摘要:
Disclosed is a high-definition display apparatus which allows a write current having an adequate value to flow. The display apparatus comprises a plurality of signal lines, a plurality of optical elements which presents display as a drive current equal in value to a write current flowing in the signal lines flows, and a current control driver which is connected to one ends of the signal lines, reduces the current value of a gradation signal by a current reduction ratio and lets the write current flow in the signal lines.
摘要:
A carrier-injection type organic electroluminescent device includes, provided on a substrate, a transparent anode electrode, and a hole transport layer containing hole-transporting poly(N-vinylcarbazole) and 2,5-bis(1-naphthyl)-oxadiazole, and 3-(2'-benzothiazoyl)-7-diethylaminocoumarin as a fluorescent material which absorbs light within a predetermined wavelength range and emits light having a longer wavelength. Further included are an electron transport layer containing an electron-transporting tris(8-quinolinolate)aluminum complex, and a cathode electrode. When a voltage is applied between the anode and the cathode, the fluorescent material absorbs light emitted by the recombination of electrons and holes, and emits visible light.
摘要:
A display panel includes an optical element which has a pair of electrodes and exhibits an optical operation corresponding to an electric current flowing between the electrodes, and a switch circuit which supplies a memory current having a predetermined current value to a current line during a selection period, and stops the supply of the memory current to the current line during a non-selection period. A current memory circuit stores current data corresponding to the current value of the memory current flowing through the current line during the selection period and, in accordance with the current data stored during the selection period, supplies a display current having a current value substantially equal to the memory current to the optical element during the non-selection period.
摘要:
Disclosed is a high-definition display apparatus which allows a write current having an adequate value to flow. The display apparatus comprises a plurality of signal lines, a plurality of optical elements which presents display as a drive current equal in value to a write current flowing in the signal lines flows, and a current control driver which is connected to one ends of the signal lines, reduces the current value of a gradation signal by a current reduction ratio and lets the write current flow in the signal lines.
摘要:
An optical address section, a display section and light waveguides are provided on a substrate. The light waveguides are located between the optical address section and the display section. The optical address section includes first light emission elements, while the display section includes data electrodes, phototransistors and second light emission elements. The light emitted from the first light emission elements enters the phototransistors of the display section through the light waveguides and drives the phototransistors. In accordance with the phototransistors selected, the second light emission elements emit light upon application of a voltage of the data electrodes.
摘要:
A display device includes a plurality of scanning lines (X1-Xm), a plurality of signal lines (Y1-Yn), a scanning driver (5) which sequentially supplies to the scanning lines selection signals that select the scanning lines, a data driver (3) which supplies a designation current to the plurality of signal lines within a selection period when the scanning lines are being selected, a plurality of pixel circuits which supplies a driving current corresponding to a current value of the designation current that flows to the signal lines, a plurality of optical elements (E1,1-Em,n) which emit light in accordance with the driving current supplied by the plurality of pixel is circuits and a power supply (6) which outputs to the plurality of pixel circuits a driving current reference voltage to supply the driving current.
摘要:
An organic electroluminescence device is placed as a back light of a liquid crystal display panel. The organic electroluminescence device is constituted by a front electrode (#112) having transparency to visible light, a rear electrode (#113) having reflection to visible light and an organic electroluminescence layer (#114) for emitting light as a predetermined voltage is applied between the front and rear electrodes. A scatter control member (#120), located between the liquid crystal panel and the organic electroluminescence panel, passes incident light within a predetermined range without scattering and passes light outside the predetermined range with scattering. Preferably, the scatter control member is constituted by a plurality of lightguiding portions (#121) having transparency to visible light and a plurality of reflection films (#122) having a reflection property to visible light.
摘要:
A display panel including a plurality of pixels. Each pixel includes: a light emitting element; a pixel circuit having a driving transistor connected to the light emitting element in series; a data line to which a data current is supplied through the pixel circuit; a scanning line for selecting the pixel circuit; a first insulation film to cover the data line; and a second insulation film made of a material different from the first insulation film, to cover the data line and the first insulation film, wherein the following expression is satisfied. C total 20 ≦ ɛ 0 ɛ a ɛ b ɛ a D b + ɛ b D a ≦ C total 5 Ctotal: parasitic capacitance of whole path to data line through pixel circuit; ∈0: vacuum dielectric constant; ∈a: relative dielectric constant of first insulation film; Da: first insulation film thickness; ∈b: relative dielectric constant of second insulation film; Db: second insulation film thickness.
摘要翻译:包括多个像素的显示面板。 每个像素包括:发光元件; 具有与发光元件串联连接的驱动晶体管的像素电路; 通过像素电路提供数据电流的数据线; 用于选择像素电路的扫描线; 覆盖数据线的第一绝缘膜; 以及由不同于第一绝缘膜的材料制成的覆盖数据线和第一绝缘膜的第二绝缘膜,其中满足以下表达式。 C总共20≦̸ ɛ0εaεεbɛa D b +ɛb D a≦̸ C总共5个Ctotal:通过像素电路的数据线的整个路径的寄生电容; ∈0:真空介电常数; ∈a:第一绝缘膜的相对介电常数; Da:第一绝缘膜厚度; ∈b:第二绝缘膜的相对介电常数; Db:第二绝缘膜厚度。
摘要:
A display panel including a plurality of pixels. Each pixel includes: a light emitting element; a pixel circuit having a driving transistor connected to the light emitting element in series; a data line to which a data current is supplied through the pixel circuit; a scanning line for selecting the pixel circuit; a first insulation film to cover the data line; and a second insulation film made of a material different from the first insulation film, to cover the data line and the first insulation film, wherein the following expression is satisfied. C total 20 ≦ ɛ 0 ɛ a ɛ b ɛ a D b + ɛ b D a ≦ C total 5 Ctotal: parasitic capacitance of whole path to data line through pixel circuit; ∈0: vacuum dielectric constant; ∈a: relative dielectric constant of first insulation film; Da: first insulation film thickness; ∈b: relative dielectric constant of second insulation film; Db: second insulation film thickness
摘要:
A display device includes an EL element for signal light which is based on the segment matrix drive scheme and causes a plurality of areas to emit signal light containing light in a wavelength range other than the visible range, a photoconductive layer which generates carriers upon incidence of signal light, and an EL element for display light which is adjacent to the photoconductive layer. Signal light is irradiated onto desired areas of the photoconductive layer. Carriers are injected from the irradiated areas into the EL layer to emit display light containing visible light.