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KR-20260065078-A - DISPLAY DEVICE AND METHOD OF DRIVING THE SAME, ELECTRONIC DEVICE

KR20260065078AKR 20260065078 AKR20260065078 AKR 20260065078AKR-20260065078-A

Abstract

A display device according to embodiments of the present invention comprises a battery; a voltage generating unit that generates a first driving power in response to an input power supplied from the battery; and pixels connected to scan lines and data lines; wherein the pixels comprise a first pixel that emits light of a first color in response to the first driving power; and a second pixel that emits light of a second color in response to a second driving power supplied from the battery.

Inventors

  • 홍준기
  • 박민
  • 이재훈

Assignees

  • 삼성디스플레이 주식회사

Dates

Publication Date
20260508
Application Date
20241031

Claims (20)

  1. Battery and; A voltage generating unit that generates a first driving power in response to the input power supplied from the battery; It has pixels connected to scan lines and data lines; The above pixels A first pixel that emits light of a first color in response to the first driving power source; A display device having a second pixel that emits light of a second color in response to a second driving power supplied from the battery.
  2. In Article 1, A display device characterized in that the second driving power source is the same power source as the input power source.
  3. In Article 1, The above second driving power supply is a display device having a lower voltage compared to the above first driving power supply.
  4. In Paragraph 3, A display device characterized in that the first color is blue and the second color is red.
  5. In Paragraph 4, The above pixels further comprise a third pixel that emits light of a third color in response to the second driving power source; A display device characterized in that the third color is green.
  6. In Article 1, A scanning driving unit for driving the above scanning lines; A data driving unit for driving the above data lines; A display device further comprising a timing control unit for controlling the above-mentioned injection driving unit and the above-mentioned data driving unit.
  7. In Article 6, Each of the above pixels is A light-emitting element that emits the first or second color; A display device having a driving transistor for supplying a driving current to the light-emitting element from a first driving power source or a second driving power source.
  8. In Article 7, The above driving transistor is a P-type transistor in the display device.
  9. In Article 8, The above timing control unit A correction value generating unit for receiving the second driving power supply and generating a correction value corresponding to the voltage of the second driving power supply; A display device having an output data generation unit for generating corrected output data by reflecting the above correction value in input data.
  10. In Article 9, The above corrected output data is a display device corresponding to the second pixel.
  11. In Article 8, A reference voltage generating unit that receives the above-mentioned second driving power and generates a first gamma reference voltage and a second gamma reference voltage; The apparatus further comprises a gamma voltage generating unit for generating first gamma voltages corresponding to the first pixel and second gamma voltages corresponding to the second pixel in correspondence with the first gamma reference voltage and the second gamma reference voltage; The above second gamma reference voltage is a display device in which the voltage is controlled in correspondence with the voltage of the above second driving power source.
  12. In Article 11, The above gamma voltage generating unit A first gamma voltage generating unit for generating the first gamma voltages in correspondence with the first gamma reference voltage; A display device having a second gamma voltage generating unit for generating the second gamma voltages in correspondence with the second gamma reference voltage.
  13. A step in which first pixels emitting light of a first color in response to a driving current supplied from a first driving power source; It includes a step in which second pixels emitting light of a second color in response to a driving current supplied from a second driving power source; A driving method for a display device in which the first color is blue, the second color is red, and the second driving power source has a lower voltage compared to the first driving power source.
  14. In Article 13, A step of generating the first driving power by boosting the input voltage supplied from the battery; A driving method for a display device further comprising the step of supplying the first driving power to the first pixels.
  15. In Article 14, The above first driving power is a driving method of a display device supplied from the battery to the second pixels.
  16. In Article 15, A driving method for a display device characterized in that the first driving power source is the input voltage.
  17. In Article 13, A step of generating a correction value corresponding to the voltage of the second driving power source; A driving method for a display device further comprising the step of generating output data by reflecting the above correction value in the input data to be supplied to the second pixels.
  18. In Article 17, A driving method for a display device in which the above correction value is set so that light of luminance corresponding to the gradation is generated in the second pixels in correspondence with the voltage of the second driving power supply.
  19. In Article 13, A step of controlling gamma voltages in response to the second driving power source; A driving method for a display device further comprising the step of generating a data signal to be supplied to the second pixels using the above gamma voltages.
  20. main processor and; A controller for receiving a video signal from the main processor, converting the data format of the video signal, and outputting video data; Memory where data processed by the main processor is stored; Battery and; A voltage generating unit that generates a first driving power in response to the input power supplied from the battery; A display panel having pixels connected to scan lines and data lines; The above pixels A first pixel that emits light of a first color in response to the first driving power source; An electronic device having a second pixel that emits light of a second color in response to a second driving power supply supplied from the above battery and having a lower voltage compared to the first driving power supply.

