Abstract: A liquid crystal display device 100 according to the present invention is provided with a liquid crystal panel 20 in which a liquid crystal layer 23 is disposed between an active matrix substrate 21 and an opposite substrate 22 and a backlight 10 that irradiates the liquid crystal panel 20 with light. The liquid crystal panel 20 has a plurality of optical sensor elements 30 that detect the intensity of received infrared light, and the backlight 10 has an infrared LED (light source) 12 that emits infrared light. On a device surface 100a, an infrared light transmissive sheet (infrared light partially transmissive portion) 50 that partially transmits infrared light is provided. The optical sensor elements 30 detect an input position from outside by detecting infrared light reflected from an inputting object such as a finger or the like placed on the device surface 100a.

Abstract: Provided is a lighting device (3) that includes a light guide plate (10) having a light entry surface (10a) through which the light originating from a light-emitting diode unit (9) enters, and a light-emitting surface (10c) from which the light that has entered through the light entry surface (10a) exits. The light-emitting diode unit (9) has light-emitting elements (26a and 27a) arranged linearly on a base member (28) with a prescribed interval therebetween, and sealing resin elements (26b and 27b) that seal respective light-emitting elements (26a and 27a). The light entry surface (10a) of the light guide plate (10) is shaped so as to engage with the sealing resin elements (26b and 27b).

Abstract: Disclosed is a liquid crystal display panel wherein the utilization efficiency of light can be improved, while suppressing deterioration of the contrast. Specifically, a color filter (17) of a liquid crystal display panel (10) comprises: a black matrix (21) which is provided with an opening (2a); a red phosphor layer (22) and a red filter layer (23) which are arranged within the opening (21a) in a red display region (R); a green phosphor layer (24) and a green filter layer (25) which are arranged within the opening (21a) in a green display region (G); and a transparent resin layer (26) and a blue filter layer (27) which are arranged within the opening (21a) in a blue display region (B) A light exit surface of the transparent resin layer (26) is provided with a plurality of projected portions (26c), and the transparent resin layer (26) has a refractive index different from that of the blue filter layer (27), which is in contact with the light exit surface.

Abstract: A threshold table (3) has stored therein thresholds for classifying gradation values, and the gradation values are classified into a plurality of gradation sections in accordance with the thresholds. A look-up table (2) has stored therein differential gradation values corresponding to combinations of gradation section values for data concerning the current frame data and gradation section values for data concerning an immediately preceding frame. A frame memory (21) has stored therein gradation section values for pixels. A control circuit (22) refers to the look-up table (2) and the threshold table (3) to calculate a differential gradation value based on a gradation value indicated by image data (DAT) for the current frame and a gradation section value of previous frame data stored in the frame memory (21). A display data calculation circuit (23) calculates an applied gradation value for the current frame data based on the differential gradation value.

Abstract: A liquid crystal display panel (39) includes a diffraction grating (DG) that is provided on the side of the inner surface (32N) of an opposed substrate (32) for receiving light and is used for enhancing the light output efficiency from the inner surface (32N) to the outside.

Abstract: A planar illumination device is provided that enhances the efficiency of use of light and its brightness while suppressing uneven brightness, that reduces an increase in the manufacturing cost and that can reduce the thickness of the planar illumination device. In this backlight device (planar illumination device) (20), in the light emitting surface (23b) of a light guide body (23), a plurality of prisms (23e) that gradually reduce an angle of incidence of light with respect to the back surface (23c) of the light guide body are provided, and, in the back surface (24a) of a low refractive index layer (24), a plurality of prisms (24b) that have the function of forwardly and totally reflecting light from LEDs (21) in an interface between the back surface of the low refractive index layer and an air layer are formed.

Abstract: A liquid crystal display device (display device) (100) of the present invention includes a display panel (20) provided with a plurality of light sensor elements, and has an area sensor function in which the plurality of light sensor elements detect an image on a surface of the liquid crystal display device, so as to determine a location of an input from outside. The liquid crystal display device includes (i) a front side polarizing plate (40) provided on or above a surface of the display panel (20) which surface is on an image display surface side and (ii) a ?/2 phase plate (50b) and a ?/4 phase plate (50a) which are stacked in this order on the front side polarizing plate (40) so that an optical axis (a slow axis) of the ?/2 phase plate (50b) and an optical axis (a slow axis) of the ?/4 phase plate (50a) intersect with each other. The phase plate formed by stacking the ?/2 phase plate (50b) and the ?/4 phase plate (50a) is referred to as a broadband ?/4 phase plate (50).

