KR20060019688A - An organic light emitting display device having different driving method on main display area and sub display area - Google Patents

Abstract

One panel is divided into two display areas, and a main display area which is a partial display area of the one panel and an auxiliary display area having a plurality of icon areas as the other partial display areas of the one panel are provided. In addition, the main display area and the auxiliary display area, the organic electroluminescent display device characterized in that the driving method is different from each other. The main display area includes a pixel including five transistors and one capacitor, and the auxiliary display area includes a pixel including two transistors and one capacitor. In the main display area and the auxiliary display area, a configuration form of a configuration pixel may use any one of a stripe mode array and a delta mode array. The main display area may use an active driving method, and the auxiliary display area may use a passive driving method. An organic light emitting display device which divides the at least two panels into a main panel and an auxiliary panel and changes driving modes of the divided panels is also disclosed.

Description

An organic light emitting display device having different driving method on main display area and sub display area}

BRIEF DESCRIPTION OF THE DRAWINGS In order to better understand the drawings cited in the detailed description of the invention, a brief description of each drawing is provided.

1 is a diagram illustrating an embodiment of an organic light emitting display device according to the present invention.

FIG. 2 is a basic pixel circuit diagram of an icon area provided in the auxiliary display area illustrated in FIG. 1.

3 is a circuit diagram illustrating a connection structure of icon regions constituting an auxiliary display region of an organic light emitting display according to the present invention.

4 is another circuit diagram illustrating a connection structure of icon regions constituting an auxiliary display region of the organic light emitting display according to the present invention.

5 illustrates another embodiment of an organic light emitting display device according to the present invention.

6 is a diagram illustrating a delta pixel arrangement.

7 is a diagram illustrating a pixel array in a stripe scheme.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting display device, and more particularly, to an organic light emitting display device having a different driving method of a main display area and an auxiliary display area.

In general, a panel provided in a communication terminal is a kind of service area provided by a manufacturer of a terminal to a user in order to effectively use a plurality of services embedded in the terminal and services provided by a base station. The user can not only accurately use the terminal through the panel, but also in the case of text message transmission and reception, the existence of the panel is absolute. In addition, the panel can receive and watch various videos, and also enables a search function of a photo shot.

In other words, the panel is absolutely helpful to perform the main function that allows the user of the terminal to select, implement and confirm a predetermined function through a menu displayed on the panel of the terminal.

However, certain areas of the panel must perform a unique function. That is, the auxiliary functions such as the current state of charge of the charger used in the terminal, the possibility of connection between the terminal and the base station, the use mode of the terminal and whether to set the alarm function perform a different function from the general main function of the terminal, such as voice or data transmission and reception. .

The auxiliary display area of the panel which performs the auxiliary function does not need to use the same graphic mode used by the main display area for displaying an image which is the main function of the panel. This is because, from the viewpoint of the manufacturer and the user, the unique function is more concerned with the cost of the product than the quality problem.

An object of the present invention is to provide an organic electroluminescent display device in which one panel is divided into a main display area and an auxiliary display area, and a driving method of the divided areas is different from each other.

Another object of the present invention is to provide an organic light emitting display device in which at least two panels are divided into a main panel and an auxiliary panel, and the driving methods of the divided panels are different from each other.

In accordance with one aspect of the present invention, an organic electroluminescent display device divides one panel into two display areas, and includes a main display area and a partial display area of the one panel. An auxiliary display area having a plurality of icon areas as a remaining display area of the panel is provided, and the main display area and the auxiliary display area have different driving methods.

The main display area is driven to control each of the pixels constituting the main display area, and the auxiliary display area emits all of the icons at the same time or emits light separately in response to at least one selection signal. When the light is emitted, a plurality of pixels for forming the icon are driven to emit light at the same time. In addition, the main display area and the sub display area may select an arrangement method of constituent pixels from a delta mode array or a stripe mode array.

The plurality of icon areas may include an icon area indicating a charge level of a charger, an icon area indicating whether connection with a base station is possible, an icon area indicating a usage mode (eg, vibration mode) of a wireless telephone, and a message reception. At least one icon area is included among the icon area indicating whether or not and the icon area indicating whether to set an alarm function, and further include icon areas indicating different performing functions in addition to the four types of icon areas. Can also be.

