Abstract: In a liquid crystal display device having a first planar electrode and a second electrode formed on the first electrode with an insulating film in between, the response time of a liquid crystal is made shorter than that in a related art. A liquid crystal display device includes: a first substrate having a first electrode, an insulating film provided in an upper layer than the first electrode, and a second electrode provided in an upper layer than the insulating film; a second substrate; and a liquid crystal sandwiched between the first substrate and the second substrate. The liquid crystal display device drives the liquid crystal by generating an electric field by the first electrode and the second electrode. The second electrode has plural slits closed at both ends, the first electrode is a planar electrode superimposed on the plural slits, and, given that the length of the respective slits is Ls, the length Ls of the respective slits satisfies 12 ?m?Ls?30 ?m, more preferably, 12?m?Ls?20 ?m.

Abstract: Measures are taken against the problem that a conductive matter is attached to an organic film in the vicinity of terminal sections of a display device, which causes electrical connection between the terminals when the terminals are connected to a flexible wiring board. An organic passivation film is formed to the vicinity of the end of the substrate, and a conductive matter is attached to the edge of the organic passivation film. The conductive attachment is divided by extending a bridge section of the organic passivation film to the end of the substrate. Thus, even if a flexible wiring board is connected thereto, the electrical connection between the terminals can be prevented.

Abstract: A liquid crystal display device comprises a pair of substrates which are arranged to face each other in an opposed manner while sandwiching liquid crystal therebetween, pixel regions which are formed on a liquid-crystal-side surface of one substrate out of the pair of substrates, and thin film transistors which are formed on respective pixel regions, wherein each thin film transistor includes a gate electrode connected to a gate signal line, a semiconductor layer laminated to the gate electrode by way of an insulation film, a drain electrode formed on the semiconductor layer and connected to a drain signal line, and a source electrode connected to a pixel electrode, and the semiconductor layer is formed in a periodically irregular shape in a zone having a width substantially larger than a width of the source electrode on a side thereof from which at least the source electrode is pulled out.

Abstract: A liquid crystal display device comprises a pair of substrates which are arranged to face each other in an opposed manner while sandwiching liquid crystal therebetween, pixel regions which are formed on a liquid-crystal-side surface of one substrate out of the pair of substrates, and thin film transistors which are formed on respective pixel regions, wherein each thin film transistor includes a gate electrode connected to a gate signal line, a semiconductor layer laminated to the gate electrode by way of an insulation film, a drain electrode formed on the semiconductor layer and connected to a drain signal line, and a source electrode connected to a pixel electrode, and the semiconductor layer is formed in a periodically irregular shape in a zone having a width substantially larger than a width of the source electrode on a side thereof from which at least the source electrode is pulled out.

Abstract: [Object] To implement a support layer which is smaller than in the prior art with a stable contact area with the spacers in columnar form even in the case where the spacers in columnar form are miniaturized.

Abstract: In a liquid crystal display device having a first planar electrode and a second electrode formed on the first electrode with an insulating film in between, the response time of a liquid crystal is made shorter than that in a related art. A liquid crystal display device includes: a first substrate having a first electrode, an insulating film provided in an upper layer than the first electrode, and a second electrode provided in an upper layer than the insulating film; a second substrate; and a liquid crystal sandwiched between the first substrate and the second substrate. The liquid crystal display device drives the liquid crystal by generating an electric field by the first electrode and the second electrode. The second electrode has plural slits closed at both ends, the first electrode is a planar electrode superimposed on the plural slits, and, given that the length of the respective slits is Ls, the length Ls of the respective slits satisfies 12 ?m?Ls?30 ?m, more preferably, 12?m?Ls?20 ?m.

