Oled pixel circuit and display device thereof
AssigneeBoe Technology Group Co., Ltd.
InventorChen SONG
Life of this patent
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Abstract
An OLED pixel circuit and a display apparatus comprising the OLED pixel circuit. An OLED pixel circuit comprises an OLED and driving units (TFT1, S1, C) for driving the OLED to emit light, wherein one electrode of the OLED is connected to the driving units (TFT1, S1, C). The OLED pixel circuit further comprises compensation units (R1, S2, TFT2, R2). The compensation units (R1, S2, TFT2, R2) comprises a sensing element (R1) which can sense light and convert an optical signal of the OLED into an electrical signal. The compensation units (R1, S2, TFT2, R2) compensate for currents used by the driving units (TFT1, S1, C) to drive the OLED according to the light-emitting brightness of the OLED.
Claims20
An OLED pixel circuit, comprising
- an OLED and
- a driving unit for driving the OLED to emit light, wherein one electrode of the OLED is coupled to the driving unit, and
- a compensation unit, comprising a sensor, wherein the sensor is configured to sense light and convert an optical signal of the OLED into an electrical signal, wherein the compensation unit is configured to compensate a current of the driving unit for driving the OLED according to a light-emitting brightness of the OLED.
A display device, comprising an OLED pixel circuit, wherein the OLED pixel circuit comprises
- an OLED,
- a driving unit for driving the OLED to emit light, wherein one electrode of the OLED is coupled to the driving unit, and
- a compensation unit, comprising a sensor, wherein the sensor is configured to sense light and convert an optical signal of the OLED into an electrical signal, wherein the compensation unit is configured to compensate a current of the driving unit for driving the OLED according to a light-emitting brightness of the OLED.
Dependencies are inferred from the claim text.