Description

Display device and method of driving the same, and electronic device The present invention relates to a display device and a driving method thereof, and an electronic device. The display device may include a display panel for displaying an image. The display panel includes pixels, and a light-emitting element included in each pixel may emit light with a brightness corresponding to a driving current amount. Pixels may include light-emitting elements that emit light of different colors, and each light-emitting element may have a different threshold voltage set in accordance with the forming material. Therefore, a method to reduce power consumption by considering the threshold voltages of the light-emitting elements is required. FIG. 1 is a drawing showing a display device according to one embodiment of the present invention. FIG. 2 is a drawing showing a pixel according to one embodiment of the present invention. FIG. 3 is a drawing showing a pixel according to an embodiment of the present invention. FIG. 4 is a drawing showing a display device according to one embodiment of the present invention. FIG. 5 is a drawing showing an embodiment of the timing control unit illustrated in FIG. 4. FIG. 6 is a drawing showing a gamma generating unit according to one embodiment of the present invention. FIG. 7 is a drawing showing an electronic device according to one embodiment of the present invention. FIGS. 8 to 11 are exemplary drawings illustrating electronic devices according to various embodiments. Hereinafter, various embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. The present invention may be embodied in various different forms and is not limited to the embodiments described herein. To clearly explain the present invention, parts unrelated to the explanation have been omitted, and the same reference numerals are assigned to identical or similar components throughout the specification. Accordingly, the reference numerals described above may also be used in other drawings. Furthermore, the expression "identical" in the explanation may mean "substantially identical." In other words, it may be an identicality to the extent that a person with ordinary knowledge would accept it as such. Other expressions may also be those in which "substantially" has been omitted. Some embodiments are described in the accompanying drawings in relation to functional blocks, units, and/or modules. Those skilled in the art will understand that these blocks, units, and/or modules are physically implemented by logic circuits, individual components, microprocessors, hardwired circuits, memory elements, wiring connections, and other electronic circuits. These may be formed using semiconductor-based manufacturing techniques or other manufacturing techniques. In the case of blocks, units, and/or modules implemented by microprocessors or other similar hardware, they may be programmed and controlled using software to perform the various functions discussed in the present invention, and may optionally be driven by firmware and/or software. Additionally, each block, unit, and/or module may be implemented by dedicated hardware, or by a combination of dedicated hardware performing some functions and a processor performing other functions (e.g., one or more programmed microprocessors and associated circuits). Furthermore, in some embodiments, blocks, units, and/or modules may be physically separated into two or more individual blocks, units, and/or modules that interact within the scope of the concept of the present invention without departing from the scope of the present invention. Additionally, in some embodiments, blocks, units, and/or modules may be combined into physically more complex blocks, units, and/or modules within the scope of the concept of the present invention. The term “connection” between two components may mean that it encompasses both electrical and physical connections, but is not necessarily limited thereto. For example, “connection” used in relation to circuit diagrams may mean electrical connections, while “connection” used in relation to cross-sectional and plan views may mean physical connections. Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may also be the second component within the technical scope of the present invention. Meanwhile, the present invention is not limited to the embodiments disclosed below and may be implemented with various modifications. Additionally, each embodiment disclosed below may be implemented alone or combined with at least one other embodiment to be implemented in a complex manner. FIG. 1 is a drawing