Display device and electronic device

• US 10,416,466 B2
• Filed: 06/20/2018
• Issued: 09/17/2019
• Est. Priority Date: 05/09/2012
• Status: Expired due to Fees

• Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Original Assignee: Semiconductor Energy Laboratory Co., Ltd.
• Inventors: Yamazaki, Shunpei, Hirataka, Yoshiharu
• Primary Examiner(s): Li, Grace Q
• Application Number:
  US16/012,855
• Publication Number:
  US 20180314073A1
• Time in Patent Office: 454 Days
• CPC Class Codes: G02B 30/00 Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images in microscopes G02B21/22
• CPC Class Codes: G02B 30/27 involving lenticular arrays
• CPC Class Codes: G09G 3/003 to produce spatial visual effects
• CPC Class Codes: G09G 3/3233 with pixel circuitry controlling the current through the light-emitting element
• CPC Class Codes: G09G 3/3291 in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
• CPC Class Codes: H04N 13/144 for flicker reduction
• CPC Class Codes: H04N 13/302 for viewing without the aid of special glasses, i.e. using autostereoscopic displays
• CPC Class Codes: H10K 50/852 comprising a resonant cavity structure, e.g. Bragg reflector pair
• CPC Class Codes: H10K 59/30 Devices specially adapted for multicolour light emission
• CPC Class Codes: H10K 59/38 comprising colour filters or colour changing media [CCM]
• CPC Class Codes: H10K 59/876 comprising a resonant cavity structure, e.g. Bragg reflector pair
• CPC Class Codes: H10K 59/878 comprising reflective means

Abstract

A display device has an NTSC ratio of higher than or equal to 80% and a contrast ratio of higher than or equal to 500 and includes a display portion. In the display portion, a pixel is provided at a resolution of greater than or equal to 80 ppi, and the pixel includes a light-emitting module capable of emitting light with a spectral line half-width of less than or equal to 60 nm. Further, the light emission of the light-emitting module is raised to a desired luminance with a gradient of greater than or equal to 0 in response to an input signal within a response time of longer than or equal to 1 μs and shorter than 1 ms.

Claims

1. A method of driving a semiconductor device, comprising:

generating a signal that corrects a response time of light emission of a light-emitting module and outputting the signal to a display portion, so that a response time of light emission of the light-emitting module is longer than or equal to 1 μ

s and shorter than 1 ms,

wherein the semiconductor device comprises the display portion in which pixels are provided at a resolution of greater than or equal to 80 ppi,

wherein the light-emitting module capable of emitting light with a spectral line half-width of less than or equal to 60 nm is in each pixel of the pixels,

wherein the semiconductor device has an NTSC ratio of higher than or equal to 80% and a contrast ratio of higher than or equal to 500.

2. A method of driving a semiconductor device, comprising:

generating a signal that corrects a response time of light emission of a light-emitting module and outputting the signal to a display portion, so that a response time of light emission of the light-emitting module is longer than or equal to 1 μ

s and shorter than 1 ms,

wherein the semiconductor device comprises the display portion in which pixels are provided at a resolution of greater than or equal to 80 ppi,

wherein the light-emitting module capable of emitting light with a spectral line half-width of less than or equal to 60 nm is in each pixel of the pixels,

wherein the semiconductor device has an NTSC ratio of higher than or equal to 80% and a contrast ratio of higher than or equal to 500,

wherein the signal comprises a first signal with a voltage which is lower than a voltage corresponding to a desired luminance and a second signal with a voltage corresponding to the desired luminance.