Abstract: A passive-matrix display device has rows (2) of pixels (Pij). A row driver (8) selects sub-groups of the rows (2) to obtain multiple row addressing. Each sub-group has a particular number (p) of the rows (2). In each frame period (Tf) the sub-groups are selected a number of times equal to the particular number (p) at different select instants (ti). The multiple row addressing is based on a scheme defined by a function matrix (FM) which has orthogonal functions (Fi(t)). The columns of the function matrix (FM) represent the orthogonal functions (Fi(t)) at the select instants (ti). The function matrix (FM) is changed such that each one of the columns has at least two non-zero elements (?1,1) and at least one zero element (0).

Abstract: A generic apparatus (14) re-orders video data for various types of displays, such as plasma discharge panels (PDPs), digital micro-mirror devices (DMDs), liquid crystal on silicon (LCOS) devices, and transpose scan cathode ray tube (CRT) displays. In one embodiment, the apparatus (14) includes a first programmable transpose processor (18), a memory (20, 120), and a second programmable transpose processor (22, 122) fabricated as a single IC unit.

Abstract: A table-based driving circuit for displays that switches between a normal operational mode and a read table block mode. The driving circuit comprises an address sequencer and a memory. The memory comprises the full table of individual sequences, such as interlacing or color-sequential sequence. In the read table mode, the next upcoming addresses are read, i.e. are downloaded, from the memory into an address table register in the address sequencer. In the normal operational mode, the address sequencer generates the addresses for the video data to be stored in the memory or to be displayed.

Abstract: This invention relates to a method for improving the perceived resolution of a colour matrix display with at least one pixel, comprising the steps of subdividing an incident colour channel signal (R) to said pixel into a first and second signal component (R1, R2), applying a gain factor (CR) to one of said signal components (R1, R2), and-subsequently recombining said first and second signal components (R1, R2) into an exiting, modified colour channel signal (R?).

Abstract: The invention relates to a video circuit (1) for processing video signals which show images on a display panel with linear light transition, comprising a gamma correction circuit (3), a quantizer (11) and a sub-field generator circuit (8). To save computing time, a random-access memory (7) replaces the quantizer (64).

Abstract: The invention concerns a device and method for converting and supplying a display driving unit with luminance values as well as a portable electronic device and a display unit including the converting device. The device includes an input (33, 35, 37), which receives a first value representing a luminance level with a first word length. It also includes a conversion unit (34, 36 38), that converts the first value into second and third values. These values together represent the luminance level represented by the first value and have a second word length. The second word length is shorter than the first word length. The device also includes a subfield control unit (32), which supplies the second and third values to the display driving unit during a frame period of the display. The time taken up by each converted value is a subfield of the frame. The subfield of the third value is longer than the subfield of the second value.