KR870001732A - Driving circuit device and computer display device for electroluminescent panel for multi-mode row display - Google Patents

Abstract

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Description

Drive and device for driving electroluminescent panel for multi-mode line display

1 is an explanatory diagram showing a part of an electroluminescent plate and an operating voltage that reveals one pixel of the light emitting plate by a known method;

4 is an explanatory diagram showing a state in which one pixel of the light emitting plate is applied with voltage in accordance with the present invention so that the brightness and contrast are in the reinforcing piece state.

5 is a view showing another embodiment in which the brightness and contrast of a light-emitting plate to which voltage is applied according to the present invention is enhanced.

* Explanation of symbols for main parts of the drawings

1-17: School R1-R3: Row driving circuit

C1-C3: column drive circuit 19-23: column electrode

25-29: row electrode 31-41: switch

43: central pixel 45: virtual line

51: computer display control device 53: interface circuit

55-61: column shift register 69: left row shift register

71: right row shift resist 73-79: latch circuit

81: voltage control device 85: delay circuit

87: divider (divider) 100: vertical sync pulse

101: vertical combination sync pulse 101a-101c: horizontal blanking signal

103: vertical blanking interval 106a-106c: interval

111,113: flip-flop 115,117,123,137: JK flip-flop

121,130: Counter 139,151,153: Optocoupler

Claims (12)

An apparatus for receiving text data rows in preselected display modes and displaying rows of corresponding character associations on an electroluminescent panel in preselected display modes, comprising: clock means for generating clock pulses, the start of each row of received text data Means for detecting the display mode of each row of character data, means for synchronizing the clock means with a phase determined by the display mode of the row at the start of each row of character data, and the clock means. And a circuit for displaying the character images of each character data row in response to the detected display mode for the row. Each window transmits a series of data screens each consisting of a plurality of rows of character data, each window comprising a horizontal blanking interval corresponding to each row of transmitted character data and a vertical blanking interval corresponding to each screen of transmitted character data. A computer display of a type for generating a window signal, a load signal corresponding to each transmitted character, and a horizontal synchronizing signal corresponding to each displayed character data row, comprising: an electroluminescent panel, generating clock pulses; Clock means, means for detecting the start of the display portion of each character data row, means for detecting the display mode of each character data row, synchronizing the clock means at the start of the display portion of each character data row and detecting for the row Means for adjusting the phase of the clock means in response to the displayed display mode and display portions of each row in response to the clock means A computer display device to the display mode, detection of the line is characterized by being a means for displaying on the electroluminescent plate characters. 3. The apparatus according to claim 2, wherein said means for detecting the start of a display portion of a character data row includes means for detecting the pharmacy end of the window signal and recognizing the beginning of the display portion upon detection of a next loud signal. Device. 3. The apparatus according to claim 2, wherein said means for detecting the display mode comprises means for undecomposing the 80 display mode from the 40 display mode or the graphic display mode. The display unit according to claim 2, wherein the means for detecting the display mode includes counting the number of loud signals generated while the horizontal synchronizing signal per row of one row of data is displayed, and displaying the display mode by one row according to the number of the loud signals. Said device comprising means for determining. 6. The apparatus as claimed in claim 5, wherein, when the number of loudness pulses is counted as eight, the display mode is 80. 6. The apparatus as claimed in claim 5, wherein the display mode is designated as 40 display mode and 40 graphic display mode when the number of loud pulses is counted to 7 or less. 3. The apparatus according to claim 2, wherein said means for detecting a display mode comprises means for detecting a frequency of the loud signal generated while a horizontal synchronizing signal is present and for determining the display mode according to the frequency. 10. The apparatus of claim 8, further comprising: means for identifying a display mode of 80 when a high frequency of the two preselected frequencies is detected, and a 40 display mode and 40 graphical display modes if a low frequency of the two preselected frequencies is detected. The device including. 3. The lifting means according to claim 2, wherein the lifting means synchronizes the clock means one row at the end of the horizontal synchronizing signal when a display mode of 40 or a graphics mode is detected, and at the end of the horizontal synchronizing signal when an 80-language mode is detected. And means for synchronizing the clock means one row after one pixel. 3. The synchronization means according to claim 2, wherein the synchronous means synchronizes the claw means until reaching the start of the display portion of the character data row when 40 display modes or graphic modes are detected, and displaying the character data row when the 80 column mode is detected. And means for shifting the phase of the clock means by 90 ° while synchronizing the clock means until reaching the beginning of the portion. It transmits consecutive data screens, each consisting of multiple rows of character data, and contains computer-closed signals, horizontal blanking intervals corresponding to each row of transmitted character data, and vertical blanks corresponding to each screen of transmitted character data. The exclusive logical sum of the window signal including the speech interval, the loud signal corresponding to each transmitted character, the horizontal synchronizing signal corresponding to each row of transmitted character data, and the vertical synchronizing signal corresponding to each screen of the transmitted character data A computer display of a type for generating combined synchronizing signals, comprising: an electroluminescent panel, means for receiving said computer clock signals to generate display clock signals having a lowered frequency, detecting the beginning of each transmitted character data row display portion; Means for generating horizontal synchronization pulses from said combination synchronization signals and applying said respective pulses; Means for synchronizing the display of one row of text data displayed on said electroluminescent display panel, generating a vertical display synchronizing signal immediately following each vertical blanking interval, and applying this signal to display the character data of surface one shown on said electroluminescent display panel; Means for synchronizing the clock means, synchronizing the clock means at the beginning of the display portion of the character data row and adjusting the phase of the clock means in response to the detected display mode of the row; Means for displaying characters of each row display portion on the electroluminescent display panel in the detected display mode for the row in response to the horizontal registration pulses. ※ Note: The disclosure is based on the initial application.