KR100363412B1 - Device and method for converting color polarity of display unit - Google Patents

Abstract

The device for converting the screen colors detects the memory storing the color display data and the state of the device, and generates a first control signal for maintaining a specific logic in a normal state, and inverts the logic in an alarm display state. And a first switch and a second switch, wherein the first switch is turned on when the first control signal is generated, and outputs the output of the memory as normal display data, and the memory when the second control signal is generated. And a display controller for inverting the output of the display data and outputting the complementary display data.

Description

Color polarity converter and method of display device {DEVICE AND METHOD FOR CONVERTING COLOR POLARITY OF DISPLAY UNIT}

The present invention relates to a color converting apparatus and a method of a display device, and more particularly, to an apparatus and a method capable of converting polarities of colors of a screen.

In general, home appliances, communication devices, and the like have a display unit, and these devices display operation states of the device on the display unit. The display unit generally uses an LCD (Liquid Cristal Display), and the method of displaying on the display unit is displayed in letters or numbers on a background of a specific color. At this time, in order to promptly notify the user of the change of the state of the device, a method of changing the color of the displayed information is used. That is, it is preferable to change the color of the information displayed on the display unit to a complementary color so that the user can easily sense it visually. For example, when an abnormal state occurs while a home appliance or a communication device is operating, a method of periodically driving a buzzer while blinking an LED attached to the device is used to indicate a corresponding abnormal state. In this case, by changing the color of the information displayed on the display unit of the corresponding device to the complementary color or using a method of turning on / off the original color and the complementary color, it is possible to visually display more effectively. In addition, when the alarm function is set to operate the home appliance or the communication device at a predetermined time, the color of the information displayed on the display unit at a set time may be more effectively alerted.

In order to use the above interpolation display method, the interpolation data of the color currently displayed on the display driver of home appliances and communication devices has to be recorded again. Therefore, in the conventional display method, if a display state of the display unit is to be changed, a program for changing the display state to a complementary color must be separately provided, which causes a problem in that the display method is complicated.

Accordingly, an object of the present invention is to provide an apparatus and method for easily switching a color of a screen displayed in a device having a display device to a state using a normal state and interpolation colors.

In order to achieve the above object, an apparatus for converting a screen color of a device having a display unit according to an embodiment of the present invention includes a memory for storing color display data, a state for detecting a state of the device, and maintaining a specific logic in a normal state. And a first switch and a second switch to generate a first control signal and to generate a second control signal in which the logic is inverted when the alarm is displayed. The first switch is turned on when the first control signal is generated. And a screen controller for outputting the output of the memory as normal display data, inverting the output of the memory and outputting the complementary display data when the second control signal is generated, and the display unit for displaying the display data. do.

And a memory for storing color display data, a first switch turned on by a first control signal, and a second switch turned on by a second control signal signal, the output of the memory being determined by the corresponding control signal, respectively. A screen controller for outputting a phase and an inverted phase, and a screen color converting method of a device having a display unit may include monitoring a state of the device and a first control signal for maintaining a specific logic when the monitoring state is normal. Generating and turning on the first switch to apply the output of the memory to the display unit in a normal phase to display a screen having a normal color; and having a different logic when an alarm is displayed in the monitoring process. Periodically switching and outputting a first control signal and a second control signal, and applying the output of the memory to the display unit in an inverted phase. It characterized by constituted by any process of displaying the screen on the complementary color.

The screen color converting apparatus of the portable terminal includes a memory for storing color display data, a keypad for generating key data for setting the screen color converting function and a call function, a communication unit for performing a wireless communication function, and the keypad. Sets the screen color conversion function required by the controller, detects an operation state of the terminal through the communication unit, generates a first control signal for maintaining a specific logic in a normal state, and inverts the logic in an alarm display state. And a first switch and a second switch, wherein the first switch is turned on when the first control signal is generated, and outputs the output of the memory as normal display data. A screen controller for inverting the output of the memory and outputting the complementary color display data when a control signal is generated; and displaying the display data. Characterized in that the display portion.

1 is a diagram illustrating a configuration of a color conversion device of a display device according to an embodiment of the present invention.

An embodiment of the present invention is to enable the user to easily detect the color of the screen displayed on the display unit in the home appliance and communication device having a display unit so that the user can easily detect the current state of the screen output when the screen is displayed. Toggle output using and interpolation colors.

Hereinafter, the present invention will be described in detail with reference to the drawings. In the following embodiment of the present invention, for convenience of description, it will be described on the assumption that the device is a portable terminal. When the color conversion function according to an embodiment of the present invention is applied to the portable terminal, the battery may be used to alert the state of charge of the battery, to receive a message, to leave a communication area, or to alert a set time.

1 is a diagram showing the configuration of a screen color converting apparatus according to an embodiment of the present invention.

Referring to FIG. 2, a video memory (YUV RAM) 114 is a memory (Display Buffer) used for Video On Demand (VOD) or MSM. OSD Memory (On Screen Display RAM) 113 is a memory (Display Buffer) used exclusively for MSM. The video memory 114 and the OSD memory 113 are backgrounds of displayed screens, displayed information, and color data thereof. The mixer 115 mixes and outputs data output from the video memory 114 and the OSD memory 113. The microcomputer 111 controls the operation of the entire device and performs a function of generating a color conversion control signal when detecting a state in which color conversion of the screen should be performed according to an embodiment of the present invention. The color conversion control signal may be maintained as a signal to be toggled at regular intervals or a signal for determining complementary colors.

