JP2009251333A - Driving method of organic el device, electronic equipment, server device and transmitting/receiving system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a display image becomes dark with lapse of time in a conventional organic electro luminescence (EL) device. <P>SOLUTION: In a driving method of the organic EL device comprising an organic layer including a light emitting layer and a pair of electrodes for pinching and holding the organic layer, on the basis of a voltage value when the emission layer is made to emit light with a prescribed current value I<SB>0</SB>, a degradation state of the organic layer is known, and difference I<SB>S</SB>between a current value I<SB>1</SB>in which a luminance L<SB>0</SB>before the degradation state is obtained at the organic layer which is in the degradation state, and the prescribed current value I<SB>0</SB>is set as a correction value. When making the emission layer emit light, the emission layer is made to emit light with a new driving current that the correction value is added to the driving current for making the emission layer emit light. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an organic EL device driving method, an electronic apparatus, a server device, and a transmission / reception system.

Conventionally, an organic EL (Electro Luminescence) device is known as one of display devices.
The organic EL device has an organic EL element in which an organic layer including a light emitting layer is interposed between a pair of electrodes (see, for example, Patent Document 1).

JP 2007-248702 A

By the way, in the organic EL device, the luminance may decrease as the light emission time of the light emitting layer elapses.
That is, the conventional organic EL device has a problem that the display image may become darker with time.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 A driving method of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes sandwiching the organic layer, the voltage when the light emitting layer emits light at a predetermined current value Based on the value, the deterioration state of the organic layer is grasped, and the difference between the predetermined current value and the current value at which the organic layer in the deterioration state obtains luminance before the deterioration state is a correction value. When the light emitting layer emits light, the light emitting layer is caused to emit light with a new driving current obtained by adding the correction value to the driving current for causing the light emitting layer to emit light. Driving method.

The organic EL device according to the driving method of Application Example 1 includes an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer.
In the driving method of Application Example 1, the deterioration state of the organic layer is grasped based on the voltage value when the light emitting layer emits light with a predetermined current value. Next, a difference between a current value at which luminance before the deteriorated state is obtained in the organic layer in the deteriorated state and a predetermined current value is set as a correction value. When the light emitting layer is caused to emit light, the light emitting layer is caused to emit light with a new drive current obtained by adding a correction value to the drive current for causing the light emitting layer to emit light.
In this driving method, the driving current can be brought close to a current value at which the luminance in the state before the deteriorated state can be obtained, so that the deteriorated state of the luminance can be easily compensated. For this reason, it is possible to easily maintain a bright display image of the organic EL device.

  Application Example 2 In the driving method of the organic EL device described above, in grasping the deterioration state, the voltage value with respect to the predetermined current value is collated with the deterioration characteristic of the current characteristic with respect to the voltage of the organic layer. The organic EL device driving method characterized in that the deterioration state is grasped.

  In the application example 2, in grasping the deterioration state, the deterioration state is grasped by comparing the voltage value with respect to the predetermined current value with the deterioration characteristic of the current characteristic with respect to the voltage of the organic layer. In this driving method, the voltage value with respect to the predetermined current value is collated with the deterioration characteristic of the current characteristic with respect to the voltage of the organic layer, so that an accurate deterioration state can be easily grasped.

  Application Example 3 In the driving method of the organic EL device described above, in the setting of the correction value, the deterioration state is checked against the deterioration characteristic of the luminance characteristic with respect to the current of the organic layer. The deterioration luminance that is the luminance at the predetermined current value is grasped, the pre-degradation luminance that is the luminance at the predetermined current value is grasped in the luminance characteristic in the state before the deterioration state, and the deterioration In the luminance characteristics of which luminance is grasped, the current value corresponding to the luminance before deterioration is grasped, and the difference between the predetermined current value and the current value is set as the correction value. Driving method of EL device.

In the application example 3, in setting the correction value, the deterioration state is collated with the deterioration characteristic of the luminance characteristic with respect to the current of the organic layer. In the matched luminance characteristics, the degradation luminance that is the luminance at a predetermined current value is grasped. In the luminance characteristics in the state before the deterioration state, the luminance before deterioration that is the luminance at a predetermined current value is grasped. Then, the current value corresponding to the luminance before degradation is grasped in the luminance characteristic for which the degradation luminance is grasped. Then, the difference between this current value and a predetermined current value is set as a correction value. Note that the grasping of the deteriorated luminance and the grasping of the pre-deteriorated luminance may be performed before or after.
In this driving method, the deterioration state is collated with the deterioration characteristic of the luminance characteristic, and the deterioration luminance is grasped from the collated luminance characteristic, so that it is easy to accurately grasp the luminance at a predetermined current value of the organic layer in the deterioration state. be able to. In addition, since the pre-degradation luminance is grasped from the luminance characteristics of the state before the deterioration state, and the current value corresponding to the pre-degradation luminance is grasped from the luminance characteristic where the deterioration luminance is grasped, this current value and a predetermined current value Can be made to correspond to the difference between the luminance before degradation and the degradation luminance. Since the difference between the current value and the predetermined current value is set as a correction value, a correction value can be set according to the difference between the luminance before deterioration and the deterioration luminance. Thereby, the deterioration luminance of the organic layer of the organic EL device can be easily brought close to the luminance before deterioration. For this reason, it is possible to easily maintain a bright display image of the organic EL device.

  Application Example 4 A driving method of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes sandwiching the organic layer, and a current when the light emitting layer emits light at a predetermined voltage value Based on the value, the deterioration state of the organic layer is grasped, and the difference between the voltage value at which the luminance before the deterioration state is obtained in the organic layer in the deterioration state and the predetermined voltage value is corrected. When the light emitting layer emits light, the light emitting layer is caused to emit light with a new driving voltage obtained by adding the correction value to the driving voltage for causing the light emitting layer to emit light. Driving method.

The organic EL device according to the driving method of Application Example 4 includes an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer.
In the driving method of Application Example 4, the deterioration state of the organic layer is grasped based on the current value when the light emitting layer emits light at a predetermined voltage value. Next, a difference between a voltage value at which the luminance before the deteriorated state is obtained in the organic layer in the deteriorated state and a predetermined voltage value is set as a correction value. When the light emitting layer is caused to emit light, the light emitting layer is caused to emit light with a new driving voltage obtained by adding a correction value to the driving voltage for causing the light emitting layer to emit light.
In this driving method, the driving voltage can be brought close to a voltage value at which the luminance in the state before the deteriorated state can be obtained, so that the deterioration state of the luminance can be easily compensated. For this reason, it is possible to easily maintain a bright display image of the organic EL device.

  Application Example 5 In the driving method of the organic EL device described above, in grasping the deterioration state, the current value with respect to the predetermined voltage value is collated with the deterioration characteristic of the current characteristic with respect to the voltage of the organic layer. The organic EL device driving method characterized in that the deterioration state is grasped.

  In the application example 5, in grasping the deterioration state, the deterioration state is grasped by comparing the current value with respect to the predetermined voltage value with the deterioration characteristic of the current characteristic with respect to the voltage of the organic layer. In this driving method, the current value with respect to the predetermined voltage value is collated with the deterioration characteristic of the current characteristic with respect to the voltage of the organic layer, so that an accurate deterioration state can be easily grasped.

  Application Example 6 In the driving method of the organic EL device described above, in the setting of the correction value, the deterioration state is checked against the deterioration characteristic of the luminance characteristic with respect to the voltage of the organic layer. The deterioration luminance which is the luminance at the predetermined voltage value is grasped, the pre-degradation luminance which is the luminance at the predetermined voltage value is grasped in the luminance characteristic in the state before the deterioration state, and the deterioration In the luminance characteristic in which luminance is grasped, the voltage value corresponding to the luminance before deterioration is grasped, and the difference between the predetermined voltage value and the voltage value is set as the correction value. Driving method of EL device.

In the application example 6, in setting the correction value, the deterioration state is collated with the deterioration characteristic of the luminance characteristic with respect to the voltage of the organic layer. In the collated luminance characteristic, the degradation luminance that is the luminance at a predetermined voltage value is grasped. In the luminance characteristics in a state before the deterioration state, the luminance before deterioration that is the luminance at a predetermined voltage value is grasped. Then, the voltage value corresponding to the luminance before deterioration is grasped in the luminance characteristic for which the degradation luminance is grasped. Then, the difference between this voltage value and a predetermined voltage value is set as a correction value. Note that the grasping of the deteriorated luminance and the grasping of the pre-deteriorated luminance may be performed before or after.
In this driving method, the deterioration state is collated with the deterioration characteristic of the luminance characteristic, and the deterioration luminance is grasped from the collated luminance characteristic, so that it is easy to accurately grasp the luminance at a predetermined voltage value of the organic layer in the deterioration state. be able to. Also, since the luminance before deterioration is grasped from the luminance characteristics of the state before the deterioration state, and the voltage value corresponding to the luminance before deterioration is grasped from the luminance characteristic where the deterioration luminance is grasped, this voltage value and a predetermined voltage value Can be made to correspond to the difference between the luminance before degradation and the degradation luminance. Since the difference between the voltage value and the predetermined voltage value is set as a correction value, a correction value corresponding to the difference between the luminance before deterioration and the deterioration luminance can be set. Thereby, the deterioration luminance of the organic layer of the organic EL device can be easily brought close to the luminance before deterioration. For this reason, it is possible to easily maintain a bright display image of the organic EL device.

  Application Example 7 In the driving method of the organic EL device, a plurality of pixels are set in the organic EL device, and the plurality of pixels emit light exhibiting a red color. A red pixel having a light emitting layer; a green pixel having the light emitting layer emitting light exhibiting a green color; and a blue pixel having the light emitting layer emitting light exhibiting a blue color. In the determination of the deterioration state, the deterioration state is determined for each of the red pixel, the green pixel, and the blue pixel, and in the correction value setting, the red pixel, the green pixel A method for driving an organic EL device, wherein the correction value is set for each of a pixel and a blue pixel.

