Display drive method for passive OLED mobile terminal capable of being used as surface light source

A mobile terminal and display driving technology, applied in the fields of electronics and communications, can solve the problems of low luminous brightness, shortened service life of display screens and related devices, and increased brightness of passive OLED displays, and achieves the effect of solving a single display mode

Inactive Publication Date: 2006-11-22
TSINGHUA UNIV +1
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AI Technical Summary

Problems solved by technology

[0002] Existing passive OLED drive controllers all have a certain scan duty cycle for rows and drive control for column output. If the duty cycle is 1 / n, the displayed brightness is close to 1 / n of the peak brightness of a single point, and at At a certain moment, only one or two rows can have output, and all rows cannot be turned on and output at the same time. Therefore, this driving control method is only suitable for mobile terminals to display dynamic images and meet normal display functions, but it is impossible to turn on the screen body. The brightness display is too high, and the mobile terminal display cannot be used as a surface light source with high brightness
If the brightness of the existing passive OLED display is increased only by increasing the driving voltage or current, it will not only shorten the service life of the display and related devices, but the luminous brightness is not high, and the single luminous mode makes the mobile terminal display The screen emits the same brightness of light in all situations, causing unnecessary power consumption, so it is not feasible

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  • Display drive method for passive OLED mobile terminal capable of being used as surface light source
  • Display drive method for passive OLED mobile terminal capable of being used as surface light source
  • Display drive method for passive OLED mobile terminal capable of being used as surface light source

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, the present invention is described in further detail.

[0022] Such as figure 1 Shown is a structural diagram of each unit module of the passive OLED mobile terminal with lighting function in the present invention, including an external interface 1, an instruction control unit 2, a chromaticity adjustment unit 3, a data storage unit 4, a row timing control unit 5, and a column timing control unit. Unit 6, row drive unit 7, column drive unit 8 and power supply unit 9. figure 2 It is a flow chart of the driving display method of the present invention. Depend on figure 1 and figure 2 It can be seen that the instruction control unit 2 and the data storage unit 4 respectively receive control instructions and display data through the external interface 1, and perform mode judgment and identification according to the input control instructions, and judge whether to perform a normal display mode or a display mode as a surface...

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Abstract

The related display drive method for a passive OLLED mobile terminal comprises: the command control unit and data storage unit receives command and display data by peripheral interface respectively; it decides and recognizes the normal display mode or area light source mode; for different modes, the time schedule control unit in drive chip shows opposite scanning display; wherein, when for area source mode, the chip can gate all lines or partial lines for display.

Description

technical field [0001] The invention relates to the technical fields of electronics and communication, in particular to a display driving method for a passive OLED mobile terminal that can be used as a surface light source. Background technique [0002] Existing passive OLED drive controllers all have a certain scan duty cycle for rows and drive control for column output. If the duty cycle is 1 / n, the displayed brightness is close to 1 / n of the peak brightness of a single point, and at At a certain moment, only one or two rows can have output, and all rows cannot be turned on and output at the same time. Therefore, this driving control method is only suitable for mobile terminals to display dynamic images and meet normal display functions, but it is impossible to turn on the screen body. The brightness is too high, and the display screen of the mobile terminal cannot be used as a surface light source with high brightness. If the brightness of the existing passive OLED displ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/30G09G3/3208H05B33/14H05B44/00
CPCY02B20/30
Inventor 邱勇孙铁朋高裕弟张德强
Owner TSINGHUA UNIV
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