Sony Corporation

Sony Group Corporation

Eizo Okamoto

Motoyasu Yano

Akiyoshi Aoyagi

Hideaki Nakagawa

Yasuhiro Tagawa

Toshihisa Kojima

Hideki Date

Koji Totoki

The present disclosure relates to a drive control device, a drive control method, an information processing system, and an information processing method for an information processing system capable of suppressing the occurrence of banding that occurs in a direct view light emitting diode (LED) display during re-imaging. In order to make luminance of the LEDs lower, lower-order bits used for control using thinned light emission are fixed at 0 to disable the control using thinned light emission, and light emission is controlled for each plurality of LEDs set as a unit using pseudo gradation for gradation control by controlling the number of LEDs that emit light and the positions of the LEDs that emit light. The present disclosure is applicable to a passive-matrix driven LED display device.

Drive control device, drive control method, information processing system, and information processing method for information processing system

A self-light emitting device panel includes: a pixel array in which pixel trios each including a set of three light emitting devices which emit light of three primary colors respectively are arranged in matrix in a row direction and a column direction; a plurality of column lines extending in the column direction of the pixel array, arranged in a cyclic manner in different proportions according to corresponding colors in the row direction, which are connected to one ends of plural light emitting devices emitting light of corresponding colors in the column of the pixel trios arranged in the same column; and a plurality of row-scanning lines extending in the row direction of the pixel array, arranged so as to be separated between at least two colors, which are connected to the other ends of the light emitting devices emitting light of corresponding colors.

Self-light emitting device panel, image display device and passive driving method of self-light emitting devices

A mounting board includes two or more metal layers including the outermost metal layer, and a plurality of metal portions, both of which are formed on a substrate. The plurality of metal portions are formed between a first metal layer of the two or more metal layers and a second metal layer of the two or more metal layers, the first metal layer being the outermost metal layer and the second metal layer being different from the outermost metal layer. The second metal layer includes a plurality of first wiring layers extending in a first direction in a plane. The first metal layer is arranged in zigzags in a second direction intersecting with the first direction and includes a plurality of contact pads connected correspondingly to the plurality of first wiring layers through the metal portions.

Mounting board and display device

A display device having frame display duration of X, including: emission elements corresponding to each pixel to be displayed, disposed on L lines, with the scanning direction as lines; a scanning driving unit scanning and driving the emission elements; M data signal driving units driving the emission elements to display an image; and a control unit supplying data signals corresponding to an image to the M data signal driving units, and controlling the scanning driving unit; wherein N is an integer satisfying 0&#x2266;N&#x2266;L/M&#x2212;1, and a an integer satisfying 0&#x3c;a&#x2266;M; the control unit supplies the data signal of the M&#xd7;N+a'th line to the a'th data signal driving unit; and the scanning driving unit scans and drives the emission elements such that the M lines of the emission elements are driven simultaneously, the difference of driving start point-in-time of each line becomes X/L, and the emission duration of each line becomes M&#xd7;X/L.

Display device having a plurality of data signal driving means and method for same

A video display device is capable of performing a high-speed switching process and preventing video flicker from occurring. The video display device comprises a plurality of display units including a plurality of unit cells. The unit cell comprises a plurality of dots arranged vertically and horizontally each other and divided into a plurality of dot groups. Each dot is comprised of a plurality of display elements. Further, each unit cell is provided with a plurality of memories, a driving means and a switching means. The memories store the video data to be supplied to display elements. The driving means reads the video data corresponding to said dot groups stored in one of the memory and drives the display elements of said dot groups based on the read video data. The switching means switches alternately and successively the dot groups. The memories store the video data successively in a one-frame unit or a one-field unit. Since video signal written to the memory in a one-frame unit or one-field unit is read therefrom in the one-frame unit or the one-field unit, the dot groups may be switched at highs speed. Thereby, the video flicker maybe prevented from occurring.

Video display device

A video display device is described, which is capable of easily correcting variations in luminous brightness of each display element. When a video display part is comprised of a plurality of display units including a plurality of display elements, respective correction data for correcting the variations in luminous brightness of the individual display elements are supplied to memory means. When the display elements are driven, the correction data is supplied to their corresponding drivers. In doing so, the display elements can be driven in a corrected state of the variations in luminous brightness. Even when a unit cell comprising display elements is replaced by another and brightness level is re-adjusted, new correction data relative to it is updated. Said updated correction data may simply be stored in the same memory means. Thus, the variations in luminous brightness can be easily corrected even when the unit cell is replaced by another and re-adjusted.

Light emission data is supplied to an RDATA latch,R, a GDATA latch,G, and a BDATA latch,B and latched as R, G, and B data for every pixel. In an arithmetic operation processing unit,, an arithmetic operation is performed using the latched R, G, and B data and a chromaticity correction coefficient C,written in a chromaticity correction coefficient register,. An arithmetic operation result of the arithmetic operation processing unit,is supplied as correction light emission data into a data memory,and stored. In a luminance correction data memory,, luminance correction data is supplied to a constant current driver,in accordance with a supplied control signal. The constant current driver,drives an LED display,in accordance with the correction light emission data and the luminance correction data.

Growing community of inventors

Kanagawa, Japan

Eizo Okamoto