Each of the plurality of icon regions may include an icon having a shape corresponding to an execution function, wherein one end of a selection unit for switching a source output received from a data driver device in response to the selection signal is connected to a predetermined first power voltage; The driver may be configured to operate in response to an output signal of the selector, and to have a predetermined second power supply voltage connected to one end thereof and the other end connected to the icon.

According to another aspect of the present invention, an organic light emitting display device includes a main panel and an auxiliary panel contacting or separated from the main panel and having a plurality of icon areas. The main panel and the auxiliary panel are characterized in that the driving method is different.

The main panel is driven so that each of the pixels constituting the main panel is controlled, and the auxiliary panel causes the icons to emit all of the icons at the same time or separately, in response to at least one selection signal, and any icon emits light. When the plurality of pixels for forming the icon is driven to emit light at the same time. In addition, the main panel and the auxiliary panel may select an arrangement method of constituent pixels from a delta mode array or a stripe mode array.

The plurality of icon areas may include an icon area indicating a charge level of a charger, an icon area indicating whether a connection with a base station is possible, an icon area indicating a usage mode of a wireless telephone, and an icon indicating whether a voice or text message is received. At least one icon area is included among the icon areas indicating whether to set the area and the alarm function, and it is possible to add a new icon in addition to the above four icon areas.

Each of the plurality of icon areas may include a selector configured to switch a source output received from the data driver device in response to the selection signal, one end of which is connected to a predetermined first power supply voltage and has a shape corresponding to a performance function. And a driving unit operating in response to an output signal of the selection unit, and having a predetermined second power supply voltage connected to one end thereof and the other end connected to the icon.

DETAILED DESCRIPTION In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings that illustrate preferred embodiments of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a diagram illustrating an embodiment of an organic light emitting display device according to the present invention.

Referring to FIG. 1, it can be seen that one panel is divided into two regions, that is, the sub display region 110 and the main display region 120 positioned above the panel. It is equipped with a plurality of icons indicating the status of various functions. The plurality of icons may include an icon indicating a charge level of a charger, an icon indicating whether a connection with a base station is possible, an icon indicating a mode of use of a wireless telephone (eg, vibration mode), and whether a voice or text message is received. It has an icon to display and the icon to display the alarm function setting.

Since the main display area 120 generally has 176 * 220 * 3 (RGB) pixels and must process image data, it is preferable that their driving is in the graphics mode. However, unlike the main display area 120, the auxiliary display area 110 used to display the icons as described above does not need to be in the graphic mode.

In the present invention, power consumption can be reduced by using the driving method different from that of the main display area. Hereinafter, an active matrix driving method using a thin film transistor will be described. Although it will not be described to realize the present invention with a passive matrix (Passive Matrix) which is another way of driving the icon, it is a technique that can be naturally derived to those skilled in the art of the present invention.

FIG. 2 is a basic pixel circuit diagram of an icon area provided in the auxiliary display area 110 shown in FIG. 1.

Referring to FIG. 2, the circuit diagram of the icon area includes a selector 210, a driver 220, and an icon 230.

The selector 210 switches the source output Data received from the data driver device (not shown) in response to the selection signal Scan. In order to actually implement the selector 210, the thin film transistor M1 may be used. The thin film transistor M1 selectively transfers a source output Data connected to one end to the driver 220 connected to the other end in response to the selection signal Scan applied to the gate.

The driver 220 may operate in response to the output signal of the selector 210, and may be connected to a predetermined first power supply voltage VDD at one end thereof and to the other end of the icon 230. In order to actually implement the driver 22, the thin film transistor M2 and the capacitor C may be used. One end of the thin film transistor M2 is connected to the first power supply voltage VDD and the other end is connected to the icon 230, and the output of the selection unit 210 is applied to the gate. One end of the capacitor C is connected to the first power supply voltage VDD, and the other end thereof is connected to the output of the selector 220.

