摘要:
This invention has its object to provide a method of liquid display device production which enables spacer disposition in interelectrode spaces not having electrode, namely at black matrix sites, in STN type and TFT type liquid crystal display devices and further enables even spacer disposition to attain a uniform cell thickness all over the substrate to thereby produce liquid crystal display devices of high contrast and high display uniformity stably and in good yields, with a reduced spray step tact time, as well as liquid crystal display devices produced by such method. This invention provides a method for producing a liquid crystal display device comprising spraying spacers onto at least one of a first substrate comprising at least pattern-forming transparent electrodes and a second substrate to be disposed opposingly above the first substrate and filling a liquid crystal into the space between both the substrates, and comprising, in spraying positively or negatively charged spacers onto the substrate, disposing the substrate in close contact with an earthed conductive stage having a volume resistance of not more than 1010 &OHgr;cm and applying, to the transparent electrodes, a voltage of 200 V to 5 kV having the same polarity as the spacer charge polarity.
摘要:
The present invention has its object to provide a method of spraying particles by which predetermined quantities of particles can be disposed on specified electrodes, in particular a method of spraying particles by which spacers can be sprayed in interelectrode gaps selectively even in the case of substrates comprising pattern-forming transparent electrodes, such as those used in liquid crystal display devices, and a method of producing liquid crystal display devices of high contrast and high display uniformity by which spacers can be disposed in interelectrode gaps without sacrificing the aperture ratio and by which spacers can be disposed on the substrate without irregularity to attain a uniform cell thickness over the whole substrate, as well as a particle spraying apparatus and a liquid crystal display device. The present invention provides a method of spraying particles which comprises applying a voltage of the same polarity as the particle charge polarity to a plurality of electrodes formed on a substrate and spraying the particles while utilizing the repulsive force operating on the particles, wherein means is employed for preventing the particles from being forced out of the electrode domain comprising the plurality of electrodes.
摘要:
The present invention has its object to provide a method of spraying particles by which predetermined quantities of particles can be disposed on specified electrodes, in particular a method of spraying particles by which spacers can be sprayed in interelectrode gaps selectively even in the case of substrates comprising pattern-forming transparent electrodes, such as those used in liquid crystal display devices, and a method of producing liquid crystal display devices of high contrast and high display uniformity by which spacers can be disposed in interelectrode gaps without sacrificing the aperture ratio and by which spacers can be disposed on the substrate without irregularity to attain a uniform cell thickness over the whole substrate, as well as a particle spraying apparatus and a liquid crystal display device.The present invention provides a method of spraying particles which comprises applying a voltage of the same polarity as the particle charge polarity to a plurality of electrodes formed on a substrate and spraying the particles while utilizing the repulsive force operating on the particles, wherein means is employed for preventing the particles from being forced out of the electrode domain comprising the plurality of electrodes.
摘要:
The present invention has its object to provide a method of spraying particles by which predetermined quantities of particles can be disposed on specified electrodes, in particular a method of spraying particles by which spacers can be sprayed in interelectrode gaps selectively even in the case of substrates comprising pattern-forming transparent electrodes, such as those used in liquid crystal display devices, and a method of producing liquid crystal display devices of high contrast and high display uniformity by which spacers can be disposed in interelectrode gaps without sacrificing the aperture ratio and by which spacers can be disposed on the substrate without irregularity to attain a uniform cell thickness over the whole substrate, as well as a particle spraying apparatus and a liquid crystal display device.The present invention provides a method of spraying particles which comprises applying a voltage of the same polarity as the particle charge polarity to a plurality of electrodes formed on a substrate and spraying the particles while utilizing the repulsive force operating on the particles, wherein means is employed for preventing the particles from being forced out of the electrode domain comprising the plurality of electrodes.