The register 112 temporarily stores the color conversion control signal output from the microcomputer 111. The first buffer 116 is a tristate buffer and outputs the signal output from the mixer 115 in the positive phase. The second buffer 117 also inverts the signal output from the mixer 115 as a tri-state buffer and outputs the inverted signal. The first buffer 116 and the second buffer 117 are switched on / off by a control signal for color conversion output from the register 112 to control the output of the mixer 115. Accordingly, the first buffer 116 and the second buffer 117 perform a function as a switching element in which color conversion is switched on / off by a control signal. The register 112, the first buffer 116, and the second buffer 117 are screen controllers. When the color conversion control signal has the first logic, the first buffer 116 is turned on and the second buffer 117 is turned off to output the mixer 115. When the color conversion control signal has a second logic, the second buffer 117 is turned on and the first buffer 116 is turned off to invert and output the signal output from the mixer 115. At this time, if the color conversion control signal is a toggle signal, the color conversion controller alternately outputs the signal output from the mixer 115 in a positive phase and an inverted phase, and thus the color of the screen is toggled between a normal state and a complementary color. The display unit 118 displays the output of the mixer 115 output from the buffers 116 and 117.

Referring to FIG. 1, the microcomputer 111 generates a control signal having a first logic for displaying the display unit 118 in a normal color in a normal state. Here, the first logic is assumed to be "0 (first control signal)" and the second logic is assumed to be "1 (second control signal)". Accordingly, when the microcomputer 111 generates a control signal of logic "0", the register 112 latches it and applies it to the control terminals of the first buffer 116 and the second buffer 117. The output of the current video memory 114 and the OSD memory 113 is composed of 24 bits as RGB signals, and the screen display data output from the memories 114 and 113 are mixed and output by the mixer 115. In this case, since the first buffer 116 is turned on and the second buffer 117 is turned off, the display information output from the mixer 115 is applied to the display unit 118 in the positive phase. Therefore, the display unit 118 displays a screen of normal color.

In this state, the microcomputer 111 monitors the overall state of the device. At this time, when the screen color conversion state of the display unit 118 is detected, the microcomputer 111 converts the logic of the control signal to "1". The register 112 then latches it and applies it to the control terminals of the first buffer 116 and the second buffer 117. As a result, since the first buffer 116 is turned off and the second buffer 117 is turned on, the display information output from the mixer 115 is inverted to the second buffer 117 and outputted in complementary color. Thus, the display unit 118 displays a complementary color screen. Display. At this time, if the color conversion control signal of the screen output from the microcomputer 111 is a toggle signal of repeating "1" and "0", the first buffer 116 and the second buffer 117 is switched on / off as described above, so that the display unit The screen displayed at 118 is toggled between the normal color and the complementary color screen.

In this case, when the device is a portable terminal, the keypad 110 includes a function key for setting various functions of the portable terminal and keys for inputting text information for performing a call, and the microcomputer 111 is used for key data received by the keypad 110. Therefore, the function is set or call function is performed. In addition, the microcomputer 111 controls the communication function by controlling the communication unit 120, and also monitors the operation of the communication unit 120 to monitor the state and generates the color conversion control signal according to the set display method. In the case of the portable terminal, the screen color conversion function as described above may be applied to the low charge state alarm of the battery, the reception of a message, the alarm time setting of the user, and the like.

As described above, the screen display method of the device according to the embodiment of the present invention can increase the visual effect of easily detecting the occurrence of the corresponding state by converting the color of the display unit to the complementary color when a state such as an alarm occurs. In addition, there is an advantage that can quickly convey the corresponding state to the user.

Claims (4)

In the screen color conversion apparatus of the device having a display unit, Memory to store color display data, A microcomputer that senses a state of the device, generates a first control signal for maintaining a specific logic when the device is in a normal state, and generates a second control signal for inverting the logic when an alarm is displayed; And a first switch and a second switch, wherein the first switch is turned on when the first control signal is generated, and outputs the output of the memory as normal display data, and inverts the output of the memory when the second control signal is generated. A screen controller that outputs display data, And a display unit for displaying the display data. The screen color converting apparatus of claim 1, wherein the microcomputer repeatedly toggles the first control signal and the second control signal in an alarm display state. And a memory for storing color display data, a first switch turned on by a first control signal, and a second switch turned on by a second control signal, and outputting the memory to the memory according to the corresponding control signal. And a screen controller for outputting an inverted phase and a screen color converting method of a device having a display unit, Monitoring the status of the device, By generating a first control signal to maintain a specific logic in the normal state during the monitoring process, by turning on the first switch, the output of the memory is applied to the display unit in a normal phase to display a screen having a normal color. Process, Periodically switching and outputting the first control signal and the second control signal having different logic when the alarm is displayed in the monitoring process, and applying the output of the memory to the display unit in an inverted phase to display a screen in complementary colors; Color conversion method characterized by consisting of a process. In the screen color converter of the portable terminal, Memory to store color display data, A keypad that generates key data for setting the screen color conversion function and calling function, A communication unit performing a wireless communication function, Sets a screen color conversion function requested by the keypad, detects an operating state of the terminal through the communication unit, generates a first control signal for maintaining a specific logic when in a normal state, and generates the logic when in an alarm display state. A microcomputer for generating a second control signal in which is inverted; And a first switch and a second switch, wherein the first switch is turned on when the first control signal is generated, and outputs the output of the memory as normal display data, and inverts the output of the memory when the second control signal is generated. A screen controller that outputs display data, And a display unit for displaying the display data.