A liquid crystal display device, comprising: a first substrate and a second substrate that are provided so as to face each other with a liquid crystal layer in between, wherein said first substrate has video signal lines that run in a Y direction and are aligned in an X direction perpendicular to the Y direction and scan signal lines that run in the X direction and are aligned in the Y direction so that pixels are formed in a matrix with each pixel in a region between a pair of video signal lines and a pair of scan signal lines, the liquid crystal display device further comprises: plural elongated parallel first structures that are formed along the Y direction, respectively two adjacent of them having a pixel display region of a pixel between them, and each protruding from said first substrate on the liquid crystal side towards said liquid crystal layer side such that they have sidewall surfaces; for every pixel a pair of first linear electrodes that at least partially overlap the sidewall surfaces of said adjacent first structures; and for every pixel a second electrode formed in said pixel display region sandwiched between said pair of first electrodes and formed along the Y direction, wherein each of said first electrodes is formed of a side wall electrode that is formed on said sidewall surface of one of said first structures, protruding so as to be in a wall form in a direction normal to said first substrate and running in the Y direction; and of a plane electrode that runs in the plane of the first substrate from said side wall electrode on the first substrate such that the edge portion thereof, extending in the Y direction, overlaps a portion of the second electrode, wherein said first electrode and said second electrode cover said pixel display region. a first substrate and a second substrate that are provided so as to face each other with a liquid crystal layer in between, wherein said first substrate has video signal lines that run in a Y direction and are aligned in an X direction perpendicular to the Y direction and scan signal lines that run in the X direction and are aligned in the Y direction so that pixels are formed in a matrix with each pixel in a region between a pair of video signal lines and a pair of scan signal lines, the liquid crystal display device further comprises: plural elongated parallel first structures that are formed along the Y direction, respectively two adjacent of them having a pixel display region of a pixel between them, and each protruding from said first substrate on the liquid crystal side towards said liquid crystal layer side such that they have sidewall surfaces; for every pixel a pair of first linear electrodes that at least partially overlap the sidewall surfaces of said adjacent first structures; and for every pixel a second electrode formed in said pixel display region sandwiched between said pair of first electrodes and formed along the Y direction, plural elongated parallel first structures that are formed along the Y direction, respectively two adjacent of them having a pixel display region of a pixel between them, and each protruding from said first substrate on the liquid crystal side towards said liquid crystal layer side such that they have sidewall surfaces; for every pixel a pair of first linear electrodes that at least partially overlap the sidewall surfaces of said adjacent first structures; and for every pixel a second electrode formed in said pixel display region sandwiched between said pair of first electrodes and formed along the Y direction,