摘要:
The invention relates to electro-optic displays and methods for driving such displays. The invention provides (i) electrochromic displays with solid charge transport layers; (ii) apparatus and methods for improving the contrast and reducing the cost of electrochromic displays; (iii) apparatus and methods for sealing electrochromic displays from the outside environment and preventing ingress of contaminants into such a display; and (iv) methods for adjusting the driving of electro-optic displays to allow for environmental and operating parameters.
摘要:
A non-linear element is formed on a flexible substrate by securing the substrate to a rigid carrier, forming the non-linear element, and then separating the flexible substrate from the carrier. The process allows flexible substrates to be processed in a conventional fab intended to process rigid substrates. In a second method, a transistor is formed on a insulating substrate by forming gate electrodes, depositing a dielectric layer, a semiconductor layer and a conductive layer, patterning the conductive layer to form source, drain and pixel electrodes, covering the channel region of the resultant transistor with an etch-resistant material and etching using the etch-resistant material and the conductive layer as a mask, the etching extending substantially through the semiconductor layer between adjacent transistors. The invention also provides a process for forming a diode on a substrate by depositing on the substrate a first conductive layer, and a second patterned conductive layer and a patterned dielectric layer over parts of the first conductive layer, and etching the first conductive layer using the second conductive layer and dielectric layer as an etch mask. Finally, the invention provides a process for driving an impulse-sensitive electro-optic display.
摘要:
A multi-layer film, useful as a front sub-assembly in electro-optic displays, comprises, in this order: a light-transmissive electrically-conductive layer (114); a light-transmissive first protective layer (112); a light-transmissive moisture barrier layer (108); and a light-transmissive second protective layer (106). This multi-layer film can be used in forming an electro-optic display by the processes described in U.S. Pat. No. 6,982,179 or Patent Publication No. 2007/0109219.
摘要:
A multi-layer film, useful as a front sub-assembly in electro-optic displays, comprises, in this order: a light-transmissive electrically-conductive layer (114); a light-transmissive first protective layer (112); a light-transmissive moisture barrier layer (108); and a light-transmissive second protective layer (106). This multi-layer film can be used in forming an electro-optic display by the processes described in U.S. Pat. No. 6,982,179 or Patent Publication No. 2007/0109219.
摘要:
Various types of edge seals for protecting electro-optic displays against environmental contaminants are described. In one type of seal, the electro-optic layer is sandwiched between a backplane and a protective sheet and a sealing material extends between the backplane and the protective sheet. In other seals, the protective sheet is secured to the backplane or to a second protective sheet adjacent the backplane. The electro-optic layer can also be sealed between two layers of adhesive or between one layer of adhesive and the backplane. Other seals make use of flexible tapes extending around the periphery of the display.
摘要:
Various types of edge seals for protecting electro-optic displays against environmental contaminants are described. In one type of seal, the electro-optic layer is sandwiched between a backplane and a protective sheet and a sealing material extends between the backplane and the protective sheet. In other seals, the protective sheet is secured to the backplane or to a second protective sheet adjacent the backplane. The electro-optic layer can also be sealed between two layers of adhesive or between one layer of adhesive and the backplane. Other seals make use of flexible tapes extending around the periphery of the display.
摘要:
A non-linear element is formed on a flexible substrate by securing the substrate to a rigid carrier, forming the non-linear element, and then separating the flexible substrate from the carrier. The process allows flexible substrates to be processed in a conventional fab intended to process rigid substrates. In a second method, a transistor is formed on a insulating substrate by forming gate electrodes, depositing a dielectric layer, a semiconductor layer and a conductive layer, patterning the conductive layer to form source, drain and pixel electrodes, covering the channel region of the resultant transistor with an etch-resistant material and etching using the etch-resistant material and the conductive layer as a mask, the etching extending substantially through the semiconductor layer between adjacent transistors. The invention also provides a process for forming a diode on a substrate by depositing on the substrate a first conductive layer, and a second patterned conductive layer and a patterned dielectric layer over parts of the first conductive layer, and etching the first conductive layer using the second conductive layer and dielectric layer as an etch mask. Finally, the invention provides a process for driving an impulse-sensitive electro-optic display.
摘要:
Various improvements are provided in gas-based electrophoretic displays, including (a) the use of water getters to remove water from the gas; (b) the use of electron accepting or donating gases; (c) the use of electrophoretic polymer particles having high glass transition temperatures; (d) lateral movement of electrophoretic particles within the display; and (e) the use of variable thickness coatings on electrodes to provide for gray scale.
摘要:
A method for addressing a bistable electro-optic display having at least one pixel comprises applying an addressing pulse to drive the pixel to a first optical state; leaving the pixel undriven for a period of time, thereby permitting the pixel to assume a second optical state different from the first optical state; and applying to the pixel a refresh pulse which substantially restores the pixel to the first optical state, the refresh pulse being short relative to the addressing pulse.
摘要:
Improvements and modifications are provided in the type of frustrated total internal reflection electrophoretic systems described in U.S. Pat. No. 6,215,920. The improvements and modifications include (a) conforming the rear electrode to the shape of the front electrode; (b) encapsulating the electrophoretic medium and particles; (c) modifying the viscosity of the electrophoretic medium; (d) polymer coating the electrophoretic particles; (e) use of a high volume fraction of electrophoretic particles; (f) tethering the electrophoretic particles to the reflecting sheet; (g) using particles of varying electrophoretic mobility; (h) controlling the shape of the electrophoretic particles; (i) use of a low refractive index layer over the channel electrode; (j) providing cross-walls within the electrophoretic medium; (k) use of two immiscible liquids as the electrophoretic medium; and (I) replacing the electrophoretic particles with ones containing absorbing and/or scattering centers within a light transmissive matrix.