A trigger driving circuit and an organic light-emitting display device

A driving circuit, an organic technology, applied to static indicators, instruments, etc., can solve the problems of unstable current, low driving current, uneven picture, etc.
CN108172170BActive Publication Date: 2019-12-13NANJING BOE DISPLAY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING BOE DISPLAY TECH CO LTD
Publication Date
2019-12-13

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Abstract

The present invention discloses a triggering drive circuit. The triggering drive circuit comprises N-level triggering drive circuit units (N>=2, and N is an integer); an nth-level triggering drive circuit unit comprises a pull-up control module, a pull-up module, a signal control module and a pull-down module, wherein 1<=n<=N, and n is an integer; and the pull-up control module, the pull-up moduleand the pull-down module are connected with a pull-up control node, the signal control module and the pull-down module are connected with an output node, and the output node outputs triggering drivesignals. The present invention further discloses an organic luminescence display device. The organic luminescence display device employs the triggering drive circuit to control a time proportion of brightness and darkness of an organic light emitting diode to achieve a function of displaying different gray-scale frames in the same current drive so that it is avoided that a drive current is low andthe current is unstable to cause an uniform frame problem when a low gray scale frame is displayed.
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Description

technical field

[0001] The invention relates to the field of display technology, in particular to a trigger driving circuit and an organic light-emitting display device. Background technique

[0002] The organic light emitting display device utilizes the advantages of high contrast ratio, high color gamut, wide viewing angle, low power consumption, and thinner and thinner brought by organic light emitting diodes (OLEDs), which are favored by the market. The principle of OLED light emission is briefly as follows: under the action of an external electric field, the electrons and holes provided by the cathode and anode are combined in the light-emitting layer to form excitons, and the excitons return to the ground state to emit photons. Therefore, OLED is a current light-emitting device. The circuit in the board controls the magnitude of the current, and then controls the brightness of the light.

[0003] A prior art OLED driving circuit such as figure 1 As shown, the OLED dr...

Claims

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