In the organic EL device according to the driving method of Application Example 7, a plurality of pixels are set. The plurality of pixels include a red pixel, a green pixel, and a blue pixel. The red pixel has a light emitting layer that emits light exhibiting a red color. The green pixel has a light emitting layer that emits light exhibiting a green color. The blue pixel has a light emitting layer that emits light exhibiting a blue color.
In the driving method of Application Example 7, in grasping the deterioration state, the deterioration state is grasped for each of the red pixel, the green pixel, and the blue pixel. In setting the correction value, the correction value is set for each of the red pixel, the green pixel, and the blue pixel. As a result, even if the degradation state is different for each of the red pixel, the green pixel, and the blue pixel, it is easy to appropriately compensate for the luminance degradation state for each of the red pixel, the green pixel, and the blue pixel. can do.

  Application Example 8 A control unit that controls driving of an organic EL device that includes an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer, and a drive that indicates a drive current value when the light emitting layer emits light. A data storage unit in which current data is stored; a voltage detection unit that detects a voltage value when the light emitting layer emits light at the driving current value; a deterioration characteristic data of current characteristics with respect to the voltage of the organic layer; A transmission unit that transmits voltage data indicating the voltage value to a server in which deterioration characteristic data of luminance characteristics with respect to the current of the organic layer is stored, and the server includes the voltage value and deterioration characteristic data of the current characteristic, and the Based on the deterioration characteristic data of the luminance characteristics, the deterioration value of the organic layer is grasped, and the current value at which the luminance before the deterioration state is obtained in the organic layer in the deterioration state and the driving A receiving unit that receives a correction current value calculated as a difference from the current value as correction data from the server, and the control unit adds a new driving current obtained by adding the correction current value to the driving current value. The light emitting layer of the organic EL device is caused to emit light by value.

The electronic device of Application Example 8 includes a control unit, a data storage unit, a voltage detection unit, a transmission unit, and a reception unit. The control unit controls driving of the organic EL device. Note that the organic EL device includes an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer.
The data storage unit stores drive current data indicating a drive current value when the light emitting layer emits light. The voltage detection unit detects a voltage value when the light emitting layer is caused to emit light with a drive current value. The transmission unit transmits voltage data indicating the voltage value detected by the voltage detection unit to the server. The server stores deterioration characteristic data of current characteristics with respect to the voltage of the organic layer and deterioration characteristic data of luminance characteristics with respect to the current of the organic layer.
The receiving unit receives the correction current value calculated by the server as correction data from the server. The server grasps the deterioration state of the organic layer based on the voltage value, the deterioration characteristic data of the current characteristic, and the deterioration characteristic data of the luminance characteristic, and the organic layer in the deteriorated state is more than the deteriorated state. The difference between the current value at which the previous luminance is obtained and the drive current value is calculated as the correction current value.
Then, the control unit causes the light emitting layer of the organic EL device to emit light with a new drive current value obtained by adding the correction current value to the drive current value.
In this electronic apparatus, the drive current can be brought close to a current value at which the luminance in the state before the deteriorated state can be obtained, so that the deteriorated state of the luminance can be easily compensated. For this reason, it is possible to easily maintain a bright display image of the organic EL device.

  Application Example 9 A control unit that controls driving of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer, and a drive that indicates a driving current value when the light emitting layer emits light A data storage unit in which current data is stored; a voltage detection unit that detects a voltage value when the light emitting layer emits light at the driving current value; a deterioration characteristic data of current characteristics with respect to the voltage of the organic layer; A memory unit storing luminance characteristic deterioration characteristic data with respect to the current of the organic layer, and the control unit determines the deterioration state of the organic layer based on the voltage value and the deterioration characteristic data of the current characteristic. And based on the deterioration state and deterioration characteristic data of the luminance characteristic, a current value at which the luminance before the deterioration state is obtained in the organic layer in the deterioration state, and the drive current value Correct current difference And calculated, with the new drive current value obtained by adding the correction current to the drive current, an electronic apparatus, characterized in that for light emitting the light emitting layer of the organic EL device.

The electronic device of Application Example 9 includes a control unit, a data storage unit, a voltage detection unit, and a memory unit. The control unit controls driving of the organic EL device. Note that the organic EL device includes an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer.
The data storage unit stores drive current data indicating a drive current value when the light emitting layer emits light. The voltage detection unit detects a voltage value when the light emitting layer is caused to emit light with a drive current value. The memory unit stores deterioration characteristic data of current characteristics with respect to the voltage of the organic layer and deterioration characteristic data of luminance characteristics with respect to the current of the organic layer.
In this electronic apparatus, the control unit grasps the deterioration state of the organic layer based on the voltage value and the deterioration characteristic data of the current characteristic. In addition, the control unit corrects the difference between the drive current value and the current value at which the brightness before the deteriorated state is obtained in the organic layer in the deteriorated state based on the deteriorated state and the deterioration characteristic data of the brightness characteristic. Calculated as the current value.
Then, the control unit causes the light emitting layer of the organic EL device to emit light with a new drive current value obtained by adding the correction current value to the drive current value.
In this electronic apparatus, the drive current can be brought close to a current value at which the luminance in the state before the deteriorated state can be obtained, so that the deteriorated state of the luminance can be easily compensated. For this reason, it is possible to easily maintain a bright display image of the organic EL device.

  Application Example 10 A control unit that controls driving of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer, and driving that indicates a driving voltage value when the light emitting layer emits light. A data storage unit that stores voltage data; a current detection unit that detects a current value when the light emitting layer emits light at the driving voltage value; a deterioration characteristic data of current characteristics with respect to a voltage of the organic layer; and A transmission unit that transmits current data indicating the current value to a server in which deterioration characteristic data of luminance characteristics with respect to the voltage of the organic layer is stored, and the server includes the current value, the deterioration characteristic data of the current characteristic, and the Based on the deterioration characteristic data of the luminance characteristic, the voltage value and the drive value for grasping the deterioration state of the organic layer and obtaining the luminance before the deterioration state in the organic layer in the deterioration state. A receiving unit that receives the correction voltage value calculated as a difference from the voltage value as correction data from the server, and the control unit adds a new driving voltage to the driving voltage value. The light emitting layer of the organic EL device is caused to emit light by value.

The electronic device of Application Example 10 includes a control unit, a data storage unit, a current detection unit, a transmission unit, and a reception unit. The control unit controls driving of the organic EL device. Note that the organic EL device includes an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer.
The data storage unit stores drive voltage data indicating a drive voltage value for causing the light emitting layer to emit light. The current detection unit detects a current value when the light emitting layer emits light with a driving voltage value. The transmission unit transmits current data indicating the current value detected by the current detection unit to the server. Note that the server stores current characteristic deterioration characteristic data with respect to the organic layer voltage and luminance characteristic deterioration characteristic data with respect to the organic layer voltage.
The receiving unit receives the correction voltage value calculated by the server as correction data from the server. The server grasps the deterioration state of the organic layer based on the current value, the deterioration characteristic data of the current characteristic, and the deterioration characteristic data of the luminance characteristic, and the organic layer in the deteriorated state is more than the deterioration state. The difference between the voltage value at which the previous luminance is obtained and the drive voltage value is calculated as the correction voltage value.
Then, the control unit causes the light emitting layer of the organic EL device to emit light with a new drive voltage value obtained by adding the correction voltage value to the drive voltage value.
In this electronic apparatus, the drive voltage can be brought close to a voltage value that provides the luminance in the state before the deteriorated state, so that the deterioration state of the luminance can be easily compensated. For this reason, it is possible to easily maintain a bright display image of the organic EL device.

  Application Example 11 A control unit that controls driving of an organic EL device that includes an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer, and a drive that indicates a driving voltage value when the light emitting layer emits light. A data storage unit that stores voltage data; a current detection unit that detects a current value when the light emitting layer emits light at the driving voltage value; a deterioration characteristic data of current characteristics with respect to a voltage of the organic layer; and A memory unit storing luminance characteristic deterioration characteristic data with respect to the voltage of the organic layer, and the control unit determines the deterioration state of the organic layer based on the current value and the deterioration characteristic data of the current characteristic. And based on the deterioration state and the deterioration characteristic data of the luminance characteristic, a voltage value at which the luminance before the deterioration state is obtained in the organic layer in the deterioration state, and the drive voltage value Correct the difference voltage Electronic devices calculated, with the new drive voltage value obtained by adding the correction voltage value to the driving voltage value, characterized in that for light emitting the light emitting layer of the organic EL device as.

The electronic device of Application Example 11 includes a control unit, a data storage unit, a current detection unit, and a memory unit. The control unit controls driving of the organic EL device. Note that the organic EL device includes an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer.
The data storage unit stores drive voltage data indicating a drive voltage value for causing the light emitting layer to emit light. The current detection unit detects a current value when the light emitting layer emits light with a driving voltage value. The memory unit stores deterioration characteristic data of current characteristics with respect to the voltage of the organic layer and deterioration characteristic data of luminance characteristics with respect to the voltage of the organic layer.
In this electronic device, the control unit grasps the deterioration state of the organic layer based on the current value and the deterioration characteristic data of the current characteristic. In addition, the control unit corrects the difference between the drive voltage value and the voltage value at which the brightness before the deteriorated state is obtained in the organic layer in the deteriorated state based on the deteriorated state and the deterioration characteristic data of the brightness characteristic. Calculated as a voltage value.
And this control part makes the light emitting layer of an organic electroluminescent apparatus light-emit with the new drive voltage value which added the correction voltage value to the drive voltage value.
In this electronic apparatus, the drive voltage can be brought close to a voltage value that provides the luminance in the state before the deteriorated state, so that the deterioration state of the luminance can be easily compensated. For this reason, it is possible to easily maintain a bright display image of the organic EL device.