The first power supply voltage VDD and the second power supply voltage VSS have different voltage levels, and according to the type of the device, that is, the thin film transistor, used in the driver 220 and the selector 210, one power supply voltage. When the current source function is performed, it is preferable that the other power supply voltage performs the function of sinking the current. In the case of FIG. 2, the current is supplied from the first power supply voltage VDD and the current is absorbed from the second power supply voltage VSS. Although not shown in the drawings, the reverse is also natural.

The basic pixel provided in the main display area 120 shown in FIG. 1 generally has a structure including five MOS transistors and one capacitor.

3 is a circuit diagram illustrating a connection structure of icon regions constituting an auxiliary display region of an organic light emitting display according to the present invention.

Referring to FIG. 3, it can be seen that a plurality of icon regions 310 to 330 are simultaneously driven using one selection signal Scan [n]. In this case, the source outputs Data [m-1] to Data [m + 1] applied to the icon areas 310 to 330 should be different from each other.

4 is another circuit diagram illustrating a connection structure of icon regions constituting an auxiliary display region of the organic light emitting display according to the present invention.

Referring to FIG. 4, it can be seen that the plurality of icon regions 310 to 330 are driven using the plurality of selection signals Scan [n-1] to Scan [n + 1]. At this time, the source outputs Data [m-1] to Data [m + 1] are applied to the respective icon areas 310 to 330.

In FIG. 4, the icon regions 310-330 are shown to have different source outputs Data [m-1] to Data [m + 1], but may share the same source output in common. have.

In the above, one panel is divided into a main display area and an auxiliary display area, but two independent panels separated from each other may be used.

5 illustrates another embodiment of an organic light emitting display device according to the present invention.

Referring to FIG. 5, it can be seen that the organic light emitting display device according to the present invention can be implemented using two different independent panels. The auxiliary panel 510 and the main panel 520 may be closely attached to each other or may be separated by a considerable distance.

Specific embodiments of the auxiliary panel 510 illustrated in FIG. 5 may be easily expected from the description of the auxiliary display region 210 illustrated in FIG. 1, and thus description thereof will be omitted.

6 is a diagram illustrating a delta pixel arrangement.

7 is a diagram illustrating a pixel array in a stripe scheme.

R (Red), G (Green), and B (Black) shown in FIGS. 6 and 7 represent subpixels constituting the pixel.

In the above-described main display area (or main panel) and the sub display area (or sub-panel), the two pixel arrangements illustrated in FIGS. 6 and 7 may be selected and used. That is, the same arrangement method can be selected or used, respectively, or a different arrangement method can be used.

The above-mentioned main display area (or main panel) uses an active driving method when driving the organic electroluminescent element, and the auxiliary display area (or auxiliary panel) uses a passive driving method when driving the organic electroluminescent element. Can be implemented. The passive driving method used to drive icons installed in the auxiliary display area (or auxiliary panel) is simpler than the active driving method using one or more thin film transistors per organic EL (Electro-Luminescence) device. And less manufacturing costs.

The phenomenon in which a previous image pattern remains when a specific still image is driven for a long time and wants to display another image is called afterimage or image sticking. In the organic electroluminescent display, this phenomenon may occur when the icon-added graphic mode is used. In the light-emitting mode by the icon-added area, image sticking may be prevented.

In addition, since unnecessary parts are excluded from light emission, there is an advantage in terms of power consumption. In general, an integrated circuit is used as the driver device. If the output is sufficiently generated from the design of the integrated circuit, the icon may be added without any design change.

As described above, the optimum embodiment has been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of illustrating the present invention and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

As described above, the organic light emitting display device according to the present invention not only prevents an image sticking phenomenon. There are also significant advantages in terms of power consumption.

Claims (20)

