Display apparatus

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.

2. The display device as claimed in claim 1 ,

wherein the current of the display element in a case where the display element displays white display data is larger the current of the display element in a case where the display element displays intermediate display data.

3. The display device as claimed in claim 1 ,

wherein the light emission control circuit controls the light emission period in a unit where the scan line drive circuit selects the display element.

4. The display device as claimed in claim 1 ,

wherein the light emission control circuit inserts black display data into the inputted display data and controls a timing or a time when the black display data is inserted into the inputted display data to control the light emission period, instead of turning ON or OFF the current of the display element.

5. The display device as claimed in claim 1 ,

wherein the light emission control circuit inserts low intensity display data into the inputted display data and controls a timing or a time when the low intensity display data is inserted into the inputted display data to control the light emission period, instead of turning ON and OFF the current of the display element.

6. The display device as claimed in claim 1 ,

wherein the display element includes a light emission element, a capacitance element that stores electrical charge corresponding to the signal voltage, a drive element that flows a current corresponding to the electrical charge in the capacitance element and a switch that turns ON and OFF the current of the display element,

wherein the current corresponding to the electrical charge in the capacitance element is the current of the display element.

7. The display device according to claim 1 , wherein the light emission control circuit is configured to provide initial values of the light emission period for each of the display elements based on the distance of each display element from the drive voltage generation circuit and to provide timing adjustment amounts to the initial values of the light emission period of each of the display elements based upon detection results of the current of the display element determined by the detection circuit when the display element is selected to be applied with the signal voltage by the scan line drive circuit.

8. The display device according to claim 1 , wherein the light emission control circuit is located between the scan line drive circuit and the display elements.