A kind of organic light-emitting display and display device

Abstract

The invention discloses an organic light-emitting display and a display device, which are used to limit the current surge when starting up and solve the problem of leakage of display panels during the initializing stage. An organic light-emitting display includes a power drive chip and an organic light-emitting display panel. The power drive chip is provided with a soft-start circuit, and the soft-start circuit includes a first delay circuit, and first and second anti-surge circuits; the first delay circuit It is used to control the first anti-surge circuit not to work and control the second anti-surge circuit to work during the initialization phase; and to delay the voltage at the output terminal, and to control the first anti-surge circuit to work after the initialization phase The second anti-surge circuit does not work; the first anti-surge circuit is used to control the voltage value input to the first input terminal of the organic light-emitting display panel after the initialization phase; the second anti-surge circuit is used to control the input voltage during the initialization phase The voltage value to the first input terminal of the organic light emitting display panel.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an organic light emitting display and a display device. Background technique [0002] In a traditional liquid crystal display, the brightness of the display device is mainly adjusted by adjusting the brightness of the backlight to adjust the overall brightness. The pixel unit controls the liquid crystal unit. When the gate line (Gate) in the pixel area is not turned on, the liquid crystal display does not emit light, but the active matrix The organic light emitting diode (Active Matrix Organic Light Emitting Diode, AMOLED) display device controls the organic light emitting diode (Organic Light Emitting Diode, OLED) device to emit light in a voltage programming manner. [0003] like figure 1 As shown, when the AMOLED display device is turned on, the direct current to direct current (DC-DC) power driver chip 11 generates a momentary large current surge when the overall parasitic ...

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides an organic light-emitting display and a display device, which are used to limit the current surge when starting up, reduce the risk of poor display display; and solve the problem of leakage of the display panel during the initialization stage, and improve the DC-DC power supply drive. chip reliability

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