In an organic light emitting display device in which one display panel is divided into at least two display areas, A main display area for displaying image data among the display areas of the display panel; And A remaining display area of the display panel includes an auxiliary display area having a plurality of icon areas, And a driving method for the pixels constituting the main display area and the sub display area. The method of claim 1, wherein the main display area, Each of the pixels constituting the main display area is driven to be controlled. The auxiliary display area, In response to at least one selection signal, all of the icons emit light at the same time or emit light separately, and when a certain icon emits light, a plurality of pixels for forming the icon are driven to emit light simultaneously. Device. The method of claim 1, wherein the plurality of icon areas, Icon area indicating the charging level of the charger, icon area indicating the possibility of connection with the base station, icon area indicating the usage mode of the cordless phone, icon area indicating whether the voice or text message is received, and whether to set the alarm function An organic electroluminescent display device comprising at least one icon region among icon regions to be displayed. The method of claim 3, wherein each of the plurality of icon areas, A selector for switching a source output received from a data driver device in response to the selection signal; An icon whose one end is connected to a predetermined first power supply voltage, the icon having a shape corresponding to a performance function; And And a driving part connected to an output signal of the selection part, one end of which is connected to a predetermined second power supply voltage, and the other end of which is connected to the icon. The method of claim 4, wherein the selection unit, And a thin film transistor having one end connected to the source output and the other end connected to the driving unit and to which the selection signal is applied to a gate. The method of claim 4, wherein the driving unit, A capacitor having one end connected to a second power supply voltage and the other end connected to an output of the selection unit; And And a thin film transistor having one end connected to the second power supply voltage and the other end connected to the icon, and a gate of which the output of the selector is applied to the gate. The method of claim 4, wherein the first power supply voltage and the second power supply voltage, Have different voltage levels, According to the type of device used in the driver and the selector, when one power supply voltage performs a function of supplying current, the other power supply voltage performs a function of sinking current. Organic electroluminescent display. The method of claim 4, wherein the at least one selection signal, When one selection signal is used, all of the plurality of icon areas are used to emit light at the same time, And when the plurality of selection signals are used, the plurality of icon regions are used to selectively emit light. The display device of claim 1, wherein the main display area and the sub display area are: An organic electroluminescent display device, wherein the arrangement of the constituent pixels is one of a stripe mode array and a delta mode array. The method of claim 1, The main display area uses an active driving method, The auxiliary display area is an organic light emitting display device using a manual driving method. Main panel; And An auxiliary panel contacting or separated from the main panel and having a plurality of icon areas; And a driving method for the pixels constituting the main panel and the auxiliary panel are different from each other. The method of claim 11, The main panel is driven so that each of the pixels constituting the main panel is controlled. The auxiliary panel causes the icons to all emit light at the same time or emit light separately in response to at least one selection signal, and when a certain icon emits light, a plurality of pixels for forming the icon are driven to emit light simultaneously. Organic electroluminescent display. The method of claim 11, wherein the plurality of icon areas, Icon area indicating the charging level of the charger, icon area indicating the possibility of connection with the base station, icon area indicating the usage mode of the cordless phone, icon area indicating whether the voice or text message is received, and whether to set the alarm function An organic electroluminescent display device comprising at least one icon region among icon regions to be displayed. The method of claim 12, wherein each of the plurality of icon areas, A selector for switching a source output received from a data driver device in response to the selection signal; An icon whose one end is connected to a predetermined first power supply voltage, the icon having a shape corresponding to a performance function; And And a driving part connected to an output signal of the selection part, one end of which is connected to a predetermined second power supply voltage, and the other end of which is connected to the icon. The method of claim 14, wherein the selection unit, And a thin film transistor having one end connected to the source output and the other end connected to the driving unit and to which the selection signal is applied to a gate. The method of claim 14, wherein the driving unit, A capacitor having one end connected to a second power supply voltage and the other end connected to an output of the selection unit; And And a thin film transistor having one end connected to the second power supply voltage and the other end connected to the icon, and a gate of which the output of the selector is applied to the gate. The method of claim 14, wherein the first power supply voltage and the second power supply voltage, Have different voltage levels, According to the type of devices used in the driver and the selector, when one power supply voltage performs a function of supplying current, the other power supply voltage performs a function of sinking current. Organic electroluminescent display. The method of claim 12, wherein the at least one selection signal, When one selection signal is used, the plurality of icon areas all emit light at the same time, And when the plurality of selection signals are used, selecting the plurality of icon regions to emit light. The method of claim 11, wherein the main panel and the auxiliary panel, An organic electroluminescent display device, wherein the arrangement of the constituent pixels is one of a stripe mode array and a delta mode array. The method of claim 11, The main panel uses an active driving method, And the auxiliary panel uses a manual driving method.

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