Abstract: The light from a light source (4) using an LED enters a light entrance surface (2c) of a light guide plate (2) which is integrated with an microprism array sheet (3). A diffusion film (7) for diffusing light is bonded to a top surface (2b) of the light guide plate (2) in a region near the light source (4).

Abstract: Provided is a light guide plate which can suppress glare with reduced thickness. Specifically, a light guide plate (1) is provided with a light incoming surface (1a), a light outgoing surface (1b) and a light reflecting surface (1c). A diffraction grating pattern (11) is formed on the light outgoing surface (1b), and a prism pattern (12) is formed on the light reflecting surface (1c). On a region of the light reflecting surface (1c) on the side of the light incoming surface (1a), the prism pattern (12) does not exist, and the region where the prism pattern (12) is formed is smaller than the region where the diffraction grating pattern (11) is formed.

Abstract: Provided is an LED light source having improved luminance characteristics. The LED light source device (1) is provided with a light emitting body (12) mounted on a mounting surface (11a) of a base member (11), and a transparent resin member (13), which is formed on the mounting surface (11a) and provided with a light emitting surface (13a) and a side end surface (13b). The side end surface (13b) is tilted so that the length of the light emitting surface (13a) in the lateral direction is longer than the length of the mounting surface (11a) in the lateral direction, and an interface between the side end surface (13b) and atmosphere is permitted to be a reflecting surface.

Abstract: The light from a light source (4) using an LED enters a light entrance surface (2c) of a light guide plate (2) which is integrated with an microprism array sheet (3). A diffusion film (7) for diffusing light is bonded to a top surface (2b) of the light guide plate (2) in a region near the light source (4).

Abstract: A light guide plate has a main-side microprism array sheet (main-side MPA sheet) 3 adhered to the top face 2a thereof, and a sub-side microprism array sheet (sub-side MPA sheet) 4 adhered to the bottom face 2b thereof. A prism formation region of the sub-side MPA sheet 4 is smaller than that of the main-side MPA sheet 3. Prisms in the prism formation region of the main-side MPA sheet 3 are, in an arrangement where the density of prisms arranged increases with distance from a light source 5, so arranged that the density of prisms arranged increases in a region that faces the prism formation region of the sub-side MPA sheet 4.

Abstract: The present invention relates to liquid crystal display devices. An objective of the present invention is to reduce the size of the liquid crystal display devices, while suppressing moving images from being displayed in low quality. A threshold table (3) has stored therein thresholds for classifying gradation values, and the gradation values are classified into a plurality of gradation sections in accordance with the thresholds. A look-up table (2) has stored therein differential gradation values corresponding to combinations of gradation section values for data concerning the current frame data and gradation section values for data concerning an immediately preceding frame. A frame memory (21) has stored therein gradation section values for pixels.

Abstract: In the method of the invention, hydroxypivalaldehyde (3-hydroxy-2,2-dimethylpropanal) and/or its dimer is stored under solid conditions containing an amount of water. By storing such solid conditions, hydroxypivalaldehyde and/or its dimer is stored for a long period of time without reducing its purity.

Abstract: In the method of the invention, hydroxypivalaldehyde (3-hydroxy-2,2-dimethylpropanal) and/or its dimer is stored under solid conditions containing an amount of water. By storing such solid conditions, hydroxypivalaldehyde and/or its dimer is stored for a long period of time without reducing its purity.

Abstract: The invention provides for a lithium secondary battery using a non-aqueous solvent wherein the anode material is prepared by the pyrolysis of organic compound starting materials obtained by reacting at least one conjugated polycyclic compound with a nitro compound or with a nitrating agent. The anode material contains at least the elements carbon and nitrogen, the nitrogen content ranging from 0.5% to 6% by weight. Eighty percent or more of this nitrogen is bound to carbon by either C--N or C.dbd.N bonds. The ratio of the intensity of the x-ray photoelectron spectroscopy ("XPS") peak observed for the anode material at 401.2.+-.0.2 eV to the intensity of peak observed for the anode material at 398.8.+-.0.4 eV is 1.0:1 or more.