  Application Example 12 An electronic apparatus according to the above-described electronic apparatus, which includes the organic EL device.

  Application Example 13 From a client device that controls driving of an organic EL device that includes an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer, the client device emits light from the light emitting layer at a predetermined current value. A reception unit that receives the voltage value as voltage data, a data storage unit that stores deterioration characteristic data of current characteristics with respect to the voltage of the organic layer, and deterioration characteristic data of luminance characteristics with respect to the current of the organic layer; Based on the deterioration characteristics data of the voltage value and the current characteristic, the deterioration state of the organic layer is grasped, and based on the deterioration characteristic data of the deterioration state and the luminance characteristic, the organic layer in the deterioration state A control unit that calculates a difference between a current value at which luminance before the deteriorated state is obtained and the predetermined current value as a correction current value, and the correction current value as correction data. Server apparatus characterized by having a transmission section for transmitting to the serial client device.

The server device according to the application example 13 includes a reception unit, a data storage unit, a control unit, and a transmission unit.
The receiving unit receives voltage data from the client device. The client device controls driving of the organic EL device. The organic EL device has an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer. The voltage data indicates a voltage value when the client device causes the light emitting layer to emit light at a predetermined current value.
The data storage unit stores current characteristic deterioration characteristic data with respect to the organic layer voltage and luminance characteristic deterioration characteristic data with respect to the organic layer current.
The control unit grasps the deterioration state of the organic layer based on the voltage value and the deterioration characteristic data of the current characteristic. In addition, the control unit corrects a difference between a predetermined current value and a current value at which luminance before the deteriorated state is obtained in the organic layer in the deteriorated state based on the deterioration characteristic data of the deteriorated state and the luminance characteristic. Calculated as the current value.
The transmission unit transmits the correction current value as correction data to the client device.
In this server device, the drive current in the client device can be brought close to the current value at which the luminance in the state before the deteriorated state can be obtained, so that the deterioration state of the luminance of the organic EL device can be easily compensated. For this reason, it is possible to easily maintain a bright display image of the organic EL device.

  Application Example 14 From a client device that controls driving of an organic EL device that includes an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer, the client device emits light from the light emitting layer at a predetermined voltage value. A receiving unit that receives the current value as current data; a data storage unit that stores deterioration characteristic data of current characteristics with respect to the voltage of the organic layer, and deterioration characteristic data of luminance characteristics with respect to the voltage of the organic layer; Based on the current value and the deterioration characteristic data of the current characteristic, grasp the deterioration state of the organic layer, and based on the deterioration characteristic data of the deterioration state and the luminance characteristic, the organic layer in the deterioration state A control unit that calculates a difference between a voltage value at which luminance before the deteriorated state is obtained and the predetermined voltage value as a correction voltage value, and the correction voltage value as correction data. Server apparatus characterized by having a transmission section for transmitting to the serial client device.

The server device according to the application example 14 includes a reception unit, a data storage unit, a control unit, and a transmission unit.
The receiving unit receives current data from the client device. The client device controls driving of the organic EL device. The organic EL device has an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer. The current data indicates the current value when the client device causes the light emitting layer to emit light at a predetermined voltage value.
The data storage unit stores deterioration characteristic data of current characteristics with respect to the voltage of the organic layer and deterioration characteristic data of luminance characteristics with respect to the voltage of the organic layer.
The control unit grasps the deterioration state of the organic layer based on the current value and the deterioration characteristic data of the current characteristic. In addition, the control unit corrects a difference between a voltage value at which the luminance before the deteriorated state is obtained in the organic layer in the deteriorated state and a predetermined voltage value based on the deterioration characteristic data of the deteriorated state and the luminance characteristic. Calculated as a voltage value.
The transmission unit transmits the correction voltage value as correction data to the client device.
In this server device, the drive voltage in the client device can be brought close to a voltage value that provides the luminance in the state before the deteriorated state, so that the deterioration state of the luminance of the organic EL device can be easily compensated. For this reason, it is possible to easily maintain a bright display image of the organic EL device.

  Application Example 15 A client device that controls driving of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer, deterioration characteristic data of current characteristics with respect to voltage of the organic layer, and A transmission / reception system for transmitting / receiving data between the client device and the server device, wherein the client device and the server device store the degradation characteristic data of luminance characteristics with respect to the current of the organic layer. A data storage unit that stores drive current data indicating a drive current value when the light emitting layer emits light; a voltage detection unit that detects a voltage value when the light emitting layer emits light with the drive current value; A transmission unit that transmits voltage data indicating the voltage value to the server device, and a correction current value based on a degradation state of the light emitting layer from the server device A receiving unit that receives the correction data, and a control unit that causes the light emitting layer to emit light with a new driving current value obtained by adding the correction current value to the driving current value when controlling the driving of the organic EL device. The server device includes: a receiving unit that receives the voltage data; a data storage unit that stores the deterioration characteristic data of the current characteristic and the deterioration characteristic data of the luminance characteristic; the voltage value and the current Based on the deterioration characteristic data of the characteristic, grasp the deterioration state of the organic layer, and based on the deterioration characteristic data of the deterioration state and the luminance characteristic, the organic layer in the deterioration state before the deterioration state A control unit that calculates a difference between a current value from which brightness is obtained and the drive current value as a correction current value; a transmission unit that transmits the correction current value to the client device as correction data; Transmission and reception system, characterized in that it has.

The transmission / reception system of Application Example 15 includes a client device and a server device. The client device controls driving of the organic EL device. The organic EL device has an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer.
The server device stores deterioration characteristic data of current characteristics with respect to the voltage of the organic layer and deterioration characteristic data of luminance characteristics with respect to the current of the organic layer.
This transmission / reception system transmits and receives data between a client device and a server device.
The client device includes a data storage unit, a voltage detection unit, a transmission unit, a reception unit, and a control unit. The data storage unit stores drive current data indicating a drive current value when the light emitting layer emits light. The voltage detection unit detects a voltage value when the light emitting layer is caused to emit light with a drive current value. The transmission unit transmits voltage data indicating the voltage value detected by the voltage detection unit toward the server device. The receiving unit receives correction data from the server device. The correction data indicates a correction current value based on the deterioration state of the light emitting layer. When controlling the driving of the organic EL device, the control unit causes the light emitting layer to emit light with a new driving current value obtained by adding the correction current value to the driving current value.
The server device includes a reception unit, a data storage unit, a control unit, and a transmission unit. The receiving unit receives voltage data from the client device. The data storage unit stores deterioration characteristic data of current characteristics and deterioration characteristic data of luminance characteristics. The control unit grasps the deterioration state of the organic layer based on the voltage value and the deterioration characteristic data of the current characteristic. In addition, the control unit corrects the difference between the drive current value and the current value at which the brightness before the deterioration state is obtained in the organic layer in the deterioration state based on the deterioration characteristic data of the deterioration state and the luminance characteristic. Calculate as a value. The transmission unit transmits the correction current value as correction data to the client device.
In this transmission / reception system, the drive current in the client device can be brought close to the current value at which the luminance in the state before the deterioration state can be obtained, so that the deterioration state of the luminance of the organic EL device can be easily compensated. For this reason, it is possible to easily maintain a bright display image of the organic EL device.

  [Application Example 16] Client device for controlling driving of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes sandwiching the organic layer, deterioration characteristic data of current characteristics with respect to voltage of the organic layer, and A transmission / reception system for transmitting / receiving data between the client device and the server device, wherein the client device and the server device store the degradation characteristic data of luminance characteristics with respect to the voltage of the organic layer. A data storage unit that stores driving voltage data indicating a driving voltage value when the light emitting layer emits light; a current detecting unit that detects a current value when the light emitting layer emits light at the driving voltage value; A transmission unit that transmits current data indicating the current value to the server device, and a correction voltage value based on a degradation state of the light emitting layer from the server device. A receiving unit that receives the correction data, and a control unit that causes the light emitting layer to emit light with a new driving voltage value obtained by adding the correction voltage value to the driving voltage value when controlling the driving of the organic EL device. The server device includes: a receiving unit that receives the current data; a data storage unit that stores the deterioration characteristic data of the current characteristic and the deterioration characteristic data of the luminance characteristic; and the current value and the current Based on the deterioration characteristic data of the characteristic, grasp the deterioration state of the organic layer, and based on the deterioration characteristic data of the deterioration state and the luminance characteristic, the organic layer in the deterioration state before the deterioration state A control unit that calculates a difference between the voltage value from which the luminance is obtained and the drive voltage value as a correction voltage value; a transmission unit that transmits the correction voltage value to the client device as correction data; Transmission and reception system, characterized in that it has.

The transmission / reception system of Application Example 16 includes a client device and a server device. The client device controls driving of the organic EL device. The organic EL device has an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer.
The server device stores deterioration characteristic data of current characteristics with respect to the voltage of the organic layer and deterioration characteristic data of luminance characteristics with respect to the voltage of the organic layer.
This transmission / reception system transmits and receives data between a client device and a server device.
The client device includes a data storage unit, a current detection unit, a transmission unit, a reception unit, and a control unit. The data storage unit stores drive voltage data indicating a drive voltage value for causing the light emitting layer to emit light. The current detection unit detects a current value when the light emitting layer emits light with a driving voltage value. The transmission unit transmits current data indicating the current value detected by the current detection unit to the server device. The receiving unit receives correction data from the server device. The correction data indicates a correction voltage value based on the deterioration state of the light emitting layer. When controlling the driving of the organic EL device, the control unit causes the light emitting layer to emit light with a new driving voltage value obtained by adding the correction voltage value to the driving voltage value.
The server device includes a reception unit, a data storage unit, a control unit, and a transmission unit. The receiving unit receives current data from the client device. The data storage unit stores deterioration characteristic data of current characteristics and deterioration characteristic data of luminance characteristics. The control unit grasps the deterioration state of the organic layer based on the current value and the deterioration characteristic data of the current characteristic. Further, the control unit corrects the difference between the driving voltage value and the voltage value at which the luminance before the deteriorated state is obtained in the organic layer in the deteriorated state based on the deterioration characteristic data of the deteriorated state and the luminance characteristic. Calculate as a value. The transmission unit transmits the correction voltage value as correction data to the client device.
In this transmission / reception system, the drive voltage in the client device can be brought close to a voltage value at which the luminance in the state before the deterioration state can be obtained, so that the deterioration state of the luminance of the organic EL device can be easily compensated. For this reason, it is possible to easily maintain a bright display image of the organic EL device.