Abstract: A liquid crystal display device comprises a pair of substrates which are arranged to face each other in an opposed manner while sandwiching liquid crystal therebetween, pixel regions which are formed on a liquid-crystal-side surface of one substrate out of the pair of substrates, and thin film transistors which are formed on respective pixel regions, wherein each thin film transistor includes a gate electrode connected to a gate signal line, a semiconductor layer laminated to the gate electrode by way of an insulation film, a drain electrode formed on the semiconductor layer and connected to a drain signal line, and a source electrode connected to a pixel electrode, and the semiconductor layer is formed in a periodically irregular shape in a zone having a width substantially larger than a width of the source electrode on a side thereof from which at least the source electrode is pulled out.

Abstract: A liquid crystal display device includes a pixel electrode to which a video signal is supplied and a counter electrode to which a reference signal is supplied in each pixel. In the display device a positive-side gray scale voltage and a negative-side gray scale voltage are formed. The positive-side gray scale voltage and the negative-side gray scale voltage are formed with respect to the reference signal such that an average value of the positive-side gray scale voltage and the negative-side gray scale voltage is increased along with an increase of the signal amplitude of the video signal in the vicinity of the minimum thereof, the average value is decreased along with the further increase of the signal amplitude of the video signal, and the average value is increased along with an increase of the amplitude of the video signal in the vicinity of the maximum thereof.

Abstract: Measures are taken against the problem that a conductive matter is attached to an organic film in the vicinity of terminal sections of a display device, which causes electrical connection between the terminals when the terminals are connected to a flexible wiring board. An organic passivation film is formed to the vicinity of the end of the substrate, and a conductive matter is attached to the edge of the organic passivation film. The conductive attachment is divided by extending a bridge section of the organic passivation film to the end of the substrate. Thus, even if a flexible wiring board is connected thereto, the electrical connection between the terminals can be prevented.

Abstract: A display device includes a substrate, a display region having pixels on the substrate, a drive circuit element mounted on a peripheral portion of the substrate, a plurality of terminal portions formed on the peripheral portion and arranged on a mounting portion of the drive circuit element, and a plurality of wiring lines prolonged from the terminal portions to the outside of the mounting portion of the substrate. The terminal parts are arranged to two lines of the plurality of wiring lines along one end of the mounting portion, a plurality of bumps connected to each of the terminal portions by an anisotropic conductive film are formed on the plane facing the terminal portion of the drive circuit element, a part of the plurality bumps include a first bump and a second bump which is adjoined close to the first bump.

Abstract: To prevent the peeling-off of a drive circuit chip from an insulation substrate of a display device attributed to a residual stress between terminals formed on the insulation substrate and bumps formed on a mounting surface of a drive circuit chip, as well as to stabilize the connection resistance therebetween, the present invention provides an auxiliary bump for one of the bumps on the mounting surface of the drive circuit chip at an end edge side thereof with respect to the one of the bumps and arranges the auxiliary bump electrically in contact with one of the terminals formed on the insulation substrate of the display device with which the one of the bumps also is in electrical contact.

Abstract: In a liquid crystal display device, each pixel region formed over a liquid crystal side of one substrate out of respective substrates which are arranged to face each other with liquid crystal therebetween includes pixel electrodes to which a video signal is supplied from a drain signal line through a switching element driven in response to a scanning signal from a gate signal line and capacitive elements which are formed between the pixel electrodes and a capacitive signal line by way of a dielectric film. In such a constitution, the pixel region is divided into a plurality of regions, and video signals are supplied to respective pixel electrodes and capacitive elements in respective regions through paths which are branched from the switching element.

Abstract: In a liquid crystal display device, each pixel region formed over a liquid crystal side of one substrate out of respective substrates which are arranged to face each other with liquid crystal therebetween includes pixel electrodes to which a video signal is supplied from a drain signal line through a switching element driven in response to a scanning signal from a gate signal line and capacitive elements which are formed between the pixel electrodes and a capacitive signal line by way of a dielectric film. In such a constitution, the pixel region is divided into a plurality of regions, and video signals are supplied to respective pixel electrodes and capacitive elements in respective regions through paths which are branched from the switching element.

