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Active type low-power-consumption display system of organic light emitting diode

A light-emitting diode and display system technology, which is applied to static indicators, instruments, etc., can solve the problems of not being able to effectively reduce the power consumption of the display system, and reduce power consumption, so as to save power consumption, reduce power consumption, and improve power consumption. The effect of consumption optimization

Inactive Publication Date: 2012-05-09
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current active silicon-based organic light-emitting diode display system has a defect in that it only relies on the low power consumption characteristics of the organic light-emitting diode itself to reduce the power consumption of the entire display system, without considering the system structure and pixel unit drive circuit structure, etc. In order to reduce power consumption, this cannot effectively reduce the power consumption of the display system

Method used

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  • Active type low-power-consumption display system of organic light emitting diode
  • Active type low-power-consumption display system of organic light emitting diode
  • Active type low-power-consumption display system of organic light emitting diode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 and figure 2 As shown, the organic light emitting diode screen 105 is composed of four organic light emitting diode sub-screens, the first sub-screen 101, the second sub-screen 102, the third sub-screen 103 and the fourth sub-screen 104. The sub-screen is composed of pixel unit drive circuits 204 arranged in a matrix array. The organic light emitting diode pixel unit drive circuit 204 is formed by connecting two parts, a low power consumption static storage circuit 306 and a voltage drive circuit 307 . The OLED screen 105 is connected to a power consumption control module 201 , a row driving circuit 203 , and a column driving circuit 202 .

[0047] Such as Figure 5 As shown, a layer of OLED pixels is formed on the OLED screen 105 to form a silicon-based OLED screen. The OLED pixel includes three colors: red, green, and blue; the red, green, and blue pixels are arranged according to the pixel arrangement rule of a general display.

[0048] Such as...

Embodiment 2

[0055] see figure 1 , which is characterized in that compared with the traditional light-emitting display array, a power consumption control module 201 and related low-power device units are added, and the main functional modules of the display system such as four organic light-emitting diode screens, row driving circuit 203 and column driving circuit 202 The power supply is controlled by the power consumption control module 201; the circuit includes:

[0056] (1) Each organic light-emitting diode sub-screen includes two parts, a low-power static storage circuit 306 and a voltage drive circuit 307. The low-power static storage circuit 306 is used to store the voltage from the row drive circuit 203 and the column drive circuit 202. Show signal. The voltage driving circuit 307 is driven by the anode power supply VDD_OLED_SD 407 and the cathode power supply VCATHODE 409 to emit light;

[0057] (2) The row driving circuit 203 and the column driving circuit 202 are used to genera...

Embodiment 3

[0062] This embodiment is basically the same as Embodiment 2, and the special features are as follows:

[0063] Such as figure 1 The pixel unit array shown is evenly divided into four rectangular areas according to the area, and the resolution of each area is 480×200 according to the definition of the screen resolution. The four areas and the power supply network are divided into four independent groups. Each group has Two pairs of working power supplies, namely static memory positive power supply VDD_SR_SD 406 and ground GND 410, and OLED pixel positive power supply VDD_OLED_SD 407 and negative power supply VCATHODE 409, wherein VDD_SR_SD 406 and VDD_OLED_SD 407 are supplied by external general power supply VDD_SR and VDD_OLED via MTCMOS provided to enable shutdown operation.

[0064] In each group, VDD_SR_SD 406 is controlled by two Power_Switch_A 401, VDD_OLED_SD 407 is controlled by Power_Switch_B 402, Power_Switch_A 401 and Power_Switch_B 402 share the same Sleep_A 421 s...

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Abstract

The invention relates to an active type low-power-consumption display system of an organic light emitting diode. The low-power-consumption display system comprises a plurality of home-made CMOS (complementary metal oxide semiconductor) integrated circuit modules, such as a power consumption control module, an organic light emitting diode pixel array driving module, a line driving module and a column driving module, wherein the power consumption control module is used for managing the power consumption of the line driving module and the column driving module and the consumption of a plurality of organic light emitting diode pixel subarray driving circuits, two optional low-power-consumption display modes are provided so as to reduce the power consumption of the whole display system. The power consumption of an organic light emitting diode pixel element driving circuit which is of a low-power-consumption structure is half of the power consumption of a common driving circuit. The low-power-consumption display system is mainly applied to small-sized screens and mini screens.

Description

technical field [0001] The invention relates to a low power consumption display system of an active silicon-based organic light emitting diode. Background technique [0002] Silicon-based organic light-emitting diode (OLED-on-Silicon, Organic Light Emitting Diode on Silicon) technology refers to a display device production technology that combines the diode with a single-crystal silicon integrated circuit. Organic light-emitting diodes have the advantages of low power consumption, self-illumination, wide viewing angle, low cost, good temperature adaptability, and fast response, and are emerging high-end display technologies in the world today. Organic light-emitting diodes are produced on single-crystal silicon integrated circuits, which is convenient for mass production and low in cost. The active type (AM, Active Matrix) is a driving method that can independently control each pixel without affecting other pixels. Active silicon-based organic light-emitting diode display ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/3208
Inventor 冉峰薛盛凯唐雨辰蔡虓
Owner SHANGHAI UNIV
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