The first embodiment will be described with reference to the drawings.
As shown in FIG. 1, the transmission / reception system 1 according to the first embodiment includes a client device 3 and a server device 5. In the transmission / reception system 1, data is transmitted and received between the client device 3 and the server device 5 via a communication line 7 such as the Internet.

A display device 9 is connected to the client device 3. The display device 9 includes a display unit 10 that displays an image. The client device 3 controls driving of the display unit 10.
In addition, an input device 11 such as a keyboard can be connected to the client device 3. The client device 3 can display information input to the client device 3 via the input device 11 on the display unit 10 of the display device 9.

The server device 5 stores various data related to the display unit 10. The server device 5 transmits data related to the display unit 10 to the client device 3 based on a request from the client device 3.
On the other hand, when the client device 3 receives data related to the display unit 10 from the server device 5, the client device 3 controls driving of the display unit 10 based on this data.

Here, the configuration of the display unit 10 will be described.
An organic EL device having an organic EL element is applied to the display unit 10. As shown in FIG. 2 which is a plan view, the display unit 10 has a display surface 51.
A plurality of pixels 53 are set in the display unit 10. The plurality of pixels 53 are arranged in the display area 55 in the X direction and the Y direction in the drawing, and form a matrix M in which the X direction is the row direction and the Y direction is the column direction. The display unit 10 can display an image on the display surface 51 by selectively emitting light from the plurality of pixels 53 through the display surface 51 to the outside of the display unit 10. The display area 55 is an area where an image can be displayed. In FIG. 2, the pixels 53 are exaggerated and the number of the pixels 53 is reduced for easy understanding of the configuration.

The display unit 10 includes an element substrate 61 and a sealing substrate 63 as shown in FIG. 3 which is a cross-sectional view taken along the line AA in FIG.
The element substrate 61 is provided with an organic EL element, which will be described later, corresponding to each of the plurality of pixels 53 on the display surface 51 side, that is, the sealing substrate 63 side. The surface 65 of the element substrate 61 opposite to the display surface 51 side is set as the bottom surface of the display unit 10. Hereinafter, the surface 65 is referred to as a bottom surface 65.

The sealing substrate 63 is provided in a state facing the element substrate 61 on the display surface 51 side with respect to the element substrate 61. The element substrate 61 and the sealing substrate 63 are bonded via an adhesive 66. In the display unit 10, the organic EL element is covered with the adhesive 66 from the display surface 51 side.
Further, the element substrate 61 and the sealing substrate 63 are sealed with a sealing material 67 that surrounds the display region 55 inside the periphery of the display unit 10. That is, in the display unit 10, the organic EL element and the adhesive 66 are sealed with the element substrate 61, the sealing substrate 63, and the sealing material 67.

Here, in the plurality of pixels 53 in the display unit 10, the colors of light emitted from the display surface 51 are red (R), green (G), and blue (B) as shown in FIG. Is set to one of these. In other words, the plurality of pixels 53 constituting the matrix M include a pixel 53r that emits R light, a pixel 53g that emits G light, and a pixel 53b that emits B light.
In the following, the notation of pixel 53 and the notation of pixel 53r, pixel 53g, and pixel 53b are used appropriately.

  Here, the color of R is not limited to a pure red hue, and includes orange and the like. The color of G is not limited to a pure green hue, and includes blue-green and yellow-green. The color of B is not limited to a pure blue hue, and includes bluish purple and blue-green. From another viewpoint, light exhibiting the color of R can be defined as light having a light wavelength peak in a range of 570 nm or more in the visible light region. The light exhibiting the color G can be defined as light having a light wavelength peak in the range of 500 nm to 565 nm. Light exhibiting the color B can be defined as light having a light wavelength peak in the range of 415 nm to 495 nm.

In the matrix M, a plurality of pixels 53 arranged in the Y direction form one pixel column 68. A plurality of pixels 53 arranged along the X direction constitute one pixel row 69. The light color of each pixel 53 in one pixel column 68 is set to one of R, G, and B. That is, the matrix M includes a pixel column 68r in which a plurality of pixels 53r are arranged in the Y direction, a pixel column 68g in which the plurality of pixels 53g are arranged in the Y direction, and a pixel column 68b in which the plurality of pixels 53b are arranged in the Y direction. have. In the display unit 10, the pixel column 68r, the pixel column 68g, and the pixel column 68b are repeatedly arranged in this order along the X direction.
In the following, the notation of the pixel column 68 and the notation of the pixel column 68r, the pixel column 68g, and the pixel column 68b are appropriately used.

As shown in FIG. 5, which shows a circuit configuration, the display unit 10 includes a TFT (Thin Film Transistor) element 71, a TFT element 73, a storage capacitor 75, and an organic EL element 77 for each pixel 53. Have. Each organic EL element 77 has a pixel electrode 79, an organic layer 81, and a common electrode 83.
The display unit 10 includes a scanning line driving circuit 84, a data line driving circuit 85, a plurality of scanning lines GT, a plurality of data lines SI, and a plurality of power supply lines PW.

The plurality of scanning lines GT are respectively connected to the scanning line driving circuit 84 and extend in the X direction with a space therebetween in the Y direction.
The plurality of data lines SI are respectively connected to the data line driving circuit 85, and extend in the Y direction in a state spaced from each other in the X direction.
The plurality of power supply lines PW extend in the Y direction in a state in which the power supply lines PW are spaced from each other in the X direction, and the power supply lines PW and the data lines SI are spaced in the X direction.

Each pixel 53 is set corresponding to the intersection of each scanning line GT and each data line SI. Each scanning line GT corresponds to each pixel row 69 shown in FIG. Each data line SI and each power supply line PW correspond to each pixel column 68 shown in FIG.
The gate electrode of each TFT element 71 shown in FIG. 5 is electrically connected to each corresponding scanning line GT. The source electrode of each TFT element 71 is electrically connected to each corresponding data line SI. The drain electrode of the TFT element 71 is electrically connected to the gate electrode of the TFT element 73 and one electrode of the storage capacitor 75.

The other electrode of the storage capacitor 75 and the source electrode of the TFT element 73 are electrically connected to each corresponding power supply line PW.
The drain electrode of each TFT element 73 is electrically connected to each pixel electrode 79. Each pixel electrode 79 and the common electrode 83 constitute a pair of electrodes having the pixel electrode 79 as an anode and the common electrode 83 as a cathode.
Here, the common electrode 83 is provided in a series of states between the plurality of pixels 53 constituting the matrix M, and functions in common between the plurality of pixels 53.
The organic layer 81 interposed between each pixel electrode 79 and the common electrode 83 is made of an organic material and has a structure including a light emitting layer to be described later.

  The TFT element 71 is turned on when a scanning signal is supplied to the scanning line GT connected to the TFT element 71. At this time, a data signal is supplied from the data line SI connected to the TFT element 71, and the TFT element 73 is turned on. The gate potential of the TFT element 73 is held for a certain period by holding the data signal potential in the holding capacitor 75 for a certain period. Thereby, the ON state of the TFT element 73 is held for a certain period. Each data signal is generated at a potential corresponding to the gradation display.

When the TFT element 73 is kept in the ON state, a current corresponding to the gate potential of the TFT element 73 flows from the power supply line PW to the common electrode 83 through the pixel electrode 79 and the organic layer 81. Then, the light emitting layer included in the organic layer 81 emits light with a luminance corresponding to the amount of current flowing through the organic layer 81. Thereby, the display unit 10 can perform gradation display.
The display unit 10 is one of top emission type organic EL devices in which a light emitting layer included in the organic layer 81 emits light, and light from the light emitting layer is emitted from the display surface 51 through the sealing substrate 63. In the display unit 10, the expression of the display surface 51 side is also expressed as the upper side, and the expression of the bottom surface 65 side is also expressed as the lower side.

Here, the details of the configurations of the element substrate 61 and the sealing substrate 63 will be described.
The element substrate 61 has a first substrate 91 as shown in FIG. 6 which is a cross-sectional view taken along the line CC in FIG. In FIG. 6, the TFT element 71, the storage capacitor 75, and the data line SI are omitted for easy understanding of the configuration.
The first substrate 91 is made of a light-transmitting material such as glass or quartz, for example, and includes a first surface 92a facing the display surface 51 and a second surface 92b facing the bottom surface 65. have.

A gate insulating film 93 is provided on the first surface 92 a of the first substrate 91. An insulating film 95 is provided on the display surface 51 side of the gate insulating film 93. An insulating film 97 is provided on the display surface 51 side of the insulating film 95.
A semiconductor layer 101 is provided on the first surface 92 a of the first substrate 91 corresponding to the TFT element 73 of each pixel 53. The semiconductor layer 101 is covered from the display surface 51 side by the gate insulating film 93. As a material of the gate insulating film 93, for example, a material such as silicon oxide can be adopted.

  On the display surface 51 side of the gate insulating film 93, a gate electrode 103 is provided in a region overlapping the semiconductor layer 101 in plan view. As a material of the gate electrode 103, for example, a metal such as aluminum, copper, molybdenum, tungsten, or chromium, or an alloy containing these metals can be employed. The gate electrode 103 is covered with the insulating film 95 from the display surface 51 side.