Abstract: A method of manufacturing a liquid crystal display device is intended to decrease the number of manufacturing steps. The liquid crystal display device is arranged so that in each pixel area provided on a liquid-crystal-side surface of one of a pair of substrates disposed to oppose each other with a liquid crystal interposed therebetween, a signal from a drain line is applied to a pixel electrode via a drain electrode and a source electrode which are formed in a layer overlying a semiconductor layer of a thin film transistor, by the supply of a scanning signal from a gate electrode which is positioned as an underlying layer with respect to the semiconductor layer.

Abstract: The present invention provides a part-transmissive liquid crystal display device which can perform the color compensation simultaneously with countermeasures to cope with flickers. In a liquid crystal display device which includes a transmissive region and a reflective region within one pixel, an electrode in the transmissive region is constituted of a transparent electrode, an electrode in the reflective region is constituted of a metal electrode, and a transparent conductive film having a film thickness of 80 nm or more and 120 nm or less is arranged on the metal electrode.

Abstract: The present invention realizes an image display of high quality by eliminating a defective display which is attributed to a stepped portion of a light shielding film which is generated in a boundary region by exposure of two or more times using an exposure mask having a size smaller than a size of a display region. Assuming a width of a scanning line GL as WG, a width of a common line CL as WC, an interval between the scanning line GL and the common line CL as WP, and a width of a light shielding film BM1 as WBM, the relationship WBM<WG+WC+WP is established. Further, both end peripheries of the light shielding film BM1 are positioned between an end periphery of the scanning line GL at a side opposite to the common line CL and an end periphery of the common line CL at a side opposite to the scanning line GL.

Abstract: A method of manufacturing a liquid crystal display device is intended to decrease the number of manufacturing steps. The liquid crystal display device is arranged so that in each pixel area provided on a liquid-crystal-side surface of one of a pair of substrates disposed to oppose each other with a liquid crystal interposed therebetween, a signal from a drain line is applied to a pixel electrode via a drain electrode and a source electrode which are formed in a layer overlying a semiconductor layer of a thin film transistor, by the supply of a scanning signal from a gate electrode which is positioned as an underlying layer with respect to the semiconductor layer.

Abstract: A method of manufacturing a liquid crystal display device is intended to decrease the number of manufacturing steps. The liquid crystal display device is arranged so that in each pixel area provided on a liquid-crystal-side surface of one of a pair of substrates disposed to oppose each other with a liquid crystal interposed therebetween, a signal from a drain line is applied to a pixel electrode via a drain electrode and a source electrode which are formed in a layer overlying a semiconductor layer of a thin film transistor, by the supply of a scanning signal from a gate electrode which is positioned as an underlying layer with respect to the semiconductor layer.

Abstract: To prevent the peeling-off of a drive circuit chip from an insulation substrate of a display device attributed to a residual stress between terminals formed on the insulation substrate and bumps formed on a mounting surface of a drive circuit chip, as well as to stabilize the connection resistance therebetween, the present invention provides an auxiliary bump for one of the bumps on the mounting surface of the drive circuit chip at an end edge side thereof with respect to the one of the bumps and arranges the auxiliary bump electrically in contact with one of the terminals formed on the insulation substrate of the display device with which the one of the bumps also is in electrical contact.

Abstract: The present invention realizes an image display of high quality by eliminating a defective display which is attributed to a stepped portion of a light shielding film which is generated in a boundary region by exposure of two or more times using an exposure mask having a size smaller than a size of a display region. Assuming a width of a scanning line GL as WG, a width of a common line CL as WC, an interval between the scanning line GL and the common line CL as WP, and a width of a light shielding film BM1 as WBM, the relationship WBM<WG+WC+WP is established. Further, both end peripheries of the light shielding film BM1 are positioned between an end periphery of the scanning line GL at a side opposite to the common line CL and an end periphery of the common line CL at a side opposite to the scanning line GL.