Display apparatus

摘要

The present invention comprises: a display unit having a plurality of display elements arranged in a matrix; a drive voltage generating circuit for generating a drive voltage for driving the plurality of display elements; a dataline drive circuit for generating a signal voltage according to display data, the signal voltage being for controlling the amount of current in a supply line of the drive voltage; a scanline drive circuit for selecting one or more of the plurality of display elements which is to be driven; and a pixel light emission control circuit for controlling a light emission time period of each display element according to a distance measured along a current path from the drive voltage generating circuit to the display element.

主权项

1. A display device comprising:
a plurality of display elements arranged in a matrix form; a drive voltage generation circuit for generating a drive voltage that is applied to the display elements; a plurality of drive voltage supply lines displaced side by side in the matrix form to supply a voltage generated by the drive voltage generation circuit to the display elements, wherein a fixed drive voltage is supplied to each of the drive voltage supply lines by the drive voltage generation circuit, which fixed drive voltage decreases along the drive voltage supply lines due to wiring resistance as a function of distance from the drive voltage generation circuit; a data line drive circuit for generating a signal voltage for controlling a current of the display elements corresponding to inputted display data; a scan line drive circuit for selecting one of the display elements to be applied with the signal voltage; a detection circuit for detecting the current of the selected display element corresponding to the inputted display data; and a light emission control circuit for turning ON or OFF the current of the selected display element to control the light emission period of the selected display element based on a distance from the drive voltage generation circuit to the selected display element, said distance being determined by the amount of drive voltage at the selected display element, which drive voltage corresponds to the fixed drive voltage supplied by the drive voltage generation circuit decreased by an amount corresponding to wiring resistance between the selected display element and the drive voltage generation circuit, and a detection result of the current of the display element, to control a light emission period in a frame period, such that the light emission period is increased among said display elements in accordance with increasing the distance from the drive voltage generation circuit to each of the display elements, and such that, between any two display elements along the same drive voltage supply line applied with the fixed drive voltage, the light emission period will be longer for the display element which is located at a greater distance from the drive voltage generation circuit than for the other display element, wherein an increment rate, a voltage drop and a slope of the light emission period corresponding to the distance from the drive voltage generation circuit to one of the display elements in a case where the current of the display elements which are on the same drive voltage supply line has a first current level is larger than an increment rate, a voltage drop and a slope of the light emission period corresponding to the distance from the drive voltage generation circuit to another one of the display elements in a case where the current of the display elements which are on the same drive voltage supply line has a second current level which is smaller than the first current level.