and a counter electrode substrate, with light having a predetermined wavelength to orient molecules of the liquid crystal toward a predetermined direction in a state in which a predetermined electric field is applied to each of the pixels of the liquid crystal display substrate,

• the method comprising the steps of:
• bringing one surface of the liquid crystal display substrate into contact with a cooling medium;
• and
• performing repeatedly one period, in which the application of the electric field to each of the pixels is ON-OFF-ON-switched, predetermined times to irradiate the liquid crystal display substrate with the light having a predetermined light quantity in an initial ON-time-frame of the one period.

A liquid crystal display device producing apparatus that irradiates a liquid crystal display substrate, in which a plurality of pixels are formed in a matrix state and liquid crystal is sealed between a pair of substrates and a plurality of electrodes for driving the pixels are formed in at least two adjacent edge portions, with light having a predetermined wavelength to orient molecules of the liquid crystal toward a predetermined direction in a state in which a current is passed through each of the electrodes of the liquid crystal display substrate to apply a predetermined electric field to each of the pixels,

• the liquid crystal display device producing apparatus comprising:
• a stage in which a recessed portion for reserving a cooling medium in contact with one surface of the liquid crystal display substrate to cool the liquid crystal display substrate, is formed in a center thereof, and a portion near a peripheral edge in one surface of the liquid crystal display substrate is sucked to an upper surface of a sidewall surrounding the recessed portion to retain the liquid crystal display substrate;
• a prober that is disposed near at least two adjacent edge portions of the stage, and provided with a plurality of terminals to which a current is passed by connecting with the plurality of electrodes of the liquid crystal display substrate retained by the stage;
• and
• a light source device that is disposed above the stage to irradiate the liquid crystal display substrate retained by the state with the light.

A liquid crystal display device producing apparatus that irradiates a liquid crystal display substrate, in which a plurality of pixels are formed in a matrix state and liquid crystal is sealed between a pair of substrates and a plurality of electrodes for driving the pixels are formed in at least two adjacent edge portions, with light having a predetermined wavelength to orient molecules of the liquid crystal toward a predetermined direction in a state in which a current is passed through each of the electrodes of the liquid crystal display substrate to apply a predetermined electric field to each of the pixels,

• the liquid crystal display device producing apparatus comprising:
• a stage in which a recessed portion for reserving a cooling medium in contact with one surface of the liquid crystal display substrate to cool the liquid crystal display substrate, is formed in a center thereof and a portion near a peripheral edge in one surface of the liquid crystal display substrate is sucked to an upper surface to retain the liquid crystal display substrate;
• a plurality of wires that are strung on an opening side of the recessed portion to support the one surface of the liquid crystal display substrate retained by the stage;
• a prober that is disposed near at least two adjacent edge portions of the stage, and provided with a plurality of terminals to which a current is passed by connecting with the plurality of electrodes of the liquid crystal display substrate retained by the stage;
• and
• a light source device that is disposed above the stage to irradiate the liquid crystal display substrate retained by the state with the light.

A liquid crystal display device producing apparatus that irradiates a liquid crystal display substrate, in which a plurality of pixels are formed in a matrix state and liquid crystal is sealed between a pair of substrates and a plurality of electrodes for driving the pixels are formed in at least two adjacent edge portions, with light having a predetermined wavelength to orient molecules of the liquid crystal toward a predetermined direction in a state in which a current is passed through each of the electrodes of the liquid crystal display substrate to apply a predetermined electric field to each of the pixels,

• the liquid crystal display device producing apparatus comprising:
• a stage in which a recessed portion for reserving a cooling medium in contact with one surface of the liquid crystal display substrate to cool the liquid crystal display substrate, is formed in a center thereof and a portion near a peripheral edge in one surface of the liquid crystal display substrate is sucked to an upper surface to retain the liquid crystal display substrate;
• a prober that is disposed near at least two adjacent edge portions of the stage, and provided with a plurality of terminals to which a current is passed by connecting with the plurality of electrodes of the liquid crystal display substrate retained by the stage;
• a voltage supply source that supplies a voltage through the prober to apply the electric field to each of the pixels of the liquid crystal display substrate;
• and
• a light source device that is disposed above the stage to irradiate the liquid crystal display substrate retained by the state with the light,
• wherein intensity of the electric field applied to each of the pixels is changed at predetermined time intervals by the voltage supply source, when a predetermined time elapses in the irradiation of the liquid crystal display substrate with the light by the light source device in a state in which the electric field is applied to each of the pixels, or
• one period, in which the application of the electric field to each of the pixels is ON-OFF-ON-switched, is repeatedly performed predetermined times to irradiate the liquid crystal display substrate with the light having a predetermined light quantity in an initial ON-time-frame of the one period.

A liquid crystal display device producing apparatus that irradiates a liquid crystal display substrate, in which a plurality of pixels are formed in a matrix state and liquid crystal is sealed between a pair of substrates, with light having a predetermined wavelength to orient molecules of the liquid crystal toward a predetermined direction in a state in which a predetermined electric field is applied to each of the pixels of the liquid crystal display substrate,

• the liquid crystal display device producing apparatus comprising:
• a stage in which a recessed portion for reserving a cooling medium in contact with one surface of the liquid crystal display substrate to cool the liquid crystal display substrate, is formed in a center thereof, and a portion near a peripheral edge in one surface of the liquid crystal display substrate is sucked to an upper surface to retain the liquid crystal display substrate;
• and
• a light source device disposed above the stage, in which a plurality of flashlamps that emit the light is provided in a reflector having an opening, the opening having a size corresponding to at least a display region of the liquid crystal display substrate, and a plurality of square-shaped filters is arrayed vertically and horizontally in the opening of the light source device, the filter cutting off transmission of light having a specific wavelength,
• wherein the light source device lights the plurality of flashlamps in each time the light source device moves by one step while moving vertically and horizontally a distance of an integral multiple of an array pitch of the filters.