摘要:
Provided is a spacer microparticle spraying apparatus capable of selectively disposing spacer microparticles in electrode gaps where no pixels are present even on a substrate carrying an array of stripe electrodes in use for the STN liquid crystal display device, to a spacer particle spraying method and a method of manufacturing a liquid crystal display device which utilize said apparatus. The spacer microparticle spraying apparatus for selective disposition of a charged spacer microparticle on a substrate carrying a plurality of electrodes includes a spraying chamber adapted to accommodate the substrate, a spacer microparticle supply means for supplying the spacer microparticle into the spraying chamber and spraying it on the substrate, and a voltage application means for applying voltages to the electrodes disposed on the substrate, wherein the voltage application means is capable of applying different levels of voltages to the electrodes respectively.
摘要:
The present invention has its object to provide a method of spraying particles by which predetermined quantities of particles can be disposed on specified electrodes, in particular a method of spraying particles by which spacers can be sprayed in interelectrode gaps selectively even in the case of substrates comprising pattern-forming transparent electrodes, such as those used in liquid crystal display devices, and a method of producing liquid crystal display devices of high contrast and high display uniformity by which spacers can be disposed in interelectrode gaps without sacrificing the aperture ratio and by which spacers can be disposed on the substrate without irregularity to attain a uniform cell thickness over the whole substrate, as well as a particle spraying apparatus and a liquid crystal display device. The present invention provides a method of spraying particles which comprises applying a voltage of the same polarity as the particle charge polarity to a plurality of electrodes formed on a substrate and spraying the particles while utilizing the repulsive force operating on the particles, wherein means is employed for preventing the particles from being forced out of the electrode domain comprising the plurality of electrodes.
摘要:
This invention has its objects to provide a liquid crystal display exhibiting excellent display quality having good contrast which quality is not influenced by light leakage resulting from spacers due to the fact that most of the spacers are arranged under a black matrix. This invention is related to a liquid crystal display having a liquid crystal injected into a gap between two substrates arranged to oppose each other through spacers, wherein at least one of said two substrates is a substrate on which a black matrix is formed; at least one of the two substrates is a substrate constituted by aligning a plurality of transparent electrodes; not less than 50% of the spacers are arranged just under a position of the black matrix; and the spacers arranged just under the position of the black matrix are arranged along the transparent electrodes.
摘要:
A liquid crystal display device includes a pair of substrates having a plurality of display-use electrodes formed thereon, a seal for connecting the pair of substrates in such a manner that respective electrode forming surfaces face each other, a liquid crystal layer formed by sealing a liquid crystal in a space surrounded by the pair of substrates and the seal, and dummy electrodes for achieving a uniform thickness of the liquid crystal layer in the display area. The display-use electrodes and the dummy electrodes are interleaved on four sides of the seal, and an absolute value for variations in interleaved ratio in the four sides, indicative of a ratio of an area occupied by the display-use electrodes and the dummy electrodes on the seal is not more than a predetermined value. As this permits a uniform thickness of the seal on the four sides, a difference in brightness between a central portion and a portion in a vicinity of the seal in the display area can be eliminated, thereby improving a display quality.
摘要:
A method for producing a liquid crystal display panel of the present invention includes the steps of: forming a plurality of injection seals on at least one of a pair of substrates, the injection seals defining a liquid crystal injection area; forming a dummy seal of dispersed sealant particles outside the liquid crystal injection area; attaching the substrates to each other thereby sandwiching the injection seal and the dummy seal therebetween; and injecting a liquid crystal material into the liquid crystal injection area formed between the pair of substrates.
摘要:
A cell gap uniformity in the vicinity of a seal and inside a display region of a liquid crystal display device is enhanced. Further, even when a multi-daylight press is used in a substrate bonding process, a variation in cell gap depending on the stratal positions of substrates is suppressed. In the process of bonding together two substrates on which display use electrodes are formed, the two substrates are bonded together with interposition of a seal member and a spacer. Thereafter, first, the bonded substrates are pressurized according to a specified pressurization profile in a normal temperature state of, for example, 26.degree. C., thereby extending the seal member. Subsequently, these substrates are pressurized according to a pressurization profile whose maximum pressure is set smaller than the maximum pressure in the normal temperature state with heat applied to the substrates, thereby hardening the seal member.