  On the display surface 51 side of the insulating film 95, a source electrode 105 is provided in a region overlapping a source region (not shown) of the semiconductor layer 101 in plan view. The source electrode 105 is connected to a source region (not shown) of the semiconductor layer 101 through a contact hole 107 provided in the insulating film 95 and the gate insulating film 93. As a material of the source electrode 105, for example, a metal such as aluminum, copper, molybdenum, tungsten, or chromium, or an alloy containing these metals can be employed. The source electrode 105 is covered with the insulating film 97 from the display surface 51 side.

  A pixel electrode 79 is provided on the display surface 51 side of the insulating film 97. The pixel electrode 79 is connected to a drain region (not shown) of the semiconductor layer 101 through a contact hole 109 provided in the insulating film 97, the insulating film 95, and the gate insulating film 93. As a material of the pixel electrode 79, for example, a light-reflective metal such as silver, platinum, aluminum, or copper, or an alloy containing these metals can be employed.

When the pixel electrode 79 functions as an anode, it is preferable to use a material having a relatively high work function such as silver or platinum. In addition, a configuration in which ITO (Indium Tin Oxide), indium zinc oxide (Indium Zinc Oxide), or the like is used as the pixel electrode 79 and a light reflective member is provided between the pixel electrode 79 and the first substrate 91 is also employed. Can be done.
In addition, as the material of the insulating film 95 and the insulating film 97, for example, materials such as silicon oxide, silicon nitride, and acrylic resin can be employed.

  An insulating film 111 that partitions each pixel 53 is provided over the region 112 between adjacent pixel electrodes 79. The insulating film 111 is made of a light-transmitting material such as silicon oxide, silicon nitride, or acrylic resin, and is provided in a lattice shape in plan view. The insulating film 111 is provided in a lattice shape over the display region 55. For this reason, the display area 55 is partitioned into areas of a plurality of pixels 53 by the insulating film 111. Each pixel electrode 79 overlaps the region of each pixel 53 surrounded by the insulating film 111 in plan view.

On the display surface 51 side of the insulating film 111, a light shielding film 113 surrounding the region of each pixel 53 is provided. The light shielding film 113 is made of, for example, an acrylic resin or a polyimide resin containing a material having a high light absorption property such as carbon black or chromium, and is provided in a lattice shape in a plan view.
On the display surface 51 side of the pixel electrode 79, an organic layer 81 is provided in a region surrounded by the light shielding film 113.

The organic layer 81 is provided corresponding to each pixel 53 and includes a hole injection layer 115, a hole transport layer 117, and a light emitting layer 119.
The hole injection layer 115 is made of an organic material, and is provided on the display surface 51 side of the pixel electrode 79 in a region surrounded by the insulating film 111 in a plan view.
As the organic material for the hole injection layer 115, a mixture of a polythiophene derivative such as 3,4-polyethylenedioxythiophene (PEDOT) and polystyrene sulfonic acid (PSS) or the like may be employed. As the organic material for the hole injection layer 115, polystyrene, polypyrrole, polyaniline, polyacetylene, derivatives thereof, and the like can be employed.

The hole transport layer 117 is made of an organic material, and is provided on the display surface 51 side of the hole injection layer 115 in a region surrounded by the light shielding film 113 in plan view.
As the organic material of the hole transport layer 117, for example, a configuration including a triphenylamine-based polymer such as TFB shown as the following compound 1 can be adopted.

The light emitting layer 119 is made of an organic material, and is provided on the display surface 51 side of the hole transport layer 117 in a region surrounded by the light shielding film 113 in plan view.
As the organic material of the light emitting layer 119 corresponding to the R pixel 53r, for example, a mixture of F8 (polydioctylfluorene) shown as the following compound 2 and a perylene dye may be employed.

  As the organic material of the light emitting layer 119 corresponding to the G pixel 53g, for example, a mixture of F8BT shown as the following compound 3, TFB shown as the compound 1 and F8 shown as the compound 2 is adopted. Can be done.

  As an organic material of the light emitting layer 119 corresponding to the B pixel 53b, for example, F8 shown as the compound 2 can be adopted.

On the display surface 51 side of the organic layer 81, as shown in FIG. 6, an electron injection layer 121 is provided in a region surrounded by the light shielding film 113. As a material of the electron injection layer 121, for example, calcium or the like can be adopted.
A common electrode 83 is provided on the display surface 51 side of the electron injection layer 121. The common electrode 83 is made of, for example, a light-transmitting material such as ITO or indium zinc oxide, or a material made of magnesium silver or the like that has been made thin to impart light transmission, and the electron injection layer 121 and the light shielding film 113. Is covered between the plurality of pixels 53 from the display surface 51 side.

  In the display unit 10, the region that emits light in each pixel 53 can be defined as a region where the pixel electrode 79, the organic layer 81, and the common electrode 83 overlap in plan view. In addition, a group of elements constituting a region that emits light for each pixel 53 may be defined as one organic EL element 77. In the display unit 10, one organic EL element 77 includes one pixel electrode 79, one organic layer 81, one electron injection layer 121, and a common electrode 83 corresponding to one pixel 53. have.

The sealing substrate 63 is made of a light-transmitting material such as glass or quartz, and has an outward surface 63a directed toward the display surface 51 and an opposing surface 63b directed toward the bottom surface. ing.
In the element substrate 61 and the sealing substrate 63 having the above-described configuration, the common electrode 83 of the element substrate 61 and the facing surface 63b of the sealing substrate 63 are bonded via an adhesive 66.

  In the display unit 10, the sealing material 67 illustrated in FIG. 3 is sandwiched between the first surface 92 a of the first substrate 91 and the facing surface 63 b of the sealing substrate 63 illustrated in FIG. 6. That is, in the display unit 10, the organic EL element 77 and the adhesive 66 are sealed with the first substrate 91, the sealing substrate 63, and the sealing material 67. The sealing material 67 may be provided between the facing surface 63 b and the common electrode 83. In this case, the organic EL element 77 and the adhesive 66 can be regarded as being sealed by the element substrate 61, the sealing substrate 63, and the sealing material 67.

The display unit 10 having the above configuration is controlled by the client device 3 shown in FIG.
As shown in FIG. 7 which is a block diagram, the client device 3 includes a control unit 131, a display controller 133, an input controller 135, a voltage detection unit 137, a transmission unit 139, and a reception unit 141. Yes.

The control unit 131 is configured by a microcomputer, for example, and includes a CPU (Central Processing Unit) 143 and a memory unit 145.
The CPU 143 performs control and arithmetic processing of each of the above components.
The memory unit 145 has a configuration including a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.
The ROM stores a program such as an operating system. In the RAM, various programs executed by the CPU 143 and various data in arithmetic processing are temporarily expanded.

The display controller 133 controls driving of the display unit 10 based on a command from the CPU 143.
The input controller 135 sends data input via the input device 11 to the CPU 143. The CPU 143 stores the data received from the input controller 135 in the RAM of the memory unit 145. The display controller 133 generates a display signal based on the data stored in the RAM of the memory unit 145. The display unit 10 performs display based on the display signal generated by the display controller 133.

The voltage detection unit 137 detects a voltage value when the display unit 10 is driven with a predetermined drive current based on a command from the CPU 143, and sends the detected voltage value to the CPU 143 as voltage data.
The transmission unit 139 transmits the ID information of the display unit 10 and the voltage data described above to the server device 5 based on a command from the CPU 143.
The reception unit 141 receives various data transmitted from the server device 5 and then transmits these various data to the CPU 143.

The server device 5 includes a control unit 151, a reception unit 153, an authentication unit 155, a data storage unit 157, and a transmission unit 159.
The control unit 151 is configured by a microcomputer, for example, and includes a CPU 161 and a memory unit 163.
The CPU 161 performs the control and arithmetic processing of each component described above.
The memory unit 163 has a configuration including a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.
Various programs are stored in the ROM. In the RAM, various programs executed by the CPU 161 and various data in arithmetic processing are temporarily expanded.

The reception unit 153 receives the ID information and voltage data of the display unit 10 transmitted from the client device 3, and then sends the ID information and voltage data to the authentication unit 155.
The authentication unit 155 verifies the ID information on the display unit 10 and authenticates the connection between the client device 3 and the server device 5. When the connection between the client device 3 and the server device 5 is authenticated, the authentication unit 155 sends the ID information and voltage data of the display unit 10 to the CPU 161.

The data storage unit 157 stores characteristic data related to the characteristics of the display unit 10 for each model of the display unit 10. The characteristic data includes current characteristic data with respect to the voltage of the organic layer 81, luminance characteristic data with respect to the current of the organic layer 81, and the like.
The transmission unit 159 transmits a correction current value for the drive current of the display unit 10 to the client device 3 as correction data based on a command from the CPU 161. The correction current value is calculated by the CPU 161.

As shown in FIG. 8, the current characteristic data of the display unit 10 is collected for each deterioration state according to the deterioration state of the display unit 10. As illustrated in FIG. 9, the luminance characteristic data of the display unit 10 is collected for each deterioration state according to the deterioration state of the display unit 10.
The characteristic data stored in the data storage unit 157 includes a plurality of current characteristic data VI (FIG. 8) collected for each deterioration state of the display unit 10 and a plurality of luminance characteristic data IL (FIG. 9). ing. A plurality of current characteristic data VI for each deterioration state, as shown in FIG. 8, are enclosed as the deterioration characteristic data R _I of the current characteristics. Further, as shown in FIG. 9, the plurality of luminance characteristic data IL for each deterioration state is bundled as deterioration characteristic data _RL for luminance characteristics.

In the display unit 10, the voltage V applied to the organic layer 81 when the organic layer 81 is driven with a predetermined driving current I ₀ changes according to the deterioration state as shown in FIG. 8. In FIG. 8, the voltage V ₀ in the initial state (0) before the display unit 10 deteriorates changes to the voltage V ₁ in the deterioration state (1), and changes to the voltage V ₂ in the deterioration state (2). The situation is shown.

Further, in the display unit 10, the luminance L of the organic layer 81 when the organic layer 81 is driven with a predetermined driving current I ₀ changes according to the deterioration state as shown in FIG. 9. In FIG. 9, the luminance L ₀ in the initial state (0) before the display unit 10 deteriorates changes to the luminance L ₁ in the deterioration state (1), and changes to the luminance L ₂ in the deterioration state (2). The situation is shown.
That is, in the display unit 10, the voltage V applied to the organic layer 81 increases and the luminance L of the organic layer 81 decreases according to the deterioration state.

Therefore, in the present embodiment, a driving method for correcting the luminance of the display unit 10 based on a voltage when the light emitting layer 119 is caused to emit light with a predetermined current is employed as a driving method of the display unit 10.
In this driving method, first, the deterioration state of the display unit 10 is grasped based on the voltage when the light emitting layer 119 emits light with a predetermined driving current I ₀ .
Assume that the voltage at this time is, for example, the voltage V ₁ shown in FIG. The deterioration state of the display unit 10 ascertained from the voltage V ₁ is the deterioration state (1) shown in FIG.

Next, the difference between the current at which the initial brightness L ₀ is obtained in the organic layer 81 in the deteriorated state (1) and the drive current I ₀ is set as a correction value.
The current at which the luminance L ₀ is obtained in the organic layer 81 in the deteriorated state (1) is the current I _{1 as shown} in FIG. Therefore, in this case, the difference I _S between the current I ₁ and the drive current I ₀ is set as the correction current value.
Then, a new drive current I ₀ obtained by adding the correction value to the previous drive current I _0, is set as a new drive current I ₀ at the time of driving the display unit 10.

In the transmission / reception system 1 shown in FIG. 7, first, the CPU 143 of the client device 3 outputs a test display command to the display controller 133. At this time, the CPU 143 also outputs drive current data stored in the memory unit 145 to the display controller 133. The drive current data is data indicating a value of a predetermined drive current I ₀ that should drive the display unit 10.
The display controller 133 drives the display unit 10 with a predetermined drive current I ₀ based on a test display command. At this time, the display controller 133 drives the display unit 10 so that the drive current I ₀ is supplied to all the pixels 53 in the display area 55 of the display unit 10.

Next, the CPU 143 outputs a voltage detection command to the voltage detection unit 137. The voltage detection unit 137 detects the voltage V applied to each organic layer 81 based on the voltage detection command, and then outputs voltage data indicating the voltage V to the CPU 143.
Next, the CPU 143 outputs a transmission command to the transmission unit 139. Based on this transmission command, the transmission unit 139 transmits the voltage data and the ID information of the display unit 10 toward the server device 5.

In the server device 5, when the receiving unit 153 receives the voltage data and the ID information of the display unit 10 from the client device 3, the CPU 161 collates the ID information and obtains characteristic data suitable for the model of the display unit 10 as the data storage unit 157. Read from. The characteristic data read by the CPU 161 is expanded in the RAM of the memory unit 163.
Then, CPU 161 collates the voltage data to the deterioration characteristic data R _I of the current characteristics, determining the deterioration state of the display unit 10.

Next, the CPU 161 collates the determined degradation state of the display unit 10 with the degradation characteristic data _RL of the luminance characteristic, and calculates the difference _IS as a correction current value from the collated luminance characteristic data IL.
Next, the CPU 161 outputs a transmission command to the transmission unit 159. The transmission unit 159 transmits correction data indicating the correction current value to the client device 3 based on the transmission command.

In the client device 3, when the receiving unit 141 receives the correction data from the server device 5, the CPU 143 stores the correction data in the memory unit 145.
Then, when the display controller 133 drives the display unit 10, the CPU 143 reads correction data from the memory unit 145, and causes the display unit 10 to be displayed with a new drive current I _{0 obtained} by adding the read correction data to the drive current data. Drive.

In the first embodiment, the client device 3 corresponds to an electronic device, the display unit 10 corresponds to an organic EL device, the control unit 131 corresponds to a control unit of the electronic device, and the control unit 151 serves as a control unit of the server device. It corresponds.
In the first embodiment, a driving method for correcting the luminance of the display unit 10 based on a voltage when the light emitting layer 119 emits light with a predetermined current is employed as a driving method of the display unit 10. For this reason, it is possible to easily maintain a bright display image of the display unit 10 configured by the organic EL device.

  Further, in the first embodiment, the deterioration state of the organic layer 81 is grasped based on the voltage when the light emitting layer 119 is caused to emit light with a predetermined current, so that the deterioration state of the organic layer 81 can be easily grasped accurately. Here, the deterioration state of the organic layer 81 can be estimated, for example, by integrating the driving time of the display unit 10. However, the deterioration state of the display unit 10 may vary depending on the driving environment of the display unit 10. For this reason, in the integration of the driving time, the grasped deterioration state may vary. On the other hand, in the first embodiment, the deterioration state of the organic layer 81 is grasped based on the voltage when the light emitting layer 119 is caused to emit light with a predetermined current. Therefore, the deterioration state of the organic layer 81 is easily grasped accurately. .

In the first embodiment, since the grasping on the basis of the deteriorated state of the organic layer 81 on the deterioration characteristic data R _I of the current characteristics of the display unit 10, making it easy to grasp the deteriorated state of the organic layer 81 more accurately it can.
In the first embodiment, the grasped deterioration state of the organic layer 81 is collated with the deterioration characteristic data _RL of the luminance characteristic, and the deteriorated luminance at the predetermined drive current I ₀ is grasped in the collated luminance characteristic data IL. To do. Then, in the luminance characteristic data IL, and set the current brightness L ₀ is obtained is deteriorated before the luminance at a given drive current I _0, the difference I _S with a predetermined drive current I ₀ as the correction current value, A new drive current I ₀ is set by adding the correction current value to the previous drive current I ₀ . For this reason, the drive current I ₀ of the display unit 10 can be brought close to the current value at which the luminance L ₀ in the initial state (0) can be obtained. As a result, the luminance L of the display unit 10 can be easily brought close to the luminance L _0, and the display image of the display unit 10 can be easily maintained bright.

Here, the second embodiment will be described.
The transmission / reception system 20 of the second embodiment has a client device 30 as shown in FIG. 10 which is a block diagram.
The transmission / reception system 20 has the same configuration as the transmission / reception system 1 of the first embodiment, except that the client device 3 in the first embodiment shown in FIG. 7 is replaced with the client device 30 shown in FIG. have. Therefore, in 2nd Embodiment, about the same structure as the transmission / reception system 1 among each structure of the transmission / reception system 20, the same code | symbol as 1st Embodiment is attached | subjected and detailed description is abbreviate | omitted, and 1st Embodiment. Only the differences will be described.

The client device 30 is the same as the client device 3 except that the voltage detection unit 137 of the client device 3 in the first embodiment shown in FIG. 7 is replaced with the current detection unit 171 shown in FIG. It has a configuration.
In the client device 30, first, the CPU 143 outputs a test display command to the display controller 133. At this time, the CPU 143 also outputs drive voltage data stored in the memory unit 145 to the display controller 133. The drive voltage data is data indicating a value of a predetermined drive voltage V ₀ that should drive the display unit 10.
The display controller 133 drives the display unit 10 with a predetermined drive voltage V ₀ based on a test display command. At this time, the display controller 133 drives the display unit 10 so that the drive voltage V ₀ is applied to all the pixels 53 in the display area 55 of the display unit 10.

Next, the CPU 143 outputs a current detection command to the current detection unit 171. The current detection unit 171 detects the current I flowing through each organic layer 81 based on the current detection command, and then outputs current data indicating the current I to the CPU 143.
Next, the CPU 143 outputs a transmission command to the transmission unit 139. The transmission unit 139 transmits the current data and the ID information of the display unit 10 toward the server device 5 based on the transmission command.

  In the server device 5, when the receiving unit 153 receives the current data and the ID information of the display unit 10 from the client device 30, the CPU 161 collates the ID information and obtains characteristic data suitable for the model of the display unit 10 as the data storage unit 157. Read from. The characteristic data read by the CPU 161 is expanded in the RAM of the memory unit 163.

Here, the data storage unit 157 of the server device 5, and the deterioration characteristic data R _I of the current characteristic shown in FIG. 11, and the deterioration characteristic data R _V of a luminance characteristic shown in FIG. 12 are stored.
The luminance characteristic deterioration characteristic data R _V in the second embodiment includes a plurality of luminance characteristic data VL collected for each deterioration state of the display unit 10. The luminance characteristic data VL indicates the luminance characteristic with respect to the voltage of the organic layer 81.

Then, CPU 161 is a current data collates the deterioration characteristic data R _I of the current characteristic shown in FIG. 11, determines the deterioration state of the display unit 10.
Next, the CPU 161 collates the determined degradation state of the display unit 10 with the degradation characteristic data R _V of the luminance characteristics shown in FIG. 12, and calculates the difference V _S as a correction voltage value from the collated luminance characteristic data VL.
Next, the CPU 161 outputs a transmission command to the transmission unit 159. The transmission unit 159 transmits correction data indicating the correction voltage value to the client device 30 based on the transmission command.

In the client device 30, when the receiving unit 141 receives the correction data from the server device 5, the CPU 143 stores the correction data in the memory unit 145.
When the CPU 143 causes the display controller 133 to drive the display unit 10, the correction data is read from the memory unit 145, and the display unit 10 is moved with the new drive voltage V _{0 obtained} by adding the read correction data to the drive voltage data. Drive.
In the transmission / reception system 20 according to the second embodiment, the same effects as those of the first embodiment can be obtained.

Here, three embodiments will be described.
As shown in FIG. 13 which is a block diagram, the transmission / reception system 40 of the third embodiment is the transmission / reception of the first embodiment, except that the client device 50 includes the display unit 10 and the input device 11. It has the same configuration as the system 1. Therefore, in 3rd Embodiment, about the same structure as the transmission / reception system 1 among each structure of the transmission / reception system 40, the same code | symbol as 1st Embodiment is attached | subjected and detailed description is abbreviate | omitted.

An example of the client device 50 is an electronic device 500 such as a mobile phone shown in FIG. In this case, the client device 50 and the server device 5 shown in FIG. 13 transmit and receive data by wireless communication. In the electronic device 500 shown in FIG. 14, the operation button 511 corresponds to the input device 11 shown in FIG. The display unit 10 can display various information including contents input via the operation buttons 511 and incoming call information.
In the transmission / reception system 40 according to the third embodiment, the same effects as those of the first embodiment can be obtained.

Here, the fourth embodiment will be described.
The transmission / reception system 60 of the fourth embodiment includes a client device 70 as shown in FIG. 15 which is a block diagram.
The transmission / reception system 60 has the same configuration as the transmission / reception system 40 of the third embodiment, except that the client device 50 in the third embodiment shown in FIG. 13 is replaced with the client device 70 shown in FIG. have. Therefore, in 4th Embodiment, about the same structure as the transmission / reception system 40 among each structure of the transmission / reception system 60, the same code | symbol as 3rd Embodiment is attached | subjected and detailed description is abbreviate | omitted, and 3rd Embodiment Only the differences will be described.

The client device 70 is the same as the client device 50 except that the voltage detection unit 137 of the client device 50 in the third embodiment shown in FIG. 13 is replaced with a current detection unit 171 shown in FIG. It has a configuration.
The current detection unit 171 has the same configuration as the current detection unit 171 in the second embodiment shown in FIG.
Further, the data storage unit 157 of the server apparatus 5 shown in FIG. 15, a deterioration characteristic data R _I of the current characteristic shown in FIG. 11, and the deterioration characteristic data R _V of a luminance characteristic shown in FIG. 12 are stored.

CPU161 server device 5, the current data received from the client device 70 collates the deterioration characteristic data R _I of the current characteristic shown in FIG. 11, it determines the deterioration state of the display unit 10.
Next, the CPU 161 collates the determined degradation state of the display unit 10 with the degradation characteristic data R _V of the luminance characteristics shown in FIG. 12, and calculates the difference V _S as a correction voltage value from the collated luminance characteristic data VL.

In the client device 70, when the receiving unit 141 receives the correction data from the server device 5, the CPU 143 stores the correction data in the memory unit 145.
When the CPU 143 causes the display controller 133 to drive the display unit 10, the correction data is read from the memory unit 145, and the display unit 10 is moved with the new drive voltage V _{0 obtained} by adding the read correction data to the drive voltage data. Drive.
In the transmission / reception system 60 according to the fourth embodiment, the same effects as those of the first to third embodiments can be obtained.

In each of the first to fourth embodiments, various timings can be adopted as the timing at which each of the client devices 3, 30, 50, and 70 acquires the correction data.
For example, the timing at which each of the client devices 3, 30, 50, and 70 acquires the correction data is the timing at which the power of the display unit 10 changes from the off state to the on state, every predetermined period, or the display unit 10 For example, every predetermined time during which the display is performed, or a combination timing thereof may be employed.

In the first to fourth embodiments, a top emission type organic EL device that emits light from the organic layer 81 from the display surface 51 through the sealing substrate 63 is taken as an example of the display unit 10. Although described, the organic EL device is not limited to this. As the organic EL device, a bottom emission type in which light from the organic layer 81 is emitted from the bottom surface 65 through the element substrate 61 can be adopted.
In the case of the bottom emission type, since the light from the organic layer 81 is emitted from the bottom surface 65, the display surface 51 is set on the bottom surface 65 side. That is, in the bottom emission type, the bottom surface 65 of the display unit 10 and the display surface 51 are interchanged. In the bottom emission type, the bottom surface 65 side corresponds to the upper side, and the display surface 51 side corresponds to the lower side.

  In the first to fourth embodiments, in the test display, the voltage V applied to each organic layer 81 and the current flowing through each organic layer 81 in a state where all the pixels 53 in the display area 55 are energized. Although the case where I is detected has been described as an example, the detection of the voltage V and the current I is not limited to this. As the detection of the voltage V and the current I, for example, a method of detecting each of the pixel 53r, the pixel 53g, and the pixel 53b can be employed.

  If the voltage V and current I are detected for each of the pixels 53r, 53g, and 53b, correction data can be set for each of the pixels 53r, 53g, and 53b. Thereby, even if the deterioration state is different for each of the pixel 53r, the pixel 53g, and the pixel 53b, it is possible to easily correct the luminance L to be appropriate for each of the pixel 53r, the pixel 53g, and the pixel 53b.

  In the first to fourth embodiments, the server device 5 has characteristic data about the display unit 10 and the server device 5 generates correction data. However, the correction data The generation is not limited to this. As the generation of the correction data, for example, a method of causing each of the client devices 3, 30, 50 and 70 to generate the correction data may be employed.

In this case, the characteristic data regarding the display unit 10 is stored in the memory unit 145 of each of the client devices 3, 30, 50 and 70. Then, the CPU 143 reads the characteristic data stored in the memory unit 145, and generates correction data based on the read characteristic data, voltage data, and current data.
In a configuration in which each client device 3, 30, 50 and 70 generates correction data, the server device 5 can be omitted. In this configuration, the transmission unit 139 and the reception unit 141 in each of the client devices 3, 30, 50, and 70 can be omitted.

On the other hand, in the transmission / reception systems 1, 20, 40, and 60 in which the server device 5 has characteristic data related to the display unit 10 and the server device 5 generates correction data, new characteristic data and a new driving method are used. And the like can be added or updated to the server device 5 at any time.
In addition, deterioration state data relating to many display units 10 that have been widely marketed can be collected widely as field data, which can contribute to the promotion of improvements related to the display unit 10.
In these respects, it is preferable that the server device 5 holds the characteristic data regarding the display unit 10 and the server device 5 generates the correction data.

The figure explaining the outline structure of the transmission / reception system in 1st Embodiment. The top view which shows the display part in this embodiment. Sectional drawing in the AA line in FIG. FIG. 4 is a plan view showing a part of a plurality of pixels of a display unit in the present embodiment. The figure which shows the circuit structure of the display part in this embodiment. Sectional drawing in the CC line | wire in FIG. 1 is a block diagram illustrating a schematic configuration of a transmission / reception system according to a first embodiment. The figure which shows the example of the deterioration characteristic data of the current characteristic in 1st Embodiment. The figure which shows the example of the deterioration characteristic data of the luminance characteristic in 1st Embodiment. The block diagram explaining the structure of the outline of the transmission / reception system in 2nd Embodiment. The figure which shows the example of the deterioration characteristic data of the current characteristic in 2nd Embodiment. The figure which shows the example of the deterioration characteristic data of the luminance characteristic in 2nd Embodiment. The block diagram explaining the outline structure of the transmission / reception system in 3rd Embodiment. The perspective view of the electronic device to which the display part in this embodiment was applied. The block diagram explaining the schematic structure of the transmission / reception system in 4th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,20,40,60 ... Transmission / reception system, 3,30,50,70 ... Client apparatus, 5 ... Server apparatus, 7 ... Communication line, 9 ... Display apparatus, 10 ... Display part, 51 ... Display surface, 53 ... Pixel 55 ... display area 61 ... element substrate 63 ... sealing substrate 77 ... organic EL element 79 ... pixel electrode 81 ... organic layer 83 ... common electrode 91 ... first substrate 115 ... hole injection layer DESCRIPTION OF SYMBOLS 117 ... Hole transport layer, 119 ... Light emitting layer, 131 ... Control part, 137 ... Voltage detection part, 139 ... Transmission part, 141 ... Reception part, 143 ... CPU, 145 ... Memory part, 151 ... Control part, 153 ... Receiving unit, 159 ... transmitting unit, 161 ... CPU, 163 ... memory unit, 171 ... current detecting unit, 500 ... electronic device, VI ... current characteristic data, IL ... luminance characteristic data, VL ... luminance characteristic data, _RI ... current Characteristic deterioration characteristic data , Deterioration characteristic data of the R _L ... luminance characteristics, deterioration characteristic data of the R _V ... luminance characteristics.

Claims (16)

A driving method of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes sandwiching the organic layer,
Based on the voltage value when the light emitting layer emits light at a predetermined current value, grasp the deterioration state of the organic layer,
A difference between the current value at which the brightness before the deteriorated state is obtained in the organic layer in the deteriorated state and the predetermined current value is set as a correction value;
A method for driving an organic EL device, wherein when the light emitting layer emits light, the light emitting layer is caused to emit light with a new driving current obtained by adding the correction value to a driving current for causing the light emitting layer to emit light.   The deterioration state is grasped by checking the deterioration state by comparing the voltage value with respect to the predetermined current value with a deterioration characteristic of a current characteristic with respect to the voltage of the organic layer. A driving method of the organic EL device described. In the setting of the correction value, the deterioration state is collated with the deterioration characteristic of the luminance characteristic with respect to the current of the organic layer,
In the luminance characteristics that have been collated, grasp the deterioration luminance that is the luminance at the predetermined current value,
In the luminance characteristics of the state before the deterioration state, grasp the luminance before deterioration that is the luminance at the predetermined current value,
In the luminance characteristics where the deteriorated luminance is grasped, grasp the current value corresponding to the luminance before deterioration,
3. The method of driving an organic EL device according to claim 1, wherein the difference between the predetermined current value and the current value is set as the correction value. A driving method of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes sandwiching the organic layer,
Based on the current value when the light emitting layer emits light at a predetermined voltage value, grasp the deterioration state of the organic layer,
A voltage value at which brightness before the deteriorated state is obtained in the organic layer in the deteriorated state, and a difference between the predetermined voltage value is set as a correction value,
A method for driving an organic EL device, wherein when the light emitting layer emits light, the light emitting layer is caused to emit light with a new driving voltage obtained by adding the correction value to a driving voltage for causing the light emitting layer to emit light.   5. The deterioration state is grasped by comparing the current value with respect to the predetermined voltage value with a deterioration characteristic of a current characteristic with respect to the voltage of the organic layer by checking the deterioration state. A driving method of the organic EL device described. In the setting of the correction value, the deterioration state is collated with the deterioration characteristic of the luminance characteristic with respect to the voltage of the organic layer,
In the luminance characteristics that have been collated, grasp the deterioration luminance that is the luminance at the predetermined voltage value,
In the luminance characteristics in the state before the deterioration state, grasp the luminance before deterioration that is the luminance at the predetermined voltage value,
In the luminance characteristics in which the deteriorated luminance is grasped, grasp the voltage value corresponding to the luminance before deterioration,
6. The method for driving an organic EL device according to claim 4, wherein the difference between the predetermined voltage value and the voltage value is set as the correction value. A plurality of pixels are set in the organic EL device,
The plurality of pixels include a red pixel having the light emitting layer emitting light exhibiting a red color, a green pixel having the light emitting layer emitting light exhibiting a green color, and a blue color. A blue pixel having the light emitting layer that emits light to be exhibited, and
In grasping the deterioration state, grasp the deterioration state for each of the red pixel, the green pixel, and the blue pixel,
The organic light-emitting device according to any one of claims 1 to 6, wherein the correction value is set for each of the red pixel, the green pixel, and the blue pixel. Driving method of EL device. A control unit for controlling driving of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes sandwiching the organic layer;
A data storage unit storing drive current data indicating a drive current value when the light emitting layer emits light;
A voltage detector for detecting a voltage value when the light emitting layer is caused to emit light at the drive current value;
A transmission unit that transmits voltage data indicating the voltage value to a server storing deterioration characteristic data of current characteristics with respect to the voltage of the organic layer and deterioration characteristic data of luminance characteristics with respect to the current of the organic layer;
The server grasps the deterioration state of the organic layer based on the voltage value, the deterioration characteristic data of the current characteristic, and the deterioration characteristic data of the luminance characteristic, and from the deterioration state in the organic layer in the deterioration state A reception unit that receives a correction current value calculated as a difference between the current value from which the previous luminance is obtained and the drive current value as correction data from the server,
The control device causes the light emitting layer of the organic EL device to emit light with a new drive current value obtained by adding the correction current value to the drive current value. A control unit for controlling driving of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes sandwiching the organic layer;
A data storage unit storing drive current data indicating a drive current value when the light emitting layer emits light;
A voltage detector for detecting a voltage value when the light emitting layer is caused to emit light at the drive current value;
A memory unit storing deterioration characteristic data of current characteristics with respect to the voltage of the organic layer, and deterioration characteristic data of luminance characteristics with respect to the current of the organic layer;
The controller is
Based on the voltage value and the deterioration characteristic data of the current characteristic, grasp the deterioration state of the organic layer,
Based on the deterioration state and the deterioration characteristic data of the luminance characteristic, a correction current is obtained by correcting a difference between the drive current value and a current value at which the organic layer in the deterioration state can obtain luminance before the deterioration state. As a value,
An electronic apparatus characterized in that the light emitting layer of the organic EL device emits light with a new drive current value obtained by adding the correction current value to the drive current value. A control unit for controlling driving of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes sandwiching the organic layer;
A data storage unit storing drive voltage data indicating a drive voltage value when the light emitting layer emits light;
A current detector for detecting a current value when the light emitting layer is caused to emit light at the driving voltage value;
A transmission unit for transmitting current data indicating the current value to a server storing deterioration characteristic data of current characteristics with respect to the voltage of the organic layer and deterioration characteristic data of luminance characteristics with respect to the voltage of the organic layer;
The server grasps the deterioration state of the organic layer based on the current value, the deterioration characteristic data of the current characteristic, and the deterioration characteristic data of the luminance characteristic, and from the deterioration state in the organic layer in the deterioration state A correction voltage value calculated as a difference between the voltage value from which the previous luminance is obtained and the drive voltage value, and a reception unit that receives as correction data from the server,
The control device causes the light emitting layer of the organic EL device to emit light with a new drive voltage value obtained by adding the correction voltage value to the drive voltage value. A control unit for controlling driving of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes sandwiching the organic layer;
A data storage unit storing drive voltage data indicating a drive voltage value when the light emitting layer emits light;
A current detector for detecting a current value when the light emitting layer is caused to emit light at the driving voltage value;
A memory unit storing deterioration characteristic data of current characteristics with respect to the voltage of the organic layer, and deterioration characteristic data of luminance characteristics with respect to the voltage of the organic layer;
The controller is
Based on the current value and the deterioration characteristic data of the current characteristic, grasp the deterioration state of the organic layer,
Based on the deterioration state and the deterioration characteristic data of the luminance characteristic, a correction voltage is used to correct a difference between the drive voltage value and a voltage value at which the organic layer in the deterioration state can obtain luminance before the deterioration state. As a value,
An electronic apparatus characterized in that the light emitting layer of the organic EL device emits light with a new drive voltage value obtained by adding the correction voltage value to the drive voltage value.   The electronic apparatus according to claim 8, comprising the organic EL device. Voltage when the client device causes the light emitting layer to emit light at a predetermined current value from a client device that controls driving of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer A receiver for receiving the value as voltage data;
A data storage unit storing deterioration characteristic data of current characteristics with respect to the voltage of the organic layer, and deterioration characteristic data of luminance characteristics with respect to the current of the organic layer;
Based on the degradation characteristics data of the voltage value and the current characteristics, grasp the degradation state of the organic layer, and based on the degradation characteristics data of the degradation state and the luminance characteristics, the organic layer in the degradation state A control unit that calculates a difference between a current value at which luminance before the deterioration state is obtained and the predetermined current value as a correction current value;
And a transmission unit that transmits the correction current value as correction data to the client device. A current when the client device causes the light emitting layer to emit light at a predetermined voltage value from a client device that controls driving of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes that sandwich the organic layer. A receiving unit for receiving a value as current data;
A data storage unit storing deterioration characteristic data of current characteristics with respect to the voltage of the organic layer, and deterioration characteristic data of luminance characteristics with respect to the voltage of the organic layer;
Based on the current value and the deterioration characteristic data of the current characteristic, grasp the deterioration state of the organic layer, and based on the deterioration state and the deterioration characteristic data of the luminance characteristic, the organic layer in the deterioration state A control unit for calculating a difference between a voltage value at which luminance before the deteriorated state is obtained and the predetermined voltage value as a correction voltage value;
And a transmission unit that transmits the correction voltage value as correction data to the client device. A client device for controlling driving of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes sandwiching the organic layer;
A server device in which deterioration characteristic data of current characteristics with respect to the voltage of the organic layer and deterioration characteristic data of luminance characteristics with respect to the current of the organic layer are stored;
A transmission / reception system for transmitting / receiving data between the client device and the server device,
The client device is
A data storage unit storing drive current data indicating a drive current value when the light emitting layer emits light;
A voltage detector for detecting a voltage value when the light emitting layer is caused to emit light at the drive current value;
A transmission unit that transmits voltage data indicating the voltage value to the server device;
A receiving unit that receives, as correction data, a correction current value based on the degradation state of the light emitting layer from the server device;
A control unit for causing the light emitting layer to emit light with a new driving current value obtained by adding the correction current value to the driving current value when controlling the driving of the organic EL device,
The server device is
A receiving unit for receiving the voltage data;
A data storage unit storing the deterioration characteristics data of the current characteristics and the deterioration characteristics data of the luminance characteristics;
Based on the degradation characteristics data of the voltage value and the current characteristics, grasp the degradation state of the organic layer, and based on the degradation characteristics data of the degradation state and the luminance characteristics, the organic layer in the degradation state A control unit that calculates a difference between a current value at which luminance before the deteriorated state is obtained and the drive current value as a corrected current value;
And a transmission unit that transmits the correction current value as correction data to the client device. A client device for controlling driving of an organic EL device having an organic layer including a light emitting layer and a pair of electrodes sandwiching the organic layer;
A server device in which deterioration characteristic data of current characteristics with respect to the voltage of the organic layer and deterioration characteristic data of luminance characteristics with respect to the voltage of the organic layer are stored;
A transmission / reception system for transmitting / receiving data between the client device and the server device,
The client device is
A data storage unit storing drive voltage data indicating a drive voltage value when the light emitting layer emits light;
A current detector for detecting a current value when the light emitting layer is caused to emit light at the driving voltage value;
A transmission unit for transmitting current data indicating the current value to the server device;
A receiving unit that receives, as correction data, a correction voltage value based on the degradation state of the light emitting layer from the server device;
A control unit for causing the light emitting layer to emit light with a new drive voltage value obtained by adding the correction voltage value to the drive voltage value when controlling the driving of the organic EL device,
The server device is
A receiver for receiving the current data;
A data storage unit storing the deterioration characteristics data of the current characteristics and the deterioration characteristics data of the luminance characteristics;
Based on the current value and the deterioration characteristic data of the current characteristic, grasp the deterioration state of the organic layer, and based on the deterioration state and the deterioration characteristic data of the luminance characteristic, the organic layer in the deterioration state A control unit that calculates a difference between the voltage value at which the luminance before the deterioration state is obtained and the driving voltage value as a correction voltage value;
A transmission unit that transmits the correction voltage value as correction data to the client device.

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